PREFIX = .
DIST_DIR = ${PREFIX}/dist
-RHINO ?= java -jar ${BUILD_DIR}/js.jar
-
-CLOSURE_COMPILER = ${BUILD_DIR}/google-compiler-20100917.jar
-
-MINJAR ?= java -jar ${CLOSURE_COMPILER}
+JS_ENGINE ?= node
+COMPILER = ${JS_ENGINE} ${BUILD_DIR}/uglify.js --unsafe
BASE_FILES = ${SRC_DIR}/core.js\
${SRC_DIR}/support.js\
lint: ${JQ}
@@echo "Checking jQuery against JSLint..."
- @@${RHINO} build/jslint-check.js
+ @@${JS_ENGINE} build/jslint-check.js
min: ${JQ_MIN}
${JQ_MIN}: ${JQ}
@@echo "Building" ${JQ_MIN}
-
- @@head -15 ${JQ} > ${JQ_MIN}
- @@${MINJAR} --js ${JQ} --warning_level QUIET --js_output_file ${JQ_MIN}.tmp
- @@cat ${JQ_MIN}.tmp >> ${JQ_MIN}
- @@rm -f ${JQ_MIN}.tmp
+ @@${COMPILER} ${JQ} > ${JQ_MIN}
clean:
@@echo "Removing Distribution directory:" ${DIST_DIR}
[jQuery](http://jquery.com/) - New Wave Javascript
-================================
+==================================================
What you need to build your own jQuery
----------------------------------------
-* Make sure that you have Java installed (if you want to build a minified version of jQuery).
-If not, [go to this page](http://java.sun.com/javase/downloads/index.jsp) and download "Java Runtime Environment (JRE) 5.0"
+--------------------------------------
-Build Options
---------------
+In order to build jQuery, you need to have GNU make 3.8 or later, Node.js 0.2 or later, and git 1.7 or later.
+(Earlier versions might work OK, but are not tested.)
-You now have **three** options for building jQuery:
+Windows users have two options:
-* **`make`**: If you have access to common UNIX commands (like `make`, `mkdir`, `rm`, `cat`, and `echo`) then simply type `make` to build all the components.
+1. Install [msysgit](https://code.google.com/p/msysgit/) (Full installer for official Git),
+ [GNU make for Windows](http://gnuwin32.sourceforge.net/packages/make.htm), and a
+ [binary version of Node.js](http://node-js.prcn.co.cc/). Make sure all three packages are installed to the same
+ location (by default, this is C:\Program Files\Git).
+2. Install [Cygwin](http://cygwin.com/) (remember to install the git and make packages) and follow the
+ [Node.js build instructions](https://github.com/ry/node/wiki/Building-node.js-on-Cygwin-%28Windows%29) or install
+ the [binary version of Node.js](http://node-js.prcn.co.cc/).
-* **`rake`**: If you have Ruby Rake installed (on either Windows or UNIX/Linux), you can simply type `rake` to build all the components.
+Mac OS users should install Xcode (comes on your Mac OS install DVD, or downloadable from
+[Apple's Xcode site](http://developer.apple.com/technologies/xcode.html)) and
+[http://mxcl.github.com/homebrew/](Homebrew). Once Homebrew is installed, run `brew install git` to install git,
+and `brew install node` to install Node.js.
-* **`ant`**: If you have Ant installed (or are on Windows and don't have access to make). You can download Ant from here: [http://ant.apache.org/bindownload.cgi].
+Linux/BSD users should use their appropriate package managers to install make, git, and node, or build from source
+if you swing that way. Easy-peasy.
-How to build your own jQuery
------------------------------
-
-*Note: If you are using either `rake` or `ant`, substitute your chosen method in place of `make` in the examples below. They work identically for all intents and purposes. Quick reference is also available for `rake` by typing `rake -T` in the `jquery` directory.*
-
-In the main directory of the distribution (the one that this file is in), type
-the following to make all versions of jQuery:
-
- make
-
-*Here are the individual items that are buildable from the Makefile:*
-
- make init
-Pull in all the external dependencies (QUnit, Sizzle) for the project.
-
- make jquery
-
-The standard, uncompressed, jQuery code.
-Makes: `./dist/jquery.js`
-
- make min
-
-A compressed version of jQuery (made the Closure Compiler).
-Makes: `./dist/jquery.min.js`
+How to build your own jQuery
+----------------------------
- make lint
+First, clone a copy of the main jQuery git repo by running `git clone git://github.com/jquery/jquery.git`.
-Tests a build of jQuery against JSLint, looking for potential errors or bits of confusing code.
+Then, to get a complete, minified, jslinted version of jQuery, simply `cd` to the `jquery` directory and type
+`make`. If you don't have Node installed and/or want to make a basic, uncompressed, unlinted version of jQuery, use
+`make jquery` instead of `make`.
- make selector
+The built version of jQuery will be put in the `dist/` subdirectory.
-Builds the selector library for jQuery from Sizzle.
-Makes: `./src/selector.js`
+To remove all built files, run `make clean`.
-Finally, you can remove all the built files using the command:
-
- make clean
Building to a different directory
-----------------------------------
+---------------------------------
-If you want to build jQuery to a directory that is different from the default location, you can...
+If you want to build jQuery to a directory that is different from the default location, you can specify the PREFIX
+directory: `make PREFIX=/home/jquery/test/ [command]`
-**Make only:** Specify the PREFIX directory, for example:
-
- make PREFIX=/home/john/test/ [command]
-
-With this example, the output files would be contained in `/home/john/test/dist/`
+With this example, the output files would end up in `/home/jquery/test/dist/`.
-**Rake only:** Define the DIST_DIR directory, for example:
- rake DIST_DIR=/home/john/test/ [command]
-
-With this example, the output files would be contained in `/home/john/test/`
+Troubleshooting
+---------------
-*In both examples, `[command]` is optional.*
+Sometimes, the various git repositories get into an inconsistent state where builds don't complete properly
+(usually this results in the jquery.js or jquery.min.js being 0 bytes). If this happens, run `make clean`, then
+run `make` again.
-**Ant only:** You cannot currently build to another directory when using Ant.
Questions?
----------
-If you have any questions, please feel free to ask them on the Developing jQuery Core
-forum, which can be found here:
-[http://forum.jquery.com/developing-jquery-core](http://forum.jquery.com/developing-jquery-core)
+If you have any questions, please feel free to ask on the
+[Developing jQuery Core forum](http://forum.jquery.com/developing-jquery-core) or in #jquery on irc.freenode.net.
+++ /dev/null
-prefix = File.dirname( __FILE__ )
-
-# Directory variables
-src_dir = File.join( prefix, 'src' )
-build_dir = File.join( prefix, 'build' )
-test_dir = File.join( prefix, 'test' )
-
-# A different destination directory can be set by
-# setting DIST_DIR before calling rake
-dist_dir = ENV['DIST_DIR'] || File.join( prefix, 'dist' )
-
-base_files = %w{
- intro
- core
- support
- data
- queue
- attributes
- event
- selector
- traversing
- manipulation
- css
- ajax
- ajax/jsonp
- ajax/script
- ajax/xhr
- effects
- offset
- dimensions
- outro
-}.map { |js| File.join( src_dir, "#{js}.js" ) }
-
-# Sizzle, QUnit and jQuery files/dirs
-sizzle_dir = File.join( src_dir, "sizzle" )
-sizzle = File.join( sizzle_dir, "sizzle.js" )
-selector = File.join( src_dir, "selector.js" )
-
-qunit_dir = File.join( test_dir, "qunit" )
-qunit = File.join( qunit_dir, "qunit", "qunit.js" )
-
-jq = File.join( dist_dir, "jquery.js" )
-jq_min = File.join( dist_dir, "jquery.min.js" )
-
-# General Variables
-date = `git log -1`[/^Date:\s+(.+)$/, 1]
-version = File.read( File.join( prefix, 'version.txt' ) ).strip
-
-# Build tools
-rhino = "java -jar #{build_dir}/js.jar"
-minfier = "java -jar #{build_dir}/google-compiler-20100917.jar"
-
-# Turn off output other than needed from `sh` and file commands
-verbose(false)
-
-# Tasks
-task :default => "all"
-
-desc "Builds jQuery; Tests with JSLint; Minifies jQuery"
-task :all => [:jquery, :lint, :min] do
- puts "jQuery build complete."
-end
-
-desc "Builds jQuery: jquery.js (Default task)"
-task :jquery => [:selector, jq]
-
-desc "Builds a minified version of jQuery: jquery.min.js"
-task :min => jq_min
-
-
-task :init => [sizzle, qunit] do
- sizzle_git = File.join(sizzle_dir, '.git')
- qunit_git = File.join(qunit_dir, '.git')
-
- puts "Updating SizzleJS with latest..."
- sh "git --git-dir=#{sizzle_git} pull -q origin master"
-
- puts "Updating QUnit with latest..."
- sh "git --git-dir=#{qunit_git} pull -q origin master"
-end
-
-desc "Removes dist folder, selector.js, and Sizzle/QUnit"
-task :clean do
- puts "Removing Distribution directory: #{dist_dir}..."
- rm_rf dist_dir
-
- puts "Removing built copy of Sizzle..."
- rm_rf selector
-
- puts "Removing cloned directories..."
- rm_rf qunit_dir
- rm_rf sizzle_dir
-end
-
-desc "Rebuilds selector.js from SizzleJS"
-task :selector => [:init, selector]
-
-desc "Tests built jquery.js against JSLint"
-task :lint => jq do
- puts "Checking jQuery against JSLint..."
- sh "#{rhino} " + File.join(build_dir, 'jslint-check.js')
-end
-
-
-# File and Directory Dependencies
-directory dist_dir
-
-file jq => [dist_dir, base_files].flatten do
- puts "Building jquery.js..."
-
- File.open(jq, 'w') do |f|
- f.write cat(base_files).
- gsub(/@DATE/, date).
- gsub(/@VERSION/, version).
- gsub(/.function..jQuery...\{/, '').
- gsub(/\}...jQuery..;/, '')
- end
-end
-
-file jq_min => jq do
- puts "Building jquery.min.js..."
-
- sh "#{minfier} --js #{jq} --warning_level QUIET --js_output_file #{jq_min}"
-
- min = File.read( jq_min )
-
- # Equivilent of "head"
- File.open(jq_min, 'w') do |f|
- f.write File.readlines(jq)[0..14].join()
- f.write min
- end
-end
-
-file selector => [sizzle, :init] do
- puts "Building selector code from Sizzle..."
-
- File.open(selector, 'w') do |f|
- f.write File.read(sizzle).gsub(
- /^.+EXPOSE$\n/,
- '\0' + File.read( File.join( src_dir, 'sizzle-jquery.js' ))
- ).gsub(
- /^window.Sizzle.+$\n/, ''
- )
- end
-end
-
-file sizzle do
- puts "Retrieving SizzleJS from Github..."
- sh "git clone git://github.com/jeresig/sizzle.git #{sizzle_dir}"
-end
-
-file qunit do
- puts "Retrieving QUnit from Github..."
- sh "git clone git://github.com/jquery/qunit.git #{qunit_dir}"
-end
-
-
-def cat( files )
- files.map do |file|
- File.read(file)
- end.join('')
-end
+++ /dev/null
-<project name="jQuery" default="all" basedir=".">
-
- <loadfile property="version" srcfile="version.txt" />
- <property name="PREFIX" value="." />
- <property description="Folder for jquery and min target" name="dist" value="${PREFIX}/dist" />
-
- <property name="JQ" value="${dist}/jquery.js" />
- <property name="JQ_MIN" value="${dist}/jquery.min.js" />
-
- <loadfile property="sizzle-exports" srcfile="src/sizzle-jquery.js" />
-
- <available property="qunit" file="test/qunit" />
- <available property="sizzle" file="src/sizzle" />
-
- <target name="all" depends="jquery,lint,min" />
-
- <target name="qunit-clone" unless="qunit">
- <exec executable="git" outputproperty="git-qunit" >
- <arg line="clone git://github.com/jquery/qunit.git test/qunit" />
- </exec>
- <echo message="git clone qunit: ${git-qunit}" />
- </target>
- <target name="qunit-pull" if="qunit">
- <exec executable="git" outputproperty="git-qunit" dir="test/qunit" >
- <arg line="pull origin master" />
- </exec>
- <echo message="git pull sizzle: ${git-qunit}" />
- </target>
- <target name="sizzle-clone" unless="sizzle">
- <exec executable="git" outputproperty="git-sizzle" >
- <arg line="clone git://github.com/jeresig/sizzle.git src/sizzle" />
- </exec>
- <echo message="git clone sizzle: ${git-sizzle}" />
- </target>
- <target name="sizzle-pull" if="sizzle">
- <exec executable="git" outputproperty="git-sizzle" dir="src/sizzle" >
- <arg line="pull origin master" />
- </exec>
- <echo message="git pull sizzle: ${git-sizzle}" />
- </target>
-
- <target name="init" depends="qunit-clone,qunit-pull,sizzle-clone,sizzle-pull" />
-
- <target name="selector" depends="init" description="Builds the selector library for jQuery from Sizzle.">
- <copy file="src/sizzle/sizzle.js" tofile="src/selector.js" overwrite="true" />
- <replaceregexp match="// EXPOSE(.*) " replace="// EXPOSE\1 ${sizzle-exports}" file="src/selector.js" />
- <replaceregexp match="window.Sizzle(.*) " replace="" file="src/selector.js" />
- </target>
-
- <target name="jquery" depends="init,selector" description="Main jquery build, concatenates source files and replaces @VERSION">
- <echo message="Building ${JQ}" />
- <mkdir dir="${dist}" />
- <concat destfile="${JQ}">
- <fileset file="src/intro.js" />
- <fileset file="src/core.js" />
- <fileset file="src/support.js" />
- <fileset file="src/data.js" />
- <fileset file="src/queue.js" />
- <fileset file="src/attributes.js" />
- <fileset file="src/event.js" />
- <fileset file="src/selector.js" />
- <fileset file="src/traversing.js" />
- <fileset file="src/manipulation.js" />
- <fileset file="src/css.js" />
- <fileset file="src/ajax.js" />
- <fileset file="src/ajax/jsonp.js" />
- <fileset file="src/ajax/script.js" />
- <fileset file="src/ajax/xhr.js" />
- <fileset file="src/effects.js" />
- <fileset file="src/offset.js" />
- <fileset file="src/dimensions.js" />
- <fileset file="src/outro.js" />
- </concat>
- <replaceregexp match="@VERSION" replace="${version}" flags="g" byline="true" file="${JQ}" />
- <exec executable="git" outputproperty="date">
- <arg line="log -1 --pretty=format:%ad" />
- </exec>
- <replaceregexp match="(\(\s*function\s*\(\s*jQuery\s*\)\s*\{)|(\}\s*\)\s*\(\s*jQuery\s*\)\s*;)" flags="g" replace="" file="${JQ}" />
- <replaceregexp match="@DATE" replace="${date}" file="${JQ}" />
- <echo message="${JQ} built." />
- </target>
-
- <target name="lint" depends="jquery" description="Check jQuery against JSLint">
- <exec executable="java">
- <arg line="-jar build/js.jar build/jslint-check.js" />
- </exec>
- </target>
-
- <target name="min" depends="jquery" description="Remove all comments and whitespace, no compression, great in combination with GZip">
- <echo message="Building ${JQ_MIN}" />
- <apply executable="java" parallel="false" verbose="true" dest="${dist}">
- <fileset dir="${dist}">
- <include name="jquery.js" />
- </fileset>
- <arg line="-jar" />
- <arg path="build/google-compiler-20100917.jar" />
- <arg value="--warning_level" />
- <arg value="QUIET" />
- <arg value="--js_output_file" />
- <targetfile />
- <arg value="--js" />
- <mapper type="glob" from="jquery.js" to="tmpmin" />
- </apply>
- <concat destfile="${JQ_MIN}">
- <filelist files="${JQ}, ${dist}/tmpmin" />
- <filterchain>
- <headfilter lines="15" />
- </filterchain>
- </concat>
- <concat destfile="${JQ_MIN}" append="yes">
- <filelist files="${dist}/tmpmin" />
- </concat>
- <delete file="${dist}/tmpmin" />
- <echo message="${JQ_MIN} built." />
- </target>
-
- <target name="clean">
- <delete dir="${dist}" />
- <delete file="src/selector.js" />
- <delete dir="test/qunit" />
- <delete dir="src/sizzle" />
- </target>
-
- <target name="openAjaxMetadata">
- <property name="target" value="openAjaxMetadata-jquery-${version}.xml" />
- <delete file="${dist}/jquery-*.xml" />
- <get src="http://www.exfer.net/jquery/createjQueryXMLDocs.py?version=1.3" dest="${target}" />
- <xslt includes="${target}" excludes="build.xml" destdir="./dist" style="build/style.xsl" extension=".xml" />
- <delete file="${target}" />
- </target>
-
-</project>
-load("build/jslint.js");
-
-var src = readFile("dist/jquery.js");
+var JSLINT = require("./lib/jslint").JSLINT,
+ print = require("sys").print,
+ src = require("fs").readFileSync("dist/jquery.js", "utf8");
JSLINT(src, { evil: true, forin: true, maxerr: 100 });
}
if ( found > 0 ) {
- print( "\n" + found + " Error(s) found." );
+ print( "\n" + found + " Error(s) found.\n" );
} else {
- print( "JSLint check passed." );
+ print( "JSLint check passed.\n" );
}
+++ /dev/null
-// jslint.js
-// 2010-02-20
-
-/*
-Copyright (c) 2002 Douglas Crockford (www.JSLint.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-The Software shall be used for Good, not Evil.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-*/
-
-/*
- JSLINT is a global function. It takes two parameters.
-
- var myResult = JSLINT(source, option);
-
- The first parameter is either a string or an array of strings. If it is a
- string, it will be split on '\n' or '\r'. If it is an array of strings, it
- is assumed that each string represents one line. The source can be a
- JavaScript text, or HTML text, or a Konfabulator text.
-
- The second parameter is an optional object of options which control the
- operation of JSLINT. Most of the options are booleans: They are all are
- optional and have a default value of false.
-
- If it checks out, JSLINT returns true. Otherwise, it returns false.
-
- If false, you can inspect JSLINT.errors to find out the problems.
- JSLINT.errors is an array of objects containing these members:
-
- {
- line : The line (relative to 0) at which the lint was found
- character : The character (relative to 0) at which the lint was found
- reason : The problem
- evidence : The text line in which the problem occurred
- raw : The raw message before the details were inserted
- a : The first detail
- b : The second detail
- c : The third detail
- d : The fourth detail
- }
-
- If a fatal error was found, a null will be the last element of the
- JSLINT.errors array.
-
- You can request a Function Report, which shows all of the functions
- and the parameters and vars that they use. This can be used to find
- implied global variables and other problems. The report is in HTML and
- can be inserted in an HTML <body>.
-
- var myReport = JSLINT.report(limited);
-
- If limited is true, then the report will be limited to only errors.
-
- You can request a data structure which contains JSLint's results.
-
- var myData = JSLINT.data();
-
- It returns a structure with this form:
-
- {
- errors: [
- {
- line: NUMBER,
- character: NUMBER,
- reason: STRING,
- evidence: STRING
- }
- ],
- functions: [
- name: STRING,
- line: NUMBER,
- last: NUMBER,
- param: [
- STRING
- ],
- closure: [
- STRING
- ],
- var: [
- STRING
- ],
- exception: [
- STRING
- ],
- outer: [
- STRING
- ],
- unused: [
- STRING
- ],
- global: [
- STRING
- ],
- label: [
- STRING
- ]
- ],
- globals: [
- STRING
- ],
- member: {
- STRING: NUMBER
- },
- unuseds: [
- {
- name: STRING,
- line: NUMBER
- }
- ],
- implieds: [
- {
- name: STRING,
- line: NUMBER
- }
- ],
- urls: [
- STRING
- ],
- json: BOOLEAN
- }
-
- Empty arrays will not be included.
-
-*/
-
-/*jslint
- evil: true, nomen: false, onevar: false, regexp: false, strict: true
-*/
-
-/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%",
- "(begin)", "(breakage)", "(context)", "(error)", "(global)",
- "(identifier)", "(last)", "(line)", "(loopage)", "(name)", "(onevar)",
- "(params)", "(scope)", "(verb)", "*", "+", "++", "-", "--", "\/",
- "<", "<=", "==", "===", ">", ">=", ADSAFE, Array, Boolean,
- COM, Canvas, CustomAnimation, Date, Debug, E, Error, EvalError,
- FadeAnimation, Flash, FormField, Frame, Function, HotKey, Image, JSON,
- LN10, LN2, LOG10E, LOG2E, MAX_VALUE, MIN_VALUE, Math, MenuItem,
- MoveAnimation, NEGATIVE_INFINITY, Number, Object, Option, PI,
- POSITIVE_INFINITY, Point, RangeError, Rectangle, ReferenceError, RegExp,
- ResizeAnimation, RotateAnimation, SQRT1_2, SQRT2, ScrollBar, String,
- Style, SyntaxError, System, Text, TextArea, Timer, TypeError, URIError,
- URL, Web, Window, XMLDOM, XMLHttpRequest, "\\", a, abbr, acronym,
- addEventListener, address, adsafe, alert, aliceblue, animator,
- antiquewhite, appleScript, applet, apply, approved, aqua, aquamarine,
- area, arguments, arity, autocomplete, azure, b, background,
- "background-attachment", "background-color", "background-image",
- "background-position", "background-repeat", base, bdo, beep, beige, big,
- bisque, bitwise, black, blanchedalmond, block, blockquote, blue,
- blueviolet, blur, body, border, "border-bottom", "border-bottom-color",
- "border-bottom-style", "border-bottom-width", "border-collapse",
- "border-color", "border-left", "border-left-color", "border-left-style",
- "border-left-width", "border-right", "border-right-color",
- "border-right-style", "border-right-width", "border-spacing",
- "border-style", "border-top", "border-top-color", "border-top-style",
- "border-top-width", "border-width", bottom, br, brown, browser,
- burlywood, button, bytesToUIString, c, cadetblue, call, callee, caller,
- canvas, cap, caption, "caption-side", cases, center, charAt, charCodeAt,
- character, chartreuse, chocolate, chooseColor, chooseFile, chooseFolder,
- cite, clear, clearInterval, clearTimeout, clip, close, closeWidget,
- closed, closure, cm, code, col, colgroup, color, comment, condition,
- confirm, console, constructor, content, convertPathToHFS,
- convertPathToPlatform, coral, cornflowerblue, cornsilk,
- "counter-increment", "counter-reset", create, crimson, css, cursor,
- cyan, d, darkblue, darkcyan, darkgoldenrod, darkgray, darkgreen,
- darkkhaki, darkmagenta, darkolivegreen, darkorange, darkorchid, darkred,
- darksalmon, darkseagreen, darkslateblue, darkslategray, darkturquoise,
- darkviolet, data, dd, debug, decodeURI, decodeURIComponent, deeppink,
- deepskyblue, defaultStatus, defineClass, del, deserialize, devel, dfn,
- dimension, dimgray, dir, direction, display, div, dl, document,
- dodgerblue, dt, edition, else, em, embed, empty, "empty-cells",
- encodeURI, encodeURIComponent, entityify, eqeqeq, errors, escape, eval,
- event, evidence, evil, ex, exception, exec, exps, fieldset, filesystem,
- firebrick, first, float, floor, floralwhite, focus, focusWidget, font,
- "font-face", "font-family", "font-size", "font-size-adjust",
- "font-stretch", "font-style", "font-variant", "font-weight",
- forestgreen, forin, form, fragment, frame, frames, frameset, from,
- fromCharCode, fuchsia, fud, funct, function, functions, g, gainsboro,
- gc, getComputedStyle, ghostwhite, global, globals, gold, goldenrod,
- gray, green, greenyellow, h1, h2, h3, h4, h5, h6, hasOwnProperty, head,
- height, help, history, honeydew, hotpink, hr, html, i, iTunes, id,
- identifier, iframe, img, immed, implieds, in, include, indent, indexOf,
- indianred, indigo, init, input, ins, isAlpha, isApplicationRunning,
- isDigit, isFinite, isNaN, ivory, join, jslint, json, kbd, khaki,
- konfabulatorVersion, label, labelled, lang, last, lavender,
- lavenderblush, lawngreen, laxbreak, lbp, led, left, legend,
- lemonchiffon, length, "letter-spacing", li, lib, lightblue, lightcoral,
- lightcyan, lightgoldenrodyellow, lightgreen, lightpink, lightsalmon,
- lightseagreen, lightskyblue, lightslategray, lightsteelblue,
- lightyellow, lime, limegreen, line, "line-height", linen, link,
- "list-style", "list-style-image", "list-style-position",
- "list-style-type", load, loadClass, location, log, m, magenta, map,
- margin, "margin-bottom", "margin-left", "margin-right", "margin-top",
- "marker-offset", maroon, match, "max-height", "max-width", maxerr, maxlen,
- md5, media, mediumaquamarine, mediumblue, mediumorchid, mediumpurple,
- mediumseagreen, mediumslateblue, mediumspringgreen, mediumturquoise,
- mediumvioletred, member, menu, message, meta, midnightblue,
- "min-height", "min-width", mintcream, mistyrose, mm, moccasin, moveBy,
- moveTo, name, navajowhite, navigator, navy, new, newcap, noframes,
- nomen, noscript, nud, object, ol, oldlace, olive, olivedrab, on,
- onbeforeunload, onblur, onerror, onevar, onfocus, onload, onresize,
- onunload, opacity, open, openURL, opener, opera, optgroup, option,
- orange, orangered, orchid, outer, outline, "outline-color",
- "outline-style", "outline-width", overflow, "overflow-x", "overflow-y",
- p, padding, "padding-bottom", "padding-left", "padding-right",
- "padding-top", page, "page-break-after", "page-break-before",
- palegoldenrod, palegreen, paleturquoise, palevioletred, papayawhip,
- param, parent, parseFloat, parseInt, passfail, pc, peachpuff, peru,
- pink, play, plum, plusplus, pop, popupMenu, position, powderblue, pre,
- predef, preferenceGroups, preferences, print, prompt, prototype, pt,
- purple, push, px, q, quit, quotes, random, range, raw, reach, readFile,
- readUrl, reason, red, regexp, reloadWidget, removeEventListener,
- replace, report, reserved, resizeBy, resizeTo, resolvePath,
- resumeUpdates, rhino, right, rosybrown, royalblue, runCommand,
- runCommandInBg, saddlebrown, safe, salmon, samp, sandybrown, saveAs,
- savePreferences, screen, script, scroll, scrollBy, scrollTo, seagreen,
- seal, search, seashell, select, serialize, setInterval, setTimeout,
- shift, showWidgetPreferences, sidebar, sienna, silver, skyblue,
- slateblue, slategray, sleep, slice, small, snow, sort, span, spawn,
- speak, split, springgreen, src, status, steelblue, strict, strong,
- style, styleproperty, sub, substr, sup, supplant, suppressUpdates, sync,
- system, table, "table-layout", tan, tbody, td, teal, tellWidget, test,
- "text-align", "text-decoration", "text-indent", "text-shadow",
- "text-transform", textarea, tfoot, th, thead, thistle, title,
- toLowerCase, toString, toUpperCase, toint32, token, tomato, top, tr, tt,
- turquoise, type, u, ul, undef, unescape, "unicode-bidi", unused,
- unwatch, updateNow, urls, value, valueOf, var, version,
- "vertical-align", violet, visibility, watch, wheat, white,
- "white-space", whitesmoke, widget, width, "word-spacing", "word-wrap",
- yahooCheckLogin, yahooLogin, yahooLogout, yellow, yellowgreen,
- "z-index"
-*/
-
-
-// We build the application inside a function so that we produce only a single
-// global variable. The function will be invoked, its return value is the JSLINT
-// application itself.
-
-"use strict";
-
-var JSLINT = (function () {
- var adsafe_id, // The widget's ADsafe id.
- adsafe_may, // The widget may load approved scripts.
- adsafe_went, // ADSAFE.go has been called.
- anonname, // The guessed name for anonymous functions.
- approved, // ADsafe approved urls.
-
- atrule = {
- media : true,
- 'font-face': true,
- page : true
- },
-
-// These are operators that should not be used with the ! operator.
-
- bang = {
- '<': true,
- '<=': true,
- '==': true,
- '===': true,
- '!==': true,
- '!=': true,
- '>': true,
- '>=': true,
- '+': true,
- '-': true,
- '*': true,
- '/': true,
- '%': true
- },
-
-// These are members that should not be permitted in the safe subset.
-
- banned = { // the member names that ADsafe prohibits.
- 'arguments' : true,
- callee : true,
- caller : true,
- constructor : true,
- 'eval' : true,
- prototype : true,
- unwatch : true,
- valueOf : true,
- watch : true
- },
-
-
-// These are the JSLint boolean options.
-
- boolOptions = {
- adsafe : true, // if ADsafe should be enforced
- bitwise : true, // if bitwise operators should not be allowed
- browser : true, // if the standard browser globals should be predefined
- cap : true, // if upper case HTML should be allowed
- css : true, // if CSS workarounds should be tolerated
- debug : true, // if debugger statements should be allowed
- devel : true, // if logging should be allowed (console, alert, etc.)
- eqeqeq : true, // if === should be required
- evil : true, // if eval should be allowed
- forin : true, // if for in statements must filter
- fragment : true, // if HTML fragments should be allowed
- immed : true, // if immediate invocations must be wrapped in parens
- laxbreak : true, // if line breaks should not be checked
- newcap : true, // if constructor names must be capitalized
- nomen : true, // if names should be checked
- on : true, // if HTML event handlers should be allowed
- onevar : true, // if only one var statement per function should be allowed
- passfail : true, // if the scan should stop on first error
- plusplus : true, // if increment/decrement should not be allowed
- regexp : true, // if the . should not be allowed in regexp literals
- rhino : true, // if the Rhino environment globals should be predefined
- undef : true, // if variables should be declared before used
- safe : true, // if use of some browser features should be restricted
- sidebar : true, // if the System object should be predefined
- strict : true, // require the "use strict"; pragma
- sub : true, // if all forms of subscript notation are tolerated
- white : true, // if strict whitespace rules apply
- widget : true // if the Yahoo Widgets globals should be predefined
- },
-
-// browser contains a set of global names which are commonly provided by a
-// web browser environment.
-
- browser = {
- addEventListener: false,
- blur : false,
- clearInterval : false,
- clearTimeout : false,
- close : false,
- closed : false,
- defaultStatus : false,
- document : false,
- event : false,
- focus : false,
- frames : false,
- getComputedStyle: false,
- history : false,
- Image : false,
- length : false,
- location : false,
- moveBy : false,
- moveTo : false,
- name : false,
- navigator : false,
- onbeforeunload : true,
- onblur : true,
- onerror : true,
- onfocus : true,
- onload : true,
- onresize : true,
- onunload : true,
- open : false,
- opener : false,
- Option : false,
- parent : false,
- print : false,
- removeEventListener: false,
- resizeBy : false,
- resizeTo : false,
- screen : false,
- scroll : false,
- scrollBy : false,
- scrollTo : false,
- setInterval : false,
- setTimeout : false,
- status : false,
- top : false,
- XMLHttpRequest : false
- },
-
- cssAttributeData,
- cssAny,
-
- cssColorData = {
- "aliceblue" : true,
- "antiquewhite" : true,
- "aqua" : true,
- "aquamarine" : true,
- "azure" : true,
- "beige" : true,
- "bisque" : true,
- "black" : true,
- "blanchedalmond" : true,
- "blue" : true,
- "blueviolet" : true,
- "brown" : true,
- "burlywood" : true,
- "cadetblue" : true,
- "chartreuse" : true,
- "chocolate" : true,
- "coral" : true,
- "cornflowerblue" : true,
- "cornsilk" : true,
- "crimson" : true,
- "cyan" : true,
- "darkblue" : true,
- "darkcyan" : true,
- "darkgoldenrod" : true,
- "darkgray" : true,
- "darkgreen" : true,
- "darkkhaki" : true,
- "darkmagenta" : true,
- "darkolivegreen" : true,
- "darkorange" : true,
- "darkorchid" : true,
- "darkred" : true,
- "darksalmon" : true,
- "darkseagreen" : true,
- "darkslateblue" : true,
- "darkslategray" : true,
- "darkturquoise" : true,
- "darkviolet" : true,
- "deeppink" : true,
- "deepskyblue" : true,
- "dimgray" : true,
- "dodgerblue" : true,
- "firebrick" : true,
- "floralwhite" : true,
- "forestgreen" : true,
- "fuchsia" : true,
- "gainsboro" : true,
- "ghostwhite" : true,
- "gold" : true,
- "goldenrod" : true,
- "gray" : true,
- "green" : true,
- "greenyellow" : true,
- "honeydew" : true,
- "hotpink" : true,
- "indianred" : true,
- "indigo" : true,
- "ivory" : true,
- "khaki" : true,
- "lavender" : true,
- "lavenderblush" : true,
- "lawngreen" : true,
- "lemonchiffon" : true,
- "lightblue" : true,
- "lightcoral" : true,
- "lightcyan" : true,
- "lightgoldenrodyellow" : true,
- "lightgreen" : true,
- "lightpink" : true,
- "lightsalmon" : true,
- "lightseagreen" : true,
- "lightskyblue" : true,
- "lightslategray" : true,
- "lightsteelblue" : true,
- "lightyellow" : true,
- "lime" : true,
- "limegreen" : true,
- "linen" : true,
- "magenta" : true,
- "maroon" : true,
- "mediumaquamarine" : true,
- "mediumblue" : true,
- "mediumorchid" : true,
- "mediumpurple" : true,
- "mediumseagreen" : true,
- "mediumslateblue" : true,
- "mediumspringgreen" : true,
- "mediumturquoise" : true,
- "mediumvioletred" : true,
- "midnightblue" : true,
- "mintcream" : true,
- "mistyrose" : true,
- "moccasin" : true,
- "navajowhite" : true,
- "navy" : true,
- "oldlace" : true,
- "olive" : true,
- "olivedrab" : true,
- "orange" : true,
- "orangered" : true,
- "orchid" : true,
- "palegoldenrod" : true,
- "palegreen" : true,
- "paleturquoise" : true,
- "palevioletred" : true,
- "papayawhip" : true,
- "peachpuff" : true,
- "peru" : true,
- "pink" : true,
- "plum" : true,
- "powderblue" : true,
- "purple" : true,
- "red" : true,
- "rosybrown" : true,
- "royalblue" : true,
- "saddlebrown" : true,
- "salmon" : true,
- "sandybrown" : true,
- "seagreen" : true,
- "seashell" : true,
- "sienna" : true,
- "silver" : true,
- "skyblue" : true,
- "slateblue" : true,
- "slategray" : true,
- "snow" : true,
- "springgreen" : true,
- "steelblue" : true,
- "tan" : true,
- "teal" : true,
- "thistle" : true,
- "tomato" : true,
- "turquoise" : true,
- "violet" : true,
- "wheat" : true,
- "white" : true,
- "whitesmoke" : true,
- "yellow" : true,
- "yellowgreen" : true
- },
-
- cssBorderStyle,
- cssBreak,
-
- cssLengthData = {
- '%': true,
- 'cm': true,
- 'em': true,
- 'ex': true,
- 'in': true,
- 'mm': true,
- 'pc': true,
- 'pt': true,
- 'px': true
- },
-
- cssOverflow,
-
- devel = {
- alert : false,
- confirm : false,
- console : false,
- Debug : false,
- opera : false,
- prompt : false
- },
-
- escapes = {
- '\b': '\\b',
- '\t': '\\t',
- '\n': '\\n',
- '\f': '\\f',
- '\r': '\\r',
- '"' : '\\"',
- '/' : '\\/',
- '\\': '\\\\'
- },
-
- funct, // The current function
-
- functionicity = [
- 'closure', 'exception', 'global', 'label',
- 'outer', 'unused', 'var'
- ],
-
- functions, // All of the functions
-
- global, // The global scope
- htmltag = {
- a: {},
- abbr: {},
- acronym: {},
- address: {},
- applet: {},
- area: {empty: true, parent: ' map '},
- b: {},
- base: {empty: true, parent: ' head '},
- bdo: {},
- big: {},
- blockquote: {},
- body: {parent: ' html noframes '},
- br: {empty: true},
- button: {},
- canvas: {parent: ' body p div th td '},
- caption: {parent: ' table '},
- center: {},
- cite: {},
- code: {},
- col: {empty: true, parent: ' table colgroup '},
- colgroup: {parent: ' table '},
- dd: {parent: ' dl '},
- del: {},
- dfn: {},
- dir: {},
- div: {},
- dl: {},
- dt: {parent: ' dl '},
- em: {},
- embed: {},
- fieldset: {},
- font: {},
- form: {},
- frame: {empty: true, parent: ' frameset '},
- frameset: {parent: ' html frameset '},
- h1: {},
- h2: {},
- h3: {},
- h4: {},
- h5: {},
- h6: {},
- head: {parent: ' html '},
- html: {parent: '*'},
- hr: {empty: true},
- i: {},
- iframe: {},
- img: {empty: true},
- input: {empty: true},
- ins: {},
- kbd: {},
- label: {},
- legend: {parent: ' fieldset '},
- li: {parent: ' dir menu ol ul '},
- link: {empty: true, parent: ' head '},
- map: {},
- menu: {},
- meta: {empty: true, parent: ' head noframes noscript '},
- noframes: {parent: ' html body '},
- noscript: {parent: ' body head noframes '},
- object: {},
- ol: {},
- optgroup: {parent: ' select '},
- option: {parent: ' optgroup select '},
- p: {},
- param: {empty: true, parent: ' applet object '},
- pre: {},
- q: {},
- samp: {},
- script: {empty: true, parent: ' body div frame head iframe p pre span '},
- select: {},
- small: {},
- span: {},
- strong: {},
- style: {parent: ' head ', empty: true},
- sub: {},
- sup: {},
- table: {},
- tbody: {parent: ' table '},
- td: {parent: ' tr '},
- textarea: {},
- tfoot: {parent: ' table '},
- th: {parent: ' tr '},
- thead: {parent: ' table '},
- title: {parent: ' head '},
- tr: {parent: ' table tbody thead tfoot '},
- tt: {},
- u: {},
- ul: {},
- 'var': {}
- },
-
- ids, // HTML ids
- implied, // Implied globals
- inblock,
- indent,
- jsonmode,
- lines,
- lookahead,
- member,
- membersOnly,
- nexttoken,
- noreach,
- option,
- predefined, // Global variables defined by option
- prereg,
- prevtoken,
-
- rhino = {
- defineClass : false,
- deserialize : false,
- gc : false,
- help : false,
- load : false,
- loadClass : false,
- print : false,
- quit : false,
- readFile : false,
- readUrl : false,
- runCommand : false,
- seal : false,
- serialize : false,
- spawn : false,
- sync : false,
- toint32 : false,
- version : false
- },
-
- scope, // The current scope
-
- sidebar = {
- System : false
- },
-
- src,
- stack,
-
-// standard contains the global names that are provided by the
-// ECMAScript standard.
-
- standard = {
- Array : false,
- Boolean : false,
- Date : false,
- decodeURI : false,
- decodeURIComponent : false,
- encodeURI : false,
- encodeURIComponent : false,
- Error : false,
- 'eval' : false,
- EvalError : false,
- Function : false,
- hasOwnProperty : false,
- isFinite : false,
- isNaN : false,
- JSON : false,
- Math : false,
- Number : false,
- Object : false,
- parseInt : false,
- parseFloat : false,
- RangeError : false,
- ReferenceError : false,
- RegExp : false,
- String : false,
- SyntaxError : false,
- TypeError : false,
- URIError : false
- },
-
- standard_member = {
- E : true,
- LN2 : true,
- LN10 : true,
- LOG2E : true,
- LOG10E : true,
- PI : true,
- SQRT1_2 : true,
- SQRT2 : true,
- MAX_VALUE : true,
- MIN_VALUE : true,
- NEGATIVE_INFINITY : true,
- POSITIVE_INFINITY : true
- },
-
- strict_mode,
- syntax = {},
- tab,
- token,
- urls,
- warnings,
-
-// widget contains the global names which are provided to a Yahoo
-// (fna Konfabulator) widget.
-
- widget = {
- alert : true,
- animator : true,
- appleScript : true,
- beep : true,
- bytesToUIString : true,
- Canvas : true,
- chooseColor : true,
- chooseFile : true,
- chooseFolder : true,
- closeWidget : true,
- COM : true,
- convertPathToHFS : true,
- convertPathToPlatform : true,
- CustomAnimation : true,
- escape : true,
- FadeAnimation : true,
- filesystem : true,
- Flash : true,
- focusWidget : true,
- form : true,
- FormField : true,
- Frame : true,
- HotKey : true,
- Image : true,
- include : true,
- isApplicationRunning : true,
- iTunes : true,
- konfabulatorVersion : true,
- log : true,
- md5 : true,
- MenuItem : true,
- MoveAnimation : true,
- openURL : true,
- play : true,
- Point : true,
- popupMenu : true,
- preferenceGroups : true,
- preferences : true,
- print : true,
- prompt : true,
- random : true,
- Rectangle : true,
- reloadWidget : true,
- ResizeAnimation : true,
- resolvePath : true,
- resumeUpdates : true,
- RotateAnimation : true,
- runCommand : true,
- runCommandInBg : true,
- saveAs : true,
- savePreferences : true,
- screen : true,
- ScrollBar : true,
- showWidgetPreferences : true,
- sleep : true,
- speak : true,
- Style : true,
- suppressUpdates : true,
- system : true,
- tellWidget : true,
- Text : true,
- TextArea : true,
- Timer : true,
- unescape : true,
- updateNow : true,
- URL : true,
- Web : true,
- widget : true,
- Window : true,
- XMLDOM : true,
- XMLHttpRequest : true,
- yahooCheckLogin : true,
- yahooLogin : true,
- yahooLogout : true
- },
-
-// xmode is used to adapt to the exceptions in html parsing.
-// It can have these states:
-// false .js script file
-// html
-// outer
-// script
-// style
-// scriptstring
-// styleproperty
-
- xmode,
- xquote,
-
-// unsafe comment or string
- ax = /@cc|<\/?|script|\]*s\]|<\s*!|</i,
-// unsafe characters that are silently deleted by one or more browsers
- cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
-// token
- tx = /^\s*([(){}\[.,:;'"~\?\]#@]|==?=?|\/(\*(jslint|members?|global)?|=|\/)?|\*[\/=]?|\+[+=]?|-[\-=]?|%=?|&[&=]?|\|[|=]?|>>?>?=?|<([\/=!]|\!(\[|--)?|<=?)?|\^=?|\!=?=?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+([xX][0-9a-fA-F]+|\.[0-9]*)?([eE][+\-]?[0-9]+)?)/,
-// html token
-//////// hx = /^\s*(['"=>\/&#]|<(?:\/|\!(?:--)?)?|[a-zA-Z][a-zA-Z0-9_\-]*|[0-9]+|--|.)/,
- hx = /^\s*(['"=>\/&#]|<(?:\/|\!(?:--)?)?|[a-zA-Z][a-zA-Z0-9_\-]*|[0-9]+|--)/,
-// characters in strings that need escapement
- nx = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
- nxg = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
-// outer html token
- ox = /[>&]|<[\/!]?|--/,
-// star slash
- lx = /\*\/|\/\*/,
-// identifier
- ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/,
-// javascript url
- jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i,
-// url badness
- ux = /&|\+|\u00AD|\.\.|\/\*|%[^;]|base64|url|expression|data|mailto/i,
-// style
- sx = /^\s*([{:#%.=,>+\[\]@()"';]|\*=?|\$=|\|=|\^=|~=|[a-zA-Z_][a-zA-Z0-9_\-]*|[0-9]+|<\/|\/\*)/,
- ssx = /^\s*([@#!"'};:\-%.=,+\[\]()*_]|[a-zA-Z][a-zA-Z0-9._\-]*|\/\*?|\d+(?:\.\d+)?|<\/)/,
-// attributes characters
- qx = /[^a-zA-Z0-9-_\/ ]/,
-// query characters for ids
- dx = /[\[\]\/\\"'*<>.&:(){}+=#]/,
-
- rx = {
- outer: hx,
- html: hx,
- style: sx,
- styleproperty: ssx
- };
-
- function F() {}
-
- if (typeof Object.create !== 'function') {
- Object.create = function (o) {
- F.prototype = o;
- return new F();
- };
- }
-
-
- function is_own(object, name) {
- return Object.prototype.hasOwnProperty.call(object, name);
- }
-
-
- function combine(t, o) {
- var n;
- for (n in o) {
- if (is_own(o, n)) {
- t[n] = o[n];
- }
- }
- }
-
- String.prototype.entityify = function () {
- return this.
- replace(/&/g, '&').
- replace(/</g, '<').
- replace(/>/g, '>');
- };
-
- String.prototype.isAlpha = function () {
- return (this >= 'a' && this <= 'z\uffff') ||
- (this >= 'A' && this <= 'Z\uffff');
- };
-
-
- String.prototype.isDigit = function () {
- return (this >= '0' && this <= '9');
- };
-
-
- String.prototype.supplant = function (o) {
- return this.replace(/\{([^{}]*)\}/g, function (a, b) {
- var r = o[b];
- return typeof r === 'string' || typeof r === 'number' ? r : a;
- });
- };
-
- String.prototype.name = function () {
-
-// If the string looks like an identifier, then we can return it as is.
-// If the string contains no control characters, no quote characters, and no
-// backslash characters, then we can simply slap some quotes around it.
-// Otherwise we must also replace the offending characters with safe
-// sequences.
-
- if (ix.test(this)) {
- return this;
- }
- if (nx.test(this)) {
- return '"' + this.replace(nxg, function (a) {
- var c = escapes[a];
- if (c) {
- return c;
- }
- return '\\u' + ('0000' + a.charCodeAt().toString(16)).slice(-4);
- }) + '"';
- }
- return '"' + this + '"';
- };
-
-
- function assume() {
- if (!option.safe) {
- if (option.rhino) {
- combine(predefined, rhino);
- }
- if (option.devel) {
- combine(predefined, devel);
- }
- if (option.browser || option.sidebar) {
- combine(predefined, browser);
- }
- if (option.sidebar) {
- combine(predefined, sidebar);
- }
- if (option.widget) {
- combine(predefined, widget);
- }
- }
- }
-
-
-// Produce an error warning.
-
- function quit(m, l, ch) {
- throw {
- name: 'JSLintError',
- line: l,
- character: ch,
- message: m + " (" + Math.floor((l / lines.length) * 100) +
- "% scanned)."
- };
- }
-
- function warning(m, t, a, b, c, d) {
- var ch, l, w;
- t = t || nexttoken;
- if (t.id === '(end)') { // `~
- t = token;
- }
- l = t.line || 0;
- ch = t.from || 0;
- w = {
- id: '(error)',
- raw: m,
- evidence: lines[l - 1] || '',
- line: l,
- character: ch,
- a: a,
- b: b,
- c: c,
- d: d
- };
- w.reason = m.supplant(w);
- JSLINT.errors.push(w);
- if (option.passfail) {
- quit('Stopping. ', l, ch);
- }
- warnings += 1;
- if (warnings >= option.maxerr) {
- quit("Too many errors.", l, ch);
- }
- return w;
- }
-
- function warningAt(m, l, ch, a, b, c, d) {
- return warning(m, {
- line: l,
- from: ch
- }, a, b, c, d);
- }
-
- function error(m, t, a, b, c, d) {
- var w = warning(m, t, a, b, c, d);
- quit("Stopping, unable to continue.", w.line, w.character);
- }
-
- function errorAt(m, l, ch, a, b, c, d) {
- return error(m, {
- line: l,
- from: ch
- }, a, b, c, d);
- }
-
-
-
-// lexical analysis
-
- var lex = (function lex() {
- var character, from, line, s;
-
-// Private lex methods
-
- function nextLine() {
- var at;
- if (line >= lines.length) {
- return false;
- }
- character = 1;
- s = lines[line];
- line += 1;
- at = s.search(/ \t/);
- if (at >= 0) {
- warningAt("Mixed spaces and tabs.", line, at + 1);
- }
- s = s.replace(/\t/g, tab);
- at = s.search(cx);
- if (at >= 0) {
- warningAt("Unsafe character.", line, at);
- }
- if (option.maxlen && option.maxlen < s.length) {
- warningAt("Line too long.", line, s.length);
- }
- return true;
- }
-
-// Produce a token object. The token inherits from a syntax symbol.
-
- function it(type, value) {
- var i, t;
- if (type === '(color)') {
- t = {type: type};
- } else if (type === '(punctuator)' ||
- (type === '(identifier)' && is_own(syntax, value))) {
- t = syntax[value] || syntax['(error)'];
- } else {
- t = syntax[type];
- }
- t = Object.create(t);
- if (type === '(string)' || type === '(range)') {
- if (jx.test(value)) {
- warningAt("Script URL.", line, from);
- }
- }
- if (type === '(identifier)') {
- t.identifier = true;
- if (value === '__iterator__' || value === '__proto__') {
- errorAt("Reserved name '{a}'.",
- line, from, value);
- } else if (option.nomen &&
- (value.charAt(0) === '_' ||
- value.charAt(value.length - 1) === '_')) {
- warningAt("Unexpected {a} in '{b}'.", line, from,
- "dangling '_'", value);
- }
- }
- t.value = value;
- t.line = line;
- t.character = character;
- t.from = from;
- i = t.id;
- if (i !== '(endline)') {
- prereg = i &&
- (('(,=:[!&|?{};'.indexOf(i.charAt(i.length - 1)) >= 0) ||
- i === 'return');
- }
- return t;
- }
-
-// Public lex methods
-
- return {
- init: function (source) {
- if (typeof source === 'string') {
- lines = source.
- replace(/\r\n/g, '\n').
- replace(/\r/g, '\n').
- split('\n');
- } else {
- lines = source;
- }
- line = 0;
- nextLine();
- from = 1;
- },
-
- range: function (begin, end) {
- var c, value = '';
- from = character;
- if (s.charAt(0) !== begin) {
- errorAt("Expected '{a}' and instead saw '{b}'.",
- line, character, begin, s.charAt(0));
- }
- for (;;) {
- s = s.slice(1);
- character += 1;
- c = s.charAt(0);
- switch (c) {
- case '':
- errorAt("Missing '{a}'.", line, character, c);
- break;
- case end:
- s = s.slice(1);
- character += 1;
- return it('(range)', value);
- case xquote:
- case '\\':
- warningAt("Unexpected '{a}'.", line, character, c);
- }
- value += c;
- }
-
- },
-
-// token -- this is called by advance to get the next token.
-
- token: function () {
- var b, c, captures, d, depth, high, i, l, low, q, t;
-
- function match(x) {
- var r = x.exec(s), r1;
- if (r) {
- l = r[0].length;
- r1 = r[1];
- c = r1.charAt(0);
- s = s.substr(l);
- from = character + l - r1.length;
- character += l;
- return r1;
- }
- }
-
- function string(x) {
- var c, j, r = '';
-
- if (jsonmode && x !== '"') {
- warningAt("Strings must use doublequote.",
- line, character);
- }
-
- if (xquote === x || (xmode === 'scriptstring' && !xquote)) {
- return it('(punctuator)', x);
- }
-
- function esc(n) {
- var i = parseInt(s.substr(j + 1, n), 16);
- j += n;
- if (i >= 32 && i <= 126 &&
- i !== 34 && i !== 92 && i !== 39) {
- warningAt("Unnecessary escapement.", line, character);
- }
- character += n;
- c = String.fromCharCode(i);
- }
- j = 0;
- for (;;) {
- while (j >= s.length) {
- j = 0;
- if (xmode !== 'html' || !nextLine()) {
- errorAt("Unclosed string.", line, from);
- }
- }
- c = s.charAt(j);
- if (c === x) {
- character += 1;
- s = s.substr(j + 1);
- return it('(string)', r, x);
- }
- if (c < ' ') {
- if (c === '\n' || c === '\r') {
- break;
- }
- warningAt("Control character in string: {a}.",
- line, character + j, s.slice(0, j));
- } else if (c === xquote) {
- warningAt("Bad HTML string", line, character + j);
- } else if (c === '<') {
- if (option.safe && xmode === 'html') {
- warningAt("ADsafe string violation.",
- line, character + j);
- } else if (s.charAt(j + 1) === '/' && (xmode || option.safe)) {
- warningAt("Expected '<\\/' and instead saw '</'.", line, character);
- } else if (s.charAt(j + 1) === '!' && (xmode || option.safe)) {
- warningAt("Unexpected '<!' in a string.", line, character);
- }
- } else if (c === '\\') {
- if (xmode === 'html') {
- if (option.safe) {
- warningAt("ADsafe string violation.",
- line, character + j);
- }
- } else if (xmode === 'styleproperty') {
- j += 1;
- character += 1;
- c = s.charAt(j);
- if (c !== x) {
- warningAt("Escapement in style string.",
- line, character + j);
- }
- } else {
- j += 1;
- character += 1;
- c = s.charAt(j);
- switch (c) {
- case xquote:
- warningAt("Bad HTML string", line,
- character + j);
- break;
- case '\\':
- case '\'':
- case '"':
- case '/':
- break;
- case 'b':
- c = '\b';
- break;
- case 'f':
- c = '\f';
- break;
- case 'n':
- c = '\n';
- break;
- case 'r':
- c = '\r';
- break;
- case 't':
- c = '\t';
- break;
- case 'u':
- esc(4);
- break;
- case 'v':
- c = '\v';
- break;
- case 'x':
- if (jsonmode) {
- warningAt("Avoid \\x-.", line, character);
- }
- esc(2);
- break;
- default:
- warningAt("Bad escapement.", line, character);
- }
- }
- }
- r += c;
- character += 1;
- j += 1;
- }
- }
-
- for (;;) {
- if (!s) {
- return it(nextLine() ? '(endline)' : '(end)', '');
- }
- while (xmode === 'outer') {
- i = s.search(ox);
- if (i === 0) {
- break;
- } else if (i > 0) {
- character += 1;
- s = s.slice(i);
- break;
- } else {
- if (!nextLine()) {
- return it('(end)', '');
- }
- }
- }
-// t = match(rx[xmode] || tx);
-// if (!t) {
-// if (xmode === 'html') {
-// return it('(error)', s.charAt(0));
-// } else {
-// t = '';
-// c = '';
-// while (s && s < '!') {
-// s = s.substr(1);
-// }
-// if (s) {
-// errorAt("Unexpected '{a}'.",
-// line, character, s.substr(0, 1));
-// }
-// }
- t = match(rx[xmode] || tx);
- if (!t) {
- t = '';
- c = '';
- while (s && s < '!') {
- s = s.substr(1);
- }
- if (s) {
- if (xmode === 'html') {
- return it('(error)', s.charAt(0));
- } else {
- errorAt("Unexpected '{a}'.",
- line, character, s.substr(0, 1));
- }
- }
- } else {
-
- // identifier
-
- if (c.isAlpha() || c === '_' || c === '$') {
- return it('(identifier)', t);
- }
-
- // number
-
- if (c.isDigit()) {
- if (xmode !== 'style' && !isFinite(Number(t))) {
- warningAt("Bad number '{a}'.",
- line, character, t);
- }
- if (xmode !== 'style' &&
- xmode !== 'styleproperty' &&
- s.substr(0, 1).isAlpha()) {
- warningAt("Missing space after '{a}'.",
- line, character, t);
- }
- if (c === '0') {
- d = t.substr(1, 1);
- if (d.isDigit()) {
- if (token.id !== '.' && xmode !== 'styleproperty') {
- warningAt("Don't use extra leading zeros '{a}'.",
- line, character, t);
- }
- } else if (jsonmode && (d === 'x' || d === 'X')) {
- warningAt("Avoid 0x-. '{a}'.",
- line, character, t);
- }
- }
- if (t.substr(t.length - 1) === '.') {
- warningAt(
- "A trailing decimal point can be confused with a dot '{a}'.",
- line, character, t);
- }
- return it('(number)', t);
- }
- switch (t) {
-
- // string
-
- case '"':
- case "'":
- return string(t);
-
- // // comment
-
- case '//':
- if (src || (xmode && xmode !== 'script')) {
- warningAt("Unexpected comment.", line, character);
- } else if (xmode === 'script' && /<\s*\//i.test(s)) {
- warningAt("Unexpected <\/ in comment.", line, character);
- } else if ((option.safe || xmode === 'script') && ax.test(s)) {
- warningAt("Dangerous comment.", line, character);
- }
- s = '';
- token.comment = true;
- break;
-
- // /* comment
-
- case '/*':
- if (src || (xmode && xmode !== 'script' && xmode !== 'style' && xmode !== 'styleproperty')) {
- warningAt("Unexpected comment.", line, character);
- }
- if (option.safe && ax.test(s)) {
- warningAt("ADsafe comment violation.", line, character);
- }
- for (;;) {
- i = s.search(lx);
- if (i >= 0) {
- break;
- }
- if (!nextLine()) {
- errorAt("Unclosed comment.", line, character);
- } else {
- if (option.safe && ax.test(s)) {
- warningAt("ADsafe comment violation.", line, character);
- }
- }
- }
- character += i + 2;
- if (s.substr(i, 1) === '/') {
- errorAt("Nested comment.", line, character);
- }
- s = s.substr(i + 2);
- token.comment = true;
- break;
-
- // /*members /*jslint /*global
-
- case '/*members':
- case '/*member':
- case '/*jslint':
- case '/*global':
- case '*/':
- return {
- value: t,
- type: 'special',
- line: line,
- character: character,
- from: from
- };
-
- case '':
- break;
- // /
- case '/':
- if (token.id === '/=') {
- errorAt(
-"A regular expression literal can be confused with '/='.", line, from);
- }
- if (prereg) {
- depth = 0;
- captures = 0;
- l = 0;
- for (;;) {
- b = true;
- c = s.charAt(l);
- l += 1;
- switch (c) {
- case '':
- errorAt("Unclosed regular expression.", line, from);
- return;
- case '/':
- if (depth > 0) {
- warningAt("Unescaped '{a}'.", line, from + l, '/');
- }
- c = s.substr(0, l - 1);
- q = {
- g: true,
- i: true,
- m: true
- };
- while (q[s.charAt(l)] === true) {
- q[s.charAt(l)] = false;
- l += 1;
- }
- character += l;
- s = s.substr(l);
- q = s.charAt(0);
- if (q === '/' || q === '*') {
- errorAt("Confusing regular expression.", line, from);
- }
- return it('(regexp)', c);
- case '\\':
- c = s.charAt(l);
- if (c < ' ') {
- warningAt("Unexpected control character in regular expression.", line, from + l);
- } else if (c === '<') {
- warningAt("Unexpected escaped character '{a}' in regular expression.", line, from + l, c);
- }
- l += 1;
- break;
- case '(':
- depth += 1;
- b = false;
- if (s.charAt(l) === '?') {
- l += 1;
- switch (s.charAt(l)) {
- case ':':
- case '=':
- case '!':
- l += 1;
- break;
- default:
- warningAt("Expected '{a}' and instead saw '{b}'.", line, from + l, ':', s.charAt(l));
- }
- } else {
- captures += 1;
- }
- break;
- case '|':
- b = false;
- break;
- case ')':
- if (depth === 0) {
- warningAt("Unescaped '{a}'.", line, from + l, ')');
- } else {
- depth -= 1;
- }
- break;
- case ' ':
- q = 1;
- while (s.charAt(l) === ' ') {
- l += 1;
- q += 1;
- }
- if (q > 1) {
- warningAt("Spaces are hard to count. Use {{a}}.", line, from + l, q);
- }
- break;
- case '[':
- c = s.charAt(l);
- if (c === '^') {
- l += 1;
- if (option.regexp) {
- warningAt("Insecure '{a}'.", line, from + l, c);
- }
- }
- q = false;
- if (c === ']') {
- warningAt("Empty class.", line, from + l - 1);
- q = true;
- }
- klass: do {
- c = s.charAt(l);
- l += 1;
- switch (c) {
- case '[':
- case '^':
- warningAt("Unescaped '{a}'.", line, from + l, c);
- q = true;
- break;
- case '-':
- if (q) {
- q = false;
- } else {
- warningAt("Unescaped '{a}'.", line, from + l, '-');
- q = true;
- }
- break;
- case ']':
- if (!q) {
- warningAt("Unescaped '{a}'.", line, from + l - 1, '-');
- }
- break klass;
- case '\\':
- c = s.charAt(l);
- if (c < ' ') {
- warningAt("Unexpected control character in regular expression.", line, from + l);
- } else if (c === '<') {
- warningAt("Unexpected escaped character '{a}' in regular expression.", line, from + l, c);
- }
- l += 1;
- q = true;
- break;
- case '/':
- warningAt("Unescaped '{a}'.", line, from + l - 1, '/');
- q = true;
- break;
- case '<':
- if (xmode === 'script') {
- c = s.charAt(l);
- if (c === '!' || c === '/') {
- warningAt("HTML confusion in regular expression '<{a}'.", line, from + l, c);
- }
- }
- q = true;
- break;
- default:
- q = true;
- }
- } while (c);
- break;
- case '.':
- if (option.regexp) {
- warningAt("Insecure '{a}'.", line, from + l, c);
- }
- break;
- case ']':
- case '?':
- case '{':
- case '}':
- case '+':
- case '*':
- warningAt("Unescaped '{a}'.", line, from + l, c);
- break;
- case '<':
- if (xmode === 'script') {
- c = s.charAt(l);
- if (c === '!' || c === '/') {
- warningAt("HTML confusion in regular expression '<{a}'.", line, from + l, c);
- }
- }
- }
- if (b) {
- switch (s.charAt(l)) {
- case '?':
- case '+':
- case '*':
- l += 1;
- if (s.charAt(l) === '?') {
- l += 1;
- }
- break;
- case '{':
- l += 1;
- c = s.charAt(l);
- if (c < '0' || c > '9') {
- warningAt("Expected a number and instead saw '{a}'.", line, from + l, c);
- }
- l += 1;
- low = +c;
- for (;;) {
- c = s.charAt(l);
- if (c < '0' || c > '9') {
- break;
- }
- l += 1;
- low = +c + (low * 10);
- }
- high = low;
- if (c === ',') {
- l += 1;
- high = Infinity;
- c = s.charAt(l);
- if (c >= '0' && c <= '9') {
- l += 1;
- high = +c;
- for (;;) {
- c = s.charAt(l);
- if (c < '0' || c > '9') {
- break;
- }
- l += 1;
- high = +c + (high * 10);
- }
- }
- }
- if (s.charAt(l) !== '}') {
- warningAt("Expected '{a}' and instead saw '{b}'.", line, from + l, '}', c);
- } else {
- l += 1;
- }
- if (s.charAt(l) === '?') {
- l += 1;
- }
- if (low > high) {
- warningAt("'{a}' should not be greater than '{b}'.", line, from + l, low, high);
- }
- }
- }
- }
- c = s.substr(0, l - 1);
- character += l;
- s = s.substr(l);
- return it('(regexp)', c);
- }
- return it('(punctuator)', t);
-
- // punctuator
-
- case '<!--':
- l = line;
- c = character;
- for (;;) {
- i = s.indexOf('--');
- if (i >= 0) {
- break;
- }
- i = s.indexOf('<!');
- if (i >= 0) {
- errorAt("Nested HTML comment.",
- line, character + i);
- }
- if (!nextLine()) {
- errorAt("Unclosed HTML comment.", l, c);
- }
- }
- l = s.indexOf('<!');
- if (l >= 0 && l < i) {
- errorAt("Nested HTML comment.",
- line, character + l);
- }
- character += i;
- if (s[i + 2] !== '>') {
- errorAt("Expected -->.", line, character);
- }
- character += 3;
- s = s.slice(i + 3);
- break;
- case '#':
- if (xmode === 'html' || xmode === 'styleproperty') {
- for (;;) {
- c = s.charAt(0);
- if ((c < '0' || c > '9') &&
- (c < 'a' || c > 'f') &&
- (c < 'A' || c > 'F')) {
- break;
- }
- character += 1;
- s = s.substr(1);
- t += c;
- }
- if (t.length !== 4 && t.length !== 7) {
- warningAt("Bad hex color '{a}'.", line,
- from + l, t);
- }
- return it('(color)', t);
- }
- return it('(punctuator)', t);
- default:
- if (xmode === 'outer' && c === '&') {
- character += 1;
- s = s.substr(1);
- for (;;) {
- c = s.charAt(0);
- character += 1;
- s = s.substr(1);
- if (c === ';') {
- break;
- }
- if (!((c >= '0' && c <= '9') ||
- (c >= 'a' && c <= 'z') ||
- c === '#')) {
- errorAt("Bad entity", line, from + l,
- character);
- }
- }
- break;
- }
- return it('(punctuator)', t);
- }
- }
- }
- }
- };
- }());
-
-
- function addlabel(t, type) {
-
- if (option.safe && funct['(global)'] && typeof predefined[t] !== 'boolean') {
- warning('ADsafe global: ' + t + '.', token);
- } else if (t === 'hasOwnProperty') {
- warning("'hasOwnProperty' is a really bad name.");
- }
-
-// Define t in the current function in the current scope.
-
- if (is_own(funct, t) && !funct['(global)']) {
- warning(funct[t] === true ?
- "'{a}' was used before it was defined." :
- "'{a}' is already defined.",
- nexttoken, t);
- }
- funct[t] = type;
- if (funct['(global)']) {
- global[t] = funct;
- if (is_own(implied, t)) {
- warning("'{a}' was used before it was defined.", nexttoken, t);
- delete implied[t];
- }
- } else {
- scope[t] = funct;
- }
- }
-
-
- function doOption() {
- var b, obj, filter, o = nexttoken.value, t, v;
- switch (o) {
- case '*/':
- error("Unbegun comment.");
- break;
- case '/*members':
- case '/*member':
- o = '/*members';
- if (!membersOnly) {
- membersOnly = {};
- }
- obj = membersOnly;
- break;
- case '/*jslint':
- if (option.safe) {
- warning("ADsafe restriction.");
- }
- obj = option;
- filter = boolOptions;
- break;
- case '/*global':
- if (option.safe) {
- warning("ADsafe restriction.");
- }
- obj = predefined;
- break;
- default:
- }
- t = lex.token();
-loop: for (;;) {
- for (;;) {
- if (t.type === 'special' && t.value === '*/') {
- break loop;
- }
- if (t.id !== '(endline)' && t.id !== ',') {
- break;
- }
- t = lex.token();
- }
- if (t.type !== '(string)' && t.type !== '(identifier)' &&
- o !== '/*members') {
- error("Bad option.", t);
- }
- v = lex.token();
- if (v.id === ':') {
- v = lex.token();
- if (obj === membersOnly) {
- error("Expected '{a}' and instead saw '{b}'.",
- t, '*/', ':');
- }
- if (t.value === 'indent' && o === '/*jslint') {
- b = +v.value;
- if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
- Math.floor(b) !== b) {
- error("Expected a small integer and instead saw '{a}'.",
- v, v.value);
- }
- obj.white = true;
- obj.indent = b;
- } else if (t.value === 'maxerr' && o === '/*jslint') {
- b = +v.value;
- if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
- Math.floor(b) !== b) {
- error("Expected a small integer and instead saw '{a}'.",
- v, v.value);
- }
- obj.maxerr = b;
- } else if (t.value === 'maxlen' && o === '/*jslint') {
- b = +v.value;
- if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
- Math.floor(b) !== b) {
- error("Expected a small integer and instead saw '{a}'.",
- v, v.value);
- }
- obj.maxlen = b;
- } else if (v.value === 'true') {
- obj[t.value] = true;
- } else if (v.value === 'false') {
- obj[t.value] = false;
- } else {
- error("Bad option value.", v);
- }
- t = lex.token();
- } else {
- if (o === '/*jslint') {
- error("Missing option value.", t);
- }
- obj[t.value] = false;
- t = v;
- }
- }
- if (filter) {
- assume();
- }
- }
-
-
-// We need a peek function. If it has an argument, it peeks that much farther
-// ahead. It is used to distinguish
-// for ( var i in ...
-// from
-// for ( var i = ...
-
- function peek(p) {
- var i = p || 0, j = 0, t;
-
- while (j <= i) {
- t = lookahead[j];
- if (!t) {
- t = lookahead[j] = lex.token();
- }
- j += 1;
- }
- return t;
- }
-
-
-
-// Produce the next token. It looks for programming errors.
-
- function advance(id, t) {
- switch (token.id) {
- case '(number)':
- if (nexttoken.id === '.') {
- warning(
-"A dot following a number can be confused with a decimal point.", token);
- }
- break;
- case '-':
- if (nexttoken.id === '-' || nexttoken.id === '--') {
- warning("Confusing minusses.");
- }
- break;
- case '+':
- if (nexttoken.id === '+' || nexttoken.id === '++') {
- warning("Confusing plusses.");
- }
- break;
- }
- if (token.type === '(string)' || token.identifier) {
- anonname = token.value;
- }
-
- if (id && nexttoken.id !== id) {
- if (t) {
- if (nexttoken.id === '(end)') {
- warning("Unmatched '{a}'.", t, t.id);
- } else {
- warning("Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.",
- nexttoken, id, t.id, t.line, nexttoken.value);
- }
- } else if (nexttoken.type !== '(identifier)' ||
- nexttoken.value !== id) {
- warning("Expected '{a}' and instead saw '{b}'.",
- nexttoken, id, nexttoken.value);
- }
- }
- prevtoken = token;
- token = nexttoken;
- for (;;) {
- nexttoken = lookahead.shift() || lex.token();
- if (nexttoken.id === '(end)' || nexttoken.id === '(error)') {
- return;
- }
- if (nexttoken.type === 'special') {
- doOption();
- } else {
- if (nexttoken.id !== '(endline)') {
- break;
- }
- }
- }
- }
-
-
-// This is the heart of JSLINT, the Pratt parser. In addition to parsing, it
-// is looking for ad hoc lint patterns. We add to Pratt's model .fud, which is
-// like nud except that it is only used on the first token of a statement.
-// Having .fud makes it much easier to define JavaScript. I retained Pratt's
-// nomenclature.
-
-// .nud Null denotation
-// .fud First null denotation
-// .led Left denotation
-// lbp Left binding power
-// rbp Right binding power
-
-// They are key to the parsing method called Top Down Operator Precedence.
-
- function parse(rbp, initial) {
- var left;
- if (nexttoken.id === '(end)') {
- error("Unexpected early end of program.", token);
- }
- advance();
- if (option.safe && typeof predefined[token.value] === 'boolean' &&
- (nexttoken.id !== '(' && nexttoken.id !== '.')) {
- warning('ADsafe violation.', token);
- }
- if (initial) {
- anonname = 'anonymous';
- funct['(verb)'] = token.value;
- }
- if (initial === true && token.fud) {
- left = token.fud();
- } else {
- if (token.nud) {
- left = token.nud();
- } else {
- if (nexttoken.type === '(number)' && token.id === '.') {
- warning(
-"A leading decimal point can be confused with a dot: '.{a}'.",
- token, nexttoken.value);
- advance();
- return token;
- } else {
- error("Expected an identifier and instead saw '{a}'.",
- token, token.id);
- }
- }
- while (rbp < nexttoken.lbp) {
- advance();
- if (token.led) {
- left = token.led(left);
- } else {
- error("Expected an operator and instead saw '{a}'.",
- token, token.id);
- }
- }
- }
- return left;
- }
-
-
-// Functions for conformance of style.
-
- function adjacent(left, right) {
- left = left || token;
- right = right || nexttoken;
- if (option.white || xmode === 'styleproperty' || xmode === 'style') {
- if (left.character !== right.from && left.line === right.line) {
- warning("Unexpected space after '{a}'.", right, left.value);
- }
- }
- }
-
- function nospace(left, right) {
- left = left || token;
- right = right || nexttoken;
- if (option.white && !left.comment) {
- if (left.line === right.line) {
- adjacent(left, right);
- }
- }
- }
-
-
- function nonadjacent(left, right) {
- if (option.white) {
- left = left || token;
- right = right || nexttoken;
- if (left.line === right.line && left.character === right.from) {
- warning("Missing space after '{a}'.",
- nexttoken, left.value);
- }
- }
- }
-
- function nobreaknonadjacent(left, right) {
- left = left || token;
- right = right || nexttoken;
- if (!option.laxbreak && left.line !== right.line) {
- warning("Bad line breaking before '{a}'.", right, right.id);
- } else if (option.white) {
- left = left || token;
- right = right || nexttoken;
- if (left.character === right.from) {
- warning("Missing space after '{a}'.",
- nexttoken, left.value);
- }
- }
- }
-
- function indentation(bias) {
- var i;
- if (option.white && nexttoken.id !== '(end)') {
- i = indent + (bias || 0);
- if (nexttoken.from !== i) {
- warning("Expected '{a}' to have an indentation at {b} instead at {c}.",
- nexttoken, nexttoken.value, i, nexttoken.from);
- }
- }
- }
-
- function nolinebreak(t) {
- t = t || token;
- if (t.line !== nexttoken.line) {
- warning("Line breaking error '{a}'.", t, t.value);
- }
- }
-
-
- function comma() {
- if (token.line !== nexttoken.line) {
- if (!option.laxbreak) {
- warning("Bad line breaking before '{a}'.", token, nexttoken.id);
- }
- } else if (token.character !== nexttoken.from && option.white) {
- warning("Unexpected space after '{a}'.", nexttoken, token.value);
- }
- advance(',');
- nonadjacent(token, nexttoken);
- }
-
-
-// Functional constructors for making the symbols that will be inherited by
-// tokens.
-
- function symbol(s, p) {
- var x = syntax[s];
- if (!x || typeof x !== 'object') {
- syntax[s] = x = {
- id: s,
- lbp: p,
- value: s
- };
- }
- return x;
- }
-
-
- function delim(s) {
- return symbol(s, 0);
- }
-
-
- function stmt(s, f) {
- var x = delim(s);
- x.identifier = x.reserved = true;
- x.fud = f;
- return x;
- }
-
-
- function blockstmt(s, f) {
- var x = stmt(s, f);
- x.block = true;
- return x;
- }
-
-
- function reserveName(x) {
- var c = x.id.charAt(0);
- if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
- x.identifier = x.reserved = true;
- }
- return x;
- }
-
-
- function prefix(s, f) {
- var x = symbol(s, 150);
- reserveName(x);
- x.nud = (typeof f === 'function') ? f : function () {
- this.right = parse(150);
- this.arity = 'unary';
- if (this.id === '++' || this.id === '--') {
- if (option.plusplus) {
- warning("Unexpected use of '{a}'.", this, this.id);
- } else if ((!this.right.identifier || this.right.reserved) &&
- this.right.id !== '.' && this.right.id !== '[') {
- warning("Bad operand.", this);
- }
- }
- return this;
- };
- return x;
- }
-
-
- function type(s, f) {
- var x = delim(s);
- x.type = s;
- x.nud = f;
- return x;
- }
-
-
- function reserve(s, f) {
- var x = type(s, f);
- x.identifier = x.reserved = true;
- return x;
- }
-
-
- function reservevar(s, v) {
- return reserve(s, function () {
- if (this.id === 'this' || this.id === 'arguments') {
- if (strict_mode && funct['(global)']) {
- warning("Strict violation.", this);
- } else if (option.safe) {
- warning("ADsafe violation.", this);
- }
- }
- return this;
- });
- }
-
-
- function infix(s, f, p, w) {
- var x = symbol(s, p);
- reserveName(x);
- x.led = function (left) {
- if (!w) {
- nobreaknonadjacent(prevtoken, token);
- nonadjacent(token, nexttoken);
- }
- if (typeof f === 'function') {
- return f(left, this);
- } else {
- this.left = left;
- this.right = parse(p);
- return this;
- }
- };
- return x;
- }
-
-
- function relation(s, f) {
- var x = symbol(s, 100);
- x.led = function (left) {
- nobreaknonadjacent(prevtoken, token);
- nonadjacent(token, nexttoken);
- var right = parse(100);
- if ((left && left.id === 'NaN') || (right && right.id === 'NaN')) {
- warning("Use the isNaN function to compare with NaN.", this);
- } else if (f) {
- f.apply(this, [left, right]);
- }
- if (left.id === '!') {
- warning("Confusing use of '{a}'.", left, '!');
- }
- if (right.id === '!') {
- warning("Confusing use of '{a}'.", left, '!');
- }
- this.left = left;
- this.right = right;
- return this;
- };
- return x;
- }
-
-
- function isPoorRelation(node) {
- return node &&
- ((node.type === '(number)' && +node.value === 0) ||
- (node.type === '(string)' && node.value === ' ') ||
- node.type === 'true' ||
- node.type === 'false' ||
- node.type === 'undefined' ||
- node.type === 'null');
- }
-
-
- function assignop(s, f) {
- symbol(s, 20).exps = true;
- return infix(s, function (left, that) {
- var l;
- that.left = left;
- if (predefined[left.value] === false &&
- scope[left.value]['(global)'] === true) {
- warning('Read only.', left);
- }
- if (option.safe) {
- l = left;
- do {
- if (typeof predefined[l.value] === 'boolean') {
- warning('ADsafe violation.', l);
- }
- l = l.left;
- } while (l);
- }
- if (left) {
- if (left.id === '.' || left.id === '[') {
- if (!left.left || left.left.value === 'arguments') {
- warning('Bad assignment.', that);
- }
- that.right = parse(19);
- return that;
- } else if (left.identifier && !left.reserved) {
- if (funct[left.value] === 'exception') {
- warning("Do not assign to the exception parameter.", left);
- }
- that.right = parse(19);
- return that;
- }
- if (left === syntax['function']) {
- warning(
-"Expected an identifier in an assignment and instead saw a function invocation.",
- token);
- }
- }
- error("Bad assignment.", that);
- }, 20);
- }
-
- function bitwise(s, f, p) {
- var x = symbol(s, p);
- reserveName(x);
- x.led = (typeof f === 'function') ? f : function (left) {
- if (option.bitwise) {
- warning("Unexpected use of '{a}'.", this, this.id);
- }
- this.left = left;
- this.right = parse(p);
- return this;
- };
- return x;
- }
-
- function bitwiseassignop(s) {
- symbol(s, 20).exps = true;
- return infix(s, function (left, that) {
- if (option.bitwise) {
- warning("Unexpected use of '{a}'.", that, that.id);
- }
- nonadjacent(prevtoken, token);
- nonadjacent(token, nexttoken);
- if (left) {
- if (left.id === '.' || left.id === '[' ||
- (left.identifier && !left.reserved)) {
- parse(19);
- return that;
- }
- if (left === syntax['function']) {
- warning(
-"Expected an identifier in an assignment, and instead saw a function invocation.",
- token);
- }
- return that;
- }
- error("Bad assignment.", that);
- }, 20);
- }
-
-
- function suffix(s, f) {
- var x = symbol(s, 150);
- x.led = function (left) {
- if (option.plusplus) {
- warning("Unexpected use of '{a}'.", this, this.id);
- } else if ((!left.identifier || left.reserved) && left.id !== '.' && left.id !== '[') {
- warning("Bad operand.", this);
- }
- this.left = left;
- return this;
- };
- return x;
- }
-
-
- function optionalidentifier() {
- if (nexttoken.reserved) {
- warning("Expected an identifier and instead saw '{a}' (a reserved word).",
- nexttoken, nexttoken.id);
- }
- if (nexttoken.identifier) {
- advance();
- return token.value;
- }
- }
-
-
- function identifier() {
- var i = optionalidentifier();
- if (i) {
- return i;
- }
- if (token.id === 'function' && nexttoken.id === '(') {
- warning("Missing name in function statement.");
- } else {
- error("Expected an identifier and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- }
-
- function reachable(s) {
- var i = 0, t;
- if (nexttoken.id !== ';' || noreach) {
- return;
- }
- for (;;) {
- t = peek(i);
- if (t.reach) {
- return;
- }
- if (t.id !== '(endline)') {
- if (t.id === 'function') {
- warning(
-"Inner functions should be listed at the top of the outer function.", t);
- break;
- }
- warning("Unreachable '{a}' after '{b}'.", t, t.value, s);
- break;
- }
- i += 1;
- }
- }
-
-
- function statement(noindent) {
- var i = indent, r, s = scope, t = nexttoken;
-
-// We don't like the empty statement.
-
- if (t.id === ';') {
- warning("Unnecessary semicolon.", t);
- advance(';');
- return;
- }
-
-// Is this a labelled statement?
-
- if (t.identifier && !t.reserved && peek().id === ':') {
- advance();
- advance(':');
- scope = Object.create(s);
- addlabel(t.value, 'label');
- if (!nexttoken.labelled) {
- warning("Label '{a}' on {b} statement.",
- nexttoken, t.value, nexttoken.value);
- }
- if (jx.test(t.value + ':')) {
- warning("Label '{a}' looks like a javascript url.",
- t, t.value);
- }
- nexttoken.label = t.value;
- t = nexttoken;
- }
-
-// Parse the statement.
-
- if (!noindent) {
- indentation();
- }
- r = parse(0, true);
-
-// Look for the final semicolon.
-
- if (!t.block) {
- if (!r || !r.exps) {
- warning(
-"Expected an assignment or function call and instead saw an expression.",
- token);
- } else if (r.id === '(' && r.left.id === 'new') {
- warning("Do not use 'new' for side effects.");
- }
- if (nexttoken.id !== ';') {
- warningAt("Missing semicolon.", token.line,
- token.from + token.value.length);
- } else {
- adjacent(token, nexttoken);
- advance(';');
- nonadjacent(token, nexttoken);
- }
- }
-
-// Restore the indentation.
-
- indent = i;
- scope = s;
- return r;
- }
-
-
- function use_strict() {
- if (nexttoken.value === 'use strict') {
- advance();
- advance(';');
- strict_mode = true;
- return true;
- } else {
- return false;
- }
- }
-
-
- function statements(begin) {
- var a = [], f, p;
- if (begin && !use_strict() && option.strict) {
- warning('Missing "use strict" statement.', nexttoken);
- }
- if (option.adsafe) {
- switch (begin) {
- case 'script':
- if (!adsafe_may) {
- if (nexttoken.value !== 'ADSAFE' ||
- peek(0).id !== '.' ||
- (peek(1).value !== 'id' &&
- peek(1).value !== 'go')) {
- error('ADsafe violation: Missing ADSAFE.id or ADSAFE.go.',
- nexttoken);
- }
- }
- if (nexttoken.value === 'ADSAFE' &&
- peek(0).id === '.' &&
- peek(1).value === 'id') {
- if (adsafe_may) {
- error('ADsafe violation.', nexttoken);
- }
- advance('ADSAFE');
- advance('.');
- advance('id');
- advance('(');
- if (nexttoken.value !== adsafe_id) {
- error('ADsafe violation: id does not match.', nexttoken);
- }
- advance('(string)');
- advance(')');
- advance(';');
- adsafe_may = true;
- }
- break;
- case 'lib':
- if (nexttoken.value === 'ADSAFE') {
- advance('ADSAFE');
- advance('.');
- advance('lib');
- advance('(');
- advance('(string)');
- comma();
- f = parse(0);
- if (f.id !== 'function') {
- error('The second argument to lib must be a function.', f);
- }
- p = f.funct['(params)'];
- p = p && p.join(', ');
- if (p && p !== 'lib') {
- error("Expected '{a}' and instead saw '{b}'.",
- f, '(lib)', '(' + p + ')');
- }
- advance(')');
- advance(';');
- return a;
- } else {
- error("ADsafe lib violation.");
- }
- }
- }
- while (!nexttoken.reach && nexttoken.id !== '(end)') {
- if (nexttoken.id === ';') {
- warning("Unnecessary semicolon.");
- advance(';');
- } else {
- a.push(statement());
- }
- }
- return a;
- }
-
-
- function block(f) {
- var a, b = inblock, old_indent = indent, s = scope, t;
- inblock = f;
- scope = Object.create(scope);
- nonadjacent(token, nexttoken);
- t = nexttoken;
- if (nexttoken.id === '{') {
- advance('{');
- if (nexttoken.id !== '}' || token.line !== nexttoken.line) {
- indent += option.indent;
- while (!f && nexttoken.from > indent) {
- indent += option.indent;
- }
- if (!f) {
- use_strict();
- }
- a = statements();
- indent -= option.indent;
- indentation();
- }
- advance('}', t);
- indent = old_indent;
- } else {
- warning("Expected '{a}' and instead saw '{b}'.",
- nexttoken, '{', nexttoken.value);
- noreach = true;
- a = [statement()];
- noreach = false;
- }
- funct['(verb)'] = null;
- scope = s;
- inblock = b;
- return a;
- }
-
-
-// An identity function, used by string and number tokens.
-
- function idValue() {
- return this;
- }
-
-
- function countMember(m) {
- if (membersOnly && typeof membersOnly[m] !== 'boolean') {
- warning("Unexpected /*member '{a}'.", token, m);
- }
- if (typeof member[m] === 'number') {
- member[m] += 1;
- } else {
- member[m] = 1;
- }
- }
-
-
- function note_implied(token) {
- var name = token.value, line = token.line, a = implied[name];
- if (typeof a === 'function') {
- a = false;
- }
- if (!a) {
- a = [line];
- implied[name] = a;
- } else if (a[a.length - 1] !== line) {
- a.push(line);
- }
- }
-
-// CSS parsing.
-
-
- function cssName() {
- if (nexttoken.identifier) {
- advance();
- return true;
- }
- }
-
- function cssNumber() {
- if (nexttoken.id === '-') {
- advance('-');
- adjacent();
- nolinebreak();
- }
- if (nexttoken.type === '(number)') {
- advance('(number)');
- return true;
- }
- }
-
- function cssString() {
- if (nexttoken.type === '(string)') {
- advance();
- return true;
- }
- }
-
- function cssColor() {
- var i, number, value;
- if (nexttoken.identifier) {
- value = nexttoken.value;
- if (value === 'rgb' || value === 'rgba') {
- advance();
- advance('(');
- for (i = 0; i < 3; i += 1) {
- if (i) {
- advance(',');
- }
- number = nexttoken.value;
- if (nexttoken.type !== '(number)' || number < 0) {
- warning("Expected a positive number and instead saw '{a}'",
- nexttoken, number);
- advance();
- } else {
- advance();
- if (nexttoken.id === '%') {
- advance('%');
- if (number > 100) {
- warning("Expected a percentage and instead saw '{a}'",
- token, number);
- }
- } else {
- if (number > 255) {
- warning("Expected a small number and instead saw '{a}'",
- token, number);
- }
- }
- }
- }
- if (value === 'rgba') {
- advance(',');
- number = +nexttoken.value;
- if (nexttoken.type !== '(number)' || number < 0 || number > 1) {
- warning("Expected a number between 0 and 1 and instead saw '{a}'",
- nexttoken, number);
- }
- advance();
- if (nexttoken.id === '%') {
- warning("Unexpected '%'.");
- advance('%');
- }
- }
- advance(')');
- return true;
- } else if (cssColorData[nexttoken.value] === true) {
- advance();
- return true;
- }
- } else if (nexttoken.type === '(color)') {
- advance();
- return true;
- }
- return false;
- }
-
- function cssLength() {
- if (nexttoken.id === '-') {
- advance('-');
- adjacent();
- nolinebreak();
- }
- if (nexttoken.type === '(number)') {
- advance();
- if (nexttoken.type !== '(string)' &&
- cssLengthData[nexttoken.value] === true) {
- adjacent();
- advance();
- } else if (+token.value !== 0) {
- warning("Expected a linear unit and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- return true;
- }
- return false;
- }
-
- function cssLineHeight() {
- if (nexttoken.id === '-') {
- advance('-');
- adjacent();
- }
- if (nexttoken.type === '(number)') {
- advance();
- if (nexttoken.type !== '(string)' &&
- cssLengthData[nexttoken.value] === true) {
- adjacent();
- advance();
- }
- return true;
- }
- return false;
- }
-
- function cssWidth() {
- if (nexttoken.identifier) {
- switch (nexttoken.value) {
- case 'thin':
- case 'medium':
- case 'thick':
- advance();
- return true;
- }
- } else {
- return cssLength();
- }
- }
-
- function cssMargin() {
- if (nexttoken.identifier) {
- if (nexttoken.value === 'auto') {
- advance();
- return true;
- }
- } else {
- return cssLength();
- }
- }
-
- function cssAttr() {
- if (nexttoken.identifier && nexttoken.value === 'attr') {
- advance();
- advance('(');
- if (!nexttoken.identifier) {
- warning("Expected a name and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- advance();
- advance(')');
- return true;
- }
- return false;
- }
-
- function cssCommaList() {
- while (nexttoken.id !== ';') {
- if (!cssName() && !cssString()) {
- warning("Expected a name and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- if (nexttoken.id !== ',') {
- return true;
- }
- comma();
- }
- }
-
- function cssCounter() {
- if (nexttoken.identifier && nexttoken.value === 'counter') {
- advance();
- advance('(');
- if (!nexttoken.identifier) {
- }
- advance();
- if (nexttoken.id === ',') {
- comma();
- if (nexttoken.type !== '(string)') {
- warning("Expected a string and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- advance();
- }
- advance(')');
- return true;
- }
- if (nexttoken.identifier && nexttoken.value === 'counters') {
- advance();
- advance('(');
- if (!nexttoken.identifier) {
- warning("Expected a name and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- advance();
- if (nexttoken.id === ',') {
- comma();
- if (nexttoken.type !== '(string)') {
- warning("Expected a string and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- advance();
- }
- if (nexttoken.id === ',') {
- comma();
- if (nexttoken.type !== '(string)') {
- warning("Expected a string and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- advance();
- }
- advance(')');
- return true;
- }
- return false;
- }
-
-
- function cssShape() {
- var i;
- if (nexttoken.identifier && nexttoken.value === 'rect') {
- advance();
- advance('(');
- for (i = 0; i < 4; i += 1) {
- if (!cssLength()) {
- warning("Expected a number and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- break;
- }
- }
- advance(')');
- return true;
- }
- return false;
- }
-
- function cssUrl() {
- var c, url;
- if (nexttoken.identifier && nexttoken.value === 'url') {
- nexttoken = lex.range('(', ')');
- url = nexttoken.value;
- c = url.charAt(0);
- if (c === '"' || c === '\'') {
- if (url.slice(-1) !== c) {
- warning("Bad url string.");
- } else {
- url = url.slice(1, -1);
- if (url.indexOf(c) >= 0) {
- warning("Bad url string.");
- }
- }
- }
- if (!url) {
- warning("Missing url.");
- }
- advance();
- if (option.safe && ux.test(url)) {
- error("ADsafe URL violation.");
- }
- urls.push(url);
- return true;
- }
- return false;
- }
-
- cssAny = [cssUrl, function () {
- for (;;) {
- if (nexttoken.identifier) {
- switch (nexttoken.value.toLowerCase()) {
- case 'url':
- cssUrl();
- break;
- case 'expression':
- warning("Unexpected expression '{a}'.",
- nexttoken, nexttoken.value);
- advance();
- break;
- default:
- advance();
- }
- } else {
- if (nexttoken.id === ';' || nexttoken.id === '!' ||
- nexttoken.id === '(end)' || nexttoken.id === '}') {
- return true;
- }
- advance();
- }
- }
- }];
-
- cssBorderStyle = [
- 'none', 'hidden', 'dotted', 'dashed', 'solid', 'double', 'ridge',
- 'inset', 'outset'
- ];
-
- cssBreak = [
- 'auto', 'always', 'avoid', 'left', 'right'
- ];
-
- cssOverflow = [
- 'auto', 'hidden', 'scroll', 'visible'
- ];
-
- cssAttributeData = {
- background: [
- true, 'background-attachment', 'background-color',
- 'background-image', 'background-position', 'background-repeat'
- ],
- 'background-attachment': ['scroll', 'fixed'],
- 'background-color': ['transparent', cssColor],
- 'background-image': ['none', cssUrl],
- 'background-position': [
- 2, [cssLength, 'top', 'bottom', 'left', 'right', 'center']
- ],
- 'background-repeat': [
- 'repeat', 'repeat-x', 'repeat-y', 'no-repeat'
- ],
- 'border': [true, 'border-color', 'border-style', 'border-width'],
- 'border-bottom': [
- true, 'border-bottom-color', 'border-bottom-style',
- 'border-bottom-width'
- ],
- 'border-bottom-color': cssColor,
- 'border-bottom-style': cssBorderStyle,
- 'border-bottom-width': cssWidth,
- 'border-collapse': ['collapse', 'separate'],
- 'border-color': ['transparent', 4, cssColor],
- 'border-left': [
- true, 'border-left-color', 'border-left-style', 'border-left-width'
- ],
- 'border-left-color': cssColor,
- 'border-left-style': cssBorderStyle,
- 'border-left-width': cssWidth,
- 'border-right': [
- true, 'border-right-color', 'border-right-style',
- 'border-right-width'
- ],
- 'border-right-color': cssColor,
- 'border-right-style': cssBorderStyle,
- 'border-right-width': cssWidth,
- 'border-spacing': [2, cssLength],
- 'border-style': [4, cssBorderStyle],
- 'border-top': [
- true, 'border-top-color', 'border-top-style', 'border-top-width'
- ],
- 'border-top-color': cssColor,
- 'border-top-style': cssBorderStyle,
- 'border-top-width': cssWidth,
- 'border-width': [4, cssWidth],
- bottom: [cssLength, 'auto'],
- 'caption-side' : ['bottom', 'left', 'right', 'top'],
- clear: ['both', 'left', 'none', 'right'],
- clip: [cssShape, 'auto'],
- color: cssColor,
- content: [
- 'open-quote', 'close-quote', 'no-open-quote', 'no-close-quote',
- cssString, cssUrl, cssCounter, cssAttr
- ],
- 'counter-increment': [
- cssName, 'none'
- ],
- 'counter-reset': [
- cssName, 'none'
- ],
- cursor: [
- cssUrl, 'auto', 'crosshair', 'default', 'e-resize', 'help', 'move',
- 'n-resize', 'ne-resize', 'nw-resize', 'pointer', 's-resize',
- 'se-resize', 'sw-resize', 'w-resize', 'text', 'wait'
- ],
- direction: ['ltr', 'rtl'],
- display: [
- 'block', 'compact', 'inline', 'inline-block', 'inline-table',
- 'list-item', 'marker', 'none', 'run-in', 'table', 'table-caption',
- 'table-cell', 'table-column', 'table-column-group',
- 'table-footer-group', 'table-header-group', 'table-row',
- 'table-row-group'
- ],
- 'empty-cells': ['show', 'hide'],
- 'float': ['left', 'none', 'right'],
- font: [
- 'caption', 'icon', 'menu', 'message-box', 'small-caption',
- 'status-bar', true, 'font-size', 'font-style', 'font-weight',
- 'font-family'
- ],
- 'font-family': cssCommaList,
- 'font-size': [
- 'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large',
- 'xx-large', 'larger', 'smaller', cssLength
- ],
- 'font-size-adjust': ['none', cssNumber],
- 'font-stretch': [
- 'normal', 'wider', 'narrower', 'ultra-condensed',
- 'extra-condensed', 'condensed', 'semi-condensed',
- 'semi-expanded', 'expanded', 'extra-expanded'
- ],
- 'font-style': [
- 'normal', 'italic', 'oblique'
- ],
- 'font-variant': [
- 'normal', 'small-caps'
- ],
- 'font-weight': [
- 'normal', 'bold', 'bolder', 'lighter', cssNumber
- ],
- height: [cssLength, 'auto'],
- left: [cssLength, 'auto'],
- 'letter-spacing': ['normal', cssLength],
- 'line-height': ['normal', cssLineHeight],
- 'list-style': [
- true, 'list-style-image', 'list-style-position', 'list-style-type'
- ],
- 'list-style-image': ['none', cssUrl],
- 'list-style-position': ['inside', 'outside'],
- 'list-style-type': [
- 'circle', 'disc', 'square', 'decimal', 'decimal-leading-zero',
- 'lower-roman', 'upper-roman', 'lower-greek', 'lower-alpha',
- 'lower-latin', 'upper-alpha', 'upper-latin', 'hebrew', 'katakana',
- 'hiragana-iroha', 'katakana-oroha', 'none'
- ],
- margin: [4, cssMargin],
- 'margin-bottom': cssMargin,
- 'margin-left': cssMargin,
- 'margin-right': cssMargin,
- 'margin-top': cssMargin,
- 'marker-offset': [cssLength, 'auto'],
- 'max-height': [cssLength, 'none'],
- 'max-width': [cssLength, 'none'],
- 'min-height': cssLength,
- 'min-width': cssLength,
- opacity: cssNumber,
- outline: [true, 'outline-color', 'outline-style', 'outline-width'],
- 'outline-color': ['invert', cssColor],
- 'outline-style': [
- 'dashed', 'dotted', 'double', 'groove', 'inset', 'none',
- 'outset', 'ridge', 'solid'
- ],
- 'outline-width': cssWidth,
- overflow: cssOverflow,
- 'overflow-x': cssOverflow,
- 'overflow-y': cssOverflow,
- padding: [4, cssLength],
- 'padding-bottom': cssLength,
- 'padding-left': cssLength,
- 'padding-right': cssLength,
- 'padding-top': cssLength,
- 'page-break-after': cssBreak,
- 'page-break-before': cssBreak,
- position: ['absolute', 'fixed', 'relative', 'static'],
- quotes: [8, cssString],
- right: [cssLength, 'auto'],
- 'table-layout': ['auto', 'fixed'],
- 'text-align': ['center', 'justify', 'left', 'right'],
- 'text-decoration': [
- 'none', 'underline', 'overline', 'line-through', 'blink'
- ],
- 'text-indent': cssLength,
- 'text-shadow': ['none', 4, [cssColor, cssLength]],
- 'text-transform': ['capitalize', 'uppercase', 'lowercase', 'none'],
- top: [cssLength, 'auto'],
- 'unicode-bidi': ['normal', 'embed', 'bidi-override'],
- 'vertical-align': [
- 'baseline', 'bottom', 'sub', 'super', 'top', 'text-top', 'middle',
- 'text-bottom', cssLength
- ],
- visibility: ['visible', 'hidden', 'collapse'],
- 'white-space': [
- 'normal', 'nowrap', 'pre', 'pre-line', 'pre-wrap', 'inherit'
- ],
- width: [cssLength, 'auto'],
- 'word-spacing': ['normal', cssLength],
- 'word-wrap': ['break-word', 'normal'],
- 'z-index': ['auto', cssNumber]
- };
-
- function styleAttribute() {
- var v;
- while (nexttoken.id === '*' || nexttoken.id === '#' ||
- nexttoken.value === '_') {
- if (!option.css) {
- warning("Unexpected '{a}'.", nexttoken, nexttoken.value);
- }
- advance();
- }
- if (nexttoken.id === '-') {
- if (!option.css) {
- warning("Unexpected '{a}'.", nexttoken, nexttoken.value);
- }
- advance('-');
- if (!nexttoken.identifier) {
- warning(
-"Expected a non-standard style attribute and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- advance();
- return cssAny;
- } else {
- if (!nexttoken.identifier) {
- warning("Excepted a style attribute, and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- } else {
- if (is_own(cssAttributeData, nexttoken.value)) {
- v = cssAttributeData[nexttoken.value];
- } else {
- v = cssAny;
- if (!option.css) {
- warning("Unrecognized style attribute '{a}'.",
- nexttoken, nexttoken.value);
- }
- }
- }
- advance();
- return v;
- }
- }
-
- function styleValue(v) {
- var i = 0,
- n,
- once,
- match,
- round,
- start = 0,
- vi;
- switch (typeof v) {
- case 'function':
- return v();
- case 'string':
- if (nexttoken.identifier && nexttoken.value === v) {
- advance();
- return true;
- }
- return false;
- }
- for (;;) {
- if (i >= v.length) {
- return false;
- }
- vi = v[i];
- i += 1;
- if (vi === true) {
- break;
- } else if (typeof vi === 'number') {
- n = vi;
- vi = v[i];
- i += 1;
- } else {
- n = 1;
- }
- match = false;
- while (n > 0) {
- if (styleValue(vi)) {
- match = true;
- n -= 1;
- } else {
- break;
- }
- }
- if (match) {
- return true;
- }
- }
- start = i;
- once = [];
- for (;;) {
- round = false;
- for (i = start; i < v.length; i += 1) {
- if (!once[i]) {
- if (styleValue(cssAttributeData[v[i]])) {
- match = true;
- round = true;
- once[i] = true;
- break;
- }
- }
- }
- if (!round) {
- return match;
- }
- }
- }
-
- function styleChild() {
- if (nexttoken.id === '(number)') {
- advance();
- if (nexttoken.value === 'n' && nexttoken.identifier) {
- adjacent();
- advance();
- if (nexttoken.id === '+') {
- adjacent();
- advance('+');
- adjacent();
- advance('(number)');
- }
- }
- return;
- } else {
- switch (nexttoken.value) {
- case 'odd':
- case 'even':
- if (nexttoken.identifier) {
- advance();
- return;
- }
- }
- }
- warning("Unexpected token '{a}'.", nexttoken, nexttoken.value);
- }
-
- function substyle() {
- var v;
- for (;;) {
- if (nexttoken.id === '}' || nexttoken.id === '(end)' ||
- xquote && nexttoken.id === xquote) {
- return;
- }
- while (nexttoken.id === ';') {
- warning("Misplaced ';'.");
- advance(';');
- }
- v = styleAttribute();
- advance(':');
- if (nexttoken.identifier && nexttoken.value === 'inherit') {
- advance();
- } else {
- if (!styleValue(v)) {
- warning("Unexpected token '{a}'.", nexttoken,
- nexttoken.value);
- advance();
- }
- }
- if (nexttoken.id === '!') {
- advance('!');
- adjacent();
- if (nexttoken.identifier && nexttoken.value === 'important') {
- advance();
- } else {
- warning("Expected '{a}' and instead saw '{b}'.",
- nexttoken, 'important', nexttoken.value);
- }
- }
- if (nexttoken.id === '}' || nexttoken.id === xquote) {
- warning("Missing '{a}'.", nexttoken, ';');
- } else {
- advance(';');
- }
- }
- }
-
- function styleSelector() {
- if (nexttoken.identifier) {
- if (!is_own(htmltag, nexttoken.value)) {
- warning("Expected a tagName, and instead saw {a}.",
- nexttoken, nexttoken.value);
- }
- advance();
- } else {
- switch (nexttoken.id) {
- case '>':
- case '+':
- advance();
- styleSelector();
- break;
- case ':':
- advance(':');
- switch (nexttoken.value) {
- case 'active':
- case 'after':
- case 'before':
- case 'checked':
- case 'disabled':
- case 'empty':
- case 'enabled':
- case 'first-child':
- case 'first-letter':
- case 'first-line':
- case 'first-of-type':
- case 'focus':
- case 'hover':
- case 'last-of-type':
- case 'link':
- case 'only-of-type':
- case 'root':
- case 'target':
- case 'visited':
- advance();
- break;
- case 'lang':
- advance();
- advance('(');
- if (!nexttoken.identifier) {
- warning("Expected a lang code, and instead saw :{a}.",
- nexttoken, nexttoken.value);
- }
- advance(')');
- break;
- case 'nth-child':
- case 'nth-last-child':
- case 'nth-last-of-type':
- case 'nth-of-type':
- advance();
- advance('(');
- styleChild();
- advance(')');
- break;
- case 'not':
- advance();
- advance('(');
- if (nexttoken.id === ':' && peek(0).value === 'not') {
- warning("Nested not.");
- }
- styleSelector();
- advance(')');
- break;
- default:
- warning("Expected a pseudo, and instead saw :{a}.",
- nexttoken, nexttoken.value);
- }
- break;
- case '#':
- advance('#');
- if (!nexttoken.identifier) {
- warning("Expected an id, and instead saw #{a}.",
- nexttoken, nexttoken.value);
- }
- advance();
- break;
- case '*':
- advance('*');
- break;
- case '.':
- advance('.');
- if (!nexttoken.identifier) {
- warning("Expected a class, and instead saw #.{a}.",
- nexttoken, nexttoken.value);
- }
- advance();
- break;
- case '[':
- advance('[');
- if (!nexttoken.identifier) {
- warning("Expected an attribute, and instead saw [{a}].",
- nexttoken, nexttoken.value);
- }
- advance();
- if (nexttoken.id === '=' || nexttoken.value === '~=' ||
- nexttoken.value === '$=' ||
- nexttoken.value === '|=' ||
- nexttoken.id === '*=' ||
- nexttoken.id === '^=') {
- advance();
- if (nexttoken.type !== '(string)') {
- warning("Expected a string, and instead saw {a}.",
- nexttoken, nexttoken.value);
- }
- advance();
- }
- advance(']');
- break;
- default:
- error("Expected a CSS selector, and instead saw {a}.",
- nexttoken, nexttoken.value);
- }
- }
- }
-
- function stylePattern() {
- var name;
- if (nexttoken.id === '{') {
- warning("Expected a style pattern, and instead saw '{a}'.", nexttoken,
- nexttoken.id);
- } else if (nexttoken.id === '@') {
- advance('@');
- name = nexttoken.value;
- if (nexttoken.identifier && atrule[name] === true) {
- advance();
- return name;
- }
- warning("Expected an at-rule, and instead saw @{a}.", nexttoken, name);
- }
- for (;;) {
- styleSelector();
- if (nexttoken.id === '</' || nexttoken.id === '{' ||
- nexttoken.id === '(end)') {
- return '';
- }
- if (nexttoken.id === ',') {
- comma();
- }
- }
- }
-
- function styles() {
- var i;
- while (nexttoken.id === '@') {
- i = peek();
- if (i.identifier && i.value === 'import') {
- advance('@');
- advance();
- if (!cssUrl()) {
- warning("Expected '{a}' and instead saw '{b}'.", nexttoken,
- 'url', nexttoken.value);
- advance();
- }
- advance(';');
- } else {
- break;
- }
- }
- while (nexttoken.id !== '</' && nexttoken.id !== '(end)') {
- stylePattern();
- xmode = 'styleproperty';
- if (nexttoken.id === ';') {
- advance(';');
- } else {
- advance('{');
- substyle();
- xmode = 'style';
- advance('}');
- }
- }
- }
-
-
-// HTML parsing.
-
- function doBegin(n) {
- if (n !== 'html' && !option.fragment) {
- if (n === 'div' && option.adsafe) {
- error("ADSAFE: Use the fragment option.");
- } else {
- error("Expected '{a}' and instead saw '{b}'.",
- token, 'html', n);
- }
- }
- if (option.adsafe) {
- if (n === 'html') {
- error(
-"Currently, ADsafe does not operate on whole HTML documents. It operates on <div> fragments and .js files.", token);
- }
- if (option.fragment) {
- if (n !== 'div') {
- error("ADsafe violation: Wrap the widget in a div.", token);
- }
- } else {
- error("Use the fragment option.", token);
- }
- }
- option.browser = true;
- assume();
- }
-
- function doAttribute(n, a, v) {
- var u, x;
- if (a === 'id') {
- u = typeof v === 'string' ? v.toUpperCase() : '';
- if (ids[u] === true) {
- warning("Duplicate id='{a}'.", nexttoken, v);
- }
- if (!/^[A-Za-z][A-Za-z0-9._:\-]*$/.test(v)) {
- warning("Bad id: '{a}'.", nexttoken, v);
- } else if (option.adsafe) {
- if (adsafe_id) {
- if (v.slice(0, adsafe_id.length) !== adsafe_id) {
- warning("ADsafe violation: An id must have a '{a}' prefix",
- nexttoken, adsafe_id);
- } else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
- warning("ADSAFE violation: bad id.");
- }
- } else {
- adsafe_id = v;
- if (!/^[A-Z]+_$/.test(v)) {
- warning("ADSAFE violation: bad id.");
- }
- }
- }
- x = v.search(dx);
- if (x >= 0) {
- warning("Unexpected character '{a}' in {b}.", token, v.charAt(x), a);
- }
- ids[u] = true;
- } else if (a === 'class' || a === 'type' || a === 'name') {
- x = v.search(qx);
- if (x >= 0) {
- warning("Unexpected character '{a}' in {b}.", token, v.charAt(x), a);
- }
- ids[u] = true;
- } else if (a === 'href' || a === 'background' ||
- a === 'content' || a === 'data' ||
- a.indexOf('src') >= 0 || a.indexOf('url') >= 0) {
- if (option.safe && ux.test(v)) {
- error("ADsafe URL violation.");
- }
- urls.push(v);
- } else if (a === 'for') {
- if (option.adsafe) {
- if (adsafe_id) {
- if (v.slice(0, adsafe_id.length) !== adsafe_id) {
- warning("ADsafe violation: An id must have a '{a}' prefix",
- nexttoken, adsafe_id);
- } else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
- warning("ADSAFE violation: bad id.");
- }
- } else {
- warning("ADSAFE violation: bad id.");
- }
- }
- } else if (a === 'name') {
- if (option.adsafe && v.indexOf('_') >= 0) {
- warning("ADsafe name violation.");
- }
- }
- }
-
- function doTag(n, a) {
- var i, t = htmltag[n], x;
- src = false;
- if (!t) {
- error("Unrecognized tag '<{a}>'.",
- nexttoken,
- n === n.toLowerCase() ? n :
- n + ' (capitalization error)');
- }
- if (stack.length > 0) {
- if (n === 'html') {
- error("Too many <html> tags.", token);
- }
- x = t.parent;
- if (x) {
- if (x.indexOf(' ' + stack[stack.length - 1].name + ' ') < 0) {
- error("A '<{a}>' must be within '<{b}>'.",
- token, n, x);
- }
- } else if (!option.adsafe && !option.fragment) {
- i = stack.length;
- do {
- if (i <= 0) {
- error("A '<{a}>' must be within '<{b}>'.",
- token, n, 'body');
- }
- i -= 1;
- } while (stack[i].name !== 'body');
- }
- }
- switch (n) {
- case 'div':
- if (option.adsafe && stack.length === 1 && !adsafe_id) {
- warning("ADSAFE violation: missing ID_.");
- }
- break;
- case 'script':
- xmode = 'script';
- advance('>');
- indent = nexttoken.from;
- if (a.lang) {
- warning("lang is deprecated.", token);
- }
- if (option.adsafe && stack.length !== 1) {
- warning("ADsafe script placement violation.", token);
- }
- if (a.src) {
- if (option.adsafe && (!adsafe_may || !approved[a.src])) {
- warning("ADsafe unapproved script source.", token);
- }
- if (a.type) {
- warning("type is unnecessary.", token);
- }
- } else {
- if (adsafe_went) {
- error("ADsafe script violation.", token);
- }
- statements('script');
- }
- xmode = 'html';
- advance('</');
- if (!nexttoken.identifier && nexttoken.value !== 'script') {
- warning("Expected '{a}' and instead saw '{b}'.",
- nexttoken, 'script', nexttoken.value);
- }
- advance();
- xmode = 'outer';
- break;
- case 'style':
- xmode = 'style';
- advance('>');
- styles();
- xmode = 'html';
- advance('</');
- if (!nexttoken.identifier && nexttoken.value !== 'style') {
- warning("Expected '{a}' and instead saw '{b}'.",
- nexttoken, 'style', nexttoken.value);
- }
- advance();
- xmode = 'outer';
- break;
- case 'input':
- switch (a.type) {
- case 'radio':
- case 'checkbox':
- case 'button':
- case 'reset':
- case 'submit':
- break;
- case 'text':
- case 'file':
- case 'password':
- case 'file':
- case 'hidden':
- case 'image':
- if (option.adsafe && a.autocomplete !== 'off') {
- warning("ADsafe autocomplete violation.");
- }
- break;
- default:
- warning("Bad input type.");
- }
- break;
- case 'applet':
- case 'body':
- case 'embed':
- case 'frame':
- case 'frameset':
- case 'head':
- case 'iframe':
- case 'noembed':
- case 'noframes':
- case 'object':
- case 'param':
- if (option.adsafe) {
- warning("ADsafe violation: Disallowed tag: " + n);
- }
- break;
- }
- }
-
-
- function closetag(n) {
- return '</' + n + '>';
- }
-
- function html() {
- var a, attributes, e, n, q, t, v, w = option.white, wmode;
- xmode = 'html';
- xquote = '';
- stack = null;
- for (;;) {
- switch (nexttoken.value) {
- case '<':
- xmode = 'html';
- advance('<');
- attributes = {};
- t = nexttoken;
- if (!t.identifier) {
- warning("Bad identifier {a}.", t, t.value);
- }
- n = t.value;
- if (option.cap) {
- n = n.toLowerCase();
- }
- t.name = n;
- advance();
- if (!stack) {
- stack = [];
- doBegin(n);
- }
- v = htmltag[n];
- if (typeof v !== 'object') {
- error("Unrecognized tag '<{a}>'.", t, n);
- }
- e = v.empty;
- t.type = n;
- for (;;) {
- if (nexttoken.id === '/') {
- advance('/');
- if (nexttoken.id !== '>') {
- warning("Expected '{a}' and instead saw '{b}'.",
- nexttoken, '>', nexttoken.value);
- }
- break;
- }
- if (nexttoken.id && nexttoken.id.substr(0, 1) === '>') {
- break;
- }
- if (!nexttoken.identifier) {
- if (nexttoken.id === '(end)' || nexttoken.id === '(error)') {
- error("Missing '>'.", nexttoken);
- }
- warning("Bad identifier.");
- }
- option.white = true;
- nonadjacent(token, nexttoken);
- a = nexttoken.value;
- option.white = w;
- advance();
- if (!option.cap && a !== a.toLowerCase()) {
- warning("Attribute '{a}' not all lower case.", nexttoken, a);
- }
- a = a.toLowerCase();
- xquote = '';
- if (is_own(attributes, a)) {
- warning("Attribute '{a}' repeated.", nexttoken, a);
- }
- if (a.slice(0, 2) === 'on') {
- if (!option.on) {
- warning("Avoid HTML event handlers.");
- }
- xmode = 'scriptstring';
- advance('=');
- q = nexttoken.id;
- if (q !== '"' && q !== "'") {
- error("Missing quote.");
- }
- xquote = q;
- wmode = option.white;
- option.white = false;
- advance(q);
- statements('on');
- option.white = wmode;
- if (nexttoken.id !== q) {
- error("Missing close quote on script attribute.");
- }
- xmode = 'html';
- xquote = '';
- advance(q);
- v = false;
- } else if (a === 'style') {
- xmode = 'scriptstring';
- advance('=');
- q = nexttoken.id;
- if (q !== '"' && q !== "'") {
- error("Missing quote.");
- }
- xmode = 'styleproperty';
- xquote = q;
- advance(q);
- substyle();
- xmode = 'html';
- xquote = '';
- advance(q);
- v = false;
- } else {
- if (nexttoken.id === '=') {
- advance('=');
- v = nexttoken.value;
- if (!nexttoken.identifier &&
- nexttoken.id !== '"' &&
- nexttoken.id !== '\'' &&
- nexttoken.type !== '(string)' &&
- nexttoken.type !== '(number)' &&
- nexttoken.type !== '(color)') {
- warning("Expected an attribute value and instead saw '{a}'.", token, a);
- }
- advance();
- } else {
- v = true;
- }
- }
- attributes[a] = v;
- doAttribute(n, a, v);
- }
- doTag(n, attributes);
- if (!e) {
- stack.push(t);
- }
- xmode = 'outer';
- advance('>');
- break;
- case '</':
- xmode = 'html';
- advance('</');
- if (!nexttoken.identifier) {
- warning("Bad identifier.");
- }
- n = nexttoken.value;
- if (option.cap) {
- n = n.toLowerCase();
- }
- advance();
- if (!stack) {
- error("Unexpected '{a}'.", nexttoken, closetag(n));
- }
- t = stack.pop();
- if (!t) {
- error("Unexpected '{a}'.", nexttoken, closetag(n));
- }
- if (t.name !== n) {
- error("Expected '{a}' and instead saw '{b}'.",
- nexttoken, closetag(t.name), closetag(n));
- }
- if (nexttoken.id !== '>') {
- error("Missing '{a}'.", nexttoken, '>');
- }
- xmode = 'outer';
- advance('>');
- break;
- case '<!':
- if (option.safe) {
- warning("ADsafe HTML violation.");
- }
- xmode = 'html';
- for (;;) {
- advance();
- if (nexttoken.id === '>' || nexttoken.id === '(end)') {
- break;
- }
- if (nexttoken.value.indexOf('--') >= 0) {
- warning("Unexpected --.");
- }
- if (nexttoken.value.indexOf('<') >= 0) {
- warning("Unexpected <.");
- }
- if (nexttoken.value.indexOf('>') >= 0) {
- warning("Unexpected >.");
- }
- }
- xmode = 'outer';
- advance('>');
- break;
- case '(end)':
- return;
- default:
- if (nexttoken.id === '(end)') {
- error("Missing '{a}'.", nexttoken,
- '</' + stack[stack.length - 1].value + '>');
- } else {
- advance();
- }
- }
- if (stack && stack.length === 0 && (option.adsafe ||
- !option.fragment || nexttoken.id === '(end)')) {
- break;
- }
- }
- if (nexttoken.id !== '(end)') {
- error("Unexpected material after the end.");
- }
- }
-
-
-// Build the syntax table by declaring the syntactic elements of the language.
-
- type('(number)', idValue);
- type('(string)', idValue);
-
- syntax['(identifier)'] = {
- type: '(identifier)',
- lbp: 0,
- identifier: true,
- nud: function () {
- var v = this.value,
- s = scope[v],
- f;
- if (typeof s === 'function') {
- s = undefined;
- } else if (typeof s === 'boolean') {
- f = funct;
- funct = functions[0];
- addlabel(v, 'var');
- s = funct;
- funct = f;
- }
-
-// The name is in scope and defined in the current function.
-
- if (funct === s) {
-
-// Change 'unused' to 'var', and reject labels.
-
- switch (funct[v]) {
- case 'unused':
- funct[v] = 'var';
- break;
- case 'label':
- warning("'{a}' is a statement label.", token, v);
- break;
- }
-
-// The name is not defined in the function. If we are in the global scope,
-// then we have an undefined variable.
-
- } else if (funct['(global)']) {
- if (option.undef && predefined[v] !== 'boolean') {
- warning("'{a}' is not defined.", token, v);
- }
- note_implied(token);
-
-// If the name is already defined in the current
-// function, but not as outer, then there is a scope error.
-
- } else {
- switch (funct[v]) {
- case 'closure':
- case 'function':
- case 'var':
- case 'unused':
- warning("'{a}' used out of scope.", token, v);
- break;
- case 'label':
- warning("'{a}' is a statement label.", token, v);
- break;
- case 'outer':
- case 'global':
- break;
- default:
-
-// If the name is defined in an outer function, make an outer entry, and if
-// it was unused, make it var.
-
- if (s === true) {
- funct[v] = true;
- } else if (s === null) {
- warning("'{a}' is not allowed.", token, v);
- note_implied(token);
- } else if (typeof s !== 'object') {
- if (option.undef) {
- warning("'{a}' is not defined.", token, v);
- } else {
- funct[v] = true;
- }
- note_implied(token);
- } else {
- switch (s[v]) {
- case 'function':
- case 'var':
- case 'unused':
- s[v] = 'closure';
- funct[v] = s['(global)'] ? 'global' : 'outer';
- break;
- case 'closure':
- case 'parameter':
- funct[v] = s['(global)'] ? 'global' : 'outer';
- break;
- case 'label':
- warning("'{a}' is a statement label.", token, v);
- }
- }
- }
- }
- return this;
- },
- led: function () {
- error("Expected an operator and instead saw '{a}'.",
- nexttoken, nexttoken.value);
- }
- };
-
- type('(regexp)', function () {
- return this;
- });
-
- delim('(endline)');
- delim('(begin)');
- delim('(end)').reach = true;
- delim('</').reach = true;
- delim('<!');
- delim('<!--');
- delim('-->');
- delim('(error)').reach = true;
- delim('}').reach = true;
- delim(')');
- delim(']');
- delim('"').reach = true;
- delim("'").reach = true;
- delim(';');
- delim(':').reach = true;
- delim(',');
- delim('#');
- delim('@');
- reserve('else');
- reserve('case').reach = true;
- reserve('catch');
- reserve('default').reach = true;
- reserve('finally');
- reservevar('arguments');
- reservevar('eval');
- reservevar('false');
- reservevar('Infinity');
- reservevar('NaN');
- reservevar('null');
- reservevar('this');
- reservevar('true');
- reservevar('undefined');
- assignop('=', 'assign', 20);
- assignop('+=', 'assignadd', 20);
- assignop('-=', 'assignsub', 20);
- assignop('*=', 'assignmult', 20);
- assignop('/=', 'assigndiv', 20).nud = function () {
- error("A regular expression literal can be confused with '/='.");
- };
- assignop('%=', 'assignmod', 20);
- bitwiseassignop('&=', 'assignbitand', 20);
- bitwiseassignop('|=', 'assignbitor', 20);
- bitwiseassignop('^=', 'assignbitxor', 20);
- bitwiseassignop('<<=', 'assignshiftleft', 20);
- bitwiseassignop('>>=', 'assignshiftright', 20);
- bitwiseassignop('>>>=', 'assignshiftrightunsigned', 20);
- infix('?', function (left, that) {
- that.left = left;
- that.right = parse(10);
- advance(':');
- that['else'] = parse(10);
- return that;
- }, 30);
-
- infix('||', 'or', 40);
- infix('&&', 'and', 50);
- bitwise('|', 'bitor', 70);
- bitwise('^', 'bitxor', 80);
- bitwise('&', 'bitand', 90);
- relation('==', function (left, right) {
- if (option.eqeqeq) {
- warning("Expected '{a}' and instead saw '{b}'.",
- this, '===', '==');
- } else if (isPoorRelation(left)) {
- warning("Use '{a}' to compare with '{b}'.",
- this, '===', left.value);
- } else if (isPoorRelation(right)) {
- warning("Use '{a}' to compare with '{b}'.",
- this, '===', right.value);
- }
- return this;
- });
- relation('===');
- relation('!=', function (left, right) {
- if (option.eqeqeq) {
- warning("Expected '{a}' and instead saw '{b}'.",
- this, '!==', '!=');
- } else if (isPoorRelation(left)) {
- warning("Use '{a}' to compare with '{b}'.",
- this, '!==', left.value);
- } else if (isPoorRelation(right)) {
- warning("Use '{a}' to compare with '{b}'.",
- this, '!==', right.value);
- }
- return this;
- });
- relation('!==');
- relation('<');
- relation('>');
- relation('<=');
- relation('>=');
- bitwise('<<', 'shiftleft', 120);
- bitwise('>>', 'shiftright', 120);
- bitwise('>>>', 'shiftrightunsigned', 120);
- infix('in', 'in', 120);
- infix('instanceof', 'instanceof', 120);
- infix('+', function (left, that) {
- var right = parse(130);
- if (left && right && left.id === '(string)' && right.id === '(string)') {
- left.value += right.value;
- left.character = right.character;
- if (jx.test(left.value)) {
- warning("JavaScript URL.", left);
- }
- return left;
- }
- that.left = left;
- that.right = right;
- return that;
- }, 130);
- prefix('+', 'num');
- infix('-', 'sub', 130);
- prefix('-', 'neg');
- infix('*', 'mult', 140);
- infix('/', 'div', 140);
- infix('%', 'mod', 140);
-
- suffix('++', 'postinc');
- prefix('++', 'preinc');
- syntax['++'].exps = true;
-
- suffix('--', 'postdec');
- prefix('--', 'predec');
- syntax['--'].exps = true;
- prefix('delete', function () {
- var p = parse(0);
- if (!p || (p.id !== '.' && p.id !== '[')) {
- warning("Expected '{a}' and instead saw '{b}'.",
- nexttoken, '.', nexttoken.value);
- }
- this.first = p;
- return this;
- }).exps = true;
-
-
- prefix('~', function () {
- if (option.bitwise) {
- warning("Unexpected '{a}'.", this, '~');
- }
- parse(150);
- return this;
- });
- prefix('!', function () {
- this.right = parse(150);
- this.arity = 'unary';
- if (bang[this.right.id] === true) {
- warning("Confusing use of '{a}'.", this, '!');
- }
- return this;
- });
- prefix('typeof', 'typeof');
- prefix('new', function () {
- var c = parse(155), i;
- if (c && c.id !== 'function') {
- if (c.identifier) {
- c['new'] = true;
- switch (c.value) {
- case 'Object':
- warning("Use the object literal notation {}.", token);
- break;
- case 'Array':
- if (nexttoken.id !== '(') {
- warning("Use the array literal notation [].", token);
- } else {
- advance('(');
- if (nexttoken.id === ')') {
- warning("Use the array literal notation [].", token);
- } else {
- i = parse(0);
- c.dimension = i;
- if ((i.id === '(number)' && /[.+\-Ee]/.test(i.value)) ||
- (i.id === '-' && !i.right) ||
- i.id === '(string)' || i.id === '[' ||
- i.id === '{' || i.id === 'true' ||
- i.id === 'false' ||
- i.id === 'null' || i.id === 'undefined' ||
- i.id === 'Infinity') {
- warning("Use the array literal notation [].", token);
- }
- if (nexttoken.id !== ')') {
- error("Use the array literal notation [].", token);
- }
- }
- advance(')');
- }
- this.first = c;
- return this;
- case 'Number':
- case 'String':
- case 'Boolean':
- case 'Math':
- case 'JSON':
- warning("Do not use {a} as a constructor.", token, c.value);
- break;
- case 'Function':
- if (!option.evil) {
- warning("The Function constructor is eval.");
- }
- break;
- case 'Date':
- case 'RegExp':
- break;
- default:
- if (c.id !== 'function') {
- i = c.value.substr(0, 1);
- if (option.newcap && (i < 'A' || i > 'Z')) {
- warning(
- "A constructor name should start with an uppercase letter.",
- token);
- }
- }
- }
- } else {
- if (c.id !== '.' && c.id !== '[' && c.id !== '(') {
- warning("Bad constructor.", token);
- }
- }
- } else {
- warning("Weird construction. Delete 'new'.", this);
- }
- adjacent(token, nexttoken);
- if (nexttoken.id !== '(') {
- warning("Missing '()' invoking a constructor.");
- }
- this.first = c;
- return this;
- });
- syntax['new'].exps = true;
-
- infix('.', function (left, that) {
- adjacent(prevtoken, token);
- var m = identifier();
- if (typeof m === 'string') {
- countMember(m);
- }
- that.left = left;
- that.right = m;
- if (!option.evil && left && left.value === 'document' &&
- (m === 'write' || m === 'writeln')) {
- warning("document.write can be a form of eval.", left);
- } else if (option.adsafe) {
- if (left && left.value === 'ADSAFE') {
- if (m === 'id' || m === 'lib') {
- warning("ADsafe violation.", that);
- } else if (m === 'go') {
- if (xmode !== 'script') {
- warning("ADsafe violation.", that);
- } else if (adsafe_went || nexttoken.id !== '(' ||
- peek(0).id !== '(string)' ||
- peek(0).value !== adsafe_id ||
- peek(1).id !== ',') {
- error("ADsafe violation: go.", that);
- }
- adsafe_went = true;
- adsafe_may = false;
- }
- }
- }
- if (!option.evil && (m === 'eval' || m === 'execScript')) {
- warning('eval is evil.');
- } else if (option.safe) {
- for (;;) {
- if (banned[m] === true) {
- warning("ADsafe restricted word '{a}'.", token, m);
- }
- if (typeof predefined[left.value] !== 'boolean' ||
- nexttoken.id === '(') {
- break;
- }
- if (standard_member[m] === true) {
- if (nexttoken.id === '.') {
- warning("ADsafe violation.", that);
- }
- break;
- }
- if (nexttoken.id !== '.') {
- warning("ADsafe violation.", that);
- break;
- }
- advance('.');
- token.left = that;
- token.right = m;
- that = token;
- m = identifier();
- if (typeof m === 'string') {
- countMember(m);
- }
- }
- }
- return that;
- }, 160, true);
-
- infix('(', function (left, that) {
- adjacent(prevtoken, token);
- nospace();
- var n = 0,
- p = [];
- if (left) {
- if (left.type === '(identifier)') {
- if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) {
- if (left.value !== 'Number' && left.value !== 'String' &&
- left.value !== 'Boolean' &&
- left.value !== 'Date') {
- if (left.value === 'Math') {
- warning("Math is not a function.", left);
- } else if (option.newcap) {
- warning(
-"Missing 'new' prefix when invoking a constructor.", left);
- }
- }
- }
- } else if (left.id === '.') {
- if (option.safe && left.left.value === 'Math' &&
- left.right === 'random') {
- warning("ADsafe violation.", left);
- }
- }
- }
- if (nexttoken.id !== ')') {
- for (;;) {
- p[p.length] = parse(10);
- n += 1;
- if (nexttoken.id !== ',') {
- break;
- }
- comma();
- }
- }
- advance(')');
- if (option.immed && left.id === 'function' && nexttoken.id !== ')') {
- warning("Wrap the entire immediate function invocation in parens.",
- that);
- }
- nospace(prevtoken, token);
- if (typeof left === 'object') {
- if (left.value === 'parseInt' && n === 1) {
- warning("Missing radix parameter.", left);
- }
- if (!option.evil) {
- if (left.value === 'eval' || left.value === 'Function' ||
- left.value === 'execScript') {
- warning("eval is evil.", left);
- } else if (p[0] && p[0].id === '(string)' &&
- (left.value === 'setTimeout' ||
- left.value === 'setInterval')) {
- warning(
- "Implied eval is evil. Pass a function instead of a string.", left);
- }
- }
- if (!left.identifier && left.id !== '.' && left.id !== '[' &&
- left.id !== '(' && left.id !== '&&' && left.id !== '||' &&
- left.id !== '?') {
- warning("Bad invocation.", left);
- }
- }
- that.left = left;
- return that;
- }, 155, true).exps = true;
-
- prefix('(', function () {
- nospace();
- var v = parse(0);
- advance(')', this);
- nospace(prevtoken, token);
- if (option.immed && v.id === 'function') {
- if (nexttoken.id === '(') {
- warning(
-"Move the invocation into the parens that contain the function.", nexttoken);
- } else {
- warning(
-"Do not wrap function literals in parens unless they are to be immediately invoked.",
- this);
- }
- }
- return v;
- });
-
- infix('[', function (left, that) {
- nospace();
- var e = parse(0), s;
- if (e && e.type === '(string)') {
- if (option.safe && banned[e.value] === true) {
- warning("ADsafe restricted word '{a}'.", that, e.value);
- } else if (!option.evil &&
- (e.value === 'eval' || e.value === 'execScript')) {
- warning("eval is evil.", that);
- } else if (option.safe &&
- (e.value.charAt(0) === '_' || e.value.charAt(0) === '-')) {
- warning("ADsafe restricted subscript '{a}'.", that, e.value);
- }
- countMember(e.value);
- if (!option.sub && ix.test(e.value)) {
- s = syntax[e.value];
- if (!s || !s.reserved) {
- warning("['{a}'] is better written in dot notation.",
- e, e.value);
- }
- }
- } else if (!e || e.type !== '(number)' || e.value < 0) {
- if (option.safe) {
- warning('ADsafe subscripting.');
- }
- }
- advance(']', that);
- nospace(prevtoken, token);
- that.left = left;
- that.right = e;
- return that;
- }, 160, true);
-
- prefix('[', function () {
- var b = token.line !== nexttoken.line;
- this.first = [];
- if (b) {
- indent += option.indent;
- if (nexttoken.from === indent + option.indent) {
- indent += option.indent;
- }
- }
- while (nexttoken.id !== '(end)') {
- while (nexttoken.id === ',') {
- warning("Extra comma.");
- advance(',');
- }
- if (nexttoken.id === ']') {
- break;
- }
- if (b && token.line !== nexttoken.line) {
- indentation();
- }
- this.first.push(parse(10));
- if (nexttoken.id === ',') {
- comma();
- if (nexttoken.id === ']') {
- warning("Extra comma.", token);
- break;
- }
- } else {
- break;
- }
- }
- if (b) {
- indent -= option.indent;
- indentation();
- }
- advance(']', this);
- return this;
- }, 160);
-
- (function (x) {
- x.nud = function () {
- var b, i, s, seen = {};
- b = token.line !== nexttoken.line;
- if (b) {
- indent += option.indent;
- if (nexttoken.from === indent + option.indent) {
- indent += option.indent;
- }
- }
- for (;;) {
- if (nexttoken.id === '}') {
- break;
- }
- if (b) {
- indentation();
- }
- i = optionalidentifier(true);
- if (!i) {
- if (nexttoken.id === '(string)') {
- i = nexttoken.value;
- if (ix.test(i)) {
- s = syntax[i];
- }
- advance();
- } else if (nexttoken.id === '(number)') {
- i = nexttoken.value.toString();
- advance();
- } else {
- error("Expected '{a}' and instead saw '{b}'.",
- nexttoken, '}', nexttoken.value);
- }
- }
- if (seen[i] === true) {
- warning("Duplicate member '{a}'.", nexttoken, i);
- }
- seen[i] = true;
- countMember(i);
- advance(':');
- nonadjacent(token, nexttoken);
- parse(10);
- if (nexttoken.id === ',') {
- comma();
- if (nexttoken.id === ',' || nexttoken.id === '}') {
- warning("Extra comma.", token);
- }
- } else {
- break;
- }
- }
- if (b) {
- indent -= option.indent;
- indentation();
- }
- advance('}', this);
- return this;
- };
- x.fud = function () {
- error("Expected to see a statement and instead saw a block.", token);
- };
- }(delim('{')));
-
-
- function varstatement(prefix) {
-
-// JavaScript does not have block scope. It only has function scope. So,
-// declaring a variable in a block can have unexpected consequences.
-
- var id, name, value;
-
- if (funct['(onevar)'] && option.onevar) {
- warning("Too many var statements.");
- } else if (!funct['(global)']) {
- funct['(onevar)'] = true;
- }
- this.first = [];
- for (;;) {
- nonadjacent(token, nexttoken);
- id = identifier();
- if (funct['(global)'] && predefined[id] === false) {
- warning("Redefinition of '{a}'.", token, id);
- }
- addlabel(id, 'unused');
- if (prefix) {
- break;
- }
- name = token;
- this.first.push(token);
- if (nexttoken.id === '=') {
- nonadjacent(token, nexttoken);
- advance('=');
- nonadjacent(token, nexttoken);
- if (nexttoken.id === 'undefined') {
- warning("It is not necessary to initialize '{a}' to 'undefined'.", token, id);
- }
- if (peek(0).id === '=' && nexttoken.identifier) {
- error("Variable {a} was not declared correctly.",
- nexttoken, nexttoken.value);
- }
- value = parse(0);
- name.first = value;
- }
- if (nexttoken.id !== ',') {
- break;
- }
- comma();
- }
- return this;
- }
-
-
- stmt('var', varstatement).exps = true;
-
-
- function functionparams() {
- var i, t = nexttoken, p = [];
- advance('(');
- nospace();
- if (nexttoken.id === ')') {
- advance(')');
- nospace(prevtoken, token);
- return;
- }
- for (;;) {
- i = identifier();
- p.push(i);
- addlabel(i, 'parameter');
- if (nexttoken.id === ',') {
- comma();
- } else {
- advance(')', t);
- nospace(prevtoken, token);
- return p;
- }
- }
- }
-
- function doFunction(i) {
- var s = scope;
- scope = Object.create(s);
- funct = {
- '(name)' : i || '"' + anonname + '"',
- '(line)' : nexttoken.line,
- '(context)' : funct,
- '(breakage)': 0,
- '(loopage)' : 0,
- '(scope)' : scope
- };
- token.funct = funct;
- functions.push(funct);
- if (i) {
- addlabel(i, 'function');
- }
- funct['(params)'] = functionparams();
-
- block(false);
- scope = s;
- funct['(last)'] = token.line;
- funct = funct['(context)'];
- }
-
-
- blockstmt('function', function () {
- if (inblock) {
- warning(
-"Function statements cannot be placed in blocks. Use a function expression or move the statement to the top of the outer function.", token);
-
- }
- var i = identifier();
- adjacent(token, nexttoken);
- addlabel(i, 'unused');
- doFunction(i);
- if (nexttoken.id === '(' && nexttoken.line === token.line) {
- error(
-"Function statements are not invocable. Wrap the whole function invocation in parens.");
- }
- return this;
- });
-
- prefix('function', function () {
- var i = optionalidentifier();
- if (i) {
- adjacent(token, nexttoken);
- } else {
- nonadjacent(token, nexttoken);
- }
- doFunction(i);
- if (funct['(loopage)']) {
- warning("Don't make functions within a loop.");
- }
- return this;
- });
-
- blockstmt('if', function () {
- var t = nexttoken;
- advance('(');
- nonadjacent(this, t);
- nospace();
- parse(20);
- if (nexttoken.id === '=') {
- warning("Expected a conditional expression and instead saw an assignment.");
- advance('=');
- parse(20);
- }
- advance(')', t);
- nospace(prevtoken, token);
- block(true);
- if (nexttoken.id === 'else') {
- nonadjacent(token, nexttoken);
- advance('else');
- if (nexttoken.id === 'if' || nexttoken.id === 'switch') {
- statement(true);
- } else {
- block(true);
- }
- }
- return this;
- });
-
- blockstmt('try', function () {
- var b, e, s;
- if (option.adsafe) {
- warning("ADsafe try violation.", this);
- }
- block(false);
- if (nexttoken.id === 'catch') {
- advance('catch');
- nonadjacent(token, nexttoken);
- advance('(');
- s = scope;
- scope = Object.create(s);
- e = nexttoken.value;
- if (nexttoken.type !== '(identifier)') {
- warning("Expected an identifier and instead saw '{a}'.",
- nexttoken, e);
- } else {
- addlabel(e, 'exception');
- }
- advance();
- advance(')');
- block(false);
- b = true;
- scope = s;
- }
- if (nexttoken.id === 'finally') {
- advance('finally');
- block(false);
- return;
- } else if (!b) {
- error("Expected '{a}' and instead saw '{b}'.",
- nexttoken, 'catch', nexttoken.value);
- }
- return this;
- });
-
- blockstmt('while', function () {
- var t = nexttoken;
- funct['(breakage)'] += 1;
- funct['(loopage)'] += 1;
- advance('(');
- nonadjacent(this, t);
- nospace();
- parse(20);
- if (nexttoken.id === '=') {
- warning("Expected a conditional expression and instead saw an assignment.");
- advance('=');
- parse(20);
- }
- advance(')', t);
- nospace(prevtoken, token);
- block(true);
- funct['(breakage)'] -= 1;
- funct['(loopage)'] -= 1;
- return this;
- }).labelled = true;
-
- reserve('with');
-
- blockstmt('switch', function () {
- var t = nexttoken,
- g = false;
- funct['(breakage)'] += 1;
- advance('(');
- nonadjacent(this, t);
- nospace();
- this.condition = parse(20);
- advance(')', t);
- nospace(prevtoken, token);
- nonadjacent(token, nexttoken);
- t = nexttoken;
- advance('{');
- nonadjacent(token, nexttoken);
- indent += option.indent;
- this.cases = [];
- for (;;) {
- switch (nexttoken.id) {
- case 'case':
- switch (funct['(verb)']) {
- case 'break':
- case 'case':
- case 'continue':
- case 'return':
- case 'switch':
- case 'throw':
- break;
- default:
- warning(
- "Expected a 'break' statement before 'case'.",
- token);
- }
- indentation(-option.indent);
- advance('case');
- this.cases.push(parse(20));
- g = true;
- advance(':');
- funct['(verb)'] = 'case';
- break;
- case 'default':
- switch (funct['(verb)']) {
- case 'break':
- case 'continue':
- case 'return':
- case 'throw':
- break;
- default:
- warning(
- "Expected a 'break' statement before 'default'.",
- token);
- }
- indentation(-option.indent);
- advance('default');
- g = true;
- advance(':');
- break;
- case '}':
- indent -= option.indent;
- indentation();
- advance('}', t);
- if (this.cases.length === 1 || this.condition.id === 'true' ||
- this.condition.id === 'false') {
- warning("This 'switch' should be an 'if'.", this);
- }
- funct['(breakage)'] -= 1;
- funct['(verb)'] = undefined;
- return;
- case '(end)':
- error("Missing '{a}'.", nexttoken, '}');
- return;
- default:
- if (g) {
- switch (token.id) {
- case ',':
- error("Each value should have its own case label.");
- return;
- case ':':
- statements();
- break;
- default:
- error("Missing ':' on a case clause.", token);
- }
- } else {
- error("Expected '{a}' and instead saw '{b}'.",
- nexttoken, 'case', nexttoken.value);
- }
- }
- }
- }).labelled = true;
-
- stmt('debugger', function () {
- if (!option.debug) {
- warning("All 'debugger' statements should be removed.");
- }
- return this;
- }).exps = true;
-
- (function () {
- var x = stmt('do', function () {
- funct['(breakage)'] += 1;
- funct['(loopage)'] += 1;
- this.first = block(true);
- advance('while');
- var t = nexttoken;
- nonadjacent(token, t);
- advance('(');
- nospace();
- parse(20);
- if (nexttoken.id === '=') {
- warning("Expected a conditional expression and instead saw an assignment.");
- advance('=');
- parse(20);
- }
- advance(')', t);
- nospace(prevtoken, token);
- funct['(breakage)'] -= 1;
- funct['(loopage)'] -= 1;
- return this;
- });
- x.labelled = true;
- x.exps = true;
- }());
-
- blockstmt('for', function () {
- var f = option.forin, s, t = nexttoken;
- funct['(breakage)'] += 1;
- funct['(loopage)'] += 1;
- advance('(');
- nonadjacent(this, t);
- nospace();
- if (peek(nexttoken.id === 'var' ? 1 : 0).id === 'in') {
- if (nexttoken.id === 'var') {
- advance('var');
- varstatement(true);
- } else {
- switch (funct[nexttoken.value]) {
- case 'unused':
- funct[nexttoken.value] = 'var';
- break;
- case 'var':
- break;
- default:
- warning("Bad for in variable '{a}'.",
- nexttoken, nexttoken.value);
- }
- advance();
- }
- advance('in');
- parse(20);
- advance(')', t);
- s = block(true);
- if (!f && (s.length > 1 || typeof s[0] !== 'object' ||
- s[0].value !== 'if')) {
- warning("The body of a for in should be wrapped in an if statement to filter unwanted properties from the prototype.", this);
- }
- funct['(breakage)'] -= 1;
- funct['(loopage)'] -= 1;
- return this;
- } else {
- if (nexttoken.id !== ';') {
- if (nexttoken.id === 'var') {
- advance('var');
- varstatement();
- } else {
- for (;;) {
- parse(0, 'for');
- if (nexttoken.id !== ',') {
- break;
- }
- comma();
- }
- }
- }
- nolinebreak(token);
- advance(';');
- if (nexttoken.id !== ';') {
- parse(20);
- if (nexttoken.id === '=') {
- warning("Expected a conditional expression and instead saw an assignment.");
- advance('=');
- parse(20);
- }
- }
- nolinebreak(token);
- advance(';');
- if (nexttoken.id === ';') {
- error("Expected '{a}' and instead saw '{b}'.",
- nexttoken, ')', ';');
- }
- if (nexttoken.id !== ')') {
- for (;;) {
- parse(0, 'for');
- if (nexttoken.id !== ',') {
- break;
- }
- comma();
- }
- }
- advance(')', t);
- nospace(prevtoken, token);
- block(true);
- funct['(breakage)'] -= 1;
- funct['(loopage)'] -= 1;
- return this;
- }
- }).labelled = true;
-
-
- stmt('break', function () {
- var v = nexttoken.value;
- if (funct['(breakage)'] === 0) {
- warning("Unexpected '{a}'.", nexttoken, this.value);
- }
- nolinebreak(this);
- if (nexttoken.id !== ';') {
- if (token.line === nexttoken.line) {
- if (funct[v] !== 'label') {
- warning("'{a}' is not a statement label.", nexttoken, v);
- } else if (scope[v] !== funct) {
- warning("'{a}' is out of scope.", nexttoken, v);
- }
- this.first = nexttoken;
- advance();
- }
- }
- reachable('break');
- return this;
- }).exps = true;
-
-
- stmt('continue', function () {
- var v = nexttoken.value;
- if (funct['(breakage)'] === 0) {
- warning("Unexpected '{a}'.", nexttoken, this.value);
- }
- nolinebreak(this);
- if (nexttoken.id !== ';') {
- if (token.line === nexttoken.line) {
- if (funct[v] !== 'label') {
- warning("'{a}' is not a statement label.", nexttoken, v);
- } else if (scope[v] !== funct) {
- warning("'{a}' is out of scope.", nexttoken, v);
- }
- this.first = nexttoken;
- advance();
- }
- } else if (!funct['(loopage)']) {
- warning("Unexpected '{a}'.", nexttoken, this.value);
- }
- reachable('continue');
- return this;
- }).exps = true;
-
-
- stmt('return', function () {
- nolinebreak(this);
- if (nexttoken.id === '(regexp)') {
- warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator.");
- }
- if (nexttoken.id !== ';' && !nexttoken.reach) {
- nonadjacent(token, nexttoken);
- this.first = parse(20);
- }
- reachable('return');
- return this;
- }).exps = true;
-
-
- stmt('throw', function () {
- nolinebreak(this);
- nonadjacent(token, nexttoken);
- this.first = parse(20);
- reachable('throw');
- return this;
- }).exps = true;
-
- reserve('void');
-
-// Superfluous reserved words
-
- reserve('class');
- reserve('const');
- reserve('enum');
- reserve('export');
- reserve('extends');
- reserve('import');
- reserve('super');
-
- reserve('let');
- reserve('yield');
- reserve('implements');
- reserve('interface');
- reserve('package');
- reserve('private');
- reserve('protected');
- reserve('public');
- reserve('static');
-
- function jsonValue() {
-
- function jsonObject() {
- var o = {}, t = nexttoken;
- advance('{');
- if (nexttoken.id !== '}') {
- for (;;) {
- if (nexttoken.id === '(end)') {
- error("Missing '}' to match '{' from line {a}.",
- nexttoken, t.line);
- } else if (nexttoken.id === '}') {
- warning("Unexpected comma.", token);
- break;
- } else if (nexttoken.id === ',') {
- error("Unexpected comma.", nexttoken);
- } else if (nexttoken.id !== '(string)') {
- warning("Expected a string and instead saw {a}.",
- nexttoken, nexttoken.value);
- }
- if (o[nexttoken.value] === true) {
- warning("Duplicate key '{a}'.",
- nexttoken, nexttoken.value);
- } else if (nexttoken.value === '__proto__') {
- warning("Stupid key '{a}'.",
- nexttoken, nexttoken.value);
- } else {
- o[nexttoken.value] = true;
- }
- advance();
- advance(':');
- jsonValue();
- if (nexttoken.id !== ',') {
- break;
- }
- advance(',');
- }
- }
- advance('}');
- }
-
- function jsonArray() {
- var t = nexttoken;
- advance('[');
- if (nexttoken.id !== ']') {
- for (;;) {
- if (nexttoken.id === '(end)') {
- error("Missing ']' to match '[' from line {a}.",
- nexttoken, t.line);
- } else if (nexttoken.id === ']') {
- warning("Unexpected comma.", token);
- break;
- } else if (nexttoken.id === ',') {
- error("Unexpected comma.", nexttoken);
- }
- jsonValue();
- if (nexttoken.id !== ',') {
- break;
- }
- advance(',');
- }
- }
- advance(']');
- }
-
- switch (nexttoken.id) {
- case '{':
- jsonObject();
- break;
- case '[':
- jsonArray();
- break;
- case 'true':
- case 'false':
- case 'null':
- case '(number)':
- case '(string)':
- advance();
- break;
- case '-':
- advance('-');
- if (token.character !== nexttoken.from) {
- warning("Unexpected space after '-'.", token);
- }
- adjacent(token, nexttoken);
- advance('(number)');
- break;
- default:
- error("Expected a JSON value.", nexttoken);
- }
- }
-
-
-// The actual JSLINT function itself.
-
- var itself = function (s, o) {
- var a, i;
- JSLINT.errors = [];
- predefined = Object.create(standard);
- if (o) {
- a = o.predef;
- if (a instanceof Array) {
- for (i = 0; i < a.length; i += 1) {
- predefined[a[i]] = true;
- }
- }
- if (o.adsafe) {
- o.safe = true;
- }
- if (o.safe) {
- o.browser = false;
- o.css = false;
- o.debug = false;
- o.devel = false;
- o.eqeqeq = true;
- o.evil = false;
- o.forin = false;
- o.nomen = true;
- o.on = false;
- o.rhino = false;
- o.safe = true;
- o.sidebar = false;
- o.strict = true;
- o.sub = false;
- o.undef = true;
- o.widget = false;
- predefined.Date = null;
- predefined['eval'] = null;
- predefined.Function = null;
- predefined.Object = null;
- predefined.ADSAFE = false;
- predefined.lib = false;
- }
- option = o;
- } else {
- option = {};
- }
- option.indent = option.indent || 4;
- option.maxerr = option.maxerr || 50;
- adsafe_id = '';
- adsafe_may = false;
- adsafe_went = false;
- approved = {};
- if (option.approved) {
- for (i = 0; i < option.approved.length; i += 1) {
- approved[option.approved[i]] = option.approved[i];
- }
- } else {
- approved.test = 'test';
- }
- tab = '';
- for (i = 0; i < option.indent; i += 1) {
- tab += ' ';
- }
- indent = 1;
- global = Object.create(predefined);
- scope = global;
- funct = {
- '(global)': true,
- '(name)': '(global)',
- '(scope)': scope,
- '(breakage)': 0,
- '(loopage)': 0
- };
- functions = [funct];
- ids = {};
- urls = [];
- src = false;
- xmode = false;
- stack = null;
- member = {};
- membersOnly = null;
- implied = {};
- inblock = false;
- lookahead = [];
- jsonmode = false;
- warnings = 0;
- lex.init(s);
- prereg = true;
- strict_mode = false;
-
- prevtoken = token = nexttoken = syntax['(begin)'];
- assume();
-
- try {
- advance();
- if (nexttoken.value.charAt(0) === '<') {
- html();
- if (option.adsafe && !adsafe_went) {
- warning("ADsafe violation: Missing ADSAFE.go.", this);
- }
- } else {
- switch (nexttoken.id) {
- case '{':
- case '[':
- option.laxbreak = true;
- jsonmode = true;
- jsonValue();
- break;
- case '@':
- case '*':
- case '#':
- case '.':
- case ':':
- xmode = 'style';
- advance();
- if (token.id !== '@' || !nexttoken.identifier ||
- nexttoken.value !== 'charset' || token.line !== 1 ||
- token.from !== 1) {
- error('A css file should begin with @charset "UTF-8";');
- }
- advance();
- if (nexttoken.type !== '(string)' &&
- nexttoken.value !== 'UTF-8') {
- error('A css file should begin with @charset "UTF-8";');
- }
- advance();
- advance(';');
- styles();
- break;
-
- default:
- if (option.adsafe && option.fragment) {
- error("Expected '{a}' and instead saw '{b}'.",
- nexttoken, '<div>', nexttoken.value);
- }
- statements('lib');
- }
- }
- advance('(end)');
- } catch (e) {
- if (e) {
- JSLINT.errors.push({
- reason : e.message,
- line : e.line || nexttoken.line,
- character : e.character || nexttoken.from
- }, null);
- }
- }
- return JSLINT.errors.length === 0;
- };
-
- function is_array(o) {
- return Object.prototype.toString.apply(o) === '[object Array]';
- }
-
- function to_array(o) {
- var a = [], k;
- for (k in o) {
- if (is_own(o, k)) {
- a.push(k);
- }
- }
- return a;
- }
-
-// Data summary.
-
- itself.data = function () {
-
- var data = {functions: []}, fu, globals, implieds = [], f, i, j,
- members = [], n, unused = [], v;
- if (itself.errors.length) {
- data.errors = itself.errors;
- }
-
- if (jsonmode) {
- data.json = true;
- }
-
- for (n in implied) {
- if (is_own(implied, n)) {
- implieds.push({
- name: n,
- line: implied[n]
- });
- }
- }
- if (implieds.length > 0) {
- data.implieds = implieds;
- }
-
- if (urls.length > 0) {
- data.urls = urls;
- }
-
- globals = to_array(scope);
- if (globals.length > 0) {
- data.globals = globals;
- }
-
- for (i = 1; i < functions.length; i += 1) {
- f = functions[i];
- fu = {};
- for (j = 0; j < functionicity.length; j += 1) {
- fu[functionicity[j]] = [];
- }
- for (n in f) {
- if (is_own(f, n) && n.charAt(0) !== '(') {
- v = f[n];
- if (is_array(fu[v])) {
- fu[v].push(n);
- if (v === 'unused') {
- unused.push({
- name: n,
- line: f['(line)'],
- 'function': f['(name)']
- });
- }
- }
- }
- }
- for (j = 0; j < functionicity.length; j += 1) {
- if (fu[functionicity[j]].length === 0) {
- delete fu[functionicity[j]];
- }
- }
- fu.name = f['(name)'];
- fu.param = f['(params)'];
- fu.line = f['(line)'];
- fu.last = f['(last)'];
- data.functions.push(fu);
- }
-
- if (unused.length > 0) {
- data.unused = unused;
- }
-
- members = [];
- for (n in member) {
- if (typeof member[n] === 'number') {
- data.member = member;
- break;
- }
- }
-
- return data;
- };
-
- itself.report = function (option) {
- var data = itself.data();
-
- var a = [], c, e, err, f, i, k, l, m = '', n, o = [], s;
-
- function detail(h, array) {
- var b, i, singularity;
- if (array) {
- o.push('<div><i>' + h + '</i> ');
- array = array.sort();
- for (i = 0; i < array.length; i += 1) {
- if (array[i] !== singularity) {
- singularity = array[i];
- o.push((b ? ', ' : '') + singularity);
- b = true;
- }
- }
- o.push('</div>');
- }
- }
-
-
- if (data.errors || data.implieds || data.unused) {
- err = true;
- o.push('<div id=errors><i>Error:</i>');
- if (data.errors) {
- for (i = 0; i < data.errors.length; i += 1) {
- c = data.errors[i];
- if (c) {
- e = c.evidence || '';
- o.push('<p>Problem' + (isFinite(c.line) ? ' at line ' +
- c.line + ' character ' + c.character : '') +
- ': ' + c.reason.entityify() +
- '</p><p class=evidence>' +
- (e && (e.length > 80 ? e.slice(0, 77) + '...' :
- e).entityify()) + '</p>');
- }
- }
- }
-
- if (data.implieds) {
- s = [];
- for (i = 0; i < data.implieds.length; i += 1) {
- s[i] = '<code>' + data.implieds[i].name + '</code> <i>' +
- data.implieds[i].line + '</i>';
- }
- o.push('<p><i>Implied global:</i> ' + s.join(', ') + '</p>');
- }
-
- if (data.unused) {
- s = [];
- for (i = 0; i < data.unused.length; i += 1) {
- s[i] = '<code><u>' + data.unused[i].name + '</u></code> <i>' +
- data.unused[i].line + '</i> <code>' +
- data.unused[i]['function'] + '</code>';
- }
- o.push('<p><i>Unused variable:</i> ' + s.join(', ') + '</p>');
- }
- if (data.json) {
- o.push('<p>JSON: bad.</p>');
- }
- o.push('</div>');
- }
-
- if (!option) {
-
- o.push('<br><div id=functions>');
-
- if (data.urls) {
- detail("URLs<br>", data.urls, '<br>');
- }
-
- if (xmode === 'style') {
- o.push('<p>CSS.</p>');
- } else if (data.json && !err) {
- o.push('<p>JSON: good.</p>');
- } else if (data.globals) {
- o.push('<div><i>Global</i> ' +
- data.globals.sort().join(', ') + '</div>');
- } else {
- o.push('<div><i>No new global variables introduced.</i></div>');
- }
-
- for (i = 0; i < data.functions.length; i += 1) {
- f = data.functions[i];
-
- o.push('<br><div class=function><i>' + f.line + '-' +
- f.last + '</i> ' + (f.name || '') + '(' +
- (f.param ? f.param.join(', ') : '') + ')</div>');
- detail('<big><b>Unused</b></big>', f.unused);
- detail('Closure', f.closure);
- detail('Variable', f['var']);
- detail('Exception', f.exception);
- detail('Outer', f.outer);
- detail('Global', f.global);
- detail('Label', f.label);
- }
-
- if (data.member) {
- a = to_array(data.member);
- if (a.length) {
- a = a.sort();
- m = '<br><pre id=members>/*members ';
- l = 10;
- for (i = 0; i < a.length; i += 1) {
- k = a[i];
- n = k.name();
- if (l + n.length > 72) {
- o.push(m + '<br>');
- m = ' ';
- l = 1;
- }
- l += n.length + 2;
- if (data.member[k] === 1) {
- n = '<i>' + n + '</i>';
- }
- if (i < a.length - 1) {
- n += ', ';
- }
- m += n;
- }
- o.push(m + '<br>*/</pre>');
- }
- o.push('</div>');
- }
- }
- return o.join('');
- };
- itself.jslint = itself;
-
- itself.edition = '2010-02-20';
-
- return itself;
-
-}());
\ No newline at end of file
--- /dev/null
+// jslint.js
+// 2010-02-20
+
+/*
+Copyright (c) 2002 Douglas Crockford (www.JSLint.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/*
+ JSLINT is a global function. It takes two parameters.
+
+ var myResult = JSLINT(source, option);
+
+ The first parameter is either a string or an array of strings. If it is a
+ string, it will be split on '\n' or '\r'. If it is an array of strings, it
+ is assumed that each string represents one line. The source can be a
+ JavaScript text, or HTML text, or a Konfabulator text.
+
+ The second parameter is an optional object of options which control the
+ operation of JSLINT. Most of the options are booleans: They are all are
+ optional and have a default value of false.
+
+ If it checks out, JSLINT returns true. Otherwise, it returns false.
+
+ If false, you can inspect JSLINT.errors to find out the problems.
+ JSLINT.errors is an array of objects containing these members:
+
+ {
+ line : The line (relative to 0) at which the lint was found
+ character : The character (relative to 0) at which the lint was found
+ reason : The problem
+ evidence : The text line in which the problem occurred
+ raw : The raw message before the details were inserted
+ a : The first detail
+ b : The second detail
+ c : The third detail
+ d : The fourth detail
+ }
+
+ If a fatal error was found, a null will be the last element of the
+ JSLINT.errors array.
+
+ You can request a Function Report, which shows all of the functions
+ and the parameters and vars that they use. This can be used to find
+ implied global variables and other problems. The report is in HTML and
+ can be inserted in an HTML <body>.
+
+ var myReport = JSLINT.report(limited);
+
+ If limited is true, then the report will be limited to only errors.
+
+ You can request a data structure which contains JSLint's results.
+
+ var myData = JSLINT.data();
+
+ It returns a structure with this form:
+
+ {
+ errors: [
+ {
+ line: NUMBER,
+ character: NUMBER,
+ reason: STRING,
+ evidence: STRING
+ }
+ ],
+ functions: [
+ name: STRING,
+ line: NUMBER,
+ last: NUMBER,
+ param: [
+ STRING
+ ],
+ closure: [
+ STRING
+ ],
+ var: [
+ STRING
+ ],
+ exception: [
+ STRING
+ ],
+ outer: [
+ STRING
+ ],
+ unused: [
+ STRING
+ ],
+ global: [
+ STRING
+ ],
+ label: [
+ STRING
+ ]
+ ],
+ globals: [
+ STRING
+ ],
+ member: {
+ STRING: NUMBER
+ },
+ unuseds: [
+ {
+ name: STRING,
+ line: NUMBER
+ }
+ ],
+ implieds: [
+ {
+ name: STRING,
+ line: NUMBER
+ }
+ ],
+ urls: [
+ STRING
+ ],
+ json: BOOLEAN
+ }
+
+ Empty arrays will not be included.
+
+*/
+
+/*jslint
+ evil: true, nomen: false, onevar: false, regexp: false, strict: true
+*/
+
+/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%",
+ "(begin)", "(breakage)", "(context)", "(error)", "(global)",
+ "(identifier)", "(last)", "(line)", "(loopage)", "(name)", "(onevar)",
+ "(params)", "(scope)", "(verb)", "*", "+", "++", "-", "--", "\/",
+ "<", "<=", "==", "===", ">", ">=", ADSAFE, Array, Boolean,
+ COM, Canvas, CustomAnimation, Date, Debug, E, Error, EvalError,
+ FadeAnimation, Flash, FormField, Frame, Function, HotKey, Image, JSON,
+ LN10, LN2, LOG10E, LOG2E, MAX_VALUE, MIN_VALUE, Math, MenuItem,
+ MoveAnimation, NEGATIVE_INFINITY, Number, Object, Option, PI,
+ POSITIVE_INFINITY, Point, RangeError, Rectangle, ReferenceError, RegExp,
+ ResizeAnimation, RotateAnimation, SQRT1_2, SQRT2, ScrollBar, String,
+ Style, SyntaxError, System, Text, TextArea, Timer, TypeError, URIError,
+ URL, Web, Window, XMLDOM, XMLHttpRequest, "\\", a, abbr, acronym,
+ addEventListener, address, adsafe, alert, aliceblue, animator,
+ antiquewhite, appleScript, applet, apply, approved, aqua, aquamarine,
+ area, arguments, arity, autocomplete, azure, b, background,
+ "background-attachment", "background-color", "background-image",
+ "background-position", "background-repeat", base, bdo, beep, beige, big,
+ bisque, bitwise, black, blanchedalmond, block, blockquote, blue,
+ blueviolet, blur, body, border, "border-bottom", "border-bottom-color",
+ "border-bottom-style", "border-bottom-width", "border-collapse",
+ "border-color", "border-left", "border-left-color", "border-left-style",
+ "border-left-width", "border-right", "border-right-color",
+ "border-right-style", "border-right-width", "border-spacing",
+ "border-style", "border-top", "border-top-color", "border-top-style",
+ "border-top-width", "border-width", bottom, br, brown, browser,
+ burlywood, button, bytesToUIString, c, cadetblue, call, callee, caller,
+ canvas, cap, caption, "caption-side", cases, center, charAt, charCodeAt,
+ character, chartreuse, chocolate, chooseColor, chooseFile, chooseFolder,
+ cite, clear, clearInterval, clearTimeout, clip, close, closeWidget,
+ closed, closure, cm, code, col, colgroup, color, comment, condition,
+ confirm, console, constructor, content, convertPathToHFS,
+ convertPathToPlatform, coral, cornflowerblue, cornsilk,
+ "counter-increment", "counter-reset", create, crimson, css, cursor,
+ cyan, d, darkblue, darkcyan, darkgoldenrod, darkgray, darkgreen,
+ darkkhaki, darkmagenta, darkolivegreen, darkorange, darkorchid, darkred,
+ darksalmon, darkseagreen, darkslateblue, darkslategray, darkturquoise,
+ darkviolet, data, dd, debug, decodeURI, decodeURIComponent, deeppink,
+ deepskyblue, defaultStatus, defineClass, del, deserialize, devel, dfn,
+ dimension, dimgray, dir, direction, display, div, dl, document,
+ dodgerblue, dt, edition, else, em, embed, empty, "empty-cells",
+ encodeURI, encodeURIComponent, entityify, eqeqeq, errors, escape, eval,
+ event, evidence, evil, ex, exception, exec, exps, fieldset, filesystem,
+ firebrick, first, float, floor, floralwhite, focus, focusWidget, font,
+ "font-face", "font-family", "font-size", "font-size-adjust",
+ "font-stretch", "font-style", "font-variant", "font-weight",
+ forestgreen, forin, form, fragment, frame, frames, frameset, from,
+ fromCharCode, fuchsia, fud, funct, function, functions, g, gainsboro,
+ gc, getComputedStyle, ghostwhite, global, globals, gold, goldenrod,
+ gray, green, greenyellow, h1, h2, h3, h4, h5, h6, hasOwnProperty, head,
+ height, help, history, honeydew, hotpink, hr, html, i, iTunes, id,
+ identifier, iframe, img, immed, implieds, in, include, indent, indexOf,
+ indianred, indigo, init, input, ins, isAlpha, isApplicationRunning,
+ isDigit, isFinite, isNaN, ivory, join, jslint, json, kbd, khaki,
+ konfabulatorVersion, label, labelled, lang, last, lavender,
+ lavenderblush, lawngreen, laxbreak, lbp, led, left, legend,
+ lemonchiffon, length, "letter-spacing", li, lib, lightblue, lightcoral,
+ lightcyan, lightgoldenrodyellow, lightgreen, lightpink, lightsalmon,
+ lightseagreen, lightskyblue, lightslategray, lightsteelblue,
+ lightyellow, lime, limegreen, line, "line-height", linen, link,
+ "list-style", "list-style-image", "list-style-position",
+ "list-style-type", load, loadClass, location, log, m, magenta, map,
+ margin, "margin-bottom", "margin-left", "margin-right", "margin-top",
+ "marker-offset", maroon, match, "max-height", "max-width", maxerr, maxlen,
+ md5, media, mediumaquamarine, mediumblue, mediumorchid, mediumpurple,
+ mediumseagreen, mediumslateblue, mediumspringgreen, mediumturquoise,
+ mediumvioletred, member, menu, message, meta, midnightblue,
+ "min-height", "min-width", mintcream, mistyrose, mm, moccasin, moveBy,
+ moveTo, name, navajowhite, navigator, navy, new, newcap, noframes,
+ nomen, noscript, nud, object, ol, oldlace, olive, olivedrab, on,
+ onbeforeunload, onblur, onerror, onevar, onfocus, onload, onresize,
+ onunload, opacity, open, openURL, opener, opera, optgroup, option,
+ orange, orangered, orchid, outer, outline, "outline-color",
+ "outline-style", "outline-width", overflow, "overflow-x", "overflow-y",
+ p, padding, "padding-bottom", "padding-left", "padding-right",
+ "padding-top", page, "page-break-after", "page-break-before",
+ palegoldenrod, palegreen, paleturquoise, palevioletred, papayawhip,
+ param, parent, parseFloat, parseInt, passfail, pc, peachpuff, peru,
+ pink, play, plum, plusplus, pop, popupMenu, position, powderblue, pre,
+ predef, preferenceGroups, preferences, print, prompt, prototype, pt,
+ purple, push, px, q, quit, quotes, random, range, raw, reach, readFile,
+ readUrl, reason, red, regexp, reloadWidget, removeEventListener,
+ replace, report, reserved, resizeBy, resizeTo, resolvePath,
+ resumeUpdates, rhino, right, rosybrown, royalblue, runCommand,
+ runCommandInBg, saddlebrown, safe, salmon, samp, sandybrown, saveAs,
+ savePreferences, screen, script, scroll, scrollBy, scrollTo, seagreen,
+ seal, search, seashell, select, serialize, setInterval, setTimeout,
+ shift, showWidgetPreferences, sidebar, sienna, silver, skyblue,
+ slateblue, slategray, sleep, slice, small, snow, sort, span, spawn,
+ speak, split, springgreen, src, status, steelblue, strict, strong,
+ style, styleproperty, sub, substr, sup, supplant, suppressUpdates, sync,
+ system, table, "table-layout", tan, tbody, td, teal, tellWidget, test,
+ "text-align", "text-decoration", "text-indent", "text-shadow",
+ "text-transform", textarea, tfoot, th, thead, thistle, title,
+ toLowerCase, toString, toUpperCase, toint32, token, tomato, top, tr, tt,
+ turquoise, type, u, ul, undef, unescape, "unicode-bidi", unused,
+ unwatch, updateNow, urls, value, valueOf, var, version,
+ "vertical-align", violet, visibility, watch, wheat, white,
+ "white-space", whitesmoke, widget, width, "word-spacing", "word-wrap",
+ yahooCheckLogin, yahooLogin, yahooLogout, yellow, yellowgreen,
+ "z-index"
+*/
+
+
+// We build the application inside a function so that we produce only a single
+// global variable. The function will be invoked, its return value is the JSLINT
+// application itself.
+
+"use strict";
+
+var JSLINT = (function () {
+ var adsafe_id, // The widget's ADsafe id.
+ adsafe_may, // The widget may load approved scripts.
+ adsafe_went, // ADSAFE.go has been called.
+ anonname, // The guessed name for anonymous functions.
+ approved, // ADsafe approved urls.
+
+ atrule = {
+ media : true,
+ 'font-face': true,
+ page : true
+ },
+
+// These are operators that should not be used with the ! operator.
+
+ bang = {
+ '<': true,
+ '<=': true,
+ '==': true,
+ '===': true,
+ '!==': true,
+ '!=': true,
+ '>': true,
+ '>=': true,
+ '+': true,
+ '-': true,
+ '*': true,
+ '/': true,
+ '%': true
+ },
+
+// These are members that should not be permitted in the safe subset.
+
+ banned = { // the member names that ADsafe prohibits.
+ 'arguments' : true,
+ callee : true,
+ caller : true,
+ constructor : true,
+ 'eval' : true,
+ prototype : true,
+ unwatch : true,
+ valueOf : true,
+ watch : true
+ },
+
+
+// These are the JSLint boolean options.
+
+ boolOptions = {
+ adsafe : true, // if ADsafe should be enforced
+ bitwise : true, // if bitwise operators should not be allowed
+ browser : true, // if the standard browser globals should be predefined
+ cap : true, // if upper case HTML should be allowed
+ css : true, // if CSS workarounds should be tolerated
+ debug : true, // if debugger statements should be allowed
+ devel : true, // if logging should be allowed (console, alert, etc.)
+ eqeqeq : true, // if === should be required
+ evil : true, // if eval should be allowed
+ forin : true, // if for in statements must filter
+ fragment : true, // if HTML fragments should be allowed
+ immed : true, // if immediate invocations must be wrapped in parens
+ laxbreak : true, // if line breaks should not be checked
+ newcap : true, // if constructor names must be capitalized
+ nomen : true, // if names should be checked
+ on : true, // if HTML event handlers should be allowed
+ onevar : true, // if only one var statement per function should be allowed
+ passfail : true, // if the scan should stop on first error
+ plusplus : true, // if increment/decrement should not be allowed
+ regexp : true, // if the . should not be allowed in regexp literals
+ rhino : true, // if the Rhino environment globals should be predefined
+ undef : true, // if variables should be declared before used
+ safe : true, // if use of some browser features should be restricted
+ sidebar : true, // if the System object should be predefined
+ strict : true, // require the "use strict"; pragma
+ sub : true, // if all forms of subscript notation are tolerated
+ white : true, // if strict whitespace rules apply
+ widget : true // if the Yahoo Widgets globals should be predefined
+ },
+
+// browser contains a set of global names which are commonly provided by a
+// web browser environment.
+
+ browser = {
+ addEventListener: false,
+ blur : false,
+ clearInterval : false,
+ clearTimeout : false,
+ close : false,
+ closed : false,
+ defaultStatus : false,
+ document : false,
+ event : false,
+ focus : false,
+ frames : false,
+ getComputedStyle: false,
+ history : false,
+ Image : false,
+ length : false,
+ location : false,
+ moveBy : false,
+ moveTo : false,
+ name : false,
+ navigator : false,
+ onbeforeunload : true,
+ onblur : true,
+ onerror : true,
+ onfocus : true,
+ onload : true,
+ onresize : true,
+ onunload : true,
+ open : false,
+ opener : false,
+ Option : false,
+ parent : false,
+ print : false,
+ removeEventListener: false,
+ resizeBy : false,
+ resizeTo : false,
+ screen : false,
+ scroll : false,
+ scrollBy : false,
+ scrollTo : false,
+ setInterval : false,
+ setTimeout : false,
+ status : false,
+ top : false,
+ XMLHttpRequest : false
+ },
+
+ cssAttributeData,
+ cssAny,
+
+ cssColorData = {
+ "aliceblue" : true,
+ "antiquewhite" : true,
+ "aqua" : true,
+ "aquamarine" : true,
+ "azure" : true,
+ "beige" : true,
+ "bisque" : true,
+ "black" : true,
+ "blanchedalmond" : true,
+ "blue" : true,
+ "blueviolet" : true,
+ "brown" : true,
+ "burlywood" : true,
+ "cadetblue" : true,
+ "chartreuse" : true,
+ "chocolate" : true,
+ "coral" : true,
+ "cornflowerblue" : true,
+ "cornsilk" : true,
+ "crimson" : true,
+ "cyan" : true,
+ "darkblue" : true,
+ "darkcyan" : true,
+ "darkgoldenrod" : true,
+ "darkgray" : true,
+ "darkgreen" : true,
+ "darkkhaki" : true,
+ "darkmagenta" : true,
+ "darkolivegreen" : true,
+ "darkorange" : true,
+ "darkorchid" : true,
+ "darkred" : true,
+ "darksalmon" : true,
+ "darkseagreen" : true,
+ "darkslateblue" : true,
+ "darkslategray" : true,
+ "darkturquoise" : true,
+ "darkviolet" : true,
+ "deeppink" : true,
+ "deepskyblue" : true,
+ "dimgray" : true,
+ "dodgerblue" : true,
+ "firebrick" : true,
+ "floralwhite" : true,
+ "forestgreen" : true,
+ "fuchsia" : true,
+ "gainsboro" : true,
+ "ghostwhite" : true,
+ "gold" : true,
+ "goldenrod" : true,
+ "gray" : true,
+ "green" : true,
+ "greenyellow" : true,
+ "honeydew" : true,
+ "hotpink" : true,
+ "indianred" : true,
+ "indigo" : true,
+ "ivory" : true,
+ "khaki" : true,
+ "lavender" : true,
+ "lavenderblush" : true,
+ "lawngreen" : true,
+ "lemonchiffon" : true,
+ "lightblue" : true,
+ "lightcoral" : true,
+ "lightcyan" : true,
+ "lightgoldenrodyellow" : true,
+ "lightgreen" : true,
+ "lightpink" : true,
+ "lightsalmon" : true,
+ "lightseagreen" : true,
+ "lightskyblue" : true,
+ "lightslategray" : true,
+ "lightsteelblue" : true,
+ "lightyellow" : true,
+ "lime" : true,
+ "limegreen" : true,
+ "linen" : true,
+ "magenta" : true,
+ "maroon" : true,
+ "mediumaquamarine" : true,
+ "mediumblue" : true,
+ "mediumorchid" : true,
+ "mediumpurple" : true,
+ "mediumseagreen" : true,
+ "mediumslateblue" : true,
+ "mediumspringgreen" : true,
+ "mediumturquoise" : true,
+ "mediumvioletred" : true,
+ "midnightblue" : true,
+ "mintcream" : true,
+ "mistyrose" : true,
+ "moccasin" : true,
+ "navajowhite" : true,
+ "navy" : true,
+ "oldlace" : true,
+ "olive" : true,
+ "olivedrab" : true,
+ "orange" : true,
+ "orangered" : true,
+ "orchid" : true,
+ "palegoldenrod" : true,
+ "palegreen" : true,
+ "paleturquoise" : true,
+ "palevioletred" : true,
+ "papayawhip" : true,
+ "peachpuff" : true,
+ "peru" : true,
+ "pink" : true,
+ "plum" : true,
+ "powderblue" : true,
+ "purple" : true,
+ "red" : true,
+ "rosybrown" : true,
+ "royalblue" : true,
+ "saddlebrown" : true,
+ "salmon" : true,
+ "sandybrown" : true,
+ "seagreen" : true,
+ "seashell" : true,
+ "sienna" : true,
+ "silver" : true,
+ "skyblue" : true,
+ "slateblue" : true,
+ "slategray" : true,
+ "snow" : true,
+ "springgreen" : true,
+ "steelblue" : true,
+ "tan" : true,
+ "teal" : true,
+ "thistle" : true,
+ "tomato" : true,
+ "turquoise" : true,
+ "violet" : true,
+ "wheat" : true,
+ "white" : true,
+ "whitesmoke" : true,
+ "yellow" : true,
+ "yellowgreen" : true
+ },
+
+ cssBorderStyle,
+ cssBreak,
+
+ cssLengthData = {
+ '%': true,
+ 'cm': true,
+ 'em': true,
+ 'ex': true,
+ 'in': true,
+ 'mm': true,
+ 'pc': true,
+ 'pt': true,
+ 'px': true
+ },
+
+ cssOverflow,
+
+ devel = {
+ alert : false,
+ confirm : false,
+ console : false,
+ Debug : false,
+ opera : false,
+ prompt : false
+ },
+
+ escapes = {
+ '\b': '\\b',
+ '\t': '\\t',
+ '\n': '\\n',
+ '\f': '\\f',
+ '\r': '\\r',
+ '"' : '\\"',
+ '/' : '\\/',
+ '\\': '\\\\'
+ },
+
+ funct, // The current function
+
+ functionicity = [
+ 'closure', 'exception', 'global', 'label',
+ 'outer', 'unused', 'var'
+ ],
+
+ functions, // All of the functions
+
+ global, // The global scope
+ htmltag = {
+ a: {},
+ abbr: {},
+ acronym: {},
+ address: {},
+ applet: {},
+ area: {empty: true, parent: ' map '},
+ b: {},
+ base: {empty: true, parent: ' head '},
+ bdo: {},
+ big: {},
+ blockquote: {},
+ body: {parent: ' html noframes '},
+ br: {empty: true},
+ button: {},
+ canvas: {parent: ' body p div th td '},
+ caption: {parent: ' table '},
+ center: {},
+ cite: {},
+ code: {},
+ col: {empty: true, parent: ' table colgroup '},
+ colgroup: {parent: ' table '},
+ dd: {parent: ' dl '},
+ del: {},
+ dfn: {},
+ dir: {},
+ div: {},
+ dl: {},
+ dt: {parent: ' dl '},
+ em: {},
+ embed: {},
+ fieldset: {},
+ font: {},
+ form: {},
+ frame: {empty: true, parent: ' frameset '},
+ frameset: {parent: ' html frameset '},
+ h1: {},
+ h2: {},
+ h3: {},
+ h4: {},
+ h5: {},
+ h6: {},
+ head: {parent: ' html '},
+ html: {parent: '*'},
+ hr: {empty: true},
+ i: {},
+ iframe: {},
+ img: {empty: true},
+ input: {empty: true},
+ ins: {},
+ kbd: {},
+ label: {},
+ legend: {parent: ' fieldset '},
+ li: {parent: ' dir menu ol ul '},
+ link: {empty: true, parent: ' head '},
+ map: {},
+ menu: {},
+ meta: {empty: true, parent: ' head noframes noscript '},
+ noframes: {parent: ' html body '},
+ noscript: {parent: ' body head noframes '},
+ object: {},
+ ol: {},
+ optgroup: {parent: ' select '},
+ option: {parent: ' optgroup select '},
+ p: {},
+ param: {empty: true, parent: ' applet object '},
+ pre: {},
+ q: {},
+ samp: {},
+ script: {empty: true, parent: ' body div frame head iframe p pre span '},
+ select: {},
+ small: {},
+ span: {},
+ strong: {},
+ style: {parent: ' head ', empty: true},
+ sub: {},
+ sup: {},
+ table: {},
+ tbody: {parent: ' table '},
+ td: {parent: ' tr '},
+ textarea: {},
+ tfoot: {parent: ' table '},
+ th: {parent: ' tr '},
+ thead: {parent: ' table '},
+ title: {parent: ' head '},
+ tr: {parent: ' table tbody thead tfoot '},
+ tt: {},
+ u: {},
+ ul: {},
+ 'var': {}
+ },
+
+ ids, // HTML ids
+ implied, // Implied globals
+ inblock,
+ indent,
+ jsonmode,
+ lines,
+ lookahead,
+ member,
+ membersOnly,
+ nexttoken,
+ noreach,
+ option,
+ predefined, // Global variables defined by option
+ prereg,
+ prevtoken,
+
+ rhino = {
+ defineClass : false,
+ deserialize : false,
+ gc : false,
+ help : false,
+ load : false,
+ loadClass : false,
+ print : false,
+ quit : false,
+ readFile : false,
+ readUrl : false,
+ runCommand : false,
+ seal : false,
+ serialize : false,
+ spawn : false,
+ sync : false,
+ toint32 : false,
+ version : false
+ },
+
+ scope, // The current scope
+
+ sidebar = {
+ System : false
+ },
+
+ src,
+ stack,
+
+// standard contains the global names that are provided by the
+// ECMAScript standard.
+
+ standard = {
+ Array : false,
+ Boolean : false,
+ Date : false,
+ decodeURI : false,
+ decodeURIComponent : false,
+ encodeURI : false,
+ encodeURIComponent : false,
+ Error : false,
+ 'eval' : false,
+ EvalError : false,
+ Function : false,
+ hasOwnProperty : false,
+ isFinite : false,
+ isNaN : false,
+ JSON : false,
+ Math : false,
+ Number : false,
+ Object : false,
+ parseInt : false,
+ parseFloat : false,
+ RangeError : false,
+ ReferenceError : false,
+ RegExp : false,
+ String : false,
+ SyntaxError : false,
+ TypeError : false,
+ URIError : false
+ },
+
+ standard_member = {
+ E : true,
+ LN2 : true,
+ LN10 : true,
+ LOG2E : true,
+ LOG10E : true,
+ PI : true,
+ SQRT1_2 : true,
+ SQRT2 : true,
+ MAX_VALUE : true,
+ MIN_VALUE : true,
+ NEGATIVE_INFINITY : true,
+ POSITIVE_INFINITY : true
+ },
+
+ strict_mode,
+ syntax = {},
+ tab,
+ token,
+ urls,
+ warnings,
+
+// widget contains the global names which are provided to a Yahoo
+// (fna Konfabulator) widget.
+
+ widget = {
+ alert : true,
+ animator : true,
+ appleScript : true,
+ beep : true,
+ bytesToUIString : true,
+ Canvas : true,
+ chooseColor : true,
+ chooseFile : true,
+ chooseFolder : true,
+ closeWidget : true,
+ COM : true,
+ convertPathToHFS : true,
+ convertPathToPlatform : true,
+ CustomAnimation : true,
+ escape : true,
+ FadeAnimation : true,
+ filesystem : true,
+ Flash : true,
+ focusWidget : true,
+ form : true,
+ FormField : true,
+ Frame : true,
+ HotKey : true,
+ Image : true,
+ include : true,
+ isApplicationRunning : true,
+ iTunes : true,
+ konfabulatorVersion : true,
+ log : true,
+ md5 : true,
+ MenuItem : true,
+ MoveAnimation : true,
+ openURL : true,
+ play : true,
+ Point : true,
+ popupMenu : true,
+ preferenceGroups : true,
+ preferences : true,
+ print : true,
+ prompt : true,
+ random : true,
+ Rectangle : true,
+ reloadWidget : true,
+ ResizeAnimation : true,
+ resolvePath : true,
+ resumeUpdates : true,
+ RotateAnimation : true,
+ runCommand : true,
+ runCommandInBg : true,
+ saveAs : true,
+ savePreferences : true,
+ screen : true,
+ ScrollBar : true,
+ showWidgetPreferences : true,
+ sleep : true,
+ speak : true,
+ Style : true,
+ suppressUpdates : true,
+ system : true,
+ tellWidget : true,
+ Text : true,
+ TextArea : true,
+ Timer : true,
+ unescape : true,
+ updateNow : true,
+ URL : true,
+ Web : true,
+ widget : true,
+ Window : true,
+ XMLDOM : true,
+ XMLHttpRequest : true,
+ yahooCheckLogin : true,
+ yahooLogin : true,
+ yahooLogout : true
+ },
+
+// xmode is used to adapt to the exceptions in html parsing.
+// It can have these states:
+// false .js script file
+// html
+// outer
+// script
+// style
+// scriptstring
+// styleproperty
+
+ xmode,
+ xquote,
+
+// unsafe comment or string
+ ax = /@cc|<\/?|script|\]*s\]|<\s*!|</i,
+// unsafe characters that are silently deleted by one or more browsers
+ cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
+// token
+ tx = /^\s*([(){}\[.,:;'"~\?\]#@]|==?=?|\/(\*(jslint|members?|global)?|=|\/)?|\*[\/=]?|\+[+=]?|-[\-=]?|%=?|&[&=]?|\|[|=]?|>>?>?=?|<([\/=!]|\!(\[|--)?|<=?)?|\^=?|\!=?=?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+([xX][0-9a-fA-F]+|\.[0-9]*)?([eE][+\-]?[0-9]+)?)/,
+// html token
+//////// hx = /^\s*(['"=>\/&#]|<(?:\/|\!(?:--)?)?|[a-zA-Z][a-zA-Z0-9_\-]*|[0-9]+|--|.)/,
+ hx = /^\s*(['"=>\/&#]|<(?:\/|\!(?:--)?)?|[a-zA-Z][a-zA-Z0-9_\-]*|[0-9]+|--)/,
+// characters in strings that need escapement
+ nx = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/,
+ nxg = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+// outer html token
+ ox = /[>&]|<[\/!]?|--/,
+// star slash
+ lx = /\*\/|\/\*/,
+// identifier
+ ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/,
+// javascript url
+ jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i,
+// url badness
+ ux = /&|\+|\u00AD|\.\.|\/\*|%[^;]|base64|url|expression|data|mailto/i,
+// style
+ sx = /^\s*([{:#%.=,>+\[\]@()"';]|\*=?|\$=|\|=|\^=|~=|[a-zA-Z_][a-zA-Z0-9_\-]*|[0-9]+|<\/|\/\*)/,
+ ssx = /^\s*([@#!"'};:\-%.=,+\[\]()*_]|[a-zA-Z][a-zA-Z0-9._\-]*|\/\*?|\d+(?:\.\d+)?|<\/)/,
+// attributes characters
+ qx = /[^a-zA-Z0-9-_\/ ]/,
+// query characters for ids
+ dx = /[\[\]\/\\"'*<>.&:(){}+=#]/,
+
+ rx = {
+ outer: hx,
+ html: hx,
+ style: sx,
+ styleproperty: ssx
+ };
+
+ function F() {}
+
+ if (typeof Object.create !== 'function') {
+ Object.create = function (o) {
+ F.prototype = o;
+ return new F();
+ };
+ }
+
+
+ function is_own(object, name) {
+ return Object.prototype.hasOwnProperty.call(object, name);
+ }
+
+
+ function combine(t, o) {
+ var n;
+ for (n in o) {
+ if (is_own(o, n)) {
+ t[n] = o[n];
+ }
+ }
+ }
+
+ String.prototype.entityify = function () {
+ return this.
+ replace(/&/g, '&').
+ replace(/</g, '<').
+ replace(/>/g, '>');
+ };
+
+ String.prototype.isAlpha = function () {
+ return (this >= 'a' && this <= 'z\uffff') ||
+ (this >= 'A' && this <= 'Z\uffff');
+ };
+
+
+ String.prototype.isDigit = function () {
+ return (this >= '0' && this <= '9');
+ };
+
+
+ String.prototype.supplant = function (o) {
+ return this.replace(/\{([^{}]*)\}/g, function (a, b) {
+ var r = o[b];
+ return typeof r === 'string' || typeof r === 'number' ? r : a;
+ });
+ };
+
+ String.prototype.name = function () {
+
+// If the string looks like an identifier, then we can return it as is.
+// If the string contains no control characters, no quote characters, and no
+// backslash characters, then we can simply slap some quotes around it.
+// Otherwise we must also replace the offending characters with safe
+// sequences.
+
+ if (ix.test(this)) {
+ return this;
+ }
+ if (nx.test(this)) {
+ return '"' + this.replace(nxg, function (a) {
+ var c = escapes[a];
+ if (c) {
+ return c;
+ }
+ return '\\u' + ('0000' + a.charCodeAt().toString(16)).slice(-4);
+ }) + '"';
+ }
+ return '"' + this + '"';
+ };
+
+
+ function assume() {
+ if (!option.safe) {
+ if (option.rhino) {
+ combine(predefined, rhino);
+ }
+ if (option.devel) {
+ combine(predefined, devel);
+ }
+ if (option.browser || option.sidebar) {
+ combine(predefined, browser);
+ }
+ if (option.sidebar) {
+ combine(predefined, sidebar);
+ }
+ if (option.widget) {
+ combine(predefined, widget);
+ }
+ }
+ }
+
+
+// Produce an error warning.
+
+ function quit(m, l, ch) {
+ throw {
+ name: 'JSLintError',
+ line: l,
+ character: ch,
+ message: m + " (" + Math.floor((l / lines.length) * 100) +
+ "% scanned)."
+ };
+ }
+
+ function warning(m, t, a, b, c, d) {
+ var ch, l, w;
+ t = t || nexttoken;
+ if (t.id === '(end)') { // `~
+ t = token;
+ }
+ l = t.line || 0;
+ ch = t.from || 0;
+ w = {
+ id: '(error)',
+ raw: m,
+ evidence: lines[l - 1] || '',
+ line: l,
+ character: ch,
+ a: a,
+ b: b,
+ c: c,
+ d: d
+ };
+ w.reason = m.supplant(w);
+ JSLINT.errors.push(w);
+ if (option.passfail) {
+ quit('Stopping. ', l, ch);
+ }
+ warnings += 1;
+ if (warnings >= option.maxerr) {
+ quit("Too many errors.", l, ch);
+ }
+ return w;
+ }
+
+ function warningAt(m, l, ch, a, b, c, d) {
+ return warning(m, {
+ line: l,
+ from: ch
+ }, a, b, c, d);
+ }
+
+ function error(m, t, a, b, c, d) {
+ var w = warning(m, t, a, b, c, d);
+ quit("Stopping, unable to continue.", w.line, w.character);
+ }
+
+ function errorAt(m, l, ch, a, b, c, d) {
+ return error(m, {
+ line: l,
+ from: ch
+ }, a, b, c, d);
+ }
+
+
+
+// lexical analysis
+
+ var lex = (function lex() {
+ var character, from, line, s;
+
+// Private lex methods
+
+ function nextLine() {
+ var at;
+ if (line >= lines.length) {
+ return false;
+ }
+ character = 1;
+ s = lines[line];
+ line += 1;
+ at = s.search(/ \t/);
+ if (at >= 0) {
+ warningAt("Mixed spaces and tabs.", line, at + 1);
+ }
+ s = s.replace(/\t/g, tab);
+ at = s.search(cx);
+ if (at >= 0) {
+ warningAt("Unsafe character.", line, at);
+ }
+ if (option.maxlen && option.maxlen < s.length) {
+ warningAt("Line too long.", line, s.length);
+ }
+ return true;
+ }
+
+// Produce a token object. The token inherits from a syntax symbol.
+
+ function it(type, value) {
+ var i, t;
+ if (type === '(color)') {
+ t = {type: type};
+ } else if (type === '(punctuator)' ||
+ (type === '(identifier)' && is_own(syntax, value))) {
+ t = syntax[value] || syntax['(error)'];
+ } else {
+ t = syntax[type];
+ }
+ t = Object.create(t);
+ if (type === '(string)' || type === '(range)') {
+ if (jx.test(value)) {
+ warningAt("Script URL.", line, from);
+ }
+ }
+ if (type === '(identifier)') {
+ t.identifier = true;
+ if (value === '__iterator__' || value === '__proto__') {
+ errorAt("Reserved name '{a}'.",
+ line, from, value);
+ } else if (option.nomen &&
+ (value.charAt(0) === '_' ||
+ value.charAt(value.length - 1) === '_')) {
+ warningAt("Unexpected {a} in '{b}'.", line, from,
+ "dangling '_'", value);
+ }
+ }
+ t.value = value;
+ t.line = line;
+ t.character = character;
+ t.from = from;
+ i = t.id;
+ if (i !== '(endline)') {
+ prereg = i &&
+ (('(,=:[!&|?{};'.indexOf(i.charAt(i.length - 1)) >= 0) ||
+ i === 'return');
+ }
+ return t;
+ }
+
+// Public lex methods
+
+ return {
+ init: function (source) {
+ if (typeof source === 'string') {
+ lines = source.
+ replace(/\r\n/g, '\n').
+ replace(/\r/g, '\n').
+ split('\n');
+ } else {
+ lines = source;
+ }
+ line = 0;
+ nextLine();
+ from = 1;
+ },
+
+ range: function (begin, end) {
+ var c, value = '';
+ from = character;
+ if (s.charAt(0) !== begin) {
+ errorAt("Expected '{a}' and instead saw '{b}'.",
+ line, character, begin, s.charAt(0));
+ }
+ for (;;) {
+ s = s.slice(1);
+ character += 1;
+ c = s.charAt(0);
+ switch (c) {
+ case '':
+ errorAt("Missing '{a}'.", line, character, c);
+ break;
+ case end:
+ s = s.slice(1);
+ character += 1;
+ return it('(range)', value);
+ case xquote:
+ case '\\':
+ warningAt("Unexpected '{a}'.", line, character, c);
+ }
+ value += c;
+ }
+
+ },
+
+// token -- this is called by advance to get the next token.
+
+ token: function () {
+ var b, c, captures, d, depth, high, i, l, low, q, t;
+
+ function match(x) {
+ var r = x.exec(s), r1;
+ if (r) {
+ l = r[0].length;
+ r1 = r[1];
+ c = r1.charAt(0);
+ s = s.substr(l);
+ from = character + l - r1.length;
+ character += l;
+ return r1;
+ }
+ }
+
+ function string(x) {
+ var c, j, r = '';
+
+ if (jsonmode && x !== '"') {
+ warningAt("Strings must use doublequote.",
+ line, character);
+ }
+
+ if (xquote === x || (xmode === 'scriptstring' && !xquote)) {
+ return it('(punctuator)', x);
+ }
+
+ function esc(n) {
+ var i = parseInt(s.substr(j + 1, n), 16);
+ j += n;
+ if (i >= 32 && i <= 126 &&
+ i !== 34 && i !== 92 && i !== 39) {
+ warningAt("Unnecessary escapement.", line, character);
+ }
+ character += n;
+ c = String.fromCharCode(i);
+ }
+ j = 0;
+ for (;;) {
+ while (j >= s.length) {
+ j = 0;
+ if (xmode !== 'html' || !nextLine()) {
+ errorAt("Unclosed string.", line, from);
+ }
+ }
+ c = s.charAt(j);
+ if (c === x) {
+ character += 1;
+ s = s.substr(j + 1);
+ return it('(string)', r, x);
+ }
+ if (c < ' ') {
+ if (c === '\n' || c === '\r') {
+ break;
+ }
+ warningAt("Control character in string: {a}.",
+ line, character + j, s.slice(0, j));
+ } else if (c === xquote) {
+ warningAt("Bad HTML string", line, character + j);
+ } else if (c === '<') {
+ if (option.safe && xmode === 'html') {
+ warningAt("ADsafe string violation.",
+ line, character + j);
+ } else if (s.charAt(j + 1) === '/' && (xmode || option.safe)) {
+ warningAt("Expected '<\\/' and instead saw '</'.", line, character);
+ } else if (s.charAt(j + 1) === '!' && (xmode || option.safe)) {
+ warningAt("Unexpected '<!' in a string.", line, character);
+ }
+ } else if (c === '\\') {
+ if (xmode === 'html') {
+ if (option.safe) {
+ warningAt("ADsafe string violation.",
+ line, character + j);
+ }
+ } else if (xmode === 'styleproperty') {
+ j += 1;
+ character += 1;
+ c = s.charAt(j);
+ if (c !== x) {
+ warningAt("Escapement in style string.",
+ line, character + j);
+ }
+ } else {
+ j += 1;
+ character += 1;
+ c = s.charAt(j);
+ switch (c) {
+ case xquote:
+ warningAt("Bad HTML string", line,
+ character + j);
+ break;
+ case '\\':
+ case '\'':
+ case '"':
+ case '/':
+ break;
+ case 'b':
+ c = '\b';
+ break;
+ case 'f':
+ c = '\f';
+ break;
+ case 'n':
+ c = '\n';
+ break;
+ case 'r':
+ c = '\r';
+ break;
+ case 't':
+ c = '\t';
+ break;
+ case 'u':
+ esc(4);
+ break;
+ case 'v':
+ c = '\v';
+ break;
+ case 'x':
+ if (jsonmode) {
+ warningAt("Avoid \\x-.", line, character);
+ }
+ esc(2);
+ break;
+ default:
+ warningAt("Bad escapement.", line, character);
+ }
+ }
+ }
+ r += c;
+ character += 1;
+ j += 1;
+ }
+ }
+
+ for (;;) {
+ if (!s) {
+ return it(nextLine() ? '(endline)' : '(end)', '');
+ }
+ while (xmode === 'outer') {
+ i = s.search(ox);
+ if (i === 0) {
+ break;
+ } else if (i > 0) {
+ character += 1;
+ s = s.slice(i);
+ break;
+ } else {
+ if (!nextLine()) {
+ return it('(end)', '');
+ }
+ }
+ }
+// t = match(rx[xmode] || tx);
+// if (!t) {
+// if (xmode === 'html') {
+// return it('(error)', s.charAt(0));
+// } else {
+// t = '';
+// c = '';
+// while (s && s < '!') {
+// s = s.substr(1);
+// }
+// if (s) {
+// errorAt("Unexpected '{a}'.",
+// line, character, s.substr(0, 1));
+// }
+// }
+ t = match(rx[xmode] || tx);
+ if (!t) {
+ t = '';
+ c = '';
+ while (s && s < '!') {
+ s = s.substr(1);
+ }
+ if (s) {
+ if (xmode === 'html') {
+ return it('(error)', s.charAt(0));
+ } else {
+ errorAt("Unexpected '{a}'.",
+ line, character, s.substr(0, 1));
+ }
+ }
+ } else {
+
+ // identifier
+
+ if (c.isAlpha() || c === '_' || c === '$') {
+ return it('(identifier)', t);
+ }
+
+ // number
+
+ if (c.isDigit()) {
+ if (xmode !== 'style' && !isFinite(Number(t))) {
+ warningAt("Bad number '{a}'.",
+ line, character, t);
+ }
+ if (xmode !== 'style' &&
+ xmode !== 'styleproperty' &&
+ s.substr(0, 1).isAlpha()) {
+ warningAt("Missing space after '{a}'.",
+ line, character, t);
+ }
+ if (c === '0') {
+ d = t.substr(1, 1);
+ if (d.isDigit()) {
+ if (token.id !== '.' && xmode !== 'styleproperty') {
+ warningAt("Don't use extra leading zeros '{a}'.",
+ line, character, t);
+ }
+ } else if (jsonmode && (d === 'x' || d === 'X')) {
+ warningAt("Avoid 0x-. '{a}'.",
+ line, character, t);
+ }
+ }
+ if (t.substr(t.length - 1) === '.') {
+ warningAt(
+ "A trailing decimal point can be confused with a dot '{a}'.",
+ line, character, t);
+ }
+ return it('(number)', t);
+ }
+ switch (t) {
+
+ // string
+
+ case '"':
+ case "'":
+ return string(t);
+
+ // // comment
+
+ case '//':
+ if (src || (xmode && xmode !== 'script')) {
+ warningAt("Unexpected comment.", line, character);
+ } else if (xmode === 'script' && /<\s*\//i.test(s)) {
+ warningAt("Unexpected <\/ in comment.", line, character);
+ } else if ((option.safe || xmode === 'script') && ax.test(s)) {
+ warningAt("Dangerous comment.", line, character);
+ }
+ s = '';
+ token.comment = true;
+ break;
+
+ // /* comment
+
+ case '/*':
+ if (src || (xmode && xmode !== 'script' && xmode !== 'style' && xmode !== 'styleproperty')) {
+ warningAt("Unexpected comment.", line, character);
+ }
+ if (option.safe && ax.test(s)) {
+ warningAt("ADsafe comment violation.", line, character);
+ }
+ for (;;) {
+ i = s.search(lx);
+ if (i >= 0) {
+ break;
+ }
+ if (!nextLine()) {
+ errorAt("Unclosed comment.", line, character);
+ } else {
+ if (option.safe && ax.test(s)) {
+ warningAt("ADsafe comment violation.", line, character);
+ }
+ }
+ }
+ character += i + 2;
+ if (s.substr(i, 1) === '/') {
+ errorAt("Nested comment.", line, character);
+ }
+ s = s.substr(i + 2);
+ token.comment = true;
+ break;
+
+ // /*members /*jslint /*global
+
+ case '/*members':
+ case '/*member':
+ case '/*jslint':
+ case '/*global':
+ case '*/':
+ return {
+ value: t,
+ type: 'special',
+ line: line,
+ character: character,
+ from: from
+ };
+
+ case '':
+ break;
+ // /
+ case '/':
+ if (token.id === '/=') {
+ errorAt(
+"A regular expression literal can be confused with '/='.", line, from);
+ }
+ if (prereg) {
+ depth = 0;
+ captures = 0;
+ l = 0;
+ for (;;) {
+ b = true;
+ c = s.charAt(l);
+ l += 1;
+ switch (c) {
+ case '':
+ errorAt("Unclosed regular expression.", line, from);
+ return;
+ case '/':
+ if (depth > 0) {
+ warningAt("Unescaped '{a}'.", line, from + l, '/');
+ }
+ c = s.substr(0, l - 1);
+ q = {
+ g: true,
+ i: true,
+ m: true
+ };
+ while (q[s.charAt(l)] === true) {
+ q[s.charAt(l)] = false;
+ l += 1;
+ }
+ character += l;
+ s = s.substr(l);
+ q = s.charAt(0);
+ if (q === '/' || q === '*') {
+ errorAt("Confusing regular expression.", line, from);
+ }
+ return it('(regexp)', c);
+ case '\\':
+ c = s.charAt(l);
+ if (c < ' ') {
+ warningAt("Unexpected control character in regular expression.", line, from + l);
+ } else if (c === '<') {
+ warningAt("Unexpected escaped character '{a}' in regular expression.", line, from + l, c);
+ }
+ l += 1;
+ break;
+ case '(':
+ depth += 1;
+ b = false;
+ if (s.charAt(l) === '?') {
+ l += 1;
+ switch (s.charAt(l)) {
+ case ':':
+ case '=':
+ case '!':
+ l += 1;
+ break;
+ default:
+ warningAt("Expected '{a}' and instead saw '{b}'.", line, from + l, ':', s.charAt(l));
+ }
+ } else {
+ captures += 1;
+ }
+ break;
+ case '|':
+ b = false;
+ break;
+ case ')':
+ if (depth === 0) {
+ warningAt("Unescaped '{a}'.", line, from + l, ')');
+ } else {
+ depth -= 1;
+ }
+ break;
+ case ' ':
+ q = 1;
+ while (s.charAt(l) === ' ') {
+ l += 1;
+ q += 1;
+ }
+ if (q > 1) {
+ warningAt("Spaces are hard to count. Use {{a}}.", line, from + l, q);
+ }
+ break;
+ case '[':
+ c = s.charAt(l);
+ if (c === '^') {
+ l += 1;
+ if (option.regexp) {
+ warningAt("Insecure '{a}'.", line, from + l, c);
+ }
+ }
+ q = false;
+ if (c === ']') {
+ warningAt("Empty class.", line, from + l - 1);
+ q = true;
+ }
+ klass: do {
+ c = s.charAt(l);
+ l += 1;
+ switch (c) {
+ case '[':
+ case '^':
+ warningAt("Unescaped '{a}'.", line, from + l, c);
+ q = true;
+ break;
+ case '-':
+ if (q) {
+ q = false;
+ } else {
+ warningAt("Unescaped '{a}'.", line, from + l, '-');
+ q = true;
+ }
+ break;
+ case ']':
+ if (!q) {
+ warningAt("Unescaped '{a}'.", line, from + l - 1, '-');
+ }
+ break klass;
+ case '\\':
+ c = s.charAt(l);
+ if (c < ' ') {
+ warningAt("Unexpected control character in regular expression.", line, from + l);
+ } else if (c === '<') {
+ warningAt("Unexpected escaped character '{a}' in regular expression.", line, from + l, c);
+ }
+ l += 1;
+ q = true;
+ break;
+ case '/':
+ warningAt("Unescaped '{a}'.", line, from + l - 1, '/');
+ q = true;
+ break;
+ case '<':
+ if (xmode === 'script') {
+ c = s.charAt(l);
+ if (c === '!' || c === '/') {
+ warningAt("HTML confusion in regular expression '<{a}'.", line, from + l, c);
+ }
+ }
+ q = true;
+ break;
+ default:
+ q = true;
+ }
+ } while (c);
+ break;
+ case '.':
+ if (option.regexp) {
+ warningAt("Insecure '{a}'.", line, from + l, c);
+ }
+ break;
+ case ']':
+ case '?':
+ case '{':
+ case '}':
+ case '+':
+ case '*':
+ warningAt("Unescaped '{a}'.", line, from + l, c);
+ break;
+ case '<':
+ if (xmode === 'script') {
+ c = s.charAt(l);
+ if (c === '!' || c === '/') {
+ warningAt("HTML confusion in regular expression '<{a}'.", line, from + l, c);
+ }
+ }
+ }
+ if (b) {
+ switch (s.charAt(l)) {
+ case '?':
+ case '+':
+ case '*':
+ l += 1;
+ if (s.charAt(l) === '?') {
+ l += 1;
+ }
+ break;
+ case '{':
+ l += 1;
+ c = s.charAt(l);
+ if (c < '0' || c > '9') {
+ warningAt("Expected a number and instead saw '{a}'.", line, from + l, c);
+ }
+ l += 1;
+ low = +c;
+ for (;;) {
+ c = s.charAt(l);
+ if (c < '0' || c > '9') {
+ break;
+ }
+ l += 1;
+ low = +c + (low * 10);
+ }
+ high = low;
+ if (c === ',') {
+ l += 1;
+ high = Infinity;
+ c = s.charAt(l);
+ if (c >= '0' && c <= '9') {
+ l += 1;
+ high = +c;
+ for (;;) {
+ c = s.charAt(l);
+ if (c < '0' || c > '9') {
+ break;
+ }
+ l += 1;
+ high = +c + (high * 10);
+ }
+ }
+ }
+ if (s.charAt(l) !== '}') {
+ warningAt("Expected '{a}' and instead saw '{b}'.", line, from + l, '}', c);
+ } else {
+ l += 1;
+ }
+ if (s.charAt(l) === '?') {
+ l += 1;
+ }
+ if (low > high) {
+ warningAt("'{a}' should not be greater than '{b}'.", line, from + l, low, high);
+ }
+ }
+ }
+ }
+ c = s.substr(0, l - 1);
+ character += l;
+ s = s.substr(l);
+ return it('(regexp)', c);
+ }
+ return it('(punctuator)', t);
+
+ // punctuator
+
+ case '<!--':
+ l = line;
+ c = character;
+ for (;;) {
+ i = s.indexOf('--');
+ if (i >= 0) {
+ break;
+ }
+ i = s.indexOf('<!');
+ if (i >= 0) {
+ errorAt("Nested HTML comment.",
+ line, character + i);
+ }
+ if (!nextLine()) {
+ errorAt("Unclosed HTML comment.", l, c);
+ }
+ }
+ l = s.indexOf('<!');
+ if (l >= 0 && l < i) {
+ errorAt("Nested HTML comment.",
+ line, character + l);
+ }
+ character += i;
+ if (s[i + 2] !== '>') {
+ errorAt("Expected -->.", line, character);
+ }
+ character += 3;
+ s = s.slice(i + 3);
+ break;
+ case '#':
+ if (xmode === 'html' || xmode === 'styleproperty') {
+ for (;;) {
+ c = s.charAt(0);
+ if ((c < '0' || c > '9') &&
+ (c < 'a' || c > 'f') &&
+ (c < 'A' || c > 'F')) {
+ break;
+ }
+ character += 1;
+ s = s.substr(1);
+ t += c;
+ }
+ if (t.length !== 4 && t.length !== 7) {
+ warningAt("Bad hex color '{a}'.", line,
+ from + l, t);
+ }
+ return it('(color)', t);
+ }
+ return it('(punctuator)', t);
+ default:
+ if (xmode === 'outer' && c === '&') {
+ character += 1;
+ s = s.substr(1);
+ for (;;) {
+ c = s.charAt(0);
+ character += 1;
+ s = s.substr(1);
+ if (c === ';') {
+ break;
+ }
+ if (!((c >= '0' && c <= '9') ||
+ (c >= 'a' && c <= 'z') ||
+ c === '#')) {
+ errorAt("Bad entity", line, from + l,
+ character);
+ }
+ }
+ break;
+ }
+ return it('(punctuator)', t);
+ }
+ }
+ }
+ }
+ };
+ }());
+
+
+ function addlabel(t, type) {
+
+ if (option.safe && funct['(global)'] && typeof predefined[t] !== 'boolean') {
+ warning('ADsafe global: ' + t + '.', token);
+ } else if (t === 'hasOwnProperty') {
+ warning("'hasOwnProperty' is a really bad name.");
+ }
+
+// Define t in the current function in the current scope.
+
+ if (is_own(funct, t) && !funct['(global)']) {
+ warning(funct[t] === true ?
+ "'{a}' was used before it was defined." :
+ "'{a}' is already defined.",
+ nexttoken, t);
+ }
+ funct[t] = type;
+ if (funct['(global)']) {
+ global[t] = funct;
+ if (is_own(implied, t)) {
+ warning("'{a}' was used before it was defined.", nexttoken, t);
+ delete implied[t];
+ }
+ } else {
+ scope[t] = funct;
+ }
+ }
+
+
+ function doOption() {
+ var b, obj, filter, o = nexttoken.value, t, v;
+ switch (o) {
+ case '*/':
+ error("Unbegun comment.");
+ break;
+ case '/*members':
+ case '/*member':
+ o = '/*members';
+ if (!membersOnly) {
+ membersOnly = {};
+ }
+ obj = membersOnly;
+ break;
+ case '/*jslint':
+ if (option.safe) {
+ warning("ADsafe restriction.");
+ }
+ obj = option;
+ filter = boolOptions;
+ break;
+ case '/*global':
+ if (option.safe) {
+ warning("ADsafe restriction.");
+ }
+ obj = predefined;
+ break;
+ default:
+ }
+ t = lex.token();
+loop: for (;;) {
+ for (;;) {
+ if (t.type === 'special' && t.value === '*/') {
+ break loop;
+ }
+ if (t.id !== '(endline)' && t.id !== ',') {
+ break;
+ }
+ t = lex.token();
+ }
+ if (t.type !== '(string)' && t.type !== '(identifier)' &&
+ o !== '/*members') {
+ error("Bad option.", t);
+ }
+ v = lex.token();
+ if (v.id === ':') {
+ v = lex.token();
+ if (obj === membersOnly) {
+ error("Expected '{a}' and instead saw '{b}'.",
+ t, '*/', ':');
+ }
+ if (t.value === 'indent' && o === '/*jslint') {
+ b = +v.value;
+ if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
+ Math.floor(b) !== b) {
+ error("Expected a small integer and instead saw '{a}'.",
+ v, v.value);
+ }
+ obj.white = true;
+ obj.indent = b;
+ } else if (t.value === 'maxerr' && o === '/*jslint') {
+ b = +v.value;
+ if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
+ Math.floor(b) !== b) {
+ error("Expected a small integer and instead saw '{a}'.",
+ v, v.value);
+ }
+ obj.maxerr = b;
+ } else if (t.value === 'maxlen' && o === '/*jslint') {
+ b = +v.value;
+ if (typeof b !== 'number' || !isFinite(b) || b <= 0 ||
+ Math.floor(b) !== b) {
+ error("Expected a small integer and instead saw '{a}'.",
+ v, v.value);
+ }
+ obj.maxlen = b;
+ } else if (v.value === 'true') {
+ obj[t.value] = true;
+ } else if (v.value === 'false') {
+ obj[t.value] = false;
+ } else {
+ error("Bad option value.", v);
+ }
+ t = lex.token();
+ } else {
+ if (o === '/*jslint') {
+ error("Missing option value.", t);
+ }
+ obj[t.value] = false;
+ t = v;
+ }
+ }
+ if (filter) {
+ assume();
+ }
+ }
+
+
+// We need a peek function. If it has an argument, it peeks that much farther
+// ahead. It is used to distinguish
+// for ( var i in ...
+// from
+// for ( var i = ...
+
+ function peek(p) {
+ var i = p || 0, j = 0, t;
+
+ while (j <= i) {
+ t = lookahead[j];
+ if (!t) {
+ t = lookahead[j] = lex.token();
+ }
+ j += 1;
+ }
+ return t;
+ }
+
+
+
+// Produce the next token. It looks for programming errors.
+
+ function advance(id, t) {
+ switch (token.id) {
+ case '(number)':
+ if (nexttoken.id === '.') {
+ warning(
+"A dot following a number can be confused with a decimal point.", token);
+ }
+ break;
+ case '-':
+ if (nexttoken.id === '-' || nexttoken.id === '--') {
+ warning("Confusing minusses.");
+ }
+ break;
+ case '+':
+ if (nexttoken.id === '+' || nexttoken.id === '++') {
+ warning("Confusing plusses.");
+ }
+ break;
+ }
+ if (token.type === '(string)' || token.identifier) {
+ anonname = token.value;
+ }
+
+ if (id && nexttoken.id !== id) {
+ if (t) {
+ if (nexttoken.id === '(end)') {
+ warning("Unmatched '{a}'.", t, t.id);
+ } else {
+ warning("Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.",
+ nexttoken, id, t.id, t.line, nexttoken.value);
+ }
+ } else if (nexttoken.type !== '(identifier)' ||
+ nexttoken.value !== id) {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, id, nexttoken.value);
+ }
+ }
+ prevtoken = token;
+ token = nexttoken;
+ for (;;) {
+ nexttoken = lookahead.shift() || lex.token();
+ if (nexttoken.id === '(end)' || nexttoken.id === '(error)') {
+ return;
+ }
+ if (nexttoken.type === 'special') {
+ doOption();
+ } else {
+ if (nexttoken.id !== '(endline)') {
+ break;
+ }
+ }
+ }
+ }
+
+
+// This is the heart of JSLINT, the Pratt parser. In addition to parsing, it
+// is looking for ad hoc lint patterns. We add to Pratt's model .fud, which is
+// like nud except that it is only used on the first token of a statement.
+// Having .fud makes it much easier to define JavaScript. I retained Pratt's
+// nomenclature.
+
+// .nud Null denotation
+// .fud First null denotation
+// .led Left denotation
+// lbp Left binding power
+// rbp Right binding power
+
+// They are key to the parsing method called Top Down Operator Precedence.
+
+ function parse(rbp, initial) {
+ var left;
+ if (nexttoken.id === '(end)') {
+ error("Unexpected early end of program.", token);
+ }
+ advance();
+ if (option.safe && typeof predefined[token.value] === 'boolean' &&
+ (nexttoken.id !== '(' && nexttoken.id !== '.')) {
+ warning('ADsafe violation.', token);
+ }
+ if (initial) {
+ anonname = 'anonymous';
+ funct['(verb)'] = token.value;
+ }
+ if (initial === true && token.fud) {
+ left = token.fud();
+ } else {
+ if (token.nud) {
+ left = token.nud();
+ } else {
+ if (nexttoken.type === '(number)' && token.id === '.') {
+ warning(
+"A leading decimal point can be confused with a dot: '.{a}'.",
+ token, nexttoken.value);
+ advance();
+ return token;
+ } else {
+ error("Expected an identifier and instead saw '{a}'.",
+ token, token.id);
+ }
+ }
+ while (rbp < nexttoken.lbp) {
+ advance();
+ if (token.led) {
+ left = token.led(left);
+ } else {
+ error("Expected an operator and instead saw '{a}'.",
+ token, token.id);
+ }
+ }
+ }
+ return left;
+ }
+
+
+// Functions for conformance of style.
+
+ function adjacent(left, right) {
+ left = left || token;
+ right = right || nexttoken;
+ if (option.white || xmode === 'styleproperty' || xmode === 'style') {
+ if (left.character !== right.from && left.line === right.line) {
+ warning("Unexpected space after '{a}'.", right, left.value);
+ }
+ }
+ }
+
+ function nospace(left, right) {
+ left = left || token;
+ right = right || nexttoken;
+ if (option.white && !left.comment) {
+ if (left.line === right.line) {
+ adjacent(left, right);
+ }
+ }
+ }
+
+
+ function nonadjacent(left, right) {
+ if (option.white) {
+ left = left || token;
+ right = right || nexttoken;
+ if (left.line === right.line && left.character === right.from) {
+ warning("Missing space after '{a}'.",
+ nexttoken, left.value);
+ }
+ }
+ }
+
+ function nobreaknonadjacent(left, right) {
+ left = left || token;
+ right = right || nexttoken;
+ if (!option.laxbreak && left.line !== right.line) {
+ warning("Bad line breaking before '{a}'.", right, right.id);
+ } else if (option.white) {
+ left = left || token;
+ right = right || nexttoken;
+ if (left.character === right.from) {
+ warning("Missing space after '{a}'.",
+ nexttoken, left.value);
+ }
+ }
+ }
+
+ function indentation(bias) {
+ var i;
+ if (option.white && nexttoken.id !== '(end)') {
+ i = indent + (bias || 0);
+ if (nexttoken.from !== i) {
+ warning("Expected '{a}' to have an indentation at {b} instead at {c}.",
+ nexttoken, nexttoken.value, i, nexttoken.from);
+ }
+ }
+ }
+
+ function nolinebreak(t) {
+ t = t || token;
+ if (t.line !== nexttoken.line) {
+ warning("Line breaking error '{a}'.", t, t.value);
+ }
+ }
+
+
+ function comma() {
+ if (token.line !== nexttoken.line) {
+ if (!option.laxbreak) {
+ warning("Bad line breaking before '{a}'.", token, nexttoken.id);
+ }
+ } else if (token.character !== nexttoken.from && option.white) {
+ warning("Unexpected space after '{a}'.", nexttoken, token.value);
+ }
+ advance(',');
+ nonadjacent(token, nexttoken);
+ }
+
+
+// Functional constructors for making the symbols that will be inherited by
+// tokens.
+
+ function symbol(s, p) {
+ var x = syntax[s];
+ if (!x || typeof x !== 'object') {
+ syntax[s] = x = {
+ id: s,
+ lbp: p,
+ value: s
+ };
+ }
+ return x;
+ }
+
+
+ function delim(s) {
+ return symbol(s, 0);
+ }
+
+
+ function stmt(s, f) {
+ var x = delim(s);
+ x.identifier = x.reserved = true;
+ x.fud = f;
+ return x;
+ }
+
+
+ function blockstmt(s, f) {
+ var x = stmt(s, f);
+ x.block = true;
+ return x;
+ }
+
+
+ function reserveName(x) {
+ var c = x.id.charAt(0);
+ if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+ x.identifier = x.reserved = true;
+ }
+ return x;
+ }
+
+
+ function prefix(s, f) {
+ var x = symbol(s, 150);
+ reserveName(x);
+ x.nud = (typeof f === 'function') ? f : function () {
+ this.right = parse(150);
+ this.arity = 'unary';
+ if (this.id === '++' || this.id === '--') {
+ if (option.plusplus) {
+ warning("Unexpected use of '{a}'.", this, this.id);
+ } else if ((!this.right.identifier || this.right.reserved) &&
+ this.right.id !== '.' && this.right.id !== '[') {
+ warning("Bad operand.", this);
+ }
+ }
+ return this;
+ };
+ return x;
+ }
+
+
+ function type(s, f) {
+ var x = delim(s);
+ x.type = s;
+ x.nud = f;
+ return x;
+ }
+
+
+ function reserve(s, f) {
+ var x = type(s, f);
+ x.identifier = x.reserved = true;
+ return x;
+ }
+
+
+ function reservevar(s, v) {
+ return reserve(s, function () {
+ if (this.id === 'this' || this.id === 'arguments') {
+ if (strict_mode && funct['(global)']) {
+ warning("Strict violation.", this);
+ } else if (option.safe) {
+ warning("ADsafe violation.", this);
+ }
+ }
+ return this;
+ });
+ }
+
+
+ function infix(s, f, p, w) {
+ var x = symbol(s, p);
+ reserveName(x);
+ x.led = function (left) {
+ if (!w) {
+ nobreaknonadjacent(prevtoken, token);
+ nonadjacent(token, nexttoken);
+ }
+ if (typeof f === 'function') {
+ return f(left, this);
+ } else {
+ this.left = left;
+ this.right = parse(p);
+ return this;
+ }
+ };
+ return x;
+ }
+
+
+ function relation(s, f) {
+ var x = symbol(s, 100);
+ x.led = function (left) {
+ nobreaknonadjacent(prevtoken, token);
+ nonadjacent(token, nexttoken);
+ var right = parse(100);
+ if ((left && left.id === 'NaN') || (right && right.id === 'NaN')) {
+ warning("Use the isNaN function to compare with NaN.", this);
+ } else if (f) {
+ f.apply(this, [left, right]);
+ }
+ if (left.id === '!') {
+ warning("Confusing use of '{a}'.", left, '!');
+ }
+ if (right.id === '!') {
+ warning("Confusing use of '{a}'.", left, '!');
+ }
+ this.left = left;
+ this.right = right;
+ return this;
+ };
+ return x;
+ }
+
+
+ function isPoorRelation(node) {
+ return node &&
+ ((node.type === '(number)' && +node.value === 0) ||
+ (node.type === '(string)' && node.value === ' ') ||
+ node.type === 'true' ||
+ node.type === 'false' ||
+ node.type === 'undefined' ||
+ node.type === 'null');
+ }
+
+
+ function assignop(s, f) {
+ symbol(s, 20).exps = true;
+ return infix(s, function (left, that) {
+ var l;
+ that.left = left;
+ if (predefined[left.value] === false &&
+ scope[left.value]['(global)'] === true) {
+ warning('Read only.', left);
+ }
+ if (option.safe) {
+ l = left;
+ do {
+ if (typeof predefined[l.value] === 'boolean') {
+ warning('ADsafe violation.', l);
+ }
+ l = l.left;
+ } while (l);
+ }
+ if (left) {
+ if (left.id === '.' || left.id === '[') {
+ if (!left.left || left.left.value === 'arguments') {
+ warning('Bad assignment.', that);
+ }
+ that.right = parse(19);
+ return that;
+ } else if (left.identifier && !left.reserved) {
+ if (funct[left.value] === 'exception') {
+ warning("Do not assign to the exception parameter.", left);
+ }
+ that.right = parse(19);
+ return that;
+ }
+ if (left === syntax['function']) {
+ warning(
+"Expected an identifier in an assignment and instead saw a function invocation.",
+ token);
+ }
+ }
+ error("Bad assignment.", that);
+ }, 20);
+ }
+
+ function bitwise(s, f, p) {
+ var x = symbol(s, p);
+ reserveName(x);
+ x.led = (typeof f === 'function') ? f : function (left) {
+ if (option.bitwise) {
+ warning("Unexpected use of '{a}'.", this, this.id);
+ }
+ this.left = left;
+ this.right = parse(p);
+ return this;
+ };
+ return x;
+ }
+
+ function bitwiseassignop(s) {
+ symbol(s, 20).exps = true;
+ return infix(s, function (left, that) {
+ if (option.bitwise) {
+ warning("Unexpected use of '{a}'.", that, that.id);
+ }
+ nonadjacent(prevtoken, token);
+ nonadjacent(token, nexttoken);
+ if (left) {
+ if (left.id === '.' || left.id === '[' ||
+ (left.identifier && !left.reserved)) {
+ parse(19);
+ return that;
+ }
+ if (left === syntax['function']) {
+ warning(
+"Expected an identifier in an assignment, and instead saw a function invocation.",
+ token);
+ }
+ return that;
+ }
+ error("Bad assignment.", that);
+ }, 20);
+ }
+
+
+ function suffix(s, f) {
+ var x = symbol(s, 150);
+ x.led = function (left) {
+ if (option.plusplus) {
+ warning("Unexpected use of '{a}'.", this, this.id);
+ } else if ((!left.identifier || left.reserved) && left.id !== '.' && left.id !== '[') {
+ warning("Bad operand.", this);
+ }
+ this.left = left;
+ return this;
+ };
+ return x;
+ }
+
+
+ function optionalidentifier() {
+ if (nexttoken.reserved) {
+ warning("Expected an identifier and instead saw '{a}' (a reserved word).",
+ nexttoken, nexttoken.id);
+ }
+ if (nexttoken.identifier) {
+ advance();
+ return token.value;
+ }
+ }
+
+
+ function identifier() {
+ var i = optionalidentifier();
+ if (i) {
+ return i;
+ }
+ if (token.id === 'function' && nexttoken.id === '(') {
+ warning("Missing name in function statement.");
+ } else {
+ error("Expected an identifier and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ }
+
+ function reachable(s) {
+ var i = 0, t;
+ if (nexttoken.id !== ';' || noreach) {
+ return;
+ }
+ for (;;) {
+ t = peek(i);
+ if (t.reach) {
+ return;
+ }
+ if (t.id !== '(endline)') {
+ if (t.id === 'function') {
+ warning(
+"Inner functions should be listed at the top of the outer function.", t);
+ break;
+ }
+ warning("Unreachable '{a}' after '{b}'.", t, t.value, s);
+ break;
+ }
+ i += 1;
+ }
+ }
+
+
+ function statement(noindent) {
+ var i = indent, r, s = scope, t = nexttoken;
+
+// We don't like the empty statement.
+
+ if (t.id === ';') {
+ warning("Unnecessary semicolon.", t);
+ advance(';');
+ return;
+ }
+
+// Is this a labelled statement?
+
+ if (t.identifier && !t.reserved && peek().id === ':') {
+ advance();
+ advance(':');
+ scope = Object.create(s);
+ addlabel(t.value, 'label');
+ if (!nexttoken.labelled) {
+ warning("Label '{a}' on {b} statement.",
+ nexttoken, t.value, nexttoken.value);
+ }
+ if (jx.test(t.value + ':')) {
+ warning("Label '{a}' looks like a javascript url.",
+ t, t.value);
+ }
+ nexttoken.label = t.value;
+ t = nexttoken;
+ }
+
+// Parse the statement.
+
+ if (!noindent) {
+ indentation();
+ }
+ r = parse(0, true);
+
+// Look for the final semicolon.
+
+ if (!t.block) {
+ if (!r || !r.exps) {
+ warning(
+"Expected an assignment or function call and instead saw an expression.",
+ token);
+ } else if (r.id === '(' && r.left.id === 'new') {
+ warning("Do not use 'new' for side effects.");
+ }
+ if (nexttoken.id !== ';') {
+ warningAt("Missing semicolon.", token.line,
+ token.from + token.value.length);
+ } else {
+ adjacent(token, nexttoken);
+ advance(';');
+ nonadjacent(token, nexttoken);
+ }
+ }
+
+// Restore the indentation.
+
+ indent = i;
+ scope = s;
+ return r;
+ }
+
+
+ function use_strict() {
+ if (nexttoken.value === 'use strict') {
+ advance();
+ advance(';');
+ strict_mode = true;
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+
+ function statements(begin) {
+ var a = [], f, p;
+ if (begin && !use_strict() && option.strict) {
+ warning('Missing "use strict" statement.', nexttoken);
+ }
+ if (option.adsafe) {
+ switch (begin) {
+ case 'script':
+ if (!adsafe_may) {
+ if (nexttoken.value !== 'ADSAFE' ||
+ peek(0).id !== '.' ||
+ (peek(1).value !== 'id' &&
+ peek(1).value !== 'go')) {
+ error('ADsafe violation: Missing ADSAFE.id or ADSAFE.go.',
+ nexttoken);
+ }
+ }
+ if (nexttoken.value === 'ADSAFE' &&
+ peek(0).id === '.' &&
+ peek(1).value === 'id') {
+ if (adsafe_may) {
+ error('ADsafe violation.', nexttoken);
+ }
+ advance('ADSAFE');
+ advance('.');
+ advance('id');
+ advance('(');
+ if (nexttoken.value !== adsafe_id) {
+ error('ADsafe violation: id does not match.', nexttoken);
+ }
+ advance('(string)');
+ advance(')');
+ advance(';');
+ adsafe_may = true;
+ }
+ break;
+ case 'lib':
+ if (nexttoken.value === 'ADSAFE') {
+ advance('ADSAFE');
+ advance('.');
+ advance('lib');
+ advance('(');
+ advance('(string)');
+ comma();
+ f = parse(0);
+ if (f.id !== 'function') {
+ error('The second argument to lib must be a function.', f);
+ }
+ p = f.funct['(params)'];
+ p = p && p.join(', ');
+ if (p && p !== 'lib') {
+ error("Expected '{a}' and instead saw '{b}'.",
+ f, '(lib)', '(' + p + ')');
+ }
+ advance(')');
+ advance(';');
+ return a;
+ } else {
+ error("ADsafe lib violation.");
+ }
+ }
+ }
+ while (!nexttoken.reach && nexttoken.id !== '(end)') {
+ if (nexttoken.id === ';') {
+ warning("Unnecessary semicolon.");
+ advance(';');
+ } else {
+ a.push(statement());
+ }
+ }
+ return a;
+ }
+
+
+ function block(f) {
+ var a, b = inblock, old_indent = indent, s = scope, t;
+ inblock = f;
+ scope = Object.create(scope);
+ nonadjacent(token, nexttoken);
+ t = nexttoken;
+ if (nexttoken.id === '{') {
+ advance('{');
+ if (nexttoken.id !== '}' || token.line !== nexttoken.line) {
+ indent += option.indent;
+ while (!f && nexttoken.from > indent) {
+ indent += option.indent;
+ }
+ if (!f) {
+ use_strict();
+ }
+ a = statements();
+ indent -= option.indent;
+ indentation();
+ }
+ advance('}', t);
+ indent = old_indent;
+ } else {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, '{', nexttoken.value);
+ noreach = true;
+ a = [statement()];
+ noreach = false;
+ }
+ funct['(verb)'] = null;
+ scope = s;
+ inblock = b;
+ return a;
+ }
+
+
+// An identity function, used by string and number tokens.
+
+ function idValue() {
+ return this;
+ }
+
+
+ function countMember(m) {
+ if (membersOnly && typeof membersOnly[m] !== 'boolean') {
+ warning("Unexpected /*member '{a}'.", token, m);
+ }
+ if (typeof member[m] === 'number') {
+ member[m] += 1;
+ } else {
+ member[m] = 1;
+ }
+ }
+
+
+ function note_implied(token) {
+ var name = token.value, line = token.line, a = implied[name];
+ if (typeof a === 'function') {
+ a = false;
+ }
+ if (!a) {
+ a = [line];
+ implied[name] = a;
+ } else if (a[a.length - 1] !== line) {
+ a.push(line);
+ }
+ }
+
+// CSS parsing.
+
+
+ function cssName() {
+ if (nexttoken.identifier) {
+ advance();
+ return true;
+ }
+ }
+
+ function cssNumber() {
+ if (nexttoken.id === '-') {
+ advance('-');
+ adjacent();
+ nolinebreak();
+ }
+ if (nexttoken.type === '(number)') {
+ advance('(number)');
+ return true;
+ }
+ }
+
+ function cssString() {
+ if (nexttoken.type === '(string)') {
+ advance();
+ return true;
+ }
+ }
+
+ function cssColor() {
+ var i, number, value;
+ if (nexttoken.identifier) {
+ value = nexttoken.value;
+ if (value === 'rgb' || value === 'rgba') {
+ advance();
+ advance('(');
+ for (i = 0; i < 3; i += 1) {
+ if (i) {
+ advance(',');
+ }
+ number = nexttoken.value;
+ if (nexttoken.type !== '(number)' || number < 0) {
+ warning("Expected a positive number and instead saw '{a}'",
+ nexttoken, number);
+ advance();
+ } else {
+ advance();
+ if (nexttoken.id === '%') {
+ advance('%');
+ if (number > 100) {
+ warning("Expected a percentage and instead saw '{a}'",
+ token, number);
+ }
+ } else {
+ if (number > 255) {
+ warning("Expected a small number and instead saw '{a}'",
+ token, number);
+ }
+ }
+ }
+ }
+ if (value === 'rgba') {
+ advance(',');
+ number = +nexttoken.value;
+ if (nexttoken.type !== '(number)' || number < 0 || number > 1) {
+ warning("Expected a number between 0 and 1 and instead saw '{a}'",
+ nexttoken, number);
+ }
+ advance();
+ if (nexttoken.id === '%') {
+ warning("Unexpected '%'.");
+ advance('%');
+ }
+ }
+ advance(')');
+ return true;
+ } else if (cssColorData[nexttoken.value] === true) {
+ advance();
+ return true;
+ }
+ } else if (nexttoken.type === '(color)') {
+ advance();
+ return true;
+ }
+ return false;
+ }
+
+ function cssLength() {
+ if (nexttoken.id === '-') {
+ advance('-');
+ adjacent();
+ nolinebreak();
+ }
+ if (nexttoken.type === '(number)') {
+ advance();
+ if (nexttoken.type !== '(string)' &&
+ cssLengthData[nexttoken.value] === true) {
+ adjacent();
+ advance();
+ } else if (+token.value !== 0) {
+ warning("Expected a linear unit and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ return true;
+ }
+ return false;
+ }
+
+ function cssLineHeight() {
+ if (nexttoken.id === '-') {
+ advance('-');
+ adjacent();
+ }
+ if (nexttoken.type === '(number)') {
+ advance();
+ if (nexttoken.type !== '(string)' &&
+ cssLengthData[nexttoken.value] === true) {
+ adjacent();
+ advance();
+ }
+ return true;
+ }
+ return false;
+ }
+
+ function cssWidth() {
+ if (nexttoken.identifier) {
+ switch (nexttoken.value) {
+ case 'thin':
+ case 'medium':
+ case 'thick':
+ advance();
+ return true;
+ }
+ } else {
+ return cssLength();
+ }
+ }
+
+ function cssMargin() {
+ if (nexttoken.identifier) {
+ if (nexttoken.value === 'auto') {
+ advance();
+ return true;
+ }
+ } else {
+ return cssLength();
+ }
+ }
+
+ function cssAttr() {
+ if (nexttoken.identifier && nexttoken.value === 'attr') {
+ advance();
+ advance('(');
+ if (!nexttoken.identifier) {
+ warning("Expected a name and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ advance(')');
+ return true;
+ }
+ return false;
+ }
+
+ function cssCommaList() {
+ while (nexttoken.id !== ';') {
+ if (!cssName() && !cssString()) {
+ warning("Expected a name and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ if (nexttoken.id !== ',') {
+ return true;
+ }
+ comma();
+ }
+ }
+
+ function cssCounter() {
+ if (nexttoken.identifier && nexttoken.value === 'counter') {
+ advance();
+ advance('(');
+ if (!nexttoken.identifier) {
+ }
+ advance();
+ if (nexttoken.id === ',') {
+ comma();
+ if (nexttoken.type !== '(string)') {
+ warning("Expected a string and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ }
+ advance(')');
+ return true;
+ }
+ if (nexttoken.identifier && nexttoken.value === 'counters') {
+ advance();
+ advance('(');
+ if (!nexttoken.identifier) {
+ warning("Expected a name and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ if (nexttoken.id === ',') {
+ comma();
+ if (nexttoken.type !== '(string)') {
+ warning("Expected a string and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ }
+ if (nexttoken.id === ',') {
+ comma();
+ if (nexttoken.type !== '(string)') {
+ warning("Expected a string and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ }
+ advance(')');
+ return true;
+ }
+ return false;
+ }
+
+
+ function cssShape() {
+ var i;
+ if (nexttoken.identifier && nexttoken.value === 'rect') {
+ advance();
+ advance('(');
+ for (i = 0; i < 4; i += 1) {
+ if (!cssLength()) {
+ warning("Expected a number and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ break;
+ }
+ }
+ advance(')');
+ return true;
+ }
+ return false;
+ }
+
+ function cssUrl() {
+ var c, url;
+ if (nexttoken.identifier && nexttoken.value === 'url') {
+ nexttoken = lex.range('(', ')');
+ url = nexttoken.value;
+ c = url.charAt(0);
+ if (c === '"' || c === '\'') {
+ if (url.slice(-1) !== c) {
+ warning("Bad url string.");
+ } else {
+ url = url.slice(1, -1);
+ if (url.indexOf(c) >= 0) {
+ warning("Bad url string.");
+ }
+ }
+ }
+ if (!url) {
+ warning("Missing url.");
+ }
+ advance();
+ if (option.safe && ux.test(url)) {
+ error("ADsafe URL violation.");
+ }
+ urls.push(url);
+ return true;
+ }
+ return false;
+ }
+
+ cssAny = [cssUrl, function () {
+ for (;;) {
+ if (nexttoken.identifier) {
+ switch (nexttoken.value.toLowerCase()) {
+ case 'url':
+ cssUrl();
+ break;
+ case 'expression':
+ warning("Unexpected expression '{a}'.",
+ nexttoken, nexttoken.value);
+ advance();
+ break;
+ default:
+ advance();
+ }
+ } else {
+ if (nexttoken.id === ';' || nexttoken.id === '!' ||
+ nexttoken.id === '(end)' || nexttoken.id === '}') {
+ return true;
+ }
+ advance();
+ }
+ }
+ }];
+
+ cssBorderStyle = [
+ 'none', 'hidden', 'dotted', 'dashed', 'solid', 'double', 'ridge',
+ 'inset', 'outset'
+ ];
+
+ cssBreak = [
+ 'auto', 'always', 'avoid', 'left', 'right'
+ ];
+
+ cssOverflow = [
+ 'auto', 'hidden', 'scroll', 'visible'
+ ];
+
+ cssAttributeData = {
+ background: [
+ true, 'background-attachment', 'background-color',
+ 'background-image', 'background-position', 'background-repeat'
+ ],
+ 'background-attachment': ['scroll', 'fixed'],
+ 'background-color': ['transparent', cssColor],
+ 'background-image': ['none', cssUrl],
+ 'background-position': [
+ 2, [cssLength, 'top', 'bottom', 'left', 'right', 'center']
+ ],
+ 'background-repeat': [
+ 'repeat', 'repeat-x', 'repeat-y', 'no-repeat'
+ ],
+ 'border': [true, 'border-color', 'border-style', 'border-width'],
+ 'border-bottom': [
+ true, 'border-bottom-color', 'border-bottom-style',
+ 'border-bottom-width'
+ ],
+ 'border-bottom-color': cssColor,
+ 'border-bottom-style': cssBorderStyle,
+ 'border-bottom-width': cssWidth,
+ 'border-collapse': ['collapse', 'separate'],
+ 'border-color': ['transparent', 4, cssColor],
+ 'border-left': [
+ true, 'border-left-color', 'border-left-style', 'border-left-width'
+ ],
+ 'border-left-color': cssColor,
+ 'border-left-style': cssBorderStyle,
+ 'border-left-width': cssWidth,
+ 'border-right': [
+ true, 'border-right-color', 'border-right-style',
+ 'border-right-width'
+ ],
+ 'border-right-color': cssColor,
+ 'border-right-style': cssBorderStyle,
+ 'border-right-width': cssWidth,
+ 'border-spacing': [2, cssLength],
+ 'border-style': [4, cssBorderStyle],
+ 'border-top': [
+ true, 'border-top-color', 'border-top-style', 'border-top-width'
+ ],
+ 'border-top-color': cssColor,
+ 'border-top-style': cssBorderStyle,
+ 'border-top-width': cssWidth,
+ 'border-width': [4, cssWidth],
+ bottom: [cssLength, 'auto'],
+ 'caption-side' : ['bottom', 'left', 'right', 'top'],
+ clear: ['both', 'left', 'none', 'right'],
+ clip: [cssShape, 'auto'],
+ color: cssColor,
+ content: [
+ 'open-quote', 'close-quote', 'no-open-quote', 'no-close-quote',
+ cssString, cssUrl, cssCounter, cssAttr
+ ],
+ 'counter-increment': [
+ cssName, 'none'
+ ],
+ 'counter-reset': [
+ cssName, 'none'
+ ],
+ cursor: [
+ cssUrl, 'auto', 'crosshair', 'default', 'e-resize', 'help', 'move',
+ 'n-resize', 'ne-resize', 'nw-resize', 'pointer', 's-resize',
+ 'se-resize', 'sw-resize', 'w-resize', 'text', 'wait'
+ ],
+ direction: ['ltr', 'rtl'],
+ display: [
+ 'block', 'compact', 'inline', 'inline-block', 'inline-table',
+ 'list-item', 'marker', 'none', 'run-in', 'table', 'table-caption',
+ 'table-cell', 'table-column', 'table-column-group',
+ 'table-footer-group', 'table-header-group', 'table-row',
+ 'table-row-group'
+ ],
+ 'empty-cells': ['show', 'hide'],
+ 'float': ['left', 'none', 'right'],
+ font: [
+ 'caption', 'icon', 'menu', 'message-box', 'small-caption',
+ 'status-bar', true, 'font-size', 'font-style', 'font-weight',
+ 'font-family'
+ ],
+ 'font-family': cssCommaList,
+ 'font-size': [
+ 'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large',
+ 'xx-large', 'larger', 'smaller', cssLength
+ ],
+ 'font-size-adjust': ['none', cssNumber],
+ 'font-stretch': [
+ 'normal', 'wider', 'narrower', 'ultra-condensed',
+ 'extra-condensed', 'condensed', 'semi-condensed',
+ 'semi-expanded', 'expanded', 'extra-expanded'
+ ],
+ 'font-style': [
+ 'normal', 'italic', 'oblique'
+ ],
+ 'font-variant': [
+ 'normal', 'small-caps'
+ ],
+ 'font-weight': [
+ 'normal', 'bold', 'bolder', 'lighter', cssNumber
+ ],
+ height: [cssLength, 'auto'],
+ left: [cssLength, 'auto'],
+ 'letter-spacing': ['normal', cssLength],
+ 'line-height': ['normal', cssLineHeight],
+ 'list-style': [
+ true, 'list-style-image', 'list-style-position', 'list-style-type'
+ ],
+ 'list-style-image': ['none', cssUrl],
+ 'list-style-position': ['inside', 'outside'],
+ 'list-style-type': [
+ 'circle', 'disc', 'square', 'decimal', 'decimal-leading-zero',
+ 'lower-roman', 'upper-roman', 'lower-greek', 'lower-alpha',
+ 'lower-latin', 'upper-alpha', 'upper-latin', 'hebrew', 'katakana',
+ 'hiragana-iroha', 'katakana-oroha', 'none'
+ ],
+ margin: [4, cssMargin],
+ 'margin-bottom': cssMargin,
+ 'margin-left': cssMargin,
+ 'margin-right': cssMargin,
+ 'margin-top': cssMargin,
+ 'marker-offset': [cssLength, 'auto'],
+ 'max-height': [cssLength, 'none'],
+ 'max-width': [cssLength, 'none'],
+ 'min-height': cssLength,
+ 'min-width': cssLength,
+ opacity: cssNumber,
+ outline: [true, 'outline-color', 'outline-style', 'outline-width'],
+ 'outline-color': ['invert', cssColor],
+ 'outline-style': [
+ 'dashed', 'dotted', 'double', 'groove', 'inset', 'none',
+ 'outset', 'ridge', 'solid'
+ ],
+ 'outline-width': cssWidth,
+ overflow: cssOverflow,
+ 'overflow-x': cssOverflow,
+ 'overflow-y': cssOverflow,
+ padding: [4, cssLength],
+ 'padding-bottom': cssLength,
+ 'padding-left': cssLength,
+ 'padding-right': cssLength,
+ 'padding-top': cssLength,
+ 'page-break-after': cssBreak,
+ 'page-break-before': cssBreak,
+ position: ['absolute', 'fixed', 'relative', 'static'],
+ quotes: [8, cssString],
+ right: [cssLength, 'auto'],
+ 'table-layout': ['auto', 'fixed'],
+ 'text-align': ['center', 'justify', 'left', 'right'],
+ 'text-decoration': [
+ 'none', 'underline', 'overline', 'line-through', 'blink'
+ ],
+ 'text-indent': cssLength,
+ 'text-shadow': ['none', 4, [cssColor, cssLength]],
+ 'text-transform': ['capitalize', 'uppercase', 'lowercase', 'none'],
+ top: [cssLength, 'auto'],
+ 'unicode-bidi': ['normal', 'embed', 'bidi-override'],
+ 'vertical-align': [
+ 'baseline', 'bottom', 'sub', 'super', 'top', 'text-top', 'middle',
+ 'text-bottom', cssLength
+ ],
+ visibility: ['visible', 'hidden', 'collapse'],
+ 'white-space': [
+ 'normal', 'nowrap', 'pre', 'pre-line', 'pre-wrap', 'inherit'
+ ],
+ width: [cssLength, 'auto'],
+ 'word-spacing': ['normal', cssLength],
+ 'word-wrap': ['break-word', 'normal'],
+ 'z-index': ['auto', cssNumber]
+ };
+
+ function styleAttribute() {
+ var v;
+ while (nexttoken.id === '*' || nexttoken.id === '#' ||
+ nexttoken.value === '_') {
+ if (!option.css) {
+ warning("Unexpected '{a}'.", nexttoken, nexttoken.value);
+ }
+ advance();
+ }
+ if (nexttoken.id === '-') {
+ if (!option.css) {
+ warning("Unexpected '{a}'.", nexttoken, nexttoken.value);
+ }
+ advance('-');
+ if (!nexttoken.identifier) {
+ warning(
+"Expected a non-standard style attribute and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ return cssAny;
+ } else {
+ if (!nexttoken.identifier) {
+ warning("Excepted a style attribute, and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ } else {
+ if (is_own(cssAttributeData, nexttoken.value)) {
+ v = cssAttributeData[nexttoken.value];
+ } else {
+ v = cssAny;
+ if (!option.css) {
+ warning("Unrecognized style attribute '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ }
+ }
+ advance();
+ return v;
+ }
+ }
+
+ function styleValue(v) {
+ var i = 0,
+ n,
+ once,
+ match,
+ round,
+ start = 0,
+ vi;
+ switch (typeof v) {
+ case 'function':
+ return v();
+ case 'string':
+ if (nexttoken.identifier && nexttoken.value === v) {
+ advance();
+ return true;
+ }
+ return false;
+ }
+ for (;;) {
+ if (i >= v.length) {
+ return false;
+ }
+ vi = v[i];
+ i += 1;
+ if (vi === true) {
+ break;
+ } else if (typeof vi === 'number') {
+ n = vi;
+ vi = v[i];
+ i += 1;
+ } else {
+ n = 1;
+ }
+ match = false;
+ while (n > 0) {
+ if (styleValue(vi)) {
+ match = true;
+ n -= 1;
+ } else {
+ break;
+ }
+ }
+ if (match) {
+ return true;
+ }
+ }
+ start = i;
+ once = [];
+ for (;;) {
+ round = false;
+ for (i = start; i < v.length; i += 1) {
+ if (!once[i]) {
+ if (styleValue(cssAttributeData[v[i]])) {
+ match = true;
+ round = true;
+ once[i] = true;
+ break;
+ }
+ }
+ }
+ if (!round) {
+ return match;
+ }
+ }
+ }
+
+ function styleChild() {
+ if (nexttoken.id === '(number)') {
+ advance();
+ if (nexttoken.value === 'n' && nexttoken.identifier) {
+ adjacent();
+ advance();
+ if (nexttoken.id === '+') {
+ adjacent();
+ advance('+');
+ adjacent();
+ advance('(number)');
+ }
+ }
+ return;
+ } else {
+ switch (nexttoken.value) {
+ case 'odd':
+ case 'even':
+ if (nexttoken.identifier) {
+ advance();
+ return;
+ }
+ }
+ }
+ warning("Unexpected token '{a}'.", nexttoken, nexttoken.value);
+ }
+
+ function substyle() {
+ var v;
+ for (;;) {
+ if (nexttoken.id === '}' || nexttoken.id === '(end)' ||
+ xquote && nexttoken.id === xquote) {
+ return;
+ }
+ while (nexttoken.id === ';') {
+ warning("Misplaced ';'.");
+ advance(';');
+ }
+ v = styleAttribute();
+ advance(':');
+ if (nexttoken.identifier && nexttoken.value === 'inherit') {
+ advance();
+ } else {
+ if (!styleValue(v)) {
+ warning("Unexpected token '{a}'.", nexttoken,
+ nexttoken.value);
+ advance();
+ }
+ }
+ if (nexttoken.id === '!') {
+ advance('!');
+ adjacent();
+ if (nexttoken.identifier && nexttoken.value === 'important') {
+ advance();
+ } else {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, 'important', nexttoken.value);
+ }
+ }
+ if (nexttoken.id === '}' || nexttoken.id === xquote) {
+ warning("Missing '{a}'.", nexttoken, ';');
+ } else {
+ advance(';');
+ }
+ }
+ }
+
+ function styleSelector() {
+ if (nexttoken.identifier) {
+ if (!is_own(htmltag, nexttoken.value)) {
+ warning("Expected a tagName, and instead saw {a}.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ } else {
+ switch (nexttoken.id) {
+ case '>':
+ case '+':
+ advance();
+ styleSelector();
+ break;
+ case ':':
+ advance(':');
+ switch (nexttoken.value) {
+ case 'active':
+ case 'after':
+ case 'before':
+ case 'checked':
+ case 'disabled':
+ case 'empty':
+ case 'enabled':
+ case 'first-child':
+ case 'first-letter':
+ case 'first-line':
+ case 'first-of-type':
+ case 'focus':
+ case 'hover':
+ case 'last-of-type':
+ case 'link':
+ case 'only-of-type':
+ case 'root':
+ case 'target':
+ case 'visited':
+ advance();
+ break;
+ case 'lang':
+ advance();
+ advance('(');
+ if (!nexttoken.identifier) {
+ warning("Expected a lang code, and instead saw :{a}.",
+ nexttoken, nexttoken.value);
+ }
+ advance(')');
+ break;
+ case 'nth-child':
+ case 'nth-last-child':
+ case 'nth-last-of-type':
+ case 'nth-of-type':
+ advance();
+ advance('(');
+ styleChild();
+ advance(')');
+ break;
+ case 'not':
+ advance();
+ advance('(');
+ if (nexttoken.id === ':' && peek(0).value === 'not') {
+ warning("Nested not.");
+ }
+ styleSelector();
+ advance(')');
+ break;
+ default:
+ warning("Expected a pseudo, and instead saw :{a}.",
+ nexttoken, nexttoken.value);
+ }
+ break;
+ case '#':
+ advance('#');
+ if (!nexttoken.identifier) {
+ warning("Expected an id, and instead saw #{a}.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ break;
+ case '*':
+ advance('*');
+ break;
+ case '.':
+ advance('.');
+ if (!nexttoken.identifier) {
+ warning("Expected a class, and instead saw #.{a}.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ break;
+ case '[':
+ advance('[');
+ if (!nexttoken.identifier) {
+ warning("Expected an attribute, and instead saw [{a}].",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ if (nexttoken.id === '=' || nexttoken.value === '~=' ||
+ nexttoken.value === '$=' ||
+ nexttoken.value === '|=' ||
+ nexttoken.id === '*=' ||
+ nexttoken.id === '^=') {
+ advance();
+ if (nexttoken.type !== '(string)') {
+ warning("Expected a string, and instead saw {a}.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ }
+ advance(']');
+ break;
+ default:
+ error("Expected a CSS selector, and instead saw {a}.",
+ nexttoken, nexttoken.value);
+ }
+ }
+ }
+
+ function stylePattern() {
+ var name;
+ if (nexttoken.id === '{') {
+ warning("Expected a style pattern, and instead saw '{a}'.", nexttoken,
+ nexttoken.id);
+ } else if (nexttoken.id === '@') {
+ advance('@');
+ name = nexttoken.value;
+ if (nexttoken.identifier && atrule[name] === true) {
+ advance();
+ return name;
+ }
+ warning("Expected an at-rule, and instead saw @{a}.", nexttoken, name);
+ }
+ for (;;) {
+ styleSelector();
+ if (nexttoken.id === '</' || nexttoken.id === '{' ||
+ nexttoken.id === '(end)') {
+ return '';
+ }
+ if (nexttoken.id === ',') {
+ comma();
+ }
+ }
+ }
+
+ function styles() {
+ var i;
+ while (nexttoken.id === '@') {
+ i = peek();
+ if (i.identifier && i.value === 'import') {
+ advance('@');
+ advance();
+ if (!cssUrl()) {
+ warning("Expected '{a}' and instead saw '{b}'.", nexttoken,
+ 'url', nexttoken.value);
+ advance();
+ }
+ advance(';');
+ } else {
+ break;
+ }
+ }
+ while (nexttoken.id !== '</' && nexttoken.id !== '(end)') {
+ stylePattern();
+ xmode = 'styleproperty';
+ if (nexttoken.id === ';') {
+ advance(';');
+ } else {
+ advance('{');
+ substyle();
+ xmode = 'style';
+ advance('}');
+ }
+ }
+ }
+
+
+// HTML parsing.
+
+ function doBegin(n) {
+ if (n !== 'html' && !option.fragment) {
+ if (n === 'div' && option.adsafe) {
+ error("ADSAFE: Use the fragment option.");
+ } else {
+ error("Expected '{a}' and instead saw '{b}'.",
+ token, 'html', n);
+ }
+ }
+ if (option.adsafe) {
+ if (n === 'html') {
+ error(
+"Currently, ADsafe does not operate on whole HTML documents. It operates on <div> fragments and .js files.", token);
+ }
+ if (option.fragment) {
+ if (n !== 'div') {
+ error("ADsafe violation: Wrap the widget in a div.", token);
+ }
+ } else {
+ error("Use the fragment option.", token);
+ }
+ }
+ option.browser = true;
+ assume();
+ }
+
+ function doAttribute(n, a, v) {
+ var u, x;
+ if (a === 'id') {
+ u = typeof v === 'string' ? v.toUpperCase() : '';
+ if (ids[u] === true) {
+ warning("Duplicate id='{a}'.", nexttoken, v);
+ }
+ if (!/^[A-Za-z][A-Za-z0-9._:\-]*$/.test(v)) {
+ warning("Bad id: '{a}'.", nexttoken, v);
+ } else if (option.adsafe) {
+ if (adsafe_id) {
+ if (v.slice(0, adsafe_id.length) !== adsafe_id) {
+ warning("ADsafe violation: An id must have a '{a}' prefix",
+ nexttoken, adsafe_id);
+ } else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
+ warning("ADSAFE violation: bad id.");
+ }
+ } else {
+ adsafe_id = v;
+ if (!/^[A-Z]+_$/.test(v)) {
+ warning("ADSAFE violation: bad id.");
+ }
+ }
+ }
+ x = v.search(dx);
+ if (x >= 0) {
+ warning("Unexpected character '{a}' in {b}.", token, v.charAt(x), a);
+ }
+ ids[u] = true;
+ } else if (a === 'class' || a === 'type' || a === 'name') {
+ x = v.search(qx);
+ if (x >= 0) {
+ warning("Unexpected character '{a}' in {b}.", token, v.charAt(x), a);
+ }
+ ids[u] = true;
+ } else if (a === 'href' || a === 'background' ||
+ a === 'content' || a === 'data' ||
+ a.indexOf('src') >= 0 || a.indexOf('url') >= 0) {
+ if (option.safe && ux.test(v)) {
+ error("ADsafe URL violation.");
+ }
+ urls.push(v);
+ } else if (a === 'for') {
+ if (option.adsafe) {
+ if (adsafe_id) {
+ if (v.slice(0, adsafe_id.length) !== adsafe_id) {
+ warning("ADsafe violation: An id must have a '{a}' prefix",
+ nexttoken, adsafe_id);
+ } else if (!/^[A-Z]+_[A-Z]+$/.test(v)) {
+ warning("ADSAFE violation: bad id.");
+ }
+ } else {
+ warning("ADSAFE violation: bad id.");
+ }
+ }
+ } else if (a === 'name') {
+ if (option.adsafe && v.indexOf('_') >= 0) {
+ warning("ADsafe name violation.");
+ }
+ }
+ }
+
+ function doTag(n, a) {
+ var i, t = htmltag[n], x;
+ src = false;
+ if (!t) {
+ error("Unrecognized tag '<{a}>'.",
+ nexttoken,
+ n === n.toLowerCase() ? n :
+ n + ' (capitalization error)');
+ }
+ if (stack.length > 0) {
+ if (n === 'html') {
+ error("Too many <html> tags.", token);
+ }
+ x = t.parent;
+ if (x) {
+ if (x.indexOf(' ' + stack[stack.length - 1].name + ' ') < 0) {
+ error("A '<{a}>' must be within '<{b}>'.",
+ token, n, x);
+ }
+ } else if (!option.adsafe && !option.fragment) {
+ i = stack.length;
+ do {
+ if (i <= 0) {
+ error("A '<{a}>' must be within '<{b}>'.",
+ token, n, 'body');
+ }
+ i -= 1;
+ } while (stack[i].name !== 'body');
+ }
+ }
+ switch (n) {
+ case 'div':
+ if (option.adsafe && stack.length === 1 && !adsafe_id) {
+ warning("ADSAFE violation: missing ID_.");
+ }
+ break;
+ case 'script':
+ xmode = 'script';
+ advance('>');
+ indent = nexttoken.from;
+ if (a.lang) {
+ warning("lang is deprecated.", token);
+ }
+ if (option.adsafe && stack.length !== 1) {
+ warning("ADsafe script placement violation.", token);
+ }
+ if (a.src) {
+ if (option.adsafe && (!adsafe_may || !approved[a.src])) {
+ warning("ADsafe unapproved script source.", token);
+ }
+ if (a.type) {
+ warning("type is unnecessary.", token);
+ }
+ } else {
+ if (adsafe_went) {
+ error("ADsafe script violation.", token);
+ }
+ statements('script');
+ }
+ xmode = 'html';
+ advance('</');
+ if (!nexttoken.identifier && nexttoken.value !== 'script') {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, 'script', nexttoken.value);
+ }
+ advance();
+ xmode = 'outer';
+ break;
+ case 'style':
+ xmode = 'style';
+ advance('>');
+ styles();
+ xmode = 'html';
+ advance('</');
+ if (!nexttoken.identifier && nexttoken.value !== 'style') {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, 'style', nexttoken.value);
+ }
+ advance();
+ xmode = 'outer';
+ break;
+ case 'input':
+ switch (a.type) {
+ case 'radio':
+ case 'checkbox':
+ case 'button':
+ case 'reset':
+ case 'submit':
+ break;
+ case 'text':
+ case 'file':
+ case 'password':
+ case 'file':
+ case 'hidden':
+ case 'image':
+ if (option.adsafe && a.autocomplete !== 'off') {
+ warning("ADsafe autocomplete violation.");
+ }
+ break;
+ default:
+ warning("Bad input type.");
+ }
+ break;
+ case 'applet':
+ case 'body':
+ case 'embed':
+ case 'frame':
+ case 'frameset':
+ case 'head':
+ case 'iframe':
+ case 'noembed':
+ case 'noframes':
+ case 'object':
+ case 'param':
+ if (option.adsafe) {
+ warning("ADsafe violation: Disallowed tag: " + n);
+ }
+ break;
+ }
+ }
+
+
+ function closetag(n) {
+ return '</' + n + '>';
+ }
+
+ function html() {
+ var a, attributes, e, n, q, t, v, w = option.white, wmode;
+ xmode = 'html';
+ xquote = '';
+ stack = null;
+ for (;;) {
+ switch (nexttoken.value) {
+ case '<':
+ xmode = 'html';
+ advance('<');
+ attributes = {};
+ t = nexttoken;
+ if (!t.identifier) {
+ warning("Bad identifier {a}.", t, t.value);
+ }
+ n = t.value;
+ if (option.cap) {
+ n = n.toLowerCase();
+ }
+ t.name = n;
+ advance();
+ if (!stack) {
+ stack = [];
+ doBegin(n);
+ }
+ v = htmltag[n];
+ if (typeof v !== 'object') {
+ error("Unrecognized tag '<{a}>'.", t, n);
+ }
+ e = v.empty;
+ t.type = n;
+ for (;;) {
+ if (nexttoken.id === '/') {
+ advance('/');
+ if (nexttoken.id !== '>') {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, '>', nexttoken.value);
+ }
+ break;
+ }
+ if (nexttoken.id && nexttoken.id.substr(0, 1) === '>') {
+ break;
+ }
+ if (!nexttoken.identifier) {
+ if (nexttoken.id === '(end)' || nexttoken.id === '(error)') {
+ error("Missing '>'.", nexttoken);
+ }
+ warning("Bad identifier.");
+ }
+ option.white = true;
+ nonadjacent(token, nexttoken);
+ a = nexttoken.value;
+ option.white = w;
+ advance();
+ if (!option.cap && a !== a.toLowerCase()) {
+ warning("Attribute '{a}' not all lower case.", nexttoken, a);
+ }
+ a = a.toLowerCase();
+ xquote = '';
+ if (is_own(attributes, a)) {
+ warning("Attribute '{a}' repeated.", nexttoken, a);
+ }
+ if (a.slice(0, 2) === 'on') {
+ if (!option.on) {
+ warning("Avoid HTML event handlers.");
+ }
+ xmode = 'scriptstring';
+ advance('=');
+ q = nexttoken.id;
+ if (q !== '"' && q !== "'") {
+ error("Missing quote.");
+ }
+ xquote = q;
+ wmode = option.white;
+ option.white = false;
+ advance(q);
+ statements('on');
+ option.white = wmode;
+ if (nexttoken.id !== q) {
+ error("Missing close quote on script attribute.");
+ }
+ xmode = 'html';
+ xquote = '';
+ advance(q);
+ v = false;
+ } else if (a === 'style') {
+ xmode = 'scriptstring';
+ advance('=');
+ q = nexttoken.id;
+ if (q !== '"' && q !== "'") {
+ error("Missing quote.");
+ }
+ xmode = 'styleproperty';
+ xquote = q;
+ advance(q);
+ substyle();
+ xmode = 'html';
+ xquote = '';
+ advance(q);
+ v = false;
+ } else {
+ if (nexttoken.id === '=') {
+ advance('=');
+ v = nexttoken.value;
+ if (!nexttoken.identifier &&
+ nexttoken.id !== '"' &&
+ nexttoken.id !== '\'' &&
+ nexttoken.type !== '(string)' &&
+ nexttoken.type !== '(number)' &&
+ nexttoken.type !== '(color)') {
+ warning("Expected an attribute value and instead saw '{a}'.", token, a);
+ }
+ advance();
+ } else {
+ v = true;
+ }
+ }
+ attributes[a] = v;
+ doAttribute(n, a, v);
+ }
+ doTag(n, attributes);
+ if (!e) {
+ stack.push(t);
+ }
+ xmode = 'outer';
+ advance('>');
+ break;
+ case '</':
+ xmode = 'html';
+ advance('</');
+ if (!nexttoken.identifier) {
+ warning("Bad identifier.");
+ }
+ n = nexttoken.value;
+ if (option.cap) {
+ n = n.toLowerCase();
+ }
+ advance();
+ if (!stack) {
+ error("Unexpected '{a}'.", nexttoken, closetag(n));
+ }
+ t = stack.pop();
+ if (!t) {
+ error("Unexpected '{a}'.", nexttoken, closetag(n));
+ }
+ if (t.name !== n) {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, closetag(t.name), closetag(n));
+ }
+ if (nexttoken.id !== '>') {
+ error("Missing '{a}'.", nexttoken, '>');
+ }
+ xmode = 'outer';
+ advance('>');
+ break;
+ case '<!':
+ if (option.safe) {
+ warning("ADsafe HTML violation.");
+ }
+ xmode = 'html';
+ for (;;) {
+ advance();
+ if (nexttoken.id === '>' || nexttoken.id === '(end)') {
+ break;
+ }
+ if (nexttoken.value.indexOf('--') >= 0) {
+ warning("Unexpected --.");
+ }
+ if (nexttoken.value.indexOf('<') >= 0) {
+ warning("Unexpected <.");
+ }
+ if (nexttoken.value.indexOf('>') >= 0) {
+ warning("Unexpected >.");
+ }
+ }
+ xmode = 'outer';
+ advance('>');
+ break;
+ case '(end)':
+ return;
+ default:
+ if (nexttoken.id === '(end)') {
+ error("Missing '{a}'.", nexttoken,
+ '</' + stack[stack.length - 1].value + '>');
+ } else {
+ advance();
+ }
+ }
+ if (stack && stack.length === 0 && (option.adsafe ||
+ !option.fragment || nexttoken.id === '(end)')) {
+ break;
+ }
+ }
+ if (nexttoken.id !== '(end)') {
+ error("Unexpected material after the end.");
+ }
+ }
+
+
+// Build the syntax table by declaring the syntactic elements of the language.
+
+ type('(number)', idValue);
+ type('(string)', idValue);
+
+ syntax['(identifier)'] = {
+ type: '(identifier)',
+ lbp: 0,
+ identifier: true,
+ nud: function () {
+ var v = this.value,
+ s = scope[v],
+ f;
+ if (typeof s === 'function') {
+ s = undefined;
+ } else if (typeof s === 'boolean') {
+ f = funct;
+ funct = functions[0];
+ addlabel(v, 'var');
+ s = funct;
+ funct = f;
+ }
+
+// The name is in scope and defined in the current function.
+
+ if (funct === s) {
+
+// Change 'unused' to 'var', and reject labels.
+
+ switch (funct[v]) {
+ case 'unused':
+ funct[v] = 'var';
+ break;
+ case 'label':
+ warning("'{a}' is a statement label.", token, v);
+ break;
+ }
+
+// The name is not defined in the function. If we are in the global scope,
+// then we have an undefined variable.
+
+ } else if (funct['(global)']) {
+ if (option.undef && predefined[v] !== 'boolean') {
+ warning("'{a}' is not defined.", token, v);
+ }
+ note_implied(token);
+
+// If the name is already defined in the current
+// function, but not as outer, then there is a scope error.
+
+ } else {
+ switch (funct[v]) {
+ case 'closure':
+ case 'function':
+ case 'var':
+ case 'unused':
+ warning("'{a}' used out of scope.", token, v);
+ break;
+ case 'label':
+ warning("'{a}' is a statement label.", token, v);
+ break;
+ case 'outer':
+ case 'global':
+ break;
+ default:
+
+// If the name is defined in an outer function, make an outer entry, and if
+// it was unused, make it var.
+
+ if (s === true) {
+ funct[v] = true;
+ } else if (s === null) {
+ warning("'{a}' is not allowed.", token, v);
+ note_implied(token);
+ } else if (typeof s !== 'object') {
+ if (option.undef) {
+ warning("'{a}' is not defined.", token, v);
+ } else {
+ funct[v] = true;
+ }
+ note_implied(token);
+ } else {
+ switch (s[v]) {
+ case 'function':
+ case 'var':
+ case 'unused':
+ s[v] = 'closure';
+ funct[v] = s['(global)'] ? 'global' : 'outer';
+ break;
+ case 'closure':
+ case 'parameter':
+ funct[v] = s['(global)'] ? 'global' : 'outer';
+ break;
+ case 'label':
+ warning("'{a}' is a statement label.", token, v);
+ }
+ }
+ }
+ }
+ return this;
+ },
+ led: function () {
+ error("Expected an operator and instead saw '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ };
+
+ type('(regexp)', function () {
+ return this;
+ });
+
+ delim('(endline)');
+ delim('(begin)');
+ delim('(end)').reach = true;
+ delim('</').reach = true;
+ delim('<!');
+ delim('<!--');
+ delim('-->');
+ delim('(error)').reach = true;
+ delim('}').reach = true;
+ delim(')');
+ delim(']');
+ delim('"').reach = true;
+ delim("'").reach = true;
+ delim(';');
+ delim(':').reach = true;
+ delim(',');
+ delim('#');
+ delim('@');
+ reserve('else');
+ reserve('case').reach = true;
+ reserve('catch');
+ reserve('default').reach = true;
+ reserve('finally');
+ reservevar('arguments');
+ reservevar('eval');
+ reservevar('false');
+ reservevar('Infinity');
+ reservevar('NaN');
+ reservevar('null');
+ reservevar('this');
+ reservevar('true');
+ reservevar('undefined');
+ assignop('=', 'assign', 20);
+ assignop('+=', 'assignadd', 20);
+ assignop('-=', 'assignsub', 20);
+ assignop('*=', 'assignmult', 20);
+ assignop('/=', 'assigndiv', 20).nud = function () {
+ error("A regular expression literal can be confused with '/='.");
+ };
+ assignop('%=', 'assignmod', 20);
+ bitwiseassignop('&=', 'assignbitand', 20);
+ bitwiseassignop('|=', 'assignbitor', 20);
+ bitwiseassignop('^=', 'assignbitxor', 20);
+ bitwiseassignop('<<=', 'assignshiftleft', 20);
+ bitwiseassignop('>>=', 'assignshiftright', 20);
+ bitwiseassignop('>>>=', 'assignshiftrightunsigned', 20);
+ infix('?', function (left, that) {
+ that.left = left;
+ that.right = parse(10);
+ advance(':');
+ that['else'] = parse(10);
+ return that;
+ }, 30);
+
+ infix('||', 'or', 40);
+ infix('&&', 'and', 50);
+ bitwise('|', 'bitor', 70);
+ bitwise('^', 'bitxor', 80);
+ bitwise('&', 'bitand', 90);
+ relation('==', function (left, right) {
+ if (option.eqeqeq) {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ this, '===', '==');
+ } else if (isPoorRelation(left)) {
+ warning("Use '{a}' to compare with '{b}'.",
+ this, '===', left.value);
+ } else if (isPoorRelation(right)) {
+ warning("Use '{a}' to compare with '{b}'.",
+ this, '===', right.value);
+ }
+ return this;
+ });
+ relation('===');
+ relation('!=', function (left, right) {
+ if (option.eqeqeq) {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ this, '!==', '!=');
+ } else if (isPoorRelation(left)) {
+ warning("Use '{a}' to compare with '{b}'.",
+ this, '!==', left.value);
+ } else if (isPoorRelation(right)) {
+ warning("Use '{a}' to compare with '{b}'.",
+ this, '!==', right.value);
+ }
+ return this;
+ });
+ relation('!==');
+ relation('<');
+ relation('>');
+ relation('<=');
+ relation('>=');
+ bitwise('<<', 'shiftleft', 120);
+ bitwise('>>', 'shiftright', 120);
+ bitwise('>>>', 'shiftrightunsigned', 120);
+ infix('in', 'in', 120);
+ infix('instanceof', 'instanceof', 120);
+ infix('+', function (left, that) {
+ var right = parse(130);
+ if (left && right && left.id === '(string)' && right.id === '(string)') {
+ left.value += right.value;
+ left.character = right.character;
+ if (jx.test(left.value)) {
+ warning("JavaScript URL.", left);
+ }
+ return left;
+ }
+ that.left = left;
+ that.right = right;
+ return that;
+ }, 130);
+ prefix('+', 'num');
+ infix('-', 'sub', 130);
+ prefix('-', 'neg');
+ infix('*', 'mult', 140);
+ infix('/', 'div', 140);
+ infix('%', 'mod', 140);
+
+ suffix('++', 'postinc');
+ prefix('++', 'preinc');
+ syntax['++'].exps = true;
+
+ suffix('--', 'postdec');
+ prefix('--', 'predec');
+ syntax['--'].exps = true;
+ prefix('delete', function () {
+ var p = parse(0);
+ if (!p || (p.id !== '.' && p.id !== '[')) {
+ warning("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, '.', nexttoken.value);
+ }
+ this.first = p;
+ return this;
+ }).exps = true;
+
+
+ prefix('~', function () {
+ if (option.bitwise) {
+ warning("Unexpected '{a}'.", this, '~');
+ }
+ parse(150);
+ return this;
+ });
+ prefix('!', function () {
+ this.right = parse(150);
+ this.arity = 'unary';
+ if (bang[this.right.id] === true) {
+ warning("Confusing use of '{a}'.", this, '!');
+ }
+ return this;
+ });
+ prefix('typeof', 'typeof');
+ prefix('new', function () {
+ var c = parse(155), i;
+ if (c && c.id !== 'function') {
+ if (c.identifier) {
+ c['new'] = true;
+ switch (c.value) {
+ case 'Object':
+ warning("Use the object literal notation {}.", token);
+ break;
+ case 'Array':
+ if (nexttoken.id !== '(') {
+ warning("Use the array literal notation [].", token);
+ } else {
+ advance('(');
+ if (nexttoken.id === ')') {
+ warning("Use the array literal notation [].", token);
+ } else {
+ i = parse(0);
+ c.dimension = i;
+ if ((i.id === '(number)' && /[.+\-Ee]/.test(i.value)) ||
+ (i.id === '-' && !i.right) ||
+ i.id === '(string)' || i.id === '[' ||
+ i.id === '{' || i.id === 'true' ||
+ i.id === 'false' ||
+ i.id === 'null' || i.id === 'undefined' ||
+ i.id === 'Infinity') {
+ warning("Use the array literal notation [].", token);
+ }
+ if (nexttoken.id !== ')') {
+ error("Use the array literal notation [].", token);
+ }
+ }
+ advance(')');
+ }
+ this.first = c;
+ return this;
+ case 'Number':
+ case 'String':
+ case 'Boolean':
+ case 'Math':
+ case 'JSON':
+ warning("Do not use {a} as a constructor.", token, c.value);
+ break;
+ case 'Function':
+ if (!option.evil) {
+ warning("The Function constructor is eval.");
+ }
+ break;
+ case 'Date':
+ case 'RegExp':
+ break;
+ default:
+ if (c.id !== 'function') {
+ i = c.value.substr(0, 1);
+ if (option.newcap && (i < 'A' || i > 'Z')) {
+ warning(
+ "A constructor name should start with an uppercase letter.",
+ token);
+ }
+ }
+ }
+ } else {
+ if (c.id !== '.' && c.id !== '[' && c.id !== '(') {
+ warning("Bad constructor.", token);
+ }
+ }
+ } else {
+ warning("Weird construction. Delete 'new'.", this);
+ }
+ adjacent(token, nexttoken);
+ if (nexttoken.id !== '(') {
+ warning("Missing '()' invoking a constructor.");
+ }
+ this.first = c;
+ return this;
+ });
+ syntax['new'].exps = true;
+
+ infix('.', function (left, that) {
+ adjacent(prevtoken, token);
+ var m = identifier();
+ if (typeof m === 'string') {
+ countMember(m);
+ }
+ that.left = left;
+ that.right = m;
+ if (!option.evil && left && left.value === 'document' &&
+ (m === 'write' || m === 'writeln')) {
+ warning("document.write can be a form of eval.", left);
+ } else if (option.adsafe) {
+ if (left && left.value === 'ADSAFE') {
+ if (m === 'id' || m === 'lib') {
+ warning("ADsafe violation.", that);
+ } else if (m === 'go') {
+ if (xmode !== 'script') {
+ warning("ADsafe violation.", that);
+ } else if (adsafe_went || nexttoken.id !== '(' ||
+ peek(0).id !== '(string)' ||
+ peek(0).value !== adsafe_id ||
+ peek(1).id !== ',') {
+ error("ADsafe violation: go.", that);
+ }
+ adsafe_went = true;
+ adsafe_may = false;
+ }
+ }
+ }
+ if (!option.evil && (m === 'eval' || m === 'execScript')) {
+ warning('eval is evil.');
+ } else if (option.safe) {
+ for (;;) {
+ if (banned[m] === true) {
+ warning("ADsafe restricted word '{a}'.", token, m);
+ }
+ if (typeof predefined[left.value] !== 'boolean' ||
+ nexttoken.id === '(') {
+ break;
+ }
+ if (standard_member[m] === true) {
+ if (nexttoken.id === '.') {
+ warning("ADsafe violation.", that);
+ }
+ break;
+ }
+ if (nexttoken.id !== '.') {
+ warning("ADsafe violation.", that);
+ break;
+ }
+ advance('.');
+ token.left = that;
+ token.right = m;
+ that = token;
+ m = identifier();
+ if (typeof m === 'string') {
+ countMember(m);
+ }
+ }
+ }
+ return that;
+ }, 160, true);
+
+ infix('(', function (left, that) {
+ adjacent(prevtoken, token);
+ nospace();
+ var n = 0,
+ p = [];
+ if (left) {
+ if (left.type === '(identifier)') {
+ if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) {
+ if (left.value !== 'Number' && left.value !== 'String' &&
+ left.value !== 'Boolean' &&
+ left.value !== 'Date') {
+ if (left.value === 'Math') {
+ warning("Math is not a function.", left);
+ } else if (option.newcap) {
+ warning(
+"Missing 'new' prefix when invoking a constructor.", left);
+ }
+ }
+ }
+ } else if (left.id === '.') {
+ if (option.safe && left.left.value === 'Math' &&
+ left.right === 'random') {
+ warning("ADsafe violation.", left);
+ }
+ }
+ }
+ if (nexttoken.id !== ')') {
+ for (;;) {
+ p[p.length] = parse(10);
+ n += 1;
+ if (nexttoken.id !== ',') {
+ break;
+ }
+ comma();
+ }
+ }
+ advance(')');
+ if (option.immed && left.id === 'function' && nexttoken.id !== ')') {
+ warning("Wrap the entire immediate function invocation in parens.",
+ that);
+ }
+ nospace(prevtoken, token);
+ if (typeof left === 'object') {
+ if (left.value === 'parseInt' && n === 1) {
+ warning("Missing radix parameter.", left);
+ }
+ if (!option.evil) {
+ if (left.value === 'eval' || left.value === 'Function' ||
+ left.value === 'execScript') {
+ warning("eval is evil.", left);
+ } else if (p[0] && p[0].id === '(string)' &&
+ (left.value === 'setTimeout' ||
+ left.value === 'setInterval')) {
+ warning(
+ "Implied eval is evil. Pass a function instead of a string.", left);
+ }
+ }
+ if (!left.identifier && left.id !== '.' && left.id !== '[' &&
+ left.id !== '(' && left.id !== '&&' && left.id !== '||' &&
+ left.id !== '?') {
+ warning("Bad invocation.", left);
+ }
+ }
+ that.left = left;
+ return that;
+ }, 155, true).exps = true;
+
+ prefix('(', function () {
+ nospace();
+ var v = parse(0);
+ advance(')', this);
+ nospace(prevtoken, token);
+ if (option.immed && v.id === 'function') {
+ if (nexttoken.id === '(') {
+ warning(
+"Move the invocation into the parens that contain the function.", nexttoken);
+ } else {
+ warning(
+"Do not wrap function literals in parens unless they are to be immediately invoked.",
+ this);
+ }
+ }
+ return v;
+ });
+
+ infix('[', function (left, that) {
+ nospace();
+ var e = parse(0), s;
+ if (e && e.type === '(string)') {
+ if (option.safe && banned[e.value] === true) {
+ warning("ADsafe restricted word '{a}'.", that, e.value);
+ } else if (!option.evil &&
+ (e.value === 'eval' || e.value === 'execScript')) {
+ warning("eval is evil.", that);
+ } else if (option.safe &&
+ (e.value.charAt(0) === '_' || e.value.charAt(0) === '-')) {
+ warning("ADsafe restricted subscript '{a}'.", that, e.value);
+ }
+ countMember(e.value);
+ if (!option.sub && ix.test(e.value)) {
+ s = syntax[e.value];
+ if (!s || !s.reserved) {
+ warning("['{a}'] is better written in dot notation.",
+ e, e.value);
+ }
+ }
+ } else if (!e || e.type !== '(number)' || e.value < 0) {
+ if (option.safe) {
+ warning('ADsafe subscripting.');
+ }
+ }
+ advance(']', that);
+ nospace(prevtoken, token);
+ that.left = left;
+ that.right = e;
+ return that;
+ }, 160, true);
+
+ prefix('[', function () {
+ var b = token.line !== nexttoken.line;
+ this.first = [];
+ if (b) {
+ indent += option.indent;
+ if (nexttoken.from === indent + option.indent) {
+ indent += option.indent;
+ }
+ }
+ while (nexttoken.id !== '(end)') {
+ while (nexttoken.id === ',') {
+ warning("Extra comma.");
+ advance(',');
+ }
+ if (nexttoken.id === ']') {
+ break;
+ }
+ if (b && token.line !== nexttoken.line) {
+ indentation();
+ }
+ this.first.push(parse(10));
+ if (nexttoken.id === ',') {
+ comma();
+ if (nexttoken.id === ']') {
+ warning("Extra comma.", token);
+ break;
+ }
+ } else {
+ break;
+ }
+ }
+ if (b) {
+ indent -= option.indent;
+ indentation();
+ }
+ advance(']', this);
+ return this;
+ }, 160);
+
+ (function (x) {
+ x.nud = function () {
+ var b, i, s, seen = {};
+ b = token.line !== nexttoken.line;
+ if (b) {
+ indent += option.indent;
+ if (nexttoken.from === indent + option.indent) {
+ indent += option.indent;
+ }
+ }
+ for (;;) {
+ if (nexttoken.id === '}') {
+ break;
+ }
+ if (b) {
+ indentation();
+ }
+ i = optionalidentifier(true);
+ if (!i) {
+ if (nexttoken.id === '(string)') {
+ i = nexttoken.value;
+ if (ix.test(i)) {
+ s = syntax[i];
+ }
+ advance();
+ } else if (nexttoken.id === '(number)') {
+ i = nexttoken.value.toString();
+ advance();
+ } else {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, '}', nexttoken.value);
+ }
+ }
+ if (seen[i] === true) {
+ warning("Duplicate member '{a}'.", nexttoken, i);
+ }
+ seen[i] = true;
+ countMember(i);
+ advance(':');
+ nonadjacent(token, nexttoken);
+ parse(10);
+ if (nexttoken.id === ',') {
+ comma();
+ if (nexttoken.id === ',' || nexttoken.id === '}') {
+ warning("Extra comma.", token);
+ }
+ } else {
+ break;
+ }
+ }
+ if (b) {
+ indent -= option.indent;
+ indentation();
+ }
+ advance('}', this);
+ return this;
+ };
+ x.fud = function () {
+ error("Expected to see a statement and instead saw a block.", token);
+ };
+ }(delim('{')));
+
+
+ function varstatement(prefix) {
+
+// JavaScript does not have block scope. It only has function scope. So,
+// declaring a variable in a block can have unexpected consequences.
+
+ var id, name, value;
+
+ if (funct['(onevar)'] && option.onevar) {
+ warning("Too many var statements.");
+ } else if (!funct['(global)']) {
+ funct['(onevar)'] = true;
+ }
+ this.first = [];
+ for (;;) {
+ nonadjacent(token, nexttoken);
+ id = identifier();
+ if (funct['(global)'] && predefined[id] === false) {
+ warning("Redefinition of '{a}'.", token, id);
+ }
+ addlabel(id, 'unused');
+ if (prefix) {
+ break;
+ }
+ name = token;
+ this.first.push(token);
+ if (nexttoken.id === '=') {
+ nonadjacent(token, nexttoken);
+ advance('=');
+ nonadjacent(token, nexttoken);
+ if (nexttoken.id === 'undefined') {
+ warning("It is not necessary to initialize '{a}' to 'undefined'.", token, id);
+ }
+ if (peek(0).id === '=' && nexttoken.identifier) {
+ error("Variable {a} was not declared correctly.",
+ nexttoken, nexttoken.value);
+ }
+ value = parse(0);
+ name.first = value;
+ }
+ if (nexttoken.id !== ',') {
+ break;
+ }
+ comma();
+ }
+ return this;
+ }
+
+
+ stmt('var', varstatement).exps = true;
+
+
+ function functionparams() {
+ var i, t = nexttoken, p = [];
+ advance('(');
+ nospace();
+ if (nexttoken.id === ')') {
+ advance(')');
+ nospace(prevtoken, token);
+ return;
+ }
+ for (;;) {
+ i = identifier();
+ p.push(i);
+ addlabel(i, 'parameter');
+ if (nexttoken.id === ',') {
+ comma();
+ } else {
+ advance(')', t);
+ nospace(prevtoken, token);
+ return p;
+ }
+ }
+ }
+
+ function doFunction(i) {
+ var s = scope;
+ scope = Object.create(s);
+ funct = {
+ '(name)' : i || '"' + anonname + '"',
+ '(line)' : nexttoken.line,
+ '(context)' : funct,
+ '(breakage)': 0,
+ '(loopage)' : 0,
+ '(scope)' : scope
+ };
+ token.funct = funct;
+ functions.push(funct);
+ if (i) {
+ addlabel(i, 'function');
+ }
+ funct['(params)'] = functionparams();
+
+ block(false);
+ scope = s;
+ funct['(last)'] = token.line;
+ funct = funct['(context)'];
+ }
+
+
+ blockstmt('function', function () {
+ if (inblock) {
+ warning(
+"Function statements cannot be placed in blocks. Use a function expression or move the statement to the top of the outer function.", token);
+
+ }
+ var i = identifier();
+ adjacent(token, nexttoken);
+ addlabel(i, 'unused');
+ doFunction(i);
+ if (nexttoken.id === '(' && nexttoken.line === token.line) {
+ error(
+"Function statements are not invocable. Wrap the whole function invocation in parens.");
+ }
+ return this;
+ });
+
+ prefix('function', function () {
+ var i = optionalidentifier();
+ if (i) {
+ adjacent(token, nexttoken);
+ } else {
+ nonadjacent(token, nexttoken);
+ }
+ doFunction(i);
+ if (funct['(loopage)']) {
+ warning("Don't make functions within a loop.");
+ }
+ return this;
+ });
+
+ blockstmt('if', function () {
+ var t = nexttoken;
+ advance('(');
+ nonadjacent(this, t);
+ nospace();
+ parse(20);
+ if (nexttoken.id === '=') {
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance('=');
+ parse(20);
+ }
+ advance(')', t);
+ nospace(prevtoken, token);
+ block(true);
+ if (nexttoken.id === 'else') {
+ nonadjacent(token, nexttoken);
+ advance('else');
+ if (nexttoken.id === 'if' || nexttoken.id === 'switch') {
+ statement(true);
+ } else {
+ block(true);
+ }
+ }
+ return this;
+ });
+
+ blockstmt('try', function () {
+ var b, e, s;
+ if (option.adsafe) {
+ warning("ADsafe try violation.", this);
+ }
+ block(false);
+ if (nexttoken.id === 'catch') {
+ advance('catch');
+ nonadjacent(token, nexttoken);
+ advance('(');
+ s = scope;
+ scope = Object.create(s);
+ e = nexttoken.value;
+ if (nexttoken.type !== '(identifier)') {
+ warning("Expected an identifier and instead saw '{a}'.",
+ nexttoken, e);
+ } else {
+ addlabel(e, 'exception');
+ }
+ advance();
+ advance(')');
+ block(false);
+ b = true;
+ scope = s;
+ }
+ if (nexttoken.id === 'finally') {
+ advance('finally');
+ block(false);
+ return;
+ } else if (!b) {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, 'catch', nexttoken.value);
+ }
+ return this;
+ });
+
+ blockstmt('while', function () {
+ var t = nexttoken;
+ funct['(breakage)'] += 1;
+ funct['(loopage)'] += 1;
+ advance('(');
+ nonadjacent(this, t);
+ nospace();
+ parse(20);
+ if (nexttoken.id === '=') {
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance('=');
+ parse(20);
+ }
+ advance(')', t);
+ nospace(prevtoken, token);
+ block(true);
+ funct['(breakage)'] -= 1;
+ funct['(loopage)'] -= 1;
+ return this;
+ }).labelled = true;
+
+ reserve('with');
+
+ blockstmt('switch', function () {
+ var t = nexttoken,
+ g = false;
+ funct['(breakage)'] += 1;
+ advance('(');
+ nonadjacent(this, t);
+ nospace();
+ this.condition = parse(20);
+ advance(')', t);
+ nospace(prevtoken, token);
+ nonadjacent(token, nexttoken);
+ t = nexttoken;
+ advance('{');
+ nonadjacent(token, nexttoken);
+ indent += option.indent;
+ this.cases = [];
+ for (;;) {
+ switch (nexttoken.id) {
+ case 'case':
+ switch (funct['(verb)']) {
+ case 'break':
+ case 'case':
+ case 'continue':
+ case 'return':
+ case 'switch':
+ case 'throw':
+ break;
+ default:
+ warning(
+ "Expected a 'break' statement before 'case'.",
+ token);
+ }
+ indentation(-option.indent);
+ advance('case');
+ this.cases.push(parse(20));
+ g = true;
+ advance(':');
+ funct['(verb)'] = 'case';
+ break;
+ case 'default':
+ switch (funct['(verb)']) {
+ case 'break':
+ case 'continue':
+ case 'return':
+ case 'throw':
+ break;
+ default:
+ warning(
+ "Expected a 'break' statement before 'default'.",
+ token);
+ }
+ indentation(-option.indent);
+ advance('default');
+ g = true;
+ advance(':');
+ break;
+ case '}':
+ indent -= option.indent;
+ indentation();
+ advance('}', t);
+ if (this.cases.length === 1 || this.condition.id === 'true' ||
+ this.condition.id === 'false') {
+ warning("This 'switch' should be an 'if'.", this);
+ }
+ funct['(breakage)'] -= 1;
+ funct['(verb)'] = undefined;
+ return;
+ case '(end)':
+ error("Missing '{a}'.", nexttoken, '}');
+ return;
+ default:
+ if (g) {
+ switch (token.id) {
+ case ',':
+ error("Each value should have its own case label.");
+ return;
+ case ':':
+ statements();
+ break;
+ default:
+ error("Missing ':' on a case clause.", token);
+ }
+ } else {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, 'case', nexttoken.value);
+ }
+ }
+ }
+ }).labelled = true;
+
+ stmt('debugger', function () {
+ if (!option.debug) {
+ warning("All 'debugger' statements should be removed.");
+ }
+ return this;
+ }).exps = true;
+
+ (function () {
+ var x = stmt('do', function () {
+ funct['(breakage)'] += 1;
+ funct['(loopage)'] += 1;
+ this.first = block(true);
+ advance('while');
+ var t = nexttoken;
+ nonadjacent(token, t);
+ advance('(');
+ nospace();
+ parse(20);
+ if (nexttoken.id === '=') {
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance('=');
+ parse(20);
+ }
+ advance(')', t);
+ nospace(prevtoken, token);
+ funct['(breakage)'] -= 1;
+ funct['(loopage)'] -= 1;
+ return this;
+ });
+ x.labelled = true;
+ x.exps = true;
+ }());
+
+ blockstmt('for', function () {
+ var f = option.forin, s, t = nexttoken;
+ funct['(breakage)'] += 1;
+ funct['(loopage)'] += 1;
+ advance('(');
+ nonadjacent(this, t);
+ nospace();
+ if (peek(nexttoken.id === 'var' ? 1 : 0).id === 'in') {
+ if (nexttoken.id === 'var') {
+ advance('var');
+ varstatement(true);
+ } else {
+ switch (funct[nexttoken.value]) {
+ case 'unused':
+ funct[nexttoken.value] = 'var';
+ break;
+ case 'var':
+ break;
+ default:
+ warning("Bad for in variable '{a}'.",
+ nexttoken, nexttoken.value);
+ }
+ advance();
+ }
+ advance('in');
+ parse(20);
+ advance(')', t);
+ s = block(true);
+ if (!f && (s.length > 1 || typeof s[0] !== 'object' ||
+ s[0].value !== 'if')) {
+ warning("The body of a for in should be wrapped in an if statement to filter unwanted properties from the prototype.", this);
+ }
+ funct['(breakage)'] -= 1;
+ funct['(loopage)'] -= 1;
+ return this;
+ } else {
+ if (nexttoken.id !== ';') {
+ if (nexttoken.id === 'var') {
+ advance('var');
+ varstatement();
+ } else {
+ for (;;) {
+ parse(0, 'for');
+ if (nexttoken.id !== ',') {
+ break;
+ }
+ comma();
+ }
+ }
+ }
+ nolinebreak(token);
+ advance(';');
+ if (nexttoken.id !== ';') {
+ parse(20);
+ if (nexttoken.id === '=') {
+ warning("Expected a conditional expression and instead saw an assignment.");
+ advance('=');
+ parse(20);
+ }
+ }
+ nolinebreak(token);
+ advance(';');
+ if (nexttoken.id === ';') {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, ')', ';');
+ }
+ if (nexttoken.id !== ')') {
+ for (;;) {
+ parse(0, 'for');
+ if (nexttoken.id !== ',') {
+ break;
+ }
+ comma();
+ }
+ }
+ advance(')', t);
+ nospace(prevtoken, token);
+ block(true);
+ funct['(breakage)'] -= 1;
+ funct['(loopage)'] -= 1;
+ return this;
+ }
+ }).labelled = true;
+
+
+ stmt('break', function () {
+ var v = nexttoken.value;
+ if (funct['(breakage)'] === 0) {
+ warning("Unexpected '{a}'.", nexttoken, this.value);
+ }
+ nolinebreak(this);
+ if (nexttoken.id !== ';') {
+ if (token.line === nexttoken.line) {
+ if (funct[v] !== 'label') {
+ warning("'{a}' is not a statement label.", nexttoken, v);
+ } else if (scope[v] !== funct) {
+ warning("'{a}' is out of scope.", nexttoken, v);
+ }
+ this.first = nexttoken;
+ advance();
+ }
+ }
+ reachable('break');
+ return this;
+ }).exps = true;
+
+
+ stmt('continue', function () {
+ var v = nexttoken.value;
+ if (funct['(breakage)'] === 0) {
+ warning("Unexpected '{a}'.", nexttoken, this.value);
+ }
+ nolinebreak(this);
+ if (nexttoken.id !== ';') {
+ if (token.line === nexttoken.line) {
+ if (funct[v] !== 'label') {
+ warning("'{a}' is not a statement label.", nexttoken, v);
+ } else if (scope[v] !== funct) {
+ warning("'{a}' is out of scope.", nexttoken, v);
+ }
+ this.first = nexttoken;
+ advance();
+ }
+ } else if (!funct['(loopage)']) {
+ warning("Unexpected '{a}'.", nexttoken, this.value);
+ }
+ reachable('continue');
+ return this;
+ }).exps = true;
+
+
+ stmt('return', function () {
+ nolinebreak(this);
+ if (nexttoken.id === '(regexp)') {
+ warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator.");
+ }
+ if (nexttoken.id !== ';' && !nexttoken.reach) {
+ nonadjacent(token, nexttoken);
+ this.first = parse(20);
+ }
+ reachable('return');
+ return this;
+ }).exps = true;
+
+
+ stmt('throw', function () {
+ nolinebreak(this);
+ nonadjacent(token, nexttoken);
+ this.first = parse(20);
+ reachable('throw');
+ return this;
+ }).exps = true;
+
+ reserve('void');
+
+// Superfluous reserved words
+
+ reserve('class');
+ reserve('const');
+ reserve('enum');
+ reserve('export');
+ reserve('extends');
+ reserve('import');
+ reserve('super');
+
+ reserve('let');
+ reserve('yield');
+ reserve('implements');
+ reserve('interface');
+ reserve('package');
+ reserve('private');
+ reserve('protected');
+ reserve('public');
+ reserve('static');
+
+ function jsonValue() {
+
+ function jsonObject() {
+ var o = {}, t = nexttoken;
+ advance('{');
+ if (nexttoken.id !== '}') {
+ for (;;) {
+ if (nexttoken.id === '(end)') {
+ error("Missing '}' to match '{' from line {a}.",
+ nexttoken, t.line);
+ } else if (nexttoken.id === '}') {
+ warning("Unexpected comma.", token);
+ break;
+ } else if (nexttoken.id === ',') {
+ error("Unexpected comma.", nexttoken);
+ } else if (nexttoken.id !== '(string)') {
+ warning("Expected a string and instead saw {a}.",
+ nexttoken, nexttoken.value);
+ }
+ if (o[nexttoken.value] === true) {
+ warning("Duplicate key '{a}'.",
+ nexttoken, nexttoken.value);
+ } else if (nexttoken.value === '__proto__') {
+ warning("Stupid key '{a}'.",
+ nexttoken, nexttoken.value);
+ } else {
+ o[nexttoken.value] = true;
+ }
+ advance();
+ advance(':');
+ jsonValue();
+ if (nexttoken.id !== ',') {
+ break;
+ }
+ advance(',');
+ }
+ }
+ advance('}');
+ }
+
+ function jsonArray() {
+ var t = nexttoken;
+ advance('[');
+ if (nexttoken.id !== ']') {
+ for (;;) {
+ if (nexttoken.id === '(end)') {
+ error("Missing ']' to match '[' from line {a}.",
+ nexttoken, t.line);
+ } else if (nexttoken.id === ']') {
+ warning("Unexpected comma.", token);
+ break;
+ } else if (nexttoken.id === ',') {
+ error("Unexpected comma.", nexttoken);
+ }
+ jsonValue();
+ if (nexttoken.id !== ',') {
+ break;
+ }
+ advance(',');
+ }
+ }
+ advance(']');
+ }
+
+ switch (nexttoken.id) {
+ case '{':
+ jsonObject();
+ break;
+ case '[':
+ jsonArray();
+ break;
+ case 'true':
+ case 'false':
+ case 'null':
+ case '(number)':
+ case '(string)':
+ advance();
+ break;
+ case '-':
+ advance('-');
+ if (token.character !== nexttoken.from) {
+ warning("Unexpected space after '-'.", token);
+ }
+ adjacent(token, nexttoken);
+ advance('(number)');
+ break;
+ default:
+ error("Expected a JSON value.", nexttoken);
+ }
+ }
+
+
+// The actual JSLINT function itself.
+
+ var itself = function (s, o) {
+ var a, i;
+ JSLINT.errors = [];
+ predefined = Object.create(standard);
+ if (o) {
+ a = o.predef;
+ if (a instanceof Array) {
+ for (i = 0; i < a.length; i += 1) {
+ predefined[a[i]] = true;
+ }
+ }
+ if (o.adsafe) {
+ o.safe = true;
+ }
+ if (o.safe) {
+ o.browser = false;
+ o.css = false;
+ o.debug = false;
+ o.devel = false;
+ o.eqeqeq = true;
+ o.evil = false;
+ o.forin = false;
+ o.nomen = true;
+ o.on = false;
+ o.rhino = false;
+ o.safe = true;
+ o.sidebar = false;
+ o.strict = true;
+ o.sub = false;
+ o.undef = true;
+ o.widget = false;
+ predefined.Date = null;
+ predefined['eval'] = null;
+ predefined.Function = null;
+ predefined.Object = null;
+ predefined.ADSAFE = false;
+ predefined.lib = false;
+ }
+ option = o;
+ } else {
+ option = {};
+ }
+ option.indent = option.indent || 4;
+ option.maxerr = option.maxerr || 50;
+ adsafe_id = '';
+ adsafe_may = false;
+ adsafe_went = false;
+ approved = {};
+ if (option.approved) {
+ for (i = 0; i < option.approved.length; i += 1) {
+ approved[option.approved[i]] = option.approved[i];
+ }
+ } else {
+ approved.test = 'test';
+ }
+ tab = '';
+ for (i = 0; i < option.indent; i += 1) {
+ tab += ' ';
+ }
+ indent = 1;
+ global = Object.create(predefined);
+ scope = global;
+ funct = {
+ '(global)': true,
+ '(name)': '(global)',
+ '(scope)': scope,
+ '(breakage)': 0,
+ '(loopage)': 0
+ };
+ functions = [funct];
+ ids = {};
+ urls = [];
+ src = false;
+ xmode = false;
+ stack = null;
+ member = {};
+ membersOnly = null;
+ implied = {};
+ inblock = false;
+ lookahead = [];
+ jsonmode = false;
+ warnings = 0;
+ lex.init(s);
+ prereg = true;
+ strict_mode = false;
+
+ prevtoken = token = nexttoken = syntax['(begin)'];
+ assume();
+
+ try {
+ advance();
+ if (nexttoken.value.charAt(0) === '<') {
+ html();
+ if (option.adsafe && !adsafe_went) {
+ warning("ADsafe violation: Missing ADSAFE.go.", this);
+ }
+ } else {
+ switch (nexttoken.id) {
+ case '{':
+ case '[':
+ option.laxbreak = true;
+ jsonmode = true;
+ jsonValue();
+ break;
+ case '@':
+ case '*':
+ case '#':
+ case '.':
+ case ':':
+ xmode = 'style';
+ advance();
+ if (token.id !== '@' || !nexttoken.identifier ||
+ nexttoken.value !== 'charset' || token.line !== 1 ||
+ token.from !== 1) {
+ error('A css file should begin with @charset "UTF-8";');
+ }
+ advance();
+ if (nexttoken.type !== '(string)' &&
+ nexttoken.value !== 'UTF-8') {
+ error('A css file should begin with @charset "UTF-8";');
+ }
+ advance();
+ advance(';');
+ styles();
+ break;
+
+ default:
+ if (option.adsafe && option.fragment) {
+ error("Expected '{a}' and instead saw '{b}'.",
+ nexttoken, '<div>', nexttoken.value);
+ }
+ statements('lib');
+ }
+ }
+ advance('(end)');
+ } catch (e) {
+ if (e) {
+ JSLINT.errors.push({
+ reason : e.message,
+ line : e.line || nexttoken.line,
+ character : e.character || nexttoken.from
+ }, null);
+ }
+ }
+ return JSLINT.errors.length === 0;
+ };
+
+ function is_array(o) {
+ return Object.prototype.toString.apply(o) === '[object Array]';
+ }
+
+ function to_array(o) {
+ var a = [], k;
+ for (k in o) {
+ if (is_own(o, k)) {
+ a.push(k);
+ }
+ }
+ return a;
+ }
+
+// Data summary.
+
+ itself.data = function () {
+
+ var data = {functions: []}, fu, globals, implieds = [], f, i, j,
+ members = [], n, unused = [], v;
+ if (itself.errors.length) {
+ data.errors = itself.errors;
+ }
+
+ if (jsonmode) {
+ data.json = true;
+ }
+
+ for (n in implied) {
+ if (is_own(implied, n)) {
+ implieds.push({
+ name: n,
+ line: implied[n]
+ });
+ }
+ }
+ if (implieds.length > 0) {
+ data.implieds = implieds;
+ }
+
+ if (urls.length > 0) {
+ data.urls = urls;
+ }
+
+ globals = to_array(scope);
+ if (globals.length > 0) {
+ data.globals = globals;
+ }
+
+ for (i = 1; i < functions.length; i += 1) {
+ f = functions[i];
+ fu = {};
+ for (j = 0; j < functionicity.length; j += 1) {
+ fu[functionicity[j]] = [];
+ }
+ for (n in f) {
+ if (is_own(f, n) && n.charAt(0) !== '(') {
+ v = f[n];
+ if (is_array(fu[v])) {
+ fu[v].push(n);
+ if (v === 'unused') {
+ unused.push({
+ name: n,
+ line: f['(line)'],
+ 'function': f['(name)']
+ });
+ }
+ }
+ }
+ }
+ for (j = 0; j < functionicity.length; j += 1) {
+ if (fu[functionicity[j]].length === 0) {
+ delete fu[functionicity[j]];
+ }
+ }
+ fu.name = f['(name)'];
+ fu.param = f['(params)'];
+ fu.line = f['(line)'];
+ fu.last = f['(last)'];
+ data.functions.push(fu);
+ }
+
+ if (unused.length > 0) {
+ data.unused = unused;
+ }
+
+ members = [];
+ for (n in member) {
+ if (typeof member[n] === 'number') {
+ data.member = member;
+ break;
+ }
+ }
+
+ return data;
+ };
+
+ itself.report = function (option) {
+ var data = itself.data();
+
+ var a = [], c, e, err, f, i, k, l, m = '', n, o = [], s;
+
+ function detail(h, array) {
+ var b, i, singularity;
+ if (array) {
+ o.push('<div><i>' + h + '</i> ');
+ array = array.sort();
+ for (i = 0; i < array.length; i += 1) {
+ if (array[i] !== singularity) {
+ singularity = array[i];
+ o.push((b ? ', ' : '') + singularity);
+ b = true;
+ }
+ }
+ o.push('</div>');
+ }
+ }
+
+
+ if (data.errors || data.implieds || data.unused) {
+ err = true;
+ o.push('<div id=errors><i>Error:</i>');
+ if (data.errors) {
+ for (i = 0; i < data.errors.length; i += 1) {
+ c = data.errors[i];
+ if (c) {
+ e = c.evidence || '';
+ o.push('<p>Problem' + (isFinite(c.line) ? ' at line ' +
+ c.line + ' character ' + c.character : '') +
+ ': ' + c.reason.entityify() +
+ '</p><p class=evidence>' +
+ (e && (e.length > 80 ? e.slice(0, 77) + '...' :
+ e).entityify()) + '</p>');
+ }
+ }
+ }
+
+ if (data.implieds) {
+ s = [];
+ for (i = 0; i < data.implieds.length; i += 1) {
+ s[i] = '<code>' + data.implieds[i].name + '</code> <i>' +
+ data.implieds[i].line + '</i>';
+ }
+ o.push('<p><i>Implied global:</i> ' + s.join(', ') + '</p>');
+ }
+
+ if (data.unused) {
+ s = [];
+ for (i = 0; i < data.unused.length; i += 1) {
+ s[i] = '<code><u>' + data.unused[i].name + '</u></code> <i>' +
+ data.unused[i].line + '</i> <code>' +
+ data.unused[i]['function'] + '</code>';
+ }
+ o.push('<p><i>Unused variable:</i> ' + s.join(', ') + '</p>');
+ }
+ if (data.json) {
+ o.push('<p>JSON: bad.</p>');
+ }
+ o.push('</div>');
+ }
+
+ if (!option) {
+
+ o.push('<br><div id=functions>');
+
+ if (data.urls) {
+ detail("URLs<br>", data.urls, '<br>');
+ }
+
+ if (xmode === 'style') {
+ o.push('<p>CSS.</p>');
+ } else if (data.json && !err) {
+ o.push('<p>JSON: good.</p>');
+ } else if (data.globals) {
+ o.push('<div><i>Global</i> ' +
+ data.globals.sort().join(', ') + '</div>');
+ } else {
+ o.push('<div><i>No new global variables introduced.</i></div>');
+ }
+
+ for (i = 0; i < data.functions.length; i += 1) {
+ f = data.functions[i];
+
+ o.push('<br><div class=function><i>' + f.line + '-' +
+ f.last + '</i> ' + (f.name || '') + '(' +
+ (f.param ? f.param.join(', ') : '') + ')</div>');
+ detail('<big><b>Unused</b></big>', f.unused);
+ detail('Closure', f.closure);
+ detail('Variable', f['var']);
+ detail('Exception', f.exception);
+ detail('Outer', f.outer);
+ detail('Global', f.global);
+ detail('Label', f.label);
+ }
+
+ if (data.member) {
+ a = to_array(data.member);
+ if (a.length) {
+ a = a.sort();
+ m = '<br><pre id=members>/*members ';
+ l = 10;
+ for (i = 0; i < a.length; i += 1) {
+ k = a[i];
+ n = k.name();
+ if (l + n.length > 72) {
+ o.push(m + '<br>');
+ m = ' ';
+ l = 1;
+ }
+ l += n.length + 2;
+ if (data.member[k] === 1) {
+ n = '<i>' + n + '</i>';
+ }
+ if (i < a.length - 1) {
+ n += ', ';
+ }
+ m += n;
+ }
+ o.push(m + '<br>*/</pre>');
+ }
+ o.push('</div>');
+ }
+ }
+ return o.join('');
+ };
+ itself.jslint = itself;
+
+ itself.edition = '2010-02-20';
+
+ if (typeof exports !== "undefined") {
+ exports.JSLINT = itself;
+ }
+
+ return itself;
+
+}());
--- /dev/null
+/***********************************************************************
+
+ A JavaScript tokenizer / parser / beautifier / compressor.
+
+ This version is suitable for Node.js. With minimal changes (the
+ exports stuff) it should work on any JS platform.
+
+ This file contains the tokenizer/parser. It is a port to JavaScript
+ of parse-js [1], a JavaScript parser library written in Common Lisp
+ by Marijn Haverbeke. Thank you Marijn!
+
+ [1] http://marijn.haverbeke.nl/parse-js/
+
+ Exported functions:
+
+ - tokenizer(code) -- returns a function. Call the returned
+ function to fetch the next token.
+
+ - parse(code) -- returns an AST of the given JavaScript code.
+
+ -------------------------------- (C) ---------------------------------
+
+ Author: Mihai Bazon
+ <mihai.bazon@gmail.com>
+ http://mihai.bazon.net/blog
+
+ Distributed under the BSD license:
+
+ Copyright 2010 (c) Mihai Bazon <mihai.bazon@gmail.com>
+ Based on parse-js (http://marijn.haverbeke.nl/parse-js/).
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the following
+ disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials
+ provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
+ EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+ ***********************************************************************/
+
+/* -----[ Tokenizer (constants) ]----- */
+
+var KEYWORDS = array_to_hash([
+ "break",
+ "case",
+ "catch",
+ "const",
+ "continue",
+ "default",
+ "delete",
+ "do",
+ "else",
+ "finally",
+ "for",
+ "function",
+ "if",
+ "in",
+ "instanceof",
+ "new",
+ "return",
+ "switch",
+ "throw",
+ "try",
+ "typeof",
+ "var",
+ "void",
+ "while",
+ "with"
+]);
+
+var RESERVED_WORDS = array_to_hash([
+ "abstract",
+ "boolean",
+ "byte",
+ "char",
+ "class",
+ "debugger",
+ "double",
+ "enum",
+ "export",
+ "extends",
+ "final",
+ "float",
+ "goto",
+ "implements",
+ "import",
+ "int",
+ "interface",
+ "long",
+ "native",
+ "package",
+ "private",
+ "protected",
+ "public",
+ "short",
+ "static",
+ "super",
+ "synchronized",
+ "throws",
+ "transient",
+ "volatile"
+]);
+
+var KEYWORDS_BEFORE_EXPRESSION = array_to_hash([
+ "return",
+ "new",
+ "delete",
+ "throw",
+ "else",
+ "case"
+]);
+
+var KEYWORDS_ATOM = array_to_hash([
+ "false",
+ "null",
+ "true",
+ "undefined"
+]);
+
+var OPERATOR_CHARS = array_to_hash(characters("+-*&%=<>!?|~^"));
+
+var RE_HEX_NUMBER = /^0x[0-9a-f]+$/i;
+var RE_OCT_NUMBER = /^0[0-7]+$/;
+var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;
+
+var OPERATORS = array_to_hash([
+ "in",
+ "instanceof",
+ "typeof",
+ "new",
+ "void",
+ "delete",
+ "++",
+ "--",
+ "+",
+ "-",
+ "!",
+ "~",
+ "&",
+ "|",
+ "^",
+ "*",
+ "/",
+ "%",
+ ">>",
+ "<<",
+ ">>>",
+ "<",
+ ">",
+ "<=",
+ ">=",
+ "==",
+ "===",
+ "!=",
+ "!==",
+ "?",
+ "=",
+ "+=",
+ "-=",
+ "/=",
+ "*=",
+ "%=",
+ ">>=",
+ "<<=",
+ ">>>=",
+ "~=",
+ "%=",
+ "|=",
+ "^=",
+ "&=",
+ "&&",
+ "||"
+]);
+
+var WHITESPACE_CHARS = array_to_hash(characters(" \n\r\t"));
+
+var PUNC_BEFORE_EXPRESSION = array_to_hash(characters("[{}(,.;:"));
+
+var PUNC_CHARS = array_to_hash(characters("[]{}(),;:"));
+
+var REGEXP_MODIFIERS = array_to_hash(characters("gmsiy"));
+
+/* -----[ Tokenizer ]----- */
+
+function is_alphanumeric_char(ch) {
+ ch = ch.charCodeAt(0);
+ return (ch >= 48 && ch <= 57) ||
+ (ch >= 65 && ch <= 90) ||
+ (ch >= 97 && ch <= 122);
+};
+
+function is_identifier_char(ch) {
+ return is_alphanumeric_char(ch) || ch == "$" || ch == "_";
+};
+
+function is_digit(ch) {
+ ch = ch.charCodeAt(0);
+ return ch >= 48 && ch <= 57;
+};
+
+function parse_js_number(num) {
+ if (RE_HEX_NUMBER.test(num)) {
+ return parseInt(num.substr(2), 16);
+ } else if (RE_OCT_NUMBER.test(num)) {
+ return parseInt(num.substr(1), 8);
+ } else if (RE_DEC_NUMBER.test(num)) {
+ return parseFloat(num);
+ }
+};
+
+function JS_Parse_Error(message, line, col, pos) {
+ this.message = message;
+ this.line = line;
+ this.col = col;
+ this.pos = pos;
+ try {
+ ({})();
+ } catch(ex) {
+ this.stack = ex.stack;
+ };
+};
+
+JS_Parse_Error.prototype.toString = function() {
+ return this.message + " (line: " + this.line + ", col: " + this.col + ", pos: " + this.pos + ")" + "\n\n" + this.stack;
+};
+
+function js_error(message, line, col, pos) {
+ throw new JS_Parse_Error(message, line, col, pos);
+};
+
+function is_token(token, type, val) {
+ return token.type == type && (val == null || token.value == val);
+};
+
+var EX_EOF = {};
+
+function tokenizer($TEXT, skip_comments) {
+
+ var S = {
+ text : $TEXT.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, ''),
+ pos : 0,
+ tokpos : 0,
+ line : 0,
+ tokline : 0,
+ col : 0,
+ tokcol : 0,
+ newline_before : false,
+ regex_allowed : false
+ };
+
+ function peek() { return S.text.charAt(S.pos); };
+
+ function next(signal_eof) {
+ var ch = S.text.charAt(S.pos++);
+ if (signal_eof && !ch)
+ throw EX_EOF;
+ if (ch == "\n") {
+ S.newline_before = true;
+ ++S.line;
+ S.col = 0;
+ } else {
+ ++S.col;
+ }
+ return ch;
+ };
+
+ function eof() {
+ return !S.peek();
+ };
+
+ function find(what, signal_eof) {
+ var pos = S.text.indexOf(what, S.pos);
+ if (signal_eof && pos == -1) throw EX_EOF;
+ return pos;
+ };
+
+ function start_token() {
+ S.tokline = S.line;
+ S.tokcol = S.col;
+ S.tokpos = S.pos;
+ };
+
+ function token(type, value) {
+ S.regex_allowed = ((type == "operator" && !HOP(UNARY_POSTFIX, value)) ||
+ (type == "keyword" && HOP(KEYWORDS_BEFORE_EXPRESSION, value)) ||
+ (type == "punc" && HOP(PUNC_BEFORE_EXPRESSION, value)));
+ var ret = {
+ type : type,
+ value : value,
+ line : S.tokline,
+ col : S.tokcol,
+ pos : S.tokpos,
+ nlb : S.newline_before
+ };
+ S.newline_before = false;
+ return ret;
+ };
+
+ function skip_whitespace() {
+ while (HOP(WHITESPACE_CHARS, peek()))
+ next();
+ };
+
+ function read_while(pred) {
+ var ret = "", ch = peek(), i = 0;
+ while (ch && pred(ch, i++)) {
+ ret += next();
+ ch = peek();
+ }
+ return ret;
+ };
+
+ function parse_error(err) {
+ js_error(err, S.tokline, S.tokcol, S.tokpos);
+ };
+
+ function read_num(prefix) {
+ var has_e = false, after_e = false, has_x = false, has_dot = prefix == ".";
+ var num = read_while(function(ch, i){
+ if (ch == "x" || ch == "X") {
+ if (has_x) return false;
+ return has_x = true;
+ }
+ if (!has_x && (ch == "E" || ch == "e")) {
+ if (has_e) return false;
+ return has_e = after_e = true;
+ }
+ if (ch == "-") {
+ if (after_e || (i == 0 && !prefix)) return true;
+ return false;
+ }
+ if (ch == "+") return after_e;
+ after_e = false;
+ if (ch == ".") {
+ if (!has_dot)
+ return has_dot = true;
+ return false;
+ }
+ return is_alphanumeric_char(ch);
+ });
+ if (prefix)
+ num = prefix + num;
+ var valid = parse_js_number(num);
+ if (!isNaN(valid)) {
+ return token("num", valid);
+ } else {
+ parse_error("Invalid syntax: " + num);
+ }
+ };
+
+ function read_escaped_char() {
+ var ch = next(true);
+ switch (ch) {
+ case "n" : return "\n";
+ case "r" : return "\r";
+ case "t" : return "\t";
+ case "b" : return "\b";
+ case "v" : return "\v";
+ case "f" : return "\f";
+ case "0" : return "\0";
+ case "x" : return String.fromCharCode(hex_bytes(2));
+ case "u" : return String.fromCharCode(hex_bytes(4));
+ default : return ch;
+ }
+ };
+
+ function hex_bytes(n) {
+ var num = 0;
+ for (; n > 0; --n) {
+ var digit = parseInt(next(true), 16);
+ if (isNaN(digit))
+ parse_error("Invalid hex-character pattern in string");
+ num = (num << 4) | digit;
+ }
+ return num;
+ };
+
+ function read_string() {
+ return with_eof_error("Unterminated string constant", function(){
+ var quote = next(), ret = "";
+ for (;;) {
+ var ch = next(true);
+ if (ch == "\\") ch = read_escaped_char();
+ else if (ch == quote) break;
+ ret += ch;
+ }
+ return token("string", ret);
+ });
+ };
+
+ function read_line_comment() {
+ next();
+ var i = find("\n"), ret;
+ if (i == -1) {
+ ret = S.text.substr(S.pos);
+ S.pos = S.text.length;
+ } else {
+ ret = S.text.substring(S.pos, i);
+ S.pos = i;
+ }
+ return token("comment1", ret);
+ };
+
+ function read_multiline_comment() {
+ next();
+ return with_eof_error("Unterminated multiline comment", function(){
+ var i = find("*/", true),
+ text = S.text.substring(S.pos, i),
+ tok = token("comment2", text);
+ S.pos = i + 2;
+ S.line += text.split("\n").length - 1;
+ S.newline_before = text.indexOf("\n") >= 0;
+ return tok;
+ });
+ };
+
+ function read_regexp() {
+ return with_eof_error("Unterminated regular expression", function(){
+ var prev_backslash = false, regexp = "", ch, in_class = false;
+ while ((ch = next(true))) if (prev_backslash) {
+ regexp += "\\" + ch;
+ prev_backslash = false;
+ } else if (ch == "[") {
+ in_class = true;
+ regexp += ch;
+ } else if (ch == "]" && in_class) {
+ in_class = false;
+ regexp += ch;
+ } else if (ch == "/" && !in_class) {
+ break;
+ } else if (ch == "\\") {
+ prev_backslash = true;
+ } else {
+ regexp += ch;
+ }
+ var mods = read_while(function(ch){
+ return HOP(REGEXP_MODIFIERS, ch);
+ });
+ return token("regexp", [ regexp, mods ]);
+ });
+ };
+
+ function read_operator(prefix) {
+ function grow(op) {
+ var bigger = op + peek();
+ if (HOP(OPERATORS, bigger)) {
+ next();
+ return grow(bigger);
+ } else {
+ return op;
+ }
+ };
+ return token("operator", grow(prefix || next()));
+ };
+
+ var handle_slash = skip_comments ? function() {
+ next();
+ var regex_allowed = S.regex_allowed;
+ switch (peek()) {
+ case "/": read_line_comment(); S.regex_allowed = regex_allowed; return next_token();
+ case "*": read_multiline_comment(); S.regex_allowed = regex_allowed; return next_token();
+ }
+ return S.regex_allowed ? read_regexp() : read_operator("/");
+ } : function() {
+ next();
+ switch (peek()) {
+ case "/": return read_line_comment();
+ case "*": return read_multiline_comment();
+ }
+ return S.regex_allowed ? read_regexp() : read_operator("/");
+ };
+
+ function handle_dot() {
+ next();
+ return is_digit(peek())
+ ? read_num(".")
+ : token("punc", ".");
+ };
+
+ function read_word() {
+ var word = read_while(is_identifier_char);
+ return !HOP(KEYWORDS, word)
+ ? token("name", word)
+ : HOP(OPERATORS, word)
+ ? token("operator", word)
+ : HOP(KEYWORDS_ATOM, word)
+ ? token("atom", word)
+ : token("keyword", word);
+ };
+
+ function with_eof_error(eof_error, cont) {
+ try {
+ return cont();
+ } catch(ex) {
+ if (ex === EX_EOF) parse_error(eof_error);
+ else throw ex;
+ }
+ };
+
+ function next_token(force_regexp) {
+ if (force_regexp)
+ return read_regexp();
+ skip_whitespace();
+ start_token();
+ var ch = peek();
+ if (!ch) return token("eof");
+ if (is_digit(ch)) return read_num();
+ if (ch == '"' || ch == "'") return read_string();
+ if (HOP(PUNC_CHARS, ch)) return token("punc", next());
+ if (ch == ".") return handle_dot();
+ if (ch == "/") return handle_slash();
+ if (HOP(OPERATOR_CHARS, ch)) return read_operator();
+ if (is_identifier_char(ch)) return read_word();
+ parse_error("Unexpected character '" + ch + "'");
+ };
+
+ next_token.context = function(nc) {
+ if (nc) S = nc;
+ return S;
+ };
+
+ return next_token;
+
+};
+
+/* -----[ Parser (constants) ]----- */
+
+var UNARY_PREFIX = array_to_hash([
+ "typeof",
+ "void",
+ "delete",
+ "--",
+ "++",
+ "!",
+ "~",
+ "-",
+ "+"
+]);
+
+var UNARY_POSTFIX = array_to_hash([ "--", "++" ]);
+
+var ASSIGNMENT = (function(a, ret, i){
+ while (i < a.length) {
+ ret[a[i]] = a[i].substr(0, a[i].length - 1);
+ i++;
+ }
+ return ret;
+})(
+ ["+=", "-=", "/=", "*=", "%=", ">>=", "<<=", ">>>=", "~=", "%=", "|=", "^=", "&="],
+ { "=": true },
+ 0
+);
+
+var PRECEDENCE = (function(a, ret){
+ for (var i = 0, n = 1; i < a.length; ++i, ++n) {
+ var b = a[i];
+ for (var j = 0; j < b.length; ++j) {
+ ret[b[j]] = n;
+ }
+ }
+ return ret;
+})(
+ [
+ ["||"],
+ ["&&"],
+ ["|"],
+ ["^"],
+ ["&"],
+ ["==", "===", "!=", "!=="],
+ ["<", ">", "<=", ">=", "in", "instanceof"],
+ [">>", "<<", ">>>"],
+ ["+", "-"],
+ ["*", "/", "%"]
+ ],
+ {}
+);
+
+var STATEMENTS_WITH_LABELS = array_to_hash([ "for", "do", "while", "switch" ]);
+
+var ATOMIC_START_TOKEN = array_to_hash([ "atom", "num", "string", "regexp", "name" ]);
+
+/* -----[ Parser ]----- */
+
+function NodeWithToken(str, start, end) {
+ this.name = str;
+ this.start = start;
+ this.end = end;
+};
+
+NodeWithToken.prototype.toString = function() { return this.name; };
+
+function parse($TEXT, strict_mode, embed_tokens) {
+
+ var S = {
+ input: tokenizer($TEXT, true),
+ token: null,
+ prev: null,
+ peeked: null,
+ in_function: 0,
+ in_loop: 0,
+ labels: []
+ };
+
+ S.token = next();
+
+ function is(type, value) {
+ return is_token(S.token, type, value);
+ };
+
+ function peek() { return S.peeked || (S.peeked = S.input()); };
+
+ function next() {
+ S.prev = S.token;
+ if (S.peeked) {
+ S.token = S.peeked;
+ S.peeked = null;
+ } else {
+ S.token = S.input();
+ }
+ return S.token;
+ };
+
+ function prev() {
+ return S.prev;
+ };
+
+ function croak(msg, line, col, pos) {
+ var ctx = S.input.context();
+ js_error(msg,
+ line != null ? line : ctx.tokline,
+ col != null ? col : ctx.tokcol,
+ pos != null ? pos : ctx.tokpos);
+ };
+
+ function token_error(token, msg) {
+ croak(msg, token.line, token.col);
+ };
+
+ function unexpected(token) {
+ if (token == null)
+ token = S.token;
+ token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")");
+ };
+
+ function expect_token(type, val) {
+ if (is(type, val)) {
+ return next();
+ }
+ token_error(S.token, "Unexpected token " + S.token.type + ", expected " + type);
+ };
+
+ function expect(punc) { return expect_token("punc", punc); };
+
+ function can_insert_semicolon() {
+ return !strict_mode && (
+ S.token.nlb || is("eof") || is("punc", "}")
+ );
+ };
+
+ function semicolon() {
+ if (is("punc", ";")) next();
+ else if (!can_insert_semicolon()) unexpected();
+ };
+
+ function as() {
+ return slice(arguments);
+ };
+
+ function parenthesised() {
+ expect("(");
+ var ex = expression();
+ expect(")");
+ return ex;
+ };
+
+ function add_tokens(str, start, end) {
+ return new NodeWithToken(str, start, end);
+ };
+
+ var statement = embed_tokens ? function() {
+ var start = S.token;
+ var stmt = $statement();
+ stmt[0] = add_tokens(stmt[0], start, prev());
+ return stmt;
+ } : $statement;
+
+ function $statement() {
+ if (is("operator", "/")) {
+ S.peeked = null;
+ S.token = S.input(true); // force regexp
+ }
+ switch (S.token.type) {
+ case "num":
+ case "string":
+ case "regexp":
+ case "operator":
+ case "atom":
+ return simple_statement();
+
+ case "name":
+ return is_token(peek(), "punc", ":")
+ ? labeled_statement(prog1(S.token.value, next, next))
+ : simple_statement();
+
+ case "punc":
+ switch (S.token.value) {
+ case "{":
+ return as("block", block_());
+ case "[":
+ case "(":
+ return simple_statement();
+ case ";":
+ next();
+ return as("block");
+ default:
+ unexpected();
+ }
+
+ case "keyword":
+ switch (prog1(S.token.value, next)) {
+ case "break":
+ return break_cont("break");
+
+ case "continue":
+ return break_cont("continue");
+
+ case "debugger":
+ semicolon();
+ return as("debugger");
+
+ case "do":
+ return (function(body){
+ expect_token("keyword", "while");
+ return as("do", prog1(parenthesised, semicolon), body);
+ })(in_loop(statement));
+
+ case "for":
+ return for_();
+
+ case "function":
+ return function_(true);
+
+ case "if":
+ return if_();
+
+ case "return":
+ if (S.in_function == 0)
+ croak("'return' outside of function");
+ return as("return",
+ is("punc", ";")
+ ? (next(), null)
+ : can_insert_semicolon()
+ ? null
+ : prog1(expression, semicolon));
+
+ case "switch":
+ return as("switch", parenthesised(), switch_block_());
+
+ case "throw":
+ return as("throw", prog1(expression, semicolon));
+
+ case "try":
+ return try_();
+
+ case "var":
+ return prog1(var_, semicolon);
+
+ case "const":
+ return prog1(const_, semicolon);
+
+ case "while":
+ return as("while", parenthesised(), in_loop(statement));
+
+ case "with":
+ return as("with", parenthesised(), statement());
+
+ default:
+ unexpected();
+ }
+ }
+ };
+
+ function labeled_statement(label) {
+ S.labels.push(label);
+ var start = S.token, stat = statement();
+ if (strict_mode && !HOP(STATEMENTS_WITH_LABELS, stat[0]))
+ unexpected(start);
+ S.labels.pop();
+ return as("label", label, stat);
+ };
+
+ function simple_statement() {
+ return as("stat", prog1(expression, semicolon));
+ };
+
+ function break_cont(type) {
+ var name = is("name") ? S.token.value : null;
+ if (name != null) {
+ next();
+ if (!member(name, S.labels))
+ croak("Label " + name + " without matching loop or statement");
+ }
+ else if (S.in_loop == 0)
+ croak(type + " not inside a loop or switch");
+ semicolon();
+ return as(type, name);
+ };
+
+ function for_() {
+ expect("(");
+ var has_var = is("keyword", "var");
+ if (has_var)
+ next();
+ if (is("name") && is_token(peek(), "operator", "in")) {
+ // for (i in foo)
+ var name = S.token.value;
+ next(); next();
+ var obj = expression();
+ expect(")");
+ return as("for-in", has_var, name, obj, in_loop(statement));
+ } else {
+ // classic for
+ var init = is("punc", ";") ? null : has_var ? var_() : expression();
+ expect(";");
+ var test = is("punc", ";") ? null : expression();
+ expect(";");
+ var step = is("punc", ")") ? null : expression();
+ expect(")");
+ return as("for", init, test, step, in_loop(statement));
+ }
+ };
+
+ function function_(in_statement) {
+ var name = is("name") ? prog1(S.token.value, next) : null;
+ if (in_statement && !name)
+ unexpected();
+ expect("(");
+ return as(in_statement ? "defun" : "function",
+ name,
+ // arguments
+ (function(first, a){
+ while (!is("punc", ")")) {
+ if (first) first = false; else expect(",");
+ if (!is("name")) unexpected();
+ a.push(S.token.value);
+ next();
+ }
+ next();
+ return a;
+ })(true, []),
+ // body
+ (function(){
+ ++S.in_function;
+ var loop = S.in_loop;
+ S.in_loop = 0;
+ var a = block_();
+ --S.in_function;
+ S.in_loop = loop;
+ return a;
+ })());
+ };
+
+ function if_() {
+ var cond = parenthesised(), body = statement(), belse;
+ if (is("keyword", "else")) {
+ next();
+ belse = statement();
+ }
+ return as("if", cond, body, belse);
+ };
+
+ function block_() {
+ expect("{");
+ var a = [];
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ a.push(statement());
+ }
+ next();
+ return a;
+ };
+
+ var switch_block_ = curry(in_loop, function(){
+ expect("{");
+ var a = [], cur = null;
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ if (is("keyword", "case")) {
+ next();
+ cur = [];
+ a.push([ expression(), cur ]);
+ expect(":");
+ }
+ else if (is("keyword", "default")) {
+ next();
+ expect(":");
+ cur = [];
+ a.push([ null, cur ]);
+ }
+ else {
+ if (!cur) unexpected();
+ cur.push(statement());
+ }
+ }
+ next();
+ return a;
+ });
+
+ function try_() {
+ var body = block_(), bcatch, bfinally;
+ if (is("keyword", "catch")) {
+ next();
+ expect("(");
+ if (!is("name"))
+ croak("Name expected");
+ var name = S.token.value;
+ next();
+ expect(")");
+ bcatch = [ name, block_() ];
+ }
+ if (is("keyword", "finally")) {
+ next();
+ bfinally = block_();
+ }
+ if (!bcatch && !bfinally)
+ croak("Missing catch/finally blocks");
+ return as("try", body, bcatch, bfinally);
+ };
+
+ function vardefs() {
+ var a = [];
+ for (;;) {
+ if (!is("name"))
+ unexpected();
+ var name = S.token.value;
+ next();
+ if (is("operator", "=")) {
+ next();
+ a.push([ name, expression(false) ]);
+ } else {
+ a.push([ name ]);
+ }
+ if (!is("punc", ","))
+ break;
+ next();
+ }
+ return a;
+ };
+
+ function var_() {
+ return as("var", vardefs());
+ };
+
+ function const_() {
+ return as("const", vardefs());
+ };
+
+ function new_() {
+ var newexp = expr_atom(false), args;
+ if (is("punc", "(")) {
+ next();
+ args = expr_list(")");
+ } else {
+ args = [];
+ }
+ return subscripts(as("new", newexp, args), true);
+ };
+
+ function expr_atom(allow_calls) {
+ if (is("operator", "new")) {
+ next();
+ return new_();
+ }
+ if (is("operator") && HOP(UNARY_PREFIX, S.token.value)) {
+ return make_unary("unary-prefix",
+ prog1(S.token.value, next),
+ expr_atom(allow_calls));
+ }
+ if (is("punc")) {
+ switch (S.token.value) {
+ case "(":
+ next();
+ return subscripts(prog1(expression, curry(expect, ")")), allow_calls);
+ case "[":
+ next();
+ return subscripts(array_(), allow_calls);
+ case "{":
+ next();
+ return subscripts(object_(), allow_calls);
+ }
+ unexpected();
+ }
+ if (is("keyword", "function")) {
+ next();
+ return subscripts(function_(false), allow_calls);
+ }
+ if (HOP(ATOMIC_START_TOKEN, S.token.type)) {
+ var atom = S.token.type == "regexp"
+ ? as("regexp", S.token.value[0], S.token.value[1])
+ : as(S.token.type, S.token.value);
+ return subscripts(prog1(atom, next), allow_calls);
+ }
+ unexpected();
+ };
+
+ function expr_list(closing, allow_trailing_comma) {
+ var first = true, a = [];
+ while (!is("punc", closing)) {
+ if (first) first = false; else expect(",");
+ if (allow_trailing_comma && is("punc", closing))
+ break;
+ a.push(expression(false));
+ }
+ next();
+ return a;
+ };
+
+ function array_() {
+ return as("array", expr_list("]", !strict_mode));
+ };
+
+ function object_() {
+ var first = true, a = [];
+ while (!is("punc", "}")) {
+ if (first) first = false; else expect(",");
+ if (!strict_mode && is("punc", "}"))
+ // allow trailing comma
+ break;
+ var type = S.token.type;
+ var name = as_property_name();
+ if (type == "name" && (name == "get" || name == "set") && !is("punc", ":")) {
+ a.push([ as_name(), function_(false), name ]);
+ } else {
+ expect(":");
+ a.push([ name, expression(false) ]);
+ }
+ }
+ next();
+ return as("object", a);
+ };
+
+ function as_property_name() {
+ switch (S.token.type) {
+ case "num":
+ case "string":
+ return prog1(S.token.value, next);
+ }
+ return as_name();
+ };
+
+ function as_name() {
+ switch (S.token.type) {
+ case "name":
+ case "operator":
+ case "keyword":
+ case "atom":
+ return prog1(S.token.value, next);
+ default:
+ unexpected();
+ }
+ };
+
+ function subscripts(expr, allow_calls) {
+ if (is("punc", ".")) {
+ next();
+ return subscripts(as("dot", expr, as_name()), allow_calls);
+ }
+ if (is("punc", "[")) {
+ next();
+ return subscripts(as("sub", expr, prog1(expression, curry(expect, "]"))), allow_calls);
+ }
+ if (allow_calls && is("punc", "(")) {
+ next();
+ return subscripts(as("call", expr, expr_list(")")), true);
+ }
+ if (allow_calls && is("operator") && HOP(UNARY_POSTFIX, S.token.value)) {
+ return prog1(curry(make_unary, "unary-postfix", S.token.value, expr),
+ next);
+ }
+ return expr;
+ };
+
+ function make_unary(tag, op, expr) {
+ if ((op == "++" || op == "--") && !is_assignable(expr))
+ croak("Invalid use of " + op + " operator");
+ return as(tag, op, expr);
+ };
+
+ function expr_op(left, min_prec) {
+ var op = is("operator") ? S.token.value : null;
+ var prec = op != null ? PRECEDENCE[op] : null;
+ if (prec != null && prec > min_prec) {
+ next();
+ var right = expr_op(expr_atom(true), prec);
+ return expr_op(as("binary", op, left, right), min_prec);
+ }
+ return left;
+ };
+
+ function expr_ops() {
+ return expr_op(expr_atom(true), 0);
+ };
+
+ function maybe_conditional() {
+ var expr = expr_ops();
+ if (is("operator", "?")) {
+ next();
+ var yes = expression(false);
+ expect(":");
+ return as("conditional", expr, yes, expression(false));
+ }
+ return expr;
+ };
+
+ function is_assignable(expr) {
+ switch (expr[0]) {
+ case "dot":
+ case "sub":
+ return true;
+ case "name":
+ return expr[1] != "this";
+ }
+ };
+
+ function maybe_assign() {
+ var left = maybe_conditional(), val = S.token.value;
+ if (is("operator") && HOP(ASSIGNMENT, val)) {
+ if (is_assignable(left)) {
+ next();
+ return as("assign", ASSIGNMENT[val], left, maybe_assign());
+ }
+ croak("Invalid assignment");
+ }
+ return left;
+ };
+
+ function expression(commas) {
+ if (arguments.length == 0)
+ commas = true;
+ var expr = maybe_assign();
+ if (commas && is("punc", ",")) {
+ next();
+ return as("seq", expr, expression());
+ }
+ return expr;
+ };
+
+ function in_loop(cont) {
+ try {
+ ++S.in_loop;
+ return cont();
+ } finally {
+ --S.in_loop;
+ }
+ };
+
+ return as("toplevel", (function(a){
+ while (!is("eof"))
+ a.push(statement());
+ return a;
+ })([]));
+
+};
+
+/* -----[ Utilities ]----- */
+
+function curry(f) {
+ var args = slice(arguments, 1);
+ return function() { return f.apply(this, args.concat(slice(arguments))); };
+};
+
+function prog1(ret) {
+ if (ret instanceof Function)
+ ret = ret();
+ for (var i = 1, n = arguments.length; --n > 0; ++i)
+ arguments[i]();
+ return ret;
+};
+
+function array_to_hash(a) {
+ var ret = {};
+ for (var i = 0; i < a.length; ++i)
+ ret[a[i]] = true;
+ return ret;
+};
+
+function slice(a, start) {
+ return Array.prototype.slice.call(a, start == null ? 0 : start);
+};
+
+function characters(str) {
+ return str.split("");
+};
+
+function member(name, array) {
+ for (var i = array.length; --i >= 0;)
+ if (array[i] === name)
+ return true;
+ return false;
+};
+
+function HOP(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+};
+
+/* -----[ Exports ]----- */
+
+exports.tokenizer = tokenizer;
+exports.parse = parse;
+exports.slice = slice;
+exports.curry = curry;
+exports.member = member;
+exports.array_to_hash = array_to_hash;
+exports.PRECEDENCE = PRECEDENCE;
+exports.KEYWORDS_ATOM = KEYWORDS_ATOM;
+exports.RESERVED_WORDS = RESERVED_WORDS;
+exports.KEYWORDS = KEYWORDS;
+exports.ATOMIC_START_TOKEN = ATOMIC_START_TOKEN;
+exports.OPERATORS = OPERATORS;
+exports.is_alphanumeric_char = is_alphanumeric_char;
--- /dev/null
+/***********************************************************************
+
+ A JavaScript tokenizer / parser / beautifier / compressor.
+
+ This version is suitable for Node.js. With minimal changes (the
+ exports stuff) it should work on any JS platform.
+
+ This file implements some AST processors. They work on data built
+ by parse-js.
+
+ Exported functions:
+
+ - ast_mangle(ast, include_toplevel) -- mangles the
+ variable/function names in the AST. Returns an AST. Pass true
+ as second argument to mangle toplevel names too.
+
+ - ast_squeeze(ast) -- employs various optimizations to make the
+ final generated code even smaller. Returns an AST.
+
+ - gen_code(ast, beautify) -- generates JS code from the AST. Pass
+ true (or an object, see the code for some options) as second
+ argument to get "pretty" (indented) code.
+
+ -------------------------------- (C) ---------------------------------
+
+ Author: Mihai Bazon
+ <mihai.bazon@gmail.com>
+ http://mihai.bazon.net/blog
+
+ Distributed under the BSD license:
+
+ Copyright 2010 (c) Mihai Bazon <mihai.bazon@gmail.com>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the following
+ disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials
+ provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
+ EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+
+ ***********************************************************************/
+
+var jsp = require("./parse-js"),
+ slice = jsp.slice,
+ member = jsp.member,
+ PRECEDENCE = jsp.PRECEDENCE,
+ OPERATORS = jsp.OPERATORS;
+
+/* -----[ helper for AST traversal ]----- */
+
+function ast_walker(ast) {
+ function _vardefs(defs) {
+ return MAP(defs, function(def){
+ var a = [ def[0] ];
+ if (def.length > 1)
+ a[1] = walk(def[1]);
+ return a;
+ });
+ };
+ var walkers = {
+ "string": function(str) {
+ return [ "string", str ];
+ },
+ "num": function(num) {
+ return [ "num", num ];
+ },
+ "name": function(name) {
+ return [ "name", name ];
+ },
+ "toplevel": function(statements) {
+ return [ "toplevel", MAP(statements, walk) ];
+ },
+ "block": function(statements) {
+ var out = [ "block" ];
+ if (statements != null)
+ out.push(MAP(statements, walk));
+ return out;
+ },
+ "var": function(defs) {
+ return [ "var", _vardefs(defs) ];
+ },
+ "const": function(defs) {
+ return [ "const", _vardefs(defs) ];
+ },
+ "try": function(t, c, f) {
+ return [
+ "try",
+ MAP(t, walk),
+ c != null ? [ c[0], MAP(c[1], walk) ] : null,
+ f != null ? MAP(f, walk) : null
+ ];
+ },
+ "throw": function(expr) {
+ return [ "throw", walk(expr) ];
+ },
+ "new": function(ctor, args) {
+ return [ "new", walk(ctor), MAP(args, walk) ];
+ },
+ "switch": function(expr, body) {
+ return [ "switch", walk(expr), MAP(body, function(branch){
+ return [ branch[0] ? walk(branch[0]) : null,
+ MAP(branch[1], walk) ];
+ }) ];
+ },
+ "break": function(label) {
+ return [ "break", label ];
+ },
+ "continue": function(label) {
+ return [ "continue", label ];
+ },
+ "conditional": function(cond, t, e) {
+ return [ "conditional", walk(cond), walk(t), walk(e) ];
+ },
+ "assign": function(op, lvalue, rvalue) {
+ return [ "assign", op, walk(lvalue), walk(rvalue) ];
+ },
+ "dot": function(expr) {
+ return [ "dot", walk(expr) ].concat(slice(arguments, 1));
+ },
+ "call": function(expr, args) {
+ return [ "call", walk(expr), MAP(args, walk) ];
+ },
+ "function": function(name, args, body) {
+ return [ "function", name, args.slice(), MAP(body, walk) ];
+ },
+ "defun": function(name, args, body) {
+ return [ "defun", name, args.slice(), MAP(body, walk) ];
+ },
+ "if": function(conditional, t, e) {
+ return [ "if", walk(conditional), walk(t), walk(e) ];
+ },
+ "for": function(init, cond, step, block) {
+ return [ "for", walk(init), walk(cond), walk(step), walk(block) ];
+ },
+ "for-in": function(has_var, key, hash, block) {
+ return [ "for-in", has_var, key, walk(hash), walk(block) ];
+ },
+ "while": function(cond, block) {
+ return [ "while", walk(cond), walk(block) ];
+ },
+ "do": function(cond, block) {
+ return [ "do", walk(cond), walk(block) ];
+ },
+ "return": function(expr) {
+ return [ "return", walk(expr) ];
+ },
+ "binary": function(op, left, right) {
+ return [ "binary", op, walk(left), walk(right) ];
+ },
+ "unary-prefix": function(op, expr) {
+ return [ "unary-prefix", op, walk(expr) ];
+ },
+ "unary-postfix": function(op, expr) {
+ return [ "unary-postfix", op, walk(expr) ];
+ },
+ "sub": function(expr, subscript) {
+ return [ "sub", walk(expr), walk(subscript) ];
+ },
+ "object": function(props) {
+ return [ "object", MAP(props, function(p){
+ return p.length == 2
+ ? [ p[0], walk(p[1]) ]
+ : [ p[0], walk(p[1]), p[2] ]; // get/set-ter
+ }) ];
+ },
+ "regexp": function(rx, mods) {
+ return [ "regexp", rx, mods ];
+ },
+ "array": function(elements) {
+ return [ "array", MAP(elements, walk) ];
+ },
+ "stat": function(stat) {
+ return [ "stat", walk(stat) ];
+ },
+ "seq": function() {
+ return [ "seq" ].concat(MAP(slice(arguments), walk));
+ },
+ "label": function(name, block) {
+ return [ "label", name, walk(block) ];
+ },
+ "with": function(expr, block) {
+ return [ "with", walk(expr), walk(block) ];
+ },
+ "atom": function(name) {
+ return [ "atom", name ];
+ }
+ };
+
+ var user = {};
+ var stack = [];
+ function walk(ast) {
+ if (ast == null)
+ return null;
+ try {
+ stack.push(ast);
+ var type = ast[0];
+ var gen = user[type];
+ if (gen) {
+ var ret = gen.apply(ast, ast.slice(1));
+ if (ret != null)
+ return ret;
+ }
+ gen = walkers[type];
+ return gen.apply(ast, ast.slice(1));
+ } finally {
+ stack.pop();
+ }
+ };
+
+ function with_walkers(walkers, cont){
+ var save = {}, i;
+ for (i in walkers) if (HOP(walkers, i)) {
+ save[i] = user[i];
+ user[i] = walkers[i];
+ }
+ var ret = cont();
+ for (i in save) if (HOP(save, i)) {
+ if (!save[i]) delete user[i];
+ else user[i] = save[i];
+ }
+ return ret;
+ };
+
+ return {
+ walk: walk,
+ with_walkers: with_walkers,
+ parent: function() {
+ return stack[stack.length - 2]; // last one is current node
+ },
+ stack: function() {
+ return stack;
+ }
+ };
+};
+
+/* -----[ Scope and mangling ]----- */
+
+function Scope(parent) {
+ this.names = {}; // names defined in this scope
+ this.mangled = {}; // mangled names (orig.name => mangled)
+ this.rev_mangled = {}; // reverse lookup (mangled => orig.name)
+ this.cname = -1; // current mangled name
+ this.refs = {}; // names referenced from this scope
+ this.uses_with = false; // will become TRUE if eval() is detected in this or any subscopes
+ this.uses_eval = false; // will become TRUE if with() is detected in this or any subscopes
+ this.parent = parent; // parent scope
+ this.children = []; // sub-scopes
+ if (parent) {
+ this.level = parent.level + 1;
+ parent.children.push(this);
+ } else {
+ this.level = 0;
+ }
+};
+
+var base54 = (function(){
+ var DIGITS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_";
+ return function(num) {
+ var ret = "";
+ do {
+ ret = DIGITS.charAt(num % 54) + ret;
+ num = Math.floor(num / 54);
+ } while (num > 0);
+ return ret;
+ };
+})();
+
+Scope.prototype = {
+ has: function(name) {
+ for (var s = this; s; s = s.parent)
+ if (HOP(s.names, name))
+ return s;
+ },
+ has_mangled: function(mname) {
+ for (var s = this; s; s = s.parent)
+ if (HOP(s.rev_mangled, mname))
+ return s;
+ },
+ toJSON: function() {
+ return {
+ names: this.names,
+ uses_eval: this.uses_eval,
+ uses_with: this.uses_with
+ };
+ },
+
+ next_mangled: function() {
+ // we must be careful that the new mangled name:
+ //
+ // 1. doesn't shadow a mangled name from a parent
+ // scope, unless we don't reference the original
+ // name from this scope OR from any sub-scopes!
+ // This will get slow.
+ //
+ // 2. doesn't shadow an original name from a parent
+ // scope, in the event that the name is not mangled
+ // in the parent scope and we reference that name
+ // here OR IN ANY SUBSCOPES!
+ //
+ // 3. doesn't shadow a name that is referenced but not
+ // defined (possibly global defined elsewhere).
+ for (;;) {
+ var m = base54(++this.cname), prior;
+
+ // case 1.
+ prior = this.has_mangled(m);
+ if (prior && this.refs[prior.rev_mangled[m]] === prior)
+ continue;
+
+ // case 2.
+ prior = this.has(m);
+ if (prior && prior !== this && this.refs[m] === prior && !prior.has_mangled(m))
+ continue;
+
+ // case 3.
+ if (HOP(this.refs, m) && this.refs[m] == null)
+ continue;
+
+ // I got "do" once. :-/
+ if (!is_identifier(m))
+ continue;
+
+ return m;
+ }
+ },
+ get_mangled: function(name, newMangle) {
+ if (this.uses_eval || this.uses_with) return name; // no mangle if eval or with is in use
+ var s = this.has(name);
+ if (!s) return name; // not in visible scope, no mangle
+ if (HOP(s.mangled, name)) return s.mangled[name]; // already mangled in this scope
+ if (!newMangle) return name; // not found and no mangling requested
+
+ var m = s.next_mangled();
+ s.rev_mangled[m] = name;
+ return s.mangled[name] = m;
+ },
+ define: function(name) {
+ if (name != null)
+ return this.names[name] = name;
+ }
+};
+
+function ast_add_scope(ast) {
+
+ var current_scope = null;
+ var w = ast_walker(), walk = w.walk;
+ var having_eval = [];
+
+ function with_new_scope(cont) {
+ current_scope = new Scope(current_scope);
+ var ret = current_scope.body = cont();
+ ret.scope = current_scope;
+ current_scope = current_scope.parent;
+ return ret;
+ };
+
+ function define(name) {
+ return current_scope.define(name);
+ };
+
+ function reference(name) {
+ current_scope.refs[name] = true;
+ };
+
+ function _lambda(name, args, body) {
+ return [ this[0], define(name), args, with_new_scope(function(){
+ MAP(args, define);
+ return MAP(body, walk);
+ })];
+ };
+
+ return with_new_scope(function(){
+ // process AST
+ var ret = w.with_walkers({
+ "function": _lambda,
+ "defun": _lambda,
+ "with": function(expr, block) {
+ for (var s = current_scope; s; s = s.parent)
+ s.uses_with = true;
+ },
+ "var": function(defs) {
+ MAP(defs, function(d){ define(d[0]) });
+ },
+ "const": function(defs) {
+ MAP(defs, function(d){ define(d[0]) });
+ },
+ "try": function(t, c, f) {
+ if (c != null) return [
+ "try",
+ MAP(t, walk),
+ [ define(c[0]), MAP(c[1], walk) ],
+ f != null ? MAP(f, walk) : null
+ ];
+ },
+ "name": function(name) {
+ if (name == "eval")
+ having_eval.push(current_scope);
+ reference(name);
+ },
+ "for-in": function(has_var, name) {
+ if (has_var) define(name);
+ else reference(name);
+ }
+ }, function(){
+ return walk(ast);
+ });
+
+ // the reason why we need an additional pass here is
+ // that names can be used prior to their definition.
+
+ // scopes where eval was detected and their parents
+ // are marked with uses_eval, unless they define the
+ // "eval" name.
+ MAP(having_eval, function(scope){
+ if (!scope.has("eval")) while (scope) {
+ scope.uses_eval = true;
+ scope = scope.parent;
+ }
+ });
+
+ // for referenced names it might be useful to know
+ // their origin scope. current_scope here is the
+ // toplevel one.
+ function fixrefs(scope, i) {
+ // do children first; order shouldn't matter
+ for (i = scope.children.length; --i >= 0;)
+ fixrefs(scope.children[i]);
+ for (i in scope.refs) if (HOP(scope.refs, i)) {
+ // find origin scope and propagate the reference to origin
+ for (var origin = scope.has(i), s = scope; s; s = s.parent) {
+ s.refs[i] = origin;
+ if (s === origin) break;
+ }
+ }
+ };
+ fixrefs(current_scope);
+
+ return ret;
+ });
+
+};
+
+/* -----[ mangle names ]----- */
+
+function ast_mangle(ast, do_toplevel) {
+ var w = ast_walker(), walk = w.walk, scope;
+
+ function get_mangled(name, newMangle) {
+ if (!do_toplevel && !scope.parent) return name; // don't mangle toplevel
+ return scope.get_mangled(name, newMangle);
+ };
+
+ function _lambda(name, args, body) {
+ if (name) name = get_mangled(name);
+ body = with_scope(body.scope, function(){
+ args = MAP(args, function(name){ return get_mangled(name) });
+ return MAP(body, walk);
+ });
+ return [ this[0], name, args, body ];
+ };
+
+ function with_scope(s, cont) {
+ var _scope = scope;
+ scope = s;
+ for (var i in s.names) if (HOP(s.names, i)) {
+ get_mangled(i, true);
+ }
+ var ret = cont();
+ ret.scope = s;
+ scope = _scope;
+ return ret;
+ };
+
+ function _vardefs(defs) {
+ return MAP(defs, function(d){
+ return [ get_mangled(d[0]), walk(d[1]) ];
+ });
+ };
+
+ return w.with_walkers({
+ "function": _lambda,
+ "defun": function() {
+ // move function declarations to the top when
+ // they are not in some block.
+ var ast = _lambda.apply(this, arguments);
+ switch (w.parent()[0]) {
+ case "toplevel":
+ case "function":
+ case "defun":
+ return MAP.at_top(ast);
+ }
+ return ast;
+ },
+ "var": function(defs) {
+ return [ "var", _vardefs(defs) ];
+ },
+ "const": function(defs) {
+ return [ "const", _vardefs(defs) ];
+ },
+ "name": function(name) {
+ return [ "name", get_mangled(name) ];
+ },
+ "try": function(t, c, f) {
+ return [ "try",
+ MAP(t, walk),
+ c != null ? [ get_mangled(c[0]), MAP(c[1], walk) ] : null,
+ f != null ? MAP(f, walk) : null ];
+ },
+ "toplevel": function(body) {
+ return with_scope(this.scope, function(){
+ return [ "toplevel", MAP(body, walk) ];
+ });
+ },
+ "for-in": function(has_var, name, obj, stat) {
+ return [ "for-in", has_var, get_mangled(name), walk(obj), walk(stat) ];
+ }
+ }, function() {
+ return walk(ast_add_scope(ast));
+ });
+};
+
+/* -----[
+ - compress foo["bar"] into foo.bar,
+ - remove block brackets {} where possible
+ - join consecutive var declarations
+ - various optimizations for IFs:
+ - if (cond) foo(); else bar(); ==> cond?foo():bar();
+ - if (cond) foo(); ==> cond&&foo();
+ - if (foo) return bar(); else return baz(); ==> return foo?bar():baz(); // also for throw
+ - if (foo) return bar(); else something(); ==> {if(foo)return bar();something()}
+ ]----- */
+
+var warn = function(){};
+
+function best_of(ast1, ast2) {
+ return gen_code(ast1).length > gen_code(ast2[0] == "stat" ? ast2[1] : ast2).length ? ast2 : ast1;
+};
+
+function last_stat(b) {
+ if (b[0] == "block" && b[1] && b[1].length > 0)
+ return b[1][b[1].length - 1];
+ return b;
+}
+
+function aborts(t) {
+ if (t) {
+ t = last_stat(t);
+ if (t[0] == "return" || t[0] == "break" || t[0] == "continue" || t[0] == "throw")
+ return true;
+ }
+};
+
+function negate(c) {
+ var not_c = [ "unary-prefix", "!", c ];
+ switch (c[0]) {
+ case "unary-prefix":
+ return c[1] == "!" ? c[2] : not_c;
+ case "binary":
+ var op = c[1], left = c[2], right = c[3];
+ switch (op) {
+ case "<=": return [ "binary", ">", left, right ];
+ case "<": return [ "binary", ">=", left, right ];
+ case ">=": return [ "binary", "<", left, right ];
+ case ">": return [ "binary", "<=", left, right ];
+ case "==": return [ "binary", "!=", left, right ];
+ case "!=": return [ "binary", "==", left, right ];
+ case "===": return [ "binary", "!==", left, right ];
+ case "!==": return [ "binary", "===", left, right ];
+ case "&&": return best_of(not_c, [ "binary", "||", negate(left), negate(right) ]);
+ case "||": return best_of(not_c, [ "binary", "&&", negate(left), negate(right) ]);
+ }
+ break;
+ }
+ return not_c;
+};
+
+function make_conditional(c, t, e) {
+ if (c[0] == "unary-prefix" && c[1] == "!") {
+ return e ? [ "conditional", c[2], e, t ] : [ "binary", "||", c[2], t ];
+ } else {
+ return e ? [ "conditional", c, t, e ] : [ "binary", "&&", c, t ];
+ }
+};
+
+function empty(b) {
+ return !b || (b[0] == "block" && (!b[1] || b[1].length == 0));
+};
+
+function ast_squeeze(ast, options) {
+ options = defaults(options, {
+ make_seqs : true,
+ dead_code : true,
+ no_warnings : false,
+ extra : false
+ });
+
+ var w = ast_walker(), walk = w.walk, scope;
+
+ function with_scope(s, cont) {
+ var _scope = scope;
+ scope = s;
+ var ret = cont();
+ ret.scope = s;
+ scope = _scope;
+ return ret;
+ };
+
+ function is_constant(node) {
+ return node[0] == "string" || node[0] == "num";
+ };
+
+ function find_first_execute(node) {
+ if (!node)
+ return false;
+
+ switch (node[0]) {
+ case "num":
+ case "string":
+ case "name":
+ return node;
+ case "call":
+ case "conditional":
+ case "for":
+ case "if":
+ case "new":
+ case "return":
+ case "stat":
+ case "switch":
+ case "throw":
+ return find_first_execute(node[1]);
+ case "binary":
+ return find_first_execute(node[2]);
+ case "assign":
+ if (node[1] === true)
+ return find_first_execute(node[3]);
+ break;
+ case "var":
+ if (node[1][0].length > 1)
+ return find_first_execute(node[1][0][1]);
+ break;
+ }
+ return null;
+ }
+
+ function find_assign_recursive(p, v) {
+ if (p[0] == "assign" && p[1] != true || p[0] == "unary-prefix") {
+ if (p[2][0] == "name" && v[0] == "name" && p[2][1] == v[1])
+ return true;
+ return false;
+ }
+
+ if (p[0] != "assign" || p[1] !== true)
+ return false;
+
+ if ((is_constant(p[3]) && p[3][0] == v[0] && p[3][1] == v[1]) ||
+ (p[3][0] == "name" && v[0] == "name" && p[3][1] == v[1]) ||
+ (p[2][0] == "name" && v[0] == "name" && p[2][1] == v[1]))
+ return true;
+
+ return find_assign_recursive(p[3], v);
+ };
+
+ function rmblock(block) {
+ if (block != null && block[0] == "block" && block[1] && block[1].length == 1)
+ block = block[1][0];
+ return block;
+ };
+
+ function clone(obj) {
+ if (obj && obj.constructor == Array)
+ return MAP(obj, clone);
+ return obj;
+ };
+
+ function make_seq_to_statements(node) {
+ if (node[0] != "seq") {
+ switch (node[0]) {
+ case "var":
+ case "const":
+ return [ node ];
+ default:
+ return [ [ "stat", node ] ];
+ }
+ }
+
+ var ret = [];
+ for (var i = 1; i < node.length; i++)
+ ret.push.apply(ret, make_seq_to_statements(node[i]));
+
+ return ret;
+ };
+
+ function _lambda(name, args, body) {
+ return [ this[0], name, args, with_scope(body.scope, function(){
+ return tighten(MAP(body, walk), "lambda");
+ }) ];
+ };
+
+ // we get here for blocks that have been already transformed.
+ // this function does a few things:
+ // 1. discard useless blocks
+ // 2. join consecutive var declarations
+ // 3. remove obviously dead code
+ // 4. transform consecutive statements using the comma operator
+ // 5. if block_type == "lambda" and it detects constructs like if(foo) return ... - rewrite like if (!foo) { ... }
+ function tighten(statements, block_type) {
+ statements = statements.reduce(function(a, stat){
+ if (stat[0] == "block") {
+ if (stat[1]) {
+ a.push.apply(a, stat[1]);
+ }
+ } else {
+ a.push(stat);
+ }
+ return a;
+ }, []);
+
+ if (options.extra) {
+ // Detightening things. We do this because then we can assume that the
+ // statements are structured in a specific way.
+ statements = (function(a, prev) {
+ statements.forEach(function(cur) {
+ switch (cur[0]) {
+ case "for":
+ if (cur[1] != null) {
+ a.push.apply(a, make_seq_to_statements(cur[1]));
+ cur[1] = null;
+ }
+ a.push(cur);
+ break;
+ case "stat":
+ var stats = make_seq_to_statements(cur[1]);
+ stats.forEach(function(s) {
+ if (s[1][0] == "unary-postfix")
+ s[1][0] = "unary-prefix";
+ });
+ a.push.apply(a, stats);
+ break;
+ default:
+ a.push(cur);
+ }
+ });
+ return a;
+ })([]);
+
+ statements = (function(a, prev) {
+ statements.forEach(function(cur) {
+ if (!(prev && prev[0] == "stat")) {
+ a.push(cur);
+ prev = cur;
+ return;
+ }
+
+ var p = prev[1];
+ var c = find_first_execute(cur);
+ if (c && find_assign_recursive(p, c)) {
+ var old_cur = clone(cur);
+ c.splice(0, c.length);
+ c.push.apply(c, p);
+ var tmp_cur = best_of(cur, [ "toplevel", [ prev, old_cur ] ]);
+ if (tmp_cur == cur) {
+ a[a.length -1] = cur;
+ } else {
+ cur = old_cur;
+ a.push(cur);
+ }
+ } else {
+ a.push(cur);
+ }
+ prev = cur;
+ });
+ return a;
+ })([]);
+ }
+
+ statements = (function(a, prev){
+ statements.forEach(function(cur){
+ if (prev && ((cur[0] == "var" && prev[0] == "var") ||
+ (cur[0] == "const" && prev[0] == "const"))) {
+ prev[1] = prev[1].concat(cur[1]);
+ } else {
+ a.push(cur);
+ prev = cur;
+ }
+ });
+ return a;
+ })([]);
+
+ if (options.dead_code) statements = (function(a, has_quit){
+ statements.forEach(function(st){
+ if (has_quit) {
+ if (member(st[0], [ "function", "defun" , "var", "const" ])) {
+ a.push(st);
+ }
+ else if (!options.no_warnings)
+ warn("Removing unreachable code: " + gen_code(st, true));
+ }
+ else {
+ a.push(st);
+ if (member(st[0], [ "return", "throw", "break", "continue" ]))
+ has_quit = true;
+ }
+ });
+ return a;
+ })([]);
+
+ if (options.make_seqs) statements = (function(a, prev) {
+ statements.forEach(function(cur){
+ if (prev && prev[0] == "stat" && cur[0] == "stat") {
+ prev[1] = [ "seq", prev[1], cur[1] ];
+ } else {
+ a.push(cur);
+ prev = cur;
+ }
+ });
+ return a;
+ })([]);
+
+ if (options.extra) {
+ statements = (function(a, prev){
+ statements.forEach(function(cur){
+ var replaced = false;
+ if (prev && cur[0] == "for" && cur[1] == null && (prev[0] == "var" || prev[0] == "const" || prev[0] == "stat")) {
+ cur[1] = prev;
+ a[a.length - 1] = cur;
+ } else {
+ a.push(cur);
+ }
+ prev = cur;
+ });
+ return a;
+ })([]);
+ }
+
+ if (block_type == "lambda") statements = (function(i, a, stat){
+ while (i < statements.length) {
+ stat = statements[i++];
+ if (stat[0] == "if" && !stat[3]) {
+ if (stat[2][0] == "return" && stat[2][1] == null) {
+ a.push(make_if(negate(stat[1]), [ "block", statements.slice(i) ]));
+ break;
+ }
+ var last = last_stat(stat[2]);
+ if (last[0] == "return" && last[1] == null) {
+ a.push(make_if(stat[1], [ "block", stat[2][1].slice(0, -1) ], [ "block", statements.slice(i) ]));
+ break;
+ }
+ }
+ a.push(stat);
+ }
+ return a;
+ })(0, []);
+
+ return statements;
+ };
+
+ function make_if(c, t, e) {
+ c = walk(c);
+ t = walk(t);
+ e = walk(e);
+
+ if (empty(t)) {
+ c = negate(c);
+ t = e;
+ e = null;
+ } else if (empty(e)) {
+ e = null;
+ } else {
+ // if we have both else and then, maybe it makes sense to switch them?
+ (function(){
+ var a = gen_code(c);
+ var n = negate(c);
+ var b = gen_code(n);
+ if (b.length < a.length) {
+ var tmp = t;
+ t = e;
+ e = tmp;
+ c = n;
+ }
+ })();
+ }
+ if (empty(e) && empty(t))
+ return [ "stat", c ];
+ var ret = [ "if", c, t, e ];
+ if (t[0] == "stat") {
+ if (e) {
+ if (e[0] == "stat") {
+ ret = best_of(ret, [ "stat", make_conditional(c, t[1], e[1]) ]);
+ }
+ }
+ else {
+ ret = best_of(ret, [ "stat", make_conditional(c, t[1]) ]);
+ }
+ }
+ else if (e && t[0] == e[0] && (t[0] == "return" || t[0] == "throw")) {
+ ret = best_of(ret, [ t[0], make_conditional(c, t[1], e[1] ) ]);
+ }
+ else if (e && aborts(t)) {
+ ret = [ [ "if", c, t ] ];
+ if (e[0] == "block") {
+ if (e[1]) ret = ret.concat(e[1]);
+ }
+ else {
+ ret.push(e);
+ }
+ ret = walk([ "block", ret ]);
+ }
+ else if (t && aborts(e)) {
+ ret = [ [ "if", negate(c), e ] ];
+ if (t[0] == "block") {
+ if (t[1]) ret = ret.concat(t[1]);
+ } else {
+ ret.push(t);
+ }
+ ret = walk([ "block", ret ]);
+ }
+ return ret;
+ };
+
+ return w.with_walkers({
+ "sub": function(expr, subscript) {
+ if (subscript[0] == "string") {
+ var name = subscript[1];
+ if (is_identifier(name)) {
+ return [ "dot", walk(expr), name ];
+ }
+ }
+ },
+ "if": make_if,
+ "toplevel": function(body) {
+ return [ "toplevel", with_scope(this.scope, function(){
+ return tighten(MAP(body, walk));
+ }) ];
+ },
+ "switch": function(expr, body) {
+ var last = body.length - 1;
+ return [ "switch", walk(expr), MAP(body, function(branch, i){
+ var block = tighten(MAP(branch[1], walk));
+ if (i == last && block.length > 0) {
+ var node = block[block.length - 1];
+ if (node[0] == "break" && !node[1])
+ block.pop();
+ }
+ return [ branch[0] ? walk(branch[0]) : null, block ];
+ }) ];
+ },
+ "function": _lambda,
+ "defun": _lambda,
+ "block": function(body) {
+ if (body) return rmblock([ "block", tighten(MAP(body, walk)) ]);
+ },
+ "binary": function(op, left, right) {
+ left = walk(left);
+ right = walk(right);
+ var best = [ "binary", op, left, right ];
+ if (is_constant(right)) {
+ if (is_constant(left)) {
+ var val = null;
+ switch (op) {
+ case "+": val = left[1] + right[1]; break;
+ case "*": val = left[1] * right[1]; break;
+ case "/": val = left[1] / right[1]; break;
+ case "-": val = left[1] - right[1]; break;
+ case "<<": val = left[1] << right[1]; break;
+ case ">>": val = left[1] >> right[1]; break;
+ case ">>>": val = left[1] >>> right[1]; break;
+ }
+ if (val != null) {
+ best = best_of(best, [ typeof val == "string" ? "string" : "num", val ]);
+ }
+ } else if (left[0] == "binary" && left[1] == "+" && left[3][0] == "string") {
+ best = best_of(best, [ "binary", "+", left[2], [ "string", left[3][1] + right[1] ] ]);
+ }
+ }
+ return best;
+ },
+ "conditional": function(c, t, e) {
+ return make_conditional(walk(c), walk(t), walk(e));
+ },
+ "try": function(t, c, f) {
+ return [
+ "try",
+ tighten(MAP(t, walk)),
+ c != null ? [ c[0], tighten(MAP(c[1], walk)) ] : null,
+ f != null ? tighten(MAP(f, walk)) : null
+ ];
+ },
+ "unary-prefix": function(op, cond) {
+ if (op == "!") {
+ cond = walk(cond);
+ if (cond[0] == "unary-prefix" && cond[1] == "!") {
+ var p = w.parent();
+ if (p[0] == "unary-prefix" && p[1] == "!")
+ return cond[2];
+ return [ "unary-prefix", "!", cond ];
+ }
+ return best_of(this, negate(cond));
+ }
+ },
+ "name": function(name) {
+ switch (name) {
+ case "true": return [ "unary-prefix", "!", [ "num", 0 ]];
+ case "false": return [ "unary-prefix", "!", [ "num", 1 ]];
+ }
+ },
+ "new": function(ctor, args) {
+ if (ctor[0] == "name" && ctor[1] == "Array" && !scope.has("Array")) {
+ if (args.length != 1) {
+ return [ "array", args ];
+ } else {
+ return [ "call", [ "name", "Array" ], args ];
+ }
+ }
+ },
+ "call": function(expr, args) {
+ if (expr[0] == "name" && expr[1] == "Array" && args.length != 1 && !scope.has("Array")) {
+ return [ "array", args ];
+ }
+ }
+ }, function() {
+ return walk(ast_add_scope(ast));
+ });
+};
+
+/* -----[ re-generate code from the AST ]----- */
+
+var DOT_CALL_NO_PARENS = jsp.array_to_hash([
+ "name",
+ "array",
+ "string",
+ "dot",
+ "sub",
+ "call",
+ "regexp"
+]);
+
+function make_string(str) {
+ var dq = 0, sq = 0;
+ str = str.replace(/[\\\b\f\n\r\t\x22\x27]/g, function(s){
+ switch (s) {
+ case "\\": return "\\\\";
+ case "\b": return "\\b";
+ case "\f": return "\\f";
+ case "\n": return "\\n";
+ case "\r": return "\\r";
+ case "\t": return "\\t";
+ case '"': ++dq; return '"';
+ case "'": ++sq; return "'";
+ }
+ return s;
+ });
+ if (dq > sq) {
+ return "'" + str.replace(/\x27/g, "\\'") + "'";
+ } else {
+ return '"' + str.replace(/\x22/g, '\\"') + '"';
+ }
+};
+
+function gen_code(ast, beautify) {
+ if (beautify) beautify = defaults(beautify, {
+ indent_start : 0,
+ indent_level : 4,
+ quote_keys : false,
+ space_colon : false
+ });
+ var indentation = 0,
+ newline = beautify ? "\n" : "",
+ space = beautify ? " " : "";
+
+ function indent(line) {
+ if (line == null)
+ line = "";
+ if (beautify)
+ line = repeat_string(" ", beautify.indent_start + indentation * beautify.indent_level) + line;
+ return line;
+ };
+
+ function with_indent(cont, incr) {
+ if (incr == null) incr = 1;
+ indentation += incr;
+ try { return cont.apply(null, slice(arguments, 1)); }
+ finally { indentation -= incr; }
+ };
+
+ function add_spaces(a) {
+ if (beautify)
+ return a.join(" ");
+ var b = [];
+ for (var i = 0; i < a.length; ++i) {
+ var next = a[i + 1];
+ b.push(a[i]);
+ if (next &&
+ ((/[a-z0-9_\x24]$/i.test(a[i].toString()) && /^[a-z0-9_\x24]/i.test(next.toString())) ||
+ (/[\+\-]$/.test(a[i].toString()) && /^[\+\-]/.test(next.toString())))) {
+ b.push(" ");
+ }
+ }
+ return b.join("");
+ };
+
+ function add_commas(a) {
+ return a.join("," + space);
+ };
+
+ function parenthesize(expr) {
+ var gen = make(expr);
+ for (var i = 1; i < arguments.length; ++i) {
+ var el = arguments[i];
+ if ((el instanceof Function && el(expr)) || expr[0] == el)
+ return "(" + gen + ")";
+ }
+ return gen;
+ };
+
+ function best_of(a) {
+ if (a.length == 1) {
+ return a[0];
+ }
+ if (a.length == 2) {
+ var b = a[1];
+ a = a[0];
+ return a.length <= b.length ? a : b;
+ }
+ return best_of([ a[0], best_of(a.slice(1)) ]);
+ };
+
+ function needs_parens(expr) {
+ if (expr[0] == "function") {
+ // dot/call on a literal function requires the
+ // function literal itself to be parenthesized
+ // only if it's the first "thing" in a
+ // statement. This means that the parent is
+ // "stat", but it could also be a "seq" and
+ // we're the first in this "seq" and the
+ // parent is "stat", and so on. Messy stuff,
+ // but it worths the trouble.
+ var a = slice($stack), self = a.pop(), p = a.pop();
+ while (p) {
+ if (p[0] == "stat") return true;
+ if ((p[0] == "seq" && p[1] === self) ||
+ (p[0] == "call" && p[1] === self) ||
+ (p[0] == "binary" && p[2] === self)) {
+ self = p;
+ p = a.pop();
+ } else {
+ return false;
+ }
+ }
+ }
+ return !HOP(DOT_CALL_NO_PARENS, expr[0]);
+ };
+
+ function make_num(num) {
+ var str = num.toString(10), a = [ str.replace(/^0\./, ".") ], m;
+ if (Math.floor(num) === num) {
+ a.push("0x" + num.toString(16).toLowerCase(), // probably pointless
+ "0" + num.toString(8)); // same.
+ if ((m = /^(.*?)(0+)$/.exec(num))) {
+ a.push(m[1] + "e" + m[2].length);
+ }
+ } else if ((m = /^0?\.(0+)(.*)$/.exec(num))) {
+ a.push(m[2] + "e-" + (m[1].length + m[2].length),
+ str.substr(str.indexOf(".")));
+ }
+ return best_of(a);
+ };
+
+ var generators = {
+ "string": make_string,
+ "num": make_num,
+ "name": make_name,
+ "toplevel": function(statements) {
+ return make_block_statements(statements)
+ .join(newline + newline);
+ },
+ "block": make_block,
+ "var": function(defs) {
+ return "var " + add_commas(MAP(defs, make_1vardef)) + ";";
+ },
+ "const": function(defs) {
+ return "const " + add_commas(MAP(defs, make_1vardef)) + ";";
+ },
+ "try": function(tr, ca, fi) {
+ var out = [ "try", make_block(tr) ];
+ if (ca) out.push("catch", "(" + ca[0] + ")", make_block(ca[1]));
+ if (fi) out.push("finally", make_block(fi));
+ return add_spaces(out);
+ },
+ "throw": function(expr) {
+ return add_spaces([ "throw", make(expr) ]) + ";";
+ },
+ "new": function(ctor, args) {
+ args = args.length > 0 ? "(" + add_commas(MAP(args, make)) + ")" : "";
+ return add_spaces([ "new", parenthesize(ctor, "seq", "binary", "conditional", "assign", function(expr){
+ var w = ast_walker(), has_call = {};
+ try {
+ w.with_walkers({
+ "call": function() { throw has_call },
+ "function": function() { return this }
+ }, function(){
+ w.walk(expr);
+ });
+ } catch(ex) {
+ if (ex === has_call)
+ return true;
+ throw ex;
+ }
+ }) + args ]);
+ },
+ "switch": function(expr, body) {
+ return add_spaces([ "switch", "(" + make(expr) + ")", make_switch_block(body) ]);
+ },
+ "break": function(label) {
+ var out = "break";
+ if (label != null)
+ out += " " + make_name(label);
+ return out + ";";
+ },
+ "continue": function(label) {
+ var out = "continue";
+ if (label != null)
+ out += " " + make_name(label);
+ return out + ";";
+ },
+ "conditional": function(co, th, el) {
+ return add_spaces([ parenthesize(co, "assign", "seq", "conditional"), "?",
+ parenthesize(th, "seq"), ":",
+ parenthesize(el, "seq") ]);
+ },
+ "assign": function(op, lvalue, rvalue) {
+ if (op && op !== true) op += "=";
+ else op = "=";
+ return add_spaces([ make(lvalue), op, parenthesize(rvalue, "seq") ]);
+ },
+ "dot": function(expr) {
+ var out = make(expr), i = 1;
+ if (expr[0] == "num")
+ out += ".";
+ else if (needs_parens(expr))
+ out = "(" + out + ")";
+ while (i < arguments.length)
+ out += "." + make_name(arguments[i++]);
+ return out;
+ },
+ "call": function(func, args) {
+ var f = make(func);
+ if (needs_parens(func))
+ f = "(" + f + ")";
+ return f + "(" + add_commas(MAP(args, function(expr){
+ return parenthesize(expr, "seq");
+ })) + ")";
+ },
+ "function": make_function,
+ "defun": make_function,
+ "if": function(co, th, el) {
+ var out = [ "if", "(" + make(co) + ")", el ? make_then(th) : make(th) ];
+ if (el) {
+ out.push("else", make(el));
+ }
+ return add_spaces(out);
+ },
+ "for": function(init, cond, step, block) {
+ var out = [ "for" ];
+ init = (init != null ? make(init) : "").replace(/;*\s*$/, ";" + space);
+ cond = (cond != null ? make(cond) : "").replace(/;*\s*$/, ";" + space);
+ step = (step != null ? make(step) : "").replace(/;*\s*$/, "");
+ var args = init + cond + step;
+ if (args == "; ; ") args = ";;";
+ out.push("(" + args + ")", make(block));
+ return add_spaces(out);
+ },
+ "for-in": function(has_var, key, hash, block) {
+ var out = add_spaces([ "for", "(" ]);
+ if (has_var)
+ out += "var ";
+ out += add_spaces([ make_name(key) + " in " + make(hash) + ")", make(block) ]);
+ return out;
+ },
+ "while": function(condition, block) {
+ return add_spaces([ "while", "(" + make(condition) + ")", make(block) ]);
+ },
+ "do": function(condition, block) {
+ return add_spaces([ "do", make(block), "while", "(" + make(condition) + ")" ]) + ";";
+ },
+ "return": function(expr) {
+ var out = [ "return" ];
+ if (expr != null) out.push(make(expr));
+ return add_spaces(out) + ";";
+ },
+ "binary": function(operator, lvalue, rvalue) {
+ var left = make(lvalue), right = make(rvalue);
+ // XXX: I'm pretty sure other cases will bite here.
+ // we need to be smarter.
+ // adding parens all the time is the safest bet.
+ if (member(lvalue[0], [ "assign", "conditional", "seq" ]) ||
+ lvalue[0] == "binary" && PRECEDENCE[operator] > PRECEDENCE[lvalue[1]]) {
+ left = "(" + left + ")";
+ }
+ if (member(rvalue[0], [ "assign", "conditional", "seq" ]) ||
+ rvalue[0] == "binary" && PRECEDENCE[operator] >= PRECEDENCE[rvalue[1]]) {
+ right = "(" + right + ")";
+ }
+ return add_spaces([ left, operator, right ]);
+ },
+ "unary-prefix": function(operator, expr) {
+ var val = make(expr);
+ if (!(expr[0] == "num" || (expr[0] == "unary-prefix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
+ val = "(" + val + ")";
+ return operator + (jsp.is_alphanumeric_char(operator.charAt(0)) ? " " : "") + val;
+ },
+ "unary-postfix": function(operator, expr) {
+ var val = make(expr);
+ if (!(expr[0] == "num" || (expr[0] == "unary-postfix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
+ val = "(" + val + ")";
+ return val + operator;
+ },
+ "sub": function(expr, subscript) {
+ var hash = make(expr);
+ if (needs_parens(expr))
+ hash = "(" + hash + ")";
+ return hash + "[" + make(subscript) + "]";
+ },
+ "object": function(props) {
+ if (props.length == 0)
+ return "{}";
+ return "{" + newline + with_indent(function(){
+ return MAP(props, function(p){
+ if (p.length == 3) {
+ // getter/setter. The name is in p[0], the arg.list in p[1][2], the
+ // body in p[1][3] and type ("get" / "set") in p[2].
+ return indent(make_function(p[0], p[1][2], p[1][3], p[2]));
+ }
+ var key = p[0], val = make(p[1]);
+ if (beautify && beautify.quote_keys) {
+ key = make_string(key);
+ } else if (typeof key == "number" || !beautify && +key + "" == key) {
+ key = make_num(+key);
+ } else if (!is_identifier(key)) {
+ key = make_string(key);
+ }
+ return indent(add_spaces(beautify && beautify.space_colon
+ ? [ key, ":", val ]
+ : [ key + ":", val ]));
+ }).join("," + newline);
+ }) + newline + indent("}");
+ },
+ "regexp": function(rx, mods) {
+ return "/" + rx + "/" + mods;
+ },
+ "array": function(elements) {
+ if (elements.length == 0) return "[]";
+ return add_spaces([ "[", add_commas(MAP(elements, function(el){
+ return parenthesize(el, "seq");
+ })), "]" ]);
+ },
+ "stat": function(stmt) {
+ return make(stmt).replace(/;*\s*$/, ";");
+ },
+ "seq": function() {
+ return add_commas(MAP(slice(arguments), make));
+ },
+ "label": function(name, block) {
+ return add_spaces([ make_name(name), ":", make(block) ]);
+ },
+ "with": function(expr, block) {
+ return add_spaces([ "with", "(" + make(expr) + ")", make(block) ]);
+ },
+ "atom": function(name) {
+ return make_name(name);
+ },
+ "comment1": function(text) {
+ return "//" + text + "\n";
+ },
+ "comment2": function(text) {
+ return "/*" + text + "*/";
+ }
+ };
+
+ // The squeezer replaces "block"-s that contain only a single
+ // statement with the statement itself; technically, the AST
+ // is correct, but this can create problems when we output an
+ // IF having an ELSE clause where the THEN clause ends in an
+ // IF *without* an ELSE block (then the outer ELSE would refer
+ // to the inner IF). This function checks for this case and
+ // adds the block brackets if needed.
+ function make_then(th) {
+ if (th[0] == "do") {
+ // https://github.com/mishoo/UglifyJS/issues/#issue/57
+ // IE croaks with "syntax error" on code like this:
+ // if (foo) do ... while(cond); else ...
+ // we need block brackets around do/while
+ return make([ "block", [ th ]]);
+ }
+ var b = th;
+ while (true) {
+ var type = b[0];
+ if (type == "if") {
+ if (!b[3])
+ // no else, we must add the block
+ return make([ "block", [ th ]]);
+ b = b[3];
+ }
+ else if (type == "while" || type == "do") b = b[2];
+ else if (type == "for" || type == "for-in") b = b[4];
+ else break;
+ }
+ return make(th);
+ };
+
+ function make_function(name, args, body, keyword) {
+ var out = keyword || "function";
+ if (name) {
+ out += " " + make_name(name);
+ }
+ out += "(" + add_commas(MAP(args, make_name)) + ")";
+ return add_spaces([ out, make_block(body) ]);
+ };
+
+ function make_name(name) {
+ return name.toString();
+ };
+
+ function make_block_statements(statements) {
+ for (var a = [], last = statements.length - 1, i = 0; i <= last; ++i) {
+ var stat = statements[i];
+ var code = make(stat);
+ if (code != ";") {
+ if (!beautify && i == last)
+ code = code.replace(/;+\s*$/, "");
+ a.push(code);
+ }
+ }
+ return MAP(a, indent);
+ };
+
+ function make_switch_block(body) {
+ var n = body.length;
+ if (n == 0) return "{}";
+ return "{" + newline + MAP(body, function(branch, i){
+ var has_body = branch[1].length > 0, code = with_indent(function(){
+ return indent(branch[0]
+ ? add_spaces([ "case", make(branch[0]) + ":" ])
+ : "default:");
+ }, 0.5) + (has_body ? newline + with_indent(function(){
+ return make_block_statements(branch[1]).join(newline);
+ }) : "");
+ if (!beautify && has_body && i < n - 1)
+ code += ";";
+ return code;
+ }).join(newline) + newline + indent("}");
+ };
+
+ function make_block(statements) {
+ if (!statements) return ";";
+ if (statements.length == 0) return "{}";
+ return "{" + newline + with_indent(function(){
+ return make_block_statements(statements).join(newline);
+ }) + newline + indent("}");
+ };
+
+ function make_1vardef(def) {
+ var name = def[0], val = def[1];
+ if (val != null)
+ name = add_spaces([ name, "=", make(val) ]);
+ return name;
+ };
+
+ var $stack = [];
+
+ function make(node) {
+ var type = node[0];
+ var gen = generators[type];
+ if (!gen)
+ throw new Error("Can't find generator for \"" + type + "\"");
+ $stack.push(node);
+ var ret = gen.apply(type, node.slice(1));
+ $stack.pop();
+ return ret;
+ };
+
+ return make(ast);
+};
+
+/* -----[ Utilities ]----- */
+
+function repeat_string(str, i) {
+ if (i <= 0) return "";
+ if (i == 1) return str;
+ var d = repeat_string(str, i >> 1);
+ d += d;
+ if (i & 1) d += str;
+ return d;
+};
+
+function defaults(args, defs) {
+ var ret = {};
+ if (args === true)
+ args = {};
+ for (var i in defs) if (HOP(defs, i)) {
+ ret[i] = (args && HOP(args, i)) ? args[i] : defs[i];
+ }
+ return ret;
+};
+
+function is_identifier(name) {
+ return /^[a-z_$][a-z0-9_$]*$/i.test(name)
+ && name != "this"
+ && !HOP(jsp.KEYWORDS_ATOM, name)
+ && !HOP(jsp.RESERVED_WORDS, name)
+ && !HOP(jsp.KEYWORDS, name);
+};
+
+function HOP(obj, prop) {
+ return Object.prototype.hasOwnProperty.call(obj, prop);
+};
+
+// some utilities
+
+var MAP;
+
+(function(){
+ MAP = function(a, f, o) {
+ var ret = [];
+ for (var i = 0; i < a.length; ++i) {
+ var val = f.call(o, a[i], i);
+ if (val instanceof AtTop) ret.unshift(val.v);
+ else ret.push(val);
+ }
+ return ret;
+ };
+ MAP.at_top = function(val) { return new AtTop(val) };
+ function AtTop(val) { this.v = val };
+})();
+
+/* -----[ Exports ]----- */
+
+exports.ast_walker = ast_walker;
+exports.ast_mangle = ast_mangle;
+exports.ast_squeeze = ast_squeeze;
+exports.gen_code = gen_code;
+exports.ast_add_scope = ast_add_scope;
+exports.ast_squeeze_more = require("./squeeze-more").ast_squeeze_more;
+exports.set_logger = function(logger) { warn = logger };
--- /dev/null
+var jsp = require("./parse-js"),
+ pro = require("./process"),
+ slice = jsp.slice,
+ member = jsp.member,
+ PRECEDENCE = jsp.PRECEDENCE,
+ OPERATORS = jsp.OPERATORS;
+
+function ast_squeeze_more(ast) {
+ var w = pro.ast_walker(), walk = w.walk;
+ return w.with_walkers({
+ "call": function(expr, args) {
+ if (expr[0] == "dot" && expr[2] == "toString" && args.length == 0) {
+ // foo.toString() ==> foo+""
+ return [ "binary", "+", expr[1], [ "string", "" ]];
+ }
+ }
+ }, function() {
+ return walk(ast);
+ });
+};
+
+exports.ast_squeeze_more = ast_squeeze_more;
--- /dev/null
+#! /usr/bin/env node
+// -*- js2 -*-
+
+global.sys = require(/^v0\.[012]/.test(process.version) ? "sys" : "util");
+var fs = require("fs"),
+ jsp = require("./lib/parse-js"),
+ pro = require("./lib/process");
+
+pro.set_logger(function(msg){
+ sys.debug(msg);
+});
+
+var options = {
+ ast: false,
+ mangle: true,
+ mangle_toplevel: false,
+ squeeze: true,
+ make_seqs: true,
+ dead_code: true,
+ beautify: false,
+ verbose: false,
+ show_copyright: true,
+ out_same_file: false,
+ extra: false,
+ unsafe: false, // XXX: extra & unsafe? but maybe we don't want both, so....
+ beautify_options: {
+ indent_level: 4,
+ indent_start: 0,
+ quote_keys: false,
+ space_colon: false
+ },
+ output: true // stdout
+};
+
+var args = jsp.slice(process.argv, 2);
+var filename;
+
+out: while (args.length > 0) {
+ var v = args.shift();
+ switch (v) {
+ case "-b":
+ case "--beautify":
+ options.beautify = true;
+ break;
+ case "-i":
+ case "--indent":
+ options.beautify_options.indent_level = args.shift();
+ break;
+ case "-q":
+ case "--quote-keys":
+ options.beautify_options.quote_keys = true;
+ break;
+ case "-mt":
+ case "--mangle-toplevel":
+ options.mangle_toplevel = true;
+ break;
+ case "--no-mangle":
+ case "-nm":
+ options.mangle = false;
+ break;
+ case "--no-squeeze":
+ case "-ns":
+ options.squeeze = false;
+ break;
+ case "--no-seqs":
+ options.make_seqs = false;
+ break;
+ case "--no-dead-code":
+ options.dead_code = false;
+ break;
+ case "--no-copyright":
+ case "-nc":
+ options.show_copyright = false;
+ break;
+ case "-o":
+ case "--output":
+ options.output = args.shift();
+ break;
+ case "--overwrite":
+ options.out_same_file = true;
+ break;
+ case "-v":
+ case "--verbose":
+ options.verbose = true;
+ break;
+ case "--ast":
+ options.ast = true;
+ break;
+ case "--extra":
+ options.extra = true;
+ break;
+ case "--unsafe":
+ options.unsafe = true;
+ break;
+ default:
+ filename = v;
+ break out;
+ }
+}
+
+if (filename) {
+ fs.readFile(filename, "utf8", function(err, text){
+ if (err) {
+ throw err;
+ }
+ output(squeeze_it(text));
+ });
+} else {
+ var stdin = process.openStdin();
+ stdin.setEncoding("utf8");
+ var text = "";
+ stdin.on("data", function(chunk){
+ text += chunk;
+ });
+ stdin.on("end", function() {
+ output(squeeze_it(text));
+ });
+}
+
+function output(text) {
+ var out;
+ if (options.out_same_file && filename)
+ options.output = filename;
+ if (options.output === true) {
+ out = process.stdout;
+ } else {
+ out = fs.createWriteStream(options.output, {
+ flags: "w",
+ encoding: "utf8",
+ mode: 0644
+ });
+ }
+ out.write(text);
+ out.end();
+};
+
+// --------- main ends here.
+
+function show_copyright(comments) {
+ var ret = "";
+ for (var i = 0; i < comments.length; ++i) {
+ var c = comments[i];
+ if (c.type == "comment1") {
+ ret += "//" + c.value + "\n";
+ } else {
+ ret += "/*" + c.value + "*/";
+ }
+ }
+ return ret;
+};
+
+function squeeze_it(code) {
+ var result = "";
+ if (options.show_copyright) {
+ var initial_comments = [];
+ // keep first comment
+ var tok = jsp.tokenizer(code, false), c;
+ c = tok();
+ var prev = null;
+ while (/^comment/.test(c.type) && (!prev || prev == c.type)) {
+ initial_comments.push(c);
+ prev = c.type;
+ c = tok();
+ }
+ result += show_copyright(initial_comments);
+ }
+ try {
+ var ast = time_it("parse", function(){ return jsp.parse(code); });
+ if (options.mangle)
+ ast = time_it("mangle", function(){ return pro.ast_mangle(ast, options.mangle_toplevel); });
+ if (options.squeeze)
+ ast = time_it("squeeze", function(){
+ ast = pro.ast_squeeze(ast, {
+ make_seqs : options.make_seqs,
+ dead_code : options.dead_code,
+ extra : options.extra
+ });
+ if (options.unsafe)
+ ast = pro.ast_squeeze_more(ast);
+ return ast;
+ });
+ if (options.ast)
+ return sys.inspect(ast, null, null);
+ result += time_it("generate", function(){ return pro.gen_code(ast, options.beautify && options.beautify_options) });
+ return result;
+ } catch(ex) {
+ sys.debug(ex.stack);
+ sys.debug(sys.inspect(ex));
+ sys.debug(JSON.stringify(ex));
+ }
+};
+
+function time_it(name, cont) {
+ if (!options.verbose)
+ return cont();
+ var t1 = new Date().getTime();
+ try { return cont(); }
+ finally { sys.debug("// " + name + ": " + ((new Date().getTime() - t1) / 1000).toFixed(3) + " sec."); }
+};
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