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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// Mathematica mode copyright (c) 2015 by Calin Barbat
// Based on code by Patrick Scheibe (halirutan)
// See: https://github.com/halirutan/Mathematica-Source-Highlighting/tree/master/src/lang-mma.js
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineMode('mathematica', function(_config, _parserConfig) {
// used pattern building blocks
var Identifier = '[a-zA-Z\\$][a-zA-Z0-9\\$]*';
var pBase = "(?:\\d+)";
var pFloat = "(?:\\.\\d+|\\d+\\.\\d*|\\d+)";
var pFloatBase = "(?:\\.\\w+|\\w+\\.\\w*|\\w+)";
var pPrecision = "(?:`(?:`?"+pFloat+")?)";
// regular expressions
var reBaseForm = new RegExp('(?:'+pBase+'(?:\\^\\^'+pFloatBase+pPrecision+'?(?:\\*\\^[+-]?\\d+)?))');
var reFloatForm = new RegExp('(?:' + pFloat + pPrecision + '?(?:\\*\\^[+-]?\\d+)?)');
var reIdInContext = new RegExp('(?:`?)(?:' + Identifier + ')(?:`(?:' + Identifier + '))*(?:`?)');
function tokenBase(stream, state) {
var ch;
// get next character
ch = stream.next();
// string
if (ch === '"') {
state.tokenize = tokenString;
return state.tokenize(stream, state);
}
// comment
if (ch === '(') {
if (stream.eat('*')) {
state.commentLevel++;
state.tokenize = tokenComment;
return state.tokenize(stream, state);
}
}
// go back one character
stream.backUp(1);
// look for numbers
// Numbers in a baseform
if (stream.match(reBaseForm, true, false)) {
return 'number';
}
// Mathematica numbers. Floats (1.2, .2, 1.) can have optionally a precision (`float) or an accuracy definition
// (``float). Note: while 1.2` is possible 1.2`` is not. At the end an exponent (float*^+12) can follow.
if (stream.match(reFloatForm, true, false)) {
return 'number';
}
/* In[23] and Out[34] */
if (stream.match(/(?:In|Out)\[[0-9]*\]/, true, false)) {
return 'atom';
}
// usage
if (stream.match(/([a-zA-Z\$]+(?:`?[a-zA-Z0-9\$])*::usage)/, true, false)) {
return 'meta';
}
// message
if (stream.match(/([a-zA-Z\$]+(?:`?[a-zA-Z0-9\$])*::[a-zA-Z\$][a-zA-Z0-9\$]*):?/, true, false)) {
return 'string-2';
}
// this makes a look-ahead match for something like variable:{_Integer}
// the match is then forwarded to the mma-patterns tokenizer.
if (stream.match(/([a-zA-Z\$][a-zA-Z0-9\$]*\s*:)(?:(?:[a-zA-Z\$][a-zA-Z0-9\$]*)|(?:[^:=>~@\^\&\*\)\[\]'\?,\|])).*/, true, false)) {
return 'variable-2';
}
// catch variables which are used together with Blank (_), BlankSequence (__) or BlankNullSequence (___)
// Cannot start with a number, but can have numbers at any other position. Examples
// blub__Integer, a1_, b34_Integer32
if (stream.match(/[a-zA-Z\$][a-zA-Z0-9\$]*_+[a-zA-Z\$][a-zA-Z0-9\$]*/, true, false)) {
return 'variable-2';
}
if (stream.match(/[a-zA-Z\$][a-zA-Z0-9\$]*_+/, true, false)) {
return 'variable-2';
}
if (stream.match(/_+[a-zA-Z\$][a-zA-Z0-9\$]*/, true, false)) {
return 'variable-2';
}
// Named characters in Mathematica, like \[Gamma].
if (stream.match(/\\\[[a-zA-Z\$][a-zA-Z0-9\$]*\]/, true, false)) {
return 'variable-3';
}
// Match all braces separately
if (stream.match(/(?:\[|\]|{|}|\(|\))/, true, false)) {
return 'bracket';
}
// Catch Slots (#, ##, #3, ##9 and the V10 named slots #name). I have never seen someone using more than one digit after #, so we match
// only one.
if (stream.match(/(?:#[a-zA-Z\$][a-zA-Z0-9\$]*|#+[0-9]?)/, true, false)) {
return 'variable-2';
}
// Literals like variables, keywords, functions
if (stream.match(reIdInContext, true, false)) {
return 'keyword';
}
// operators. Note that operators like @@ or /; are matched separately for each symbol.
if (stream.match(/(?:\\|\+|\-|\*|\/|,|;|\.|:|@|~|=|>|<|&|\||_|`|'|\^|\?|!|%)/, true, false)) {
return 'operator';
}
// everything else is an error
stream.next(); // advance the stream.
return 'error';
}
function tokenString(stream, state) {
var next, end = false, escaped = false;
while ((next = stream.next()) != null) {
if (next === '"' && !escaped) {
end = true;
break;
}
escaped = !escaped && next === '\\';
}
if (end && !escaped) {
state.tokenize = tokenBase;
}
return 'string';
};
function tokenComment(stream, state) {
var prev, next;
while(state.commentLevel > 0 && (next = stream.next()) != null) {
if (prev === '(' && next === '*') state.commentLevel++;
if (prev === '*' && next === ')') state.commentLevel--;
prev = next;
}
if (state.commentLevel <= 0) {
state.tokenize = tokenBase;
}
return 'comment';
}
return {
startState: function() {return {tokenize: tokenBase, commentLevel: 0};},
token: function(stream, state) {
if (stream.eatSpace()) return null;
return state.tokenize(stream, state);
},
blockCommentStart: "(*",
blockCommentEnd: "*)"
};
});
CodeMirror.defineMIME('text/x-mathematica', {
name: 'mathematica'
});
});
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