+++ /dev/null
-# vim:ts=4:sw=4:
-# = RedCloth - Textile and Markdown Hybrid for Ruby
-#
-# Homepage:: http://whytheluckystiff.net/ruby/redcloth/
-# Author:: why the lucky stiff (http://whytheluckystiff.net/)
-# Copyright:: (cc) 2004 why the lucky stiff (and his puppet organizations.)
-# License:: BSD
-#
-# (see http://hobix.com/textile/ for a Textile Reference.)
-#
-# Based on (and also inspired by) both:
-#
-# PyTextile: http://diveintomark.org/projects/textile/textile.py.txt
-# Textism for PHP: http://www.textism.com/tools/textile/
-#
-#
-
-# = RedCloth
-#
-# RedCloth is a Ruby library for converting Textile and/or Markdown
-# into HTML. You can use either format, intermingled or separately.
-# You can also extend RedCloth to honor your own custom text stylings.
-#
-# RedCloth users are encouraged to use Textile if they are generating
-# HTML and to use Markdown if others will be viewing the plain text.
-#
-# == What is Textile?
-#
-# Textile is a simple formatting style for text
-# documents, loosely based on some HTML conventions.
-#
-# == Sample Textile Text
-#
-# h2. This is a title
-#
-# h3. This is a subhead
-#
-# This is a bit of paragraph.
-#
-# bq. This is a blockquote.
-#
-# = Writing Textile
-#
-# A Textile document consists of paragraphs. Paragraphs
-# can be specially formatted by adding a small instruction
-# to the beginning of the paragraph.
-#
-# h[n]. Header of size [n].
-# bq. Blockquote.
-# # Numeric list.
-# * Bulleted list.
-#
-# == Quick Phrase Modifiers
-#
-# Quick phrase modifiers are also included, to allow formatting
-# of small portions of text within a paragraph.
-#
-# \_emphasis\_
-# \_\_italicized\_\_
-# \*strong\*
-# \*\*bold\*\*
-# ??citation??
-# -deleted text-
-# +inserted text+
-# ^superscript^
-# ~subscript~
-# @code@
-# %(classname)span%
-#
-# ==notextile== (leave text alone)
-#
-# == Links
-#
-# To make a hypertext link, put the link text in "quotation
-# marks" followed immediately by a colon and the URL of the link.
-#
-# Optional: text in (parentheses) following the link text,
-# but before the closing quotation mark, will become a Title
-# attribute for the link, visible as a tool tip when a cursor is above it.
-#
-# Example:
-#
-# "This is a link (This is a title) ":http://www.textism.com
-#
-# Will become:
-#
-# <a href="http://www.textism.com" title="This is a title">This is a link</a>
-#
-# == Images
-#
-# To insert an image, put the URL for the image inside exclamation marks.
-#
-# Optional: text that immediately follows the URL in (parentheses) will
-# be used as the Alt text for the image. Images on the web should always
-# have descriptive Alt text for the benefit of readers using non-graphical
-# browsers.
-#
-# Optional: place a colon followed by a URL immediately after the
-# closing ! to make the image into a link.
-#
-# Example:
-#
-# !http://www.textism.com/common/textist.gif(Textist)!
-#
-# Will become:
-#
-# <img src="http://www.textism.com/common/textist.gif" alt="Textist" />
-#
-# With a link:
-#
-# !/common/textist.gif(Textist)!:http://textism.com
-#
-# Will become:
-#
-# <a href="http://textism.com"><img src="/common/textist.gif" alt="Textist" /></a>
-#
-# == Defining Acronyms
-#
-# HTML allows authors to define acronyms via the tag. The definition appears as a
-# tool tip when a cursor hovers over the acronym. A crucial aid to clear writing,
-# this should be used at least once for each acronym in documents where they appear.
-#
-# To quickly define an acronym in Textile, place the full text in (parentheses)
-# immediately following the acronym.
-#
-# Example:
-#
-# ACLU(American Civil Liberties Union)
-#
-# Will become:
-#
-# <acronym title="American Civil Liberties Union">ACLU</acronym>
-#
-# == Adding Tables
-#
-# In Textile, simple tables can be added by seperating each column by
-# a pipe.
-#
-# |a|simple|table|row|
-# |And|Another|table|row|
-#
-# Attributes are defined by style definitions in parentheses.
-#
-# table(border:1px solid black).
-# (background:#ddd;color:red). |{}| | | |
-#
-# == Using RedCloth
-#
-# RedCloth is simply an extension of the String class, which can handle
-# Textile formatting. Use it like a String and output HTML with its
-# RedCloth#to_html method.
-#
-# doc = RedCloth.new "
-#
-# h2. Test document
-#
-# Just a simple test."
-#
-# puts doc.to_html
-#
-# By default, RedCloth uses both Textile and Markdown formatting, with
-# Textile formatting taking precedence. If you want to turn off Markdown
-# formatting, to boost speed and limit the processor:
-#
-# class RedCloth::Textile.new( str )
-
-class RedCloth < String
-
- VERSION = '3.0.4'
- DEFAULT_RULES = [:textile, :markdown]
-
- #
- # Two accessor for setting security restrictions.
- #
- # This is a nice thing if you're using RedCloth for
- # formatting in public places (e.g. Wikis) where you
- # don't want users to abuse HTML for bad things.
- #
- # If +:filter_html+ is set, HTML which wasn't
- # created by the Textile processor will be escaped.
- #
- # If +:filter_styles+ is set, it will also disable
- # the style markup specifier. ('{color: red}')
- #
- attr_accessor :filter_html, :filter_styles
-
- #
- # Accessor for toggling hard breaks.
- #
- # If +:hard_breaks+ is set, single newlines will
- # be converted to HTML break tags. This is the
- # default behavior for traditional RedCloth.
- #
- attr_accessor :hard_breaks
-
- # Accessor for toggling lite mode.
- #
- # In lite mode, block-level rules are ignored. This means
- # that tables, paragraphs, lists, and such aren't available.
- # Only the inline markup for bold, italics, entities and so on.
- #
- # r = RedCloth.new( "And then? She *fell*!", [:lite_mode] )
- # r.to_html
- # #=> "And then? She <strong>fell</strong>!"
- #
- attr_accessor :lite_mode
-
- #
- # Accessor for toggling span caps.
- #
- # Textile places `span' tags around capitalized
- # words by default, but this wreaks havoc on Wikis.
- # If +:no_span_caps+ is set, this will be
- # suppressed.
- #
- attr_accessor :no_span_caps
-
- #
- # Establishes the markup predence. Available rules include:
- #
- # == Textile Rules
- #
- # The following textile rules can be set individually. Or add the complete
- # set of rules with the single :textile rule, which supplies the rule set in
- # the following precedence:
- #
- # refs_textile:: Textile references (i.e. [hobix]http://hobix.com/)
- # block_textile_table:: Textile table block structures
- # block_textile_lists:: Textile list structures
- # block_textile_prefix:: Textile blocks with prefixes (i.e. bq., h2., etc.)
- # inline_textile_image:: Textile inline images
- # inline_textile_link:: Textile inline links
- # inline_textile_span:: Textile inline spans
- # glyphs_textile:: Textile entities (such as em-dashes and smart quotes)
- #
- # == Markdown
- #
- # refs_markdown:: Markdown references (for example: [hobix]: http://hobix.com/)
- # block_markdown_setext:: Markdown setext headers
- # block_markdown_atx:: Markdown atx headers
- # block_markdown_rule:: Markdown horizontal rules
- # block_markdown_bq:: Markdown blockquotes
- # block_markdown_lists:: Markdown lists
- # inline_markdown_link:: Markdown links
- attr_accessor :rules
-
- # Returns a new RedCloth object, based on _string_ and
- # enforcing all the included _restrictions_.
- #
- # r = RedCloth.new( "h1. A <b>bold</b> man", [:filter_html] )
- # r.to_html
- # #=>"<h1>A <b>bold</b> man</h1>"
- #
- def initialize( string, restrictions = [] )
- restrictions.each { |r| method( "#{ r }=" ).call( true ) }
- super( string )
- end
-
- #
- # Generates HTML from the Textile contents.
- #
- # r = RedCloth.new( "And then? She *fell*!" )
- # r.to_html( true )
- # #=>"And then? She <strong>fell</strong>!"
- #
- def to_html( *rules )
- rules = DEFAULT_RULES if rules.empty?
- # make our working copy
- text = self.dup
-
- @urlrefs = {}
- @shelf = []
- textile_rules = [:refs_textile, :block_textile_table, :block_textile_lists,
- :block_textile_prefix, :inline_textile_image, :inline_textile_link,
- :inline_textile_code, :inline_textile_span]
- markdown_rules = [:refs_markdown, :block_markdown_setext, :block_markdown_atx, :block_markdown_rule,
- :block_markdown_bq, :block_markdown_lists,
- :inline_markdown_reflink, :inline_markdown_link]
- @rules = rules.collect do |rule|
- case rule
- when :markdown
- markdown_rules
- when :textile
- textile_rules
- else
- rule
- end
- end.flatten
-
- # standard clean up
- incoming_entities text
- clean_white_space text
-
- # start processor
- @pre_list = []
- rip_offtags text
- no_textile text
- escape_html_tags text
- hard_break text
- unless @lite_mode
- refs text
- # need to do this before text is split by #blocks
- block_textile_quotes text
- blocks text
- end
- inline text
- smooth_offtags text
-
- retrieve text
-
- text.gsub!( /<\/?notextile>/, '' )
- text.gsub!( /x%x%/, '&' )
- clean_html text if filter_html
- text.strip!
- text
-
- end
-
- #######
- private
- #######
- #
- # Mapping of 8-bit ASCII codes to HTML numerical entity equivalents.
- # (from PyTextile)
- #
- TEXTILE_TAGS =
-
- [[128, 8364], [129, 0], [130, 8218], [131, 402], [132, 8222], [133, 8230],
- [134, 8224], [135, 8225], [136, 710], [137, 8240], [138, 352], [139, 8249],
- [140, 338], [141, 0], [142, 0], [143, 0], [144, 0], [145, 8216], [146, 8217],
- [147, 8220], [148, 8221], [149, 8226], [150, 8211], [151, 8212], [152, 732],
- [153, 8482], [154, 353], [155, 8250], [156, 339], [157, 0], [158, 0], [159, 376]].
-
- collect! do |a, b|
- [a.chr, ( b.zero? and "" or "&#{ b };" )]
- end
-
- #
- # Regular expressions to convert to HTML.
- #
- A_HLGN = /(?:(?:<>|<|>|\=|[()]+)+)/
- A_VLGN = /[\-^~]/
- C_CLAS = '(?:\([^)]+\))'
- C_LNGE = '(?:\[[^\]]+\])'
- C_STYL = '(?:\{[^}]+\})'
- S_CSPN = '(?:\\\\\d+)'
- S_RSPN = '(?:/\d+)'
- A = "(?:#{A_HLGN}?#{A_VLGN}?|#{A_VLGN}?#{A_HLGN}?)"
- S = "(?:#{S_CSPN}?#{S_RSPN}|#{S_RSPN}?#{S_CSPN}?)"
- C = "(?:#{C_CLAS}?#{C_STYL}?#{C_LNGE}?|#{C_STYL}?#{C_LNGE}?#{C_CLAS}?|#{C_LNGE}?#{C_STYL}?#{C_CLAS}?)"
- # PUNCT = Regexp::quote( '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' )
- PUNCT = Regexp::quote( '!"#$%&\'*+,-./:;=?@\\^_`|~' )
- PUNCT_NOQ = Regexp::quote( '!"#$&\',./:;=?@\\`|' )
- PUNCT_Q = Regexp::quote( '*-_+^~%' )
- HYPERLINK = '(\S+?)([^\w\s/;=\?]*?)(?=\s|<|$)'
-
- # Text markup tags, don't conflict with block tags
- SIMPLE_HTML_TAGS = [
- 'tt', 'b', 'i', 'big', 'small', 'em', 'strong', 'dfn', 'code',
- 'samp', 'kbd', 'var', 'cite', 'abbr', 'acronym', 'a', 'img', 'br',
- 'br', 'map', 'q', 'sub', 'sup', 'span', 'bdo'
- ]
-
- QTAGS = [
- ['**', 'b', :limit],
- ['*', 'strong', :limit],
- ['??', 'cite', :limit],
- ['-', 'del', :limit],
- ['__', 'i', :limit],
- ['_', 'em', :limit],
- ['%', 'span', :limit],
- ['+', 'ins', :limit],
- ['^', 'sup', :limit],
- ['~', 'sub', :limit]
- ]
- QTAGS.collect! do |rc, ht, rtype|
- rcq = Regexp::quote rc
- re =
- case rtype
- when :limit
- /(^|[>\s\(])
- (#{rcq})
- (#{C})
- (?::(\S+?))?
- ([^\s\-].*?[^\s\-]|\w)
- #{rcq}
- (?=[[:punct:]]|\s|\)|$)/x
- else
- /(#{rcq})
- (#{C})
- (?::(\S+))?
- ([^\s\-].*?[^\s\-]|\w)
- #{rcq}/xm
- end
- [rc, ht, re, rtype]
- end
-
- # Elements to handle
- GLYPHS = [
- # [ /([^\s\[{(>])?\'([dmst]\b|ll\b|ve\b|\s|:|$)/, '\1’\2' ], # single closing
- # [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)\'/, '\1’' ], # single closing
- # [ /\'(?=[#{PUNCT_Q}]*(s\b|[\s#{PUNCT_NOQ}]))/, '’' ], # single closing
- # [ /\'/, '‘' ], # single opening
- [ /</, '<' ], # less-than
- [ />/, '>' ], # greater-than
- # [ /([^\s\[{(])?"(\s|:|$)/, '\1”\2' ], # double closing
- # [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)"/, '\1”' ], # double closing
- # [ /"(?=[#{PUNCT_Q}]*[\s#{PUNCT_NOQ}])/, '”' ], # double closing
- # [ /"/, '“' ], # double opening
- [ /\b( )?\.{3}/, '\1…' ], # ellipsis
- [ /\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/, '<acronym title="\2">\1</acronym>' ], # 3+ uppercase acronym
- [ /(^|[^"][>\s])([A-Z][A-Z0-9 ]+[A-Z0-9])([^<A-Za-z0-9]|$)/, '\1<span class="caps">\2</span>\3', :no_span_caps ], # 3+ uppercase caps
- [ /(\.\s)?\s?--\s?/, '\1—' ], # em dash
- [ /\s->\s/, ' → ' ], # right arrow
- [ /\s-\s/, ' – ' ], # en dash
- [ /(\d+) ?x ?(\d+)/, '\1×\2' ], # dimension sign
- [ /\b ?[(\[]TM[\])]/i, '™' ], # trademark
- [ /\b ?[(\[]R[\])]/i, '®' ], # registered
- [ /\b ?[(\[]C[\])]/i, '©' ] # copyright
- ]
-
- H_ALGN_VALS = {
- '<' => 'left',
- '=' => 'center',
- '>' => 'right',
- '<>' => 'justify'
- }
-
- V_ALGN_VALS = {
- '^' => 'top',
- '-' => 'middle',
- '~' => 'bottom'
- }
-
- #
- # Flexible HTML escaping
- #
- def htmlesc( str, mode )
- str.gsub!( '&', '&' )
- str.gsub!( '"', '"' ) if mode != :NoQuotes
- str.gsub!( "'", ''' ) if mode == :Quotes
- str.gsub!( '<', '<')
- str.gsub!( '>', '>')
- end
-
- # Search and replace for Textile glyphs (quotes, dashes, other symbols)
- def pgl( text )
- GLYPHS.each do |re, resub, tog|
- next if tog and method( tog ).call
- text.gsub! re, resub
- end
- end
-
- # Parses Textile attribute lists and builds an HTML attribute string
- def pba( text_in, element = "" )
-
- return '' unless text_in
-
- style = []
- text = text_in.dup
- if element == 'td'
- colspan = $1 if text =~ /\\(\d+)/
- rowspan = $1 if text =~ /\/(\d+)/
- style << "vertical-align:#{ v_align( $& ) };" if text =~ A_VLGN
- end
-
- style << "#{ $1 };" if not filter_styles and
- text.sub!( /\{([^}]*)\}/, '' )
-
- lang = $1 if
- text.sub!( /\[([^)]+?)\]/, '' )
-
- cls = $1 if
- text.sub!( /\(([^()]+?)\)/, '' )
-
- style << "padding-left:#{ $1.length }em;" if
- text.sub!( /([(]+)/, '' )
-
- style << "padding-right:#{ $1.length }em;" if text.sub!( /([)]+)/, '' )
-
- style << "text-align:#{ h_align( $& ) };" if text =~ A_HLGN
-
- cls, id = $1, $2 if cls =~ /^(.*?)#(.*)$/
-
- atts = ''
- atts << " style=\"#{ style.join }\"" unless style.empty?
- atts << " class=\"#{ cls }\"" unless cls.to_s.empty?
- atts << " lang=\"#{ lang }\"" if lang
- atts << " id=\"#{ id }\"" if id
- atts << " colspan=\"#{ colspan }\"" if colspan
- atts << " rowspan=\"#{ rowspan }\"" if rowspan
-
- atts
- end
-
- TABLE_RE = /^(?:table(_?#{S}#{A}#{C})\. ?\n)?^(#{A}#{C}\.? ?\|.*?\|)(\n\n|\Z)/m
-
- # Parses a Textile table block, building HTML from the result.
- def block_textile_table( text )
- text.gsub!( TABLE_RE ) do |matches|
-
- tatts, fullrow = $~[1..2]
- tatts = pba( tatts, 'table' )
- tatts = shelve( tatts ) if tatts
- rows = []
-
- fullrow.each_line do |row|
- ratts, row = pba( $1, 'tr' ), $2 if row =~ /^(#{A}#{C}\. )(.*)/m
- cells = []
- row.split( /(\|)(?![^\[\|]*\]\])/ )[1..-2].each do |cell|
- next if cell == '|'
- ctyp = 'd'
- ctyp = 'h' if cell =~ /^_/
-
- catts = ''
- catts, cell = pba( $1, 'td' ), $2 if cell =~ /^(_?#{S}#{A}#{C}\. ?)(.*)/
-
- catts = shelve( catts ) if catts
- cells << "\t\t\t<t#{ ctyp }#{ catts }>#{ cell }</t#{ ctyp }>"
- end
- ratts = shelve( ratts ) if ratts
- rows << "\t\t<tr#{ ratts }>\n#{ cells.join( "\n" ) }\n\t\t</tr>"
- end
- "\t<table#{ tatts }>\n#{ rows.join( "\n" ) }\n\t</table>\n\n"
- end
- end
-
- LISTS_RE = /^([#*]+?#{C} .*?)$(?![^#*])/m
- LISTS_CONTENT_RE = /^([#*]+)(#{A}#{C}) (.*)$/m
-
- # Parses Textile lists and generates HTML
- def block_textile_lists( text )
- text.gsub!( LISTS_RE ) do |match|
- lines = match.split( /\n/ )
- last_line = -1
- depth = []
- lines.each_with_index do |line, line_id|
- if line =~ LISTS_CONTENT_RE
- tl,atts,content = $~[1..3]
- if depth.last
- if depth.last.length > tl.length
- (depth.length - 1).downto(0) do |i|
- break if depth[i].length == tl.length
- lines[line_id - 1] << "</li>\n\t</#{ lT( depth[i] ) }l>\n\t"
- depth.pop
- end
- end
- if depth.last and depth.last.length == tl.length
- lines[line_id - 1] << '</li>'
- end
- end
- unless depth.last == tl
- depth << tl
- atts = pba( atts )
- atts = shelve( atts ) if atts
- lines[line_id] = "\t<#{ lT(tl) }l#{ atts }>\n\t<li>#{ content }"
- else
- lines[line_id] = "\t\t<li>#{ content }"
- end
- last_line = line_id
-
- else
- last_line = line_id
- end
- if line_id - last_line > 1 or line_id == lines.length - 1
- depth.delete_if do |v|
- lines[last_line] << "</li>\n\t</#{ lT( v ) }l>"
- end
- end
- end
- lines.join( "\n" )
- end
- end
-
- QUOTES_RE = /(^>+([^\n]*?)\n?)+/m
- QUOTES_CONTENT_RE = /^([> ]+)(.*)$/m
-
- def block_textile_quotes( text )
- text.gsub!( QUOTES_RE ) do |match|
- lines = match.split( /\n/ )
- quotes = ''
- indent = 0
- lines.each do |line|
- line =~ QUOTES_CONTENT_RE
- bq,content = $1, $2
- l = bq.count('>')
- if l != indent
- quotes << ("\n\n" + (l>indent ? '<blockquote>' * (l-indent) : '</blockquote>' * (indent-l)) + "\n\n")
- indent = l
- end
- quotes << (content + "\n")
- end
- quotes << ("\n" + '</blockquote>' * indent + "\n\n")
- quotes
- end
- end
-
- CODE_RE = /(\W)
- @
- (?:\|(\w+?)\|)?
- (.+?)
- @
- (?=\W)/x
-
- def inline_textile_code( text )
- text.gsub!( CODE_RE ) do |m|
- before,lang,code,after = $~[1..4]
- lang = " lang=\"#{ lang }\"" if lang
- rip_offtags( "#{ before }<code#{ lang }>#{ code }</code>#{ after }" )
- end
- end
-
- def lT( text )
- text =~ /\#$/ ? 'o' : 'u'
- end
-
- def hard_break( text )
- text.gsub!( /(.)\n(?!\Z| *([#*=]+(\s|$)|[{|]))/, "\\1<br />" ) if hard_breaks
- end
-
- BLOCKS_GROUP_RE = /\n{2,}(?! )/m
-
- def blocks( text, deep_code = false )
- text.replace( text.split( BLOCKS_GROUP_RE ).collect do |blk|
- plain = blk !~ /\A[#*> ]/
-
- # skip blocks that are complex HTML
- if blk =~ /^<\/?(\w+).*>/ and not SIMPLE_HTML_TAGS.include? $1
- blk
- else
- # search for indentation levels
- blk.strip!
- if blk.empty?
- blk
- else
- code_blk = nil
- blk.gsub!( /((?:\n(?:\n^ +[^\n]*)+)+)/m ) do |iblk|
- flush_left iblk
- blocks iblk, plain
- iblk.gsub( /^(\S)/, "\t\\1" )
- if plain
- code_blk = iblk; ""
- else
- iblk
- end
- end
-
- block_applied = 0
- @rules.each do |rule_name|
- block_applied += 1 if ( rule_name.to_s.match /^block_/ and method( rule_name ).call( blk ) )
- end
- if block_applied.zero?
- if deep_code
- blk = "\t<pre><code>#{ blk }</code></pre>"
- else
- blk = "\t<p>#{ blk }</p>"
- end
- end
- # hard_break blk
- blk + "\n#{ code_blk }"
- end
- end
-
- end.join( "\n\n" ) )
- end
-
- def textile_bq( tag, atts, cite, content )
- cite, cite_title = check_refs( cite )
- cite = " cite=\"#{ cite }\"" if cite
- atts = shelve( atts ) if atts
- "\t<blockquote#{ cite }>\n\t\t<p#{ atts }>#{ content }</p>\n\t</blockquote>"
- end
-
- def textile_p( tag, atts, cite, content )
- atts = shelve( atts ) if atts
- "\t<#{ tag }#{ atts }>#{ content }</#{ tag }>"
- end
-
- alias textile_h1 textile_p
- alias textile_h2 textile_p
- alias textile_h3 textile_p
- alias textile_h4 textile_p
- alias textile_h5 textile_p
- alias textile_h6 textile_p
-
- def textile_fn_( tag, num, atts, cite, content )
- atts << " id=\"fn#{ num }\""
- content = "<sup>#{ num }</sup> #{ content }"
- atts = shelve( atts ) if atts
- "\t<p#{ atts }>#{ content }</p>"
- end
-
- BLOCK_RE = /^(([a-z]+)(\d*))(#{A}#{C})\.(?::(\S+))? (.*)$/m
-
- def block_textile_prefix( text )
- if text =~ BLOCK_RE
- tag,tagpre,num,atts,cite,content = $~[1..6]
- atts = pba( atts )
-
- # pass to prefix handler
- if respond_to? "textile_#{ tag }", true
- text.gsub!( $&, method( "textile_#{ tag }" ).call( tag, atts, cite, content ) )
- elsif respond_to? "textile_#{ tagpre }_", true
- text.gsub!( $&, method( "textile_#{ tagpre }_" ).call( tagpre, num, atts, cite, content ) )
- end
- end
- end
-
- SETEXT_RE = /\A(.+?)\n([=-])[=-]* *$/m
- def block_markdown_setext( text )
- if text =~ SETEXT_RE
- tag = if $2 == "="; "h1"; else; "h2"; end
- blk, cont = "<#{ tag }>#{ $1 }</#{ tag }>", $'
- blocks cont
- text.replace( blk + cont )
- end
- end
-
- ATX_RE = /\A(\#{1,6}) # $1 = string of #'s
- [ ]*
- (.+?) # $2 = Header text
- [ ]*
- \#* # optional closing #'s (not counted)
- $/x
- def block_markdown_atx( text )
- if text =~ ATX_RE
- tag = "h#{ $1.length }"
- blk, cont = "<#{ tag }>#{ $2 }</#{ tag }>\n\n", $'
- blocks cont
- text.replace( blk + cont )
- end
- end
-
- MARKDOWN_BQ_RE = /\A(^ *> ?.+$(.+\n)*\n*)+/m
-
- def block_markdown_bq( text )
- text.gsub!( MARKDOWN_BQ_RE ) do |blk|
- blk.gsub!( /^ *> ?/, '' )
- flush_left blk
- blocks blk
- blk.gsub!( /^(\S)/, "\t\\1" )
- "<blockquote>\n#{ blk }\n</blockquote>\n\n"
- end
- end
-
- MARKDOWN_RULE_RE = /^(#{
- ['*', '-', '_'].collect { |ch| ' ?(' + Regexp::quote( ch ) + ' ?){3,}' }.join( '|' )
- })$/
-
- def block_markdown_rule( text )
- text.gsub!( MARKDOWN_RULE_RE ) do |blk|
- "<hr />"
- end
- end
-
- # XXX TODO XXX
- def block_markdown_lists( text )
- end
-
- def inline_textile_span( text )
- QTAGS.each do |qtag_rc, ht, qtag_re, rtype|
- text.gsub!( qtag_re ) do |m|
-
- case rtype
- when :limit
- sta,qtag,atts,cite,content = $~[1..5]
- else
- qtag,atts,cite,content = $~[1..4]
- sta = ''
- end
- atts = pba( atts )
- atts << " cite=\"#{ cite }\"" if cite
- atts = shelve( atts ) if atts
-
- "#{ sta }<#{ ht }#{ atts }>#{ content }</#{ ht }>"
-
- end
- end
- end
-
- LINK_RE = /
- ([\s\[{(]|[#{PUNCT}])? # $pre
- " # start
- (#{C}) # $atts
- ([^"\n]+?) # $text
- \s?
- (?:\(([^)]+?)\)(?="))? # $title
- ":
- ([\w\/]\S+?) # $url
- (\/)? # $slash
- ([^\w\/;]*?) # $post
- (?=<|\s|$)
- /x
-
- def inline_textile_link( text )
- text.gsub!( LINK_RE ) do |m|
- pre,atts,text,title,url,slash,post = $~[1..7]
-
- url, url_title = check_refs( url )
- title ||= url_title
-
- atts = pba( atts )
- atts = " href=\"#{ url }#{ slash }\"#{ atts }"
- atts << " title=\"#{ title }\"" if title
- atts = shelve( atts ) if atts
-
- external = (url =~ /^https?:\/\//) ? ' class="external"' : ''
-
- "#{ pre }<a#{ atts }#{ external }>#{ text }</a>#{ post }"
- end
- end
-
- MARKDOWN_REFLINK_RE = /
- \[([^\[\]]+)\] # $text
- [ ]? # opt. space
- (?:\n[ ]*)? # one optional newline followed by spaces
- \[(.*?)\] # $id
- /x
-
- def inline_markdown_reflink( text )
- text.gsub!( MARKDOWN_REFLINK_RE ) do |m|
- text, id = $~[1..2]
-
- if id.empty?
- url, title = check_refs( text )
- else
- url, title = check_refs( id )
- end
-
- atts = " href=\"#{ url }\""
- atts << " title=\"#{ title }\"" if title
- atts = shelve( atts )
-
- "<a#{ atts }>#{ text }</a>"
- end
- end
-
- MARKDOWN_LINK_RE = /
- \[([^\[\]]+)\] # $text
- \( # open paren
- [ \t]* # opt space
- <?(.+?)>? # $href
- [ \t]* # opt space
- (?: # whole title
- (['"]) # $quote
- (.*?) # $title
- \3 # matching quote
- )? # title is optional
- \)
- /x
-
- def inline_markdown_link( text )
- text.gsub!( MARKDOWN_LINK_RE ) do |m|
- text, url, quote, title = $~[1..4]
-
- atts = " href=\"#{ url }\""
- atts << " title=\"#{ title }\"" if title
- atts = shelve( atts )
-
- "<a#{ atts }>#{ text }</a>"
- end
- end
-
- TEXTILE_REFS_RE = /(^ *)\[([^\[\n]+?)\](#{HYPERLINK})(?=\s|$)/
- MARKDOWN_REFS_RE = /(^ *)\[([^\n]+?)\]:\s+<?(#{HYPERLINK})>?(?:\s+"((?:[^"]|\\")+)")?(?=\s|$)/m
-
- def refs( text )
- @rules.each do |rule_name|
- method( rule_name ).call( text ) if rule_name.to_s.match /^refs_/
- end
- end
-
- def refs_textile( text )
- text.gsub!( TEXTILE_REFS_RE ) do |m|
- flag, url = $~[2..3]
- @urlrefs[flag.downcase] = [url, nil]
- nil
- end
- end
-
- def refs_markdown( text )
- text.gsub!( MARKDOWN_REFS_RE ) do |m|
- flag, url = $~[2..3]
- title = $~[6]
- @urlrefs[flag.downcase] = [url, title]
- nil
- end
- end
-
- def check_refs( text )
- ret = @urlrefs[text.downcase] if text
- ret || [text, nil]
- end
-
- IMAGE_RE = /
- (<p>|.|^) # start of line?
- \! # opening
- (\<|\=|\>)? # optional alignment atts
- (#{C}) # optional style,class atts
- (?:\. )? # optional dot-space
- ([^\s(!]+?) # presume this is the src
- \s? # optional space
- (?:\(((?:[^\(\)]|\([^\)]+\))+?)\))? # optional title
- \! # closing
- (?::#{ HYPERLINK })? # optional href
- /x
-
- def inline_textile_image( text )
- text.gsub!( IMAGE_RE ) do |m|
- stln,algn,atts,url,title,href,href_a1,href_a2 = $~[1..8]
- atts = pba( atts )
- atts = " src=\"#{ url }\"#{ atts }"
- atts << " title=\"#{ title }\"" if title
- atts << " alt=\"#{ title }\""
- # size = @getimagesize($url);
- # if($size) $atts.= " $size[3]";
-
- href, alt_title = check_refs( href ) if href
- url, url_title = check_refs( url )
-
- out = ''
- out << "<a#{ shelve( " href=\"#{ href }\"" ) }>" if href
- out << "<img#{ shelve( atts ) } />"
- out << "</a>#{ href_a1 }#{ href_a2 }" if href
-
- if algn
- algn = h_align( algn )
- if stln == "<p>"
- out = "<p style=\"float:#{ algn }\">#{ out }"
- else
- out = "#{ stln }<div style=\"float:#{ algn }\">#{ out }</div>"
- end
- else
- out = stln + out
- end
-
- out
- end
- end
-
- def shelve( val )
- @shelf << val
- " :redsh##{ @shelf.length }:"
- end
-
- def retrieve( text )
- @shelf.each_with_index do |r, i|
- text.gsub!( " :redsh##{ i + 1 }:", r )
- end
- end
-
- def incoming_entities( text )
- ## turn any incoming ampersands into a dummy character for now.
- ## This uses a negative lookahead for alphanumerics followed by a semicolon,
- ## implying an incoming html entity, to be skipped
-
- text.gsub!( /&(?![#a-z0-9]+;)/i, "x%x%" )
- end
-
- def no_textile( text )
- text.gsub!( /(^|\s)==([^=]+.*?)==(\s|$)?/,
- '\1<notextile>\2</notextile>\3' )
- text.gsub!( /^ *==([^=]+.*?)==/m,
- '\1<notextile>\2</notextile>\3' )
- end
-
- def clean_white_space( text )
- # normalize line breaks
- text.gsub!( /\r\n/, "\n" )
- text.gsub!( /\r/, "\n" )
- text.gsub!( /\t/, ' ' )
- text.gsub!( /^ +$/, '' )
- text.gsub!( /\n{3,}/, "\n\n" )
- text.gsub!( /"$/, "\" " )
-
- # if entire document is indented, flush
- # to the left side
- flush_left text
- end
-
- def flush_left( text )
- indt = 0
- if text =~ /^ /
- while text !~ /^ {#{indt}}\S/
- indt += 1
- end unless text.empty?
- if indt.nonzero?
- text.gsub!( /^ {#{indt}}/, '' )
- end
- end
- end
-
- def footnote_ref( text )
- text.gsub!( /\b\[([0-9]+?)\](\s)?/,
- '<sup><a href="#fn\1">\1</a></sup>\2' )
- end
-
- OFFTAGS = /(code|pre|kbd|notextile)/
- OFFTAG_MATCH = /(?:(<\/#{ OFFTAGS }>)|(<#{ OFFTAGS }[^>]*>))(.*?)(?=<\/?#{ OFFTAGS }|\Z)/mi
- OFFTAG_OPEN = /<#{ OFFTAGS }/
- OFFTAG_CLOSE = /<\/?#{ OFFTAGS }/
- HASTAG_MATCH = /(<\/?\w[^\n]*?>)/m
- ALLTAG_MATCH = /(<\/?\w[^\n]*?>)|.*?(?=<\/?\w[^\n]*?>|$)/m
-
- def glyphs_textile( text, level = 0 )
- if text !~ HASTAG_MATCH
- pgl text
- footnote_ref text
- else
- codepre = 0
- text.gsub!( ALLTAG_MATCH ) do |line|
- ## matches are off if we're between <code>, <pre> etc.
- if $1
- if line =~ OFFTAG_OPEN
- codepre += 1
- elsif line =~ OFFTAG_CLOSE
- codepre -= 1
- codepre = 0 if codepre < 0
- end
- elsif codepre.zero?
- glyphs_textile( line, level + 1 )
- else
- htmlesc( line, :NoQuotes )
- end
- # p [level, codepre, line]
-
- line
- end
- end
- end
-
- def rip_offtags( text )
- if text =~ /<.*>/
- ## strip and encode <pre> content
- codepre, used_offtags = 0, {}
- text.gsub!( OFFTAG_MATCH ) do |line|
- if $3
- offtag, aftertag = $4, $5
- codepre += 1
- used_offtags[offtag] = true
- if codepre - used_offtags.length > 0
- htmlesc( line, :NoQuotes ) unless used_offtags['notextile']
- @pre_list.last << line
- line = ""
- else
- htmlesc( aftertag, :NoQuotes ) if aftertag and not used_offtags['notextile']
- line = "<redpre##{ @pre_list.length }>"
- @pre_list << "#{ $3 }#{ aftertag }"
- end
- elsif $1 and codepre > 0
- if codepre - used_offtags.length > 0
- htmlesc( line, :NoQuotes ) unless used_offtags['notextile']
- @pre_list.last << line
- line = ""
- end
- codepre -= 1 unless codepre.zero?
- used_offtags = {} if codepre.zero?
- end
- line
- end
- end
- text
- end
-
- def smooth_offtags( text )
- unless @pre_list.empty?
- ## replace <pre> content
- text.gsub!( /<redpre#(\d+)>/ ) { @pre_list[$1.to_i] }
- end
- end
-
- def inline( text )
- [/^inline_/, /^glyphs_/].each do |meth_re|
- @rules.each do |rule_name|
- method( rule_name ).call( text ) if rule_name.to_s.match( meth_re )
- end
- end
- end
-
- def h_align( text )
- H_ALGN_VALS[text]
- end
-
- def v_align( text )
- V_ALGN_VALS[text]
- end
-
- def textile_popup_help( name, windowW, windowH )
- ' <a target="_blank" href="http://hobix.com/textile/#' + helpvar + '" onclick="window.open(this.href, \'popupwindow\', \'width=' + windowW + ',height=' + windowH + ',scrollbars,resizable\'); return false;">' + name + '</a><br />'
- end
-
- # HTML cleansing stuff
- BASIC_TAGS = {
- 'a' => ['href', 'title'],
- 'img' => ['src', 'alt', 'title'],
- 'br' => [],
- 'i' => nil,
- 'u' => nil,
- 'b' => nil,
- 'pre' => nil,
- 'kbd' => nil,
- 'code' => ['lang'],
- 'cite' => nil,
- 'strong' => nil,
- 'em' => nil,
- 'ins' => nil,
- 'sup' => nil,
- 'sub' => nil,
- 'del' => nil,
- 'table' => nil,
- 'tr' => nil,
- 'td' => ['colspan', 'rowspan'],
- 'th' => nil,
- 'ol' => nil,
- 'ul' => nil,
- 'li' => nil,
- 'p' => nil,
- 'h1' => nil,
- 'h2' => nil,
- 'h3' => nil,
- 'h4' => nil,
- 'h5' => nil,
- 'h6' => nil,
- 'blockquote' => ['cite']
- }
-
- def clean_html( text, tags = BASIC_TAGS )
- text.gsub!( /<!\[CDATA\[/, '' )
- text.gsub!( /<(\/*)(\w+)([^>]*)>/ ) do
- raw = $~
- tag = raw[2].downcase
- if tags.has_key? tag
- pcs = [tag]
- tags[tag].each do |prop|
- ['"', "'", ''].each do |q|
- q2 = ( q != '' ? q : '\s' )
- if raw[3] =~ /#{prop}\s*=\s*#{q}([^#{q2}]+)#{q}/i
- attrv = $1
- next if prop == 'src' and attrv =~ %r{^(?!http)\w+:}
- pcs << "#{prop}=\"#{$1.gsub('"', '\\"')}\""
- break
- end
- end
- end if tags[tag]
- "<#{raw[1]}#{pcs.join " "}>"
- else
- " "
- end
- end
- end
-
- ALLOWED_TAGS = %w(redpre pre code notextile)
-
- def escape_html_tags(text)
- text.gsub!(%r{<(\/?([!\w]+)[^<>\n]*)(>?)}) {|m| ALLOWED_TAGS.include?($2) ? "<#{$1}#{$3}" : "<#{$1}#{'>' unless $3.blank?}" }
- end
-end
-
--- /dev/null
+# vim:ts=4:sw=4:
+# = RedCloth - Textile and Markdown Hybrid for Ruby
+#
+# Homepage:: http://whytheluckystiff.net/ruby/redcloth/
+# Author:: why the lucky stiff (http://whytheluckystiff.net/)
+# Copyright:: (cc) 2004 why the lucky stiff (and his puppet organizations.)
+# License:: BSD
+#
+# (see http://hobix.com/textile/ for a Textile Reference.)
+#
+# Based on (and also inspired by) both:
+#
+# PyTextile: http://diveintomark.org/projects/textile/textile.py.txt
+# Textism for PHP: http://www.textism.com/tools/textile/
+#
+#
+
+# = RedCloth
+#
+# RedCloth is a Ruby library for converting Textile and/or Markdown
+# into HTML. You can use either format, intermingled or separately.
+# You can also extend RedCloth to honor your own custom text stylings.
+#
+# RedCloth users are encouraged to use Textile if they are generating
+# HTML and to use Markdown if others will be viewing the plain text.
+#
+# == What is Textile?
+#
+# Textile is a simple formatting style for text
+# documents, loosely based on some HTML conventions.
+#
+# == Sample Textile Text
+#
+# h2. This is a title
+#
+# h3. This is a subhead
+#
+# This is a bit of paragraph.
+#
+# bq. This is a blockquote.
+#
+# = Writing Textile
+#
+# A Textile document consists of paragraphs. Paragraphs
+# can be specially formatted by adding a small instruction
+# to the beginning of the paragraph.
+#
+# h[n]. Header of size [n].
+# bq. Blockquote.
+# # Numeric list.
+# * Bulleted list.
+#
+# == Quick Phrase Modifiers
+#
+# Quick phrase modifiers are also included, to allow formatting
+# of small portions of text within a paragraph.
+#
+# \_emphasis\_
+# \_\_italicized\_\_
+# \*strong\*
+# \*\*bold\*\*
+# ??citation??
+# -deleted text-
+# +inserted text+
+# ^superscript^
+# ~subscript~
+# @code@
+# %(classname)span%
+#
+# ==notextile== (leave text alone)
+#
+# == Links
+#
+# To make a hypertext link, put the link text in "quotation
+# marks" followed immediately by a colon and the URL of the link.
+#
+# Optional: text in (parentheses) following the link text,
+# but before the closing quotation mark, will become a Title
+# attribute for the link, visible as a tool tip when a cursor is above it.
+#
+# Example:
+#
+# "This is a link (This is a title) ":http://www.textism.com
+#
+# Will become:
+#
+# <a href="http://www.textism.com" title="This is a title">This is a link</a>
+#
+# == Images
+#
+# To insert an image, put the URL for the image inside exclamation marks.
+#
+# Optional: text that immediately follows the URL in (parentheses) will
+# be used as the Alt text for the image. Images on the web should always
+# have descriptive Alt text for the benefit of readers using non-graphical
+# browsers.
+#
+# Optional: place a colon followed by a URL immediately after the
+# closing ! to make the image into a link.
+#
+# Example:
+#
+# !http://www.textism.com/common/textist.gif(Textist)!
+#
+# Will become:
+#
+# <img src="http://www.textism.com/common/textist.gif" alt="Textist" />
+#
+# With a link:
+#
+# !/common/textist.gif(Textist)!:http://textism.com
+#
+# Will become:
+#
+# <a href="http://textism.com"><img src="/common/textist.gif" alt="Textist" /></a>
+#
+# == Defining Acronyms
+#
+# HTML allows authors to define acronyms via the tag. The definition appears as a
+# tool tip when a cursor hovers over the acronym. A crucial aid to clear writing,
+# this should be used at least once for each acronym in documents where they appear.
+#
+# To quickly define an acronym in Textile, place the full text in (parentheses)
+# immediately following the acronym.
+#
+# Example:
+#
+# ACLU(American Civil Liberties Union)
+#
+# Will become:
+#
+# <acronym title="American Civil Liberties Union">ACLU</acronym>
+#
+# == Adding Tables
+#
+# In Textile, simple tables can be added by seperating each column by
+# a pipe.
+#
+# |a|simple|table|row|
+# |And|Another|table|row|
+#
+# Attributes are defined by style definitions in parentheses.
+#
+# table(border:1px solid black).
+# (background:#ddd;color:red). |{}| | | |
+#
+# == Using RedCloth
+#
+# RedCloth is simply an extension of the String class, which can handle
+# Textile formatting. Use it like a String and output HTML with its
+# RedCloth#to_html method.
+#
+# doc = RedCloth.new "
+#
+# h2. Test document
+#
+# Just a simple test."
+#
+# puts doc.to_html
+#
+# By default, RedCloth uses both Textile and Markdown formatting, with
+# Textile formatting taking precedence. If you want to turn off Markdown
+# formatting, to boost speed and limit the processor:
+#
+# class RedCloth::Textile.new( str )
+
+class RedCloth3 < String
+
+ VERSION = '3.0.4'
+ DEFAULT_RULES = [:textile, :markdown]
+
+ #
+ # Two accessor for setting security restrictions.
+ #
+ # This is a nice thing if you're using RedCloth for
+ # formatting in public places (e.g. Wikis) where you
+ # don't want users to abuse HTML for bad things.
+ #
+ # If +:filter_html+ is set, HTML which wasn't
+ # created by the Textile processor will be escaped.
+ #
+ # If +:filter_styles+ is set, it will also disable
+ # the style markup specifier. ('{color: red}')
+ #
+ attr_accessor :filter_html, :filter_styles
+
+ #
+ # Accessor for toggling hard breaks.
+ #
+ # If +:hard_breaks+ is set, single newlines will
+ # be converted to HTML break tags. This is the
+ # default behavior for traditional RedCloth.
+ #
+ attr_accessor :hard_breaks
+
+ # Accessor for toggling lite mode.
+ #
+ # In lite mode, block-level rules are ignored. This means
+ # that tables, paragraphs, lists, and such aren't available.
+ # Only the inline markup for bold, italics, entities and so on.
+ #
+ # r = RedCloth.new( "And then? She *fell*!", [:lite_mode] )
+ # r.to_html
+ # #=> "And then? She <strong>fell</strong>!"
+ #
+ attr_accessor :lite_mode
+
+ #
+ # Accessor for toggling span caps.
+ #
+ # Textile places `span' tags around capitalized
+ # words by default, but this wreaks havoc on Wikis.
+ # If +:no_span_caps+ is set, this will be
+ # suppressed.
+ #
+ attr_accessor :no_span_caps
+
+ #
+ # Establishes the markup predence. Available rules include:
+ #
+ # == Textile Rules
+ #
+ # The following textile rules can be set individually. Or add the complete
+ # set of rules with the single :textile rule, which supplies the rule set in
+ # the following precedence:
+ #
+ # refs_textile:: Textile references (i.e. [hobix]http://hobix.com/)
+ # block_textile_table:: Textile table block structures
+ # block_textile_lists:: Textile list structures
+ # block_textile_prefix:: Textile blocks with prefixes (i.e. bq., h2., etc.)
+ # inline_textile_image:: Textile inline images
+ # inline_textile_link:: Textile inline links
+ # inline_textile_span:: Textile inline spans
+ # glyphs_textile:: Textile entities (such as em-dashes and smart quotes)
+ #
+ # == Markdown
+ #
+ # refs_markdown:: Markdown references (for example: [hobix]: http://hobix.com/)
+ # block_markdown_setext:: Markdown setext headers
+ # block_markdown_atx:: Markdown atx headers
+ # block_markdown_rule:: Markdown horizontal rules
+ # block_markdown_bq:: Markdown blockquotes
+ # block_markdown_lists:: Markdown lists
+ # inline_markdown_link:: Markdown links
+ attr_accessor :rules
+
+ # Returns a new RedCloth object, based on _string_ and
+ # enforcing all the included _restrictions_.
+ #
+ # r = RedCloth.new( "h1. A <b>bold</b> man", [:filter_html] )
+ # r.to_html
+ # #=>"<h1>A <b>bold</b> man</h1>"
+ #
+ def initialize( string, restrictions = [] )
+ restrictions.each { |r| method( "#{ r }=" ).call( true ) }
+ super( string )
+ end
+
+ #
+ # Generates HTML from the Textile contents.
+ #
+ # r = RedCloth.new( "And then? She *fell*!" )
+ # r.to_html( true )
+ # #=>"And then? She <strong>fell</strong>!"
+ #
+ def to_html( *rules )
+ rules = DEFAULT_RULES if rules.empty?
+ # make our working copy
+ text = self.dup
+
+ @urlrefs = {}
+ @shelf = []
+ textile_rules = [:refs_textile, :block_textile_table, :block_textile_lists,
+ :block_textile_prefix, :inline_textile_image, :inline_textile_link,
+ :inline_textile_code, :inline_textile_span]
+ markdown_rules = [:refs_markdown, :block_markdown_setext, :block_markdown_atx, :block_markdown_rule,
+ :block_markdown_bq, :block_markdown_lists,
+ :inline_markdown_reflink, :inline_markdown_link]
+ @rules = rules.collect do |rule|
+ case rule
+ when :markdown
+ markdown_rules
+ when :textile
+ textile_rules
+ else
+ rule
+ end
+ end.flatten
+
+ # standard clean up
+ incoming_entities text
+ clean_white_space text
+
+ # start processor
+ @pre_list = []
+ rip_offtags text
+ no_textile text
+ escape_html_tags text
+ hard_break text
+ unless @lite_mode
+ refs text
+ # need to do this before text is split by #blocks
+ block_textile_quotes text
+ blocks text
+ end
+ inline text
+ smooth_offtags text
+
+ retrieve text
+
+ text.gsub!( /<\/?notextile>/, '' )
+ text.gsub!( /x%x%/, '&' )
+ clean_html text if filter_html
+ text.strip!
+ text
+
+ end
+
+ #######
+ private
+ #######
+ #
+ # Mapping of 8-bit ASCII codes to HTML numerical entity equivalents.
+ # (from PyTextile)
+ #
+ TEXTILE_TAGS =
+
+ [[128, 8364], [129, 0], [130, 8218], [131, 402], [132, 8222], [133, 8230],
+ [134, 8224], [135, 8225], [136, 710], [137, 8240], [138, 352], [139, 8249],
+ [140, 338], [141, 0], [142, 0], [143, 0], [144, 0], [145, 8216], [146, 8217],
+ [147, 8220], [148, 8221], [149, 8226], [150, 8211], [151, 8212], [152, 732],
+ [153, 8482], [154, 353], [155, 8250], [156, 339], [157, 0], [158, 0], [159, 376]].
+
+ collect! do |a, b|
+ [a.chr, ( b.zero? and "" or "&#{ b };" )]
+ end
+
+ #
+ # Regular expressions to convert to HTML.
+ #
+ A_HLGN = /(?:(?:<>|<|>|\=|[()]+)+)/
+ A_VLGN = /[\-^~]/
+ C_CLAS = '(?:\([^)]+\))'
+ C_LNGE = '(?:\[[^\]]+\])'
+ C_STYL = '(?:\{[^}]+\})'
+ S_CSPN = '(?:\\\\\d+)'
+ S_RSPN = '(?:/\d+)'
+ A = "(?:#{A_HLGN}?#{A_VLGN}?|#{A_VLGN}?#{A_HLGN}?)"
+ S = "(?:#{S_CSPN}?#{S_RSPN}|#{S_RSPN}?#{S_CSPN}?)"
+ C = "(?:#{C_CLAS}?#{C_STYL}?#{C_LNGE}?|#{C_STYL}?#{C_LNGE}?#{C_CLAS}?|#{C_LNGE}?#{C_STYL}?#{C_CLAS}?)"
+ # PUNCT = Regexp::quote( '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' )
+ PUNCT = Regexp::quote( '!"#$%&\'*+,-./:;=?@\\^_`|~' )
+ PUNCT_NOQ = Regexp::quote( '!"#$&\',./:;=?@\\`|' )
+ PUNCT_Q = Regexp::quote( '*-_+^~%' )
+ HYPERLINK = '(\S+?)([^\w\s/;=\?]*?)(?=\s|<|$)'
+
+ # Text markup tags, don't conflict with block tags
+ SIMPLE_HTML_TAGS = [
+ 'tt', 'b', 'i', 'big', 'small', 'em', 'strong', 'dfn', 'code',
+ 'samp', 'kbd', 'var', 'cite', 'abbr', 'acronym', 'a', 'img', 'br',
+ 'br', 'map', 'q', 'sub', 'sup', 'span', 'bdo'
+ ]
+
+ QTAGS = [
+ ['**', 'b', :limit],
+ ['*', 'strong', :limit],
+ ['??', 'cite', :limit],
+ ['-', 'del', :limit],
+ ['__', 'i', :limit],
+ ['_', 'em', :limit],
+ ['%', 'span', :limit],
+ ['+', 'ins', :limit],
+ ['^', 'sup', :limit],
+ ['~', 'sub', :limit]
+ ]
+ QTAGS.collect! do |rc, ht, rtype|
+ rcq = Regexp::quote rc
+ re =
+ case rtype
+ when :limit
+ /(^|[>\s\(])
+ (#{rcq})
+ (#{C})
+ (?::(\S+?))?
+ ([^\s\-].*?[^\s\-]|\w)
+ #{rcq}
+ (?=[[:punct:]]|\s|\)|$)/x
+ else
+ /(#{rcq})
+ (#{C})
+ (?::(\S+))?
+ ([^\s\-].*?[^\s\-]|\w)
+ #{rcq}/xm
+ end
+ [rc, ht, re, rtype]
+ end
+
+ # Elements to handle
+ GLYPHS = [
+ # [ /([^\s\[{(>])?\'([dmst]\b|ll\b|ve\b|\s|:|$)/, '\1’\2' ], # single closing
+ # [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)\'/, '\1’' ], # single closing
+ # [ /\'(?=[#{PUNCT_Q}]*(s\b|[\s#{PUNCT_NOQ}]))/, '’' ], # single closing
+ # [ /\'/, '‘' ], # single opening
+ [ /</, '<' ], # less-than
+ [ />/, '>' ], # greater-than
+ # [ /([^\s\[{(])?"(\s|:|$)/, '\1”\2' ], # double closing
+ # [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)"/, '\1”' ], # double closing
+ # [ /"(?=[#{PUNCT_Q}]*[\s#{PUNCT_NOQ}])/, '”' ], # double closing
+ # [ /"/, '“' ], # double opening
+ [ /\b( )?\.{3}/, '\1…' ], # ellipsis
+ [ /\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/, '<acronym title="\2">\1</acronym>' ], # 3+ uppercase acronym
+ [ /(^|[^"][>\s])([A-Z][A-Z0-9 ]+[A-Z0-9])([^<A-Za-z0-9]|$)/, '\1<span class="caps">\2</span>\3', :no_span_caps ], # 3+ uppercase caps
+ [ /(\.\s)?\s?--\s?/, '\1—' ], # em dash
+ [ /\s->\s/, ' → ' ], # right arrow
+ [ /\s-\s/, ' – ' ], # en dash
+ [ /(\d+) ?x ?(\d+)/, '\1×\2' ], # dimension sign
+ [ /\b ?[(\[]TM[\])]/i, '™' ], # trademark
+ [ /\b ?[(\[]R[\])]/i, '®' ], # registered
+ [ /\b ?[(\[]C[\])]/i, '©' ] # copyright
+ ]
+
+ H_ALGN_VALS = {
+ '<' => 'left',
+ '=' => 'center',
+ '>' => 'right',
+ '<>' => 'justify'
+ }
+
+ V_ALGN_VALS = {
+ '^' => 'top',
+ '-' => 'middle',
+ '~' => 'bottom'
+ }
+
+ #
+ # Flexible HTML escaping
+ #
+ def htmlesc( str, mode )
+ str.gsub!( '&', '&' )
+ str.gsub!( '"', '"' ) if mode != :NoQuotes
+ str.gsub!( "'", ''' ) if mode == :Quotes
+ str.gsub!( '<', '<')
+ str.gsub!( '>', '>')
+ end
+
+ # Search and replace for Textile glyphs (quotes, dashes, other symbols)
+ def pgl( text )
+ GLYPHS.each do |re, resub, tog|
+ next if tog and method( tog ).call
+ text.gsub! re, resub
+ end
+ end
+
+ # Parses Textile attribute lists and builds an HTML attribute string
+ def pba( text_in, element = "" )
+
+ return '' unless text_in
+
+ style = []
+ text = text_in.dup
+ if element == 'td'
+ colspan = $1 if text =~ /\\(\d+)/
+ rowspan = $1 if text =~ /\/(\d+)/
+ style << "vertical-align:#{ v_align( $& ) };" if text =~ A_VLGN
+ end
+
+ style << "#{ $1 };" if not filter_styles and
+ text.sub!( /\{([^}]*)\}/, '' )
+
+ lang = $1 if
+ text.sub!( /\[([^)]+?)\]/, '' )
+
+ cls = $1 if
+ text.sub!( /\(([^()]+?)\)/, '' )
+
+ style << "padding-left:#{ $1.length }em;" if
+ text.sub!( /([(]+)/, '' )
+
+ style << "padding-right:#{ $1.length }em;" if text.sub!( /([)]+)/, '' )
+
+ style << "text-align:#{ h_align( $& ) };" if text =~ A_HLGN
+
+ cls, id = $1, $2 if cls =~ /^(.*?)#(.*)$/
+
+ atts = ''
+ atts << " style=\"#{ style.join }\"" unless style.empty?
+ atts << " class=\"#{ cls }\"" unless cls.to_s.empty?
+ atts << " lang=\"#{ lang }\"" if lang
+ atts << " id=\"#{ id }\"" if id
+ atts << " colspan=\"#{ colspan }\"" if colspan
+ atts << " rowspan=\"#{ rowspan }\"" if rowspan
+
+ atts
+ end
+
+ TABLE_RE = /^(?:table(_?#{S}#{A}#{C})\. ?\n)?^(#{A}#{C}\.? ?\|.*?\|)(\n\n|\Z)/m
+
+ # Parses a Textile table block, building HTML from the result.
+ def block_textile_table( text )
+ text.gsub!( TABLE_RE ) do |matches|
+
+ tatts, fullrow = $~[1..2]
+ tatts = pba( tatts, 'table' )
+ tatts = shelve( tatts ) if tatts
+ rows = []
+
+ fullrow.each_line do |row|
+ ratts, row = pba( $1, 'tr' ), $2 if row =~ /^(#{A}#{C}\. )(.*)/m
+ cells = []
+ row.split( /(\|)(?![^\[\|]*\]\])/ )[1..-2].each do |cell|
+ next if cell == '|'
+ ctyp = 'd'
+ ctyp = 'h' if cell =~ /^_/
+
+ catts = ''
+ catts, cell = pba( $1, 'td' ), $2 if cell =~ /^(_?#{S}#{A}#{C}\. ?)(.*)/
+
+ catts = shelve( catts ) if catts
+ cells << "\t\t\t<t#{ ctyp }#{ catts }>#{ cell }</t#{ ctyp }>"
+ end
+ ratts = shelve( ratts ) if ratts
+ rows << "\t\t<tr#{ ratts }>\n#{ cells.join( "\n" ) }\n\t\t</tr>"
+ end
+ "\t<table#{ tatts }>\n#{ rows.join( "\n" ) }\n\t</table>\n\n"
+ end
+ end
+
+ LISTS_RE = /^([#*]+?#{C} .*?)$(?![^#*])/m
+ LISTS_CONTENT_RE = /^([#*]+)(#{A}#{C}) (.*)$/m
+
+ # Parses Textile lists and generates HTML
+ def block_textile_lists( text )
+ text.gsub!( LISTS_RE ) do |match|
+ lines = match.split( /\n/ )
+ last_line = -1
+ depth = []
+ lines.each_with_index do |line, line_id|
+ if line =~ LISTS_CONTENT_RE
+ tl,atts,content = $~[1..3]
+ if depth.last
+ if depth.last.length > tl.length
+ (depth.length - 1).downto(0) do |i|
+ break if depth[i].length == tl.length
+ lines[line_id - 1] << "</li>\n\t</#{ lT( depth[i] ) }l>\n\t"
+ depth.pop
+ end
+ end
+ if depth.last and depth.last.length == tl.length
+ lines[line_id - 1] << '</li>'
+ end
+ end
+ unless depth.last == tl
+ depth << tl
+ atts = pba( atts )
+ atts = shelve( atts ) if atts
+ lines[line_id] = "\t<#{ lT(tl) }l#{ atts }>\n\t<li>#{ content }"
+ else
+ lines[line_id] = "\t\t<li>#{ content }"
+ end
+ last_line = line_id
+
+ else
+ last_line = line_id
+ end
+ if line_id - last_line > 1 or line_id == lines.length - 1
+ depth.delete_if do |v|
+ lines[last_line] << "</li>\n\t</#{ lT( v ) }l>"
+ end
+ end
+ end
+ lines.join( "\n" )
+ end
+ end
+
+ QUOTES_RE = /(^>+([^\n]*?)\n?)+/m
+ QUOTES_CONTENT_RE = /^([> ]+)(.*)$/m
+
+ def block_textile_quotes( text )
+ text.gsub!( QUOTES_RE ) do |match|
+ lines = match.split( /\n/ )
+ quotes = ''
+ indent = 0
+ lines.each do |line|
+ line =~ QUOTES_CONTENT_RE
+ bq,content = $1, $2
+ l = bq.count('>')
+ if l != indent
+ quotes << ("\n\n" + (l>indent ? '<blockquote>' * (l-indent) : '</blockquote>' * (indent-l)) + "\n\n")
+ indent = l
+ end
+ quotes << (content + "\n")
+ end
+ quotes << ("\n" + '</blockquote>' * indent + "\n\n")
+ quotes
+ end
+ end
+
+ CODE_RE = /(\W)
+ @
+ (?:\|(\w+?)\|)?
+ (.+?)
+ @
+ (?=\W)/x
+
+ def inline_textile_code( text )
+ text.gsub!( CODE_RE ) do |m|
+ before,lang,code,after = $~[1..4]
+ lang = " lang=\"#{ lang }\"" if lang
+ rip_offtags( "#{ before }<code#{ lang }>#{ code }</code>#{ after }" )
+ end
+ end
+
+ def lT( text )
+ text =~ /\#$/ ? 'o' : 'u'
+ end
+
+ def hard_break( text )
+ text.gsub!( /(.)\n(?!\Z| *([#*=]+(\s|$)|[{|]))/, "\\1<br />" ) if hard_breaks
+ end
+
+ BLOCKS_GROUP_RE = /\n{2,}(?! )/m
+
+ def blocks( text, deep_code = false )
+ text.replace( text.split( BLOCKS_GROUP_RE ).collect do |blk|
+ plain = blk !~ /\A[#*> ]/
+
+ # skip blocks that are complex HTML
+ if blk =~ /^<\/?(\w+).*>/ and not SIMPLE_HTML_TAGS.include? $1
+ blk
+ else
+ # search for indentation levels
+ blk.strip!
+ if blk.empty?
+ blk
+ else
+ code_blk = nil
+ blk.gsub!( /((?:\n(?:\n^ +[^\n]*)+)+)/m ) do |iblk|
+ flush_left iblk
+ blocks iblk, plain
+ iblk.gsub( /^(\S)/, "\t\\1" )
+ if plain
+ code_blk = iblk; ""
+ else
+ iblk
+ end
+ end
+
+ block_applied = 0
+ @rules.each do |rule_name|
+ block_applied += 1 if ( rule_name.to_s.match /^block_/ and method( rule_name ).call( blk ) )
+ end
+ if block_applied.zero?
+ if deep_code
+ blk = "\t<pre><code>#{ blk }</code></pre>"
+ else
+ blk = "\t<p>#{ blk }</p>"
+ end
+ end
+ # hard_break blk
+ blk + "\n#{ code_blk }"
+ end
+ end
+
+ end.join( "\n\n" ) )
+ end
+
+ def textile_bq( tag, atts, cite, content )
+ cite, cite_title = check_refs( cite )
+ cite = " cite=\"#{ cite }\"" if cite
+ atts = shelve( atts ) if atts
+ "\t<blockquote#{ cite }>\n\t\t<p#{ atts }>#{ content }</p>\n\t</blockquote>"
+ end
+
+ def textile_p( tag, atts, cite, content )
+ atts = shelve( atts ) if atts
+ "\t<#{ tag }#{ atts }>#{ content }</#{ tag }>"
+ end
+
+ alias textile_h1 textile_p
+ alias textile_h2 textile_p
+ alias textile_h3 textile_p
+ alias textile_h4 textile_p
+ alias textile_h5 textile_p
+ alias textile_h6 textile_p
+
+ def textile_fn_( tag, num, atts, cite, content )
+ atts << " id=\"fn#{ num }\""
+ content = "<sup>#{ num }</sup> #{ content }"
+ atts = shelve( atts ) if atts
+ "\t<p#{ atts }>#{ content }</p>"
+ end
+
+ BLOCK_RE = /^(([a-z]+)(\d*))(#{A}#{C})\.(?::(\S+))? (.*)$/m
+
+ def block_textile_prefix( text )
+ if text =~ BLOCK_RE
+ tag,tagpre,num,atts,cite,content = $~[1..6]
+ atts = pba( atts )
+
+ # pass to prefix handler
+ if respond_to? "textile_#{ tag }", true
+ text.gsub!( $&, method( "textile_#{ tag }" ).call( tag, atts, cite, content ) )
+ elsif respond_to? "textile_#{ tagpre }_", true
+ text.gsub!( $&, method( "textile_#{ tagpre }_" ).call( tagpre, num, atts, cite, content ) )
+ end
+ end
+ end
+
+ SETEXT_RE = /\A(.+?)\n([=-])[=-]* *$/m
+ def block_markdown_setext( text )
+ if text =~ SETEXT_RE
+ tag = if $2 == "="; "h1"; else; "h2"; end
+ blk, cont = "<#{ tag }>#{ $1 }</#{ tag }>", $'
+ blocks cont
+ text.replace( blk + cont )
+ end
+ end
+
+ ATX_RE = /\A(\#{1,6}) # $1 = string of #'s
+ [ ]*
+ (.+?) # $2 = Header text
+ [ ]*
+ \#* # optional closing #'s (not counted)
+ $/x
+ def block_markdown_atx( text )
+ if text =~ ATX_RE
+ tag = "h#{ $1.length }"
+ blk, cont = "<#{ tag }>#{ $2 }</#{ tag }>\n\n", $'
+ blocks cont
+ text.replace( blk + cont )
+ end
+ end
+
+ MARKDOWN_BQ_RE = /\A(^ *> ?.+$(.+\n)*\n*)+/m
+
+ def block_markdown_bq( text )
+ text.gsub!( MARKDOWN_BQ_RE ) do |blk|
+ blk.gsub!( /^ *> ?/, '' )
+ flush_left blk
+ blocks blk
+ blk.gsub!( /^(\S)/, "\t\\1" )
+ "<blockquote>\n#{ blk }\n</blockquote>\n\n"
+ end
+ end
+
+ MARKDOWN_RULE_RE = /^(#{
+ ['*', '-', '_'].collect { |ch| ' ?(' + Regexp::quote( ch ) + ' ?){3,}' }.join( '|' )
+ })$/
+
+ def block_markdown_rule( text )
+ text.gsub!( MARKDOWN_RULE_RE ) do |blk|
+ "<hr />"
+ end
+ end
+
+ # XXX TODO XXX
+ def block_markdown_lists( text )
+ end
+
+ def inline_textile_span( text )
+ QTAGS.each do |qtag_rc, ht, qtag_re, rtype|
+ text.gsub!( qtag_re ) do |m|
+
+ case rtype
+ when :limit
+ sta,qtag,atts,cite,content = $~[1..5]
+ else
+ qtag,atts,cite,content = $~[1..4]
+ sta = ''
+ end
+ atts = pba( atts )
+ atts << " cite=\"#{ cite }\"" if cite
+ atts = shelve( atts ) if atts
+
+ "#{ sta }<#{ ht }#{ atts }>#{ content }</#{ ht }>"
+
+ end
+ end
+ end
+
+ LINK_RE = /
+ ([\s\[{(]|[#{PUNCT}])? # $pre
+ " # start
+ (#{C}) # $atts
+ ([^"\n]+?) # $text
+ \s?
+ (?:\(([^)]+?)\)(?="))? # $title
+ ":
+ ([\w\/]\S+?) # $url
+ (\/)? # $slash
+ ([^\w\/;]*?) # $post
+ (?=<|\s|$)
+ /x
+
+ def inline_textile_link( text )
+ text.gsub!( LINK_RE ) do |m|
+ pre,atts,text,title,url,slash,post = $~[1..7]
+
+ url, url_title = check_refs( url )
+ title ||= url_title
+
+ atts = pba( atts )
+ atts = " href=\"#{ url }#{ slash }\"#{ atts }"
+ atts << " title=\"#{ title }\"" if title
+ atts = shelve( atts ) if atts
+
+ external = (url =~ /^https?:\/\//) ? ' class="external"' : ''
+
+ "#{ pre }<a#{ atts }#{ external }>#{ text }</a>#{ post }"
+ end
+ end
+
+ MARKDOWN_REFLINK_RE = /
+ \[([^\[\]]+)\] # $text
+ [ ]? # opt. space
+ (?:\n[ ]*)? # one optional newline followed by spaces
+ \[(.*?)\] # $id
+ /x
+
+ def inline_markdown_reflink( text )
+ text.gsub!( MARKDOWN_REFLINK_RE ) do |m|
+ text, id = $~[1..2]
+
+ if id.empty?
+ url, title = check_refs( text )
+ else
+ url, title = check_refs( id )
+ end
+
+ atts = " href=\"#{ url }\""
+ atts << " title=\"#{ title }\"" if title
+ atts = shelve( atts )
+
+ "<a#{ atts }>#{ text }</a>"
+ end
+ end
+
+ MARKDOWN_LINK_RE = /
+ \[([^\[\]]+)\] # $text
+ \( # open paren
+ [ \t]* # opt space
+ <?(.+?)>? # $href
+ [ \t]* # opt space
+ (?: # whole title
+ (['"]) # $quote
+ (.*?) # $title
+ \3 # matching quote
+ )? # title is optional
+ \)
+ /x
+
+ def inline_markdown_link( text )
+ text.gsub!( MARKDOWN_LINK_RE ) do |m|
+ text, url, quote, title = $~[1..4]
+
+ atts = " href=\"#{ url }\""
+ atts << " title=\"#{ title }\"" if title
+ atts = shelve( atts )
+
+ "<a#{ atts }>#{ text }</a>"
+ end
+ end
+
+ TEXTILE_REFS_RE = /(^ *)\[([^\[\n]+?)\](#{HYPERLINK})(?=\s|$)/
+ MARKDOWN_REFS_RE = /(^ *)\[([^\n]+?)\]:\s+<?(#{HYPERLINK})>?(?:\s+"((?:[^"]|\\")+)")?(?=\s|$)/m
+
+ def refs( text )
+ @rules.each do |rule_name|
+ method( rule_name ).call( text ) if rule_name.to_s.match /^refs_/
+ end
+ end
+
+ def refs_textile( text )
+ text.gsub!( TEXTILE_REFS_RE ) do |m|
+ flag, url = $~[2..3]
+ @urlrefs[flag.downcase] = [url, nil]
+ nil
+ end
+ end
+
+ def refs_markdown( text )
+ text.gsub!( MARKDOWN_REFS_RE ) do |m|
+ flag, url = $~[2..3]
+ title = $~[6]
+ @urlrefs[flag.downcase] = [url, title]
+ nil
+ end
+ end
+
+ def check_refs( text )
+ ret = @urlrefs[text.downcase] if text
+ ret || [text, nil]
+ end
+
+ IMAGE_RE = /
+ (<p>|.|^) # start of line?
+ \! # opening
+ (\<|\=|\>)? # optional alignment atts
+ (#{C}) # optional style,class atts
+ (?:\. )? # optional dot-space
+ ([^\s(!]+?) # presume this is the src
+ \s? # optional space
+ (?:\(((?:[^\(\)]|\([^\)]+\))+?)\))? # optional title
+ \! # closing
+ (?::#{ HYPERLINK })? # optional href
+ /x
+
+ def inline_textile_image( text )
+ text.gsub!( IMAGE_RE ) do |m|
+ stln,algn,atts,url,title,href,href_a1,href_a2 = $~[1..8]
+ atts = pba( atts )
+ atts = " src=\"#{ url }\"#{ atts }"
+ atts << " title=\"#{ title }\"" if title
+ atts << " alt=\"#{ title }\""
+ # size = @getimagesize($url);
+ # if($size) $atts.= " $size[3]";
+
+ href, alt_title = check_refs( href ) if href
+ url, url_title = check_refs( url )
+
+ out = ''
+ out << "<a#{ shelve( " href=\"#{ href }\"" ) }>" if href
+ out << "<img#{ shelve( atts ) } />"
+ out << "</a>#{ href_a1 }#{ href_a2 }" if href
+
+ if algn
+ algn = h_align( algn )
+ if stln == "<p>"
+ out = "<p style=\"float:#{ algn }\">#{ out }"
+ else
+ out = "#{ stln }<div style=\"float:#{ algn }\">#{ out }</div>"
+ end
+ else
+ out = stln + out
+ end
+
+ out
+ end
+ end
+
+ def shelve( val )
+ @shelf << val
+ " :redsh##{ @shelf.length }:"
+ end
+
+ def retrieve( text )
+ @shelf.each_with_index do |r, i|
+ text.gsub!( " :redsh##{ i + 1 }:", r )
+ end
+ end
+
+ def incoming_entities( text )
+ ## turn any incoming ampersands into a dummy character for now.
+ ## This uses a negative lookahead for alphanumerics followed by a semicolon,
+ ## implying an incoming html entity, to be skipped
+
+ text.gsub!( /&(?![#a-z0-9]+;)/i, "x%x%" )
+ end
+
+ def no_textile( text )
+ text.gsub!( /(^|\s)==([^=]+.*?)==(\s|$)?/,
+ '\1<notextile>\2</notextile>\3' )
+ text.gsub!( /^ *==([^=]+.*?)==/m,
+ '\1<notextile>\2</notextile>\3' )
+ end
+
+ def clean_white_space( text )
+ # normalize line breaks
+ text.gsub!( /\r\n/, "\n" )
+ text.gsub!( /\r/, "\n" )
+ text.gsub!( /\t/, ' ' )
+ text.gsub!( /^ +$/, '' )
+ text.gsub!( /\n{3,}/, "\n\n" )
+ text.gsub!( /"$/, "\" " )
+
+ # if entire document is indented, flush
+ # to the left side
+ flush_left text
+ end
+
+ def flush_left( text )
+ indt = 0
+ if text =~ /^ /
+ while text !~ /^ {#{indt}}\S/
+ indt += 1
+ end unless text.empty?
+ if indt.nonzero?
+ text.gsub!( /^ {#{indt}}/, '' )
+ end
+ end
+ end
+
+ def footnote_ref( text )
+ text.gsub!( /\b\[([0-9]+?)\](\s)?/,
+ '<sup><a href="#fn\1">\1</a></sup>\2' )
+ end
+
+ OFFTAGS = /(code|pre|kbd|notextile)/
+ OFFTAG_MATCH = /(?:(<\/#{ OFFTAGS }>)|(<#{ OFFTAGS }[^>]*>))(.*?)(?=<\/?#{ OFFTAGS }|\Z)/mi
+ OFFTAG_OPEN = /<#{ OFFTAGS }/
+ OFFTAG_CLOSE = /<\/?#{ OFFTAGS }/
+ HASTAG_MATCH = /(<\/?\w[^\n]*?>)/m
+ ALLTAG_MATCH = /(<\/?\w[^\n]*?>)|.*?(?=<\/?\w[^\n]*?>|$)/m
+
+ def glyphs_textile( text, level = 0 )
+ if text !~ HASTAG_MATCH
+ pgl text
+ footnote_ref text
+ else
+ codepre = 0
+ text.gsub!( ALLTAG_MATCH ) do |line|
+ ## matches are off if we're between <code>, <pre> etc.
+ if $1
+ if line =~ OFFTAG_OPEN
+ codepre += 1
+ elsif line =~ OFFTAG_CLOSE
+ codepre -= 1
+ codepre = 0 if codepre < 0
+ end
+ elsif codepre.zero?
+ glyphs_textile( line, level + 1 )
+ else
+ htmlesc( line, :NoQuotes )
+ end
+ # p [level, codepre, line]
+
+ line
+ end
+ end
+ end
+
+ def rip_offtags( text )
+ if text =~ /<.*>/
+ ## strip and encode <pre> content
+ codepre, used_offtags = 0, {}
+ text.gsub!( OFFTAG_MATCH ) do |line|
+ if $3
+ offtag, aftertag = $4, $5
+ codepre += 1
+ used_offtags[offtag] = true
+ if codepre - used_offtags.length > 0
+ htmlesc( line, :NoQuotes ) unless used_offtags['notextile']
+ @pre_list.last << line
+ line = ""
+ else
+ htmlesc( aftertag, :NoQuotes ) if aftertag and not used_offtags['notextile']
+ line = "<redpre##{ @pre_list.length }>"
+ @pre_list << "#{ $3 }#{ aftertag }"
+ end
+ elsif $1 and codepre > 0
+ if codepre - used_offtags.length > 0
+ htmlesc( line, :NoQuotes ) unless used_offtags['notextile']
+ @pre_list.last << line
+ line = ""
+ end
+ codepre -= 1 unless codepre.zero?
+ used_offtags = {} if codepre.zero?
+ end
+ line
+ end
+ end
+ text
+ end
+
+ def smooth_offtags( text )
+ unless @pre_list.empty?
+ ## replace <pre> content
+ text.gsub!( /<redpre#(\d+)>/ ) { @pre_list[$1.to_i] }
+ end
+ end
+
+ def inline( text )
+ [/^inline_/, /^glyphs_/].each do |meth_re|
+ @rules.each do |rule_name|
+ method( rule_name ).call( text ) if rule_name.to_s.match( meth_re )
+ end
+ end
+ end
+
+ def h_align( text )
+ H_ALGN_VALS[text]
+ end
+
+ def v_align( text )
+ V_ALGN_VALS[text]
+ end
+
+ def textile_popup_help( name, windowW, windowH )
+ ' <a target="_blank" href="http://hobix.com/textile/#' + helpvar + '" onclick="window.open(this.href, \'popupwindow\', \'width=' + windowW + ',height=' + windowH + ',scrollbars,resizable\'); return false;">' + name + '</a><br />'
+ end
+
+ # HTML cleansing stuff
+ BASIC_TAGS = {
+ 'a' => ['href', 'title'],
+ 'img' => ['src', 'alt', 'title'],
+ 'br' => [],
+ 'i' => nil,
+ 'u' => nil,
+ 'b' => nil,
+ 'pre' => nil,
+ 'kbd' => nil,
+ 'code' => ['lang'],
+ 'cite' => nil,
+ 'strong' => nil,
+ 'em' => nil,
+ 'ins' => nil,
+ 'sup' => nil,
+ 'sub' => nil,
+ 'del' => nil,
+ 'table' => nil,
+ 'tr' => nil,
+ 'td' => ['colspan', 'rowspan'],
+ 'th' => nil,
+ 'ol' => nil,
+ 'ul' => nil,
+ 'li' => nil,
+ 'p' => nil,
+ 'h1' => nil,
+ 'h2' => nil,
+ 'h3' => nil,
+ 'h4' => nil,
+ 'h5' => nil,
+ 'h6' => nil,
+ 'blockquote' => ['cite']
+ }
+
+ def clean_html( text, tags = BASIC_TAGS )
+ text.gsub!( /<!\[CDATA\[/, '' )
+ text.gsub!( /<(\/*)(\w+)([^>]*)>/ ) do
+ raw = $~
+ tag = raw[2].downcase
+ if tags.has_key? tag
+ pcs = [tag]
+ tags[tag].each do |prop|
+ ['"', "'", ''].each do |q|
+ q2 = ( q != '' ? q : '\s' )
+ if raw[3] =~ /#{prop}\s*=\s*#{q}([^#{q2}]+)#{q}/i
+ attrv = $1
+ next if prop == 'src' and attrv =~ %r{^(?!http)\w+:}
+ pcs << "#{prop}=\"#{$1.gsub('"', '\\"')}\""
+ break
+ end
+ end
+ end if tags[tag]
+ "<#{raw[1]}#{pcs.join " "}>"
+ else
+ " "
+ end
+ end
+ end
+
+ ALLOWED_TAGS = %w(redpre pre code notextile)
+
+ def escape_html_tags(text)
+ text.gsub!(%r{<(\/?([!\w]+)[^<>\n]*)(>?)}) {|m| ALLOWED_TAGS.include?($2) ? "<#{$1}#{$3}" : "<#{$1}#{'>' unless $3.blank?}" }
+ end
+end
+
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-require 'redcloth'
+require 'redcloth3'
require 'coderay'
module Redmine
private
- class TextileFormatter < RedCloth
+ class TextileFormatter < RedCloth3
# auto_link rule after textile rules so that it doesn't break !image_url! tags
RULES = [:textile, :block_markdown_rule, :inline_auto_link, :inline_auto_mailto, :inline_toc, :inline_macros]
projects / redmine.git / commitdiff