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1 | 1 | # redMine - project management software |
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2 | 2 | # Copyright (C) 2006-2007 Jean-Philippe Lang |
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3 | 3 | # |
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4 | 4 | # This program is free software; you can redistribute it and/or |
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5 | 5 | # modify it under the terms of the GNU General Public License |
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6 | 6 | # as published by the Free Software Foundation; either version 2 |
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7 | 7 | # of the License, or (at your option) any later version. |
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8 | 8 | # |
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9 | 9 | # This program is distributed in the hope that it will be useful, |
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10 | 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | 12 | # GNU General Public License for more details. |
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13 | 13 | # |
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14 | 14 | # You should have received a copy of the GNU General Public License |
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15 | 15 | # along with this program; if not, write to the Free Software |
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16 | 16 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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17 | 17 | |
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18 | 18 | require 'redcloth' |
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19 | 19 | require 'coderay' |
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20 | 20 | |
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21 | 21 | module Redmine |
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22 | 22 | module WikiFormatting |
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23 | 23 | |
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24 | 24 | private |
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25 | 25 | |
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26 | 26 | class TextileFormatter < RedCloth |
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27 | 27 | |
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28 | 28 | # auto_link rule after textile rules so that it doesn't break !image_url! tags |
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29 | 29 | RULES = [:textile, :block_markdown_rule, :inline_auto_link, :inline_auto_mailto, :inline_toc, :inline_macros] |
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30 | 30 | |
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31 | 31 | def initialize(*args) |
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32 | 32 | super |
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33 | 33 | self.hard_breaks=true |
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34 | 34 | self.no_span_caps=true |
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35 | 35 | end |
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36 | 36 | |
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37 | 37 | def to_html(*rules, &block) |
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38 | 38 | @toc = [] |
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39 | 39 | @macros_runner = block |
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40 | 40 | super(*RULES).to_s |
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41 | 41 | end |
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42 | 42 | |
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43 | 43 | private |
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44 | 44 | |
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45 | 45 | # Patch for RedCloth. Fixed in RedCloth r128 but _why hasn't released it yet. |
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46 | 46 | # <a href="http://code.whytheluckystiff.net/redcloth/changeset/128">http://code.whytheluckystiff.net/redcloth/changeset/128</a> |
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47 | 47 | def hard_break( text ) |
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48 | 48 | text.gsub!( /(.)\n(?!\n|\Z| *([#*=]+(\s|$)|[{|]))/, "\\1<br />" ) if hard_breaks |
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49 | 49 | end |
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50 | 50 | |
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51 | 51 | # Patch to add code highlighting support to RedCloth |
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52 | 52 | def smooth_offtags( text ) |
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53 | 53 | unless @pre_list.empty? |
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54 | 54 | ## replace <pre> content |
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55 | 55 | text.gsub!(/<redpre#(\d+)>/) do |
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56 | 56 | content = @pre_list[$1.to_i] |
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57 | 57 | if content.match(/<code\s+class="(\w+)">\s?(.+)/m) |
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58 | 58 | content = "<code class=\"#{$1} CodeRay\">" + |
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59 | CodeRay.scan($2, $1).html(:escape => false, :line_numbers => :inline) | |
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59 | CodeRay.scan($2, $1.downcase).html(:escape => false, :line_numbers => :inline) | |
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60 | 60 | end |
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61 | 61 | content |
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62 | 62 | end |
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63 | 63 | end |
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64 | 64 | end |
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65 | 65 | |
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66 | 66 | # Patch to add 'table of content' support to RedCloth |
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67 | 67 | def textile_p_withtoc(tag, atts, cite, content) |
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68 | 68 | if tag =~ /^h(\d)$/ |
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69 | 69 | @toc << [$1.to_i, content] |
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70 | 70 | end |
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71 | 71 | content = "<a name=\"#{@toc.length}\" class=\"wiki-page\"></a>" + content |
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72 | 72 | textile_p(tag, atts, cite, content) |
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73 | 73 | end |
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74 | 74 | |
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75 | 75 | alias :textile_h1 :textile_p_withtoc |
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76 | 76 | alias :textile_h2 :textile_p_withtoc |
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77 | 77 | alias :textile_h3 :textile_p_withtoc |
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78 | 78 | |
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79 | 79 | def inline_toc(text) |
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80 | 80 | text.gsub!(/<p>\{\{([<>]?)toc\}\}<\/p>/i) do |
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81 | 81 | div_class = 'toc' |
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82 | 82 | div_class << ' right' if $1 == '>' |
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83 | 83 | div_class << ' left' if $1 == '<' |
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84 | 84 | out = "<div class=\"#{div_class}\">" |
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85 | 85 | @toc.each_with_index do |heading, index| |
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86 | 86 | # remove wiki links from the item |
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87 | 87 | toc_item = heading.last.gsub(/(\[\[|\]\])/, '') |
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88 | 88 | out << "<a href=\"##{index+1}\" class=\"heading#{heading.first}\">#{toc_item}</a>" |
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89 | 89 | end |
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90 | 90 | out << '</div>' |
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91 | 91 | out |
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92 | 92 | end |
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93 | 93 | end |
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94 | 94 | |
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95 | 95 | MACROS_RE = / |
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96 | 96 | (!)? # escaping |
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97 | 97 | ( |
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98 | 98 | \{\{ # opening tag |
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99 | 99 | ([\w]+) # macro name |
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100 | 100 | (\(([^\}]*)\))? # optional arguments |
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101 | 101 | \}\} # closing tag |
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102 | 102 | ) |
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103 | 103 | /x unless const_defined?(:MACROS_RE) |
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104 | 104 | |
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105 | 105 | def inline_macros(text) |
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106 | 106 | text.gsub!(MACROS_RE) do |
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107 | 107 | esc, all, macro = $1, $2, $3.downcase |
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108 | 108 | args = ($5 || '').split(',').each(&:strip) |
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109 | 109 | if esc.nil? |
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110 | 110 | begin |
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111 | 111 | @macros_runner.call(macro, args) |
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112 | 112 | rescue => e |
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113 | 113 | "<div class=\"flash error\">Error executing the <strong>#{macro}</strong> macro (#{e})</div>" |
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114 | 114 | end || all |
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115 | 115 | else |
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116 | 116 | all |
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117 | 117 | end |
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118 | 118 | end |
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119 | 119 | end |
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120 | 120 | |
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121 | 121 | AUTO_LINK_RE = %r{ |
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122 | 122 | ( # leading text |
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123 | 123 | <\w+.*?>| # leading HTML tag, or |
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124 | 124 | [^=<>!:'"/]| # leading punctuation, or |
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125 | 125 | ^ # beginning of line |
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126 | 126 | ) |
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127 | 127 | ( |
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128 | 128 | (?:https?://)| # protocol spec, or |
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129 | 129 | (?:www\.) # www.* |
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130 | 130 | ) |
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131 | 131 | ( |
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132 | 132 | (\S+?) # url |
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133 | 133 | (\/)? # slash |
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134 | 134 | ) |
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135 | 135 | ([^\w\=\/;]*?) # post |
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136 | 136 | (?=<|\s|$) |
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137 | 137 | }x unless const_defined?(:AUTO_LINK_RE) |
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138 | 138 | |
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139 | 139 | # Turns all urls into clickable links (code from Rails). |
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140 | 140 | def inline_auto_link(text) |
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141 | 141 | text.gsub!(AUTO_LINK_RE) do |
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142 | 142 | all, leading, proto, url, post = $&, $1, $2, $3, $6 |
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143 | 143 | if leading =~ /<a\s/i || leading =~ /![<>=]?/ |
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144 | 144 | # don't replace URL's that are already linked |
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145 | 145 | # and URL's prefixed with ! !> !< != (textile images) |
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146 | 146 | all |
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147 | 147 | else |
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148 | 148 | %(#{leading}<a class="external" href="#{proto=="www."?"http://www.":proto}#{url}">#{proto + url}</a>#{post}) |
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149 | 149 | end |
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150 | 150 | end |
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151 | 151 | end |
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152 | 152 | |
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153 | 153 | # Turns all email addresses into clickable links (code from Rails). |
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154 | 154 | def inline_auto_mailto(text) |
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155 | 155 | text.gsub!(/([\w\.!#\$%\-+.]+@[A-Za-z0-9\-]+(\.[A-Za-z0-9\-]+)+)/) do |
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156 | 156 | text = $1 |
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157 | 157 | %{<a href="mailto:#{$1}" class="email">#{text}</a>} |
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158 | 158 | end |
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159 | 159 | end |
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160 | 160 | end |
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161 | 161 | |
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162 | 162 | public |
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163 | 163 | |
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164 | 164 | def self.to_html(text, options = {}, &block) |
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165 | 165 | TextileFormatter.new(text).to_html(&block) |
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166 | 166 | end |
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167 | 167 | end |
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168 | 168 | end |
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