1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
# redMine - project management software
# Copyright (C) 2006-2007 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# 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 'coderay'
module Redmine
module WikiFormatting
private
class TextileFormatter < RedCloth
# 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]
def initialize(*args)
super
self.hard_breaks=true
self.no_span_caps=true
end
def to_html(*rules, &block)
@toc = []
@macros_runner = block
super(*RULES).to_s
end
private
# Patch for RedCloth. Fixed in RedCloth r128 but _why hasn't released it yet.
# <a href="http://code.whytheluckystiff.net/redcloth/changeset/128">http://code.whytheluckystiff.net/redcloth/changeset/128</a>
def hard_break( text )
text.gsub!( /(.)\n(?!\n|\Z|>| *(>? *[#*=]+(\s|$)|[{|]))/, "\\1<br />\n" ) if hard_breaks
end
# Patch to add code highlighting support to RedCloth
def smooth_offtags( text )
unless @pre_list.empty?
## replace <pre> content
text.gsub!(/<redpre#(\d+)>/) do
content = @pre_list[$1.to_i]
if content.match(/<code\s+class="(\w+)">\s?(.+)/m)
content = "<code class=\"#{$1} CodeRay\">" +
CodeRay.scan($2, $1.downcase).html(:escape => false, :line_numbers => :inline)
end
content
end
end
end
# Patch to add 'table of content' support to RedCloth
def textile_p_withtoc(tag, atts, cite, content)
if tag =~ /^h(\d)$/
@toc << [$1.to_i, content]
end
content = "<a name=\"#{@toc.length}\" class=\"wiki-page\"></a>" + content
textile_p(tag, atts, cite, content)
end
alias :textile_h1 :textile_p_withtoc
alias :textile_h2 :textile_p_withtoc
alias :textile_h3 :textile_p_withtoc
def inline_toc(text)
text.gsub!(/<p>\{\{([<>]?)toc\}\}<\/p>/i) do
div_class = 'toc'
div_class << ' right' if $1 == '>'
div_class << ' left' if $1 == '<'
out = "<div class=\"#{div_class}\">"
@toc.each_with_index do |heading, index|
# remove wiki links from the item
toc_item = heading.last.gsub(/(\[\[|\]\])/, '')
# remove styles
# eg. %{color:red}Triggers% => Triggers
toc_item.gsub! %r[%\{[^\}]*\}([^%]+)%], '\\1'
out << "<a href=\"##{index+1}\" class=\"heading#{heading.first}\">#{toc_item}</a>"
end
out << '</div>'
out
end
end
MACROS_RE = /
(!)? # escaping
(
\{\{ # opening tag
([\w]+) # macro name
(\(([^\}]*)\))? # optional arguments
\}\} # closing tag
)
/x unless const_defined?(:MACROS_RE)
def inline_macros(text)
text.gsub!(MACROS_RE) do
esc, all, macro = $1, $2, $3.downcase
args = ($5 || '').split(',').each(&:strip)
if esc.nil?
begin
@macros_runner.call(macro, args)
rescue => e
"<div class=\"flash error\">Error executing the <strong>#{macro}</strong> macro (#{e})</div>"
end || all
else
all
end
end
end
AUTO_LINK_RE = %r{
( # leading text
<\w+.*?>| # leading HTML tag, or
[^=<>!:'"/]| # leading punctuation, or
^ # beginning of line
)
(
(?:https?://)| # protocol spec, or
(?:www\.) # www.*
)
(
(\S+?) # url
(\/)? # slash
)
([^\w\=\/;]*?) # post
(?=<|\s|$)
}x unless const_defined?(:AUTO_LINK_RE)
# Turns all urls into clickable links (code from Rails).
def inline_auto_link(text)
text.gsub!(AUTO_LINK_RE) do
all, leading, proto, url, post = $&, $1, $2, $3, $6
if leading =~ /<a\s/i || leading =~ /![<>=]?/
# don't replace URL's that are already linked
# and URL's prefixed with ! !> !< != (textile images)
all
else
%(#{leading}<a class="external" href="#{proto=="www."?"http://www.":proto}#{url}">#{proto + url}</a>#{post})
end
end
end
# Turns all email addresses into clickable links (code from Rails).
def inline_auto_mailto(text)
text.gsub!(/([\w\.!#\$%\-+.]+@[A-Za-z0-9\-]+(\.[A-Za-z0-9\-]+)+)/) do
mail = $1
if text.match(/<a\b[^>]*>(.*)(#{Regexp.escape(mail)})(.*)<\/a>/)
mail
else
%{<a href="mailto:#{mail}" class="email">#{mail}</a>}
end
end
end
end
public
def self.to_html(text, options = {}, &block)
TextileFormatter.new(text).to_html(&block)
end
end
end
|
