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1 | 1 | # Redmine - project management software |
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2 | 2 | # Copyright (C) 2006-2011 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 | module Redmine |
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19 | 19 | module WikiFormatting |
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20 | 20 | class StaleSectionError < Exception; end |
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21 | 21 | |
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22 | 22 | @@formatters = {} |
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23 | 23 | |
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24 | 24 | class << self |
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25 | 25 | def map |
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26 | 26 | yield self |
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27 | 27 | end |
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28 | 28 | |
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29 | 29 | def register(name, formatter, helper) |
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30 | 30 | raise ArgumentError, "format name '#{name}' is already taken" if @@formatters[name.to_s] |
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31 | 31 | @@formatters[name.to_s] = {:formatter => formatter, :helper => helper} |
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32 | 32 | end |
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33 | 33 | |
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34 | 34 | def formatter |
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35 | 35 | formatter_for(Setting.text_formatting) |
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36 | 36 | end |
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37 | 37 | |
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38 | 38 | def formatter_for(name) |
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39 | 39 | entry = @@formatters[name.to_s] |
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40 | 40 | (entry && entry[:formatter]) || Redmine::WikiFormatting::NullFormatter::Formatter |
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41 | 41 | end |
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42 | 42 | |
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43 | 43 | def helper_for(name) |
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44 | 44 | entry = @@formatters[name.to_s] |
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45 | 45 | (entry && entry[:helper]) || Redmine::WikiFormatting::NullFormatter::Helper |
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46 | 46 | end |
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47 | 47 | |
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48 | 48 | def format_names |
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49 | 49 | @@formatters.keys.map |
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50 | 50 | end |
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51 | 51 | |
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52 | 52 | def to_html(format, text, options = {}) |
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53 | 53 | text = if Setting.cache_formatted_text? && text.size > 2.kilobyte && cache_store && cache_key = cache_key_for(format, options[:object], options[:attribute]) |
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54 | 54 | # Text retrieved from the cache store may be frozen |
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55 | 55 | # We need to dup it so we can do in-place substitutions with gsub! |
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56 | 56 | cache_store.fetch cache_key do |
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57 | 57 | formatter_for(format).new(text).to_html |
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58 | 58 | end.dup |
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59 | 59 | else |
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60 | 60 | formatter_for(format).new(text).to_html |
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61 | 61 | end |
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62 | 62 | text |
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63 | 63 | end |
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64 | 64 | |
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65 | 65 | # Returns true if the text formatter supports single section edit |
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66 | 66 | def supports_section_edit? |
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67 | 67 | (formatter.instance_methods & ['update_section', :update_section]).any? |
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68 | 68 | end |
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69 | 69 | |
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70 | 70 | # Returns a cache key for the given text +format+, +object+ and +attribute+ or nil if no caching should be done |
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71 | 71 | def cache_key_for(format, object, attribute) |
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72 | 72 | if object && attribute && !object.new_record? && object.respond_to?(:updated_on) && !format.blank? |
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73 | 73 | "formatted_text/#{format}/#{object.class.model_name.cache_key}/#{object.id}-#{attribute}-#{object.updated_on.to_s(:number)}" |
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74 | 74 | end |
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75 | 75 | end |
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76 | 76 | |
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77 | 77 | # Returns the cache store used to cache HTML output |
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78 | 78 | def cache_store |
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79 | 79 | ActionController::Base.cache_store |
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80 | 80 | end |
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81 | 81 | end |
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82 | 82 | |
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83 | 83 | module LinksHelper |
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84 | 84 | AUTO_LINK_RE = %r{ |
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85 | 85 | ( # leading text |
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86 | 86 | <\w+.*?>| # leading HTML tag, or |
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87 | 87 | [^=<>!:'"/]| # leading punctuation, or |
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88 | 88 | ^ # beginning of line |
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89 | 89 | ) |
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90 | 90 | ( |
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91 | 91 | (?:https?://)| # protocol spec, or |
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92 | 92 | (?:s?ftps?://)| |
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93 | 93 | (?:www\.) # www.* |
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94 | 94 | ) |
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95 | 95 | ( |
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96 | 96 | (\S+?) # url |
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97 | 97 | (\/)? # slash |
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98 | 98 | ) |
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99 | 99 | ((?:>)?|[^\w\=\/;\(\)]*?) # post |
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100 | 100 | (?=<|\s|$) |
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101 | 101 | }x unless const_defined?(:AUTO_LINK_RE) |
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102 | 102 | |
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103 | 103 | # Destructively remplaces urls into clickable links |
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104 | 104 | def auto_link!(text) |
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105 | 105 | text.gsub!(AUTO_LINK_RE) do |
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106 | 106 | all, leading, proto, url, post = $&, $1, $2, $3, $6 |
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107 | 107 | if leading =~ /<a\s/i || leading =~ /![<>=]?/ |
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108 | 108 | # don't replace URL's that are already linked |
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109 | 109 | # and URL's prefixed with ! !> !< != (textile images) |
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110 | 110 | all |
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111 | 111 | else |
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112 | 112 | # Idea below : an URL with unbalanced parethesis and |
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113 | 113 | # ending by ')' is put into external parenthesis |
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114 | 114 | if ( url[-1]==?) and ((url.count("(") - url.count(")")) < 0 ) ) |
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115 | 115 | url=url[0..-2] # discard closing parenth from url |
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116 | 116 | post = ")"+post # add closing parenth to post |
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117 | 117 | end |
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118 | 118 | content = proto + url |
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119 | 119 | href = "#{proto=="www."?"http://www.":proto}#{url}" |
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120 | 120 | %(#{leading}<a class="external" href="#{ERB::Util.html_escape href}">#{ERB::Util.html_escape content}</a>#{post}).html_safe |
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121 | 121 | end |
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122 | 122 | end |
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123 | 123 | end |
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124 | 124 | |
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125 | 125 | # Destructively remplaces email addresses into clickable links |
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126 | 126 | def auto_mailto!(text) |
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127 | 127 | text.gsub!(/([\w\.!#\$%\-+.]+@[A-Za-z0-9\-]+(\.[A-Za-z0-9\-]+)+)/) do |
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128 | 128 | mail = $1 |
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129 | 129 | if text.match(/<a\b[^>]*>(.*)(#{Regexp.escape(mail)})(.*)<\/a>/) |
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130 | 130 | |
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131 | 131 | else |
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132 | 132 | %(<a class="email" href="mailto:#{ERB::Util.html_escape mail}">#{ERB::Util.html_escape mail}</a>).html_safe |
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133 | 133 | end |
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134 | 134 | end |
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135 | 135 | end |
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136 | 136 | end |
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137 | 137 | |
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138 | 138 | # Default formatter module |
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139 | 139 | module NullFormatter |
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140 | 140 | class Formatter |
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141 | 141 | include ActionView::Helpers::TagHelper |
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142 | 142 | include ActionView::Helpers::TextHelper |
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143 | 143 | include ActionView::Helpers::UrlHelper |
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144 | 144 | include Redmine::WikiFormatting::LinksHelper |
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145 | 145 | |
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146 | 146 | def initialize(text) |
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147 | 147 | @text = text |
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148 | 148 | end |
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149 | 149 | |
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150 | 150 | def to_html(*args) |
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151 | 151 | t = CGI::escapeHTML(@text) |
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152 | 152 | auto_link!(t) |
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153 | 153 | auto_mailto!(t) |
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154 | simple_format(t) | |
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154 | simple_format(t, {}, :sanitize => false) | |
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155 | 155 | end |
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156 | 156 | end |
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157 | 157 | |
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158 | 158 | module Helper |
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159 | 159 | def wikitoolbar_for(field_id) |
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160 | 160 | end |
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161 | 161 | |
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162 | 162 | def heads_for_wiki_formatter |
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163 | 163 | end |
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164 | 164 | |
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165 | 165 | def initial_page_content(page) |
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166 | 166 | page.pretty_title.to_s |
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167 | 167 | end |
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168 | 168 | end |
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169 | 169 | end |
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170 | 170 | end |
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171 | 171 | end |
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