Generated on Thu Mar 20 19:37:19 +0100 2008 with rcov 0.8.0
Code reported as executed by Ruby looks like this... and this: this line is also marked as covered. Lines considered as run by rcov, but not reported by Ruby, look like this, and this: these lines were inferred by rcov (using simple heuristics). Finally, here's a line marked as not executed.
| Name | Total lines | Lines of code | Total coverage | Code coverage | ||||||||
| rainpress/packer.rb | 240 | 96 |
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1 # == About 2 # 3 # Rainpress is a compressor for CSS. It's written in ruby, but should not be 4 # limited to ruby projects. 5 # 6 # Rainpress does not apply common compression algorithms like gzip, it removes 7 # unnecessary characters and replaces some attributes with a shorter equivalent 8 # name. 9 # 10 # Copyright:: Copyright (c) 2007-2008 Uwe L. Korn 11 # 12 # == License 13 # 14 # Copyright (c) 2007-2008 Uwe L. Korn 15 # 16 # Permission is hereby granted, free of charge, to any person obtaining a copy 17 # of this software and associated documentation files (the "Software"), to deal 18 # in the Software without restriction, including without limitation the rights 19 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 20 # copies of the Software, and to permit persons to whom the Software is 21 # furnished to do so, subject to the following conditions: 22 # 23 # The above copyright notice and this permission notice shall be included in 24 # all copies or substantial portions of the Software. 25 # 26 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 27 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 28 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 29 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 30 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 31 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 32 # THE SOFTWARE. 33 # 34 # Remark(not part of the license text): This is a MIT-style license 35 # 36 # == Links 37 # 38 # * {Rainpress Website}[http://rainpress.xhochy.com/] 39 # * {SVN repository}[http://code.google.com/p/rainpress/source] 40 # * {Bugtracker}[https://bugs.launchpad.net/rainpress/] 41 # * {Wiki}[http://code.google.com/p/rainpress/w/list] 42 # * {Translations}[https://translations.launchpad.net/rainpress/] 43 # * {XhochY Weblog (for Announcements about Rainpress)}[http://xhochy.org/en/] 44 # * {Mailinglist}[http://groups.google.com/group/xy-oss-projects-discussion] 45 # * {Continous Integration Builds and Tests}[http://cruisecontrol-rb.xhochy.com/builds/rainpress] 46 # * {Freshmeat Record}[http://freshmeat.net/projects/rainpress] 47 # * {Ohloh listing}[http://www.ohloh.net/projects/12620/] 48 module Rainpress 49 50 # == Information 51 # 52 # This is the main class of Rainpress, create an instance of it to compress 53 # your CSS-styles. 54 # 55 # Author:: Uwe L. Korn <uwelk@xhochy.org> 56 # 57 # == Simple Usage 58 # 59 # packer = Rainpress::Packer.new 60 # compressed_style = packer.compress(style) 61 class Packer 62 63 # Use always this functions if you want to compress your CSS-style 64 # 65 # <b>Options:</b> 66 # 67 # * <tt>:preserveComments</tt> - if set to true, comments will not be 68 # removed 69 # * <tt>:preserveNewline</tt> - if set to true, newlines will not be removed 70 # * <tt>:preserveSpaces</tt> - if set to true, spaces will not be removed 71 # * <tt>:preserveColors</tt> - if set to true, colors will not be modified 72 # * <tt>:skipMisc</tt> - if set to true, miscellaneous compression parts 73 # will be skipped 74 def compress(style, options = {}) 75 # remove comments 76 style = remove_comments(style) unless options[:preserveComments] 77 78 # remove newlines 79 style = remove_newlines(style) unless options[:preserveNewlines] 80 81 # remove unneeded spaces 82 style = remove_spaces(style) unless options[:preserveSpaces] 83 84 # replace colours with shorter names 85 style = shorten_colors(style) unless options[:preserveColors] 86 87 # make all other things 88 style = do_misc(style) unless options[:skipMisc] 89 90 style 91 end 92 93 # Remove all comments out of the CSS-Document 94 # 95 # Only /* text */ comments are supported. 96 # Attention: If you are doing css hacks for IE using the comment tricks, 97 # they will be removed using this function. Please consider for IE css style 98 # corrections the usage of conditionals comments in your (X)HTML document. 99 def remove_comments(script) 100 input = script 101 script = '' 102 103 while input.length > 0 do 104 pos = input.index("/*"); 105 106 # No more comments 107 if pos == nil 108 script += input 109 input = ''; 110 else # Comment beginning at pos 111 script += input[0..(pos-1)] if pos > 0 # only append text if there is some 112 input = input[(pos+2)..-1] 113 # Comment ending at pos 114 pos = input.index("*/") 115 input = input[(pos+2)..-1] 116 end 117 end 118 119 # return 120 script 121 end 122 123 # Remove all newline characters 124 # 125 # We take care of Windows(\r\n), Unix(\n) and Mac(\r) newlines. 126 def remove_newlines(script) 127 script.gsub(/\n|\r/,'') 128 end 129 130 # Remove unneeded spaces 131 # 132 # 1. Turn mutiple spaces into a single 133 # 2. Remove spaces around ;:{}, 134 # 3. Remove tabs 135 def remove_spaces(script) 136 script = script.gsub(/(\s(\s)+)/, ' ') 137 script = script.gsub(/\s*;\s*/,';') 138 script = script.gsub(/\s*:\s*/,':') 139 script = script.gsub(/\s*\{\s*/,'{') 140 script = script.gsub(/\s*\}\s*/,'}') 141 script = script.gsub(/\s*,\s*/,',') 142 script.gsub("\t",''); 143 end 144 145 # Replace color values with their shorter equivalent 146 # 147 # 1. Turn rgb(,,)-colors into #-values 148 # 2. Shorten #AABBCC down to #ABC 149 # 3. Replace names with their shorter hex-equivalent 150 # * white -> #fff 151 # * black -> #000 152 # 4. Replace #-values with their shorter name 153 # * #f00 -> red 154 def shorten_colors(style) 155 # rgb(50,101,152) to #326598 156 style = style.gsub(/rgb\s*\(\s*([0-9,\s]+)\s*\)/) do |match| 157 out = '#' 158 $1.split(',').each do |num| 159 if num.to_i < 16 160 out += '0' 161 end 162 out += num.to_i.to_s(16) # convert to hex 163 end 164 out 165 end 166 # Convert #AABBCC to #ABC, keep if preceed by a '=' 167 style = style.gsub(/([^\"'=\s])(\s*)#([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])/) do |match| 168 out = match 169 if ($3.downcase == $4.downcase) and ($5.downcase == $6.downcase) and ($7.downcase == $8.downcase) 170 out = $1 + '#' + $3.downcase + $5.downcase + $7.downcase 171 end 172 out 173 end 174 175 # At the moment we assume that colours only appear before ';' or '}' and 176 # after a ':', if there could be an occurence of a color before or after 177 # an other character, submit either a bug report or, better, a patch that 178 # enables Rainpress to take care of this. 179 180 # shorten several names to numbers 181 ## shorten white -> #fff 182 style = style.gsub(/:[\s]*white[\s]*;/, ':#fff;') 183 style = style.gsub(/:[\s]*white[\s]*\}/, ':#fff}') 184 ## shorten black -> #000 185 style = style.gsub(/:[\s]*black[\s]*;/, ':#000;') 186 style = style.gsub(/:[\s]*black[\s]*\}/, ':#000}') 187 # shotern several numbers to names 188 ## shorten #f00 or #ff0000 -> red 189 style = style.gsub(/:[\s]*#([fF]00|[fF]{2}0000);/, ':red;') 190 style = style.gsub(/:[\s]*#([fF]00|[fF]{2}0000)\}/, ':red}') 191 192 style 193 end 194 195 # Do miscellaneous compression methods on the style. 196 def do_misc(script) 197 # Replace 0(pt,px,em,%) with 0 but only when preceded by : or a white-space 198 script = script.gsub(/([\s:]+)(0)(px|em|%|in|cm|mm|pc|pt|ex)/) do |match| 199 match.gsub(/(px|em|%|in|cm|mm|pc|pt|ex)/,'') 200 end 201 # Replace :0 0 0 0(;|}) with :0(;|}) 202 script = script.gsub(':0 0 0 0;', ':0;') 203 script = script.gsub(':0 0 0 0}', ':0}') 204 # Replace :0 0 0(;|}) with :0(;|}) 205 script = script.gsub(':0 0 0;', ':0;') 206 script = script.gsub(':0 0 0}', ':0}') 207 # Replace :0 0(;|}) with :0(;|}) 208 script = script.gsub(':0 0}', ':0}') 209 script = script.gsub(':0 0;', ':0;') 210 # Replace background-position:0; with background-position:0 0; 211 script = script.gsub('background-position:0;', 'background-position:0 0;'); 212 # Replace 0.6 to .6, but only when preceded by : or a white-space 213 script = script.gsub(/[:\s]0+\.(\d+)/) do |match| 214 match.sub('0', '') # only first '0' !! 215 end 216 # Replace multiple ';' with a single ';' 217 script = script.gsub(/[;]+/, ';') 218 # Replace ;} with } 219 script = script.gsub(';}', '}') 220 # Replace background-color: with background: 221 script = script.gsub('background-color:', 'background:') 222 # Replace font-weight:normal; with 400 223 script = script.gsub(/font-weight[\s]*:[\s]*normal[\s]*;/,'font-weight:400;') 224 script = script.gsub(/font-weight[\s]*:[\s]*normal[\s]*\}/,'font-weight:400}') 225 script = script.gsub(/font[\s]*:[\s]*normal[\s;\}]*/) do |match| 226 match.sub('normal', '400') 227 end 228 # Replace font-weight:bold; with 700 229 script = script.gsub(/font-weight[\s]*:[\s]*bold[\s]*;/,'font-weight:700;') 230 script = script.gsub(/font-weight[\s]*:[\s]*bold[\s]*\}/,'font-weight:700}') 231 script = script.gsub(/font[\s]*:[\s]*bold[\s;\}]*/) do |match| 232 match.sub('bold', '700') 233 end 234 235 script 236 end 237 238 end 239 240 end
Generated using the rcov code coverage analysis tool for Ruby version 0.8.0.