1 //<script type="text/javascript">
4 * Author: Julien Lecomte <jlecomte@yahoo-inc.com>
5 * Copyright (c) 2007, Yahoo! Inc. All rights reserved.
6 * Code licensed under the BSD License:
7 * http://developer.yahoo.net/yui/license.txt
9 * This code is a port of Isaac Schlueter's cssmin utility.
11 * Usage: seed buildSDK/cssmini.js
16 File = imports.File.File;
17 GLib = imports.gi.GLib;
18 // let's see if this works..
19 // should be run from top level..
20 var pa = GLib.get_current_dir();
24 //println(pack(File.read(pa+'/css/basic-dialog.css')));
26 var lines = File.read(pa + '/css/roojs-debug.css').split(/\n/);
27 //@import url("reset-min.css");
29 lines.forEach(function(l) {
30 if (!l.match(/^@import/)) {
33 l = l.replace(/^[^"]+"([^"]+)".*/, '$1');
34 print("pack " + l + "\n");
35 out+=pack(File.read(pa+'/css/' + l)).replace('}', "}\n")+"\n";
38 File.write(pa+'/css/roojs.css', out);
41 print("written css/roojs.css");
56 function removeComments(str)
62 while ((si = str.indexOf("/*")) > -1) {
63 ei = str.indexOf("*/");
67 if (str.charAt(ei-1) == '\\') { // eg. /* \*/
70 // Looks like a comment to hide rules from IE Mac.
71 // Leave this comment, and the following one, alone...
74 r += str.substring(0, ei) ;
75 str = str.substring(ei);
81 r += str.substring(0, ei) ;
82 str = str.substring(ei+2);
86 r += str.substring(0, si) ;
87 str = str.substring(ei+2);
91 r += str.substring(0, 2);
92 str = str.substring(2);
100 istr = removeComments(istr);
101 //println("after comments remove: " + istr);
103 // Normalize all whitespace strings to single spaces. Easier to work with that way.
104 istr = istr.replace(/\s+/g, ' ');
106 // Make a pseudo class for the Box Model Hack ????
107 //css = css.replaceAll("\"\\\\\"}\\\\\"\"", "___PSEUDOCLASSBMH___");
108 istr = istr.replace(/"\\"\}\\"/g, "___PSEUDOCLASSBMH___");
110 // Remove the spaces before the things that should not have spaces before them.
111 // But, be careful not to turn "p :link {...}" into "p:link{...}"
112 // Swap out any pseudo-class colons with the token, and then swap back.
114 istr = istr.replace(/(^|\})(([^\{:])+:)+([^\{]*\{)/g, function(m) {
115 return m.replace(/:/g, "___PSEUDOCLASSCOLON___");
119 istr = istr.replace(/\s+([!{};:>+\(\)\],])/g, "$1");
120 istr = istr.replace(/___PSEUDOCLASSCOLON___/g, ":");
122 // Remove the spaces after the things that should not have spaces after them.
123 istr = istr.replace(/([!{}:;>+\(\[,])\s+/g, "$1");
125 // Add the semicolon where it's missing.
126 istr = istr.replace(/([^;\}])\}/g, "$1;}");
128 // Replace 0(px,em,%) with 0.
129 istr = istr.replace(/([\s:])(0)(px|em|%|in|cm|mm|pc|pt|ex)/g, "$1$2");
131 // Replace 0 0 0 0; with 0. (by this time, we have reduced spaces etc..
132 istr = istr.replace(/:0 0 0 0;/g, ":0;");
133 istr = istr.replace(/:0 0 0;/g, ":0;");
134 istr = istr.replace(/:0 0;/g, ":0;");
135 // Replace background-position:0; with background-position:0 0;
136 istr = istr.replace(/background-position:0;/g, "background-position:0 0;");
138 // Replace 0.6 to .6, but only when preceded by : or a white-space
139 istr = istr.replace(/(:|\s)0+\.(\d+)/g, "$1.$2");
141 // Shorten colors from rgb(51,102,153) to #336699
142 // This makes it more likely that it'll get further compressed in the next step.
144 istr = istr.replace(/rgb\s*\(\s*([0-9,\s]+)\s*\)/g, function(m, c)
146 var rgb = c.split(',');
148 for (var i = 0; i < rgb.length; i++) {
149 var val = parseInt(rgb[i]);
153 hx+=val.toString(16);
161 // Shorten colors from #AABBCC to #ABC. Note that we want to make sure
162 // the color is not preceded by either ", " or =. Indeed, the property
163 // filter: chroma(color="#FFFFFF");
165 // filter: chroma(color="#FFF");
166 // which makes the filter break in IE.
168 istr = istr.replace(/([^"'=\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])/g,
169 function(m, g1,g2,g3,g4,g5,g6,g7,g8) {
173 if (g3.toLowerCase() == g4.toLowerCase() &&
174 g5.toLowerCase() == g6.toLowerCase() &&
175 g7.toLowerCase() == g8.toLowerCase()) {
177 return g1+g2+'#' + g3+g5+g7;
185 // Remove empty rules.
186 istr = istr.replace(/[^\}]+\{;\}/g, "");
188 if (linebreakpos >= 0) {
189 // Some source control tools don't like it when files containing lines longer
190 // than, say 8000 characters, are checked in. The linebreak option is used in
191 // that case to split long lines after a specific column.
193 int linestartpos = 0;
194 sb = new StringBuffer(css);
195 while (i < sb.length()) {
196 char c = sb.charAt(i++);
197 if (c == '}' && i - linestartpos > linebreakpos) {
206 // Replace the pseudo class for the Box Model Hack
207 istr = istr.replace(/___PSEUDOCLASSBMH___/g, "\"\\\\\"}\\\\\"\"");
209 // Trim the final string (for any leading or trailing white spaces)
210 istr = istr.replace(/^\s+/g, '');
211 istr = istr.replace(/\s+$/g, '');
214 // Write the output...