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added minify overlays and prefwindow
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/** | ||
* cssmin.js | ||
* Author: Stoyan Stefanov - http://phpied.com/ | ||
* This is a JavaScript port of the CSS minification tool | ||
* distributed with YUICompressor, itself a port | ||
* of the cssmin utility by Isaac Schlueter - http://foohack.com/ | ||
* Permission is hereby granted to use the JavaScript version under the same | ||
* conditions as the YUICompressor (original YUICompressor note below). | ||
*/ | ||
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/* | ||
* YUI Compressor | ||
* Author: Julien Lecomte - http://www.julienlecomte.net/ | ||
* Copyright (c) 2009 Yahoo! Inc. All rights reserved. | ||
* The copyrights embodied in the content of this file are licensed | ||
* by Yahoo! Inc. under the BSD (revised) open source license. | ||
*/ | ||
( function() { | ||
var cssmin = function (css, linebreakpos) { | ||
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var startIndex = 0, | ||
endIndex = 0, | ||
iemac = false, | ||
preserve = false, | ||
i = 0, max = 0, | ||
preservedTokens = [], | ||
token = ''; | ||
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// preserve strings so their content doesn't get accidentally minified | ||
css = css.replace(/("([^\\"]|\\.|\\)*")|('([^\\']|\\.|\\)*')/g, function(match) { | ||
var quote = match[0]; | ||
preservedTokens.push(match.slice(1, -1)); | ||
return quote + "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___" + quote; | ||
}); | ||
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// Remove all comment blocks... | ||
while ((startIndex = css.indexOf("/*", startIndex)) >= 0) { | ||
preserve = css.length > startIndex + 2 && css[startIndex + 2] === '!'; | ||
endIndex = css.indexOf("*/", startIndex + 2); | ||
if (endIndex < 0) { | ||
if (!preserve) { | ||
css = css.slice(0, startIndex); | ||
} | ||
} else if (endIndex >= startIndex + 2) { | ||
if (css[endIndex - 1] === '\\') { | ||
// Looks like a comment to hide rules from IE Mac. | ||
// Leave this comment, and the following one, but shorten them | ||
css = css.slice(0, startIndex) + "/*\\*/" + css.slice(endIndex + 2); | ||
startIndex += 5; | ||
iemac = true; | ||
} else if (iemac && !preserve) { | ||
css = css.slice(0, startIndex) + "/**/" + css.slice(endIndex + 2); | ||
startIndex += 4; | ||
iemac = false; | ||
} else if (!preserve) { | ||
css = css.slice(0, startIndex) + css.slice(endIndex + 2); | ||
} else { | ||
// preserve | ||
token = css.slice(startIndex+3, endIndex); // 3 is "/*!".length | ||
preservedTokens.push(token); | ||
css = css.slice(0, startIndex+2) + "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___" + css.slice(endIndex); | ||
if (iemac) iemac = false; | ||
startIndex += 2; | ||
} | ||
} | ||
} | ||
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// Normalize all whitespace strings to single spaces. Easier to work with that way. | ||
css = css.replace(/\s+/g, " "); | ||
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// Remove the spaces before the things that should not have spaces before them. | ||
// But, be careful not to turn "p :link {...}" into "p:link{...}" | ||
// Swap out any pseudo-class colons with the token, and then swap back. | ||
css = css.replace(/(^|\})(([^\{:])+:)+([^\{]*\{)/g, function(m) { | ||
return m.replace(":", "___YUICSSMIN_PSEUDOCLASSCOLON___"); | ||
}); | ||
css = css.replace(/\s+([!{};:>+\(\)\],])/g, '$1'); | ||
css = css.replace(/___YUICSSMIN_PSEUDOCLASSCOLON___/g, ":"); | ||
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// retain space for special IE6 cases | ||
css = css.replace(/:first-(line|letter)({|,)/g, ":first-$1 $2"); | ||
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// no space after the end of a preserved comment | ||
css = css.replace(/\*\/ /g, '*/'); | ||
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// If there is a @charset, then only allow one, and push to the top of the file. | ||
css = css.replace(/^(.*)(@charset "[^"]*";)/gi, '$2$1'); | ||
css = css.replace(/^(\s*@charset [^;]+;\s*)+/gi, '$1'); | ||
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// Put the space back in some cases, to support stuff like | ||
// @media screen and (-webkit-min-device-pixel-ratio:0){ | ||
css = css.replace(/\band\(/gi, "and ("); | ||
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// Remove the spaces after the things that should not have spaces after them. | ||
css = css.replace(/([!{}:;>+\(\[,])\s+/g, '$1'); | ||
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// remove unnecessary semicolons | ||
css = css.replace(/;+}/g, "}"); | ||
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// Replace 0(px,em,%) with 0. | ||
css = css.replace(/([\s:])(0)(px|em|%|in|cm|mm|pc|pt|ex)/gi, "$1$2"); | ||
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// Replace 0 0 0 0; with 0. | ||
css = css.replace(/:0 0 0 0;/g, ":0;"); | ||
css = css.replace(/:0 0 0;/g, ":0;"); | ||
css = css.replace(/:0 0;/g, ":0;"); | ||
// Replace background-position:0; with background-position:0 0; | ||
css = css.replace(/background-position:0;/gi, "background-position:0 0;"); | ||
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// Replace 0.6 to .6, but only when preceded by : or a white-space | ||
css = css.replace(/(:|\s)0+\.(\d+)/g, "$1.$2"); | ||
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// Shorten colors from rgb(51,102,153) to #336699 | ||
// This makes it more likely that it'll get further compressed in the next step. | ||
css = css.replace(/rgb\s*\(\s*([0-9,\s]+)\s*\)/gi, function(){ | ||
var rgbcolors = arguments[1].split(','); | ||
for (var i = 0; i < rgbcolors.length; i++) { | ||
rgbcolors[i] = parseInt(rgbcolors[i], 10).toString(16); | ||
if (rgbcolors[i].length === 1) { | ||
rgbcolors[i] = '0' + rgbcolors[i]; | ||
} | ||
} | ||
return '#' + rgbcolors.join(''); | ||
}); | ||
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// Shorten colors from #AABBCC to #ABC. Note that we want to make sure | ||
// the color is not preceded by either ", " or =. Indeed, the property | ||
// filter: chroma(color="#FFFFFF"); | ||
// would become | ||
// filter: chroma(color="#FFF"); | ||
// which makes the filter break in IE. | ||
css = css.replace(/([^"'=\s])(\s*)#([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])/gi, function(){ | ||
var group = arguments; | ||
if ( | ||
group[3].toLowerCase() === group[4].toLowerCase() && | ||
group[5].toLowerCase() === group[6].toLowerCase() && | ||
group[7].toLowerCase() === group[8].toLowerCase() | ||
) { | ||
return (group[1] + group[2] + '#' + group[3] + group[5] + group[7]).toLowerCase(); | ||
} else { | ||
return group[0].toLowerCase(); | ||
} | ||
}); | ||
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// Remove empty rules. | ||
css = css.replace(/[^\};\{\/]+\{\}/g, ""); | ||
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if (linebreakpos >= 0) { | ||
// Some source control tools don't like it when files containing lines longer | ||
// than, say 8000 characters, are checked in. The linebreak option is used in | ||
// that case to split long lines after a specific column. | ||
startIndex = 0; | ||
i = 0; | ||
while (i < css.length) { | ||
if (css[i++] === '}' && i - startIndex > linebreakpos) { | ||
css = css.slice(0, i) + '\n' + css.slice(i); | ||
startIndex = i; | ||
} | ||
} | ||
} | ||
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// Replace multiple semi-colons in a row by a single one | ||
// See SF bug #1980989 | ||
css = css.replace(/;;+/g, ";"); | ||
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// restore preserved comments and strings | ||
for(i = 0, max = preservedTokens.length; i < max; i++) { | ||
css = css.replace("___YUICSSMIN_PRESERVED_TOKEN_" + i + "___", preservedTokens[i]); | ||
} | ||
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// Trim the final string (for any leading or trailing white spaces) | ||
css = css.replace(/^\s+|\s+$/g, ""); | ||
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return css; | ||
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}; | ||
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//Node.js | ||
if ( typeof module === "object" && typeof exports === "object" && module.exports === exports ) { | ||
exports.cssmin = cssmin; | ||
} | ||
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//web browser | ||
else if ( typeof window === "object" ) { | ||
if ( typeof YAHOO !== "object" ) { | ||
YAHOO = { compressor: { cssmin:cssmin } }; | ||
} | ||
else if ( typeof YAHOO.compressor !== "object" ) { | ||
YAHOO.compressor = { cssmin:cssmin }; | ||
} | ||
else { | ||
YAHOO.compressor.cssmin = cssmin; | ||
} | ||
} | ||
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})(); |
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