7 examples of 'normalize css cdn' in JavaScript

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function cleanCss(css) {
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    this.cacheable();
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    var loader = this;
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    var callback = this.async();
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    new CleanCSS().minify(css, function (err, minified) {
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        if (err) {
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            if (Array.isArray(err) && (err[0] !== null)) {
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                return callback(err[0]);
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            } else {
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                return callback(err);
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            }
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        }
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        var warnings;
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        if (((warnings = minified.warnings) !== null ? warnings.length : void 0) !== 0) {
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            warnings.forEach(function (msg) {
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                loader.emitWarning(msg.toString());
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            });
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        }
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        return callback(null, minified.styles, minified.sourceMap);
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    });
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};

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export function hasRelativeUrls(css: string) {
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  CSS_URL_REGEXP.lastIndex = 0;
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  return CSS_URL_REGEXP.test(css);
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}

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function compress(css){
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    return css.replace(/\s+|\n/g, " ") //压缩空格和换行
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                   .replace(/\/\*(\n|.)*?\*\//g, "") //去掉/**/注释
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                   .replace(/\s*{\s*/g, "{") //去掉{ }括号两旁的空格
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                   .replace(/\s*}\s*/g, "}")
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                   .replace(/\s*:\s*/g, ":") //去掉 : 冒号两旁的空格
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                   .replace(/\s*;\s*/g, ";") //去掉 ; 分号两旁的空格
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                   .replace(/\s*,\s*/g, ","); //去掉 , 逗号两旁的空格
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}

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function relativizeCSS (source, relativeRoot) {
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  return source.replace(/(url\(['"]?)\/(?!\/)/g, "$1"+relativeRoot);
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}

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function fixupCSSUrls(address, css) {
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    if (typeof css !== 'string') {
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        throw new Error("Failed loading required CSS file: " + address);
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    }
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    return css.replace(cssUrlMatcher, function (_, p1) {
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        var quote = p1.charAt(0);
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        if (quote === '\'' || quote === '"') {
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            p1 = p1.substr(1, p1.length - 2);
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        }
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        return 'url(\'' + relativeToFile(p1, address) + '\')';
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    });
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}

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function minifyCSSPackage(source) { //(String)->String
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    return cleanCss.process(source);
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}

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function fixPostcssUrl(url) {
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  return url.replace(/^http:\/+/, 'http://').replace(/^file:\/*/, 'file:///');
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}