postcss-encode-background-svgs
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PostCSS plugin to urlencode background svgs
174 lines (173 loc) • 5.57 kB
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<a href="index.html">All files</a> detect-svg.js
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37</td><td class="line-coverage quiet"><span class="cline-any cline-neutral"> </span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* Gets SVG element from CSS background-image value
* @return String
*/
module.exports = {
/**
* Use Regex to find the <svg /></svg> segment of the URL
* @param String svgURL - string of background-image value
* @return String
*/
getSVGElement(svgURL) {
// Regex for an un-encoded SVG
const svgRegex = /url\((?:\'|\")data:image\/svg\+xml(?:,|;utf8,|;charset=utf-8,)\s?(<svg.*<\/svg>)(?:\'|\")\)(.*)/g;
// Regex for an encoded SVG
const svgRegexEncoded = /url\((?:\'|\")data:image\/svg\+xml(?:,|;utf8,|;charset=utf-8,)\s?(%3Csvg.*(?:\/%3E%3C\/svg%3E|%2F%3E%3C%2Fsvg%3E))(?:\'|\")\)(.*)/g;
// Execute our regex on the value passed in to this method
let match = svgRegex.exec(svgURL);
let matchEncoded = svgRegexEncoded.exec(svgURL);
// If our Regex matches
if (match !== null && match.length > 1 && match[1] !== 0 && match[2] !== 0) {
return {
svg: match[1],
shorthandRules: match[2],
svgAlreadyEncoded: false
};
} else if (matchEncoded !== null && matchEncoded.length > 1 && matchEncoded[1] !== 0 && matchEncoded[2] !== 0) {
return {
svg: matchEncoded[1],
shorthandRules: matchEncoded[2],
svgAlreadyEncoded: true
};
} else {
return null;
}
}
};
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