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90 lines
2.2 KiB
JavaScript
90 lines
2.2 KiB
JavaScript
6 years ago
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function removeWhitespace(match, value) {
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return '[' + value.replace(/ /g, '') + ']';
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}
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function selectorSorter(s1, s2) {
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return s1[0] > s2[0] ? 1 : -1;
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}
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function whitespaceReplacements(_, p1, p2, p3) {
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if (p1 && p2 && p3.length)
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return p1 + p2 + ' ';
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else if (p1 && p2)
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return p1 + p2;
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else
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return p2;
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}
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var CleanUp = {
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selectors: function (selectors, removeUnsupported, adjacentSpace) {
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var list = [];
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var repeated = [];
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for (var i = 0, l = selectors.length; i < l; i++) {
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var selector = selectors[i];
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var reduced = selector[0]
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.replace(/\s+/g, ' ')
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.replace(/ ?, ?/g, ',')
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.replace(/\s*(\\)?([>+~])(\s*)/g, whitespaceReplacements)
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.trim();
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if (adjacentSpace && reduced.indexOf('nav') > 0)
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reduced = reduced.replace(/\+nav(\S|$)/, '+ nav$1');
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if (removeUnsupported && (reduced.indexOf('*+html ') != -1 || reduced.indexOf('*:first-child+html ') != -1))
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continue;
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if (reduced.indexOf('*') > -1) {
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reduced = reduced
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.replace(/\*([:#\.\[])/g, '$1')
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.replace(/^(\:first\-child)?\+html/, '*$1+html');
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}
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if (reduced.indexOf('[') > -1)
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reduced = reduced.replace(/\[([^\]]+)\]/g, removeWhitespace);
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if (repeated.indexOf(reduced) == -1) {
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selector[0] = reduced;
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repeated.push(reduced);
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list.push(selector);
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}
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}
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return list.sort(selectorSorter);
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},
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selectorDuplicates: function (selectors) {
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var list = [];
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var repeated = [];
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for (var i = 0, l = selectors.length; i < l; i++) {
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var selector = selectors[i];
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if (repeated.indexOf(selector[0]) == -1) {
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repeated.push(selector[0]);
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list.push(selector);
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}
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}
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return list.sort(selectorSorter);
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},
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block: function (values, spaceAfterClosingBrace) {
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values[0] = values[0]
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.replace(/\s+/g, ' ')
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.replace(/(,|:|\() /g, '$1')
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.replace(/ \)/g, ')');
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if (!spaceAfterClosingBrace)
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values[0] = values[0].replace(/\) /g, ')');
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},
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atRule: function (values) {
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values[0] = values[0]
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.replace(/\s+/g, ' ')
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.trim();
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}
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};
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module.exports = CleanUp;
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