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22 lines
571 B
22 lines
571 B
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var cssHelpers = require('./css-helpers'); |
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var selectorUniqueMatches = require('./selector-unique-matches'); |
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/** |
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* number sign followed by an identifier |
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* @type {RegExp} |
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*/ |
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var rIdInSelector = new RegExp('#(' + cssHelpers.rIdentifier.source + ')', |
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'gm'); |
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/** |
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* Extracts ids from CSS rules (as AST) |
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* @param {Object} rules |
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* @return {string[]} list of ids in those rules |
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*/ |
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function extractIdsFromRules(rules) { |
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var ids = selectorUniqueMatches(rules, rIdInSelector); |
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return ids.map(cssHelpers.unescapeIdentifier); |
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} |
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module.exports = extractIdsFromRules;
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