33 lines
844 B
JavaScript
33 lines
844 B
JavaScript
'use strict';
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/**
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* Check whether a combinator is standard
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*
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* @param {import('postcss-selector-parser').Combinator} node postcss-selector-parser node (of type combinator)
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* @return {boolean} If `true`, the combinator is standard
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*/
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module.exports = function(node) {
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// Ghost descendant combinators around reference combinators like `/deep/`
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// postcss-selector-parser parsers references combinators as tag selectors surrounded
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// by descendant combinators
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const prev = node.prev();
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const next = node.next();
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if (
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(prev &&
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prev.type === 'tag' &&
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typeof prev.value === 'string' &&
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prev.value.startsWith('/') &&
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prev.value.endsWith('/')) ||
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(next &&
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next.type === 'tag' &&
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typeof next.value === 'string' &&
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next.value.startsWith('/') &&
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next.value.endsWith('/'))
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) {
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return false;
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}
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return true;
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};
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