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30 lines
627 B
JavaScript
30 lines
627 B
JavaScript
import { keyframeSelectorKeywords, namedTimelineRangeKeywords } from '../reference/keywords.mjs';
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const HAS_TIMELINE_RANGE = new RegExp(
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`^(?:${[...namedTimelineRangeKeywords.values()].join('|')})\\s+(?:\\d+|\\d*\\.\\d+)%$`,
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'i',
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);
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/**
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* Check whether a string is a keyframe selector.
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*
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* @param {string} selector
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* @returns {boolean}
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*/
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export default function isKeyframeSelector(selector) {
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if (keyframeSelectorKeywords.has(selector)) {
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return true;
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}
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// Percentages
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if (/^(?:\d+|\d*\.\d+)%$/.test(selector)) {
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return true;
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}
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if (HAS_TIMELINE_RANGE.test(selector)) {
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return true;
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}
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return false;
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}
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