Edit File: parseHslLegacy.js
import hueToDeg from '../util/hue.js'; import { hue, per, num_per, c } from '../util/regex.js'; /* hsl() regular expressions for legacy format Reference: https://drafts.csswg.org/css-color/#the-hsl-notation */ const hsl_old = new RegExp( `^hsla?\\(\\s*${hue}${c}${per}${c}${per}\\s*(?:,\\s*${num_per}\\s*)?\\)$` ); const parseHslLegacy = color => { let match = color.match(hsl_old); if (!match) return; let res = { mode: 'hsl' }; if (match[3] !== undefined) { res.h = +match[3]; } else if (match[1] !== undefined && match[2] !== undefined) { res.h = hueToDeg(match[1], match[2]); } if (match[4] !== undefined) { res.s = Math.min(Math.max(0, match[4] / 100), 1); } if (match[5] !== undefined) { res.l = Math.min(Math.max(0, match[5] / 100), 1); } if (match[6] !== undefined) { res.alpha = match[6] / 100; } else if (match[7] !== undefined) { res.alpha = +match[7]; } return res; }; export default parseHslLegacy;
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