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Versions: 23
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Stored size: 1.5 KB
Contents
'use strict';
const getUnitFromValueNode = require('./getUnitFromValueNode');
const isStandardSyntaxValue = require('./isStandardSyntaxValue');
const isVariable = require('./isVariable');
const keywordSets = require('../reference/keywordSets');
const postcssValueParser = require('postcss-value-parser');
/** @typedef {import('postcss-value-parser').Node} Node */
/**
* Get the font-families within a `font` shorthand property value.
*
* @param {string} value
*
* @returns {Node[]}
*/
module.exports = function findAnimationName(value) {
/** @type {Node[]} */
const animationNames = [];
const valueNodes = postcssValueParser(value);
// Handle `inherit`, `initial` and etc
if (
valueNodes.nodes.length === 1 &&
keywordSets.basicKeywords.has(valueNodes.nodes[0].value.toLowerCase())
) {
return [valueNodes.nodes[0]];
}
valueNodes.walk((valueNode) => {
if (valueNode.type === 'function') {
return false;
}
if (valueNode.type !== 'word') {
return;
}
const valueLowerCase = valueNode.value.toLowerCase();
// Ignore non standard syntax
if (!isStandardSyntaxValue(valueLowerCase)) {
return;
}
// Ignore variables
if (isVariable(valueLowerCase)) {
return;
}
// Ignore keywords for other font parts
if (keywordSets.animationShorthandKeywords.has(valueLowerCase)) {
return;
}
// Ignore numbers with units
const unit = getUnitFromValueNode(valueNode);
if (unit || unit === '') {
return;
}
animationNames.push(valueNode);
});
return animationNames;
};
Version data entries
23 entries across 23 versions & 1 rubygems