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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | 1x 649x 486x 262x 20x 262x 150x 150x 150x 58x 92x 92x 792x 486x 792x 649x 644x | /* eslint-disable no-param-reassign */ import { isElement, isParentNode } from './parse5-utils'; const defaultIgnoresTags = ['style', 'script', '#comment']; function filterNode(node, ignoredTags) { return !defaultIgnoresTags.includes(node.nodeName) && !ignoredTags.includes(node.nodeName); } function sortAttributes(attrs) { return attrs // Sort attributes .map((attr) => { if (attr.name === 'class') { attr.value = attr.value.trim().split(/\s+/).sort().join(' '); } return attr; }) // Sort classes .sort((attrA, attrB) => { const a = attrA.name.toLowerCase(); const b = attrB.name.toLowerCase(); if (a < b) { return -1; } Eif (a > b) { return 1; } return 0; }); } /** * Normalized AST tree, normlaizing whitespace, attribute + class order etc. Not a pure function, * mutates input. * @param {ASTNode} node * @param {string[]} ignoredTags */ export function normalizeAST(node, ignoredTags = []) { if (isElement(node)) { node.attrs = sortAttributes(node.attrs); } if (isParentNode(node)) { node.childNodes = node.childNodes.filter(child => filterNode(child, ignoredTags)); node.childNodes.forEach(child => normalizeAST(child, ignoredTags)); } } |