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35 lines
745 B
35 lines
745 B
const { getRoot } = require('../utils');
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/**
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* @return {Function} PostHTML plugin
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*/
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function extractNamespacesToRoot() {
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return (tree) => {
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const namespaces = {};
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tree.match({ tag: /.*/ }, (node) => {
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const attrs = node.attrs || {};
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Object.keys(attrs).forEach((attr) => {
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if (attr.startsWith('xmlns')) {
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if (attr in namespaces === false) {
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namespaces[attr] = attrs[attr];
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}
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delete node.attrs[attr];
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}
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});
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return node;
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});
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const root = getRoot(tree);
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root.attrs = root.attrs || {};
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Object.keys(namespaces).forEach(name => root.attrs[name] = namespaces[name]);
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return tree;
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};
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}
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module.exports = extractNamespacesToRoot;
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