32 lines
897 B
JavaScript
32 lines
897 B
JavaScript
const visit = require('unist-util-visit');
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const is = require('hast-util-is-element');
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const source = require('unist-util-source');
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const toString = require('hast-util-to-string');
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const filter = require('unist-util-filter');
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module.exports = function h1CheckerPostProcessor() {
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return (ast, file) => {
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let h1s = [];
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visit(ast, node => {
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if (is(node, 'h1')) {
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h1s.push(node);
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file.title = getText(node);
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}
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});
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if (h1s.length > 1) {
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const h1Src = h1s.map(node => source(node, file)).join(', ');
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file.fail(`More than one h1 found [${h1Src}]`);
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}
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};
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};
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function getText(h1) {
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// Remove the aria-hidden anchor from the h1 node
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const cleaned = filter(h1, node => !(
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is(node, 'a') && node.properties &&
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(node.properties.ariaHidden === 'true' || node.properties['aria-hidden'] === 'true')
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));
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return toString(cleaned);
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} |