56 lines
1.6 KiB
JavaScript
56 lines
1.6 KiB
JavaScript
const visit = require('unist-util-visit');
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const YAML = require('js-yaml');
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const unified = require('unified');
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const markdown = require('remark-parse');
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const remark2rehype = require('remark-rehype');
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const html = require('rehype-stringify');
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const raw = require('rehype-raw');
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const processor = unified()
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.use(markdown)
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.use(remark2rehype, { allowDangerousHTML: true })
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.use(raw)
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.use(html);
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function mdToHTML(str) {
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return processor.processSync(str).toString();
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}
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function plugin() {
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return transformer;
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function transformer(tree, file) {
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visit(tree, 'code', visitor);
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function visitor(node) {
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const { lang, value } = node;
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if (lang === 'yml') {
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const tests = YAML.load(value);
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if (tests.question) {
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// mdToHTML can not parse numbers. If an answer is a number
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// (i.e. 5, not '5') it has to be converted.
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tests.question.answers = tests.question.answers.map(answer =>
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mdToHTML(answer.toString())
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);
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tests.question.text = mdToHTML(tests.question.text);
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}
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// since tests are overloaded (they're both a list of projects and
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// actual tests), it's necessary to check which they are:
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if (tests.tests && tests.tests[0] && tests.tests[0].text) {
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tests.tests = tests.tests.map(({ text, testString }) => ({
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text: mdToHTML(text),
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testString
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}));
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}
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file.data = {
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...file.data,
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...tests
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};
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}
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}
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}
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}
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module.exports = plugin;
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module.exports.mdToHTML = mdToHTML;
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