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/**
* Copyright 2020 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
const markdown = require('markdown-it');
const uslug = require('uslug');
const anchor = require('markdown-it-anchor');
/** @type {anchor.AnchorOptions} */
const anchorOptions = {
slugify: s => uslug(s),
level: 2,
permalink: anchor.permalink.ariaHidden({
space: true,
placement: 'before',
symbol: '#',
class: 'heading-link',
}),
};
const md = markdown({
html: true,
})
// Let folks author definition lists using markdown syntax.
.use(require('markdown-it-deflist'))
// Let folks customize markdown output with attributes (id, class, data-*)
.use(require('markdown-it-attrs'), {
leftDelimiter: '{:',
rightDelimiter: '}',
allowedAttributes: ['id', 'class', /^data-.*$/],
})
// Automatically add anchors to headings
.use(anchor, anchorOptions)
// Disable indented code blocks.
// We only support fenced code blocks.
.disable('code');
module.exports = md;