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// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
const TextFormatting = require('./text_formatting.jsx');
const Utils = require('./utils.jsx');
const marked = require('marked');
class MattermostInlineLexer extends marked.InlineLexer {
constructor(links, options) {
super(links, options);
// modified version of the regex that doesn't break up words in snake_case
// the original is /^[\s\S]+?(?=[\\<!\[_*`]| {2,}\n|$)/
this.rules.text = /^[\s\S]+?(?=__|\b_|[\\<!\[*`]| {2,}\n|$)/;
}
}
class MattermostParser extends marked.Parser {
parse(src) {
this.inline = new MattermostInlineLexer(src.links, this.options, this.renderer);
this.tokens = src.reverse();
var out = '';
while (this.next()) {
out += this.tok();
}
return out;
}
}
class MattermostMarkdownRenderer extends marked.Renderer {
constructor(options, formattingOptions = {}) {
super(options);
this.heading = this.heading.bind(this);
this.text = this.text.bind(this);
this.formattingOptions = formattingOptions;
}
br() {
if (this.formattingOptions.singleline) {
return ' ';
}
return super.br();
}
heading(text, level, raw) {
const id = `${this.options.headerPrefix}${raw.toLowerCase().replace(/[^\w]+/g, '-')}`;
return `<h${level} id="${id}" class="markdown__heading">${text}</h${level}>`;
}
link(href, title, text) {
let outHref = href;
if (outHref.lastIndexOf('http', 0) !== 0) {
outHref = `http://${outHref}`;
}
let output = '<a class="theme markdown__link" href="' + outHref + '"';
if (title) {
output += ' title="' + title + '"';
}
if (outHref.lastIndexOf(Utils.getTeamURLFromAddressBar(), 0) === 0) {
output += '>';
} else {
output += ' target="_blank">';
}
output += text + '</a>';
return output;
}
paragraph(text) {
if (this.formattingOptions.singleline) {
return `<p class="markdown__paragraph-inline">${text}</p>`;
}
return super.paragraph(text);
}
table(header, body) {
return `<table class="markdown__table"><thead>${header}</thead><tbody>${body}</tbody></table>`;
}
text(text) {
return TextFormatting.doFormatText(text, this.formattingOptions);
}
}
export function format(text, options) {
const markdownOptions = {
renderer: new MattermostMarkdownRenderer(null, options),
sanitize: true
};
const tokens = marked.lexer(text, markdownOptions);
return new MattermostParser(markdownOptions).parse(tokens);
}
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