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feat: hljs syntax highlighting & nits

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This commit is contained in:
endiliey 2018-08-26 17:06:16 +08:00
parent 0058b20d9e
commit ea37e54477
8 changed files with 44 additions and 52 deletions
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22
lib/core/components/Markdown/highlight.js Normal file
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@ -0,0 +1,22 @@
const hljs = require('highlight.js');
const chalk = require('chalk');
const escapeHtml = require('escape-html');
export default (str, rawLang) => {
if (rawLang === 'text') {
return escapeHtml(str);
}
const lang = rawLang.toLowerCase();
try {
if (hljs.getLanguage(lang)) {
return hljs.highlight(lang, str).value;
}
} catch (e) {
console.error(
chalk.yellow(
`Highlight.js syntax highlighting for language "${lang}" is not supported.`
)
);
}
return hljs.highlightAuto(str).value;
};

46
lib/core/components/Markdown/index.js
View file

@ -1,9 +1,8 @@
/* eslint-disable react/no-danger */
/* eslint-disable */
import React from 'react';
import Markdown from 'remarkable';
import hljs from 'highlight.js';
import prismjs from 'prismjs';
import highlight from './highlight';
import anchors from './anchors';
class MarkdownBlock extends React.Component {
@ -36,46 +35,7 @@ class MarkdownBlock extends React.Component {
const {siteConfig} = this.props;
const md = new Markdown({
langPrefix: 'hljs css language-',
highlight(str, reqLang) {
const lang =
reqLang || (siteConfig.highlight && siteConfig.highlight.defaultLang);
if (lang === 'text') {
return str;
}
if (lang) {
try {
if (
siteConfig.usePrism === true ||
(siteConfig.usePrism &&
siteConfig.usePrism.length > 0 &&
siteConfig.usePrism.indexOf(lang) !== -1)
) {
try {
const language = alias[lang] || lang;
// Currently people using prismjs on Node have to individually require()
// every single language (https://github.com/PrismJS/prism/issues/593)
require(`prismjs/components/prism-${language}.min`); // eslint-disable-line
return prismjs.highlight(str, prismjs.languages[language]);
} catch (err) {
console.error(err);
}
}
if (hljs.getLanguage(lang)) {
return hljs.highlight(lang, str).value;
}
} catch (err) {
console.error(err);
}
}
try {
return hljs.highlightAuto(str).value;
} catch (err) {
console.error(err);
}
return '';
},
highlight: highlight,
html: true,
linkify: true
});