1 files changed, 47 insertions, 0 deletions
diff --git a/node_modules/vuepress/lib/markdown/highlight.js b/node_modules/vuepress/lib/markdown/highlight.js
new file mode 100644
index 00000000..02d5e3ff
--- /dev/null
+++ b/node_modules/vuepress/lib/markdown/highlight.js
@@ -0,0 +1,47 @@
+const chalk = require('chalk')
+const prism = require('prismjs')
+const loadLanguages = require('prismjs/components/index')
+const escapeHtml = require('escape-html')
+const logger = require('../util/logger')
+
+// required to make embedded highlighting work...
+loadLanguages(['markup', 'css', 'javascript'])
+
+function wrap (code, lang) {
+  if (lang === 'text') {
+    code = escapeHtml(code)
+  }
+  return `<pre v-pre class="language-${lang}"><code>${code}</code></pre>`
+}
+
+module.exports = (str, lang) => {
+  if (!lang) {
+    return wrap(str, 'text')
+  }
+  lang = lang.toLowerCase()
+  const rawLang = lang
+  if (lang === 'vue' || lang === 'html') {
+    lang = 'markup'
+  }
+  if (lang === 'md') {
+    lang = 'markdown'
+  }
+  if (lang === 'ts') {
+    lang = 'typescript'
+  }
+  if (lang === 'py') {
+    lang = 'python'
+  }
+  if (!prism.languages[lang]) {
+    try {
+      loadLanguages([lang])
+    } catch (e) {
+      logger.warn(chalk.yellow(`[vuepress] Syntax highlight for language "${lang}" is not supported.`))
+    }
+  }
+  if (prism.languages[lang]) {
+    const code = prism.highlight(str, prism.languages[lang], lang)
+    return wrap(code, rawLang)
+  }
+  return wrap(str, 'text')
+}