oppi.li
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nekomimi.pet
1import { createHighlighter, HighlighterGeneric, BundledLanguage, BundledTheme } from 'shiki'
2import type { Element } from 'hast'
3
4let highlighter: HighlighterGeneric<BundledLanguage, BundledTheme> | null = null
5
6export async function getHighlighterInstance() {
7 if (!highlighter) {
8 highlighter = await createHighlighter({
9 themes: ['catppuccin-latte', 'catppuccin-mocha'],
10 langs: [
11 'javascript', 'typescript', 'python', 'java', 'rust',
12 'go', 'c', 'cpp', 'csharp', 'php', 'ruby', 'cobol',
13 'plaintext', 'txt', 'bash', 'nix'
14 ]
15 })
16 }
17 return highlighter
18}
19
20export async function highlightCode(code: string, lang: string) {
21 const highlighter = await getHighlighterInstance()
22
23 try {
24 return highlighter.codeToHtml(code, {
25 lang: lang,
26 themes: {
27 light: 'catppuccin-latte',
28 dark: 'catppuccin-mocha'
29 },
30 transformers: [
31 {
32 line(node: Element, line: number) {
33 node.properties['code-line'] = line
34 }
35 }
36 ]
37 })
38 } catch (error) {
39 console.warn(`Language "${lang}" not supported by Shiki, falling back to plaintext`)
40 return highlighter.codeToHtml(code, {
41 lang: 'txt',
42 themes: {
43 light: 'catppuccin-latte',
44 dark: 'catppuccin-mocha'
45 }
46 })
47 }
48}