33 lines
823 B
TypeScript
33 lines
823 B
TypeScript
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/**
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* Extract runnable code blocks (HTML, JS, CSS) from markdown text.
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*/
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export interface CodeBlock {
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language: string
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code: string
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}
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const RUNNABLE_LANGS = new Set(['html', 'javascript', 'js', 'css'])
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const FENCED_CODE_RE = /```(html|javascript|js|css)\n([\s\S]*?)```/gi
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export function extractRunnableCodeBlocks(text: string): CodeBlock[] {
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const results: CodeBlock[] = []
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let m: RegExpExecArray | null
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const re = new RegExp(FENCED_CODE_RE.source, FENCED_CODE_RE.flags)
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while ((m = re.exec(text)) !== null) {
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const language = m[1].toLowerCase()
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const code = m[2].trim()
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if (RUNNABLE_LANGS.has(language) && code.length > 0) {
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results.push({ language, code })
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}
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}
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return results
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}
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export function hasRunnableCode(text: string): boolean {
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return FENCED_CODE_RE.test(text)
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}
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