chore: 初始化项目仓库

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-31 21:27:39 +08:00
commit b7addb5c7a
50 changed files with 15964 additions and 0 deletions
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+/**
+ * Nuxt Content v3 (minimark) AST 工具函数
+ * 集中管理 body AST 的文本提取、标题提取、slugify 等操作
+ */
+
+// --- 文本提取 ---
+
+const SKIP_TAGS = new Set(['style', 'script', 'pre', 'code', 'head', 'meta', 'link'])
+
+export function extractTextFromAst(node: any): string {
+  if (!node) return ''
+  if (typeof node === 'string') return node
+  if (Array.isArray(node)) {
+    const tag = typeof node[0] === 'string' ? node[0] : ''
+    if (SKIP_TAGS.has(tag)) return ''
+    const start = typeof node[1] === 'object' && !Array.isArray(node[1]) && node[1] !== null ? 2 : 1
+    return node.slice(start).map(extractTextFromAst).join('')
+  }
+  if (typeof node === 'object') {
+    if (typeof node.value === 'string') return node.value
+    if (node.children) return extractTextFromAst(node.children)
+    if (node.value) return extractTextFromAst(node.value)
+  }
+  return ''
+}
+
+// --- 标题提取 ---
+
+export interface Heading {
+  id: string
+  text: string
+  level: number
+}
+
+function extractTextFromNode(node: any): string {
+  if (!node) return ''
+  if (typeof node === 'string') return node
+  if (Array.isArray(node)) return node.map(extractTextFromNode).join('')
+  if (typeof node === 'object') {
+    if (typeof node.value === 'string') return node.value
+    if (node.children) return extractTextFromNode(node.children)
+  }
+  return ''
+}
+
+export function extractHeadings(node: any, list: Heading[] = []): Heading[] {
+  if (!node) return list
+  if (Array.isArray(node)) {
+    if (typeof node[0] === 'string' && /^h[1-6]$/.test(node[0])) {
+      const level = Number(node[0].charAt(1))
+      const props = typeof node[1] === 'object' && !Array.isArray(node[1]) ? node[1] : {}
+      const childStart = typeof node[1] === 'object' && !Array.isArray(node[1]) ? 2 : 1
+      const text = node.slice(childStart).map(extractTextFromNode).join('').trim()
+      if (text) {
+        list.push({ id: props.id || slugify(text), text, level })
+      }
+    }
+    for (const child of node) {
+      if (Array.isArray(child) || (typeof child === 'object' && child !== null)) {
+        extractHeadings(child, list)
+      }
+    }
+    return list
+  }
+  if (typeof node === 'object') {
+    const tag = node.tag || node.type
+    if (tag && /^h[1-6]$/.test(tag)) {
+      const level = Number(tag.charAt(1))
+      const text = extractTextFromNode(node).trim()
+      if (text) {
+        list.push({ id: node.props?.id || slugify(text), text, level })
+      }
+    }
+    if (node.children) extractHeadings(node.children, list)
+    if (node.value) extractHeadings(node.value, list)
+    if (node.body) extractHeadings(node.body, list)
+  }
+  return list
+}
+
+// --- slugify ---
+
+export function slugify(text: string): string {
+  return text
+    .trim()
+    .toLowerCase()
+    .replace(/[\s　]+/g, '-')
+    .replace(/[^\p{L}\p{N}\-]/gu, '')
+    .replace(/-+/g, '-')
+    .replace(/^-|-$/g, '') || 'section'
+}
+
+// --- 去重（给 heading id 加后缀）---
+
+export function deduplicateIds(list: Heading[]): Heading[] {
+  const seen = new Map<string, number>()
+  for (const h of list) {
+    if (seen.has(h.id)) {
+      const n = (seen.get(h.id) || 1) + 1
+      seen.set(h.id, n)
+      h.id = `${h.id}-${n}`
+    } else {
+      seen.set(h.id, 1)
+    }
+  }
+  return list
+}
+
+// --- 从 body 提取所有标题（去重后）---
+
+export function getHeadingsFromBody(body: Record<string, any> | null | undefined): Heading[] {
+  if (!body) return []
+  const list: Heading[] = []
+  extractHeadings(body.value || body, list)
+  return deduplicateIds(list)
+}