fix: Fix codeBlockParames issue.

Author: jaywcjlove

src/index.ts

@@ -67,7 +67,7 @@ const rehypeAttrs: Plugin<[RehypeAttrsOptions?], Root> = (options = {}) => {
       }
 
       if (/^(em|strong|b|a|i|p|pre|kbd|blockquote|h(1|2|3|4|5|6)|code|table|img|del|ul|ol)$/.test(node.tagName) && parent && Array.isArray(parent.children) && typeof index === 'number') {
-        const child = nextChild(parent.children, index)
+        const child = nextChild(parent.children, index, '', codeBlockParames)
         if (child) {
           const attr = getCommentObject(child as Comment)
           if (Object.keys(attr).length > 0) {

src/utils.ts

@@ -22,8 +22,9 @@ export const prevChild = (data: Literal[] = [], index: number): Comment | undefi
   return;
 }
 
-export const nextChild = (data: RootContent[] | ElementContent[] = [], index: number, tagName?: string): ElementContent | undefined => {
+export const nextChild = (data: RootContent[] | ElementContent[] = [], index: number, tagName?: string, codeBlockParames?: boolean): ElementContent | undefined => {
   let i = index;
+
   while (i < data.length) {
     i++;
     if (tagName) {
@@ -33,12 +34,17 @@ export const nextChild = (data: RootContent[] | ElementContent[] = [], index: nu
       }
     } else {
       const element = data[i] as ElementContent & Literal;
-      if (!element || (element.type !== 'text' && (element.type as string) !== 'comment') || (element.type === 'text' && (element.value as string).replace(/(\n|\s)/g, '') !== '')) return;
-      if ((element.type as string) === 'comment') {
+      if (!element || element.type === 'element') return;
+      if (element.type === 'text' && element.value.replace(/(\n|\s)/g, '') !== '') return;
+      if (element?.type === 'comment') {
         if (!/^rehype:/.test(element.value as string)) return;
-        const nextNode = nextChild(data, i, 'pre')
-        if (nextNode) return;
-        return element;
+        if (codeBlockParames) {
+          const nextNode = nextChild(data, i, 'pre', codeBlockParames)
+          if (nextNode) return;
+          return element;
+        } else {
+          return element;
+        }
       }
     }
   }

test/index.test.ts

@@ -76,6 +76,23 @@ describe('rehype-attr function test case', () => {
 })
 
 describe('rehype-attr test case', () => {
+  it('default codeBlockParames=false', async () => {
+    const mrkStr2 = "### title\n<!--rehype:title=title3-->\n```js\nconsole.log('')\n```"
+    const expected = `<h3 title="title3">title</h3>\n<!--rehype:title=title3-->\n<pre><code class="language-js">console.log('')\n</code></pre>`
+    const htmlStr = unified()
+      .use(remarkParse)
+      .use(remark2rehype, { allowDangerousHtml: true })
+      .use(rehypeRaw)
+      .use(rehypeAttrs, {
+        properties: 'attr',
+        codeBlockParames: false
+      })
+      .use(stringify)
+      .processSync(mrkStr2)
+      .toString()
+      expect(htmlStr).toEqual(expected);
+  });
+
   it('default codeBlockParames=false', async () => {
     const expected = `<!--rehype:title=Rehype Attrs-->\n<pre><code class="language-js">console.log('')\n</code></pre>`
     const htmlStr = unified()
@@ -88,6 +105,7 @@ describe('rehype-attr test case', () => {
       .toString()
       expect(htmlStr).toEqual(expected);
   });
+
   it('default options="data"', async () => {
     const expected = `<!--rehype:title=Rehype Attrs-->\n<pre data-type="rehyp"><code class="language-js" data-config="[object Object]">console.log('')\n</code></pre>`
     const htmlStr = unified()