fix: Parsing error for code blocks in list items (#5617)

Co-authored-by: Uiolee <22849383+uiolee@users.noreply.github.com>

Author: D-Sketon

lib/plugins/filter/before_post_render/backtick_code_block.ts

@@ -1,7 +1,7 @@
 import type Hexo from '../../../hexo';
 import type { RenderData } from '../../../types';
 
-const rBacktick = /^((?:[^\S\r\n]*>){0,3}[^\S\r\n]*)(`{3,}|~{3,})[^\S\r\n]*((?:.*?[^`\s])?)[^\S\r\n]*\n((?:[\s\S]*?\n)?)(?:(?:[^\S\r\n]*>){0,3}[^\S\r\n]*)\2[^\S\r\n]?(\n+|$)/gm;
+const rBacktick = /^((?:(?:[^\S\r\n]*>){0,3}|[-*+]|[0-9]+\.)[^\S\r\n]*)(`{3,}|~{3,})[^\S\r\n]*((?:.*?[^`\s])?)[^\S\r\n]*\n((?:[\s\S]*?\n)?)(?:(?:[^\S\r\n]*>){0,3}[^\S\r\n]*)\2[^\S\r\n]?(\n+|$)/gm;
 const rAllOptions = /([^\s]+)\s+(.+?)\s+(https?:\/\/\S+|\/\S+)\s*(.+)?/;
 const rLangCaption = /([^\s]+)\s*(.+)?/;
 

test/scripts/filters/backtick_code_block.ts

@@ -504,6 +504,80 @@ describe('Backtick code block', () => {
       codeBlock(data);
       data.content.should.contain('\n\n# New line');
     });
+
+    // https://github.com/hexojs/hexo/issues/5423
+    it('with ordered list', () => {
+      const data = {
+        content: [
+          '1. ``` js',
+          code,
+          '```',
+          '2. ``` js',
+          code,
+          '```'
+        ].join('\n')
+      };
+
+      codeBlock(data);
+      data.content.should.eql([
+        '1. <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>',
+        '2. <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>'
+      ].join('\n'));
+    });
+
+    // https://github.com/hexojs/hexo/issues/5423
+    it('with unordered list', () => {
+      let data = {
+        content: [
+          '- ``` js',
+          code,
+          '```',
+          '- ``` js',
+          code,
+          '```'
+        ].join('\n')
+      };
+
+      codeBlock(data);
+      data.content.should.eql([
+        '- <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>',
+        '- <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>'
+      ].join('\n'));
+
+      data = {
+        content: [
+          '* ``` js',
+          code,
+          '```',
+          '* ``` js',
+          code,
+          '```'
+        ].join('\n')
+      };
+
+      codeBlock(data);
+      data.content.should.eql([
+        '* <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>',
+        '* <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>'
+      ].join('\n'));
+
+      data = {
+        content: [
+          '+ ``` js',
+          code,
+          '```',
+          '+ ``` js',
+          code,
+          '```'
+        ].join('\n')
+      };
+
+      codeBlock(data);
+      data.content.should.eql([
+        '+ <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>',
+        '+ <hexoPostRenderCodeBlock>' + highlight(code, { lang: 'js' }) + '</hexoPostRenderCodeBlock>'
+      ].join('\n'));
+    });
   });
 
   describe('prismjs', () => {