fix(backtick_code): handle empty code blocks (#5206)

hexojs · May 20, 2023 · c62909d · c62909d
1 parent 725422a
commit c62909d
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/lib/plugins/filter/before_post_render/backtick_code_block.ts b/lib/plugins/filter/before_post_render/backtick_code_block.ts
@@ -1,4 +1,4 @@
-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+|$)/gm;
+const rBacktick = /^((?:[^\S\r\n]*>){0,3}[^\S\r\n]*)(`{3,}|~{3,})[^\S\r\n]*((?:.*?[^`\s])?)[^\S\r\n]*\n((?:[\s\S]*?\n)*?)(?:(?:[^\S\r\n]*>){0,3}[^\S\r\n]*)\2[^\S\r\n]?(\n+|$)/gm;
 const rAllOptions = /([^\s]+)\s+(.+?)\s+(https?:\/\/\S+|\/\S+)\s*(.+)?/;
 const rLangCaption = /([^\s]+)\s*(.+)?/;
 

diff --git a/test/scripts/filters/backtick_code_block.js b/test/scripts/filters/backtick_code_block.js
@@ -650,5 +650,19 @@ describe('Backtick code block', () => {
       codeBlock(data);
       data.content.should.eql('<hexoPostRenderCodeBlock>' + expected + '</hexoPostRenderCodeBlock>');
     });
+
+    it('handle empty code block', () => {
+      const data = {
+        content: [
+          '``` js',
+          '```',
+          '# New line',
+          '``` js',
+          '```'
+        ].join('\n')
+      };
+      codeBlock(data);
+      data.content.match(/<hexoPostRenderCodeBlock>/g).length.should.eql(2);
+    });
   });
 });