Exclude some languages in code highlghting. (#3865)

Signed-off-by: corvofeng <corvofeng@gmail.com>
hexojs · Feb 27, 2022 · c73dbed · c73dbed
1 parent 035c73f
commit c73dbed
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diff --git a/lib/hexo/default_config.js b/lib/hexo/default_config.js
@@ -46,6 +46,7 @@ module.exports = {
     line_number: true,
     tab_replace: '',
     wrap: true,
+    exclude_languages: [],
     hljs: false
   },
   prismjs: {

diff --git a/lib/plugins/filter/before_post_render/backtick_code_block.js b/lib/plugins/filter/before_post_render/backtick_code_block.js
@@ -89,6 +89,13 @@ function backtickCodeBlock(data) {
         }
       }
 
+      if (Array.isArray(hljsCfg.exclude_languages) && hljsCfg.exclude_languages.includes(options.lang)) {
+        // Only wrap with <pre><code class="lang"></code></pre>
+        options.wrap = false;
+        options.gutter = false;
+        options.autoDetect = false;
+      }
+
       content = highlight(content, options);
     }
 

diff --git a/test/scripts/filters/backtick_code_block.js b/test/scripts/filters/backtick_code_block.js
@@ -241,6 +241,26 @@ describe('Backtick code block', () => {
       data.content.should.eql('<hexoPostRenderCodeBlock>' + expected + '</hexoPostRenderCodeBlock>');
     });
 
+    it('only wrap with pre and code', () => {
+      hexo.config.highlight.exclude_languages = ['js'];
+      hexo.config.highlight.hljs = true;
+      const data = {
+        content: [
+          '``` js',
+          code,
+          '```'
+        ].join('\n')
+      };
+      const expected = highlight(code, {
+        lang: 'js',
+        gutter: false,
+        hljs: true,
+        wrap: false
+      });
+      codeBlock(data);
+      data.content.should.eql('<hexoPostRenderCodeBlock>' + expected + '</hexoPostRenderCodeBlock>');
+    });
+
     it('line number false, don`t care first_line_number inilne', () => {
       hexo.config.highlight.line_number = false;
       hexo.config.highlight.first_line_number = 'inilne';