feat(highlight): add an option to switch stripIndent (#5427)

Co-authored-by: yoshinorin <yoshinorin.net@outlook.com>

lib/hexo/default_config.ts

@@ -48,13 +48,15 @@ export = {
     language_attr: false,
     hljs: false,
     line_threshold: 0,
-    first_line_number: 'always1'
+    first_line_number: 'always1',
+    strip_indent: true
   },
   prismjs: {
     preprocess: true,
     line_number: true,
     tab_replace: '',
-    exclude_languages: []
+    exclude_languages: [],
+    strip_indent: true
   },
   // Category & Tag
   default_category: 'uncategorized',

lib/plugins/highlight/highlight.ts

@@ -33,7 +33,8 @@ module.exports = function highlightFilter(this: Hexo, code: string, options: Opt
     languageAttr,
     mark: options.mark,
     tab: hljsCfg.tab_replace,
-    wrap: hljsCfg.wrap
+    wrap: hljsCfg.wrap,
+    stripIndent: hljsCfg.strip_indent
   };
   if (hljsCfg.first_line_number === 'inline') {
     if (typeof options.firstLineNumber !== 'undefined') {

lib/plugins/highlight/prism.ts

@@ -15,7 +15,8 @@ module.exports = function(code, options) {
     lang: options.lang,
     lineNumber,
     mark: options.mark,
-    tab: prismjsCfg.tab_replace
+    tab: prismjsCfg.tab_replace,
+    stripIndent: prismjsCfg.strip_indent
   };
 
   if (!prismHighlight) prismHighlight = require('hexo-util').prismHighlight;

package.json

@@ -48,7 +48,7 @@
     "hexo-fs": "^4.1.1",
     "hexo-i18n": "^2.0.0",
     "hexo-log": "^4.0.1",
-    "hexo-util": "^3.0.1",
+    "hexo-util": "^3.3.0",
     "js-yaml": "^4.1.0",
     "js-yaml-js-types": "^1.0.0",
     "micromatch": "^4.0.4",