Disable copy button for bad pre blocks

docs/_docs/18-history.md

@@ -5,7 +5,7 @@ permalink: "/docs/history/"
 excerpt: Change log of enhancements and bug fixes made to the theme.
 sidebar:
   nav: docs
-last_modified_at: '2024-05-06T21:06:31+08:00'
+last_modified_at: '2024-05-06T21:15:29+08:00'
 toc: false
 ---
 
@@ -19,7 +19,7 @@ toc: false
 
 ### Bug Fixes
 
-- Fix copy button going out of range for invalid syntax highlighting blocks.
+- Disable copy button on invalid syntax highlighting blocks to avoid positioning issues.
 
 ### Enhancements
 

docs/_posts/2009-10-06-edge-case-broken-highlighting.md

@@ -21,13 +21,28 @@ if str
 end
 ```
 
+Good (but dumb) highlighting:
+
+```
+str = ARGV.first
+if str
+  str = str.b[/\A_(.*)_\z/, 1]
+  if str and Gem::Version.correct?(str)
+    version = str
+    ARGV.shift
+  end
+end
+```
+
 Bad highlighting:
 
 ```invalid
-if Gem.respond_to?(:activate_bin_path)
-  load Gem.activate_bin_path('jekyll', 'jekyll', version)
-else
-  gem "jekyll", version
-  load Gem.bin_path("jekyll", "jekyll", version)
+str = ARGV.first
+if str
+  str = str.b[/\A_(.*)_\z/, 1]
+  if str and Gem::Version.correct?(str)
+    version = str
+    ARGV.shift
+  end
 end
 ```