Fix code highlighting for languages with non-alphanumeric characters (#2092)

jonatanklosko · web-flow · commit abe1c66061fa · 2025-02-18T21:12:12.000+01:00
diff --git a/lib/ex_doc/doc_ast.ex b/lib/ex_doc/doc_ast.ex
@@ -165,7 +165,7 @@ defmodule ExDoc.DocAST do
 
     ## Html cannot be parsed with regex, but we try our best...
     Regex.replace(
-      ~r/<pre(\s[^>]*)?><code(?:\s+class="(\w*)")?>([^<]*)<\/code><\/pre>/,
+      ~r/<pre(\s[^>]*)?><code(?:\s+class="([^"\s]*)")?>([^<]*)<\/code><\/pre>/,
       html,
       &highlight_code_block(&1, &2, &3, &4, highlight_info, opts)
     )

Original file line number	Diff line number	Diff line change
`@@ -165,7 +165,7 @@ defmodule ExDoc.DocAST do`
`165`	`165`
`166`	`166`	`## Html cannot be parsed with regex, but we try our best...`
`167`	`167`	`Regex.replace(`
`168`		`- ~r/<pre(\s[^>])?><code(?:\s+class="(\w)")?>([^<]*)<\/code><\/pre>/,`
	`168`	`+ ~r/<pre(\s[^>])?><code(?:\s+class="([^"\s])")?>([^<]*)<\/code><\/pre>/,`
`169`	`169`	`html,`
`170`	`170`	`&highlight_code_block(&1, &2, &3, &4, highlight_info, opts)`
`171`	`171`	`)`