lib/rouge/lexers/javascript.rb in rouge-3.20.0 vs lib/rouge/lexers/javascript.rb in rouge-3.21.0

@@ -17,10 +17,12 @@
       aliases 'js'
       filenames '*.cjs', '*.js', '*.mjs'
       mimetypes 'application/javascript', 'application/x-javascript',
                 'text/javascript', 'text/x-javascript'
 
+      # Pseudo-documentation: https://stackoverflow.com/questions/1661197/what-characters-are-valid-for-javascript-variable-names
+
       def self.detect?(text)
         return 1 if text.shebang?('node')
         return 1 if text.shebang?('jsc')
         # TODO: rhino, spidermonkey, etc
       end
@@ -136,10 +138,10 @@
           Float32Array Float64Array DataView ArrayBuffer
         )
       end
 
       def self.id_regex
-        /[$a-z_][a-z0-9_]*/io
+        /[\p{L}\p{Nl}$_][\p{Word}]*/io
       end
 
       id = self.id_regex
 
       state :root do