Fix for bug#755744

docs/releasenotes.html

@@ -114,6 +114,9 @@
 
         <li class="body">Fixed grammar problems with unclosed string
         literals and multiple-lines comments (bug 694111)</li>
+
+        <li class="body">Fixed grammar definition for identifiers to
+        handle all Unicode symbols (bug 755744)</li>
       </ul>
 
 

src/checkstyle/com/puppycrawl/tools/checkstyle/java.g

@@ -1148,7 +1148,8 @@ VOCAB
 // if it's a literal or really an identifer
 IDENT
 	options {testLiterals=true;}
-	:	('a'..'z'|'A'..'Z'|'_'|'$') ('a'..'z'|'A'..'Z'|'_'|'0'..'9'|'$')*
+	:	('a'..'z'|'A'..'Z'|'_'|'$'| {Character.isJavaIdentifierStart(LA(1))}? '\u0080'..'\uFFFE')
+                ('a'..'z'|'A'..'Z'|'_'|'0'..'9'|'$'| {Character.isJavaIdentifierPart(LA(1))}? '\u0080'..'\uFFFE')*
 	;