not channel=99 (well if you grab latest build from the repo. browser). I added HIDDEN so we can say channel=HIDDEN in lexer actions. edit //depot/code/antlr/main/src/org/antlr/runtime/ BaseRecognizer.java#18 edit //depot/code/antlr/main/src/org/antlr/runtime/Token.java#20 Change 3114 submitted. Ter