How about converting your input to all lowercase (or uppercase) before feeding it into the lexer?
Stephan
Stephan, thanks for your suggestion it seems that my alerts are not working...
That is how I have it implemented rigth now, however that means that if I have a string "Hello" it will be treated the same as "hello". I want the lexer to recognize the tokens independently of the casing without having to normalize the whole input. No magic swithces available?
Thanks,
Martín
None of the email notifications work, which is a pitty.
I don't think there's command line switch, but you could just use a pattern like "[kK][eE][yY][wW][oO][rR][dD]" instead of "keyword" in the lexer. That's a bit cumbersome to type but should do the trick.
Stephan
Thanks for the suggestion it seems that flex has a -i switch that solves that. Too bad it wasn't implemented in fslex. Also .Net regular expressions have the (?i) flag to ignore case but this isn't working either. In the end I will implement what you said. Thanks a lot for your help.
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Hello all,
Can anybody tell me what is the best way to make my lexer case-insensitive?
Maybe there is a command line argument or something like that in fslex.
Thanks in advance,
Martin