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c-like comment in lex

unknown_
unknown_ asked
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Last Modified: 2012-05-06
Hello,

How can i declare the c-like comments in my lexer?
i.e. single line comment  =  /* comment */

I did that :

\/\* . *\/\  line++;

but i get :

error: syntax error before . token
error: stray \ in program
error: stray \ in program

Thanks in advance for any help !
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Commented:
FYI I have disabled multi-line comments in my own compilers just for simplicity. I stick with the // and #

But its not too difficult, it helps if you make use of lexer states. If I were you (unknown_) I would stick with single line comments and move on to properly finishing your compiler project. I'm just saying this because I and Infinity have an idea of where you are due to helping you with it in several areas (which we are happy to continue with), and I feel like you may be distracting yourself from the importance of building a proper grammar and code generator.

You can always add C comments later.

That said, its up to you, so if you don't agree, Infinity's link should help.

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Top Expert 2009

Commented:
Good point, mrjoltcola.

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