Re: Flex and EOF

"Russ Cox" <>
9 Apr 2006 16:59:57 -0400

          From comp.compilers

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From: "Russ Cox" <>
Newsgroups: comp.compilers
Date: 9 Apr 2006 16:59:57 -0400
Organization: Compilers Central
References: 06-04-035
Keywords: lex
Posted-Date: 09 Apr 2006 16:59:57 EDT

> I have a rule in my lexer to skip shell-like comments:
> #.*$ /* skip comments */
> which works just fine if there is \n at the end of the line.
> If the comment is in the last line wich is terminated by EOF the rule
> obviously fails.

Since . doesn't match \n, wouldn't #.* work just fine in either case?
And then you get the \n as a separate token, which might be beneficial
for line counting purposes anyway.


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