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Re: How to make Bison disregard tokens?
From: |
henrik . sorensen |
Subject: |
Re: How to make Bison disregard tokens? |
Date: |
Fri, 2 Mar 2007 14:59:13 +0100 |
User-agent: |
KMail/1.9.5 |
On Friday 02 March 2007 14:50, Tim Van Holder wrote:
> To me this seems like the same problem as preserving comments in a
> parse-process-generate system (which is a pain in the ass).
not really a problem.
If using the location tracking feature, it would be trivial to add some fields
to keep track of a comment associated with a token.
With in the scanner, instead of just discarding the comments, copy them to a
string, and add it the location structure, when the next token is returned to
the parser.
> You could have the lexer tally empty lines and set that count as a
> property of the semantic value of "real" tokens.
At least with Bison parsers you can use the location tracking.
Henrik
- Re: How to make Bison disregard tokens?, (continued)
- Re: How to make Bison disregard tokens?, henrik . sorensen, 2007/03/02
- Re: How to make Bison disregard tokens?, Edsko de Vries, 2007/03/02
- Re: How to make Bison disregard tokens?, henrik . sorensen, 2007/03/02
- Re: How to make Bison disregard tokens?, Edsko de Vries, 2007/03/02
- Re: How to make Bison disregard tokens?, henrik . sorensen, 2007/03/02
- Re: How to make Bison disregard tokens?, Edsko de Vries, 2007/03/02
- Re: How to make Bison disregard tokens?, henrik . sorensen, 2007/03/02
- Re: How to make Bison disregard tokens?, Edsko de Vries, 2007/03/02
- Re: How to make Bison disregard tokens?, henrik . sorensen, 2007/03/02
- Re: How to make Bison disregard tokens?, Tim Van Holder, 2007/03/02
- Re: How to make Bison disregard tokens?,
henrik . sorensen <=
- Re: How to make Bison disregard tokens?, Edsko de Vries, 2007/03/02
- Re: How to make Bison disregard tokens?, henrik . sorensen, 2007/03/02
- Re: How to make Bison disregard tokens?, Tim Van Holder, 2007/03/02
- Re: How to make Bison disregard tokens?, Edsko de Vries, 2007/03/02
- Re: How to make Bison disregard tokens?, Edsko de Vries, 2007/03/02