Re: Locations suggest

[John W. Millaway]

> One should perhaps equip Flex with better token location recording, for use
> with error messages, etc:

Good idea. We've already integrated the bison YYLTYPE values into the reentrant
scanner (these are placeholders for line/col information -- but no code
actually fills them in).

Now is a good time to mention that the "performance penalty" cited in the docs
for %option lineno is an overstatement -- it's just a loop over yytext to check
for '\n'. This is where we would stick the code to maintain column information.

-John



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