Re: [boost] wave lexed_tokens sample has a lexing error on an empty file

From: Leo Davis (ldavis_at_[hidden])
Date: 2007-03-23 20:46:45

Leo Davis wrote:
> Hello,
> 
> I pulled down a copy of boost 1.34 from CVS today and built the
> lexed_tokens sample.  It seemed to work well, except for running it on
> an empty file:
> 
> $./lexed_tokens bar.c
> bar.c(1): error: generic lexing error: invalid character '\000' in input
> stream
> $
> 
> This used to work in boost 1.33.1:
> 
> $ ./lexed_tokens bar.c
> EOF              (#402) at bar.c (  1/ 1): ><
> $
> 
> Leo
> 
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I was able to get the behavior I wanted by applying the following patch
in libs/wave/src/cpplexer/re2clex.  I don't know if this is a good idea
or not.  I wasn't able to get something that looked correct out of re2c,
so I don't have those patched.

Leo