Re: [Cpip-develop] #line and #pragma issues

[cpip c. <cp...@gm...>]

Hi Bengt,

Sorry for the delay, I have been snowed under recently and neglecting CPIP!

These are great ideas, I have already implemented the Pragma one in the SF
main branch. You now construct a PpLexer with a (just added)
PragmaHandler.PragmaHandlerEcho() like this:

myLexer = PpLexer.PpLexer(
            'hello.c',
            CppIncludeStringIO([], [], myStr, {}),
            pragmaHandler=PragmaHandler.PragmaHandlerEcho(),
        )

All pragma statments are now preserved in the output.

As for the line number/file idea, I have partially implemented and should
finish it tonight. or at the weekend.

I hope CPIP is being useful!

Thanks,

Paul.




On Thu, Jan 15, 2015 at 3:50 PM, Bengt Gustafsson <
Ben...@co...> wrote:

> Hi!
>
>
>
> I am using the cpip module in a situation where I need to first
> preprocess, then massage the preprocessed code a bit and finally send the
> resulting source code off to the “real” compiler.
>
>
>
> The cpip module was really easy to get working but I have two problems,
> listed below.
>
>
>
> One is that the original source code contains #pragma directives. I want
> these to go right through the preprocessing. While it is possible to
> install a pragma handler it does not seem to be possible to avoid an
> endless loop if
>
> I just send the pragma back to the source stream. I would like a
> possibility to block further preprocessing of whatever the pragma()
> function returns. Alternatively and simpler in my case another callback,
> say keep() which if it exists and returns true moves the entire pragma line
> to the output stream automatically.
>
>
>
> Another problem is that if I get an error in the final compilation step I
> won’t know what the original line number is or which include file a
> particular line comes from. With other preprocessors the output stream is
> usually filled with #line directives which the compiler uses to make sure
> error messages are appointed to the right line in the original source even
> if the preprocessor is run as a separate step. I would like an option to
> generate #line directives in the output file!
>
>
>
> Best Regards,
>
> Bengt Gustafsson
>
>
>
>
> ------------------------------------------------------------------------------
> New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
> GigeNET is offering a free month of service with a new server in Ashburn.
> Choose from 2 high performing configs, both with 100TB of bandwidth.
> Higher redundancy.Lower latency.Increased capacity.Completely compliant.
> http://p.sf.net/sfu/gigenet
> _______________________________________________
> Cpip-develop mailing list
> Cpi...@li...
> https://lists.sourceforge.net/lists/listinfo/cpip-develop
>
>