Re: [frogs] Help with the Guile debugger

["Trevor Daniels" <t.daniels@xxxxxxxxxxx>]

Hi Ian

Thanks for this - I'll give your suggestions a spin later today. 
And
thanks for  confirming the problem is a general one, not down to
my incompetence.

Carl's already copied your note to -bug, so presumably Valentin
will pick it up and add it to the tracker.

Trevor

----- Original Message ----- 
From: "Ian Hulin" <ian@xxxxxxxxxxxx>
To: "Trevor Daniels" <t.daniels@xxxxxxxxxxx>
Cc: <frogs@xxxxxxxxxxx>
Sent: Sunday, December 27, 2009 5:09 PM
Subject: Re: [frogs] Help with the Guile debugger


> Hi Trevor,
>
> On 18/12/09 00:35, Trevor Daniels wrote:
> > I've got to the stage in writing code where I need
> > to use the Guile debugger, but I find the instructions
> > in the CG:
> >
> > http://kainhofer.com/~lilypond/Documentation/contributor/debugging-lilypond.html#debugging-lilypond
> >
> >
> > don't work for me.  Here's what happens.
> >
> > Compiling a ly program with debugging info is fine,
> > and after I've added \include "guile-debugger.ly"
> > to my test program it drops into the guile prompt
> > as it should.  So far so good.  But when I enter
> > the (break! ...) command the response is:
> >
> > GNU LilyPond 2.13.10
> > Processing `test1.ly'
> > Parsing...guile> (break! tab-duration-formatter)
> > ERROR: Unbound variable: break!
> > ABORT: (unbound-variable)
> > guile>
> >
> > But if I enter the commands contained in
> > guile-debugger.ly manually at the guile prompt
> > everything works as it should and I can set
> > breakpoints.
> >
> > I guess I'm doing something silly or missing
> > something obvious, but I can't see it.  Can anyone
> > help?
> >
> > TIA, Trevor
> 1) Can reproduce your findings
> 2) I'm investigating
> 3) I'm looking at a 0.2 of this using a module in scm
>
> This would mean you could do
> <In file your-source.ly>
> lily code
> \include "guile-debugger.ly"
>
> <In file your-scheme.scm>
> #(set-break! your-procedure)
> #(set-trace-subtree! your-procedure
> scheme code
>
>
> Then you'd do
>
> $ lilypond your-source.ly
> Parsing...
> guile> (quit)
> This is the Guile debugger -- for help, type `help'.
> There are nn frames on the stack.
>
> Frame nn at your-source.ly:xx:y
>         [your-procedure args]
> debug>
>
> Please could you log a tracker (or ask Valentin to do it) so we 
> can log
> that I'm working on this?
>
> Cheers,
> Ian



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