Re: ddd API?

Thanks, this information is really helpful.

Duncan Murdoch

On 12/20/2006 11:14 AM, R. Bernstein wrote:
> As someone who added two debugger front ends (for Bash, and GNU make)
> and has been hacking away at the Python debugger front end, I am not
> aware of any such document. Worse, things are not really consolidated
> in just a few files, but are rather spread out over maybe 5-10 files.
> 
> One way to get a a list of files that need to be changed might be to
> compare ddd-3.3.11 with ddd-3.3.12-test2 (the version that's in the
> files section of the bashdb project:
> http://sourceforge.net/project/showfiles.php?group_id=61395&package_id=65341
> not what's in CVS that's *also* called test2). The changes between
> ddd-3.3.11 and that 3.3.12 are just those to add a frontend for the
> GNU make debugger.
> 
> Loking at the differences you'll se not only the files but you may
> also be able to glean what specific parts of those files need to be
> changed.
> 
> In general the process I use is for this feature (e.g. how to issue a
> debugger "step" command) language R is like language Y so see have ddd
> handle it like Y here.
> 
> For example, bash has variable interpolation like Perl, so use that
> there. And like Perl, but not like gdb, when you start up you are
> already somewhere inside the program to be debugged). The bash
> debugger shows tracebacks like gdb, so follow that in the portion that
> deals with tracebacks. In fact the bash debugger has many commands
> like gdb, so you will see many switch statements where case gdb will
> be shared with the case for bashdb as well.
> 
> Good luck!
> 
> 
> Duncan Murdoch writes:
>  > Is there a developer page or document somewhere describing what's 
>  > necessary to add support for a new debugger to ddd?  I'd like to use ddd 
>  > as a front-end when debugging R (www.r-project.org); it's an interpreted 
>  > language.
>  > 
>  > Duncan Murdoch
>  > 
>  > 
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