[Haskell-cafe] Prettier pretty-printing of data types?

[Ryan Newton]

Hi all,

I've got a question that pertains to any of these identify-region, parse,
make-expandable approaches.

The main use I'd like to use the trick for (esp. Chris's Emacs version) is
to deal with large intermediate compiler ASTs.

But if a compiler produces a long stream of output to stdout, with certain
Show-produced ASTs embedded in it, what's the most expedient way to
identify those regions that can be collapsed in the buffer and
interactively expanded?

   - The user could define heuristics for identifying those regions in a
   particular stream of output
   - If the source is available, the compiler could be tweaked to obey a
   protocol, putting delimiters around collapsable output (possibly
   non-printing control sequences??)

Or is there another hack I'm not thinking of?  What's easiest?

  -Ryan



On Wed, Mar 14, 2012 at 5:01 AM, Heinrich Apfelmus <
apfelmus at quantentunnel.de> wrote:

> Christopher Done wrote:
>
>> Maybe an Emacs script to expand the nodes nicely:
>> http://www.youtube.com/watch?**v=6ofEZQ7XoEA<http://www.youtube.com/watch?v=6ofEZQ7XoEA>I don't find mere pretty
>> printing that useful compared to the “expanding” paradigm I'm used to in
>> Chrome and Firebug.
>>
>
> Great demo video. My recent GSoC project suggestions aims to make that
> available to non-Emacsers, via the web browser.
>
>  http://hackage.haskell.org/**trac/summer-of-code/ticket/**1609<http://hackage.haskell.org/trac/summer-of-code/ticket/1609>
>
>
> Best regards,
> Heinrich Apfelmus
>
> --
> http://apfelmus.nfshost.com
>
>
>
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