Re: [racket-users] Change how to print builtins

2017-06-27 Thread Matthew Flatt
Besides struct-specific printing, the pretty printer from
`racket/pretty` provides a hook for changing the printed form of
anything via `pretty-print-size-hook` plus `pretty-print-print-hook`.

At Thu, 22 Jun 2017 18:39:15 -0700 (PDT), Sam Waxman wrote:
> Hello,
> 
> I was having trouble figuring out how to get racket to print values however I 
> wanted. In particular, I was hoping to make exact nums print as decimals and 
> true print as true (and not #t or #true). It would also be nice if I could 
> custom print procedures so that + printed as plain old + or in some other 
> yet-to-be-decided format. There might be other minor cosmetic things I'd like 
> to do in the future, so if there's a general way to write my own printer, 
> that 
> would be preferred, but if there are builtin features just to do the first 
> two 
> specific things, that would be pretty helpful too.
> 
> (I have to imagine there are pretty good ways to do this considering 
> user-defined #langs could print out all sorts of things, and they're not just 
> wrapping all their values in structs with custom print settings are they?)
> 
> Many thanks in advance
> 
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Re: [racket-users] Change how to print builtins

2017-06-23 Thread David Storrs
For myself, I would like some better pretty-printing of nested data
structures and for structs to have their field names included with the
values so that they printed in a more hash-like format.

On Thu, Jun 22, 2017 at 9:39 PM, Sam Waxman  wrote:

> Hello,
>
> I was having trouble figuring out how to get racket to print values
> however I wanted. In particular, I was hoping to make exact nums print as
> decimals and true print as true (and not #t or #true). It would also be
> nice if I could custom print procedures so that + printed as plain old + or
> in some other yet-to-be-decided format. There might be other minor cosmetic
> things I'd like to do in the future, so if there's a general way to write
> my own printer, that would be preferred, but if there are builtin features
> just to do the first two specific things, that would be pretty helpful too.
>
> (I have to imagine there are pretty good ways to do this considering
> user-defined #langs could print out all sorts of things, and they're not
> just wrapping all their values in structs with custom print settings are
> they?)
>
> Many thanks in advance
>
> --
> You received this message because you are subscribed to the Google Groups
> "Racket Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to racket-users+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
>

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