The prettyprinter supports multi-line output, and is used to implement
things like ``see``.
It looks like the line-breaks aren't used that much and work, but not in
the way you expect.
This is a workaround for you:
TUPLE: newline < block ;
M: newline section-fits? drop f ;
: <newline ( -- ) newline new-block (<block) ;
M: cell pprint* drop
<newline "01_" text block>
<newline "5_2" text block>
<newline "_43" text block> ;
I'll try and fix the prettyprinter to handle line-breaks in a more normal
manner.
On Fri, Apr 1, 2016 at 2:33 PM, Alexander Ilin <ajs...@yandex.ru> wrote:
> Hello!
>
> I'm trying to visualize some simple data structures, and I thought
> prettyprinting should fit my bill.
>
> Here's the thing I'm trying to show:
>
> USING: bit-sets ;
> IN: scratchpad
> TUPLE: cell { underlying bit-set } ;
>
> The idea is that a cell contains a set of 6 bits 0..5, each representing
> a position on a circular dial.
> I want it to be displayed in a clockwise fashion on three lines like
> this:
>
> 01_
> 5_2
> _43
>
> Underscore (put in here for alignment purposes) represents a single
> whitespace character. Any number that is not currently "in?" the
> "underlying" bit-set should be displayed as missing (or with an underscore).
> For example:
>
> 6 <bit-set> dup 0 swap adjoin dup 3 swap adjoin dup 5 swap adjoin cell boa
> .
>
> Should result in:
>
> 0__
> 5__
> __3
>
> So far I've got this:
>
> M: cell pprint* drop <block
> "01_" text hard add-line-break
> "5_2" text hard add-line-break
> "_43" text hard add-line-break block> ;
>
> Despite my attempt to add hard line breaks, the cell tuple is displayed
> one line in data stack and when using the . word:
>
> --- Data stack:
> 01_ 5_2 _43
>
> Is there a way to do 2-dimensional output with prettyprinter, or should
> I use a completely different approach?
>
> ---=====---
> Александр
>
>
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