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devel / comp.lang.postscript / Documentation for utf8decode and ushow (nee unicodeshow)

Documentation for utf8decode and ushow (nee unicodeshow)

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https://www.novabbs.com/devel/article-flat.php?id=9976&group=comp.lang.postscript#9976

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Date: Sun, 6 Mar 2022 23:54:58 +1100
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From: dav...@davidnewall.com (David Newall)
Subject: Documentation for utf8decode and ushow (nee unicodeshow)
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by: David Newall - Sun, 6 Mar 2022 12:54 UTC

Hello All,

I've almost finished my UTF-8 decode and Unicode show work. Significant
changes are:

1. unicodeshow is now ushow. The names all got a bit long.
2. The decoder has been rewritten based on code by Thompson and Pike in
Plan 9. They wrote an incredibly clever test for overlong sequences.
3. Documentation. Yes, really!
https://davidnewall.com/software/utf8show/PostScript%20UTF8%20Extension%20Reference.pdf

Have I left anything out?

Regards,

David

Re: Documentation for utf8decode and ushow (nee unicodeshow)

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Subject: Re: Documentation for utf8decode and ushow (nee unicodeshow)
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by: luser droog - Fri, 11 Mar 2022 06:26 UTC

On Sunday, March 6, 2022 at 6:55:09 AM UTC-6, David Newall wrote:
> Hello All,
>
> I've almost finished my UTF-8 decode and Unicode show work. Significant
> changes are:
>
> 1. unicodeshow is now ushow. The names all got a bit long.
> 2. The decoder has been rewritten based on code by Thompson and Pike in
> Plan 9. They wrote an incredibly clever test for overlong sequences.
> 3. Documentation. Yes, really!
> https://davidnewall.com/software/utf8show/PostScript%20UTF8%20Extension%20Reference.pdf
>
> Have I left anything out?
>
> Regards,
>
> David

Beautiful!

Found just a few typos:
p. 3 operator summary: kushow omits map argument
p.6 "it's CharProcs dictionary" errant apostrophe

possible improvement: Maybe add example code for the ushow details.
Sure, it's everywhere else. And you see it soon enough by scrolling either
up or down to the nearest example. But if you bee-line to the simple case,
you don't get the full view/narrow scope base case model all in a nutshell,
you know? Does that make sense?

possible improvement: show off more fancy characters in the examples?
This is friggin' brilliant. Crow it to the murder!

Subject	Author
Documentation for utf8decode and ushow (nee unicodeshow)	David Newall
Re: Documentation for utf8decode and ushow (nee unicodeshow)	luser droog