From: "Jairo A. del Rio via ntg-context" <ntg-context@ntg.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: "Jairo A. del Rio" <jairoadelrio6@gmail.com>
Subject: Re: upload
Date: Sun, 5 Dec 2021 23:41:18 -0500 [thread overview]
Message-ID: <CAKyqqaaC5t1nwKN4qmdX7goEa3av91fiNFZia7B7jwr74Ug=cg@mail.gmail.com> (raw)
In-Reply-To: <56be4d62-9642-cdd3-acf5-79334efc3b8a@xs4all.nl>
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Hi, Hans. I've got a question. Negative steps are treated as positive:
\starttext
\expandedloop 10 0 -2 {\the\currentloopiterator\ }
\stoptext
gives
0 2 4 6 8 10
Is this expected behavior? If so, it would be fine to have something more
alike to MetaPost's "for ... step ... until" loop. Thank you in advance.
Regards,
Jairo
El vie, 3 dic 2021 a la(s) 09:29, Hans Hagen via ntg-context (
ntg-context@ntg.nl) escribió:
> Hi,
>
> a new upload
>
> - some keywords renamed in the engine and therefore more split between
> mkiv and lmtx (hopefully i included all files) .. if something doesn't
> work any more it might be because i missed a rename.
>
> - i finally decied that it does make sense to have native loops at the
> primitive level (after all, metapost as macro language also has them)
> and although much is possible in macros it doesn't mean we have to do it
> the (often ugly and showing-off-by-abusing-side-effects way).
>
> We have just a constructor:
>
> \unexpandedloop 1 100 1 {.}
>
> and a fully expandable one for e.g. use in \edef:
>
> \expandedloop 1 100 1 {.}
>
> plus an also fully expandable one for anywhere but with potential side
> effects (out of order local loops):
>
> \localcontrolledloop 1 100 1 {.}
>
> complemented by a few status primitives (integers, use \the or \number
> to serialize them):
>
> \currentloopiterator
> \currentloopnesting
>
> and a quitter that aborts at the next iteration:
>
> \quitloop
>
> as usual it's experimental for a while. Among the rationales are 'less
> tracing clutter', 'performance' and 'more natural primitive tex coding'
> (but that one is personal).
>
> Hans
>
> -----------------------------------------------------------------
> Hans Hagen | PRAGMA ADE
> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
>
> ___________________________________________________________________________________
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>
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
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next prev parent reply other threads:[~2021-12-06 4:41 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-03 14:29 upload Hans Hagen via ntg-context
2021-12-06 4:41 ` Jairo A. del Rio via ntg-context [this message]
2021-12-06 10:56 ` [DKIM] upload Hans Hagen via ntg-context
-- strict thread matches above, loose matches on Subject: below --
2023-04-11 21:02 upload Hans Hagen via ntg-context
2022-12-21 16:20 upload Hans Hagen via ntg-context
2022-12-21 21:15 ` upload Pablo Rodriguez via ntg-context
2022-12-09 16:41 upload Hans Hagen via ntg-context
2022-10-21 19:23 upload Hans Hagen via ntg-context
2022-07-06 20:10 upload Hans Hagen via ntg-context
2022-07-06 20:38 ` upload Mikael Sundqvist via ntg-context
2022-07-07 1:15 ` upload Max Chernoff via ntg-context
2022-07-07 8:27 ` upload Hans Hagen via ntg-context
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[not found] <mailman.320.1640390435.1172.ntg-context@ntg.nl>
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2021-10-22 7:55 ` upload Hans Hagen via ntg-context
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2020-11-23 19:21 ` upload Otared Kavian
2020-11-23 19:27 ` upload Hans Hagen
2020-11-23 19:24 ` upload Hans Hagen
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2020-11-17 13:57 ` upload Pablo Rodriguez
2020-11-17 14:15 ` upload Hans Hagen
2020-11-18 20:29 ` upload Pablo Rodriguez
2020-11-18 22:57 ` upload Hans Hagen
2020-11-17 15:26 ` upload Willi Egger
2020-07-27 14:42 upload Hans Hagen
2020-07-28 8:58 ` upload Fabrice Couvreur
2020-07-28 11:28 ` upload Hans Hagen
2020-02-11 16:00 upload Hans Hagen
2020-02-11 16:18 ` upload Floris van Manen
2020-02-11 19:07 ` upload Hans Hagen
2020-02-11 21:09 ` upload Richard Mahoney | Indica et Buddhica
2020-02-13 10:28 ` upload mf
2020-02-13 12:57 ` upload Hans Hagen
2020-02-17 9:39 ` upload mf
2013-03-05 18:18 upload Hans Hagen
2013-03-05 19:45 ` upload Thomas A. Schmitz
2012-07-04 8:56 upload Hans Hagen
2012-07-04 10:40 ` upload Hongwen Qiu
2012-07-04 11:29 ` upload Hans Hagen
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2012-06-20 3:28 ` upload Hongwen Qiu
2012-06-20 14:20 ` upload Hans Hagen
2006-04-07 8:22 upload Hans Hagen
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