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From: Jeff King <peff@peff.net>
To: "René Scharfe" <l.s.r@web.de>
Cc: Taylor Blau <me@ttaylorr.com>,
	git@vger.kernel.org, Chris Torek <chris.torek@gmail.com>,
	Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH v2 1/6] string-list: introduce `string_list_split_in_place_multi()`
Date: Sat, 22 Apr 2023 20:35:53 -0400	[thread overview]
Message-ID: <20230423003553.GA3953216@coredump.intra.peff.net> (raw)
In-Reply-To: <8d228041-d473-7f3f-87d7-543b350aab0e@web.de>

On Sat, Apr 22, 2023 at 05:53:05PM +0200, René Scharfe wrote:

> > Obviously one solution is to add the "runs" option to all variants. But
> > I'd be hesitant to burden existing callers. So I'd propose one of:
> >
> >   1. Make your _1() function public, with a name like _with_options() or
> >      something (though the function name is sadly already quite long).
> >      Leave string_list_split_in_place() as a wrapper that behaves as
> >      now, and have the few new callers use the with_options() variant.
> >
> >   2. Don't bother implementing the "runs" version. The only users would
> >      be test programs, and nobody cares much either way for their cases.
> >      Document in the commit message (and possibly above the function)
> >      that this isn't a strict replacement for strtok(). That would
> >      hopefully be enough for a potential caller to think about the
> >      behavior, and we can add "runs" if and when somebody actually wants
> >      it.
> 
> You can call string_list_remove_empty_items() to get rid of empty
> strings.  And if the single-char version calls a multi-char version
> under the hood then its only advantage is backward compatibility -- but
> converting all callers isn't that hard.  So the only string_list split
> function version you really need accepts multiple delimiters and
> preserves empty items and can be called string_list_split_in_place().

Ooh, I like that. I didn't think of processing after the fact. And
indeed, we have several spots already that do the split/remove_empty
pair.

And yes, it looks like there are only 7 callers which would need a
trivial update if we just switched to the multi-char version.

That's very compelling.

-Peff

  reply	other threads:[~2023-04-23  0:35 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-13 23:31 [PATCH 0/5] banned: mark `strok()`, `strtok_r()` as banned Taylor Blau
2023-04-13 23:31 ` [PATCH 1/5] string-list: introduce `string_list_split_in_place_multi()` Taylor Blau
2023-04-18 10:10   ` Jeff King
2023-04-18 17:08     ` Taylor Blau
2023-04-13 23:31 ` [PATCH 2/5] t/helper/test-hashmap.c: avoid using `strtok()` Taylor Blau
2023-04-18 10:23   ` Jeff King
2023-04-18 18:06     ` Taylor Blau
2023-04-13 23:31 ` [PATCH 3/5] t/helper/test-oidmap.c: " Taylor Blau
2023-04-13 23:31 ` [PATCH 4/5] t/helper/test-json-writer.c: " Taylor Blau
2023-04-13 23:31 ` [PATCH 5/5] banned.h: mark `strtok()`, `strtok_r()` as banned Taylor Blau
2023-04-14  1:39   ` Junio C Hamano
2023-04-14  2:08     ` Chris Torek
2023-04-14 13:41     ` Taylor Blau
2023-04-18 19:18 ` [PATCH v2 0/6] banned: mark `strok()` " Taylor Blau
2023-04-18 19:18   ` [PATCH v2 1/6] string-list: introduce `string_list_split_in_place_multi()` Taylor Blau
2023-04-18 19:39     ` Junio C Hamano
2023-04-18 20:54       ` Taylor Blau
2023-04-22 11:12     ` Jeff King
2023-04-22 15:53       ` René Scharfe
2023-04-23  0:35         ` Jeff King [this message]
2023-04-24 16:24           ` Junio C Hamano
2023-04-23  2:38       ` [PATCH v2 1/6] string-list: introduce `string_list_split_in_place_multi()`t Taylor Blau
2023-04-23  2:40         ` Taylor Blau
2023-04-18 19:18   ` [PATCH v2 2/6] string-list: introduce `string_list_setlen()` Taylor Blau
2023-04-22 11:14     ` Jeff King
2023-04-18 19:18   ` [PATCH v2 3/6] t/helper/test-hashmap.c: avoid using `strtok()` Taylor Blau
2023-04-22 11:16     ` Jeff King
2023-04-24 21:19       ` Taylor Blau
2023-04-18 19:18   ` [PATCH v2 4/6] t/helper/test-oidmap.c: " Taylor Blau
2023-04-18 19:18   ` [PATCH v2 5/6] t/helper/test-json-writer.c: " Taylor Blau
2023-04-18 19:18   ` [PATCH v2 6/6] banned.h: mark `strtok()` as banned Taylor Blau
2023-04-24 22:20 ` [PATCH v3 0/6] banned: mark `strok()`, `strtok_r()` " Taylor Blau
2023-04-24 22:20   ` [PATCH v3 1/6] string-list: multi-delimiter `string_list_split_in_place()` Taylor Blau
2023-04-24 22:20   ` [PATCH v3 2/6] string-list: introduce `string_list_setlen()` Taylor Blau
2023-04-25  6:21     ` Jeff King
2023-04-25 21:00       ` Taylor Blau
2023-04-24 22:20   ` [PATCH v3 3/6] t/helper/test-hashmap.c: avoid using `strtok()` Taylor Blau
2023-04-24 22:20   ` [PATCH v3 4/6] t/helper/test-oidmap.c: " Taylor Blau
2023-04-24 22:20   ` [PATCH v3 5/6] t/helper/test-json-writer.c: " Taylor Blau
2023-04-25 13:57     ` Jeff Hostetler
2023-04-24 22:20   ` [PATCH v3 6/6] banned.h: mark `strtok()` and `strtok_r()` as banned Taylor Blau
2023-04-24 22:25     ` Chris Torek
2023-04-24 23:00       ` Taylor Blau
2023-04-25  6:26     ` Jeff King
2023-04-25 21:02       ` Taylor Blau
2023-04-25  6:27   ` [PATCH v3 0/6] banned: mark `strok()`, " Jeff King
2023-04-25 21:03     ` Taylor Blau

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