From: Junio C Hamano <gitster@pobox.com>
To: "Torsten Bögershausen" <tboegi@web.de>
Cc: git@vger.kernel.org, alexander.s.m@gmail.com, Johannes.Schindelin@gmx.de
Subject: Re: [PATCH v4 1/2] diff.c: When appropriate, use utf8_strwidth(), part1
Date: Wed, 07 Sep 2022 11:31:45 -0700 [thread overview]
Message-ID: <xmqqedwnujce.fsf@gitster.g> (raw)
In-Reply-To: <20220907043040.idqqivi3jt35jyst@tb-raspi4> ("Torsten Bögershausen"'s message of "Wed, 7 Sep 2022 06:30:40 +0200")
Torsten Bögershausen <tboegi@web.de> writes:
>
> OK - the comment can be removed.
>
> I didn't know how to read this comment:
>>...but the former may chomp a single multi-byte letter in the middle,
>> which would need to be corrected as a part of this change.
>
> After diffing into the code some more times, I think that we don't
> chomp a single byte out of an UTF-8 sequence.
When turning a/b/c vs a/B/c into a/{b->B}/c, two steps are involved.
Take common prefix and suffix (in this case 'a' and 'c') and turn
'b' vs 'B' into {b->B} is one step. The other is what to do when
prefix and suffix are long. After turning aaaaa/b/c vs aaaaa/B/c
into aaaaa/{b->B}/c, if the result is overly long, how we shorten
the prefix (i.e. aaaaa) and the suffix?
I knew the code that produces {b->B} honored '/' boundary, but I
just did not remember offhand what diff.c::pprint_rename() did in
its latter half, specifically, if it just chomped pfx and sfx as a
sequence of bytes (which would have been wrong) or insisted that the
common sequence search honors '/' boundary (which would be OK, as
byte '/' will not appear in the middle of a single multi-byte UTF-8
"letter"). I think iti s doing the latter, so it should be fine.
Thanks.
next prev parent reply other threads:[~2022-09-07 18:31 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-09 13:11 [BUG] Unicode filenames handling in `git log --stat` Alexander Meshcheryakov
2022-08-09 18:20 ` Calvin Wan
2022-08-09 19:03 ` Alexander Meshcheryakov
2022-08-09 21:36 ` Calvin Wan
2022-08-10 5:55 ` Junio C Hamano
2022-08-10 8:40 ` Torsten Bögershausen
2022-08-10 8:56 ` Alexander Meshcheryakov
2022-08-10 9:51 ` Torsten Bögershausen
2022-08-10 11:41 ` Torsten Bögershausen
2022-08-10 15:53 ` Junio C Hamano
2022-08-10 17:35 ` Torsten Bögershausen
2022-08-14 13:35 ` [PATCH/RFC 1/1] diff.c: When appropriate, use utf8_strwidth() tboegi
2022-08-14 23:12 ` Junio C Hamano
2022-08-15 6:34 ` Torsten Bögershausen
2022-08-18 21:00 ` Junio C Hamano
2022-08-27 8:50 ` [PATCH v2 " tboegi
2022-08-27 8:54 ` Torsten Bögershausen
2022-08-27 9:50 ` Eric Sunshine
2022-08-29 12:04 ` Johannes Schindelin
2022-08-29 17:54 ` Torsten Bögershausen
2022-08-29 18:37 ` Junio C Hamano
2022-09-02 9:47 ` Johannes Schindelin
2022-09-02 4:21 ` [PATCH v3 1/2] diff.c: When appropriate, use utf8_strwidth(), part1 tboegi
2022-09-02 9:39 ` Johannes Schindelin
2022-09-02 4:21 ` [PATCH v3 2/2] diff.c: More changes and tests around utf8_strwidth() tboegi
2022-09-02 10:12 ` Johannes Schindelin
2022-09-03 5:39 ` [PATCH v4 1/2] diff.c: When appropriate, use utf8_strwidth(), part1 tboegi
2022-09-05 20:46 ` Junio C Hamano
2022-09-07 4:30 ` Torsten Bögershausen
2022-09-07 18:31 ` Junio C Hamano [this message]
2022-09-03 5:39 ` [PATCH v4 2/2] diff.c: More changes and tests around utf8_strwidth() tboegi
2022-09-05 10:13 ` Johannes Schindelin
2022-09-14 15:13 ` [PATCH v5 1/1] diff.c: When appropriate, use utf8_strwidth() tboegi
2022-09-14 16:40 ` Junio C Hamano
2022-09-26 18:43 ` Torsten Bögershausen
2022-10-10 21:58 ` Junio C Hamano
2022-10-20 15:46 ` Torsten Bögershausen
2022-10-20 17:43 ` Junio C Hamano
2022-10-21 15:19 ` Torsten Bögershausen
2022-10-21 21:59 ` Junio C Hamano
2022-10-23 20:02 ` Torsten Bögershausen
2022-09-15 2:57 ` Junio C Hamano
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