GNU bug report logs - #7282
23.2; [PATCH] Improve text composition by Input Methods on MacOSX.

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From: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
To: Keitaro Miyazaki <keitaro.miyazaki <at> gmail.com>
Cc: 7282 <at> debbugs.gnu.org, YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
Subject: bug#7282: 23.2; [PATCH] Improve text composition by Input Methods on MacOSX.
Date: Thu, 28 Oct 2010 09:55:37 +0900

[Message part 1 (text/plain, inline)]

>>>>> On Wed, 27 Oct 2010 23:56:47 +0900, Keitaro Miyazaki <keitaro.miyazaki <at> gmail.com> said:

> Yes, NSString counts length of string as number of Unicode characters,
> and I suppose range is counted in a similar way.

>      "... The length method returns the total number of Unicode
> characters in the string ..."

>        NSString Class Reference
>        <http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html>

In this context, "number of Unicode characters" should be read as
"number of `unichar' values", where the type `unichar' is of 16-bit
width.  Actually, it is confusing.

Also, selected range handling is not enough for the following case:

  (activate Kotoeri) a i u e o left left left

The first screenshot is for the NS port with your patch, and the
second one is for my Mac port
(http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01439.html).

				     YAMAMOTO Mitsuharu
				mituharu <at> math.s.chiba-u.ac.jp

[ns_port.png (image/png, inline)]

[mac_port.png (image/png, inline)]

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