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bug#7282: 23.2; [PATCH] Improve text composition by Input Methods on Mac


From: YAMAMOTO Mitsuharu
Subject: bug#7282: 23.2; [PATCH] Improve text composition by Input Methods on MacOSX.
Date: Thu, 28 Oct 2010 09:55:37 +0900
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shij┼Ź) APEL/10.6 Emacs/22.3 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI)

>>>>> On Wed, 27 Oct 2010 23:56:47 +0900, Keitaro Miyazaki <address@hidden> 
>>>>> 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
                                address@hidden

PNG image

PNG image


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