bug#4090: [emacs-w3m:10999] Re: bug#4090: Bug#541704: emacs-snapshot ruins w3m-el-snapshot tables

bug#4090: [emacs-w3m:10999] Re: bug#4090: Bug#541704: emacs-snapshot ruins w3m-el-snapshot tables

[Hideyuki SHIRAI]

From: jidanni@jidanni.org said
Subject: [emacs-w3m:10999] Re: bug#4090: Bug#541704: emacs-snapshot ruins w3m-el-snapshot tables
Message-ID: <87hbw5yoc4.fsf@jidanni.org>
Date: Wed, 19 Aug 2009 02:22:03 +0800

> OK, here is what I see using the current Debian versions of these packages.

Thank you for your report.

There is a possibility for this problem to occur with emacs23 or
later. A problem occurs for the width of the box drawing
character changed. So, calculation of string-width goes miss,
and it becomes for that like your image.


For example 
(BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL, #x253c)
・Emacs22.3
(char-width (make-char 'mule-unicode-2500-33ff 32 92)) => 1

・Emacs23.1
(char-width (make-char 'mule-unicode-2500-33ff 32 92)) => 2


It is very difficult to correct this problem on all
emacsen. Therefore, please use emacs-w3m because of the
following settings. 

(setq w3m-use-symbol nil)

This change was commited to CVS HEAD of emacs-w3m.

TNX.

-- 
Hideyuki SHIRAI (mailto:shirai@meadowy.org)

bug#4090: [emacs-w3m:10999] Re: bug#4090: Bug#541704: emacs-snapshot ruins w3m-el-snapshot tables

[Kenichi Handa]

In article <20090819.151543.04477307.shirai.hideyuki@meadowy.org>, Hideyuki SHIRAI (=?iso-2022-jp?B?GyRCR3IwZj0oOVQbKEI=?=) <shirai@meadowy.org> writes:

> For example 
> (BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL, #x253c)
> ・Emacs22.3
> (char-width (make-char 'mule-unicode-2500-33ff 32 92)) => 1

> ・Emacs23.1
> (char-width (make-char 'mule-unicode-2500-33ff 32 92)) => 2

FYI, with Emacs 23, in non-CJK environment, that value is 1.

---
Kenichi Handa
handa@m17n.org

bug#4090: [emacs-w3m:10999] Re: bug#4090: Bug#541704: emacs-snapshot ruins w3m-el-snapshot tables

[jidanni]

OK, thanks 白井先生. By the way
$ cat /tmp/q
Táisǎo Zhōnggōng
$ export LC_ALL=zh_TW.UTF-8
$ set -- -sony-fixed-medium-r-normal--16-120-100-100-c-80-iso8859-1
$ emacs23        -Q -fn $1 /tmp/q #looks great
$ emacs-snapshot -Q -fn $1 /tmp/q #looks terrible
$ LC_ALL=C emacs-snapshot -Q -fn $1 /tmp/q #looks great
The great looking ones use
x:-efont-fixed-bold-r-normal--16-160-75-75-c-80-iso10646-1 (#x1CE)
the bad looking ones use xft:-arphic- etc. I wish I could make them all
great looking.