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expand-file-name problem for multibyte string.
From: |
Kyotaro HORIGUCHI |
Subject: |
expand-file-name problem for multibyte string. |
Date: |
Sat, 03 Sep 2005 02:47:29 +0900 (JST) |
User-agent: |
Mew version 4.2.53 on Emacs 22.0 / Mule 5.0 (SAKAKI) / Meadow-3.00-dev (KIKU) |
I've just found that expand-file-name returns unibyte string when
name is unibyte, ignoring whether default-directory is multibyte
or not.
(expand-file-name "file" "/home/horiguti/À") => "/home/horiguti/\201\300/file"
(expand-file-name "fileÀ" "/home/horiguti/a") => "/home/horiguti/a/fileÀ"
(expand-file-name "fileÀ" "/home/horiguti/À") => "/home/horiguti/À/fileÀ"
The cause of this is that expand-file-name uses only NAME to
determine the bytewidth of the return string. But
DEFAULT-DIRECTORY is also needed. Attached patch fixes the bug,
but I confirmed it only on GNU/Linux and MS-Windows.
--
Kyotaro HORIGUCHI
--- fileio.c 07 8 2005 12:33:16 +0000 1.552
+++ fileio.c 02 9 2005 16:35:19 +0000
@@ -1299,7 +1299,8 @@
{
nm = sys_translate_unix (nm);
return make_specified_string (nm, -1, strlen (nm),
- STRING_MULTIBYTE (name));
+ STRING_MULTIBYTE (name)
+ || STRING_MULTIBYTE (default_directory));
}
#endif /* VMS */
#ifdef DOS_NT
@@ -1331,7 +1332,8 @@
if (nm == SDATA (name))
return name;
return make_specified_string (nm, -1, strlen (nm),
- STRING_MULTIBYTE (name));
+ STRING_MULTIBYTE (name)
+ || STRING_MULTIBYTE (default_directory));
#endif /* not DOS_NT */
}
}
@@ -1709,7 +1711,8 @@
#endif /* DOS_NT */
result = make_specified_string (target, -1, o - target,
- STRING_MULTIBYTE (name));
+ STRING_MULTIBYTE (name)
+ || STRING_MULTIBYTE (default_directory));
/* Again look to see if the file name has special constructs in it
and perhaps call the corresponding file handler. This is needed
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