Re: problem with special characters in file command?
- From: Andreas Leitgeb <avl@xxxxxxxxxxxxxxxxxxxxxxxx>
- Date: 30 Jun 2008 10:23:00 GMT
M. Strobel <sorry_no_mail_here@xxxxxxxxxxx> wrote:
Test session: (the file name is wrapped, there is a space in it, should
not be the problem)
-------------------------------------------------------------------------------
% set f [lindex [glob *.wav] 0]
2$wav@@4$27-06-2008@@6$00$06@@7$27-06-2008
08$45$34@@8$²²@@29$24@@91$!QBLFUX0M@@31$1@@28$0@@.wav
Probably those two non-ascii-chars cause the problem, but this is
not a principial problem, but depends on more factors:
In a nutshell, I suppose your script is running in a unicode
locale, ([encoding system] == "utf-8"), but the uploaders aren't!
What happens is, that the file*names* are probably iso8859-1
encoded, but [glob] "unicode"izes the names, so they appear
ok inside the script. But when you try to access them from
tcl, they're converted to utf-8, resulting in names that are,
well, different from the original, thus, [file readable ...]==0
To verify this theory, do this:
from bourne shell:
ls *.wav | hd
and from tclsh:
set fd [open "|hd" w]
puts $fd [lindex [glob *.wav] 0]
close $fd
I bet they differ.
To work around it, there are a couple of ways:
-) run you script in an iso8859-1 (not -15) locale,
if you need unicode-awareness, to all conversions
manually.
-) write a filename-sanitizer that renames the files to
proper utf-8. I've written such a script, so let me
know, if renaming these files is ok, and you're interested.
-) set "encoding system iso8859-1" -- vaguely equivalent
to first suggestion, except for some subtle differences.
-) wrap access to the files in pairs of "encoding system iso8859-1"
and "encoding system $originalSavedEncoding".
My script also uses some heuristics to try to tell such files
from really utf-8 named files. This would be useful, if some of
the clients actually do happen to use unicode.
.
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- From: M. Strobel
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