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Re: PO files and Emacs

From: Andreas Schwab
Subject: Re: PO files and Emacs
Date: Mon, 11 Mar 2002 20:29:35 +0100
User-agent: Gnus/5.090005 (Oort Gnus v0.05) Emacs/21.2.50 (ia64-suse-linux)

Karl Eichwalder <address@hidden> writes:

|> Eli Zaretskii <address@hidden> writes:
|> > Sure.  Karl, where do I get the version you suggest to include?
|> It was attached to my first mail.  I'll attach it here again as po.el,
|> plus this check:
|>     (file-exists-p (car (cdr arg-list)))
|> I also attach file-4.1.5.hu.po; loading this Hungarian file will set
|> the coding system to iso-8859-2/latin-2:
|>     emacs --no-site-file -q -l po.el file-4.1.5.hu.po
|> Now you can edit and save the file.  Starting with a non-existing file
|> emacs will produce an error message when you will try to save it:
|>     emacs --no-site-file -q -l po.el not-there.hu.po
|> Enter:
|>     # a comment line
|>     C-x C-s
|>     error--> and: Wrong type argument: stringp, 1

That's because your function is called with the same arguments as
find-operation-coding-system, which itself gets the same arguments as the
I/O primitives.  Those are, for file I/O, insert-file-contents and
write-region.  The latter has the signature


which means that (car (cdr arg-list)) == START.  You should just move the
second test before the first one.

|> ;;;###autoload
|> (defun po-find-file-coding-system (arg-list)
|>   "Return a Mule (DECODING . ENCODING) pair, according to PO file charset.
|> Called through file-coding-system-alist, before the file is visited for 
|>   (and (file-exists-p (car (cdr arg-list)))
|>        (eq (car arg-list) 'insert-file-contents)

  (and (eq (car arg-list) 'insert-file-contents)
       (file-exists-p (car (cdr arg-list)))


Andreas Schwab, SuSE Labs, address@hidden
SuSE GmbH, Deutschherrnstr. 15-19, D-90429 N├╝rnberg
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