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Re: Text collation

From: Ludovic Courtès
Subject: Re: Text collation
Date: Wed, 13 Dec 2006 10:28:07 +0100
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

Kevin Ryde <address@hidden> writes:

> address@hidden (Ludovic Courtès) writes:
>> +/* Throw an exception corresponding to error ERR.  */
>> +static void inline
>> +scm_locale_error (const char *func_name, int err)
>> +{
>> +  SCM s_err;
>> +
>> +  s_err = scm_from_int (err);
>> +  scm_error (scm_system_error_key, func_name,
>> +         "Failed to install locale",
>> +         scm_cons (scm_strerror (s_err), SCM_EOL),
>> +         scm_cons (s_err, SCM_EOL));
>> +}
> This doesn't display,
>     <unnamed port>:3:1: In procedure string-locale<? in expression 
> (string-locale<?
>     "x" "y" ...):
>     <unnamed port>:3:1: Failed to install locale
>     Exception during displaying of error: misc-error
>     ABORT: (system-error)

That's on a system where `USE_GNU_LOCALE_API' is not defined, right?

> It'd be good if it was a standard SCM_SYSERROR and was detected on
> creating a locale.

It's not an `SCM_SYSERROR' because the error code is provided by
variable ERR, not by ERRNO.  That said, it could use `SCM_SYSERROR_MSG'.

In order to detect locale unavailability upon locale create on non-GNU
systems, it would have to try to actually install the locale first.  I
guess we can do it, although that adds a bit of overhead.

> Incidentally, in the fallback code there seems to be something fishy
> after a failed install.  If you try to use the offending locale object
> a second time it succeeds.

Hmm, weird.  Is the locale in question available on your system?  I'll
give it a try.


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