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/* Compatibility code for gettext-using-catgets interface.
Copyright (C) 1995, 1997 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <gsm_config.h>
#endif
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#else
char *getenv ();
# ifdef HAVE_MALLOC_H
# include <malloc.h>
# endif
#endif
#ifdef HAVE_NL_TYPES_H
# include <nl_types.h>
#endif
#include "libgettext.h"
/* @@ end of prolog @@ */
/* XPG3 defines the result of `setlocale (category, NULL)' as:
``Directs `setlocale()' to query `category' and return the current
setting of `local'.''
However it does not specify the exact format. And even worse: POSIX
defines this not at all. So we can use this feature only on selected
system (e.g. those using GNU C Library). */
#ifdef _LIBC
# define HAVE_LOCALE_NULL
#endif
/* The catalog descriptor. */
static nl_catd catalog = (nl_catd) -1;
/* Name of the default catalog. */
static const char default_catalog_name[] = "messages";
/* Name of currently used catalog. */
static const char *catalog_name = default_catalog_name;
/* Get ID for given string. If not found return -1. */
static int msg_to_cat_id PARAMS ((const char *msg));
/* Substitution for systems lacking this function in their C library. */
#if !_LIBC && !HAVE_STPCPY
static char *stpcpy PARAMS ((char *dest, const char *src));
#endif
/* Set currently used domain/catalog. */
char *
textdomain (domainname)
const char *domainname;
{
nl_catd new_catalog;
char *new_name;
size_t new_name_len;
char *lang;
#if defined HAVE_SETLOCALE && defined HAVE_LC_MESSAGES \
&& defined HAVE_LOCALE_NULL
lang = setlocale (LC_MESSAGES, NULL);
#else
lang = getenv ("LC_ALL");
if (lang == NULL || lang[0] == '\0')
{
lang = getenv ("LC_MESSAGES");
if (lang == NULL || lang[0] == '\0')
lang = getenv ("LANG");
}
#endif
if (lang == NULL || lang[0] == '\0')
lang = "C";
/* See whether name of currently used domain is asked. */
if (domainname == NULL)
return (char *) catalog_name;
if (domainname[0] == '\0')
domainname = default_catalog_name;
/* Compute length of added path element. */
new_name_len = sizeof (LOCALEDIR) - 1 + 1 + strlen (lang)
+ sizeof ("/LC_MESSAGES/") - 1 + sizeof (PACKAGE) - 1
+ sizeof (".cat");
new_name = (char *) malloc (new_name_len);
if (new_name == NULL)
return NULL;
strcpy (new_name, PACKAGE);
new_catalog = catopen (new_name, 0);
if (new_catalog == (nl_catd) -1)
{
/* NLSPATH search didn't work, try absolute path */
sprintf (new_name, "%s/%s/LC_MESSAGES/%s.cat", LOCALEDIR, lang,
PACKAGE);
new_catalog = catopen (new_name, 0);
if (new_catalog == (nl_catd) -1)
{
free (new_name);
return (char *) catalog_name;
}
}
/* Close old catalog. */
if (catalog != (nl_catd) -1)
catclose (catalog);
if (catalog_name != default_catalog_name)
free ((char *) catalog_name);
catalog = new_catalog;
catalog_name = new_name;
return (char *) catalog_name;
}
char *
bindtextdomain (domainname, dirname)
const char *domainname;
const char *dirname;
{
#if HAVE_SETENV || HAVE_PUTENV
char *old_val, *new_val, *cp;
size_t new_val_len;
/* This does not make much sense here but to be compatible do it. */
if (domainname == NULL)
return NULL;
/* Compute length of added path element. If we use setenv we don't need
the first byts for NLSPATH=, but why complicate the code for this
peanuts. */
new_val_len = sizeof ("NLSPATH=") - 1 + strlen (dirname)
+ sizeof ("/%L/LC_MESSAGES/%N.cat");
old_val = getenv ("NLSPATH");
if (old_val == NULL || old_val[0] == '\0')
{
old_val = NULL;
new_val_len += 1 + sizeof (LOCALEDIR) - 1
+ sizeof ("/%L/LC_MESSAGES/%N.cat");
}
else
new_val_len += strlen (old_val);
new_val = (char *) malloc (new_val_len);
if (new_val == NULL)
return NULL;
# if HAVE_SETENV
cp = new_val;
# else
cp = stpcpy (new_val, "NLSPATH=");
# endif
cp = stpcpy (cp, dirname);
cp = stpcpy (cp, "/%L/LC_MESSAGES/%N.cat:");
if (old_val == NULL)
{
# if __STDC__
stpcpy (cp, LOCALEDIR "/%L/LC_MESSAGES/%N.cat");
# else
cp = stpcpy (cp, LOCALEDIR);
stpcpy (cp, "/%L/LC_MESSAGES/%N.cat");
# endif
}
else
stpcpy (cp, old_val);
# if HAVE_SETENV
setenv ("NLSPATH", new_val, 1);
free (new_val);
# else
putenv (new_val);
/* Do *not* free the environment entry we just entered. It is used
from now on. */
# endif
#endif
return (char *) domainname;
}
#undef gettext
char *
gettext (msg)
const char *msg;
{
int msgid;
if (msg == NULL || catalog == (nl_catd) -1)
return (char *) msg;
/* Get the message from the catalog. We always use set number 1.
The message ID is computed by the function `msg_to_cat_id'
which works on the table generated by `po-to-tbl'. */
msgid = msg_to_cat_id (msg);
if (msgid == -1)
return (char *) msg;
return catgets (catalog, 1, msgid, (char *) msg);
}
/* Look through the table `_msg_tbl' which has `_msg_tbl_length' entries
for the one equal to msg. If it is found return the ID. In case when
the string is not found return -1. */
static int
msg_to_cat_id (msg)
const char *msg;
{
int cnt;
for (cnt = 0; cnt < _msg_tbl_length; ++cnt)
if (strcmp (msg, _msg_tbl[cnt]._msg) == 0)
return _msg_tbl[cnt]._msg_number;
return -1;
}
/* @@ begin of epilog @@ */
/* We don't want libintl.a to depend on any other library. So we
avoid the non-standard function stpcpy. In GNU C Library this
function is available, though. Also allow the symbol HAVE_STPCPY
to be defined. */
#if !_LIBC && !HAVE_STPCPY
static char *
stpcpy (dest, src)
char *dest;
const char *src;
{
while ((*dest++ = *src++) != '\0')
/* Do nothing. */ ;
return dest - 1;
}
#endif
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