Initial revision

From-SVN: r19443

gcc/intl/textdomain.c

+/* Implementation of the textdomain(3) function.
+   Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+   Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+
+   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 <config.h>
+#endif
+
+#if defined STDC_HEADERS || defined _LIBC
+# include <stdlib.h>
+#endif
+
+#if defined STDC_HEADERS || defined HAVE_STRING_H || defined _LIBC
+# include <string.h>
+#else
+# include <strings.h>
+# ifndef memcpy
+#  define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
+# endif
+#endif
+
+#ifdef _LIBC
+# include <libintl.h>
+#else
+# include "libgettext.h"
+#endif
+
+/* @@ end of prolog @@ */
+
+/* Name of the default text domain.  */
+extern const char _nl_default_default_domain[];
+
+/* Default text domain in which entries for gettext(3) are to be found.  */
+extern const char *_nl_current_default_domain;
+
+
+/* Names for the libintl functions are a problem.  They must not clash
+   with existing names and they should follow ANSI C.  But this source
+   code is also used in GNU C Library where the names have a __
+   prefix.  So we have to make a difference here.  */
+#ifdef _LIBC
+# define TEXTDOMAIN __textdomain
+# ifndef strdup
+#  define strdup(str) __strdup (str)
+# endif
+#else
+# define TEXTDOMAIN textdomain__
+#endif
+
+/* Set the current default message catalog to DOMAINNAME.
+   If DOMAINNAME is null, return the current default.
+   If DOMAINNAME is "", reset to the default of "messages".  */
+char *
+TEXTDOMAIN (domainname)
+     const char *domainname;
+{
+  char *old;
+
+  /* A NULL pointer requests the current setting.  */
+  if (domainname == NULL)
+    return (char *) _nl_current_default_domain;
+
+  old = (char *) _nl_current_default_domain;
+
+  /* If domain name is the null string set to default domain "messages".  */
+  if (domainname[0] == '\0'
+      || strcmp (domainname, _nl_default_default_domain) == 0)
+    _nl_current_default_domain = _nl_default_default_domain;
+  else
+    {
+      /* If the following malloc fails `_nl_current_default_domain'
+	 will be NULL.  This value will be returned and so signals we
+	 are out of core.  */
+#if defined _LIBC || defined HAVE_STRDUP
+      _nl_current_default_domain = strdup (domainname);
+#else
+      size_t len = strlen (domainname) + 1;
+      char *cp = (char *) malloc (len);
+      if (cp != NULL)
+	memcpy (cp, domainname, len);
+      _nl_current_default_domain = cp;
+#endif
+    }
+
+  if (old != _nl_default_default_domain)
+    free (old);
+
+  return (char *) _nl_current_default_domain;
+}
+
+#ifdef _LIBC
+/* Alias for function name in GNU C Library.  */
+weak_alias (__textdomain, textdomain);
+#endif