www.pudn.com > gedit-2.8.3.rar > bindtextdom.c

/* Implementation of the bindtextdomain(3) function 
   Copyright (C) 1995, 1996, 1997, 1998 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  
#endif 
 
#if defined STDC_HEADERS || defined _LIBC 
# include  
#else 
# ifdef HAVE_MALLOC_H 
#  include  
# else 
void free (); 
# endif 
#endif 
 
#if defined HAVE_STRING_H || defined _LIBC 
# include  
#else 
# include  
# ifndef memcpy 
#  define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num) 
# endif 
#endif 
 
#ifdef _LIBC 
# include  
#else 
# include "libgettext.h" 
#endif 
#include "gettext.h" 
#include "gettextP.h" 
 
/* @@ end of prolog @@ */ 
 
/* Contains the default location of the message catalogs.  */ 
extern const char _nl_default_dirname[]; 
 
/* List with bindings of specific domains.  */ 
extern struct binding *_nl_domain_bindings; 
 
 
/* 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 BINDTEXTDOMAIN __bindtextdomain 
# ifndef strdup 
#  define strdup(str) __strdup (str) 
# endif 
#else 
# define BINDTEXTDOMAIN bindtextdomain__ 
#endif 
 
/* Specify that the DOMAINNAME message catalog will be found 
   in DIRNAME rather than in the system locale data base.  */ 
char * 
BINDTEXTDOMAIN (domainname, dirname) 
     const char *domainname; 
     const char *dirname; 
{ 
  struct binding *binding; 
 
  /* Some sanity checks.  */ 
  if (domainname == NULL || domainname[0] == '\0') 
    return NULL; 
 
  for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next) 
    { 
      int compare = strcmp (domainname, binding->domainname); 
      if (compare == 0) 
	/* We found it!  */ 
	break; 
      if (compare < 0) 
	{ 
	  /* It is not in the list.  */ 
	  binding = NULL; 
	  break; 
	} 
    } 
 
  if (dirname == NULL) 
    /* The current binding has be to returned.  */ 
    return binding == NULL ? (char *) _nl_default_dirname : binding->dirname; 
 
  if (binding != NULL) 
    { 
      /* The domain is already bound.  If the new value and the old 
	 one are equal we simply do nothing.  Otherwise replace the 
	 old binding.  */ 
      if (strcmp (dirname, binding->dirname) != 0) 
	{ 
	  char *new_dirname; 
 
	  if (strcmp (dirname, _nl_default_dirname) == 0) 
	    new_dirname = (char *) _nl_default_dirname; 
	  else 
	    { 
#if defined _LIBC || defined HAVE_STRDUP 
	      new_dirname = strdup (dirname); 
	      if (new_dirname == NULL) 
		return NULL; 
#else 
	      size_t len = strlen (dirname) + 1; 
	      new_dirname = (char *) malloc (len); 
	      if (new_dirname == NULL) 
		return NULL; 
 
	      memcpy (new_dirname, dirname, len); 
#endif 
	    } 
 
	  if (binding->dirname != _nl_default_dirname) 
	    free (binding->dirname); 
 
	  binding->dirname = new_dirname; 
	} 
    } 
  else 
    { 
      /* We have to create a new binding.  */ 
#if !defined _LIBC && !defined HAVE_STRDUP 
      size_t len; 
#endif 
      struct binding *new_binding = 
	(struct binding *) malloc (sizeof (*new_binding)); 
 
      if (new_binding == NULL) 
	return NULL; 
 
#if defined _LIBC || defined HAVE_STRDUP 
      new_binding->domainname = strdup (domainname); 
      if (new_binding->domainname == NULL) 
	return NULL; 
#else 
      len = strlen (domainname) + 1; 
      new_binding->domainname = (char *) malloc (len); 
      if (new_binding->domainname == NULL) 
	return NULL; 
      memcpy (new_binding->domainname, domainname, len); 
#endif 
 
      if (strcmp (dirname, _nl_default_dirname) == 0) 
	new_binding->dirname = (char *) _nl_default_dirname; 
      else 
	{ 
#if defined _LIBC || defined HAVE_STRDUP 
	  new_binding->dirname = strdup (dirname); 
	  if (new_binding->dirname == NULL) 
	    return NULL; 
#else 
	  len = strlen (dirname) + 1; 
	  new_binding->dirname = (char *) malloc (len); 
	  if (new_binding->dirname == NULL) 
	    return NULL; 
	  memcpy (new_binding->dirname, dirname, len); 
#endif 
	} 
 
      /* Now enqueue it.  */ 
      if (_nl_domain_bindings == NULL 
	  || strcmp (domainname, _nl_domain_bindings->domainname) < 0) 
	{ 
	  new_binding->next = _nl_domain_bindings; 
	  _nl_domain_bindings = new_binding; 
	} 
      else 
	{ 
	  binding = _nl_domain_bindings; 
	  while (binding->next != NULL 
		 && strcmp (domainname, binding->next->domainname) > 0) 
	    binding = binding->next; 
 
	  new_binding->next = binding->next; 
	  binding->next = new_binding; 
	} 
 
      binding = new_binding; 
    } 
 
  return binding->dirname; 
} 
 
#ifdef _LIBC 
/* Alias for function name in GNU C Library.  */ 
weak_alias (__bindtextdomain, bindtextdomain); 
#endif