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authorzack <zack@138bc75d-0d04-0410-961f-82ee72b054a4>2003-07-04 18:18:54 +0000
committerzack <zack@138bc75d-0d04-0410-961f-82ee72b054a4>2003-07-04 18:18:54 +0000
commit1e12d536323a2545a537ae3fcdda617e76760f90 (patch)
treeb01fd4f285dcf287b34caf7b296d58a120edb505 /intl/bindtextdom.c
parent52aa1bf85dce176278a5e8ee4120bd817d770391 (diff)
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* intl: New directory; see intl/ChangeLog for details. * ABOUT-NLS, config.rpath: Import from gettext 0.12.1. * Makefile.tpl: all-gcc depends on maybe-all-intl. * Makefile.in: Regenerate. config: * gettext.m4: New file - copy of gettext.m4 from binutils CVS, with added AC_ISC_POSIX macro from gcc/aclocal.m4. gcc: * ABOUT-NLS: Delete. * intl: Delete entire directory. * aclocal.m4: Include ../config/gettext.m4. Delete AC_ISC_POSIX, AM_LANGINFO_CODESET, jm_GLIBC21, AM_LC_MESSAGES, AM_PATH_PROG_WITH_TEST, AM_WITH_NLS, and AM_GNU_GETTEXT. * configure.in: Use CY_GNU_GETTEXT, not AM_GNU_GETTEXT. Remove intl/Makefile from all_outputs. * configure, config.in: Regenerate. * Makefile.in: Expunge all references to intl subdirectory. Add -I../intl to INCLUDES. * intl.h: Include libintl.h if and only if ENABLE_NLS is defined. intl: * Makefile.in: Remove unnecessary capabilities for installation, build of shared libraries, generation of distribution tarballs, etc. Fix all the places that rely on the parent directory. Don't generate libgnuintl.h from anything; do generate $(objdir)/libintl.h from libgnuintl.h if necessary. Adjust DEFS for use of config.h. * libgnuintl.h.in: Rename libgnuintl.h. * README: New file. * config.charset, ref-add.sin, ref-del.sin: Delete (unused). * COPYING.LIB-2.0, COPYING.LIB-2.1: Delete (redundant). * aclocal.m4: New; generated per instructions in gettext manual. * configure.in: New; written from scratch for this configuration. * configure, config.h.in: Generated. contrib: * gcc_update: Remove gcc/intl/plural.c from list. Add new generated files intl/plural.c, intl/configure, intl/config.h.in. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@68928 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'intl/bindtextdom.c')
-rw-r--r--intl/bindtextdom.c374
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diff --git a/intl/bindtextdom.c b/intl/bindtextdom.c
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+/* Implementation of the bindtextdomain(3) function
+ Copyright (C) 1995-1998, 2000, 2001, 2002 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library 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
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _LIBC
+# include <libintl.h>
+#else
+# include "libgnuintl.h"
+#endif
+#include "gettextP.h"
+
+#ifdef _LIBC
+/* We have to handle multi-threaded applications. */
+# include <bits/libc-lock.h>
+#else
+/* Provide dummy implementation if this is outside glibc. */
+# define __libc_rwlock_define(CLASS, NAME)
+# define __libc_rwlock_wrlock(NAME)
+# define __libc_rwlock_unlock(NAME)
+#endif
+
+/* The internal variables in the standalone libintl.a must have different
+ names than the internal variables in GNU libc, otherwise programs
+ using libintl.a cannot be linked statically. */
+#if !defined _LIBC
+# define _nl_default_dirname libintl_nl_default_dirname
+# define _nl_domain_bindings libintl_nl_domain_bindings
+#endif
+
+/* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */
+#ifndef offsetof
+# define offsetof(type,ident) ((size_t)&(((type*)0)->ident))
+#endif
+
+/* @@ end of prolog @@ */
+
+/* Contains the default location of the message catalogs. */
+extern const char _nl_default_dirname[];
+#ifdef _LIBC
+extern const char _nl_default_dirname_internal[] attribute_hidden;
+#else
+# define INTUSE(name) name
+#endif
+
+/* List with bindings of specific domains. */
+extern struct binding *_nl_domain_bindings;
+
+/* Lock variable to protect the global data in the gettext implementation. */
+__libc_rwlock_define (extern, _nl_state_lock attribute_hidden)
+
+
+/* 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
+# define BIND_TEXTDOMAIN_CODESET __bind_textdomain_codeset
+# ifndef strdup
+# define strdup(str) __strdup (str)
+# endif
+#else
+# define BINDTEXTDOMAIN libintl_bindtextdomain
+# define BIND_TEXTDOMAIN_CODESET libintl_bind_textdomain_codeset
+#endif
+
+/* Prototypes for local functions. */
+static void set_binding_values PARAMS ((const char *domainname,
+ const char **dirnamep,
+ const char **codesetp));
+
+/* Specifies the directory name *DIRNAMEP and the output codeset *CODESETP
+ to be used for the DOMAINNAME message catalog.
+ If *DIRNAMEP or *CODESETP is NULL, the corresponding attribute is not
+ modified, only the current value is returned.
+ If DIRNAMEP or CODESETP is NULL, the corresponding attribute is neither
+ modified nor returned. */
+static void
+set_binding_values (domainname, dirnamep, codesetp)
+ const char *domainname;
+ const char **dirnamep;
+ const char **codesetp;
+{
+ struct binding *binding;
+ int modified;
+
+ /* Some sanity checks. */
+ if (domainname == NULL || domainname[0] == '\0')
+ {
+ if (dirnamep)
+ *dirnamep = NULL;
+ if (codesetp)
+ *codesetp = NULL;
+ return;
+ }
+
+ __libc_rwlock_wrlock (_nl_state_lock);
+
+ modified = 0;
+
+ 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 (binding != NULL)
+ {
+ if (dirnamep)
+ {
+ const char *dirname = *dirnamep;
+
+ if (dirname == NULL)
+ /* The current binding has be to returned. */
+ *dirnamep = binding->dirname;
+ else
+ {
+ /* The domain is already bound. If the new value and the old
+ one are equal we simply do nothing. Otherwise replace the
+ old binding. */
+ char *result = binding->dirname;
+ if (strcmp (dirname, result) != 0)
+ {
+ if (strcmp (dirname, INTUSE(_nl_default_dirname)) == 0)
+ result = (char *) INTUSE(_nl_default_dirname);
+ else
+ {
+#if defined _LIBC || defined HAVE_STRDUP
+ result = strdup (dirname);
+#else
+ size_t len = strlen (dirname) + 1;
+ result = (char *) malloc (len);
+ if (__builtin_expect (result != NULL, 1))
+ memcpy (result, dirname, len);
+#endif
+ }
+
+ if (__builtin_expect (result != NULL, 1))
+ {
+ if (binding->dirname != INTUSE(_nl_default_dirname))
+ free (binding->dirname);
+
+ binding->dirname = result;
+ modified = 1;
+ }
+ }
+ *dirnamep = result;
+ }
+ }
+
+ if (codesetp)
+ {
+ const char *codeset = *codesetp;
+
+ if (codeset == NULL)
+ /* The current binding has be to returned. */
+ *codesetp = binding->codeset;
+ else
+ {
+ /* The domain is already bound. If the new value and the old
+ one are equal we simply do nothing. Otherwise replace the
+ old binding. */
+ char *result = binding->codeset;
+ if (result == NULL || strcmp (codeset, result) != 0)
+ {
+#if defined _LIBC || defined HAVE_STRDUP
+ result = strdup (codeset);
+#else
+ size_t len = strlen (codeset) + 1;
+ result = (char *) malloc (len);
+ if (__builtin_expect (result != NULL, 1))
+ memcpy (result, codeset, len);
+#endif
+
+ if (__builtin_expect (result != NULL, 1))
+ {
+ if (binding->codeset != NULL)
+ free (binding->codeset);
+
+ binding->codeset = result;
+ binding->codeset_cntr++;
+ modified = 1;
+ }
+ }
+ *codesetp = result;
+ }
+ }
+ }
+ else if ((dirnamep == NULL || *dirnamep == NULL)
+ && (codesetp == NULL || *codesetp == NULL))
+ {
+ /* Simply return the default values. */
+ if (dirnamep)
+ *dirnamep = INTUSE(_nl_default_dirname);
+ if (codesetp)
+ *codesetp = NULL;
+ }
+ else
+ {
+ /* We have to create a new binding. */
+ size_t len = strlen (domainname) + 1;
+ struct binding *new_binding =
+ (struct binding *) malloc (offsetof (struct binding, domainname) + len);
+
+ if (__builtin_expect (new_binding == NULL, 0))
+ goto failed;
+
+ memcpy (new_binding->domainname, domainname, len);
+
+ if (dirnamep)
+ {
+ const char *dirname = *dirnamep;
+
+ if (dirname == NULL)
+ /* The default value. */
+ dirname = INTUSE(_nl_default_dirname);
+ else
+ {
+ if (strcmp (dirname, INTUSE(_nl_default_dirname)) == 0)
+ dirname = INTUSE(_nl_default_dirname);
+ else
+ {
+ char *result;
+#if defined _LIBC || defined HAVE_STRDUP
+ result = strdup (dirname);
+ if (__builtin_expect (result == NULL, 0))
+ goto failed_dirname;
+#else
+ size_t len = strlen (dirname) + 1;
+ result = (char *) malloc (len);
+ if (__builtin_expect (result == NULL, 0))
+ goto failed_dirname;
+ memcpy (result, dirname, len);
+#endif
+ dirname = result;
+ }
+ }
+ *dirnamep = dirname;
+ new_binding->dirname = (char *) dirname;
+ }
+ else
+ /* The default value. */
+ new_binding->dirname = (char *) INTUSE(_nl_default_dirname);
+
+ new_binding->codeset_cntr = 0;
+
+ if (codesetp)
+ {
+ const char *codeset = *codesetp;
+
+ if (codeset != NULL)
+ {
+ char *result;
+
+#if defined _LIBC || defined HAVE_STRDUP
+ result = strdup (codeset);
+ if (__builtin_expect (result == NULL, 0))
+ goto failed_codeset;
+#else
+ size_t len = strlen (codeset) + 1;
+ result = (char *) malloc (len);
+ if (__builtin_expect (result == NULL, 0))
+ goto failed_codeset;
+ memcpy (result, codeset, len);
+#endif
+ codeset = result;
+ new_binding->codeset_cntr++;
+ }
+ *codesetp = codeset;
+ new_binding->codeset = (char *) codeset;
+ }
+ else
+ new_binding->codeset = NULL;
+
+ /* 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;
+ }
+
+ modified = 1;
+
+ /* Here we deal with memory allocation failures. */
+ if (0)
+ {
+ failed_codeset:
+ if (new_binding->dirname != INTUSE(_nl_default_dirname))
+ free (new_binding->dirname);
+ failed_dirname:
+ free (new_binding);
+ failed:
+ if (dirnamep)
+ *dirnamep = NULL;
+ if (codesetp)
+ *codesetp = NULL;
+ }
+ }
+
+ /* If we modified any binding, we flush the caches. */
+ if (modified)
+ ++_nl_msg_cat_cntr;
+
+ __libc_rwlock_unlock (_nl_state_lock);
+}
+
+/* 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;
+{
+ set_binding_values (domainname, &dirname, NULL);
+ return (char *) dirname;
+}
+
+/* Specify the character encoding in which the messages from the
+ DOMAINNAME message catalog will be returned. */
+char *
+BIND_TEXTDOMAIN_CODESET (domainname, codeset)
+ const char *domainname;
+ const char *codeset;
+{
+ set_binding_values (domainname, NULL, &codeset);
+ return (char *) codeset;
+}
+
+#ifdef _LIBC
+/* Aliases for function names in GNU C Library. */
+weak_alias (__bindtextdomain, bindtextdomain);
+weak_alias (__bind_textdomain_codeset, bind_textdomain_codeset);
+#endif
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