glibc/intl/loadmsgcat.c
Ulrich Drepper 4a4d50f372 Update.
2001-03-17  Bruno Haible  <haible@clisp.cons.org>

	* intl/loadmsgcat.c (_nl_load_domain) [!_LIBC]: Use fstat, not fstat64.

2001-03-17  Bruno Haible  <haible@clisp.cons.org>

	* intl/gettextP.h (struct expression): Add operators lnot, less_than,
	greater_than, less_or_equal, greater_or_equal. Replace args2/args3
	union by a 'nargs' counter and an 'args[]' array.
	* intl/plural.y: Don't include stdarg.h.
	(new_exp): Take an array of arguments instead of varargs.
	(new_exp_0, new_exp_1, new_exp_2, new_exp_3): New functions.
	('?' ':'): Make right-associative.
	(EQUOP2): New token, replaces '=' and '!'.
	(CMPOP2): New token.
	(ADDOP2): New token, replaces '+' and '-'.
	(MULOP2): New token, replaces '*', '/' and '%'.
	('!'): New token.
	(exp): Add rules for CMPOP2 and '!'. Don't call YYABORT.
	(start): Call YYABORT here.
	(FREE_EXPRESSION): Update.
	(yylex): Don't skip "\\n". Recognize comparison and '!' operators.
	Update for new token symbols.
	* intl/loadmsgcat.c (plvar, plone, germanic_plural,
	init_germanic_plural): Update.
	* intl/dcigettext.c (_nl_find_msg): Optimize for space.
	(plural_eval): Recognize comparison and '!' operators. Optimize for
	space.

2001-03-10  Bruno Haible  <haible@clisp.cons.org>

	* intl/loadmsgcat.c (_nl_load_domain): locale_charset() doesn't return
	NULL any more.

2001-01-05  Bruno Haible  <haible@clisp.cons.org>

	* intl/loadmsgcat.c: Include headers needed for alloca().
	(freea): New macro.
	(_nl_load_domain): Add fallback code for platforms lacking alloca.
	* intl/localealias.c: (ADD_BLOCK, FREE_BLOCK): Remove macros.
	(freea): New macro.
	(read_alias_file): Simplify fallback code for platforms lacking
	alloca.

2001-01-07  Bruno Haible  <haible@clisp.cons.org>

	* intl/gettextP.h (__gettextdebug): Remove declaration.
	(__gettext_free_exp, __gettextparse): Convert prototype to K&R C
	syntax.
	(gettext_free_exp__, gettextparse__): New non-libc declarations.
	* intl/plural.y [!_LIBC]: Define gettextparse__, gettext_free_exp__,
	not __gettextparse, __gettext_free_exp.
	* intl/loadmsgcat.c [!_LIBC]: Use gettextparse__, not __gettextparse.

2001-02-24  Bruno Haible  <haible@clisp.cons.org>

	* intl/dcigettext.c: Update comment about HAVE_LOCALE_NULL.

2001-01-05  Bruno Haible  <haible@clisp.cons.org>

	* intl/loadmsgcat.c (_nl_load_domain): Add fallback code for platforms
	lacking strtoul, like SunOS4.

2001-01-05  Bruno Haible  <haible@clisp.cons.org>

	* intl/l10nflist.c (_nl_normalize_codeset): Use tolower, not _tolower.

2001-01-05  Bruno Haible  <haible@clisp.cons.org>

	* intl/bindtextdom.c (set_binding_values): Convert prototype to K&R C
	syntax.
	* intl/dcigettext.c (transcmp): Convert to K&R C syntax.
	* intl/explodename.c (_nl_find_language): Convert to K&R C syntax.
	* intl/plural.y (__gettext_free_exp, yylex, yyerror): Convert to K&R C
	syntax.

2001-01-07  Bruno Haible  <haible@clisp.cons.org>

	* intl/gettextP.h (gettext__, dgettext__, dcgettext__, textdomain__,
	bindtextdomain__, bind_textdomain_codeset__): New declarations, from
	old libgettext.h.
	* intl/bindtextdom.c: Include libgnuintl.h instead of libgettext.h.
	* intl/dcgettext.c: Likewise.
	* intl/dcigettext.c: Likewise.
	* intl/dcngettext.c: Likewise.
	* intl/dngettext.c: Likewise.
	* intl/finddomain.c: Likewise.
	* intl/ngettext.c: Likewise.
	* intl/textdomain.c: Likewise.
	* intl/dgettext.c: Include libgnuintl.h instead of libgettext.h.
	Include gettextP.h.
	* intl/gettext.c: Likewise.  Don't include locale.h.

2001-03-17  Bruno Haible  <haible@clisp.cons.org>

	* intl/gettextP.h (ZERO): New macro.
	(struct binding): Always use ZERO.
	* intl/bindtextdom.c (offsetof): Provide fallback for platforms that
	lack it, like SunOS4.
	(set_binding_values): Use offsetof, not sizeof.
	* intl/dcigettext.c (offsetof): Provide fallback for platforms that
	lack it, like SunOS4.
	(ZERO): Remove macro.
	(struct transmem_list): Use ZERO.
	(DCIGETTEXT): Use offsetof, not sizeof.

2001-03-17  Bruno Haible  <haible@clisp.cons.org>

	* intl/gettextP.h: Include <stddef.h>. Include gettext.h, for
	nls_uint32.
	* intl/bindtextdom.c: Don't include gettext.h.
	* intl/dcgettext.c: Likewise.
	* intl/dcigettext.c: Likewise.
	* intl/dcngettext.c: Likewise.
	* intl/dngettext.c: Likewise.
	* intl/finddomain.c: Likewise.
	* intl/localealias.c: Likewise.
	* intl/ngettext.c: Likewise.
	* intl/plural.y: Likewise.
	* intl/textdomain.c: Likewise.

2001-03-17  Bruno Haible  <haible@clisp.cons.org>

	* intl/gettext.h: Don't include <stdio.h>.

2001-03-17  Bruno Haible  <haible@clisp.cons.org>

	* intl/Makefile (CPPFLAGS): Set LOCALEDIR instead of GNULOCALEDIR.
	* intl/dcigettext.c (_nl_default_dirname): Initialize with LOCALEDIR.
2001-03-20 01:00:20 +00:00

500 lines
13 KiB
C

/* Load needed message catalogs.
Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
The GNU C Library 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 of the
License, or (at your option) any later version.
The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Tell glibc's <string.h> to provide a prototype for mempcpy().
This must come before <config.h> because <config.h> may include
<features.h>, and once <features.h> has been included, it's too late. */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef __GNUC__
# define alloca __builtin_alloca
# define HAVE_ALLOCA 1
#else
# if defined HAVE_ALLOCA_H || defined _LIBC
# include <alloca.h>
# else
# ifdef _AIX
#pragma alloca
# else
# ifndef alloca
char *alloca ();
# endif
# endif
# endif
#endif
#if defined STDC_HEADERS || defined _LIBC
# include <stdlib.h>
#endif
#if defined HAVE_STRING_H || defined _LIBC
# include <string.h>
#else
# include <strings.h>
#endif
#if defined HAVE_UNISTD_H || defined _LIBC
# include <unistd.h>
#endif
#ifdef _LIBC
# include <langinfo.h>
# include <locale.h>
#endif
#if (defined HAVE_MMAP && defined HAVE_MUNMAP && !defined DISALLOW_MMAP) \
|| (defined _LIBC && defined _POSIX_MAPPED_FILES)
# include <sys/mman.h>
# undef HAVE_MMAP
# define HAVE_MMAP 1
#else
# undef HAVE_MMAP
#endif
#include "gettext.h"
#include "gettextP.h"
#ifdef _LIBC
# include "../locale/localeinfo.h"
#endif
/* @@ end of prolog @@ */
#ifdef _LIBC
/* Rename the non ISO C functions. This is required by the standard
because some ISO C functions will require linking with this object
file and the name space must not be polluted. */
# define open __open
# define close __close
# define read __read
# define mmap __mmap
# define munmap __munmap
#endif
/* 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 PLURAL_PARSE __gettextparse
#else
# define PLURAL_PARSE gettextparse__
#endif
/* For those losing systems which don't have `alloca' we have to add
some additional code emulating it. */
#ifdef HAVE_ALLOCA
# define freea(p) /* nothing */
#else
# define alloca(n) malloc (n)
# define freea(p) free (p)
#endif
/* We need a sign, whether a new catalog was loaded, which can be associated
with all translations. This is important if the translations are
cached by one of GCC's features. */
int _nl_msg_cat_cntr;
#if defined __GNUC__ \
|| (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)
/* These structs are the constant expression for the germanic plural
form determination. It represents the expression "n != 1". */
static const struct expression plvar =
{
.nargs = 0,
.operation = var,
};
static const struct expression plone =
{
.nargs = 0,
.operation = num,
.val =
{
.num = 1
}
};
static struct expression germanic_plural =
{
.nargs = 2,
.operation = not_equal,
.val =
{
.args =
{
[0] = (struct expression *) &plvar,
[1] = (struct expression *) &plone
}
}
};
# define INIT_GERMANIC_PLURAL()
#else
/* For compilers without support for ISO C 99 struct/union initializers:
Initialization at run-time. */
static struct expression plvar;
static struct expression plone;
static struct expression germanic_plural;
static void
init_germanic_plural ()
{
if (plone.val.num == 0)
{
plvar.nargs = 0;
plvar.operation = var;
plone.nargs = 0;
plone.operation = num;
plone.val.num = 1;
germanic_plural.nargs = 2;
germanic_plural.operation = not_equal;
germanic_plural.val.args[0] = &plvar;
germanic_plural.val.args[1] = &plone;
}
}
# define INIT_GERMANIC_PLURAL() init_germanic_plural ()
#endif
/* Load the message catalogs specified by FILENAME. If it is no valid
message catalog do nothing. */
void
internal_function
_nl_load_domain (domain_file)
struct loaded_l10nfile *domain_file;
{
int fd;
size_t size;
#ifdef _LIBC
struct stat64 st;
#else
struct stat st;
#endif
struct mo_file_header *data = (struct mo_file_header *) -1;
int use_mmap = 0;
struct loaded_domain *domain;
char *nullentry;
size_t nullentrylen;
domain_file->decided = 1;
domain_file->data = NULL;
/* If the record does not represent a valid locale the FILENAME
might be NULL. This can happen when according to the given
specification the locale file name is different for XPG and CEN
syntax. */
if (domain_file->filename == NULL)
return;
/* Try to open the addressed file. */
fd = open (domain_file->filename, O_RDONLY);
if (fd == -1)
return;
/* We must know about the size of the file. */
if (
#ifdef _LIBC
__builtin_expect (fstat64 (fd, &st) != 0, 0)
#else
__builtin_expect (fstat (fd, &st) != 0, 0)
#endif
|| __builtin_expect ((size = (size_t) st.st_size) != st.st_size, 0)
|| __builtin_expect (size < sizeof (struct mo_file_header), 0))
{
/* Something went wrong. */
close (fd);
return;
}
#ifdef HAVE_MMAP
/* Now we are ready to load the file. If mmap() is available we try
this first. If not available or it failed we try to load it. */
data = (struct mo_file_header *) mmap (NULL, size, PROT_READ,
MAP_PRIVATE, fd, 0);
if (__builtin_expect (data != (struct mo_file_header *) -1, 1))
{
/* mmap() call was successful. */
close (fd);
use_mmap = 1;
}
#endif
/* If the data is not yet available (i.e. mmap'ed) we try to load
it manually. */
if (data == (struct mo_file_header *) -1)
{
size_t to_read;
char *read_ptr;
data = (struct mo_file_header *) malloc (size);
if (data == NULL)
return;
to_read = size;
read_ptr = (char *) data;
do
{
long int nb = (long int) read (fd, read_ptr, to_read);
if (nb <= 0)
{
#ifdef EINTR
if (nb == -1 && errno == EINTR)
continue;
#endif
close (fd);
return;
}
read_ptr += nb;
to_read -= nb;
}
while (to_read > 0);
close (fd);
}
/* Using the magic number we can test whether it really is a message
catalog file. */
if (__builtin_expect (data->magic != _MAGIC && data->magic != _MAGIC_SWAPPED,
0))
{
/* The magic number is wrong: not a message catalog file. */
#ifdef HAVE_MMAP
if (use_mmap)
munmap ((caddr_t) data, size);
else
#endif
free (data);
return;
}
domain = (struct loaded_domain *) malloc (sizeof (struct loaded_domain));
if (domain == NULL)
return;
domain_file->data = domain;
domain->data = (char *) data;
domain->use_mmap = use_mmap;
domain->mmap_size = size;
domain->must_swap = data->magic != _MAGIC;
/* Fill in the information about the available tables. */
switch (W (domain->must_swap, data->revision))
{
case 0:
domain->nstrings = W (domain->must_swap, data->nstrings);
domain->orig_tab = (struct string_desc *)
((char *) data + W (domain->must_swap, data->orig_tab_offset));
domain->trans_tab = (struct string_desc *)
((char *) data + W (domain->must_swap, data->trans_tab_offset));
domain->hash_size = W (domain->must_swap, data->hash_tab_size);
domain->hash_tab = (nls_uint32 *)
((char *) data + W (domain->must_swap, data->hash_tab_offset));
break;
default:
/* This is an invalid revision. */
#ifdef HAVE_MMAP
if (use_mmap)
munmap ((caddr_t) data, size);
else
#endif
free (data);
free (domain);
domain_file->data = NULL;
return;
}
/* Now find out about the character set the file is encoded with.
This can be found (in textual form) in the entry "". If this
entry does not exist or if this does not contain the `charset='
information, we will assume the charset matches the one the
current locale and we don't have to perform any conversion. */
#ifdef _LIBC
domain->conv = (__gconv_t) -1;
#else
# if HAVE_ICONV
domain->conv = (iconv_t) -1;
# endif
#endif
domain->conv_tab = NULL;
nullentry = _nl_find_msg (domain_file, "", &nullentrylen);
if (nullentry != NULL)
{
#if defined _LIBC || HAVE_ICONV
const char *charsetstr;
charsetstr = strstr (nullentry, "charset=");
if (charsetstr != NULL)
{
size_t len;
char *charset;
const char *outcharset;
charsetstr += strlen ("charset=");
len = strcspn (charsetstr, " \t\n");
charset = (char *) alloca (len + 1);
# if defined _LIBC || HAVE_MEMPCPY
*((char *) mempcpy (charset, charsetstr, len)) = '\0';
# else
memcpy (charset, charsetstr, len);
charset[len] = '\0';
# endif
/* The output charset should normally be determined by the
locale. But sometimes the locale is not used or not correctly
set up, so we provide a possibility for the user to override
this. Moreover, the value specified through
bind_textdomain_codeset overrides both. */
if (domain_file->domainbinding != NULL
&& domain_file->domainbinding->codeset != NULL)
outcharset = domain_file->domainbinding->codeset;
else
{
outcharset = getenv ("OUTPUT_CHARSET");
if (outcharset == NULL || outcharset[0] == '\0')
{
# ifdef _LIBC
outcharset = (*_nl_current[LC_CTYPE])->values[_NL_ITEM_INDEX (CODESET)].string;
# else
# if HAVE_ICONV
extern const char *locale_charset (void);
outcharset = locale_charset ();
# endif
# endif
}
}
# ifdef _LIBC
/* We always want to use transliteration. */
outcharset = norm_add_slashes (outcharset, "TRANSLIT");
charset = norm_add_slashes (charset, NULL);
if (__gconv_open (outcharset, charset, &domain->conv,
GCONV_AVOID_NOCONV)
!= __GCONV_OK)
domain->conv = (__gconv_t) -1;
# else
# if HAVE_ICONV
domain->conv = iconv_open (outcharset, charset);
# endif
# endif
freea (charset);
}
#endif /* _LIBC || HAVE_ICONV */
}
/* Also look for a plural specification. */
if (nullentry != NULL)
{
const char *plural;
const char *nplurals;
plural = strstr (nullentry, "plural=");
nplurals = strstr (nullentry, "nplurals=");
if (plural == NULL || nplurals == NULL)
goto no_plural;
else
{
/* First get the number. */
char *endp;
unsigned long int n;
struct parse_args args;
nplurals += 9;
while (*nplurals != '\0' && isspace (*nplurals))
++nplurals;
#if defined HAVE_STRTOUL || defined _LIBC
n = strtoul (nplurals, &endp, 10);
#else
for (endp = nplurals, n = 0; *endp >= '0' && *endp <= '9'; endp++)
n = n * 10 + (*endp - '0');
#endif
domain->nplurals = n;
if (nplurals == endp)
goto no_plural;
/* Due to the restrictions bison imposes onto the interface of the
scanner function we have to put the input string and the result
passed up from the parser into the same structure which address
is passed down to the parser. */
plural += 7;
args.cp = plural;
if (PLURAL_PARSE (&args) != 0)
goto no_plural;
domain->plural = args.res;
}
}
else
{
/* By default we are using the Germanic form: singular form only
for `one', the plural form otherwise. Yes, this is also what
English is using since English is a Germanic language. */
no_plural:
INIT_GERMANIC_PLURAL ();
domain->plural = &germanic_plural;
domain->nplurals = 2;
}
}
#ifdef _LIBC
void
internal_function
_nl_unload_domain (domain)
struct loaded_domain *domain;
{
if (domain->plural != &germanic_plural)
__gettext_free_exp (domain->plural);
if (domain->conv_tab != NULL && domain->conv_tab != (char **) -1)
free (domain->conv_tab);
if (domain->conv != (__gconv_t) -1)
__gconv_close (domain->conv);
# ifdef _POSIX_MAPPED_FILES
if (domain->use_mmap)
munmap ((caddr_t) domain->data, domain->mmap_size);
else
# endif /* _POSIX_MAPPED_FILES */
free ((void *) domain->data);
free (domain);
}
#endif