intl/gettextP.h

   1 /* Header describing internals of libintl library.
   2    Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
   3    Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
   4
   5    This program is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU Library General Public License as published
   7    by the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with this program; if not, write to the Free Software
  17    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  18    USA.  */
  19
  20 #ifndef _GETTEXTP_H
  21 #define _GETTEXTP_H
  22
  23 #include <stddef.h>             /* Get size_t.  */
  24
  25 #ifdef _LIBC
  26 # include "../iconv/gconv_int.h"
  27 #else
  28 # if HAVE_ICONV
  29 #  include <iconv.h>
  30 # endif
  31 #endif
  32
  33 #include "loadinfo.h"
  34
  35 #include "gettext.h"            /* Get nls_uint32.  */
  36
  37 /* @@ end of prolog @@ */
  38
  39 #ifndef PARAMS
  40 # if __STDC__
  41 #  define PARAMS(args) args
  42 # else
  43 #  define PARAMS(args) ()
  44 # endif
  45 #endif
  46
  47 #ifndef internal_function
  48 # define internal_function
  49 #endif
  50
  51 /* Tell the compiler when a conditional or integer expression is
  52    almost always true or almost always false.  */
  53 #ifndef HAVE_BUILTIN_EXPECT
  54 # define __builtin_expect(expr, val) (expr)
  55 #endif
  56
  57 #ifndef W
  58 # define W(flag, data) ((flag) ? SWAP (data) : (data))
  59 #endif
  60
  61
  62 #ifdef _LIBC
  63 # include <byteswap.h>
  64 # define SWAP(i) bswap_32 (i)
  65 #else
  66 static inline nls_uint32
  67 SWAP (i)
  68      nls_uint32 i;
  69 {
  70   return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
  71 }
  72 #endif
  73
  74
  75 /* This is the representation of the expressions to determine the
  76    plural form.  */
  77 struct expression
  78 {
  79   int nargs;                    /* Number of arguments.  */
  80   enum operator
  81   {
  82     /* Without arguments:  */
  83     var,                        /* The variable "n".  */
  84     num,                        /* Decimal number.  */
  85     /* Unary operators:  */
  86     lnot,                       /* Logical NOT.  */
  87     /* Binary operators:  */
  88     mult,                       /* Multiplication.  */
  89     divide,                     /* Division.  */
  90     module,                     /* Module operation.  */
  91     plus,                       /* Addition.  */
  92     minus,                      /* Subtraction.  */
  93     less_than,                  /* Comparison.  */
  94     greater_than,               /* Comparison.  */
  95     less_or_equal,              /* Comparison.  */
  96     greater_or_equal,           /* Comparison.  */
  97     equal,                      /* Comparision for equality.  */
  98     not_equal,                  /* Comparision for inequality.  */
  99     land,                       /* Logical AND.  */
 100     lor,                        /* Logical OR.  */
 101     /* Ternary operators:  */
 102     qmop                        /* Question mark operator.  */
 103   } operation;
 104   union
 105   {
 106     unsigned long int num;      /* Number value for `num'.  */
 107     struct expression *args[3]; /* Up to three arguments.  */
 108   } val;
 109 };
 110
 111 /* This is the data structure to pass information to the parser and get
 112    the result in a thread-safe way.  */
 113 struct parse_args
 114 {
 115   const char *cp;
 116   struct expression *res;
 117 };
 118
 119
 120 /* The representation of an opened message catalog.  */
 121 struct loaded_domain
 122 {
 123   const char *data;
 124   int use_mmap;
 125   size_t mmap_size;
 126   int must_swap;
 127   nls_uint32 nstrings;
 128   struct string_desc *orig_tab;
 129   struct string_desc *trans_tab;
 130   nls_uint32 hash_size;
 131   nls_uint32 *hash_tab;
 132   int codeset_cntr;
 133 #ifdef _LIBC
 134   __gconv_t conv;
 135 #else
 136 # if HAVE_ICONV
 137   iconv_t conv;
 138 # endif
 139 #endif
 140   char **conv_tab;
 141
 142   struct expression *plural;
 143   unsigned long int nplurals;
 144 };
 145
 146 /* We want to allocate a string at the end of the struct.  But ISO C
 147    doesn't allow zero sized arrays.  */
 148 #ifdef __GNUC__
 149 # define ZERO 0
 150 #else
 151 # define ZERO 1
 152 #endif
 153
 154 /* A set of settings bound to a message domain.  Used to store settings
 155    from bindtextdomain() and bind_textdomain_codeset().  */
 156 struct binding
 157 {
 158   struct binding *next;
 159   char *dirname;
 160   int codeset_cntr;     /* Incremented each time codeset changes.  */
 161   char *codeset;
 162   char domainname[ZERO];
 163 };
 164
 165 /* A counter which is incremented each time some previous translations
 166    become invalid.
 167    This variable is part of the external ABI of the GNU libintl.  */
 168 extern int _nl_msg_cat_cntr;
 169
 170 struct loaded_l10nfile *_nl_find_domain PARAMS ((const char *__dirname,
 171                                                  char *__locale,
 172                                                  const char *__domainname,
 173                                               struct binding *__domainbinding))
 174      internal_function;
 175 void _nl_load_domain PARAMS ((struct loaded_l10nfile *__domain,
 176                               struct binding *__domainbinding))
 177      internal_function;
 178 void _nl_unload_domain PARAMS ((struct loaded_domain *__domain))
 179      internal_function;
 180 const char *_nl_init_domain_conv PARAMS ((struct loaded_l10nfile *__domain_file,
 181                                           struct loaded_domain *__domain,
 182                                           struct binding *__domainbinding))
 183      internal_function;
 184 void _nl_free_domain_conv PARAMS ((struct loaded_domain *__domain))
 185      internal_function;
 186
 187 char *_nl_find_msg PARAMS ((struct loaded_l10nfile *domain_file,
 188                             struct binding *domainbinding,
 189                             const char *msgid, size_t *lengthp))
 190      internal_function;
 191
 192 #ifdef _LIBC
 193 extern char *__gettext PARAMS ((const char *__msgid));
 194 extern char *__dgettext PARAMS ((const char *__domainname,
 195                                  const char *__msgid));
 196 extern char *__dcgettext PARAMS ((const char *__domainname,
 197                                   const char *__msgid, int __category));
 198 extern char *__ngettext PARAMS ((const char *__msgid1, const char *__msgid2,
 199                                  unsigned long int __n));
 200 extern char *__dngettext PARAMS ((const char *__domainname,
 201                                   const char *__msgid1, const char *__msgid2,
 202                                   unsigned long int n));
 203 extern char *__dcngettext PARAMS ((const char *__domainname,
 204                                    const char *__msgid1, const char *__msgid2,
 205                                    unsigned long int __n, int __category));
 206 extern char *__dcigettext PARAMS ((const char *__domainname,
 207                                    const char *__msgid1, const char *__msgid2,
 208                                    int __plural, unsigned long int __n,
 209                                    int __category));
 210 extern char *__textdomain PARAMS ((const char *__domainname));
 211 extern char *__bindtextdomain PARAMS ((const char *__domainname,
 212                                        const char *__dirname));
 213 extern char *__bind_textdomain_codeset PARAMS ((const char *__domainname,
 214                                                 const char *__codeset));
 215 #else
 216 extern char *gettext__ PARAMS ((const char *__msgid));
 217 extern char *dgettext__ PARAMS ((const char *__domainname,
 218                                  const char *__msgid));
 219 extern char *dcgettext__ PARAMS ((const char *__domainname,
 220                                   const char *__msgid, int __category));
 221 extern char *ngettext__ PARAMS ((const char *__msgid1, const char *__msgid2,
 222                                  unsigned long int __n));
 223 extern char *dngettext__ PARAMS ((const char *__domainname,
 224                                   const char *__msgid1, const char *__msgid2,
 225                                   unsigned long int __n));
 226 extern char *dcngettext__ PARAMS ((const char *__domainname,
 227                                    const char *__msgid1, const char *__msgid2,
 228                                    unsigned long int __n, int __category));
 229 extern char *dcigettext__ PARAMS ((const char *__domainname,
 230                                    const char *__msgid1, const char *__msgid2,
 231                                    int __plural, unsigned long int __n,
 232                                    int __category));
 233 extern char *textdomain__ PARAMS ((const char *__domainname));
 234 extern char *bindtextdomain__ PARAMS ((const char *__domainname,
 235                                        const char *__dirname));
 236 extern char *bind_textdomain_codeset__ PARAMS ((const char *__domainname,
 237                                                 const char *__codeset));
 238 #endif
 239
 240 #ifdef _LIBC
 241 extern void __gettext_free_exp PARAMS ((struct expression *exp))
 242      internal_function;
 243 extern int __gettextparse PARAMS ((void *arg));
 244 #else
 245 extern void gettext_free_exp__ PARAMS ((struct expression *exp))
 246      internal_function;
 247 extern int gettextparse__ PARAMS ((void *arg));
 248 #endif
 249
 250 /* @@ begin of epilog @@ */
 251
 252 #endif /* gettextP.h  */