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