gettext.h

   1 /*
   2  * Slightly edited for centerim. Added _() and N_() macros, added config.h
   3  * include, _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS is always 0.
   4  */
   5 /* Convenience header for conditional use of GNU <libintl.h>.
   6    Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009 Free Software Foundation, Inc.
   7
   8    This program is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 3, or (at your option)
  11    any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    Library General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public
  19    License along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  21    USA.  */
  22
  23 #ifndef _LIBGETTEXT_H
  24 #define _LIBGETTEXT_H 1
  25
  26 #include "config.h"
  27
  28 /* NLS can be disabled through the configure --disable-nls option.  */
  29 #if ENABLE_NLS
  30
  31 /* Get declarations of GNU message catalog functions.  */
  32 # include <libintl.h>
  33
  34 /* You can set the DEFAULT_TEXT_DOMAIN macro to specify the domain used by
  35    the gettext() and ngettext() macros.  This is an alternative to calling
  36    textdomain(), and is useful for libraries.  */
  37 # ifdef DEFAULT_TEXT_DOMAIN
  38 #  undef gettext
  39 #  define gettext(Msgid) \
  40      dgettext (DEFAULT_TEXT_DOMAIN, Msgid)
  41 #  undef ngettext
  42 #  define ngettext(Msgid1, Msgid2, N) \
  43      dngettext (DEFAULT_TEXT_DOMAIN, Msgid1, Msgid2, N)
  44 # endif
  45
  46 #else
  47
  48 /* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
  49    chokes if dcgettext is defined as a macro.  So include it now, to make
  50    later inclusions of <locale.h> a NOP.  We don't include <libintl.h>
  51    as well because people using "gettext.h" will not include <libintl.h>,
  52    and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
  53    is OK.  */
  54 #if defined(__sun)
  55 # include <locale.h>
  56 #endif
  57
  58 /* Many header files from the libstdc++ coming with g++ 3.3 or newer include
  59    <libintl.h>, which chokes if dcgettext is defined as a macro.  So include
  60    it now, to make later inclusions of <libintl.h> a NOP.  */
  61 #if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3)
  62 # include <cstdlib>
  63 # if (__GLIBC__ >= 2) || _GLIBCXX_HAVE_LIBINTL_H
  64 #  include <libintl.h>
  65 # endif
  66 #endif
  67
  68 /* Disabled NLS.
  69    The casts to 'const char *' serve the purpose of producing warnings
  70    for invalid uses of the value returned from these functions.
  71    On pre-ANSI systems without 'const', the config.h file is supposed to
  72    contain "#define const".  */
  73 # undef gettext
  74 # define gettext(Msgid) ((const char *) (Msgid))
  75 # undef dgettext
  76 # define dgettext(Domainname, Msgid) ((void) (Domainname), gettext (Msgid))
  77 # undef dcgettext
  78 # define dcgettext(Domainname, Msgid, Category) \
  79     ((void) (Category), dgettext (Domainname, Msgid))
  80 # undef ngettext
  81 # define ngettext(Msgid1, Msgid2, N) \
  82     ((N) == 1 \
  83      ? ((void) (Msgid2), (const char *) (Msgid1)) \
  84      : ((void) (Msgid1), (const char *) (Msgid2)))
  85 # undef dngettext
  86 # define dngettext(Domainname, Msgid1, Msgid2, N) \
  87     ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
  88 # undef dcngettext
  89 # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
  90     ((void) (Category), dngettext(Domainname, Msgid1, Msgid2, N))
  91 # undef textdomain
  92 # define textdomain(Domainname) ((const char *) (Domainname))
  93 # undef bindtextdomain
  94 # define bindtextdomain(Domainname, Dirname) \
  95     ((void) (Domainname), (const char *) (Dirname))
  96 # undef bind_textdomain_codeset
  97 # define bind_textdomain_codeset(Domainname, Codeset) \
  98     ((void) (Domainname), (const char *) (Codeset))
  99
 100 #endif
 101
 102 /* A pseudo function call that serves as a marker for the automated
 103    extraction of messages, but does not call gettext().  The run-time
 104    translation is done at a different place in the code.
 105    The argument, String, should be a literal string.  Concatenated strings
 106    and other string expressions won't work.
 107    The macro's expansion is not parenthesized, so that it is suitable as
 108    initializer for static 'char[]' or 'const char[]' variables.  */
 109 #define gettext_noop(String) String
 110
 111 /* The separator between msgctxt and msgid in a .mo file.  */
 112 #define GETTEXT_CONTEXT_GLUE "\004"
 113
 114 /* Pseudo function calls, taking a MSGCTXT and a MSGID instead of just a
 115    MSGID.  MSGCTXT and MSGID must be string literals.  MSGCTXT should be
 116    short and rarely need to change.
 117    The letter 'p' stands for 'particular' or 'special'.  */
 118 #ifdef DEFAULT_TEXT_DOMAIN
 119 # define pgettext(Msgctxt, Msgid) \
 120    pgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
 121 #else
 122 # define pgettext(Msgctxt, Msgid) \
 123    pgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
 124 #endif
 125 #define dpgettext(Domainname, Msgctxt, Msgid) \
 126   pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, LC_MESSAGES)
 127 #define dcpgettext(Domainname, Msgctxt, Msgid, Category) \
 128   pgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, Category)
 129 #ifdef DEFAULT_TEXT_DOMAIN
 130 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
 131    npgettext_aux (DEFAULT_TEXT_DOMAIN, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
 132 #else
 133 # define npgettext(Msgctxt, Msgid, MsgidPlural, N) \
 134    npgettext_aux (NULL, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
 135 #endif
 136 #define dnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
 137   npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, LC_MESSAGES)
 138 #define dcnpgettext(Domainname, Msgctxt, Msgid, MsgidPlural, N, Category) \
 139   npgettext_aux (Domainname, Msgctxt GETTEXT_CONTEXT_GLUE Msgid, Msgid, MsgidPlural, N, Category)
 140
 141 #ifdef __GNUC__
 142 __inline
 143 #else
 144 #ifdef __cplusplus
 145 inline
 146 #endif
 147 #endif
 148 static const char *
 149 pgettext_aux (const char *domain,
 150               const char *msg_ctxt_id, const char *msgid,
 151               int category)
 152 {
 153   const char *translation = dcgettext (domain, msg_ctxt_id, category);
 154   if (translation == msg_ctxt_id)
 155     return msgid;
 156   else
 157     return translation;
 158 }
 159
 160 #ifdef __GNUC__
 161 __inline
 162 #else
 163 #ifdef __cplusplus
 164 inline
 165 #endif
 166 #endif
 167 static const char *
 168 npgettext_aux (const char *domain,
 169                const char *msg_ctxt_id, const char *msgid,
 170                const char *msgid_plural, unsigned long int n,
 171                int category)
 172 {
 173   const char *translation =
 174     dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
 175   if (translation == msg_ctxt_id || translation == msgid_plural)
 176     return (n == 1 ? msgid : msgid_plural);
 177   else
 178     return translation;
 179 }
 180
 181 /* The same thing extended for non-constant arguments.  Here MSGCTXT and MSGID
 182    can be arbitrary expressions.  But for string literals these macros are
 183    less efficient than those above.  */
 184
 185 #include <string.h>
 186
 187 #define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS 0
 188 #if 0
 189 #define _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS \
 190   (((__GNUC__ >= 3 || __GNUG__ >= 2) && !__STRICT_ANSI__) \
 191    /* || __STDC_VERSION__ >= 199901L */ )
 192 #endif
 193
 194 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
 195 #include <stdlib.h>
 196 #endif
 197
 198 #define pgettext_expr(Msgctxt, Msgid) \
 199   dcpgettext_expr (NULL, Msgctxt, Msgid, LC_MESSAGES)
 200 #define dpgettext_expr(Domainname, Msgctxt, Msgid) \
 201   dcpgettext_expr (Domainname, Msgctxt, Msgid, LC_MESSAGES)
 202
 203 #ifdef __GNUC__
 204 __inline
 205 #else
 206 #ifdef __cplusplus
 207 inline
 208 #endif
 209 #endif
 210 static const char *
 211 dcpgettext_expr (const char *domain,
 212                  const char *msgctxt, const char *msgid,
 213                  int category)
 214 {
 215   size_t msgctxt_len = strlen (msgctxt) + 1;
 216   size_t msgid_len = strlen (msgid) + 1;
 217   const char *translation;
 218 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
 219   char msg_ctxt_id[msgctxt_len + msgid_len];
 220 #else
 221   char buf[1024];
 222   char *msg_ctxt_id =
 223     (msgctxt_len + msgid_len <= sizeof (buf)
 224      ? buf
 225      : (char *) malloc (msgctxt_len + msgid_len));
 226   if (msg_ctxt_id != NULL)
 227 #endif
 228     {
 229       memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
 230       msg_ctxt_id[msgctxt_len - 1] = '\004';
 231       memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
 232       translation = dcgettext (domain, msg_ctxt_id, category);
 233 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
 234       if (msg_ctxt_id != buf)
 235         free (msg_ctxt_id);
 236 #endif
 237       if (translation != msg_ctxt_id)
 238         return translation;
 239     }
 240   return msgid;
 241 }
 242
 243 #define npgettext_expr(Msgctxt, Msgid, MsgidPlural, N) \
 244   dcnpgettext_expr (NULL, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
 245 #define dnpgettext_expr(Domainname, Msgctxt, Msgid, MsgidPlural, N) \
 246   dcnpgettext_expr (Domainname, Msgctxt, Msgid, MsgidPlural, N, LC_MESSAGES)
 247
 248 #ifdef __GNUC__
 249 __inline
 250 #else
 251 #ifdef __cplusplus
 252 inline
 253 #endif
 254 #endif
 255 static const char *
 256 dcnpgettext_expr (const char *domain,
 257                   const char *msgctxt, const char *msgid,
 258                   const char *msgid_plural, unsigned long int n,
 259                   int category)
 260 {
 261   size_t msgctxt_len = strlen (msgctxt) + 1;
 262   size_t msgid_len = strlen (msgid) + 1;
 263   const char *translation;
 264 #if _LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
 265   char msg_ctxt_id[msgctxt_len + msgid_len];
 266 #else
 267   char buf[1024];
 268   char *msg_ctxt_id =
 269     (msgctxt_len + msgid_len <= sizeof (buf)
 270      ? buf
 271      : (char *) malloc (msgctxt_len + msgid_len));
 272   if (msg_ctxt_id != NULL)
 273 #endif
 274     {
 275       memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
 276       msg_ctxt_id[msgctxt_len - 1] = '\004';
 277       memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
 278       translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
 279 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
 280       if (msg_ctxt_id != buf)
 281         free (msg_ctxt_id);
 282 #endif
 283       if (!(translation == msg_ctxt_id || translation == msgid_plural))
 284         return translation;
 285     }
 286   return (n == 1 ? msgid : msgid_plural);
 287 }
 288
 289 /* Custom macros to make life easier */
 290 #define _(Msgid1) gettext(Msgid1)
 291 #define N_(Msgid1) (Msgid1)
 292
 293 #endif /* _LIBGETTEXT_H */