1 /* Copyright (C) 1995-1999, 2000-2003 Free Software Foundation, Inc.
2 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published
6 by the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19 /* Tell glibc's <string.h> to provide a prototype for stpcpy().
20 This must come before <config.h> because <config.h> may include
21 <features.h>, and once <features.h> has been included, it's too late. */
23 # define _GNU_SOURCE 1
32 #if defined _LIBC || defined HAVE_ARGZ_H
36 #include <sys/types.h>
41 /* On some strange systems still no definition of NULL is found. Sigh! */
43 # if defined __STDC__ && __STDC__
44 # define NULL ((void *) 0)
50 /* @@ end of prolog @@ */
53 /* Rename the non ANSI C functions. This is required by the standard
54 because some ANSI C functions will require linking with this object
55 file and the name space must not be polluted. */
57 # define stpcpy(dest, src) __stpcpy(dest, src)
61 #define stpcpy(dest, src) my_stpcpy(dest, src)
62 static char *stpcpy (char *dest, const char *src);
67 ISSLASH(C) tests whether C is a directory separator character.
68 IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not,
69 it may be concatenated to a directory pathname.
71 #if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
72 /* Win32, OS/2, DOS */
73 # define ISSLASH(C) ((C) == '/' || (C) == '\\')
74 # define HAS_DEVICE(P) \
75 ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \
77 # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P))
80 # define ISSLASH(C) ((C) == '/')
81 # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0])
84 /* Define function which are usually not available. */
86 #if !defined _LIBC && !defined HAVE___ARGZ_COUNT
87 /* Returns the number of strings in ARGZ. */
89 argz_count__ (const char *argz, size_t len)
94 size_t part_len = strlen (argz);
102 # define __argz_count(argz, len) argz_count__ (argz, len)
105 # define __argz_count(argz, len) INTUSE(__argz_count) (argz, len)
107 #endif /* !_LIBC && !HAVE___ARGZ_COUNT */
109 #if !defined _LIBC && !defined HAVE___ARGZ_STRINGIFY
110 /* Make '\0' separated arg vector ARGZ printable by converting all the '\0's
111 except the last into the character SEP. */
113 argz_stringify__ (char *argz, size_t len, int sep)
117 size_t part_len = strlen (argz);
124 # undef __argz_stringify
125 # define __argz_stringify(argz, len, sep) argz_stringify__ (argz, len, sep)
128 # define __argz_stringify(argz, len, sep) \
129 INTUSE(__argz_stringify) (argz, len, sep)
131 #endif /* !_LIBC && !HAVE___ARGZ_STRINGIFY */
133 #if !defined _LIBC && !defined HAVE___ARGZ_NEXT
135 argz_next__ (char *argz, size_t argz_len, const char *entry)
139 if (entry < argz + argz_len)
140 entry = strchr (entry, '\0') + 1;
142 return entry >= argz + argz_len ? NULL : (char *) entry;
151 # define __argz_next(argz, len, entry) argz_next__ (argz, len, entry)
152 #endif /* !_LIBC && !HAVE___ARGZ_NEXT */
155 /* Return number of bits set in X. */
159 /* We assume that no more than 16 bits are used. */
160 x = ((x & ~0x5555) >> 1) + (x & 0x5555);
161 x = ((x & ~0x3333) >> 2) + (x & 0x3333);
162 x = ((x >> 4) + x) & 0x0f0f;
163 x = ((x >> 8) + x) & 0xff;
169 struct loaded_l10nfile *
170 _nl_make_l10nflist (struct loaded_l10nfile **l10nfile_list,
171 const char *dirlist, size_t dirlist_len,
172 int mask, const char *language, const char *territory,
173 const char *codeset, const char *normalized_codeset,
174 const char *modifier, const char *special,
175 const char *sponsor, const char *revision,
176 const char *filename, int do_allocate)
179 struct loaded_l10nfile **lastp;
180 struct loaded_l10nfile *retval;
182 size_t dirlist_count;
186 /* If LANGUAGE contains an absolute directory specification, we ignore
188 if (IS_ABSOLUTE_PATH (language))
191 /* Allocate room for the full file name. */
192 abs_filename = (char *) malloc (dirlist_len
194 + ((mask & TERRITORY) != 0
195 ? strlen (territory) + 1 : 0)
196 + ((mask & XPG_CODESET) != 0
197 ? strlen (codeset) + 1 : 0)
198 + ((mask & XPG_NORM_CODESET) != 0
199 ? strlen (normalized_codeset) + 1 : 0)
200 + (((mask & XPG_MODIFIER) != 0
201 || (mask & CEN_AUDIENCE) != 0)
202 ? strlen (modifier) + 1 : 0)
203 + ((mask & CEN_SPECIAL) != 0
204 ? strlen (special) + 1 : 0)
205 + (((mask & CEN_SPONSOR) != 0
206 || (mask & CEN_REVISION) != 0)
207 ? (1 + ((mask & CEN_SPONSOR) != 0
208 ? strlen (sponsor) : 0)
209 + ((mask & CEN_REVISION) != 0
210 ? strlen (revision) + 1 : 0)) : 0)
211 + 1 + strlen (filename) + 1);
213 if (abs_filename == NULL)
216 /* Construct file name. */
220 memcpy (cp, dirlist, dirlist_len);
221 __argz_stringify (cp, dirlist_len, PATH_SEPARATOR);
226 cp = stpcpy (cp, language);
228 if ((mask & TERRITORY) != 0)
231 cp = stpcpy (cp, territory);
233 if ((mask & XPG_CODESET) != 0)
236 cp = stpcpy (cp, codeset);
238 if ((mask & XPG_NORM_CODESET) != 0)
241 cp = stpcpy (cp, normalized_codeset);
243 if ((mask & (XPG_MODIFIER | CEN_AUDIENCE)) != 0)
245 /* This component can be part of both syntaxes but has different
246 leading characters. For CEN we use `+', else `@'. */
247 *cp++ = (mask & CEN_AUDIENCE) != 0 ? '+' : '@';
248 cp = stpcpy (cp, modifier);
250 if ((mask & CEN_SPECIAL) != 0)
253 cp = stpcpy (cp, special);
255 if ((mask & (CEN_SPONSOR | CEN_REVISION)) != 0)
258 if ((mask & CEN_SPONSOR) != 0)
259 cp = stpcpy (cp, sponsor);
260 if ((mask & CEN_REVISION) != 0)
263 cp = stpcpy (cp, revision);
268 stpcpy (cp, filename);
270 /* Look in list of already loaded domains whether it is already
272 lastp = l10nfile_list;
273 for (retval = *l10nfile_list; retval != NULL; retval = retval->next)
274 if (retval->filename != NULL)
276 int compare = strcmp (retval->filename, abs_filename);
282 /* It's not in the list. */
287 lastp = &retval->next;
290 if (retval != NULL || do_allocate == 0)
296 dirlist_count = (dirlist_len > 0 ? __argz_count (dirlist, dirlist_len) : 1);
298 /* Allocate a new loaded_l10nfile. */
300 (struct loaded_l10nfile *)
301 malloc (sizeof (*retval)
302 + (((dirlist_count << pop (mask)) + (dirlist_count > 1 ? 1 : 0))
303 * sizeof (struct loaded_l10nfile *)));
307 retval->filename = abs_filename;
309 /* We set retval->data to NULL here; it is filled in later.
310 Setting retval->decided to 1 here means that retval does not
311 correspond to a real file (dirlist_count > 1) or is not worth
312 looking up (if an unnormalized codeset was specified). */
313 retval->decided = (dirlist_count > 1
314 || ((mask & XPG_CODESET) != 0
315 && (mask & XPG_NORM_CODESET) != 0));
318 retval->next = *lastp;
322 /* Recurse to fill the inheritance list of RETVAL.
323 If the DIRLIST is a real list (i.e. DIRLIST_COUNT > 1), the RETVAL
324 entry does not correspond to a real file; retval->filename contains
325 colons. In this case we loop across all elements of DIRLIST and
326 across all bit patterns dominated by MASK.
327 If the DIRLIST is a single directory or entirely redundant (i.e.
328 DIRLIST_COUNT == 1), we loop across all bit patterns dominated by
329 MASK, excluding MASK itself.
330 In either case, we loop down from MASK to 0. This has the effect
331 that the extra bits in the locale name are dropped in this order:
332 first the modifier, then the territory, then the codeset, then the
333 normalized_codeset. */
334 for (cnt = dirlist_count > 1 ? mask : mask - 1; cnt >= 0; --cnt)
335 if ((cnt & ~mask) == 0
336 && ((cnt & CEN_SPECIFIC) == 0 || (cnt & XPG_SPECIFIC) == 0)
337 && ((cnt & XPG_CODESET) == 0 || (cnt & XPG_NORM_CODESET) == 0))
339 if (dirlist_count > 1)
341 /* Iterate over all elements of the DIRLIST. */
344 while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir))
346 retval->successor[entries++]
347 = _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1,
348 cnt, language, territory, codeset,
349 normalized_codeset, modifier, special,
350 sponsor, revision, filename, 1);
353 retval->successor[entries++]
354 = _nl_make_l10nflist (l10nfile_list, dirlist, dirlist_len,
355 cnt, language, territory, codeset,
356 normalized_codeset, modifier, special,
357 sponsor, revision, filename, 1);
359 retval->successor[entries] = NULL;
364 /* Normalize codeset name. There is no standard for the codeset
365 names. Normalization allows the user to use any of the common
366 names. The return value is dynamically allocated and has to be
367 freed by the caller. */
369 _nl_normalize_codeset (const char *codeset, size_t name_len)
377 for (cnt = 0; cnt < name_len; ++cnt)
378 if (isalnum ((unsigned char) codeset[cnt]))
382 if (isalpha ((unsigned char) codeset[cnt]))
386 retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1);
391 wp = stpcpy (retval, "iso");
395 for (cnt = 0; cnt < name_len; ++cnt)
396 if (isalpha ((unsigned char) codeset[cnt]))
397 *wp++ = tolower ((unsigned char) codeset[cnt]);
398 else if (isdigit ((unsigned char) codeset[cnt]))
399 *wp++ = codeset[cnt];
404 return (const char *) retval;
408 /* @@ begin of epilog @@ */
410 /* We don't want libintl.a to depend on any other library. So we
411 avoid the non-standard function stpcpy. In GNU C Library this
412 function is available, though. Also allow the symbol HAVE_STPCPY
414 #if !_LIBC && !HAVE_STPCPY
416 stpcpy (char *dest, const char *src)
418 while ((*dest++ = *src++) != '\0')