1 /* Implementation of the internal dcigettext function.
2 Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19 /* Tell glibc's <string.h> to provide a prototype for mempcpy().
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
30 #include <sys/types.h>
33 # define alloca __builtin_alloca
34 # define HAVE_ALLOCA 1
36 # if defined HAVE_ALLOCA_H || defined _LIBC
54 # define __set_errno(val) errno = (val)
61 #if !HAVE_STRCHR && !defined _LIBC
67 #if defined HAVE_UNISTD_H || defined _LIBC
73 #if defined HAVE_SYS_PARAM_H || defined _LIBC
74 # include <sys/param.h>
81 # include "libgnuintl.h"
83 #include "hash-string.h"
85 /* Thread safetyness. */
87 # include <bits/libc-lock.h>
89 /* Provide dummy implementation if this is outside glibc. */
90 # define __libc_lock_define_initialized(CLASS, NAME)
91 # define __libc_lock_lock(NAME)
92 # define __libc_lock_unlock(NAME)
93 # define __libc_rwlock_define_initialized(CLASS, NAME)
94 # define __libc_rwlock_rdlock(NAME)
95 # define __libc_rwlock_unlock(NAME)
98 /* Alignment of types. */
99 #if defined __GNUC__ && __GNUC__ >= 2
100 # define alignof(TYPE) __alignof__ (TYPE)
102 # define alignof(TYPE) \
103 ((int) &((struct { char dummy1; TYPE dummy2; } *) 0)->dummy2)
106 /* The internal variables in the standalone libintl.a must have different
107 names than the internal variables in GNU libc, otherwise programs
108 using libintl.a cannot be linked statically. */
110 # define _nl_default_default_domain _nl_default_default_domain__
111 # define _nl_current_default_domain _nl_current_default_domain__
112 # define _nl_default_dirname _nl_default_dirname__
113 # define _nl_domain_bindings _nl_domain_bindings__
116 /* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */
118 # define offsetof(type,ident) ((size_t)&(((type*)0)->ident))
121 /* @@ end of prolog @@ */
124 /* Rename the non ANSI C functions. This is required by the standard
125 because some ANSI C functions will require linking with this object
126 file and the name space must not be polluted. */
127 # define getcwd __getcwd
129 # define stpcpy __stpcpy
131 # define tfind __tfind
133 # if !defined HAVE_GETCWD
135 # define getcwd(buf, max) getwd (buf)
140 static char *stpcpy PARAMS ((char *dest, const char *src));
142 # ifndef HAVE_MEMPCPY
143 static void *mempcpy PARAMS ((void *dest, const void *src, size_t n));
147 /* Amount to increase buffer size by in each try. */
150 /* The following is from pathmax.h. */
151 /* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define
152 PATH_MAX but might cause redefinition warnings when sys/param.h is
153 later included (as on MORE/BSD 4.3). */
154 #if defined _POSIX_VERSION || (defined HAVE_LIMITS_H && !defined __GNUC__)
158 #ifndef _POSIX_PATH_MAX
159 # define _POSIX_PATH_MAX 255
162 #if !defined PATH_MAX && defined _PC_PATH_MAX
163 # define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf ("/", _PC_PATH_MAX))
166 /* Don't include sys/param.h if it already has been. */
167 #if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN
168 # include <sys/param.h>
171 #if !defined PATH_MAX && defined MAXPATHLEN
172 # define PATH_MAX MAXPATHLEN
176 # define PATH_MAX _POSIX_PATH_MAX
180 ISSLASH(C) tests whether C is a directory separator character.
181 IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not,
182 it may be concatenated to a directory pathname.
183 IS_PATH_WITH_DIR(P) tests whether P contains a directory specification.
185 #if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
186 /* Win32, OS/2, DOS */
187 # define ISSLASH(C) ((C) == '/' || (C) == '\\')
188 # define HAS_DEVICE(P) \
189 ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \
191 # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P))
192 # define IS_PATH_WITH_DIR(P) \
193 (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P))
196 # define ISSLASH(C) ((C) == '/')
197 # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0])
198 # define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL)
201 /* XPG3 defines the result of `setlocale (category, NULL)' as:
202 ``Directs `setlocale()' to query `category' and return the current
203 setting of `local'.''
204 However it does not specify the exact format. Neither do SUSV2 and
205 ISO C 99. So we can use this feature only on selected systems (e.g.
206 those using GNU C Library). */
207 #if defined _LIBC || (defined __GNU_LIBRARY__ && __GNU_LIBRARY__ >= 2)
208 # define HAVE_LOCALE_NULL
211 /* This is the type used for the search tree where known translations
213 struct known_translation_t
215 /* Domain in which to search. */
221 /* State of the catalog counter at the point the string was found. */
224 /* Catalog where the string was found. */
225 struct loaded_l10nfile *domain;
227 /* And finally the translation. */
228 const char *translation;
229 size_t translation_length;
231 /* Pointer to the string in question. */
235 /* Root of the search tree with known translations. We can use this
236 only if the system provides the `tsearch' function family. */
237 #if defined HAVE_TSEARCH || defined _LIBC
243 # define tsearch __tsearch
246 /* Function to compare two entries in the table of known translations. */
247 static int transcmp PARAMS ((const void *p1, const void *p2));
253 const struct known_translation_t *s1;
254 const struct known_translation_t *s2;
257 s1 = (const struct known_translation_t *) p1;
258 s2 = (const struct known_translation_t *) p2;
260 result = strcmp (s1->msgid, s2->msgid);
263 result = strcmp (s1->domainname, s2->domainname);
265 /* We compare the category last (though this is the cheapest
266 operation) since it is hopefully always the same (namely
268 result = s1->category - s2->category;
275 /* Name of the default domain used for gettext(3) prior any call to
276 textdomain(3). The default value for this is "messages". */
277 const char _nl_default_default_domain[] = "messages";
279 /* Value used as the default domain for gettext(3). */
280 const char *_nl_current_default_domain = _nl_default_default_domain;
282 /* Contains the default location of the message catalogs. */
283 const char _nl_default_dirname[] = LOCALEDIR;
285 /* List with bindings of specific domains created by bindtextdomain()
287 struct binding *_nl_domain_bindings;
289 /* Prototypes for local functions. */
290 static char *plural_lookup PARAMS ((struct loaded_l10nfile *domain,
292 const char *translation,
293 size_t translation_len))
295 static unsigned long int plural_eval PARAMS ((struct expression *pexp,
296 unsigned long int n))
298 static const char *category_to_name PARAMS ((int category)) internal_function;
299 static const char *guess_category_value PARAMS ((int category,
300 const char *categoryname))
304 /* For those loosing systems which don't have `alloca' we have to add
305 some additional code emulating it. */
307 /* Nothing has to be done. */
308 # define ADD_BLOCK(list, address) /* nothing */
309 # define FREE_BLOCKS(list) /* nothing */
314 struct block_list *next;
316 # define ADD_BLOCK(list, addr) \
318 struct block_list *newp = (struct block_list *) malloc (sizeof (*newp)); \
319 /* If we cannot get a free block we cannot add the new element to \
321 if (newp != NULL) { \
322 newp->address = (addr); \
323 newp->next = (list); \
327 # define FREE_BLOCKS(list) \
329 while (list != NULL) { \
330 struct block_list *old = list; \
336 # define alloca(size) (malloc (size))
337 #endif /* have alloca */
341 /* List of blocks allocated for translations. */
342 typedef struct transmem_list
344 struct transmem_list *next;
347 static struct transmem_list *transmem_list;
349 typedef unsigned char transmem_block_t;
353 /* Names for the libintl functions are a problem. They must not clash
354 with existing names and they should follow ANSI C. But this source
355 code is also used in GNU C Library where the names have a __
356 prefix. So we have to make a difference here. */
358 # define DCIGETTEXT __dcigettext
360 # define DCIGETTEXT dcigettext__
363 /* Lock variable to protect the global data in the gettext implementation. */
365 __libc_rwlock_define_initialized (, _nl_state_lock)
368 /* Checking whether the binaries runs SUID must be done and glibc provides
369 easier methods therefore we make a difference here. */
371 # define ENABLE_SECURE __libc_enable_secure
372 # define DETERMINE_SECURE
380 # ifndef HAVE_GETEUID
381 # define geteuid() getuid()
383 # ifndef HAVE_GETEGID
384 # define getegid() getgid()
386 static int enable_secure;
387 # define ENABLE_SECURE (enable_secure == 1)
388 # define DETERMINE_SECURE \
389 if (enable_secure == 0) \
391 if (getuid () != geteuid () || getgid () != getegid ()) \
394 enable_secure = -1; \
398 /* Look up MSGID in the DOMAINNAME message catalog for the current
399 CATEGORY locale and, if PLURAL is nonzero, search over string
400 depending on the plural form determined by N. */
402 DCIGETTEXT (domainname, msgid1, msgid2, plural, n, category)
403 const char *domainname;
411 struct block_list *block_list = NULL;
413 struct loaded_l10nfile *domain;
414 struct binding *binding;
415 const char *categoryname;
416 const char *categoryvalue;
417 char *dirname, *xdomainname;
422 #if defined HAVE_TSEARCH || defined _LIBC
423 struct known_translation_t *search;
424 struct known_translation_t **foundp = NULL;
427 size_t domainname_len;
429 /* If no real MSGID is given return NULL. */
433 __libc_rwlock_rdlock (_nl_state_lock);
435 /* If DOMAINNAME is NULL, we are interested in the default domain. If
436 CATEGORY is not LC_MESSAGES this might not make much sense but the
437 definition left this undefined. */
438 if (domainname == NULL)
439 domainname = _nl_current_default_domain;
441 #if defined HAVE_TSEARCH || defined _LIBC
442 msgid_len = strlen (msgid1) + 1;
444 /* Try to find the translation among those which we found at
446 search = (struct known_translation_t *)
447 alloca (offsetof (struct known_translation_t, msgid) + msgid_len);
448 memcpy (search->msgid, msgid1, msgid_len);
449 search->domainname = (char *) domainname;
450 search->category = category;
452 foundp = (struct known_translation_t **) tfind (search, &root, transcmp);
453 if (foundp != NULL && (*foundp)->counter == _nl_msg_cat_cntr)
455 /* Now deal with plural. */
457 retval = plural_lookup ((*foundp)->domain, n, (*foundp)->translation,
458 (*foundp)->translation_length);
460 retval = (char *) (*foundp)->translation;
462 __libc_rwlock_unlock (_nl_state_lock);
467 /* Preserve the `errno' value. */
470 /* See whether this is a SUID binary or not. */
473 /* First find matching binding. */
474 for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next)
476 int compare = strcmp (domainname, binding->domainname);
482 /* It is not in the list. */
489 dirname = (char *) _nl_default_dirname;
490 else if (IS_ABSOLUTE_PATH (binding->dirname))
491 dirname = binding->dirname;
494 /* We have a relative path. Make it absolute now. */
495 size_t dirname_len = strlen (binding->dirname) + 1;
499 path_max = (unsigned int) PATH_MAX;
500 path_max += 2; /* The getcwd docs say to do this. */
504 dirname = (char *) alloca (path_max + dirname_len);
505 ADD_BLOCK (block_list, dirname);
508 ret = getcwd (dirname, path_max);
509 if (ret != NULL || errno != ERANGE)
512 path_max += path_max / 2;
513 path_max += PATH_INCR;
518 /* We cannot get the current working directory. Don't signal an
519 error but simply return the default string. */
520 FREE_BLOCKS (block_list);
521 __libc_rwlock_unlock (_nl_state_lock);
522 __set_errno (saved_errno);
525 /* Use the Germanic plural rule. */
526 : n == 1 ? (char *) msgid1 : (char *) msgid2);
529 stpcpy (stpcpy (strchr (dirname, '\0'), "/"), binding->dirname);
532 /* Now determine the symbolic name of CATEGORY and its value. */
533 categoryname = category_to_name (category);
534 categoryvalue = guess_category_value (category, categoryname);
536 domainname_len = strlen (domainname);
537 xdomainname = (char *) alloca (strlen (categoryname)
538 + domainname_len + 5);
539 ADD_BLOCK (block_list, xdomainname);
541 stpcpy (mempcpy (stpcpy (stpcpy (xdomainname, categoryname), "/"),
542 domainname, domainname_len),
545 /* Creating working area. */
546 single_locale = (char *) alloca (strlen (categoryvalue) + 1);
547 ADD_BLOCK (block_list, single_locale);
550 /* Search for the given string. This is a loop because we perhaps
551 got an ordered list of languages to consider for the translation. */
554 /* Make CATEGORYVALUE point to the next element of the list. */
555 while (categoryvalue[0] != '\0' && categoryvalue[0] == ':')
557 if (categoryvalue[0] == '\0')
559 /* The whole contents of CATEGORYVALUE has been searched but
560 no valid entry has been found. We solve this situation
561 by implicitly appending a "C" entry, i.e. no translation
563 single_locale[0] = 'C';
564 single_locale[1] = '\0';
568 char *cp = single_locale;
569 while (categoryvalue[0] != '\0' && categoryvalue[0] != ':')
570 *cp++ = *categoryvalue++;
573 /* When this is a SUID binary we must not allow accessing files
574 outside the dedicated directories. */
575 if (ENABLE_SECURE && IS_PATH_WITH_DIR (single_locale))
576 /* Ingore this entry. */
580 /* If the current locale value is C (or POSIX) we don't load a
581 domain. Return the MSGID. */
582 if (strcmp (single_locale, "C") == 0
583 || strcmp (single_locale, "POSIX") == 0)
585 FREE_BLOCKS (block_list);
586 __libc_rwlock_unlock (_nl_state_lock);
587 __set_errno (saved_errno);
590 /* Use the Germanic plural rule. */
591 : n == 1 ? (char *) msgid1 : (char *) msgid2);
595 /* Find structure describing the message catalog matching the
596 DOMAINNAME and CATEGORY. */
597 domain = _nl_find_domain (dirname, single_locale, xdomainname, binding);
601 retval = _nl_find_msg (domain, binding, msgid1, &retlen);
607 for (cnt = 0; domain->successor[cnt] != NULL; ++cnt)
609 retval = _nl_find_msg (domain->successor[cnt], binding,
614 domain = domain->successor[cnt];
622 /* Found the translation of MSGID1 in domain DOMAIN:
623 starting at RETVAL, RETLEN bytes. */
624 FREE_BLOCKS (block_list);
625 __set_errno (saved_errno);
626 #if defined HAVE_TSEARCH || defined _LIBC
629 /* Create a new entry and add it to the search tree. */
630 struct known_translation_t *newp;
632 newp = (struct known_translation_t *)
633 malloc (offsetof (struct known_translation_t, msgid)
634 + msgid_len + domainname_len + 1);
638 mempcpy (newp->msgid, msgid1, msgid_len);
639 memcpy (newp->domainname, domainname, domainname_len + 1);
640 newp->category = category;
641 newp->counter = _nl_msg_cat_cntr;
642 newp->domain = domain;
643 newp->translation = retval;
644 newp->translation_length = retlen;
646 /* Insert the entry in the search tree. */
647 foundp = (struct known_translation_t **)
648 tsearch (newp, &root, transcmp);
650 || __builtin_expect (*foundp != newp, 0))
651 /* The insert failed. */
657 /* We can update the existing entry. */
658 (*foundp)->counter = _nl_msg_cat_cntr;
659 (*foundp)->domain = domain;
660 (*foundp)->translation = retval;
661 (*foundp)->translation_length = retlen;
664 /* Now deal with plural. */
666 retval = plural_lookup (domain, n, retval, retlen);
668 __libc_rwlock_unlock (_nl_state_lock);
679 _nl_find_msg (domain_file, domainbinding, msgid, lengthp)
680 struct loaded_l10nfile *domain_file;
681 struct binding *domainbinding;
685 struct loaded_domain *domain;
690 if (domain_file->decided == 0)
691 _nl_load_domain (domain_file, domainbinding);
693 if (domain_file->data == NULL)
696 domain = (struct loaded_domain *) domain_file->data;
698 /* Locate the MSGID and its translation. */
699 if (domain->hash_size > 2 && domain->hash_tab != NULL)
701 /* Use the hashing table. */
702 nls_uint32 len = strlen (msgid);
703 nls_uint32 hash_val = hash_string (msgid);
704 nls_uint32 idx = hash_val % domain->hash_size;
705 nls_uint32 incr = 1 + (hash_val % (domain->hash_size - 2));
709 nls_uint32 nstr = W (domain->must_swap, domain->hash_tab[idx]);
712 /* Hash table entry is empty. */
715 /* Compare msgid with the original string at index nstr-1.
716 We compare the lengths with >=, not ==, because plural entries
717 are represented by strings with an embedded NUL. */
718 if (W (domain->must_swap, domain->orig_tab[nstr - 1].length) >= len
720 domain->data + W (domain->must_swap,
721 domain->orig_tab[nstr - 1].offset))
728 if (idx >= domain->hash_size - incr)
729 idx -= domain->hash_size - incr;
737 /* Try the default method: binary search in the sorted array of
742 top = domain->nstrings;
747 act = (bottom + top) / 2;
748 cmp_val = strcmp (msgid, (domain->data
749 + W (domain->must_swap,
750 domain->orig_tab[act].offset)));
753 else if (cmp_val > 0)
758 /* No translation was found. */
763 /* The translation was found at index ACT. If we have to convert the
764 string to use a different character set, this is the time. */
765 result = ((char *) domain->data
766 + W (domain->must_swap, domain->trans_tab[act].offset));
767 resultlen = W (domain->must_swap, domain->trans_tab[act].length) + 1;
769 #if defined _LIBC || HAVE_ICONV
770 if (domain->codeset_cntr
771 != (domainbinding != NULL ? domainbinding->codeset_cntr : 0))
773 /* The domain's codeset has changed through bind_textdomain_codeset()
774 since the message catalog was initialized or last accessed. We
775 have to reinitialize the converter. */
776 _nl_free_domain_conv (domain);
777 _nl_init_domain_conv (domain_file, domain, domainbinding);
782 domain->conv != (__gconv_t) -1
785 domain->conv != (iconv_t) -1
790 /* We are supposed to do a conversion. First allocate an
791 appropriate table with the same structure as the table
792 of translations in the file, where we can put the pointers
793 to the converted strings in.
794 There is a slight complication with plural entries. They
795 are represented by consecutive NUL terminated strings. We
796 handle this case by converting RESULTLEN bytes, including
799 if (domain->conv_tab == NULL
800 && ((domain->conv_tab = (char **) calloc (domain->nstrings,
803 /* Mark that we didn't succeed allocating a table. */
804 domain->conv_tab = (char **) -1;
806 if (__builtin_expect (domain->conv_tab == (char **) -1, 0))
807 /* Nothing we can do, no more memory. */
810 if (domain->conv_tab[act] == NULL)
812 /* We haven't used this string so far, so it is not
813 translated yet. Do this now. */
814 /* We use a bit more efficient memory handling.
815 We allocate always larger blocks which get used over
816 time. This is faster than many small allocations. */
817 __libc_lock_define_initialized (static, lock)
818 # define INITIAL_BLOCK_SIZE 4080
819 static unsigned char *freemem;
820 static size_t freemem_size;
822 const unsigned char *inbuf;
823 unsigned char *outbuf;
826 transmem_block_t *transmem_list = NULL;
829 __libc_lock_lock (lock);
831 inbuf = (const unsigned char *) result;
832 outbuf = freemem + sizeof (size_t);
837 transmem_block_t *newmem;
839 size_t non_reversible;
842 if (freemem_size < sizeof (size_t))
845 res = __gconv (domain->conv,
846 &inbuf, inbuf + resultlen,
848 outbuf + freemem_size - sizeof (size_t),
851 if (res == __GCONV_OK || res == __GCONV_EMPTY_INPUT)
854 if (res != __GCONV_FULL_OUTPUT)
856 __libc_lock_unlock (lock);
863 const char *inptr = (const char *) inbuf;
864 size_t inleft = resultlen;
865 char *outptr = (char *) outbuf;
868 if (freemem_size < sizeof (size_t))
871 outleft = freemem_size - sizeof (size_t);
872 if (iconv (domain->conv,
873 (ICONV_CONST char **) &inptr, &inleft,
877 outbuf = (unsigned char *) outptr;
882 __libc_lock_unlock (lock);
889 /* We must allocate a new buffer or resize the old one. */
890 if (malloc_count > 0)
893 freemem_size = malloc_count * INITIAL_BLOCK_SIZE;
894 newmem = (transmem_block_t *) realloc (transmem_list,
898 transmem_list = transmem_list->next;
901 struct transmem_list *old = transmem_list;
903 transmem_list = transmem_list->next;
911 freemem_size = INITIAL_BLOCK_SIZE;
912 newmem = (transmem_block_t *) malloc (freemem_size);
914 if (__builtin_expect (newmem == NULL, 0))
918 __libc_lock_unlock (lock);
923 /* Add the block to the list of blocks we have to free
925 newmem->next = transmem_list;
926 transmem_list = newmem;
928 freemem = newmem->data;
929 freemem_size -= offsetof (struct transmem_list, data);
931 transmem_list = newmem;
935 outbuf = freemem + sizeof (size_t);
938 /* We have now in our buffer a converted string. Put this
939 into the table of conversions. */
940 *(size_t *) freemem = outbuf - freemem - sizeof (size_t);
941 domain->conv_tab[act] = (char *) freemem;
942 /* Shrink freemem, but keep it aligned. */
943 freemem_size -= outbuf - freemem;
945 freemem += freemem_size & (alignof (size_t) - 1);
946 freemem_size = freemem_size & ~ (alignof (size_t) - 1);
948 __libc_lock_unlock (lock);
951 /* Now domain->conv_tab[act] contains the translation of all
952 the plural variants. */
953 result = domain->conv_tab[act] + sizeof (size_t);
954 resultlen = *(size_t *) domain->conv_tab[act];
958 /* The result string is converted. */
960 #endif /* _LIBC || HAVE_ICONV */
962 *lengthp = resultlen;
967 /* Look up a plural variant. */
970 plural_lookup (domain, n, translation, translation_len)
971 struct loaded_l10nfile *domain;
973 const char *translation;
974 size_t translation_len;
976 struct loaded_domain *domaindata = (struct loaded_domain *) domain->data;
977 unsigned long int index;
980 index = plural_eval (domaindata->plural, n);
981 if (index >= domaindata->nplurals)
982 /* This should never happen. It means the plural expression and the
983 given maximum value do not match. */
986 /* Skip INDEX strings at TRANSLATION. */
991 p = __rawmemchr (p, '\0');
993 p = strchr (p, '\0');
995 /* And skip over the NUL byte. */
998 if (p >= translation + translation_len)
999 /* This should never happen. It means the plural expression
1000 evaluated to a value larger than the number of variants
1001 available for MSGID1. */
1002 return (char *) translation;
1008 /* Function to evaluate the plural expression and return an index value. */
1009 static unsigned long int
1011 plural_eval (pexp, n)
1012 struct expression *pexp;
1013 unsigned long int n;
1015 switch (pexp->nargs)
1018 switch (pexp->operation)
1023 return pexp->val.num;
1031 /* pexp->operation must be lnot. */
1032 unsigned long int arg = plural_eval (pexp->val.args[0], n);
1037 unsigned long int leftarg = plural_eval (pexp->val.args[0], n);
1038 if (pexp->operation == lor)
1039 return leftarg || plural_eval (pexp->val.args[1], n);
1040 else if (pexp->operation == land)
1041 return leftarg && plural_eval (pexp->val.args[1], n);
1044 unsigned long int rightarg = plural_eval (pexp->val.args[1], n);
1046 switch (pexp->operation)
1049 return leftarg * rightarg;
1051 return leftarg / rightarg;
1053 return leftarg % rightarg;
1055 return leftarg + rightarg;
1057 return leftarg - rightarg;
1059 return leftarg < rightarg;
1061 return leftarg > rightarg;
1063 return leftarg <= rightarg;
1064 case greater_or_equal:
1065 return leftarg >= rightarg;
1067 return leftarg == rightarg;
1069 return leftarg != rightarg;
1079 /* pexp->operation must be qmop. */
1080 unsigned long int boolarg = plural_eval (pexp->val.args[0], n);
1081 return plural_eval (pexp->val.args[boolarg ? 1 : 2], n);
1089 /* Return string representation of locale CATEGORY. */
1092 category_to_name (category)
1101 retval = "LC_COLLATE";
1106 retval = "LC_CTYPE";
1111 retval = "LC_MONETARY";
1116 retval = "LC_NUMERIC";
1126 retval = "LC_MESSAGES";
1131 retval = "LC_RESPONSE";
1136 /* This might not make sense but is perhaps better than any other
1142 /* If you have a better idea for a default value let me know. */
1149 /* Guess value of current locale from value of the environment variables. */
1152 guess_category_value (category, categoryname)
1154 const char *categoryname;
1156 const char *language;
1159 /* The highest priority value is the `LANGUAGE' environment
1160 variable. But we don't use the value if the currently selected
1161 locale is the C locale. This is a GNU extension. */
1162 language = getenv ("LANGUAGE");
1163 if (language != NULL && language[0] == '\0')
1166 /* We have to proceed with the POSIX methods of looking to `LC_ALL',
1167 `LC_xxx', and `LANG'. On some systems this can be done by the
1168 `setlocale' function itself. */
1169 #if defined _LIBC || (defined HAVE_SETLOCALE && defined HAVE_LC_MESSAGES && defined HAVE_LOCALE_NULL)
1170 retval = setlocale (category, NULL);
1172 /* Setting of LC_ALL overwrites all other. */
1173 retval = getenv ("LC_ALL");
1174 if (retval == NULL || retval[0] == '\0')
1176 /* Next comes the name of the desired category. */
1177 retval = getenv (categoryname);
1178 if (retval == NULL || retval[0] == '\0')
1180 /* Last possibility is the LANG environment variable. */
1181 retval = getenv ("LANG");
1182 if (retval == NULL || retval[0] == '\0')
1183 /* We use C as the default domain. POSIX says this is
1184 implementation defined. */
1190 return language != NULL && strcmp (retval, "C") != 0 ? language : retval;
1193 /* @@ begin of epilog @@ */
1195 /* We don't want libintl.a to depend on any other library. So we
1196 avoid the non-standard function stpcpy. In GNU C Library this
1197 function is available, though. Also allow the symbol HAVE_STPCPY
1199 #if !_LIBC && !HAVE_STPCPY
1205 while ((*dest++ = *src++) != '\0')
1211 #if !_LIBC && !HAVE_MEMPCPY
1213 mempcpy (dest, src, n)
1218 return (void *) ((char *) memcpy (dest, src, n) + n);
1224 /* If we want to free all resources we have to do some work at
1226 static void __attribute__ ((unused))
1231 while (_nl_domain_bindings != NULL)
1233 struct binding *oldp = _nl_domain_bindings;
1234 _nl_domain_bindings = _nl_domain_bindings->next;
1235 if (oldp->dirname != _nl_default_dirname)
1236 /* Yes, this is a pointer comparison. */
1237 free (oldp->dirname);
1238 free (oldp->codeset);
1242 if (_nl_current_default_domain != _nl_default_default_domain)
1243 /* Yes, again a pointer comparison. */
1244 free ((char *) _nl_current_default_domain);
1246 /* Remove the search tree with the known translations. */
1247 __tdestroy (root, free);
1250 while (transmem_list != NULL)
1252 old = transmem_list;
1253 transmem_list = transmem_list->next;
1258 text_set_element (__libc_subfreeres, free_mem);