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authorUlrich Drepper <drepper@redhat.com>2001-11-28 00:09:26 +0000
committerUlrich Drepper <drepper@redhat.com>2001-11-28 00:09:26 +0000
commit0555fccea74d63cce35ca7121688a4a6dce610ca (patch)
tree2b29fafa424bd97c187d21457e3c4c70f73e32cb /intl/plural-exp.c
parent8a2072042b2b77e4e160d8ebcf99cdde370737ab (diff)
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Update.
2001-03-04 Bruno Haible <bruno@clisp.org> * intl/dcigettext.c (DCIGETTEXT): Increment path_max proportionally. 2001-10-31 Bruno Haible <bruno@clisp.org> * intl/plural.y: Include <stddef.h>, needed for NULL with SunOS 4 cc. 2001-03-21 Bruno Haible <bruno@clisp.org> * intl/dcigettext.c (_nl_state_lock): Mark as #ifdef _LIBC. AIX 3 xlc chokes on empty macro arguments. * intl/plural.y: Add #pragma for alloca on AIX 3. 2001-11-27 Ulrich Drepper <drepper@redhat.com> * intl/dcigettext.c (guess_category_value): Only implement for glibc. Otherwise rely on function _nl_locale_name which isn't present in the glibc sources. 2001-09-24 Bruno Haible <bruno@clisp.org> * intl/loadmsgcat.c (_nl_init_domain_conv): Also enable transliteration when building on a glibc system but outside glibc. 2001-09-22 Bruno Haible <bruno@clisp.org> * intl/plural-eval.c: New file, extracted from dcigettext.c. * intl/dcigettext.c (plural_eval): Remove function, moved to intl/plural-eval.c. (plural_lookup): Call PLURAL_EVAL instead of plural_eval. Include plural-eval.c. 2001-09-22 Bruno Haible <bruno@clisp.org> * intl/plural-exp.c (EXTRACT_PLURAL_EXPRESSION): Reject numbers that don't start with a digit; nplurals must be positive. 2001-09-02 Bruno Haible <bruno@clisp.org> * intl/plural-exp.h: New file, extracted from gettextP.h. * intl/plural-exp.c: New file, extracted from loadmsgcat.c. * intl/gettextP.h (struct expression, struct parse_args, __gettext_free_exp, __gettextparse): Move to plural-exp.h. * intl/loadmsgcat.c: Include plural-exp.h. (PLURAL_PARSE): Move macro to plural-exp.h. (plvar, plone, germanic_plural, INIT_GERMANIC_PLURAL): Move to plural-exp.c. (_nl_load_domain): Move plural handling code to plural-exp.c. Call EXTRACT_PLURAL_EXPRESSION. (_nl_unload_domain): Update. * intl/dcigettext.c: Include plural-exp.h. * intl/plural.y: Include plural-exp.h, not gettextP.h. (FREE_EXPRESSION): Move macro to plural-exp.h. * intl/Makefile (routines): Add plural-exp. (distribute): Add plural-exp.h. 2001-07-28 Bruno Haible <bruno@clisp.org> * intl/l10nflist.c (_nl_normalize_codeset): Cast isalnum, isalpha, isdigit, tolower argument to 'unsigned char'. * intl/loadmsgcat.c (_nl_load_domain): Cast isspace argument to 'unsigned char'. * intl/localealias.c (read_alias_file): Cast isspace argument to 'unsigned char'. 2001-10-20 Bruno Haible <bruno@clisp.org> Assume strchr() exists. (Without it, intl/explodename.c wouldn't link anyway.) * intl/dcigettext.c (strchr): Remove fallback definition; it conflicts with the variable 'index' in plural_lookup. * intl/l10nflist.c (strchr): Likewise. * intl/localealias.c (strchr): Likewise. Assume <stddef.h>, <stdlib.h>, <string.h>, <locale.h> exist. * intl/bindtextdom.c: Likewise. * intl/dcigettext.c: Likewise. * intl/dgettext.c: Likewise. * intl/dngettext.c: Likewise. * intl/explodename.c: Likewise. * intl/finddomain.c: Likewise. * intl/gettext.c: Likewise. * intl/l10nflist.c: Likewise. * intl/loadmsgcat.c: Likewise. * intl/localealias.c: Likewise. * intl/ngettext.c: Likewise. * intl/textdomain.c: Likewise. * intl/gettext.h: Assume <limits.h> exists.
Diffstat (limited to 'intl/plural-exp.c')
-rw-r--r--intl/plural-exp.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/intl/plural-exp.c b/intl/plural-exp.c
new file mode 100644
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--- /dev/null
+++ b/intl/plural-exp.c
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+/* Expression parsing for plural form selection.
+ Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ Written by Ulrich Drepper <drepper@cygnus.com>, 2000.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "plural-exp.h"
+
+#if (defined __GNUC__ && !defined __APPLE_CC__) \
+ || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)
+
+/* These structs are the constant expression for the germanic plural
+ form determination. It represents the expression "n != 1". */
+static const struct expression plvar =
+{
+ .nargs = 0,
+ .operation = var,
+};
+static const struct expression plone =
+{
+ .nargs = 0,
+ .operation = num,
+ .val =
+ {
+ .num = 1
+ }
+};
+struct expression GERMANIC_PLURAL =
+{
+ .nargs = 2,
+ .operation = not_equal,
+ .val =
+ {
+ .args =
+ {
+ [0] = (struct expression *) &plvar,
+ [1] = (struct expression *) &plone
+ }
+ }
+};
+
+# define INIT_GERMANIC_PLURAL()
+
+#else
+
+/* For compilers without support for ISO C 99 struct/union initializers:
+ Initialization at run-time. */
+
+static struct expression plvar;
+static struct expression plone;
+struct expression GERMANIC_PLURAL;
+
+static void
+init_germanic_plural ()
+{
+ if (plone.val.num == 0)
+ {
+ plvar.nargs = 0;
+ plvar.operation = var;
+
+ plone.nargs = 0;
+ plone.operation = num;
+ plone.val.num = 1;
+
+ GERMANIC_PLURAL.nargs = 2;
+ GERMANIC_PLURAL.operation = not_equal;
+ GERMANIC_PLURAL.val.args[0] = &plvar;
+ GERMANIC_PLURAL.val.args[1] = &plone;
+ }
+}
+
+# define INIT_GERMANIC_PLURAL() init_germanic_plural ()
+
+#endif
+
+void
+internal_function
+EXTRACT_PLURAL_EXPRESSION (nullentry, pluralp, npluralsp)
+ const char *nullentry;
+ struct expression **pluralp;
+ unsigned long int *npluralsp;
+{
+ if (nullentry != NULL)
+ {
+ const char *plural;
+ const char *nplurals;
+
+ plural = strstr (nullentry, "plural=");
+ nplurals = strstr (nullentry, "nplurals=");
+ if (plural == NULL || nplurals == NULL)
+ goto no_plural;
+ else
+ {
+ char *endp;
+ unsigned long int n;
+ struct parse_args args;
+
+ /* First get the number. */
+ nplurals += 9;
+ while (*nplurals != '\0' && isspace ((unsigned char) *nplurals))
+ ++nplurals;
+ if (!(*nplurals >= '0' && *nplurals <= '9'))
+ goto no_plural;
+#if defined HAVE_STRTOUL || defined _LIBC
+ n = strtoul (nplurals, &endp, 10);
+#else
+ for (endp = nplurals, n = 0; *endp >= '0' && *endp <= '9'; endp++)
+ n = n * 10 + (*endp - '0');
+#endif
+ if (nplurals == endp)
+ goto no_plural;
+ *npluralsp = n;
+
+ /* Due to the restrictions bison imposes onto the interface of the
+ scanner function we have to put the input string and the result
+ passed up from the parser into the same structure which address
+ is passed down to the parser. */
+ plural += 7;
+ args.cp = plural;
+ if (PLURAL_PARSE (&args) != 0)
+ goto no_plural;
+ *pluralp = args.res;
+ }
+ }
+ else
+ {
+ /* By default we are using the Germanic form: singular form only
+ for `one', the plural form otherwise. Yes, this is also what
+ English is using since English is a Germanic language. */
+ no_plural:
+ INIT_GERMANIC_PLURAL ();
+ *pluralp = &GERMANIC_PLURAL;
+ *npluralsp = 2;
+ }
+}