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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
index 0000000000..ba5d455cd5
--- /dev/null
+++ b/intl/plural-exp.c
@@ -0,0 +1,157 @@
+/* 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;
+    }
+}