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authorzack <zack@138bc75d-0d04-0410-961f-82ee72b054a4>2003-07-04 18:18:54 +0000
committerzack <zack@138bc75d-0d04-0410-961f-82ee72b054a4>2003-07-04 18:18:54 +0000
commit1e12d536323a2545a537ae3fcdda617e76760f90 (patch)
treeb01fd4f285dcf287b34caf7b296d58a120edb505 /intl/plural-exp.h
parent52aa1bf85dce176278a5e8ee4120bd817d770391 (diff)
top:
* intl: New directory; see intl/ChangeLog for details. * ABOUT-NLS, config.rpath: Import from gettext 0.12.1. * Makefile.tpl: all-gcc depends on maybe-all-intl. * Makefile.in: Regenerate. config: * gettext.m4: New file - copy of gettext.m4 from binutils CVS, with added AC_ISC_POSIX macro from gcc/aclocal.m4. gcc: * ABOUT-NLS: Delete. * intl: Delete entire directory. * aclocal.m4: Include ../config/gettext.m4. Delete AC_ISC_POSIX, AM_LANGINFO_CODESET, jm_GLIBC21, AM_LC_MESSAGES, AM_PATH_PROG_WITH_TEST, AM_WITH_NLS, and AM_GNU_GETTEXT. * configure.in: Use CY_GNU_GETTEXT, not AM_GNU_GETTEXT. Remove intl/Makefile from all_outputs. * configure, config.in: Regenerate. * Makefile.in: Expunge all references to intl subdirectory. Add -I../intl to INCLUDES. * intl.h: Include libintl.h if and only if ENABLE_NLS is defined. intl: * Makefile.in: Remove unnecessary capabilities for installation, build of shared libraries, generation of distribution tarballs, etc. Fix all the places that rely on the parent directory. Don't generate libgnuintl.h from anything; do generate $(objdir)/libintl.h from libgnuintl.h if necessary. Adjust DEFS for use of config.h. * libgnuintl.h.in: Rename libgnuintl.h. * README: New file. * config.charset, ref-add.sin, ref-del.sin: Delete (unused). * COPYING.LIB-2.0, COPYING.LIB-2.1: Delete (redundant). * aclocal.m4: New; generated per instructions in gettext manual. * configure.in: New; written from scratch for this configuration. * configure, config.h.in: Generated. contrib: * gcc_update: Remove gcc/intl/plural.c from list. Add new generated files intl/plural.c, intl/configure, intl/config.h.in. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@68928 138bc75d-0d04-0410-961f-82ee72b054a4
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+/* Expression parsing and evaluation for plural form selection.
+ Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+ Written by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Library General Public License as published
+ by the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ USA. */
+
+#ifndef _PLURAL_EXP_H
+#define _PLURAL_EXP_H
+
+#ifndef PARAMS
+# if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
+# define PARAMS(args) args
+# else
+# define PARAMS(args) ()
+# endif
+#endif
+
+#ifndef internal_function
+# define internal_function
+#endif
+
+#ifndef attribute_hidden
+# define attribute_hidden
+#endif
+
+
+/* This is the representation of the expressions to determine the
+ plural form. */
+struct expression
+{
+ int nargs; /* Number of arguments. */
+ enum operator
+ {
+ /* Without arguments: */
+ var, /* The variable "n". */
+ num, /* Decimal number. */
+ /* Unary operators: */
+ lnot, /* Logical NOT. */
+ /* Binary operators: */
+ mult, /* Multiplication. */
+ divide, /* Division. */
+ module, /* Modulo operation. */
+ plus, /* Addition. */
+ minus, /* Subtraction. */
+ less_than, /* Comparison. */
+ greater_than, /* Comparison. */
+ less_or_equal, /* Comparison. */
+ greater_or_equal, /* Comparison. */
+ equal, /* Comparison for equality. */
+ not_equal, /* Comparison for inequality. */
+ land, /* Logical AND. */
+ lor, /* Logical OR. */
+ /* Ternary operators: */
+ qmop /* Question mark operator. */
+ } operation;
+ union
+ {
+ unsigned long int num; /* Number value for `num'. */
+ struct expression *args[3]; /* Up to three arguments. */
+ } val;
+};
+
+/* This is the data structure to pass information to the parser and get
+ the result in a thread-safe way. */
+struct parse_args
+{
+ const char *cp;
+ struct expression *res;
+};
+
+
+/* Names for the libintl functions are a problem. This source code is used
+ 1. in the GNU C Library library,
+ 2. in the GNU libintl library,
+ 3. in the GNU gettext tools.
+ The function names in each situation must be different, to allow for
+ binary incompatible changes in 'struct expression'. Furthermore,
+ 1. in the GNU C Library library, the names have a __ prefix,
+ 2.+3. in the GNU libintl library and in the GNU gettext tools, the names
+ must follow ANSI C and not start with __.
+ So we have to distinguish the three cases. */
+#ifdef _LIBC
+# define FREE_EXPRESSION __gettext_free_exp
+# define PLURAL_PARSE __gettextparse
+# define GERMANIC_PLURAL __gettext_germanic_plural
+# define EXTRACT_PLURAL_EXPRESSION __gettext_extract_plural
+#elif defined (IN_LIBINTL)
+# define FREE_EXPRESSION libintl_gettext_free_exp
+# define PLURAL_PARSE libintl_gettextparse
+# define GERMANIC_PLURAL libintl_gettext_germanic_plural
+# define EXTRACT_PLURAL_EXPRESSION libintl_gettext_extract_plural
+#else
+# define FREE_EXPRESSION free_plural_expression
+# define PLURAL_PARSE parse_plural_expression
+# define GERMANIC_PLURAL germanic_plural
+# define EXTRACT_PLURAL_EXPRESSION extract_plural_expression
+#endif
+
+extern void FREE_EXPRESSION PARAMS ((struct expression *exp))
+ internal_function;
+extern int PLURAL_PARSE PARAMS ((void *arg));
+extern struct expression GERMANIC_PLURAL attribute_hidden;
+extern void EXTRACT_PLURAL_EXPRESSION PARAMS ((const char *nullentry,
+ struct expression **pluralp,
+ unsigned long int *npluralsp))
+ internal_function;
+
+#if !defined (_LIBC) && !defined (IN_LIBINTL)
+extern unsigned long int plural_eval PARAMS ((struct expression *pexp,
+ unsigned long int n));
+#endif
+
+#endif /* _PLURAL_EXP_H */