tests/include/rw_locale.h

/************************************************************************
 *
 * rw_locale.h - declarations of locale testsuite helpers
 *
 * $Id$
 *
 ************************************************************************
 *
 * Licensed to the Apache Software  Foundation (ASF) under one or more
 * contributor  license agreements.  See  the NOTICE  file distributed
 * with  this  work  for  additional information  regarding  copyright
 * ownership.   The ASF  licenses this  file to  you under  the Apache
 * License, Version  2.0 (the  "License"); you may  not use  this file
 * except in  compliance with the License.   You may obtain  a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the  License is distributed on an  "AS IS" BASIS,
 * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
 * implied.   See  the License  for  the  specific language  governing
 * permissions and limitations under the License.
 *
 * Copyright 2001-2007 Rogue Wave Software, Inc.
 * 
 **************************************************************************/

#ifndef RW_LOCALE_H_INCLUDED
#define RW_LOCALE_H_INCLUDED


#include <rw_testdefs.h>


#define _UNUSED_CAT 69


// get a list of all native locales that match the cannonical
// locale name query strings
_TEST_EXPORT char*
rw_locale_query (int = _UNUSED_CAT, const char* = 0, _RWSTD_SIZE_T = 0);


// this function will likely be deprecated!
_TEST_EXPORT char*
rw_locales (int = _UNUSED_CAT, const char* = 0, bool = true);


// invokes the locale utility with the arguments specified by 'arg',
// redirecting its output to the file named by 'fname' if non-null
// returns the exit status of the utility
_TEST_EXPORT int
rw_locale (const char* /* args */, const char* /* fname */);


#define LOCALE_ROOT_ENVAR   "RWSTD_LOCALE_ROOT"

// creates a temporary directory and defines the RWSTD_LOCALE_ROOT
// environment variable to the name of the directory; the directory
// will be automatically removed on program exit as if by calling
// atexit()
// if the environment variable RW_PUTENV is defined, defines any
// additional environment variable(s) specified by it (by calling
// rw_putenv(0))
// returns the absolute pathname of the directory
_TEST_EXPORT const char*
rw_set_locale_root ();


// invokes localedef to create a locale database named by the last argument,
// if non-0, or in a directory specified by the RWSTD_LOCALE_ROOT environment
// variable otherwise, if it is defined, otherwise in the current working
// directory
// returns the name of the locale; successive calls to the function may
// change the contents of the character array pointed to by the pointer
// returned from prior calls
_TEST_EXPORT const char*
rw_localedef (const char*, const char*, const char*, const char*);


// stores up to 'size' wide characters valid in the current locale
// in consecutive elements of the 'wbuf' buffer; if 'nbytes' is
// non-zero only wide characters with multibyte sequences of the
// specified length will be stored (as determined by mblen())
// returns the number of elements stored
_TEST_EXPORT _RWSTD_SIZE_T
rw_get_wchars (wchar_t*      /* wbuf */,
               _RWSTD_SIZE_T /* size */,
               int           /* nbytes */ = 0);


// an array of multibyte characters 1 to MB_LEN_MAX bytes in length
typedef char
rw_mbchar_array_t [_RWSTD_MB_LEN_MAX][_RWSTD_MB_LEN_MAX];

// fills consecutive elements of the `mb_chars' array with multibyte
// characters between 1 and MB_CUR_MAX bytes long for the currently
// set locale
// returns the number of elements populated (normally, MB_CUR_MAX)
_TEST_EXPORT _RWSTD_SIZE_T
rw_get_mb_chars (rw_mbchar_array_t /* mb_chars */);


// finds the multibyte locale with the largest MB_CUR_MAX value and
// fills consecutive elements of the `mb_chars' array with multibyte
// characters between 1 and MB_CUR_MAX bytes long for such a locale
_TEST_EXPORT const char*
rw_find_mb_locale (_RWSTD_SIZE_T* /* mb_cur_max */,
                   rw_mbchar_array_t /* mb_chars */);

// invokes localedef with charmap and locale def to create a locale database 
// in a directory specified by the RWSTD_LOCALE_ROOT environment
// variable, if it is defined, otherwise in the current working
// directory
// returns the name of the locale
_TEST_EXPORT const char*
rw_create_locale (const char* /* charmap */, const char* /* locale */);


// NUL-separated list of locale names specified by the --locales
// command line option (set by the rw_opt_setlocales handler)
_TEST_EXPORT extern const char* const&
rw_opt_locales;


// callback function invoked in response to the --locales=<locale-list>
// command line option to set the rw_opt_locales global variable to the
// NUL-separated list of locale names to exercise
_TEST_EXPORT int
rw_opt_setlocales (int, char*[]);


// creates message file and invokes gencat to create message catalog
// then removes the message file
// catalog is a '\0' separated list of strings, each of which representing
// a single message, and with a blank line separating one set from another
// returns 0 in success
_TEST_EXPORT int
rw_create_catalog (const char * /* catname */, const char * /* catalog */);

#endif   // RW_LOCALE_H_INCLUDED