112 lines
3.7 KiB
C++
112 lines
3.7 KiB
C++
#include "stlexam.h"
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#pragma hdrstop
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/**************************************************************************
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*
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* codecvt.cpp - Example program of codecvt facet.
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* See Class Reference Section
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*
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***************************************************************************
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*
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* (c) Copyright 1994, 1998 Rogue Wave Software, Inc.
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* ALL RIGHTS RESERVED
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*
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* The software and information contained herein are proprietary to, and
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* comprise valuable trade secrets of, Rogue Wave Software, Inc., which
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* intends to preserve as trade secrets such software and information.
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* This software is furnished pursuant to a written license agreement and
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* may be used, copied, transmitted, and stored only in accordance with
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* the terms of such license and with the inclusion of the above copyright
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* notice. This software and information or any other copies thereof may
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* not be provided or otherwise made available to any other person.
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*
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* Notwithstanding any other lease or license that may pertain to, or
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* accompany the delivery of, this computer software and information, the
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* rights of the Government regarding its use, reproduction and disclosure
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* are as set forth in Section 52.227-19 of the FARS Computer
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* Software-Restricted Rights clause.
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*
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* Use, duplication, or disclosure by the Government is subject to
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* restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
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* Technical Data and Computer Software clause at DFARS 252.227-7013.
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* Contractor/Manufacturer is Rogue Wave Software, Inc.,
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* P.O. Box 2328, Corvallis, Oregon 97339.
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*
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* This computer software and information is distributed with "restricted
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* rights." Use, duplication or disclosure is subject to restrictions as
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* set forth in NASA FAR SUP 18-52.227-79 (April 1985) "Commercial
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* Computer Software-Restricted Rights (April 1985)." If the Clause at
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* 18-52.227-74 "Rights in Data General" is specified in the contract,
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* then the "Alternate III" clause applies.
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*
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**************************************************************************/
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#include <sstream>
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#include "codecvte.h"
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int main ()
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{
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#ifndef _RWSTD_NO_NAMESPACE
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using namespace std;
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#endif
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mbstate_t state;
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// three strings to use as buffers
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string ins("\xfc \xcc \xcd \x61 \xe1 \xd9 \xc6 \xe6 \xf5");
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string ins2(ins.size(),'.');
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string outs(ins.size()/ex_codecvt().encoding(),'.');
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// Print initial contents of buffers
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cout << "Before:\n" << ins << endl;
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cout << ins2 << endl;
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cout << outs << endl << endl;
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// Initialize buffers
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string::iterator in_it = ins.begin();
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string::iterator out_it = outs.begin();
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string::const_iterator const_in_it = ins.begin();
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string::const_iterator const_out_it = outs.begin();
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// Create a user defined codecvt fact
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// This facet converst from ISO Latin
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// Alphabet No. 1 (ISO 8859-1) to
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// U.S. ASCII code page 437
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// This facet replaces the default for
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// codecvt<char,char,mbstate_t>
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locale loc(locale(),new ex_codecvt);
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// Now get the facet from the locale
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const codecvt<char,char,mbstate_t>& cdcvt =
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#ifndef _RWSTD_NO_TEMPLATE_ON_RETURN_TYPE
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use_facet<codecvt<char,char,mbstate_t> >(loc);
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#else
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use_facet(loc,(codecvt<char,char,mbstate_t>*)0);
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#endif
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// convert the buffer
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cdcvt.in(state,ins.begin(),ins.end(),const_in_it,
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outs.begin(),outs.end(),out_it);
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cout << "After in:\n" << ins << endl;
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cout << ins2 << endl;
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cout << outs << endl << endl;
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// Lastly, convert back to the original codeset
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in_it = ins.begin();
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out_it = outs.begin();
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cdcvt.out(state, outs.begin(),outs.end(),const_out_it,
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ins2.begin(),ins2.end(),in_it);
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cout << "After out:\n" << ins << endl;
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cout << ins2 << endl;
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cout << outs << endl;
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return 0;
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}
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