100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: UnivCharsetDesc.C /main/1 1996/07/29 17:07:43 cde-hp $ */
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// Copyright (c) 1994 James Clark
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// See the file COPYING for copying permission.
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "splib.h"
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#include "UnivCharsetDesc.h"
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#include "macros.h"
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#include "constant.h"
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#ifdef SP_NAMESPACE
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namespace SP_NAMESPACE {
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#endif
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UnivCharsetDesc::UnivCharsetDesc()
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{
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}
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UnivCharsetDesc::UnivCharsetDesc(const Range *p, size_t n)
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{
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set(p, n);
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}
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void UnivCharsetDesc::set(const Range *p, size_t n)
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{
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for (size_t i = 0; i < n; i++) {
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const Range &r = p[i];
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WideChar max;
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if (r.count > wideCharMax || r.descMin > wideCharMax - r.count)
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max = wideCharMax;
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else
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max = r.descMin + (r.count - 1);
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if (max - r.descMin > univCharMax
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|| r.univMin > univCharMax - (max - r.descMin))
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max = r.descMin + (univCharMax - r.univMin);
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descToUniv_.addRange(r.descMin, max, r.univMin);
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}
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}
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void UnivCharsetDesc::addBaseRange(const UnivCharsetDesc &baseSet,
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WideChar descMin,
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WideChar descMax,
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WideChar baseMin,
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ISet<WideChar> &baseMissing)
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{
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UnivCharsetDescIter iter(baseSet);
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WideChar baseMax = baseMin + (descMax - descMin);
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WideChar iDescMin, iDescMax;
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UnivChar iBaseMin;
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WideChar missingBaseMin = baseMin;
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Boolean usedAll = 0;
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while (iter.next(iDescMin, iDescMax, iBaseMin) && iDescMin <= baseMax) {
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// baseMin baseMax
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// iDescMin iDescMax
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if (iDescMax >= baseMin) {
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WideChar min = baseMin > iDescMin ? baseMin : iDescMin;
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if (min > missingBaseMin)
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baseMissing.addRange(missingBaseMin, min - 1);
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WideChar max = baseMax < iDescMax ? baseMax : iDescMax;
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missingBaseMin = max + 1;
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if (missingBaseMin == 0)
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usedAll = 1;
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ASSERT(min <= max);
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descToUniv_.addRange(descMin + (min - baseMin),
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descMin + (max - baseMin),
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iBaseMin + (min - iDescMin));
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}
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}
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if (!usedAll && baseMax >= missingBaseMin)
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baseMissing.addRange(missingBaseMin, baseMax);
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}
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#ifdef SP_NAMESPACE
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}
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#endif
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