129 lines
3.7 KiB
C++
129 lines
3.7 KiB
C++
// Copyright (C) 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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* Copyright (C) 2011, International Business Machines
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* Corporation and others. All Rights Reserved.
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*******************************************************************************
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* file name: ustr_titlecase_brkiter.cpp
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 2011may30
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* created by: Markus W. Scherer
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*
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* Titlecasing functions that are based on BreakIterator
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* were moved here to break dependency cycles among parts of the common library.
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_BREAK_ITERATION
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#include "unicode/brkiter.h"
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#include "unicode/localpointer.h"
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#include "unicode/ubrk.h"
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#include "unicode/ucasemap.h"
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#include "cmemory.h"
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#include "ucase.h"
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#include "ustr_imp.h"
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U_NAMESPACE_USE
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using icu::internal::CaseMapFriend;
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// TODO: create casemap.cpp
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void icu::internal::CaseMapFriend::adoptIter(CaseMap &csm, BreakIterator *iter) {
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delete csm.iter;
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csm.iter = iter;
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}
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/* functions available in the common library (for unistr_case.cpp) */
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/* public API functions */
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U_CAPI int32_t U_EXPORT2
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u_strToTitle(UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UBreakIterator *titleIter,
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const char *locale,
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UErrorCode *pErrorCode) {
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CaseMap csm(locale, 0, *pErrorCode);
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BreakIterator *iter;
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if(titleIter!=NULL) {
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iter=reinterpret_cast<BreakIterator *>(titleIter);
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} else {
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iter=BreakIterator::createWordInstance(CaseMapFriend::locale(csm), *pErrorCode);
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CaseMapFriend::adoptIter(csm, iter);
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}
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if(U_FAILURE(*pErrorCode)) {
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return 0;
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}
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UnicodeString s(srcLength<0, src, srcLength);
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iter->setText(s);
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return ustrcase_mapWithOverlap(
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csm, iter,
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dest, destCapacity,
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src, srcLength,
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ustrcase_internalToTitle, *pErrorCode);
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}
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U_NAMESPACE_BEGIN
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int32_t CaseMap::toTitle(BreakIterator *it,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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Edits *edits,
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UErrorCode &errorCode) const {
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LocalPointer<BreakIterator> ownedIter;
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if(it==NULL) {
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if(iter!=NULL) {
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it=iter->clone();
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} else {
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it=BreakIterator::createWordInstance(locale, errorCode);
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}
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ownedIter.adoptInsteadAndCheckErrorCode(it, errorCode);
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}
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if(U_FAILURE(errorCode)) {
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return 0;
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}
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UnicodeString s(srcLength<0, src, srcLength);
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it->setText(s);
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return ustrcase_map(
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*this, it,
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dest, destCapacity,
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src, srcLength,
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ustrcase_internalToTitle, edits, errorCode);
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}
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U_NAMESPACE_END
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U_CAPI int32_t U_EXPORT2
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ucasemap_toTitle(UCaseMap *ucsm,
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UChar *dest, int32_t destCapacity,
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const UChar *src, int32_t srcLength,
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UErrorCode *pErrorCode) {
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if (U_FAILURE(*pErrorCode)) {
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return 0;
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}
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CaseMap &csm = *CaseMapFriend::fromUCaseMap(ucsm);
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if (CaseMapFriend::iter(csm) == NULL) {
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CaseMapFriend::adoptIter(
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csm, BreakIterator::createWordInstance(CaseMapFriend::locale(csm), *pErrorCode));
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}
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if (U_FAILURE(*pErrorCode)) {
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return 0;
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}
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UnicodeString s(srcLength<0, src, srcLength);
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CaseMapFriend::mutableIter(csm)->setText(s);
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return ustrcase_map(
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csm, CaseMapFriend::mutableIter(csm),
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dest, destCapacity,
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src, srcLength,
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ustrcase_internalToTitle, NULL, *pErrorCode);
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}
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#endif // !UCONFIG_NO_BREAK_ITERATION
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