michael@0: /*
michael@0: *******************************************************************************
michael@0: *   Copyright (C) 2011, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: *******************************************************************************
michael@0: *   file name:  unistr_titlecase_brkiter.cpp
michael@0: *   encoding:   US-ASCII
michael@0: *   tab size:   8 (not used)
michael@0: *   indentation:2
michael@0: *
michael@0: *   created on: 2011may30
michael@0: *   created by: Markus W. Scherer
michael@0: *
michael@0: *   Titlecasing functions that are based on BreakIterator
michael@0: *   were moved here to break dependency cycles among parts of the common library.
michael@0: */
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #if !UCONFIG_NO_BREAK_ITERATION
michael@0: 
michael@0: #include "unicode/brkiter.h"
michael@0: #include "unicode/ubrk.h"
michael@0: #include "unicode/unistr.h"
michael@0: #include "unicode/ustring.h"
michael@0: #include "cmemory.h"
michael@0: #include "ustr_imp.h"
michael@0: 
michael@0: static int32_t U_CALLCONV
michael@0: unistr_case_internalToTitle(const UCaseMap *csm,
michael@0:                             UChar *dest, int32_t destCapacity,
michael@0:                             const UChar *src, int32_t srcLength,
michael@0:                             UErrorCode *pErrorCode) {
michael@0:   ubrk_setText(csm->iter, src, srcLength, pErrorCode);
michael@0:   return ustrcase_internalToTitle(csm, dest, destCapacity, src, srcLength, pErrorCode);
michael@0: }
michael@0: 
michael@0: /*
michael@0:  * Set parameters on an empty UCaseMap, for UCaseMap-less API functions.
michael@0:  * Do this fast because it is called with every function call.
michael@0:  */
michael@0: static inline void
michael@0: setTempCaseMap(UCaseMap *csm, const char *locale) {
michael@0:     if(csm->csp==NULL) {
michael@0:         csm->csp=ucase_getSingleton();
michael@0:     }
michael@0:     if(locale!=NULL && locale[0]==0) {
michael@0:         csm->locale[0]=0;
michael@0:     } else {
michael@0:         ustrcase_setTempCaseMapLocale(csm, locale);
michael@0:     }
michael@0: }
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: UnicodeString &
michael@0: UnicodeString::toTitle(BreakIterator *titleIter) {
michael@0:   return toTitle(titleIter, Locale::getDefault(), 0);
michael@0: }
michael@0: 
michael@0: UnicodeString &
michael@0: UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale) {
michael@0:   return toTitle(titleIter, locale, 0);
michael@0: }
michael@0: 
michael@0: UnicodeString &
michael@0: UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale, uint32_t options) {
michael@0:   UCaseMap csm=UCASEMAP_INITIALIZER;
michael@0:   csm.options=options;
michael@0:   setTempCaseMap(&csm, locale.getName());
michael@0:   BreakIterator *bi=titleIter;
michael@0:   if(bi==NULL) {
michael@0:     UErrorCode errorCode=U_ZERO_ERROR;
michael@0:     bi=BreakIterator::createWordInstance(locale, errorCode);
michael@0:     if(U_FAILURE(errorCode)) {
michael@0:       setToBogus();
michael@0:       return *this;
michael@0:     }
michael@0:   }
michael@0:   csm.iter=reinterpret_cast<UBreakIterator *>(bi);
michael@0:   caseMap(&csm, unistr_case_internalToTitle);
michael@0:   if(titleIter==NULL) {
michael@0:     delete bi;
michael@0:   }
michael@0:   return *this;
michael@0: }
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: #endif  // !UCONFIG_NO_BREAK_ITERATION