1/* 2******************************************************************************* 3* Copyright (C) 2011, International Business Machines 4* Corporation and others. All Rights Reserved. 5******************************************************************************* 6* file name: unistr_titlecase_brkiter.cpp 7* encoding: US-ASCII 8* tab size: 8 (not used) 9* indentation:2 10* 11* created on: 2011may30 12* created by: Markus W. Scherer 13* 14* Titlecasing functions that are based on BreakIterator 15* were moved here to break dependency cycles among parts of the common library. 16*/ 17 18#include "unicode/utypes.h" 19 20#if !UCONFIG_NO_BREAK_ITERATION 21 22#include "unicode/brkiter.h" 23#include "unicode/ubrk.h" 24#include "unicode/unistr.h" 25#include "unicode/ustring.h" 26#include "cmemory.h" 27#include "ustr_imp.h" 28 29static int32_t U_CALLCONV 30unistr_case_internalToTitle(const UCaseMap *csm, 31 UChar *dest, int32_t destCapacity, 32 const UChar *src, int32_t srcLength, 33 UErrorCode *pErrorCode) { 34 ubrk_setText(csm->iter, src, srcLength, pErrorCode); 35 return ustrcase_internalToTitle(csm, dest, destCapacity, src, srcLength, pErrorCode); 36} 37 38/* 39 * Set parameters on an empty UCaseMap, for UCaseMap-less API functions. 40 * Do this fast because it is called with every function call. 41 */ 42static inline void 43setTempCaseMap(UCaseMap *csm, const char *locale) { 44 if(csm->csp==NULL) { 45 csm->csp=ucase_getSingleton(); 46 } 47 if(locale!=NULL && locale[0]==0) { 48 csm->locale[0]=0; 49 } else { 50 ustrcase_setTempCaseMapLocale(csm, locale); 51 } 52} 53 54U_NAMESPACE_BEGIN 55 56UnicodeString & 57UnicodeString::toTitle(BreakIterator *titleIter) { 58 return toTitle(titleIter, Locale::getDefault(), 0); 59} 60 61UnicodeString & 62UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale) { 63 return toTitle(titleIter, locale, 0); 64} 65 66UnicodeString & 67UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale, uint32_t options) { 68 UCaseMap csm=UCASEMAP_INITIALIZER; 69 csm.options=options; 70 setTempCaseMap(&csm, locale.getName()); 71 BreakIterator *bi=titleIter; 72 if(bi==NULL) { 73 UErrorCode errorCode=U_ZERO_ERROR; 74 bi=BreakIterator::createWordInstance(locale, errorCode); 75 if(U_FAILURE(errorCode)) { 76 setToBogus(); 77 return *this; 78 } 79 } 80 csm.iter=reinterpret_cast<UBreakIterator *>(bi); 81 caseMap(&csm, unistr_case_internalToTitle); 82 if(titleIter==NULL) { 83 delete bi; 84 } 85 return *this; 86} 87 88U_NAMESPACE_END 89 90#endif // !UCONFIG_NO_BREAK_ITERATION 91