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_case_locale.cpp
michael@0: *   encoding:   US-ASCII
michael@0: *   tab size:   8 (not used)
michael@0: *   indentation:4
michael@0: *
michael@0: *   created on: 2011may31
michael@0: *   created by: Markus W. Scherer
michael@0: *
michael@0: *   Locale-sensitive case mapping functions (ones that call uloc_getDefault())
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: #include "unicode/locid.h"
michael@0: #include "unicode/unistr.h"
michael@0: #include "cmemory.h"
michael@0: #include "ustr_imp.h"
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: //========================================
michael@0: // Write implementation
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: UnicodeString &
michael@0: UnicodeString::toLower() {
michael@0:   return toLower(Locale::getDefault());
michael@0: }
michael@0: 
michael@0: UnicodeString &
michael@0: UnicodeString::toLower(const Locale &locale) {
michael@0:   UCaseMap csm=UCASEMAP_INITIALIZER;
michael@0:   setTempCaseMap(&csm, locale.getName());
michael@0:   return caseMap(&csm, ustrcase_internalToLower);
michael@0: }
michael@0: 
michael@0: UnicodeString &
michael@0: UnicodeString::toUpper() {
michael@0:   return toUpper(Locale::getDefault());
michael@0: }
michael@0: 
michael@0: UnicodeString &
michael@0: UnicodeString::toUpper(const Locale &locale) {
michael@0:   UCaseMap csm=UCASEMAP_INITIALIZER;
michael@0:   setTempCaseMap(&csm, locale.getName());
michael@0:   return caseMap(&csm, ustrcase_internalToUpper);
michael@0: }
michael@0: 
michael@0: U_NAMESPACE_END