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
29 static int32_t U_CALLCONV
unistr_case_internalToTitle(const UCaseMap * csm,UChar * dest,int32_t destCapacity,const UChar * src,int32_t srcLength,UErrorCode * pErrorCode)30 unistr_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 */
42 static inline void
setTempCaseMap(UCaseMap * csm,const char * locale)43 setTempCaseMap(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
54 U_NAMESPACE_BEGIN
55
56 UnicodeString &
toTitle(BreakIterator * titleIter)57 UnicodeString::toTitle(BreakIterator *titleIter) {
58 return toTitle(titleIter, Locale::getDefault(), 0);
59 }
60
61 UnicodeString &
toTitle(BreakIterator * titleIter,const Locale & locale)62 UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale) {
63 return toTitle(titleIter, locale, 0);
64 }
65
66 UnicodeString &
toTitle(BreakIterator * titleIter,const Locale & locale,uint32_t options)67 UnicodeString::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
88 U_NAMESPACE_END
89
90 #endif // !UCONFIG_NO_BREAK_ITERATION
91