1 // Copyright (C) 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 *******************************************************************************
5 * Copyright (C) 2011, International Business Machines
6 * Corporation and others. All Rights Reserved.
7 *******************************************************************************
8 * file name: unistr_titlecase_brkiter.cpp
9 * encoding: US-ASCII
10 * tab size: 8 (not used)
11 * indentation:2
12 *
13 * created on: 2011may30
14 * created by: Markus W. Scherer
15 *
16 * Titlecasing functions that are based on BreakIterator
17 * were moved here to break dependency cycles among parts of the common library.
18 */
19
20 #include "unicode/utypes.h"
21
22 #if !UCONFIG_NO_BREAK_ITERATION
23
24 #include "unicode/brkiter.h"
25 #include "unicode/ubrk.h"
26 #include "unicode/unistr.h"
27 #include "unicode/ustring.h"
28 #include "cmemory.h"
29 #include "ustr_imp.h"
30
31 static int32_t U_CALLCONV
unistr_case_internalToTitle(const UCaseMap * csm,UChar * dest,int32_t destCapacity,const UChar * src,int32_t srcLength,UErrorCode * pErrorCode)32 unistr_case_internalToTitle(const UCaseMap *csm,
33 UChar *dest, int32_t destCapacity,
34 const UChar *src, int32_t srcLength,
35 UErrorCode *pErrorCode) {
36 ubrk_setText(csm->iter, src, srcLength, pErrorCode);
37 return ustrcase_internalToTitle(csm, dest, destCapacity, src, srcLength, pErrorCode);
38 }
39
40 /*
41 * Set parameters on an empty UCaseMap, for UCaseMap-less API functions.
42 * Do this fast because it is called with every function call.
43 */
44 static inline void
setTempCaseMap(UCaseMap * csm,const char * locale)45 setTempCaseMap(UCaseMap *csm, const char *locale) {
46 if(csm->csp==NULL) {
47 csm->csp=ucase_getSingleton();
48 }
49 if(locale!=NULL && locale[0]==0) {
50 csm->locale[0]=0;
51 } else {
52 ustrcase_setTempCaseMapLocale(csm, locale);
53 }
54 }
55
56 U_NAMESPACE_BEGIN
57
58 UnicodeString &
toTitle(BreakIterator * titleIter)59 UnicodeString::toTitle(BreakIterator *titleIter) {
60 return toTitle(titleIter, Locale::getDefault(), 0);
61 }
62
63 UnicodeString &
toTitle(BreakIterator * titleIter,const Locale & locale)64 UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale) {
65 return toTitle(titleIter, locale, 0);
66 }
67
68 UnicodeString &
toTitle(BreakIterator * titleIter,const Locale & locale,uint32_t options)69 UnicodeString::toTitle(BreakIterator *titleIter, const Locale &locale, uint32_t options) {
70 UCaseMap csm=UCASEMAP_INITIALIZER;
71 csm.options=options;
72 setTempCaseMap(&csm, locale.getName());
73 BreakIterator *bi=titleIter;
74 if(bi==NULL) {
75 UErrorCode errorCode=U_ZERO_ERROR;
76 bi=BreakIterator::createWordInstance(locale, errorCode);
77 if(U_FAILURE(errorCode)) {
78 setToBogus();
79 return *this;
80 }
81 }
82 csm.iter=reinterpret_cast<UBreakIterator *>(bi);
83 caseMap(&csm, unistr_case_internalToTitle);
84 if(titleIter==NULL) {
85 delete bi;
86 }
87 return *this;
88 }
89
90 U_NAMESPACE_END
91
92 #endif // !UCONFIG_NO_BREAK_ITERATION
93