]> git.saurik.com Git - apple/icu.git/blame - icuSources/common/unistr_titlecase_brkiter.cpp
ICU-57166.0.1.tar.gz
[apple/icu.git] / icuSources / common / unistr_titlecase_brkiter.cpp
CommitLineData
4388f060
A
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