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1/*
2*******************************************************************************
3* Copyright (C) 2011, International Business Machines
4* Corporation and others. All Rights Reserved.
5*******************************************************************************
6* file name: ustr_titlecase_brkiter.cpp
7* encoding: US-ASCII
8* tab size: 8 (not used)
9* indentation:4
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/ucasemap.h"
25#include "cmemory.h"
26#include "ucase.h"
27#include "ustr_imp.h"
28
29/* functions available in the common library (for unistr_case.cpp) */
30
31/*
32 * Set parameters on an empty UCaseMap, for UCaseMap-less API functions.
33 * Do this fast because it is called with every function call.
34 * Duplicate of the same function in ustrcase.cpp, to keep it inline.
35 */
36static inline void
37setTempCaseMap(UCaseMap *csm, const char *locale) {
38 if(csm->csp==NULL) {
39 csm->csp=ucase_getSingleton();
40 }
41 if(locale!=NULL && locale[0]==0) {
42 csm->locale[0]=0;
43 } else {
44 ustrcase_setTempCaseMapLocale(csm, locale);
45 }
46}
47
48/* public API functions */
49
50U_CAPI int32_t U_EXPORT2
51u_strToTitle(UChar *dest, int32_t destCapacity,
52 const UChar *src, int32_t srcLength,
53 UBreakIterator *titleIter,
54 const char *locale,
55 UErrorCode *pErrorCode) {
56 UCaseMap csm=UCASEMAP_INITIALIZER;
57 setTempCaseMap(&csm, locale);
58 if(titleIter!=NULL) {
59 ubrk_setText(csm.iter=titleIter, src, srcLength, pErrorCode);
60 } else {
61 csm.iter=ubrk_open(UBRK_WORD, csm.locale, src, srcLength, pErrorCode);
62 }
63 int32_t length=ustrcase_map(
64 &csm,
65 dest, destCapacity,
66 src, srcLength,
67 ustrcase_internalToTitle, pErrorCode);
68 if(titleIter==NULL && csm.iter!=NULL) {
69 ubrk_close(csm.iter);
70 }
71 return length;
72}
73
74U_CAPI int32_t U_EXPORT2
75ucasemap_toTitle(UCaseMap *csm,
76 UChar *dest, int32_t destCapacity,
77 const UChar *src, int32_t srcLength,
78 UErrorCode *pErrorCode) {
79 if(csm->iter!=NULL) {
80 ubrk_setText(csm->iter, src, srcLength, pErrorCode);
81 } else {
82 csm->iter=ubrk_open(UBRK_WORD, csm->locale, src, srcLength, pErrorCode);
83 }
84 return ustrcase_map(
85 csm,
86 dest, destCapacity,
87 src, srcLength,
88 ustrcase_internalToTitle, pErrorCode);
89}
90
91#endif // !UCONFIG_NO_BREAK_ITERATION