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1 // © 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:  ustrcase_locale.cpp
9 *   encoding:   UTF-8
10 *   tab size:   8 (not used)
11 *   indentation:4
12 *
13 *   created on: 2011may31
14 *   created by: Markus W. Scherer
15 *
16 *   Locale-sensitive case mapping functions (ones that call uloc_getDefault())
17 *   were moved here to break dependency cycles among parts of the common library.
18 */
19 
20 #include "unicode/utypes.h"
21 #include "uassert.h"
22 #include "unicode/brkiter.h"
23 #include "unicode/casemap.h"
24 #include "unicode/ucasemap.h"
25 #include "unicode/uloc.h"
26 #include "unicode/ustring.h"
27 #include "ucase.h"
28 #include "ucasemap_imp.h"
29 
30 U_CFUNC int32_t
ustrcase_getCaseLocale(const char * locale)31 ustrcase_getCaseLocale(const char *locale) {
32     if (locale == NULL) {
33         locale = uloc_getDefault();
34     }
35     if (*locale == 0) {
36         return UCASE_LOC_ROOT;
37     } else {
38         return ucase_getCaseLocale(locale);
39     }
40 }
41 
42 /* public API functions */
43 
44 U_CAPI int32_t U_EXPORT2
u_strToLower(UChar * dest,int32_t destCapacity,const UChar * src,int32_t srcLength,const char * locale,UErrorCode * pErrorCode)45 u_strToLower(UChar *dest, int32_t destCapacity,
46              const UChar *src, int32_t srcLength,
47              const char *locale,
48              UErrorCode *pErrorCode) {
49     return ustrcase_mapWithOverlap(
50         ustrcase_getCaseLocale(locale), 0, UCASEMAP_BREAK_ITERATOR_NULL
51         dest, destCapacity,
52         src, srcLength,
53         ustrcase_internalToLower, *pErrorCode);
54 }
55 
56 U_CAPI int32_t U_EXPORT2
u_strToUpper(UChar * dest,int32_t destCapacity,const UChar * src,int32_t srcLength,const char * locale,UErrorCode * pErrorCode)57 u_strToUpper(UChar *dest, int32_t destCapacity,
58              const UChar *src, int32_t srcLength,
59              const char *locale,
60              UErrorCode *pErrorCode) {
61     return ustrcase_mapWithOverlap(
62         ustrcase_getCaseLocale(locale), 0, UCASEMAP_BREAK_ITERATOR_NULL
63         dest, destCapacity,
64         src, srcLength,
65         ustrcase_internalToUpper, *pErrorCode);
66 }
67 
68 U_NAMESPACE_BEGIN
69 
toLower(const char * locale,uint32_t options,const UChar * src,int32_t srcLength,UChar * dest,int32_t destCapacity,Edits * edits,UErrorCode & errorCode)70 int32_t CaseMap::toLower(
71         const char *locale, uint32_t options,
72         const UChar *src, int32_t srcLength,
73         UChar *dest, int32_t destCapacity, Edits *edits,
74         UErrorCode &errorCode) {
75     return ustrcase_map(
76         ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
77         dest, destCapacity,
78         src, srcLength,
79         ustrcase_internalToLower, edits, errorCode);
80 }
81 
toUpper(const char * locale,uint32_t options,const UChar * src,int32_t srcLength,UChar * dest,int32_t destCapacity,Edits * edits,UErrorCode & errorCode)82 int32_t CaseMap::toUpper(
83         const char *locale, uint32_t options,
84         const UChar *src, int32_t srcLength,
85         UChar *dest, int32_t destCapacity, Edits *edits,
86         UErrorCode &errorCode) {
87     return ustrcase_map(
88         ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
89         dest, destCapacity,
90         src, srcLength,
91         ustrcase_internalToUpper, edits, errorCode);
92 }
93 
94 U_NAMESPACE_END
95