1 /*
2 *******************************************************************************
3 *
4 * © 2016 and later: Unicode, Inc. and others.
5 * License & terms of use: http://www.unicode.org/copyright.html
6 *
7 *******************************************************************************
8 *******************************************************************************
9 *
10 * Copyright (C) 2003-2004, International Business Machines
11 * Corporation and others. All Rights Reserved.
12 *
13 ****
14 *
15 * Case folding examples, in C
16 *
17 *******************************************************************************
18 */
19
20 #include "unicode/uchar.h"
21 #include "unicode/ustring.h"
22 #include "unicode/utypes.h"
23 #include "unicode/ustdio.h"
24
25 /* Note: don't use 'k' or 'K' because we might be on EBCDIC */
26
c_main(UFILE * out)27 int c_main(UFILE *out)
28 {
29 UChar32 ch;
30 UErrorCode errorCode = U_ZERO_ERROR;
31 static const UChar upper[] = {0x61, 0x42, 0x49, 0}; /* upper = "aBI" */
32 static const UChar lower[] = {0x61, 0x42, 0x69, 0}; /* lower = "abi" */
33 /* unfold = "aB LATIN SMALL LETTER DOTLESS I" */
34 static const UChar unfold[] = {0x61, 0x42, 0x131, 0} ;
35 UChar buffer[32];
36 const UChar char_k = 0x006b; /* 'k' */
37 const UChar char_K = 0x004b; /* 'K' */
38
39 int length;
40
41 printf("** C Case Mapping Sample\n");
42
43 /* uchar.h APIs, single character case mapping */
44 ch = u_toupper(char_k); /* ch = 'K' */
45 u_fprintf(out, "toupper(%C) = %C\n", char_k, ch);
46 ch = u_tolower(ch); /* ch = 'k' */
47 u_fprintf(out, "tolower() = %C\n", ch);
48 ch = u_totitle(char_k); /* ch = 'K' */
49 u_fprintf(out, "totitle(%C) = %C\n", char_k, ch);
50 ch = u_foldCase(char_K, U_FOLD_CASE_DEFAULT); /* ch = 'k' */
51 u_fprintf(out, "u_foldCase(%C, U_FOLD_CASE_DEFAULT) = %C\n", char_K, (UChar) ch);
52
53 /* ustring.h APIs, UChar * string case mapping with a Turkish locale */
54 /* result buffer = "ab?" latin small letter a, latin small letter b, latin
55 small letter dotless i */
56 length = u_strToLower(buffer, sizeof(buffer)/sizeof(buffer[0]), upper,
57 sizeof(upper)/sizeof(upper[0]), "tr", &errorCode);
58 if(U_FAILURE(errorCode) || buffer[length]!=0) {
59 u_fprintf(out, "error in u_strToLower(Turkish locale)=%ld error=%s\n", length,
60 u_errorName(errorCode));
61 }
62
63 u_fprintf(out, "u_strToLower(%S, turkish) -> %S\n", upper, buffer);
64
65
66 /* ustring.h APIs, UChar * string case mapping with a English locale */
67 /* result buffer = "ABI" latin CAPITAL letter A, latin capital letter B,
68 latin capital letter I */
69 length = u_strToUpper(buffer, sizeof(buffer)/sizeof(buffer[0]), upper,
70 sizeof(upper)/sizeof(upper[0]), "en", &errorCode);
71 if(U_FAILURE(errorCode) || buffer[length]!=0) {
72 u_fprintf(out, "error in u_strToLower(English locale)=%ld error=%s\n", length,
73 u_errorName(errorCode));
74 }
75 u_fprintf(out, "u_strToUpper(%S, english) -> %S\n", lower, buffer);
76
77
78 /* ustring.h APIs, UChar * string case folding */
79 /* result buffer = "abi" */
80 length = u_strFoldCase(buffer, sizeof(buffer)/sizeof(buffer[0]), unfold,
81 sizeof(unfold)/sizeof(unfold[0]), U_FOLD_CASE_DEFAULT,
82 &errorCode);
83 if(U_FAILURE(errorCode) || buffer[length]!=0) {
84 u_fprintf(out, "error in u_strFoldCase()=%ld error=%s\n", length,
85 u_errorName(errorCode));
86 }
87 u_fprintf(out, "u_strFoldCase(%S, U_FOLD_CASE_DEFAULT) -> %S\n", unfold, buffer);
88 u_fprintf(out, "\n** end of C sample\n");
89
90 return 0;
91 }
92