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