1 /* 2 ******************************************************************************* 3 * 4 * 2016 and later: Unicode, Inc. and others. 5 * License & terms of use: http://www.unicode.org/copyright.html#License 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 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
