Viewing file:  ucase.c (3.41 KB) -rw-r--r--
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/*
*******************************************************************************
*
* © 2016 and later: Unicode, Inc. and others.
* License & terms of use: http://www.unicode.org/copyright.html#License
*
*******************************************************************************
*******************************************************************************
*
* Copyright (C) 2003-2004, International Business Machines
* Corporation and others. All Rights Reserved.
*
****
*
* Case folding examples, in C
*
*******************************************************************************
*/
#include "unicode/uchar.h"
#include "unicode/ustring.h"
#include "unicode/utypes.h"
#include "unicode/ustdio.h"
/* Note: don't use 'k' or 'K' because we might be on EBCDIC */
int c_main(UFILE *out)
{
UChar32 ch;
UErrorCode errorCode = U_ZERO_ERROR;
static const UChar upper[] = {0x61, 0x42, 0x49, 0}; /* upper = "aBI" */
static const UChar lower[] = {0x61, 0x42, 0x69, 0}; /* lower = "abi" */
/* unfold = "aB LATIN SMALL LETTER DOTLESS I" */
static const UChar unfold[] = {0x61, 0x42, 0x131, 0} ;
UChar buffer[32];
const UChar char_k = 0x006b; /* 'k' */
const UChar char_K = 0x004b; /* 'K' */
int length;
printf("** C Case Mapping Sample\n");
/* uchar.h APIs, single character case mapping */
ch = u_toupper(char_k); /* ch = 'K' */
u_fprintf(out, "toupper(%C) = %C\n", char_k, ch);
ch = u_tolower(ch); /* ch = 'k' */
u_fprintf(out, "tolower() = %C\n", ch);
ch = u_totitle(char_k); /* ch = 'K' */
u_fprintf(out, "totitle(%C) = %C\n", char_k, ch);
ch = u_foldCase(char_K, U_FOLD_CASE_DEFAULT); /* ch = 'k' */
u_fprintf(out, "u_foldCase(%C, U_FOLD_CASE_DEFAULT) = %C\n", char_K, (UChar) ch);
/* ustring.h APIs, UChar * string case mapping with a Turkish locale */
/* result buffer = "ab?" latin small letter a, latin small letter b, latin
small letter dotless i */
length = u_strToLower(buffer, sizeof(buffer)/sizeof(buffer[0]), upper,
sizeof(upper)/sizeof(upper[0]), "tr", &errorCode);
if(U_FAILURE(errorCode) || buffer[length]!=0) {
u_fprintf(out, "error in u_strToLower(Turkish locale)=%ld error=%s\n", length,
u_errorName(errorCode));
}
u_fprintf(out, "u_strToLower(%S, turkish) -> %S\n", upper, buffer);
/* ustring.h APIs, UChar * string case mapping with a English locale */
/* result buffer = "ABI" latin CAPITAL letter A, latin capital letter B,
latin capital letter I */
length = u_strToUpper(buffer, sizeof(buffer)/sizeof(buffer[0]), upper,
sizeof(upper)/sizeof(upper[0]), "en", &errorCode);
if(U_FAILURE(errorCode) || buffer[length]!=0) {
u_fprintf(out, "error in u_strToLower(English locale)=%ld error=%s\n", length,
u_errorName(errorCode));
}
u_fprintf(out, "u_strToUpper(%S, english) -> %S\n", lower, buffer);
/* ustring.h APIs, UChar * string case folding */
/* result buffer = "abi" */
length = u_strFoldCase(buffer, sizeof(buffer)/sizeof(buffer[0]), unfold,
sizeof(unfold)/sizeof(unfold[0]), U_FOLD_CASE_DEFAULT,
&errorCode);
if(U_FAILURE(errorCode) || buffer[length]!=0) {
u_fprintf(out, "error in u_strFoldCase()=%ld error=%s\n", length,
u_errorName(errorCode));
}
u_fprintf(out, "u_strFoldCase(%S, U_FOLD_CASE_DEFAULT) -> %S\n", unfold, buffer);
u_fprintf(out, "\n** end of C sample\n");
return 0;
}
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