FM / case

/usr/share/doc/libicu-devel/samples/case/

/usr/share/doc/libicu-devel/samples/case

Name	Size	Mode	Actions
case.cpp	2870	0644	edit dl rm
case.sln	1198	0644	edit dl rm
case.vcxproj	9269	0644	edit dl rm
case.vcxproj.filters	966	0644	edit dl rm
Makefile	649	0644	edit dl rm
readme.txt	2213	0644	edit dl rm
ucase.c	3488	0644	edit dl rm

Edit: /usr/share/doc/libicu-devel/samples/case/ucase.c (3488B)

/*
*******************************************************************************
*
*   © 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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