LowerCase.c

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#include                <ctype.h>
#include                <string.h>
#include                "FBLib_string.h"
 
void LowerCase(char *string)
{
  TRACEENTER();
 
  char                 *p, *s;
  byte                  UTF8[5];
  byte                  BytesPerCharacter;
 
  p = string;
  while(*p)
  {
    isUTF8Char(p, &BytesPerCharacter);
    if(BytesPerCharacter > 1)
    {
      memcpy(UTF8, p, BytesPerCharacter);
      UTF8[BytesPerCharacter] = '\0';
      s = strstr(UTF8Upper, UTF8);
      if(s) memcpy(p, &UTF8Lower[(dword)s - (dword)UTF8Upper], BytesPerCharacter);
    }
    else
    {
      s = strchr(AnsiUpper, *p);
      if(s)
      {
        *p = AnsiLower[(dword)s - (dword)AnsiUpper];
      }
      else
      {
        *p = tolower(*p);
      }
    }
 
    p += BytesPerCharacter;
 
  }
 
  TRACEEXIT();
}