Sweden-Number/win32/string32.c

90 lines
1.5 KiB
C

/*
* Unicode string management
*
* Copyright 1996 Martin von Loewis
*
* Conversion between Unicode and ISO-8859-1 is inherently lossy,
* so the conversion code should be called only if it does not matter
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "windows.h"
#include "string32.h"
#include "xmalloc.h"
void STRING32_UniToAnsi(LPSTR dest,LPCWSTR src)
{
static int have_warned=0;
while(*src)
{
if(*src>255 && !have_warned)
{
fprintf(stderr,"Cannot deal with non-ANSI characters\n");
have_warned=1;
}
*dest++=*src++;
}
/* copy the terminator */
*dest = *src;
}
/* FIXME: we need to use unsigned char here, for if
* we got chars with the 7th bit set, we will get
* negative integers -> wrong unicode values
*/
void
STRING32_AnsiToUni(LPWSTR dest,LPCSTR src) {
unsigned char *usrc;
usrc=(unsigned char*)src;
while(*usrc)
*dest++=*usrc++;
*dest = *usrc;
}
LPSTR STRING32_DupUniToAnsi(LPCWSTR src)
{
LPSTR dest=xmalloc(lstrlen32W(src)+1);
STRING32_UniToAnsi(dest,src);
return dest;
}
LPWSTR STRING32_DupAnsiToUni(LPCSTR src)
{
LPWSTR dest=xmalloc(2*strlen(src)+2);
STRING32_AnsiToUni(dest,src);
return dest;
}
/* not an API function */
WCHAR STRING32_tolowerW(WCHAR c)
{
/* FIXME: Unicode */
return tolower(c);
}
LPWSTR
STRING32_lstrchrW(LPCWSTR a,WCHAR c) {
while(*a) {
if (*a==c)
return a;
a++;
}
return NULL;
}
LPWSTR
STRING32_strdupW(LPCWSTR a) {
LPWSTR b;
int len;
len=sizeof(WCHAR)*(lstrlen32W(a)+1);
b=(LPWSTR)xmalloc(len);
memcpy(b,a,len);
return b;
}