147 lines
2.3 KiB
C
147 lines
2.3 KiB
C
/*
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* Unicode string management
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*
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* Copyright 1996 Martin von Loewis
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*
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* Conversion between Unicode and ISO-8859-1 is inherently lossy,
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* so the conversion code should be called only if it does not matter
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include "string32.h"
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#include "xmalloc.h"
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int
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STRING32_UniLen(LPCWSTR s)
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{
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int i;
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for(i=0;*s;s++)
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i++;
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return i;
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}
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void STRING32_UniToAnsi(LPSTR dest,LPCWSTR src)
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{
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static int have_warned=0;
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while(*src)
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{
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if(*src>255 && !have_warned)
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{
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fprintf(stderr,"Cannot deal with non-ANSI characters\n");
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have_warned=1;
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}
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*dest++=*src++;
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}
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/* copy the terminator */
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*dest = *src;
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}
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/* FIXME: we need to use unsigned char here, for if
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* we got chars with the 7th bit set, we will get
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* negative integers -> wrong unicode values
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*/
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void
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STRING32_AnsiToUni(LPWSTR dest,LPCSTR src) {
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unsigned char *usrc;
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usrc=(unsigned char*)src;
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while(*usrc)
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*dest++=*usrc++;
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*dest = *usrc;
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}
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LPSTR STRING32_DupUniToAnsi(LPCWSTR src)
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{
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LPSTR dest=xmalloc(STRING32_UniLen(src)+1);
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STRING32_UniToAnsi(dest,src);
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return dest;
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}
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LPWSTR STRING32_DupAnsiToUni(LPCSTR src)
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{
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LPWSTR dest=xmalloc(2*strlen(src)+2);
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STRING32_AnsiToUni(dest,src);
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return dest;
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}
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LPWSTR STRING32_lstrcpyW(LPWSTR dst, LPCWSTR src)
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{
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register LPWSTR p = dst;
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while ((*p++ = *src++));
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return dst;
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}
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DWORD STRING32_lstrlenW(LPCWSTR str)
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{
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int len;
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for(len=0;*str;str++)
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len++;
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return len;
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}
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/* not an API function */
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WCHAR STRING32_tolowerW(WCHAR c)
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{
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/* FIXME: Unicode */
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return tolower(c);
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}
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int STRING32_lstrcmpniW(LPCWSTR a,LPCWSTR b,DWORD len)
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{
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while(len--)
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{
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WCHAR c1,c2;
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c1 = STRING32_tolowerW(*a);
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c2 = STRING32_tolowerW(*b);
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if(c1<c2)return -1;
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if(c1>c2)return 1;
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if(c1==0 && c2==0)return 0;
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if(c1==0)return -1;
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if(c2==0)return 1;
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a++;
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b++;
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}
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return 0;
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}
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int
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STRING32_lstrcmpW(LPCWSTR a,LPCWSTR b) {
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WCHAR diff;
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while(*a && *b) {
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diff=*a-*b;
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if (diff) return diff;
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a++;
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b++;
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}
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if (*a) return *a;
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if (*b) return -*b;
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return 0;
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}
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LPWSTR
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STRING32_lstrchrW(LPCWSTR a,WCHAR c) {
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while(*a) {
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if (*a==c)
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return a;
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a++;
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}
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return NULL;
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}
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LPWSTR
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STRING32_strdupW(LPCWSTR a) {
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LPWSTR b;
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int len;
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len=sizeof(WCHAR)*(STRING32_UniLen(a)+1);
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b=(LPWSTR)xmalloc(len);
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memcpy(b,a,len);
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return b;
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}
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