// Convert utf8 but strip BOM
FXint FXUTF8Codec::mb2wc(FXwchar& wc,const FXchar* src,FXint nsrc) const {
register FXint n1,n2;
n1=utf2wc(wc,src,nsrc);
if(0<n1 && wc==0xFEFF){
n2=utf2wc(wc,src,nsrc);
if(n2<0) return -n1+n2;
if(n2==0) return 0;
return n1+n2;
}
return n1;
}
// Count multi-byte characters characters needed to convert utf8 from src
FXint FXTextCodec::utf2mblen(const FXchar* src,FXint nsrc) const {
register FXint nr,len=0;
FXchar buffer[64];
FXwchar w;
if(src && 0<nsrc){
do{
nr=utf2wc(w,src,nsrc);
if(nr<=0) return nr;
src+=nr;
nsrc-=nr;
len+=wc2mb(buffer,sizeof(buffer),w);
}
while(0<nsrc);
}
return len;
}
// Convert utf8 characters at src to multi-byte characters at dst
FXint FXTextCodec::utf2mb(FXchar* dst,FXint ndst,const FXchar* src,FXint nsrc) const {
register FXint nr,nw,len=0;
FXwchar w;
if(dst && src && 0<nsrc){
do{
nr=utf2wc(w,src,nsrc);
if(nr<=0) return nr;
src+=nr;
nsrc-=nr;
nw=wc2mb(dst,ndst,w);
if(nw<=0) return nw;
len+=nw;
dst+=nw;
ndst-=nw;
}
while(0<nsrc);
}
return len;
}
// Convert utf8 characters at src to multi-byte characters at dst
FXint FXUTF16Codec::utf2mb(FXchar* dst,FXint ndst,const FXchar* src,FXint nsrc) const {
register FXint nr,nw,len=0;
FXwchar w;
if(dst && src && 0<nsrc){
dst[0]='\xFE';
dst[1]='\xFF';
dst+=2;
len+=2;
while(0<nsrc){
nr=utf2wc(w,src,nsrc);
if(nr<=0) return nr;
src+=nr;
nsrc-=nr;
nw=wc2mb(dst,ndst,w);
if(nw<=0) return nw;
len+=nw;
dst+=nw;
ndst-=nw;
}
}
return len;
}
// Convert multi-byte characters from src to single wide character
FXint FXTextCodec::mb2wc(FXwchar& wc,const FXchar* src,FXint nsrc) const {
return utf2wc(wc,src,nsrc);
}
