On Mon, 25 Feb 2002 20:52:38 +0100 (CET)
Bruno Haible <[EMAIL PROTECTED]> wrote:
> > /*
> > * Returns a pointer to the character at off withing the multi-byte string
> ^^^^^^
> Emphasize: at _screen_position_ off.
Actually I think I really do want characters:
> > * src not examining more than sn bytes.
> > */
> > char *
> > mbsnoff(char *src, int off, size_t sn)
> > {
> > unsigned long ucs;
> > int w;
> > size_t n;
> > mbstate_t ps;
> >
> > ucs = 1;
> > memset(&ps, 0, sizeof(ps));
> >
> > if (sn > INT_MAX) {
> > sn = INT_MAX;
> > }
> > if (off < 0) {
> > off = INT_MAX;
> > }
while (sn > 0 && (n = mbrtowc(&ucs, src, sn, &ps)) != (size_t)-2) {
if (n == (size_t)-1) {
return NULL;
}
if ((w = wcwidth(ucs)) == -1) {
w = 1;
}
if (w > off) {
break;
}
off -= w;
> > sn -= n;
> > src += n;
> > }
> >
> > return src;
> > }
Thanks,
Mike
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