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/* $Id: str.C,v 1.14 1999/02/05 22:46:02 dm Exp $ */
/*
*
* Copyright (C) 1998 David Mazieres (dm@uun.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#include "str.h"
void (*const strobj_opdel) (void *) (operator delete);
void
suio_print (suio *uio, const str &s)
{
if (s.len () <= suio::smallbufsize)
uio->copy (s.cstr (), s.len ());
else {
uio->print (s.cstr (), s.len ());
uio->iovcb (wrap (&s.b.Xplug, s.b.Xleak ()));
}
}
const strbuf &
strbuf_cat (const strbuf &b, const char *p, bool copy)
{
suio *uio = b.tosuio ();
if (copy)
uio->copy (p, strlen (p));
else
suio_printcheck (uio, p, strlen (p));
return b;
}
const strbuf &
operator<< (const strbuf &sb, const char *a)
{
return strbuf_cat (sb, a);
}
const strbuf
operator<< (const str &s, const char *a)
{
return strbuf (s).cat (a);
}
str
suio_getline (suio *uio)
{
size_t n = 0;
for (const iovec *v = uio->iov (), *e = uio->iovlim ();
v < e; n += v++->iov_len)
if (void *p = memchr ((char *) v->iov_base, '\n', v->iov_len)) {
n += static_cast<char *> (p) - static_cast<char *> (v->iov_base);
mstr m (n);
uio->copyout (m, n);
uio->rembytes (n + 1);
if (m.len () && m.cstr ()[m.len () - 1] == '\r')
m.setlen (m.len () -1 );
return m;
}
return NULL;
}
strobj *
str::iov2strobj (const iovec *iov, int cnt)
{
size_t l = iovsize (iov, cnt);
strobj *b = strobj::alloc (1 + l);
b->len = l;
char *p = b->dat ();
for (const iovec *end = iov + cnt; iov < end; iov++) {
memcpy (p, iov->iov_base, iov->iov_len);
p += iov->iov_len;
}
*p = '\0';
assert (p == b->dat () + l);
return b;
}
strbuf::strbuf (const char *fmt, ...)
: uio (New refcounted<suio>)
{
va_list ap;
va_start (ap, fmt);
suio_vuprintf (uio, fmt, ap);
va_end (ap);
}
const strbuf &
strbuf::fmt (const char *fmt, ...) const
{
va_list ap;
va_start (ap, fmt);
suio_vuprintf (uio, fmt, ap);
va_end (ap);
return *this;
}
/* For use from the debugger */
const char *
cstr (const str s)
{
return s;
}
const char *
cstrp (const str *s)
{
return *s;
}
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