File: [local] / OpenXM_contrib2 / asir2000 / builtin / list.c (download)
Revision 1.1.1.1 (vendor branch), Fri Dec 3 07:39:07 1999 UTC (24 years, 7 months ago) by noro
Branch: NORO
CVS Tags: RELEASE_20000124, RELEASE_1_1_2, ASIR2000 Changes since 1.1: +0 -0
lines
Imported asir2000 as OpenXM_contrib2/asir2000.
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/* $OpenXM: OpenXM_contrib2/asir2000/builtin/list.c,v 1.1.1.1 1999/12/03 07:39:07 noro Exp $ */
#include "ca.h"
#include "parse.h"
void Pcar(), Pcdr(), Pcons(), Pappend(), Preverse(), Plength();
struct ftab list_tab[] = {
{"car",Pcar,1},
{"cdr",Pcdr,1},
{"cons",Pcons,2},
{"append",Pappend,2},
{"reverse",Preverse,1},
{"length",Plength,1},
{0,0,0},
};
void Pcar(arg,rp)
NODE arg;
pointer *rp;
{
asir_assert(ARG0(arg),O_LIST,"car");
if ( !BDY((LIST)ARG0(arg)) )
*rp = ARG0(arg);
else
*rp = (pointer)BDY(BDY((LIST)ARG0(arg)));
}
void Pcdr(arg,rp)
NODE arg;
LIST *rp;
{
asir_assert(ARG0(arg),O_LIST,"cdr");
if ( !BDY((LIST)ARG0(arg)) )
*rp = (LIST)ARG0(arg);
else
MKLIST(*rp,NEXT(BDY((LIST)ARG0(arg))));
}
void Pcons(arg,rp)
NODE arg;
LIST *rp;
{
NODE t;
asir_assert(ARG1(arg),O_LIST,"cons");
MKNODE(t,ARG0(arg),BDY((LIST)ARG1(arg))); MKLIST(*rp,t);
}
void Pappend(arg,rp)
NODE arg;
LIST *rp;
{
NODE t,t0,n;
asir_assert(ARG0(arg),O_LIST,"append");
asir_assert(ARG1(arg),O_LIST,"append");
if ( !(n = BDY((LIST)ARG0(arg))) )
*rp = (LIST)ARG1(arg);
else {
for ( t0 = 0; n; n = NEXT(n) ) {
NEXTNODE(t0,t); BDY(t) = BDY(n);
}
NEXT(t) = BDY((LIST)ARG1(arg));
MKLIST(*rp,t0);
}
}
void Preverse(arg,rp)
NODE arg;
LIST *rp;
{
NODE t,t1,n;
asir_assert(ARG0(arg),O_LIST,"reverse");
if ( !(n = BDY((LIST)ARG0(arg))) )
*rp = (LIST)ARG0(arg);
else {
for ( t = 0; n; n = NEXT(n) ) {
MKNODE(t1,BDY(n),t); t = t1;
}
MKLIST(*rp,t);
}
}
void Plength(arg,rp)
NODE arg;
Q *rp;
{
NODE n;
int i;
asir_assert(ARG0(arg),O_LIST,"length");
n = BDY((LIST)ARG0(arg));
for ( i = 0; n; i++, n = NEXT(n) );
STOQ(i,*rp);
}