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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#define import_spp
#define import_libc
#define import_stdio
#include <iraf.h>
#include "config.h"
#include "clmodes.h"
#include "operand.h"
#include "mem.h"
#include "grammar.h"
#include "opcodes.h"
#include "param.h"
#include "task.h"
#include "errs.h"
#include "construct.h"
#include "ytab.h" /* pick up yacc token #defines */
#define TRIM_LEFT 1
#define TRIM_RIGHT 2
extern int do_error; /* runtime error handling */
extern ErrCom errcom;
extern int optbl[];
extern char *ifnames[];
/* MULTOP --
*/
void
multop (
int opcode,
int op_index,
int nargs
)
{
int i, n, subi[2];
int trim_side = TRIM_LEFT|TRIM_RIGHT;
char *trim = " \t";
char sbuf[SZ_LINE+1], from[SZ_LINE+1], to[SZ_LINE+1];
char *sb = sbuf;
struct operand o;
int op = optbl[op_index];
memset (to, 0, SZ_LINE+1);
memset (from, 0, SZ_LINE+1);
memset (sbuf, 0, SZ_LINE+1);
switch (op & OP_MASK) {
case OP_NSCAN:
if (nargs > 0)
cl_error (E_UERR, "nscan has no arguments");
o.o_type = OT_INT;
o.o_val.v_i = get_nscanval();
pushop (&o);
break;
case OP_MAX:
case OP_MIN:
if (nargs <= 0)
cl_error (E_UERR, e_geonearg, ifnames[op_index]);
/* just leave top op if its the only one.
*/
if (nargs > 1) {
op &= OP_MASK; /* avoid masking for every loop */
while (--nargs)
binop (op);
}
break;
case OP_STRSUB:
if (nargs != 3)
cl_error (E_UERR, "strsub requires 3 arguments");
opcast (OT_STRING); /* get old value */
o = popop();
strcpy (to, o.o_val.v_s);
opcast (OT_STRING); /* get new value */
o = popop();
strcpy (from, o.o_val.v_s);
opcast (OT_STRING); /* get string arg */
o = popop();
strcpy (sbuf, o.o_val.v_s); /* substitute strings */
str_replace (&sb, from, to);
o.o_val.v_s = sbuf;
pushop (&o);
break;
case OP_SUBSTR:
if (nargs != 3)
cl_error (E_UERR, "substr requires 3 arguments");
for (n=1; n >= 0; n--) { /* get indices */
opcast (OT_INT);
o = popop();
subi[n] = o.o_val.v_i;
}
opcast (OT_STRING); /* get string arg */
o = popop();
if (subi[1] >= subi[0]) {
n = subi[1] - subi[0] + 1;
strncpy (sbuf, &o.o_val.v_s[subi[0]-1], n);
} else {
/* Reverse the string. */
n = subi[0] - subi[1] + 1;
for (i = 0; i < n; i++)
sbuf[i] = o.o_val.v_s[subi[0]-i-1];
}
sbuf[n] = '\0';
o.o_val.v_s = sbuf;
pushop (&o);
break;
case OP_TRIML:
trim_side &= ~TRIM_RIGHT;
goto trim_;
case OP_TRIMR:
trim_side &= ~TRIM_LEFT;
goto trim_;
case OP_TRIM:
{
int o1, o2;
struct operand istr;
char *index();
extern void *memset();
trim_:
if (nargs >= 2) {
/* Get the chars to trim, otherwise its whitespace. */
opcast (OT_STRING);
trim = popop().o_val.v_s;
}
istr = popop();
o1 = 0;
o2 = strlen (istr.o_val.v_s) - 1;
memset (sbuf, 0, SZ_LINE);
if (trim_side & TRIM_LEFT)
while (index (trim, (int)istr.o_val.v_s[o1])) o1++;
if (trim_side & TRIM_RIGHT) {
while (index (trim, (int)istr.o_val.v_s[o2])) o2--;
istr.o_val.v_s[++o2] = '\0';
}
strncpy (sbuf, &istr.o_val.v_s[o1], o2-o1+1);
o.o_type = OT_STRING;
o.o_val.v_s = sbuf;
pushop (&o);
}
break;
case OP_ERRPOP:
if (nargs > 0)
cl_error (E_UERR, "errpop has no arguments");
o.o_type = OT_INT;
o.o_val.v_i = errcom.errflag;
do_error = YES;
errcom.nhandlers--;
pushop (&o);
break;
case OP_ERRPEEK:
if (nargs > 0)
cl_error (E_UERR, "errpeek has no arguments");
o.o_type = OT_INT;
o.o_val.v_i = errcom.errflag;
pushop (&o);
break;
case OP_ERRMSG:
if (nargs > 0)
cl_error (E_UERR, "errmsg has no arguments");
o.o_type = OT_STRING;
o.o_val.v_s = errcom.errmsg;
pushop (&o);
break;
case OP_ERRCODE:
if (nargs > 0)
cl_error (E_UERR, "errcode has no arguments");
o.o_type = OT_INT;
o.o_val.v_i = errcom.errcode;
pushop (&o);
break;
case OP_ERRTASK:
if (nargs > 0)
cl_error (E_UERR, "errmsg has no arguments");
o.o_type = OT_STRING;
o.o_val.v_s = errcom.task;
pushop (&o);
break;
default:
goto err;
}
return;
err: cl_error (E_IERR, e_badsw, op, "intrfunc()");
}
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