[p5sagit/p5-mst-13.2.git] / evalargs.xc

/* This file is included by eval.c.  It's separate from eval.c to keep
 * kit sizes from getting too big.
 */

/* $Header: evalargs.xc,v 3.0.1.5 90/03/27 15:54:42 lwall Locked $
 *
 * $Log:	evalargs.xc,v $
 * Revision 3.0.1.5  90/03/27  15:54:42  lwall
 * patch16: MSDOS support
 * 
 * Revision 3.0.1.4  90/02/28  17:38:37  lwall
 * patch9: $#foo -= 2 didn't work
 * 
 * Revision 3.0.1.3  89/11/17  15:25:07  lwall
 * patch5: constant numeric subscripts disappeared in ?:
 * 
 * Revision 3.0.1.2  89/11/11  04:33:05  lwall
 * patch2: Configure now locates csh
 * 
 * Revision 3.0.1.1  89/10/26  23:12:55  lwall
 * patch1: glob didn't free a temporary string
 * 
 * Revision 3.0  89/10/18  15:17:16  lwall
 * 3.0 baseline
 * 
 */

    for (anum = 1; anum <= maxarg; anum++) {
	argflags = arg[anum].arg_flags;
	argtype = arg[anum].arg_type;
	argptr = arg[anum].arg_ptr;
      re_eval:
	switch (argtype) {
	default:
	    st[++sp] = &str_undef;
#ifdef DEBUGGING
	    tmps = "NULL";
#endif
	    break;
	case A_EXPR:
#ifdef DEBUGGING
	    if (debug & 8) {
		tmps = "EXPR";
		deb("%d.EXPR =>\n",anum);
	    }
#endif
	    sp = eval(argptr.arg_arg,
		(argflags & AF_ARYOK) ? G_ARRAY : G_SCALAR, sp);
	    if (sp + (maxarg - anum) > stack->ary_max)
		astore(stack, sp + (maxarg - anum), Nullstr);
	    st = stack->ary_array;	/* possibly reallocated */
	    break;
	case A_CMD:
#ifdef DEBUGGING
	    if (debug & 8) {
		tmps = "CMD";
		deb("%d.CMD (%lx) =>\n",anum,argptr.arg_cmd);
	    }
#endif
	    sp = cmd_exec(argptr.arg_cmd, gimme, sp);
	    if (sp + (maxarg - anum) > stack->ary_max)
		astore(stack, sp + (maxarg - anum), Nullstr);
	    st = stack->ary_array;	/* possibly reallocated */
	    break;
	case A_LARYSTAB:
	    ++sp;
	    switch (optype) {
		case O_ITEM2: argtype = 2; break;
		case O_ITEM3: argtype = 3; break;
		default:      argtype = anum; break;
	    }
	    str = afetch(stab_array(argptr.arg_stab),
		arg[argtype].arg_len - arybase, TRUE);
#ifdef DEBUGGING
	    if (debug & 8) {
		(void)sprintf(buf,"LARYSTAB $%s[%d]",stab_name(argptr.arg_stab),
		    arg[argtype].arg_len);
		tmps = buf;
	    }
#endif
	    goto do_crement;
	case A_ARYSTAB:
	    switch (optype) {
		case O_ITEM2: argtype = 2; break;
		case O_ITEM3: argtype = 3; break;
		default:      argtype = anum; break;
	    }
	    st[++sp] = afetch(stab_array(argptr.arg_stab),
		arg[argtype].arg_len - arybase, FALSE);
	    if (!st[sp])
		st[sp] = &str_undef;
#ifdef DEBUGGING
	    if (debug & 8) {
		(void)sprintf(buf,"ARYSTAB $%s[%d]",stab_name(argptr.arg_stab),
		    arg[argtype].arg_len);
		tmps = buf;
	    }
#endif
	    break;
	case A_STAR:
	    st[++sp] = (STR*)argptr.arg_stab;
#ifdef DEBUGGING
	    if (debug & 8) {
		(void)sprintf(buf,"STAR *%s",stab_name(argptr.arg_stab));
		tmps = buf;
	    }
#endif
	    break;
	case A_LSTAR:
	    str = st[++sp] = (STR*)argptr.arg_stab;
#ifdef DEBUGGING
	    if (debug & 8) {
		(void)sprintf(buf,"LSTAR *%s",stab_name(argptr.arg_stab));
		tmps = buf;
	    }
#endif
	    break;
	case A_STAB:
	    st[++sp] = STAB_STR(argptr.arg_stab);
#ifdef DEBUGGING
	    if (debug & 8) {
		(void)sprintf(buf,"STAB $%s",stab_name(argptr.arg_stab));
		tmps = buf;
	    }
#endif
	    break;
	case A_LEXPR:
#ifdef DEBUGGING
	    if (debug & 8) {
		tmps = "LEXPR";
		deb("%d.LEXPR =>\n",anum);
	    }
#endif
	    if (argflags & AF_ARYOK) {
		sp = eval(argptr.arg_arg, G_ARRAY, sp);
		if (sp + (maxarg - anum) > stack->ary_max)
		    astore(stack, sp + (maxarg - anum), Nullstr);
		st = stack->ary_array;	/* possibly reallocated */
	    }
	    else {
		sp = eval(argptr.arg_arg, G_SCALAR, sp);
		st = stack->ary_array;	/* possibly reallocated */
		str = st[sp];
		goto do_crement;
	    }
	    break;
	case A_LVAL:
#ifdef DEBUGGING
	    if (debug & 8) {
		(void)sprintf(buf,"LVAL $%s",stab_name(argptr.arg_stab));
		tmps = buf;
	    }
#endif
	    ++sp;
	    str = STAB_STR(argptr.arg_stab);
	    if (!str)
		fatal("panic: A_LVAL");
	  do_crement:
	    assigning = TRUE;
	    if (argflags & AF_PRE) {
		if (argflags & AF_UP)
		    str_inc(str);
		else
		    str_dec(str);
		STABSET(str);
		st[sp] = str;
		str = arg->arg_ptr.arg_str;
	    }
	    else if (argflags & AF_POST) {
		st[sp] = str_static(str);
		if (argflags & AF_UP)
		    str_inc(str);
		else
		    str_dec(str);
		STABSET(str);
		str = arg->arg_ptr.arg_str;
	    }
	    else
		st[sp] = str;
	    break;
	case A_LARYLEN:
	    ++sp;
	    stab = argptr.arg_stab;
	    str = stab_array(argptr.arg_stab)->ary_magic;
	    if (optype != O_SASSIGN || argflags & (AF_PRE|AF_POST))
		str_numset(str,(double)(stab_array(stab)->ary_fill+arybase));
#ifdef DEBUGGING
	    tmps = "LARYLEN";
#endif
	    if (!str)
		fatal("panic: A_LEXPR");
	    goto do_crement;
	case A_ARYLEN:
	    stab = argptr.arg_stab;
	    st[++sp] = stab_array(stab)->ary_magic;
	    str_numset(st[sp],(double)(stab_array(stab)->ary_fill+arybase));
#ifdef DEBUGGING
	    tmps = "ARYLEN";
#endif
	    break;
	case A_SINGLE:
	    st[++sp] = argptr.arg_str;
#ifdef DEBUGGING
	    tmps = "SINGLE";
#endif
	    break;
	case A_DOUBLE:
	    (void) interp(str,argptr.arg_str,sp);
	    st = stack->ary_array;
	    st[++sp] = str;
#ifdef DEBUGGING
	    tmps = "DOUBLE";
#endif
	    break;
	case A_BACKTICK:
	    tmps = str_get(interp(str,argptr.arg_str,sp));
	    st = stack->ary_array;
#ifdef TAINT
	    taintproper("Insecure dependency in ``");
#endif
	    fp = mypopen(tmps,"r");
	    str_set(str,"");
	    if (fp) {
		while (str_gets(str,fp,str->str_cur) != Nullch)
		    ;
		statusvalue = mypclose(fp);
	    }
	    else
		statusvalue = -1;

	    st[++sp] = str;
#ifdef DEBUGGING
	    tmps = "BACK";
#endif
	    break;
	case A_WANTARRAY:
	    {
		if (wantarray == G_ARRAY)
		    st[++sp] = &str_yes;
		else
		    st[++sp] = &str_no;
	    }
#ifdef DEBUGGING
	    tmps = "WANTARRAY";
#endif
	    break;
	case A_INDREAD:
	    last_in_stab = stabent(str_get(STAB_STR(argptr.arg_stab)),TRUE);
	    old_record_separator = record_separator;
	    goto do_read;
	case A_GLOB:
	    argflags |= AF_POST;	/* enable newline chopping */
	    last_in_stab = argptr.arg_stab;
	    old_record_separator = record_separator;
#ifdef MSDOS
	    record_separator = 0;
#else
#ifdef CSH
	    record_separator = 0;
#else
	    record_separator = '\n';
#endif	/* !CSH */
#endif	/* !MSDOS */
	    goto do_read;
	case A_READ:
	    last_in_stab = argptr.arg_stab;
	    old_record_separator = record_separator;
	  do_read:
	    if (anum > 1)		/* assign to scalar */
		gimme = G_SCALAR;	/* force context to scalar */
	    ++sp;
	    fp = Nullfp;
	    if (stab_io(last_in_stab)) {
		fp = stab_io(last_in_stab)->ifp;
		if (!fp) {
		    if (stab_io(last_in_stab)->flags & IOF_ARGV) {
			if (stab_io(last_in_stab)->flags & IOF_START) {
			    stab_io(last_in_stab)->flags &= ~IOF_START;
			    stab_io(last_in_stab)->lines = 0;
			    if (alen(stab_array(last_in_stab)) < 0) {
				tmpstr = str_make("-",1); /* assume stdin */
				(void)apush(stab_array(last_in_stab), tmpstr);
			    }
			}
			fp = nextargv(last_in_stab);
			if (!fp) { /* Note: fp != stab_io(last_in_stab)->ifp */
			    (void)do_close(last_in_stab,FALSE); /* now it does*/
			    stab_io(last_in_stab)->flags |= IOF_START;
			}
		    }
		    else if (argtype == A_GLOB) {
			(void) interp(str,stab_val(last_in_stab),sp);
			st = stack->ary_array;
			tmpstr = Str_new(55,0);
#ifdef MSDOS
			str_set(tmpstr, "glob ");
			str_scat(tmpstr,str);
			str_cat(tmpstr," |");
#else
#ifdef CSH
			str_nset(tmpstr,cshname,cshlen);
			str_cat(tmpstr," -cf 'set nonomatch; glob ");
			str_scat(tmpstr,str);
			str_cat(tmpstr,"'|");
#else
			str_set(tmpstr, "echo ");
			str_scat(tmpstr,str);
			str_cat(tmpstr,
			  "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|");
#endif /* !CSH */
#endif /* !MSDOS */
			(void)do_open(last_in_stab,tmpstr->str_ptr,
			  tmpstr->str_cur);
			fp = stab_io(last_in_stab)->ifp;
			str_free(tmpstr);
		    }
		}
	    }
	    if (!fp && dowarn)
		warn("Read on closed filehandle <%s>",stab_name(last_in_stab));
	  keepgoing:
	    if (!fp)
		st[sp] = &str_undef;
	    else if (!str_gets(str,fp, optype == O_RCAT ? str->str_cur : 0)) {
		clearerr(fp);
		if (stab_io(last_in_stab)->flags & IOF_ARGV) {
		    fp = nextargv(last_in_stab);
		    if (fp)
			goto keepgoing;
		    (void)do_close(last_in_stab,FALSE);
		    stab_io(last_in_stab)->flags |= IOF_START;
		}
		else if (argflags & AF_POST) {
		    (void)do_close(last_in_stab,FALSE);
		}
		st[sp] = &str_undef;
		record_separator = old_record_separator;
		if (gimme == G_ARRAY) {
		    --sp;
		    goto array_return;
		}
		break;
	    }
	    else {
		stab_io(last_in_stab)->lines++;
		st[sp] = str;
#ifdef TAINT
		str->str_tainted = 1; /* Anything from the outside world...*/
#endif
		if (argflags & AF_POST) {
		    if (str->str_cur > 0)
			str->str_cur--;
		    if (str->str_ptr[str->str_cur] == record_separator)
			str->str_ptr[str->str_cur] = '\0';
		    else
			str->str_cur++;
		    for (tmps = str->str_ptr; *tmps; tmps++)
			if (!isalpha(*tmps) && !isdigit(*tmps) &&
			    index("$&*(){}[]'\";\\|?<>~`",*tmps))
				break;
		    if (*tmps && stat(str->str_ptr,&statbuf) < 0)
			goto keepgoing;		/* unmatched wildcard? */
		}
		if (gimme == G_ARRAY) {
		    st[sp] = str_static(st[sp]);
		    if (++sp > stack->ary_max) {
			astore(stack, sp, Nullstr);
			st = stack->ary_array;
		    }
		    goto keepgoing;
		}
	    }
	    record_separator = old_record_separator;
#ifdef DEBUGGING
	    tmps = "READ";
#endif
	    break;
	}
#ifdef DEBUGGING
	if (debug & 8)
	    deb("%d.%s = '%s'\n",anum,tmps,str_peek(st[sp]));
#endif
	if (anum < 8)
	    arglast[anum] = sp;
    }
Commit	Line	Data
a687059c	1	/* This file is included by eval.c. It's separate from eval.c to keep
	2	* kit sizes from getting too big.
	3	*/
	4
b1248f16	5	/* $Header: evalargs.xc,v 3.0.1.5 90/03/27 15:54:42 lwall Locked $
a687059c	6	*
a687059c	7	* $Log: evalargs.xc,v $
b1248f16	8	* Revision 3.0.1.5 90/03/27 15:54:42 lwall
	9	* patch16: MSDOS support
	10	*
ac58e20f	11	* Revision 3.0.1.4 90/02/28 17:38:37 lwall
	12	* patch9: $#foo -= 2 didn't work
	13	*
0d3e774c	14	* Revision 3.0.1.3 89/11/17 15:25:07 lwall
	15	* patch5: constant numeric subscripts disappeared in ?:
	16	*
bf38876a	17	* Revision 3.0.1.2 89/11/11 04:33:05 lwall
	18	* patch2: Configure now locates csh
	19	*
03a14243	20	* Revision 3.0.1.1 89/10/26 23:12:55 lwall
	21	* patch1: glob didn't free a temporary string
	22	*
a687059c	23	* Revision 3.0 89/10/18 15:17:16 lwall
	24	* 3.0 baseline
	25	*
	26	*/
	27
	28	for (anum = 1; anum <= maxarg; anum++) {
	29	argflags = arg[anum].arg_flags;
	30	argtype = arg[anum].arg_type;
	31	argptr = arg[anum].arg_ptr;
	32	re_eval:
	33	switch (argtype) {
	34	default:
	35	st[++sp] = &str_undef;
	36	#ifdef DEBUGGING
	37	tmps = "NULL";
	38	#endif
	39	break;
	40	case A_EXPR:
	41	#ifdef DEBUGGING
	42	if (debug & 8) {
	43	tmps = "EXPR";
	44	deb("%d.EXPR =>\n",anum);
	45	}
	46	#endif
	47	sp = eval(argptr.arg_arg,
	48	(argflags & AF_ARYOK) ? G_ARRAY : G_SCALAR, sp);
	49	if (sp + (maxarg - anum) > stack->ary_max)
	50	astore(stack, sp + (maxarg - anum), Nullstr);
	51	st = stack->ary_array; /* possibly reallocated */
	52	break;
	53	case A_CMD:
	54	#ifdef DEBUGGING
	55	if (debug & 8) {
	56	tmps = "CMD";
	57	deb("%d.CMD (%lx) =>\n",anum,argptr.arg_cmd);
	58	}
	59	#endif
	60	sp = cmd_exec(argptr.arg_cmd, gimme, sp);
	61	if (sp + (maxarg - anum) > stack->ary_max)
	62	astore(stack, sp + (maxarg - anum), Nullstr);
	63	st = stack->ary_array; /* possibly reallocated */
	64	break;
	65	case A_LARYSTAB:
	66	++sp;
0d3e774c	67	switch (optype) {
	68	case O_ITEM2: argtype = 2; break;
	69	case O_ITEM3: argtype = 3; break;
	70	default: argtype = anum; break;
	71	}
a687059c	72	str = afetch(stab_array(argptr.arg_stab),
0d3e774c	73	arg[argtype].arg_len - arybase, TRUE);
a687059c	74	#ifdef DEBUGGING
	75	if (debug & 8) {
	76	(void)sprintf(buf,"LARYSTAB $%s[%d]",stab_name(argptr.arg_stab),
0d3e774c	77	arg[argtype].arg_len);
a687059c	78	tmps = buf;
	79	}
	80	#endif
	81	goto do_crement;
	82	case A_ARYSTAB:
0d3e774c	83	switch (optype) {
	84	case O_ITEM2: argtype = 2; break;
	85	case O_ITEM3: argtype = 3; break;
	86	default: argtype = anum; break;
	87	}
a687059c	88	st[++sp] = afetch(stab_array(argptr.arg_stab),
0d3e774c	89	arg[argtype].arg_len - arybase, FALSE);
a687059c	90	if (!st[sp])
	91	st[sp] = &str_undef;
	92	#ifdef DEBUGGING
	93	if (debug & 8) {
	94	(void)sprintf(buf,"ARYSTAB $%s[%d]",stab_name(argptr.arg_stab),
0d3e774c	95	arg[argtype].arg_len);
a687059c	96	tmps = buf;
	97	}
	98	#endif
	99	break;
	100	case A_STAR:
	101	st[++sp] = (STR*)argptr.arg_stab;
	102	#ifdef DEBUGGING
	103	if (debug & 8) {
	104	(void)sprintf(buf,"STAR *%s",stab_name(argptr.arg_stab));
	105	tmps = buf;
	106	}
	107	#endif
	108	break;
	109	case A_LSTAR:
	110	str = st[++sp] = (STR*)argptr.arg_stab;
	111	#ifdef DEBUGGING
	112	if (debug & 8) {
	113	(void)sprintf(buf,"LSTAR *%s",stab_name(argptr.arg_stab));
	114	tmps = buf;
	115	}
	116	#endif
	117	break;
	118	case A_STAB:
	119	st[++sp] = STAB_STR(argptr.arg_stab);
	120	#ifdef DEBUGGING
	121	if (debug & 8) {
	122	(void)sprintf(buf,"STAB $%s",stab_name(argptr.arg_stab));
	123	tmps = buf;
	124	}
	125	#endif
	126	break;
	127	case A_LEXPR:
	128	#ifdef DEBUGGING
	129	if (debug & 8) {
	130	tmps = "LEXPR";
	131	deb("%d.LEXPR =>\n",anum);
	132	}
	133	#endif
	134	if (argflags & AF_ARYOK) {
	135	sp = eval(argptr.arg_arg, G_ARRAY, sp);
	136	if (sp + (maxarg - anum) > stack->ary_max)
	137	astore(stack, sp + (maxarg - anum), Nullstr);
	138	st = stack->ary_array; /* possibly reallocated */
	139	}
	140	else {
	141	sp = eval(argptr.arg_arg, G_SCALAR, sp);
	142	st = stack->ary_array; /* possibly reallocated */
	143	str = st[sp];
	144	goto do_crement;
	145	}
	146	break;
	147	case A_LVAL:
	148	#ifdef DEBUGGING
	149	if (debug & 8) {
	150	(void)sprintf(buf,"LVAL $%s",stab_name(argptr.arg_stab));
	151	tmps = buf;
	152	}
	153	#endif
	154	++sp;
	155	str = STAB_STR(argptr.arg_stab);
	156	if (!str)
	157	fatal("panic: A_LVAL");
	158	do_crement:
	159	assigning = TRUE;
160	if (argflags & AF_PRE) {
161	if (argflags & AF_UP)
162	str_inc(str);
163	else
164	str_dec(str);
165	STABSET(str);
166	st[sp] = str;
167	str = arg->arg_ptr.arg_str;
168	}
169	else if (argflags & AF_POST) {
170	st[sp] = str_static(str);
171	if (argflags & AF_UP)
172	str_inc(str);
173	else
174	str_dec(str);
175	STABSET(str);
176	str = arg->arg_ptr.arg_str;
177	}
178	else
179	st[sp] = str;
180	break;
181	case A_LARYLEN:
182	++sp;
183	stab = argptr.arg_stab;
184	str = stab_array(argptr.arg_stab)->ary_magic;
ac58e20f	185	if (optype != O_SASSIGN \|\| argflags & (AF_PRE\|AF_POST))
a687059c	186	str_numset(str,(double)(stab_array(stab)->ary_fill+arybase));
	187	#ifdef DEBUGGING
	188	tmps = "LARYLEN";
	189	#endif
	190	if (!str)
	191	fatal("panic: A_LEXPR");
	192	goto do_crement;
	193	case A_ARYLEN:
	194	stab = argptr.arg_stab;
	195	st[++sp] = stab_array(stab)->ary_magic;
	196	str_numset(st[sp],(double)(stab_array(stab)->ary_fill+arybase));
	197	#ifdef DEBUGGING
	198	tmps = "ARYLEN";
	199	#endif
	200	break;
	201	case A_SINGLE:
	202	st[++sp] = argptr.arg_str;
	203	#ifdef DEBUGGING
	204	tmps = "SINGLE";
	205	#endif
	206	break;
	207	case A_DOUBLE:
	208	(void) interp(str,argptr.arg_str,sp);
	209	st = stack->ary_array;
	210	st[++sp] = str;
	211	#ifdef DEBUGGING
	212	tmps = "DOUBLE";
	213	#endif
	214	break;
	215	case A_BACKTICK:
	216	tmps = str_get(interp(str,argptr.arg_str,sp));
	217	st = stack->ary_array;
	218	#ifdef TAINT
	219	taintproper("Insecure dependency in ``");
	220	#endif
	221	fp = mypopen(tmps,"r");
	222	str_set(str,"");
	223	if (fp) {
	224	while (str_gets(str,fp,str->str_cur) != Nullch)
	225	;
	226	statusvalue = mypclose(fp);
	227	}
	228	else
	229	statusvalue = -1;
	230
	231	st[++sp] = str;
	232	#ifdef DEBUGGING
	233	tmps = "BACK";
	234	#endif
	235	break;
	236	case A_WANTARRAY:
	237	{
a687059c	238	if (wantarray == G_ARRAY)
	239	st[++sp] = &str_yes;
	240	else
	241	st[++sp] = &str_no;
	242	}
	243	#ifdef DEBUGGING
	244	tmps = "WANTARRAY";
	245	#endif
	246	break;
	247	case A_INDREAD:
	248	last_in_stab = stabent(str_get(STAB_STR(argptr.arg_stab)),TRUE);
	249	old_record_separator = record_separator;
	250	goto do_read;
	251	case A_GLOB:
	252	argflags \|= AF_POST; /* enable newline chopping */
	253	last_in_stab = argptr.arg_stab;
	254	old_record_separator = record_separator;
b1248f16	255	#ifdef MSDOS
	256	record_separator = 0;
	257	#else
bf38876a	258	#ifdef CSH
	259	record_separator = 0;
	260	#else
	261	record_separator = '\n';
b1248f16	262	#endif /* !CSH */
b1248f16	263	#endif /* !MSDOS */
a687059c	264	goto do_read;
	265	case A_READ:
	266	last_in_stab = argptr.arg_stab;
	267	old_record_separator = record_separator;
	268	do_read:
	269	if (anum > 1) /* assign to scalar */
	270	gimme = G_SCALAR; /* force context to scalar */
	271	++sp;
	272	fp = Nullfp;
	273	if (stab_io(last_in_stab)) {
	274	fp = stab_io(last_in_stab)->ifp;
	275	if (!fp) {
	276	if (stab_io(last_in_stab)->flags & IOF_ARGV) {
	277	if (stab_io(last_in_stab)->flags & IOF_START) {
	278	stab_io(last_in_stab)->flags &= ~IOF_START;
	279	stab_io(last_in_stab)->lines = 0;
	280	if (alen(stab_array(last_in_stab)) < 0) {
	281	tmpstr = str_make("-",1); /* assume stdin */
	282	(void)apush(stab_array(last_in_stab), tmpstr);
	283	}
	284	}
	285	fp = nextargv(last_in_stab);
bf38876a	286	if (!fp) { /* Note: fp != stab_io(last_in_stab)->ifp */
a687059c	287	(void)do_close(last_in_stab,FALSE); /* now it does*/
bf38876a	288	stab_io(last_in_stab)->flags \|= IOF_START;
bf38876a	289	}
a687059c	290	}
	291	else if (argtype == A_GLOB) {
	292	(void) interp(str,stab_val(last_in_stab),sp);
	293	st = stack->ary_array;
	294	tmpstr = Str_new(55,0);
b1248f16	295	#ifdef MSDOS
	296	str_set(tmpstr, "glob ");
	297	str_scat(tmpstr,str);
	298	str_cat(tmpstr," \|");
	299	#else
bf38876a	300	#ifdef CSH
	301	str_nset(tmpstr,cshname,cshlen);
	302	str_cat(tmpstr," -cf 'set nonomatch; glob ");
	303	str_scat(tmpstr,str);
	304	str_cat(tmpstr,"'\|");
	305	#else
	306	str_set(tmpstr, "echo ");
	307	str_scat(tmpstr,str);
	308	str_cat(tmpstr,
	309	"\|tr -s ' \t\f\r' '\\012\\012\\012\\012'\|");
b1248f16	310	#endif /* !CSH */
b1248f16	311	#endif /* !MSDOS */
ac58e20f	312	(void)do_open(last_in_stab,tmpstr->str_ptr,
ac58e20f	313	tmpstr->str_cur);
a687059c	314	fp = stab_io(last_in_stab)->ifp;
03a14243	315	str_free(tmpstr);
a687059c	316	}
	317	}
	318	}
	319	if (!fp && dowarn)
	320	warn("Read on closed filehandle <%s>",stab_name(last_in_stab));
	321	keepgoing:
	322	if (!fp)
	323	st[sp] = &str_undef;
	324	else if (!str_gets(str,fp, optype == O_RCAT ? str->str_cur : 0)) {
	325	clearerr(fp);
	326	if (stab_io(last_in_stab)->flags & IOF_ARGV) {
	327	fp = nextargv(last_in_stab);
	328	if (fp)
	329	goto keepgoing;
	330	(void)do_close(last_in_stab,FALSE);
	331	stab_io(last_in_stab)->flags \|= IOF_START;
	332	}
	333	else if (argflags & AF_POST) {
	334	(void)do_close(last_in_stab,FALSE);
	335	}
	336	st[sp] = &str_undef;
	337	record_separator = old_record_separator;
	338	if (gimme == G_ARRAY) {
	339	--sp;
	340	goto array_return;
	341	}
	342	break;
	343	}
	344	else {
	345	stab_io(last_in_stab)->lines++;
	346	st[sp] = str;
	347	#ifdef TAINT
	348	str->str_tainted = 1; /* Anything from the outside world...*/
	349	#endif
	350	if (argflags & AF_POST) {
	351	if (str->str_cur > 0)
	352	str->str_cur--;
	353	if (str->str_ptr[str->str_cur] == record_separator)
	354	str->str_ptr[str->str_cur] = '\0';
	355	else
	356	str->str_cur++;
	357	for (tmps = str->str_ptr; *tmps; tmps++)
	358	if (!isalpha(tmps) && !isdigit(tmps) &&
	359	index("$&(){}[]'\";\\\|?<>~`",tmps))
	360	break;
	361	if (*tmps && stat(str->str_ptr,&statbuf) < 0)
	362	goto keepgoing; /* unmatched wildcard? */
	363	}
	364	if (gimme == G_ARRAY) {
	365	st[sp] = str_static(st[sp]);
	366	if (++sp > stack->ary_max) {
	367	astore(stack, sp, Nullstr);
	368	st = stack->ary_array;
	369	}
	370	goto keepgoing;
	371	}
	372	}
	373	record_separator = old_record_separator;
	374	#ifdef DEBUGGING
	375	tmps = "READ";
	376	#endif
	377	break;
	378	}
	379	#ifdef DEBUGGING
380	if (debug & 8)
381	deb("%d.%s = '%s'\n",anum,tmps,str_peek(st[sp]));
382	#endif
383	if (anum < 8)
384	arglast[anum] = sp;
385	}