1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 2.8 */ 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate #define DEBUG 29*0Sstevel@tonic-gate #include <stdio.h> 30*0Sstevel@tonic-gate #include "awk.h" 31*0Sstevel@tonic-gate #include "y.tab.h" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate Node *nodealloc(n) 34*0Sstevel@tonic-gate { 35*0Sstevel@tonic-gate register Node *x; 36*0Sstevel@tonic-gate x = (Node *) malloc(sizeof(Node) + (n-1)*sizeof(Node *)); 37*0Sstevel@tonic-gate if (x == NULL) 38*0Sstevel@tonic-gate ERROR "out of space in nodealloc" FATAL; 39*0Sstevel@tonic-gate x->nnext = NULL; 40*0Sstevel@tonic-gate x->lineno = lineno; 41*0Sstevel@tonic-gate return(x); 42*0Sstevel@tonic-gate } 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate Node *exptostat(a) Node *a; 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate a->ntype = NSTAT; 47*0Sstevel@tonic-gate return(a); 48*0Sstevel@tonic-gate } 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate Node *node1(a,b) Node *b; 51*0Sstevel@tonic-gate { 52*0Sstevel@tonic-gate register Node *x; 53*0Sstevel@tonic-gate x = nodealloc(1); 54*0Sstevel@tonic-gate x->nobj = a; 55*0Sstevel@tonic-gate x->narg[0]=b; 56*0Sstevel@tonic-gate return(x); 57*0Sstevel@tonic-gate } 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate Node *node2(a,b,c) Node *b, *c; 60*0Sstevel@tonic-gate { 61*0Sstevel@tonic-gate register Node *x; 62*0Sstevel@tonic-gate x = nodealloc(2); 63*0Sstevel@tonic-gate x->nobj = a; 64*0Sstevel@tonic-gate x->narg[0] = b; 65*0Sstevel@tonic-gate x->narg[1] = c; 66*0Sstevel@tonic-gate return(x); 67*0Sstevel@tonic-gate } 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate Node *node3(a,b,c,d) Node *b, *c, *d; 70*0Sstevel@tonic-gate { 71*0Sstevel@tonic-gate register Node *x; 72*0Sstevel@tonic-gate x = nodealloc(3); 73*0Sstevel@tonic-gate x->nobj = a; 74*0Sstevel@tonic-gate x->narg[0] = b; 75*0Sstevel@tonic-gate x->narg[1] = c; 76*0Sstevel@tonic-gate x->narg[2] = d; 77*0Sstevel@tonic-gate return(x); 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate Node *node4(a,b,c,d,e) Node *b, *c, *d, *e; 81*0Sstevel@tonic-gate { 82*0Sstevel@tonic-gate register Node *x; 83*0Sstevel@tonic-gate x = nodealloc(4); 84*0Sstevel@tonic-gate x->nobj = a; 85*0Sstevel@tonic-gate x->narg[0] = b; 86*0Sstevel@tonic-gate x->narg[1] = c; 87*0Sstevel@tonic-gate x->narg[2] = d; 88*0Sstevel@tonic-gate x->narg[3] = e; 89*0Sstevel@tonic-gate return(x); 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate Node *stat3(a,b,c,d) Node *b, *c, *d; 93*0Sstevel@tonic-gate { 94*0Sstevel@tonic-gate register Node *x; 95*0Sstevel@tonic-gate x = node3(a,b,c,d); 96*0Sstevel@tonic-gate x->ntype = NSTAT; 97*0Sstevel@tonic-gate return(x); 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate Node *op2(a,b,c) Node *b, *c; 101*0Sstevel@tonic-gate { 102*0Sstevel@tonic-gate register Node *x; 103*0Sstevel@tonic-gate x = node2(a,b,c); 104*0Sstevel@tonic-gate x->ntype = NEXPR; 105*0Sstevel@tonic-gate return(x); 106*0Sstevel@tonic-gate } 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate Node *op1(a,b) Node *b; 109*0Sstevel@tonic-gate { 110*0Sstevel@tonic-gate register Node *x; 111*0Sstevel@tonic-gate x = node1(a,b); 112*0Sstevel@tonic-gate x->ntype = NEXPR; 113*0Sstevel@tonic-gate return(x); 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate Node *stat1(a,b) Node *b; 117*0Sstevel@tonic-gate { 118*0Sstevel@tonic-gate register Node *x; 119*0Sstevel@tonic-gate x = node1(a,b); 120*0Sstevel@tonic-gate x->ntype = NSTAT; 121*0Sstevel@tonic-gate return(x); 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate Node *op3(a,b,c,d) Node *b, *c, *d; 125*0Sstevel@tonic-gate { 126*0Sstevel@tonic-gate register Node *x; 127*0Sstevel@tonic-gate x = node3(a,b,c,d); 128*0Sstevel@tonic-gate x->ntype = NEXPR; 129*0Sstevel@tonic-gate return(x); 130*0Sstevel@tonic-gate } 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate Node *op4(a,b,c,d,e) Node *b, *c, *d, *e; 133*0Sstevel@tonic-gate { 134*0Sstevel@tonic-gate register Node *x; 135*0Sstevel@tonic-gate x = node4(a,b,c,d,e); 136*0Sstevel@tonic-gate x->ntype = NEXPR; 137*0Sstevel@tonic-gate return(x); 138*0Sstevel@tonic-gate } 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate Node *stat2(a,b,c) Node *b, *c; 141*0Sstevel@tonic-gate { 142*0Sstevel@tonic-gate register Node *x; 143*0Sstevel@tonic-gate x = node2(a,b,c); 144*0Sstevel@tonic-gate x->ntype = NSTAT; 145*0Sstevel@tonic-gate return(x); 146*0Sstevel@tonic-gate } 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate Node *stat4(a,b,c,d,e) Node *b, *c, *d, *e; 149*0Sstevel@tonic-gate { 150*0Sstevel@tonic-gate register Node *x; 151*0Sstevel@tonic-gate x = node4(a,b,c,d,e); 152*0Sstevel@tonic-gate x->ntype = NSTAT; 153*0Sstevel@tonic-gate return(x); 154*0Sstevel@tonic-gate } 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate Node *valtonode(a, b) Cell *a; 157*0Sstevel@tonic-gate { 158*0Sstevel@tonic-gate register Node *x; 159*0Sstevel@tonic-gate 160*0Sstevel@tonic-gate a->ctype = OCELL; 161*0Sstevel@tonic-gate a->csub = b; 162*0Sstevel@tonic-gate x = node1(0, (Node *) a); 163*0Sstevel@tonic-gate x->ntype = NVALUE; 164*0Sstevel@tonic-gate return(x); 165*0Sstevel@tonic-gate } 166*0Sstevel@tonic-gate 167*0Sstevel@tonic-gate Node *rectonode() 168*0Sstevel@tonic-gate { 169*0Sstevel@tonic-gate /* return valtonode(lookup("$0", symtab), CFLD); */ 170*0Sstevel@tonic-gate return valtonode(recloc, CFLD); 171*0Sstevel@tonic-gate } 172*0Sstevel@tonic-gate 173*0Sstevel@tonic-gate Node *makearr(p) Node *p; 174*0Sstevel@tonic-gate { 175*0Sstevel@tonic-gate Cell *cp; 176*0Sstevel@tonic-gate 177*0Sstevel@tonic-gate if (isvalue(p)) { 178*0Sstevel@tonic-gate cp = (Cell *) (p->narg[0]); 179*0Sstevel@tonic-gate if (isfunc(cp)) 180*0Sstevel@tonic-gate ERROR "%s is a function, not an array", cp->nval SYNTAX; 181*0Sstevel@tonic-gate else if (!isarr(cp)) { 182*0Sstevel@tonic-gate xfree(cp->sval); 183*0Sstevel@tonic-gate cp->sval = (uchar *) makesymtab(NSYMTAB); 184*0Sstevel@tonic-gate cp->tval = ARR; 185*0Sstevel@tonic-gate } 186*0Sstevel@tonic-gate } 187*0Sstevel@tonic-gate return p; 188*0Sstevel@tonic-gate } 189*0Sstevel@tonic-gate 190*0Sstevel@tonic-gate Node *pa2stat(a,b,c) Node *a, *b, *c; 191*0Sstevel@tonic-gate { 192*0Sstevel@tonic-gate register Node *x; 193*0Sstevel@tonic-gate x = node4(PASTAT2, a, b, c, (Node *) paircnt); 194*0Sstevel@tonic-gate paircnt++; 195*0Sstevel@tonic-gate x->ntype = NSTAT; 196*0Sstevel@tonic-gate return(x); 197*0Sstevel@tonic-gate } 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate Node *linkum(a,b) Node *a, *b; 200*0Sstevel@tonic-gate { 201*0Sstevel@tonic-gate register Node *c; 202*0Sstevel@tonic-gate 203*0Sstevel@tonic-gate if (errorflag) /* don't link things that are wrong */ 204*0Sstevel@tonic-gate return a; 205*0Sstevel@tonic-gate if (a == NULL) return(b); 206*0Sstevel@tonic-gate else if (b == NULL) return(a); 207*0Sstevel@tonic-gate for (c = a; c->nnext != NULL; c = c->nnext) 208*0Sstevel@tonic-gate ; 209*0Sstevel@tonic-gate c->nnext = b; 210*0Sstevel@tonic-gate return(a); 211*0Sstevel@tonic-gate } 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate defn(v, vl, st) /* turn on FCN bit in definition */ 214*0Sstevel@tonic-gate Cell *v; 215*0Sstevel@tonic-gate Node *st, *vl; /* body of function, arglist */ 216*0Sstevel@tonic-gate { 217*0Sstevel@tonic-gate Node *p; 218*0Sstevel@tonic-gate int n; 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate if (isarr(v)) { 221*0Sstevel@tonic-gate ERROR "`%s' is an array name and a function name", v->nval SYNTAX; 222*0Sstevel@tonic-gate return; 223*0Sstevel@tonic-gate } 224*0Sstevel@tonic-gate v->tval = FCN; 225*0Sstevel@tonic-gate v->sval = (uchar *) st; 226*0Sstevel@tonic-gate n = 0; /* count arguments */ 227*0Sstevel@tonic-gate for (p = vl; p; p = p->nnext) 228*0Sstevel@tonic-gate n++; 229*0Sstevel@tonic-gate v->fval = n; 230*0Sstevel@tonic-gate dprintf( ("defining func %s (%d args)\n", v->nval, n) ); 231*0Sstevel@tonic-gate } 232*0Sstevel@tonic-gate 233*0Sstevel@tonic-gate isarg(s) /* is s in argument list for current function? */ 234*0Sstevel@tonic-gate uchar *s; 235*0Sstevel@tonic-gate { 236*0Sstevel@tonic-gate extern Node *arglist; 237*0Sstevel@tonic-gate Node *p = arglist; 238*0Sstevel@tonic-gate int n; 239*0Sstevel@tonic-gate 240*0Sstevel@tonic-gate for (n = 0; p != 0; p = p->nnext, n++) 241*0Sstevel@tonic-gate if (strcmp(((Cell *)(p->narg[0]))->nval, s) == 0) 242*0Sstevel@tonic-gate return n; 243*0Sstevel@tonic-gate return -1; 244*0Sstevel@tonic-gate } 245