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- #include "awk.def"
- #include "awk.h"
- #include "stdio.h"
- node *ALLOC(n)
- { node *x;
- x = (node *)malloc(sizeof(node)+n*sizeof(node *));
- if (x == NULL)
- error(FATAL, "out of space in ALLOC");
- return(x);
- }
- node *exptostat(a) node *a;
- {
- a->ntype = NSTAT;
- return(a);
- }
- node *nullstat;
- node *node0(a)
- { node *x;
- x=ALLOC(0);
- x->nnext = NULL;
- x->nobj=a;
- return(x);
- }
- node *node1(a,b) node *b;
- { node *x;
- x=ALLOC(1);
- x->nnext = NULL;
- x->nobj=a;
- x->narg[0]=b;
- return(x);
- }
- node *node2(a,b,c) node *b, *c;
- { node *x;
- x = ALLOC(2);
- x->nnext = NULL;
- x->nobj = a;
- x->narg[0] = b;
- x->narg[1] = c;
- return(x);
- }
- node *node3(a,b,c,d) node *b, *c, *d;
- { node *x;
- x = ALLOC(3);
- x->nnext = NULL;
- x->nobj = a;
- x->narg[0] = b;
- x->narg[1] = c;
- x->narg[2] = d;
- return(x);
- }
- node *node4(a,b,c,d,e) node *b, *c, *d, *e;
- { node *x;
- x = ALLOC(4);
- x->nnext = NULL;
- x->nobj = a;
- x->narg[0] = b;
- x->narg[1] = c;
- x->narg[2] = d;
- x->narg[3] = e;
- return(x);
- }
- node *stat3(a,b,c,d) node *b, *c, *d;
- { node *x;
- x = node3(a,b,c,d);
- x->ntype = NSTAT;
- return(x);
- }
- node *op2(a,b,c) node *b, *c;
- { node *x;
- x = node2(a,b,c);
- x->ntype = NEXPR;
- return(x);
- }
- node *op1(a,b) node *b;
- { node *x;
- x = node1(a,b);
- x->ntype = NEXPR;
- return(x);
- }
- node *stat1(a,b) node *b;
- { node *x;
- x = node1(a,b);
- x->ntype = NSTAT;
- return(x);
- }
- node *op3(a,b,c,d) node *b, *c, *d;
- { node *x;
- x = node3(a,b,c,d);
- x->ntype = NEXPR;
- return(x);
- }
- node *stat2(a,b,c) node *b, *c;
- { node *x;
- x = node2(a,b,c);
- x->ntype = NSTAT;
- return(x);
- }
- node *stat4(a,b,c,d,e) node *b, *c, *d, *e;
- { node *x;
- x = node4(a,b,c,d,e);
- x->ntype = NSTAT;
- return(x);
- }
- node *valtonode(a, b) cell *a;
- { node *x;
- x = node0(a);
- x->ntype = NVALUE;
- x->subtype = b;
- return(x);
- }
- node *genjump(a)
- { node *x;
- x = node0(a);
- x->ntype = NSTAT;
- return(x);
- }
- node *pa2stat(a,b,c) node *a, *b, *c;
- { node *x;
- x = node3(paircnt++, a, b, c);
- x->ntype = NPA2;
- return(x);
- }
- node *linkum(a,b) node *a, *b;
- { node *c;
- if(a == NULL) return(b);
- else if(b == NULL) return(a);
- for(c=a; c->nnext != NULL; c=c->nnext);
- c->nnext = b;
- return(a);
- }
- node *genprint()
- { node *x;
- x = stat2(PRINT,valtonode(lookup("$record", symtab), CFLD), nullstat);
- return(x);
- }
-