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madagascar/asyntax.c

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/* 2012 (C) Jussi Rintanen */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "asyntax.h"
#include "tables.h"
#include "intsets.h"
#include "ordintsets.h"
#include "operators.h"
#include "main.h"
#define noDEBUG 1
#include "parser.tab.h"
//void printlitarr(int *ptr) {
// if(*ptr == -1) { printf("NOTHING TO PRINT"); }
// while(*ptr != -1) {
// if((*ptr)&1) printf("NOT "); else printf(".");
// printatomi((*ptr) >> 1);
// ptr ++;
// }
// printf("\n");
//}
/* DESTRUCTIVE negation of a formula */
Sfma *Sneg(Sfma *f) {
Sfmalist *l;
switch(f->t) {
case STRUE: f->t = SFALSE; break;
case SFALSE: f->t = STRUE; break;
case Spatom: f->t = Snatom; break;
case Snatom: f->t = Spatom; break;
case Sconj:
f->t = Sdisj;
l = f->juncts;
while(l != NULL) {
Sneg(l->hd);
l = l->tl;
}
break;
case Sdisj:
f->t = Sconj;
l = f->juncts;
while(l != NULL) {
Sneg(l->hd);
l = l->tl;
}
break;
case Sforall: f->t = Sforsome; Sneg(f->f); break;
case Sforsome: f->t = Sforall; Sneg(f->f); break;
case Seq: f->t = Sneq; break;
case Sneq: f->t = Seq; break;
}
return f;
}
/* constructors for schematic formulae */
Sfma* Sdisjunction(Sfmalist *fs) {
Sfma *f = (Sfma*)statmalloc(20,sizeof(Sfma));
f->t = Sdisj;
f->juncts = fs;
return f;
}
Sfma* Sconjunction(Sfmalist *fs) {
Sfma *f = (Sfma*)statmalloc(21,sizeof(Sfma));
f->t = Sconj;
f->juncts = fs;
return f;
}
Sfma* Satom(atom a) {
Sfma *f = (Sfma*)statmalloc(22,sizeof(Sfma));
f->t = Spatom;
f->a = a;
return f;
}
Sfma* Sfalse() {
Sfma *f = (Sfma*)statmalloc(23,sizeof(Sfma));
f->t = SFALSE;
return f;
}
Sfma* Strue() {
Sfma *f = (Sfma*)statmalloc(24,sizeof(Sfma));
f->t = STRUE;
return f;
}
Sfma* Sfmaforall(typedvarlist *ss, Sfma *f) {
Sfma *f1 = (Sfma*)statmalloc(25,sizeof(Sfma));
f1->t = Sforall;
f1->ss = ss;
f1->f = f;
return f1;
}
Sfma* SconstantTRUE() {
Sfma *f = (Sfma*)statmalloc(26,sizeof(Sfma));
f->t = STRUE;
return f;
}
Sfma* Sfmaforsome(typedvarlist *ss, Sfma *f) {
Sfma *f1 = (Sfma*)statmalloc(27,sizeof(Sfma));
f1->t = Sforsome;
f1->ss = ss;
f1->f = f;
return f1;
}
Sfma* SfmaEQ(int p1, int p2) {
Sfma *f1 = (Sfma*)statmalloc(28,sizeof(Sfma));
f1->t = Seq;
f1->p1 = p1;
f1->p2 = p2;
return f1;
}
/******* Accessors ********/
Sfmatype Sfmatypeof(Sfma *f) {
return f->t;
}
//atom *makeatom(int pr,intlist *pars) {
// atom a = (atom)statmalloc(29,sizeof(atom));
// a->pred = pr;
// a->params = pars;
// return a;
//}
/* Printing */
void printSfmalist(Sfmalist *);
void printSefflist(Sefflist *);
void printatom(atom a) {
int n,i;
printf("%s(",symbol(a[0]));
n = a[1];
for(i=2;i<n+2;i++) {
if(a[i] < 0) printf("#%i",-1-(a[i]));
else printf("%s",symbol(a[i]));
if(i<n+1) printf(",");
}
printf(")");
}
void printtypedvars(typedvarlist *ss) {
printf(" (");
while(ss != NULL) {
printf("%s:%s",symbol(ss->v),symbol(ss->t));
if(ss->tl != NULL) printf(" ");
ss = ss->tl;
}
printf(")");
}
void printSfma(Sfma *f) {
switch(Sfmatypeof(f)) {
case STRUE: printf("TRUE"); break;
case SFALSE: printf("FALSE"); break;
case Seq: printf(" (= %s %s)",symbol(f->p1),symbol(f->p2)); break;
case Sneq: printf(" (not (= %s %s))",symbol(f->p1),symbol(f->p2)); break;
case Spatom: printatom(f->a); break;
case Snatom: printf("(not "); printatom(f->a); printf(")"); break;
case Sdisj: printf("(or "); printSfmalist(f->juncts); printf(")"); break;
case Sconj: printf("(and "); printSfmalist(f->juncts); printf(")"); break;
case Sforall: printf("(forall "); printtypedvars(f->ss); printSfma(f->f); printf(")"); break;
case Sforsome: printf("(exists "); printtypedvars(f->ss); printSfma(f->f); printf(")"); break;
}
}
void printSfmalist(Sfmalist *fs) {
while(fs != NULL) {
printSfma(fs->hd);
printf(" ");
fs = fs->tl;
}
}
void printSeff(Seff *);
void printSefflist(Sefflist *fs) {
while(fs != NULL) {
printSeff(fs->hd);
printf(" ");
fs = fs->tl;
}
}
void printSeff(Seff *e) {
switch(e->t) {
case SEpatom: printatom(e->a); break;
case SEnatom: printf("(not "); printatom(e->a); printf(")"); break;
case SEconj: printf("(and "); printSefflist(e->juncts); printf(")"); break;
case SEforall: printf("(forall "); printtypedvars(e->ss); printSeff(e->effect); printf(")"); break;
case SEwhen:
printf("(when ");
printSfma(e->cond);
printf(" ");
printSeff(e->effect);
printf(")");
break;
}
}
void printSaction(Saction *a) {
typedvarlist *l;
printf(":action %s(",symbol(a->name));
l = a->params;
while(l != NULL) {
printf("%s",symbol(l->v));
if(l->t) printf(":%s",symbol(l->t));
else printf(":UNIV");
if(l->tl != NULL) printf(" ");
l = l->tl;
}
printf(") (COST %i)\n",a->cost);
printSfma(a->precon);
printf("\n");
printSeff(a->effect);
printf("\n\n");
}
/* constructors for schematic effects */
Seff* SPeffatom(atom a) {
Seff *e = (Seff *)statmalloc(30,sizeof(Seff));
e->t = SEpatom;
e->a = a;
return e;
}
Seff* SNeffatom(atom a) {
Seff *e = (Seff *)statmalloc(31,sizeof(Seff));
e->t = SEnatom;
e->a = a;
return e;
}
Seff* Seffconjunction(Sefflist *efs) {
Seff *e = (Seff *)statmalloc(32,sizeof(Seff));
e->t = SEconj;
e->juncts = efs;
return e;
}
Seff* Seffwhen(Sfma *c,Seff *e) {
Seff *e1 = (Seff *)statmalloc(33,sizeof(Seff));
e1->t = SEwhen;
e1->cond = c;
e1->effect = e;
return e1;
}
Seff* Seffforall(typedvarlist *p,Seff *e) {
Seff *e1 = (Seff *)statmalloc(34,sizeof(Seff));
e1->t = SEforall;
e1->ss = p;
e1->effect = e;
return e1;
}
int listlen(intlist *l) {
int len = 0;
while(l != NULL) {
len = len+1;
l = l->tl;
}
return len;
}
/* Create atom */
atom newatom(int s,intlist *p) {
int len,i;
int *a;
len = listlen(p);
a = (atom)statmalloc(35,sizeof(int) * (len+2));
a[0] = s;
a[1] = len;
i = 2;
while(p != NULL) {
a[i++] = p->hd;
p = p->tl;
}
return a;
}
/* PDDL domain definitions */
int nOfTypes;
#define MAXOBTYPES 1000
obtype Stypes[MAXOBTYPES];
int *AStypes[MAXOBTYPES];
int *AStypesCARD[MAXOBTYPES];
#define MAXSCHEMATICACTIONS 10000
Sfma *Sgoal;
void initPDDL() {
nOfSActions = 0;
maxSActions = MAXSCHEMATICACTIONS;
Sactions = (Saction *)statmalloc(36,sizeof(Saction) * maxSActions);
nOfTypes = 0;
Sgoal = (Sfma *)0;
Sactions[0].precon = NULL;
Sactions[0].effect = NULL;
Sactions[0].params = NULL;
Sactions[0].cost = 0.0;
}
/* Definitions */
/* Typed var lists */
typedvarlist *TVappend(typedvarlist *l1,typedvarlist *l2) {
if(l1 == NULL) {
return l2;
} else {
typedvarlist *l3 = TVappend(l1->tl,l2);
typedvarlist *l4 = (typedvarlist *)statmalloc(37,sizeof(typedvarlist));
l4->v = l1->v;
l4->t = l1->t;
l4->tl = l3;
return l4;
}
}
/* For a (possibly untyped) list of variables, assign a type */
typedvarlist *withtype(int t,intlist *ss) {
typedvarlist *l;
if(ss == NULL) return NULL;
l = (typedvarlist *)statmalloc(38,sizeof(typedvarlist));
l->v = ss->hd;
l->t = t;
l->tl = withtype(t,ss->tl);
return l;
}
/* Add a new action */
void checkSactionsSize() {
if(nOfSActions >= maxSActions-1) {
maxSActions = maxSActions * 2;
Sactions = (Saction *)realloc(Sactions,maxSActions * sizeof(Saction));
assert(Sactions != NULL);
}
}
void addnewaction(int name) {
nOfSActions += 1;
checkSactionsSize();
Sactions[nOfSActions-1].name = name;
if(Sactions[nOfSActions-1].effect == NULL) {
fprintf(stderr,"ERROR: action has not effect.\n");
exit(1);
}
if(Sactions[nOfSActions-1].precon == NULL) {
Sactions[nOfSActions-1].precon = SconstantTRUE();
}
/* Next action */
Sactions[nOfSActions].precon = NULL;
Sactions[nOfSActions].effect = NULL;
Sactions[nOfSActions].params = NULL;
Sactions[nOfSActions].cost = 0.0;
}
/* The following three are called by the parser BEFORE addnewaction */
void addactionparameters(typedvarlist *params) {
Sactions[nOfSActions].params = params;
}
void addactionprecond(Sfma *p) {
Sactions[nOfSActions].precon = p;
}
void addactioncost(int cost) {
// printf("Action cost %i.\n",cost);
Sactions[nOfSActions].cost = cost;
}
/* Go through the predicates in an action effect and mark non-static ones. */
void checkifstatic(Seff *e) {
atom a;
Sefflist *es;
switch(e->t) {
case SEpatom:
case SEnatom:
a = e->a;
setnonstatic(a[0]);
break;
case SEconj:
es = e->juncts;
while(es != NULL) {
checkifstatic(es->hd);
es = es->tl;
}
break;
case SEwhen:
case SEforall:
checkifstatic(e->effect); break;
default:
break;
}
}
void addactioneffect(Seff *e) {
Sactions[nOfSActions].effect = e;
checkifstatic(e);
}
/* Requirements */
void checkrequirements(intlist *l) {
while(l != NULL) {
if(strcmp(symbol(l->hd),":strips") == 0) {
} else if(strcmp(symbol(l->hd),":conditional-effects") == 0) {
} else if(strcmp(symbol(l->hd),":adl") == 0) {
} else if(strcmp(symbol(l->hd),":typing") == 0) {
} else if(strcmp(symbol(l->hd),":equality") == 0) {
} else if(strcmp(symbol(l->hd),":typing") == 0) {
} else if(strcmp(symbol(l->hd),":conditional-effects") == 0) {
} else if(strcmp(symbol(l->hd),":negative-preconditions") == 0) {
} else if(strcmp(symbol(l->hd),":quantified-preconditions") == 0) {
} else if(strcmp(symbol(l->hd),":action-costs") == 0) {
} else {
fprintf(stderr,"WARNING: unsupported :requirement %s\n",symbol(l->hd));
}
if(strcmp(symbol(l->hd),":action-costs") == 0) {
fprintf(stderr,"WARNING: will ignore action costs\n");
}
l = l->tl;
}
}
/* Handling types and objects */
int member(int i,intlist *l) {
while(l != NULL) {
if(l->hd == i) return 1;
l = l->tl;
}
return 0;
}
/* Destructive addition of a non-duplicate element to a NON-EMPTY list */
intlist *addtolist(int s,intlist *l) {
if(member(s,l)) return l;
return intcons(s,l);
}
void addobject(int v,int t) {
int i;
i = 0;
while(i<nOfTypes) {
if(t == Stypes[i].typename) { /* Add to type */
Stypes[i].elements = addtolist(v,Stypes[i].elements);
return;
}
i+=1;
}
nOfTypes += 1;
Stypes[nOfTypes-1].typename = t;
Stypes[nOfTypes-1].elements = intcons(v,EMPTYLIST);
Stypes[nOfTypes-1].subtypes = EMPTYLIST;
Stypes[nOfTypes-1].supertypes = EMPTYLIST;
assert(nOfTypes < MAXOBTYPES);
}
/* Predicate definition */
void storepredicates() {
/* We don't use the predicate definition for anything. */
/* It could be used for some form of type-checking. */
}
/* Constant definitions */
void storeconstants(typedvarlist *cs) { /* Note: Same as 'storeobjects'. */
while(cs != NULL) {
addobject(cs->v,UNIVTYPE);
addobject(cs->v,cs->t);
cs = cs->tl;
}
}
/* Type definitions */
void addsubtype(int t1,int t2) {
int i;
i = 0;
while(i<nOfTypes) {
if(Stypes[i].typename == t2) {
Stypes[i].subtypes = addtolist(t1,Stypes[i].subtypes);
return;
}
i = i + 1;
}
nOfTypes += 1;
Stypes[i].typename = t2;
Stypes[i].supertypes = EMPTYLIST;
Stypes[i].elements = EMPTYLIST;
Stypes[i].subtypes = intcons(t1,EMPTYLIST);
}
void addsupertype(int t1,int t2) {
int i;
i = 0;
while(i<nOfTypes) {
if(Stypes[i].typename == t1) {
Stypes[i].supertypes = addtolist(t2,Stypes[i].supertypes);
return;
}
i = i + 1;
}
nOfTypes += 1;
Stypes[i].typename = t1;
Stypes[i].supertypes = intcons(t2,EMPTYLIST);
Stypes[i].subtypes = EMPTYLIST;
Stypes[i].elements = EMPTYLIST;
}
void extendsubtyperelation(int t1,int t2) {
addsubtype(t1,t2);
addsupertype(t1,t2);
}
void storetypes(typedvarlist *ts) {
while(ts != NULL) {
extendsubtyperelation(ts->v,ts->t);
ts = ts->tl;
}
}
void processtypes() {
int i;
intlist *il,*il2;
/* Extend subtypes and supertypes to non-immediate ones. */
for(i=0;i<nOfTypes;i++) {
il = Stypes[i].subtypes;
while(il != NULL) {
il2 = Stypes[i].supertypes;
while(il2 != NULL) {
addsubtype(il->hd,il2->hd);
addsupertype(il->hd,il2->hd);
il2 = il2->tl;
}
il = il->tl;
}
}
if(flagShowInput) {
for(i=0;i<nOfTypes;i++) {
printf("TYPE %s:\n",symbol(Stypes[i].typename));
printf(" ELEMENTS:");
il = Stypes[i].elements;
while(il != NULL) {
printf(" %s",symbol(il->hd));
il = il->tl;
}
printf("\n");
printf(" SUBTYPES:");
il = Stypes[i].subtypes;
while(il != NULL) {
printf(" %s",symbol(il->hd));
il = il->tl;
}
printf("\n");
printf(" SUPERTYPES:");
il = Stypes[i].supertypes;
while(il != NULL) {
printf(" %s",symbol(il->hd));
il = il->tl;
}
printf("\n");
}
}
/* Add objects of a type to all its supertypes. */
for(i=0;i<nOfTypes;i++) {
il = Stypes[i].elements;
while(il != NULL) {
il2 = Stypes[i].supertypes;
while(il2 != NULL) {
addobject(il->hd,il2->hd);
il2 = il2->tl;
}
il = il->tl;
}
}
}
/* PDDL problem definitions */
/* Add objects to a type. */
void storeobjects(typedvarlist *cs) {
while(cs != NULL) {
addobject(cs->v,UNIVTYPE);
addobject(cs->v,cs->t);
cs = cs->tl;
}
}
void storeinit(atomlist *a) {
int cnt,i;
cnt = listlen(a);
Sinit = (atom *)malloc((cnt+1) * sizeof(atom));
for(i=0;i<cnt;i++) {
Sinit[i] = a->hd;
a = a->tl;
}
Sinit[cnt] = NULL;
}
void storegoal(Sfma *f) {
Sgoal = f;
}
/* Domain name */
int domain,problem;
void storedomain(int s) { domain = s; }
void checkdomain(int s) {
if(s != domain) {
fprintf(stderr,"WARNING: problem domain '%s' does not match domain name '%s'\n",symbol(s),symbol(domain));
}
}
char *domainname() { return symbol(domain); }
void addproblem(int s) { problem = s; }
char *problemname() { return symbol(problem); }
/* Lists */
Sfmalist *Sfmacons(Sfma *h,Sfmalist *t) {
Sfmalist *r = (Sfmalist *)statmalloc(39,sizeof(Sfmalist));
r->hd = h;
r->tl = t;
return r;
}
Sefflist *Seffcons(Seff *h,Sefflist *t) {
Sefflist *r = (Sefflist *)statmalloc(40,sizeof(Sefflist));
r->hd = h;
r->tl = t;
return r;
}
intlist *intcons(int h,intlist *t) {
intlist *r = (intlist *)statmalloc(41,sizeof(intlist));
r->hd = h;
r->tl = t;
return r;
}
ptrlist *ptrcons(int *h,ptrlist *t) {
ptrlist *r = (ptrlist *)statmalloc(42,sizeof(ptrlist));
r->hd = h;
r->tl = t;
return r;
}
atomlist *atomcons(atom h,atomlist *t) {
atomlist *r = (atomlist *)statmalloc(43,sizeof(atomlist));
r->hd = h;
r->tl = t;
return r;
}
/* Reading and processing an input file */
void showstatistics() {
int i;
printf("%3i action schemata\n",nOfSActions);
for(i=0;i<nOfSActions;i++) {
printSaction(&(Sactions[i]));
}
printf("%3i types\n",nOfTypes);
for(i=0;i<nOfTypes;i++) {
intlist *ss;
printf("%s consists of",symbol(Stypes[i].typename));
ss = Stypes[i].elements;
while(ss != NULL) {
printf(" %s",symbol(ss->hd));
ss = ss->tl;
}
printf("\n");
}
}
/* Turn object lists Stypes to object arrays AStypes. */
void constructtypearrays() {
int i,*ptr,cnt;
intlist *l;
for(i=0;i<nOfTypes;i++) {
cnt = listlen(Stypes[i].elements);
AStypesCARD[i] = cnt;
AStypes[i] = (int *)malloc((1+cnt) * sizeof(int));
l = Stypes[i].elements;
// printf("%s has elements ",symbol(Stypes[i].typename));
ptr = AStypes[i];
while(l != NULL) {
*ptr = l->hd;
// printf(" %s",symbol(*ptr));
l = l->tl;
ptr = ptr + 1;
}
// printf("\n");
*ptr = -1;
}
}
void readfile() {
linenumber = 1;
if(nOfInputFiles == 0) {
printf("Reading from standard input\n");
lexeropenstdin();
} else {
lexeropen(inputfiles[0]);
}
errorstring = "";
initPDDL();
initsymboltable();
UNIVTYPE = symbolindex("***UNIVTYPE***");
yyparse();
processtypes();
constructtypearrays();
if(flagShowInput) showstatistics();
}
void yyerror( char *s) {
printf("%s; %s on line %i.\n",s,errorstring,linenumber);
exit(1);
}
/*******************************************************************/
/********************* Bindings and domains ************************/
/*******************************************************************/
/* elements associated with a type */
int *getdomain(int type) {
int j;
for(j=0;j<nOfTypes;j++) {
if(Stypes[j].typename == type) return AStypes[j];
}
fprintf(stderr,"WARNING: type %s not defined\n",symbol(type));
exit(1);
return NULL;
}
int getdomainsize(int type) {
int j;
for(j=0;j<nOfTypes;j++) {
if(Stypes[j].typename == type) return AStypesCARD[j];
}
fprintf(stderr,"WARNING: type %s not defined\n",symbol(type));
exit(1);
return 0;
}
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