llvm-6502/support/tools/Burg/nonterminal.c

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char rcsid_nonterminal[] = "$Id$";
#include "b.h"
#include <stdio.h>
#include <string.h>
NonTerminal start;
NonTerminalNum max_nonterminal = 1;
NonTerminalNum last_user_nonterminal;
List nonterminals;
NonTerminal
newNonTerminal(name) char *name;
{
NonTerminal nt;
nt = (NonTerminal) zalloc(sizeof(struct nonterminal));
assert(nt);
if (max_nonterminal == 1) {
start = nt;
}
nt->name = name;
nt->num = max_nonterminal++;
nonterminals = newList(nt, nonterminals);
return nt;
}
int
nonTerminalName(buf, i) char *buf; int i;
{
List l;
for (l = nonterminals; l; l = l->next) {
NonTerminal nt = (NonTerminal) l->x;
if (nt->num == i) {
strcpy(buf, nt->name);
return 1;
}
}
strcpy(buf, "(Unknown NonTerminal)");
return 0;
}
void
dumpNonTerminal(n) NonTerminal n;
{
printf("%s(%d)", n->name, n->num);
}