void FreeAttrList (Collection* C)
/* Free a list of attributes */
{
unsigned I;
/* Walk over the collection and free all attributes */
for (I = 0; I < CollCount (C); ++I) {
FreeAttr (CollAtUnchecked (C, I));
}
/* Free the collection itself */
FreeCollection (C);
}
/* build a canonical LR(1) parse table */
int BuildLRParser(GRAMMAR_TABLE grammar,
LR_TABLE* parser)
{
FindNullableNonterminals(&grammar);
BuildFirstSets(&grammar);
BuildFollowSets(&grammar);
// building the collection of item sets for an LR(1) grammar
LR_ITEM_COLLECTION* C = CanonicalCollection(&grammar);
//PrintCollection(C, &grammar);
RemoveEpsilons(&grammar);
*parser = ConstructTable(C, &grammar);
FreeCollection(C);
return 0;
}
