internal override bool match(ATerm pattern, ArrayList list)
{
if (pattern.getType() == ATermType.LIST)
{
ATermList l = (ATermList)pattern;
if (l.isEmpty())
{
return(this.isEmpty());
}
if (l.getFirst().getType() == ATermType.PLACEHOLDER)
{
ATerm ph_type = ((ATermPlaceholder)l.getFirst()).getPlaceholder();
if (ph_type.getType() == ATermType.APPL)
{
ATermAppl appl = (ATermAppl)ph_type;
if (appl.getName().Equals("list") && appl.getArguments().isEmpty())
{
list.Add(this);
return(true);
}
}
}
if (!isEmpty())
{
ArrayList submatches = first.match(l.getFirst());
if (submatches == null)
{
return(false);
}
list.AddRange(submatches);
submatches = next.match(l.getNext());
if (submatches == null)
{
return(false);
}
list.AddRange(submatches);
return(true);
}
else
{
return(l.isEmpty());
}
}
return(base.match(pattern, list));
}
internal virtual bool matchArguments(ATerm[] pattern_args, ArrayList list)
{
for (int i = 0; i < args.Length; i++)
{
if (i >= pattern_args.Length)
{
return(false);
}
ATerm arg = args[i];
ATerm pattern_arg = pattern_args[i];
if (pattern_arg.getType() == ATermType.PLACEHOLDER)
{
ATerm ph_type = ((ATermPlaceholder)pattern_arg).getPlaceholder();
if (ph_type.getType() == ATermType.APPL)
{
ATermAppl appl = (ATermAppl)ph_type;
if (appl.getName().Equals("list") && appl.getArguments().isEmpty())
{
ATermList result = ((PureFactory)getFactory()).getEmpty();
for (int j = args.Length - 1; j >= i; j--)
{
result = result.insert(args[j]);
}
list.Add(result);
return(true);
}
}
}
ArrayList submatches = arg.match(pattern_arg);
if (submatches == null)
{
return(false);
}
list.AddRange(submatches);
}
return(args.Length == pattern_args.Length);
}