def _nt_parameter
start_index = index
if node_cache[:parameter].has_key?(index)
cached = node_cache[:parameter][index]
if cached
cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
@index = cached.interval.end
end
return cached
end
i0, s0 = index, []
r2 = _nt_CFWS
if r2
r1 = r2
else
r1 = instantiate_node(SyntaxNode,input, index...index)
end
s0 << r1
if r1
r3 = _nt_attribute
s0 << r3
if r3
if has_terminal?("=", false, index)
r4 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure("=")
r4 = nil
end
s0 << r4
if r4
r5 = _nt_value
s0 << r5
if r5
r7 = _nt_CFWS
if r7
r6 = r7
else
r6 = instantiate_node(SyntaxNode,input, index...index)
end
s0 << r6
end
end
end
end
if s0.last
r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
r0.extend(Parameter0)
r0.extend(Parameter1)
else
@index = i0
r0 = nil
end
node_cache[:parameter][start_index] = r0
r0
end