def _nt_custom_x_token
start_index = index
if node_cache[:custom_x_token].has_key?(index)
cached = node_cache[:custom_x_token][index]
if cached
cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
@index = cached.interval.end
end
return cached
end
i0, s0 = index, []
if has_terminal?('\G[xX]', true, index)
r1 = true
@index += 1
else
r1 = nil
end
s0 << r1
if r1
if has_terminal?("-", false, index)
r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure("-")
r2 = nil
end
s0 << r2
if r2
s3, i3 = [], index
loop do
r4 = _nt_token
if r4
s3 << r4
else
break
end
end
if s3.empty?
@index = i3
r3 = nil
else
r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
end
s0 << r3
end
end
if s0.last
r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
r0.extend(CustomXToken0)
else
@index = i0
r0 = nil
end
node_cache[:custom_x_token][start_index] = r0
r0
end