def _nt_step
start_index = index
if node_cache[:step].has_key?(index)
cached = node_cache[:step][index]
@index = cached.interval.end if cached
return cached
end
i0, s0 = index, []
r1 = _nt_comment
s0 << r1
if r1
s2, i2 = [], index
loop do
r3 = _nt_space
if r3
s2 << r3
else
break
end
end
r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
s0 << r2
if r2
r4 = _nt_step_keyword
s0 << r4
if r4
r5 = _nt_keyword_space
s0 << r5
if r5
r6 = _nt_line_to_eol
s0 << r6
if r6
i7 = index
s8, i8 = [], index
loop do
r9 = _nt_eol
if r9
s8 << r9
else
break
end
end
if s8.empty?
@index = i8
r8 = nil
else
r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
end
if r8
r7 = r8
else
r10 = _nt_eof
if r10
r7 = r10
else
@index = i7
r7 = nil
end
end
s0 << r7
if r7
r12 = _nt_multiline_arg
if r12
r11 = r12
else
r11 = instantiate_node(SyntaxNode,input, index...index)
end
s0 << r11
if r11
r13 = _nt_white
s0 << r13
end
end
end
end
end
end
end
if s0.last
r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
r0.extend(Step0)
r0.extend(Step1)
else
@index = i0
r0 = nil
end
node_cache[:step][start_index] = r0
r0
end