def _nt_quoted_string
start_index = index
if node_cache[:quoted_string].has_key?(index)
cached = node_cache[:quoted_string][index]
if cached
node_cache[:quoted_string][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
@index = cached.interval.end
end
return cached
end
i0, s0 = index, []
i1 = index
r2 = _nt_single_quoted_string
if r2
r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
r1 = r2
else
r3 = _nt_double_quoted_string
if r3
r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
r1 = r3
else
@index = i1
r1 = nil
end
end
s0 << r1
if r1
s4, i4 = [], index
loop do
if has_terminal?(@regexps[gr = '\A[ir]'] ||= Regexp.new(gr), :regexp, index)
r5 = true
@index += 1
else
terminal_parse_failure('[ir]')
r5 = nil
end
if r5
s4 << r5
else
break
end
end
r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
s0 << r4
end
if s0.last
r0 = instantiate_node(Terminal,input, i0...index, s0)
r0.extend(QuotedString0)
r0.extend(QuotedString1)
else
@index = i0
r0 = nil
end
node_cache[:quoted_string][start_index] = r0
r0
end