def _nt_single_quoted_string
start_index = index
if node_cache[:single_quoted_string].has_key?(index)
cached = node_cache[:single_quoted_string][index]
@index = cached.interval.end if cached
return cached
end
i0, s0 = index, []
if input.index("'", index) == index
r1 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure("'")
r1 = nil
end
s0 << r1
if r1
s2, i2 = [], index
loop do
i3, s3 = index, []
i4 = index
if input.index("'", index) == index
r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure("'")
r5 = nil
end
if r5
r4 = nil
else
self.index = i4
r4 = instantiate_node(SyntaxNode,input, index...index)
end
s3 << r4
if r4
i6 = index
if input.index("\\\\", index) == index
r7 = instantiate_node(SyntaxNode,input, index...(index + 2))
@index += 2
else
terminal_parse_failure("\\\\")
r7 = nil
end
if r7
r6 = r7
else
if input.index("\\'", index) == index
r8 = instantiate_node(SyntaxNode,input, index...(index + 2))
@index += 2
else
terminal_parse_failure("\\'")
r8 = nil
end
if r8
r6 = r8
else
if index < input_length
r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure("any character")
r9 = nil
end
if r9
r6 = r9
else
self.index = i6
r6 = nil
end
end
end
s3 << r6
end
if s3.last
r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
r3.extend(SingleQuotedString0)
else
self.index = i3
r3 = nil
end
if r3
s2 << r3
else
break
end
end
r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
s0 << r2
if r2
if input.index("'", index) == index
r10 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure("'")
r10 = nil
end
s0 << r10
end
end
if s0.last
r0 = instantiate_node(Terminal,input, i0...index, s0)
r0.extend(SingleQuotedString1)
else
self.index = i0
r0 = nil
end
node_cache[:single_quoted_string][start_index] = r0
return r0
end