def _nt_obs_zone
start_index = index
if node_cache[:obs_zone].has_key?(index)
cached = node_cache[:obs_zone][index]
@index = cached.interval.end if cached
return cached
end
i0 = index
if has_terminal?("UT", false, index)
r1 = instantiate_node(SyntaxNode,input, index...(index + 2))
@index += 2
else
terminal_parse_failure("UT")
r1 = nil
end
if r1
r0 = r1
else
if has_terminal?("GMT", false, index)
r2 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("GMT")
r2 = nil
end
if r2
r0 = r2
else
if has_terminal?("EST", false, index)
r3 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("EST")
r3 = nil
end
if r3
r0 = r3
else
if has_terminal?("EDT", false, index)
r4 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("EDT")
r4 = nil
end
if r4
r0 = r4
else
if has_terminal?("CST", false, index)
r5 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("CST")
r5 = nil
end
if r5
r0 = r5
else
if has_terminal?("CDT", false, index)
r6 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("CDT")
r6 = nil
end
if r6
r0 = r6
else
if has_terminal?("MST", false, index)
r7 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("MST")
r7 = nil
end
if r7
r0 = r7
else
if has_terminal?("MDT", false, index)
r8 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("MDT")
r8 = nil
end
if r8
r0 = r8
else
if has_terminal?("PST", false, index)
r9 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("PST")
r9 = nil
end
if r9
r0 = r9
else
if has_terminal?("PDT", false, index)
r10 = instantiate_node(SyntaxNode,input, index...(index + 3))
@index += 3
else
terminal_parse_failure("PDT")
r10 = nil
end
if r10
r0 = r10
else
if has_terminal?('\G[\\x41-\\x49]', true, index)
r11 = true
@index += 1
else
r11 = nil
end
if r11
r0 = r11
else
if has_terminal?('\G[\\x4B-\\x5A]', true, index)
r12 = true
@index += 1
else
r12 = nil
end
if r12
r0 = r12
else
if has_terminal?('\G[\\x61-\\x69]', true, index)
r13 = true
@index += 1
else
r13 = nil
end
if r13
r0 = r13
else
if has_terminal?('\G[\\x6B-\\x7A]', true, index)
r14 = true
@index += 1
else
r14 = nil
end
if r14
r0 = r14
else
@index = i0
r0 = nil
end
end
end
end
end
end
end
end
end
end
end
end
end
end
node_cache[:obs_zone][start_index] = r0
r0
end