Method: CEML::Lexer#_nt_comment

Defined in:
lib/ceml/lang/tt/lexer.rb

#_nt_comment ⇒ Object 



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# File 'lib/ceml/lang/tt/lexer.rb', line 295

def _nt_comment
  start_index = index
  if node_cache[:comment].has_key?(index)
    cached = node_cache[:comment][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?('//', false, index)
    r1 = instantiate_node(SyntaxNode,input, index...(index + 2))
    @index += 2
  else
    terminal_parse_failure('//')
    r1 = nil
  end
  s0 << r1
  if r1
    r2 = _nt_text
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(Comment0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:comment][start_index] = r0

  r0
end