Method: PersonifyLanguage#_nt_block

Defined in:

lib/personify/parser/personify.rb

#_nt_block ⇒ Object

# File 'lib/personify/parser/personify.rb', line 226

def _nt_block
  start_index = index
  if node_cache[:block].has_key?(index)
    cached = node_cache[:block][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?('DO', false, index)
    r1 = instantiate_node(SyntaxNode,input, index...(index + 2))
    @index += 2
  else
    terminal_parse_failure('DO')
    r1 = nil
  end
  s0 << r1
  if r1
    r2 = _nt_space
    s0 << r2
    if r2
      if has_terminal?(']', false, index)
        r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure(']')
        r3 = nil
      end
      s0 << r3
      if r3
        r4 = _nt_block_content
        s0 << r4
        if r4
          if has_terminal?('[', false, index)
            r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure('[')
            r5 = nil
          end
          s0 << r5
          if r5
            r6 = _nt_space
            s0 << r6
            if r6
              if has_terminal?('END', false, index)
                r7 = instantiate_node(SyntaxNode,input, index...(index + 3))
                @index += 3
              else
                terminal_parse_failure('END')
                r7 = nil
              end
              s0 << r7
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(Block,input, i0...index, s0)
    r0.extend(Block0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:block][start_index] = r0

  r0
end