Module: Brevity::DuplicateModifier

Includes:
PositiveInteger, Treetop::Runtime
Included in:
DuplicateModifierParser, Modifier
Defined in:
lib/brevity/parsing/modifiers/duplicate_modifier.rb

Defined Under Namespace

Modules: DuplicateModifier0

Instance Method Summary collapse

Methods included from PositiveInteger

#_nt_positive_integer

Methods included from NonnegativeInteger

#_nt_nonnegative_integer

Instance Method Details

#_nt_duplicate_modifier ⇒ Object 



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# File 'lib/brevity/parsing/modifiers/duplicate_modifier.rb', line 21

def _nt_duplicate_modifier
  start_index = index
  if node_cache[:duplicate_modifier].has_key?(index)
    cached = node_cache[:duplicate_modifier][index]
    if cached
      node_cache[:duplicate_modifier][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if (match_len = has_terminal?(":", false, index))
    r1 = true
    @index += match_len
  else
    terminal_parse_failure(":")
    r1 = nil
  end
  s0 << r1
  if r1
    r2 = _nt_positive_integer
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(DuplicateModifierNode,input, i0...index, s0)
    r0.extend(DuplicateModifier0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:duplicate_modifier][start_index] = r0

  r0
end

#root ⇒ Object 



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# File 'lib/brevity/parsing/modifiers/duplicate_modifier.rb', line 9

def root
  @root ||= :duplicate_modifier
end