Module: Brevity::Link

Includes:
Pitch, Treetop::Runtime
Included in:
LinkParser, Note
Defined in:
lib/brevity/parsing/note/link.rb

Defined Under Namespace

Modules: Link0

Instance Method Summary collapse

Methods included from Pitch

#_nt_pitch

Instance Method Details

#_nt_link ⇒ Object 



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# File 'lib/brevity/parsing/note/link.rb', line 25

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

  i0, s0 = index, []
  if has_terminal?(@regexps[gr = '\A[=\\-~/]'] ||= Regexp.new(gr), :regexp, index)
    r1 = true
    @index += 1
  else
    terminal_parse_failure('[=\\-~/]')
    r1 = nil
  end
  s0 << r1
  if r1
    r2 = _nt_pitch
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(LinkNode,input, i0...index, s0)
    r0.extend(Link0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:link][start_index] = r0

  r0
end

#root ⇒ Object 



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# File 'lib/brevity/parsing/note/link.rb', line 9

def root
  @root ||= :link
end