Module: Brevity::Note

Includes:
Accent, Duration, Link, Pitch, Treetop::Runtime
Included in:
Expression, NoteParser, Sequence
Defined in:
lib/brevity/parsing/note/note.rb

Defined Under Namespace

Modules: MonophonicNote0, PitchLink0, PolyphonicNote0, PolyphonicNote1, RestNote0

Instance Method Summary collapse

Methods included from Duration

#_nt_den_only, #_nt_duration, #_nt_num_and_den, #_nt_num_only

Methods included from PositiveInteger

#_nt_positive_integer

Methods included from NonnegativeInteger

#_nt_nonnegative_integer

Methods included from Link

#_nt_link

Methods included from Pitch

#_nt_pitch

Methods included from Accent

#_nt_accent

Instance Method Details

#_nt_monophonic_note ⇒ Object 



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# File 'lib/brevity/parsing/note/note.rb', line 106

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

  i0, s0 = index, []
  r1 = _nt_duration
  s0 << r1
  if r1
    r2 = _nt_pitch_link
    s0 << r2
    if r2
      r4 = _nt_accent
      if r4
        r3 = r4
      else
        r3 = instantiate_node(SyntaxNode,input, index...index)
      end
      s0 << r3
    end
  end
  if s0.last
    r0 = instantiate_node(MonophonicNoteNode,input, i0...index, s0)
    r0.extend(MonophonicNote0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:monophonic_note][start_index] = r0

  r0
end

#_nt_note ⇒ Object 



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

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

  i0 = index
  r1 = _nt_polyphonic_note
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_monophonic_note
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r3 = _nt_rest_note
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:note][start_index] = r0

  r0
end

#_nt_pitch_link ⇒ Object 



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# File 'lib/brevity/parsing/note/note.rb', line 257

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

  i0, s0 = index, []
  r1 = _nt_pitch
  s0 << r1
  if r1
    r3 = _nt_link
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
    r0.extend(PitchLink0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:pitch_link][start_index] = r0

  r0
end

#_nt_polyphonic_note ⇒ Object 



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# File 'lib/brevity/parsing/note/note.rb', line 170

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

  i0, s0 = index, []
  r1 = _nt_duration
  s0 << r1
  if r1
    r2 = _nt_pitch_link
    s0 << r2
    if r2
      s3, i3 = [], index
      loop do
        i4, s4 = index, []
        if (match_len = has_terminal?(",", false, index))
          r5 = true
          @index += match_len
        else
          terminal_parse_failure(",")
          r5 = nil
        end
        s4 << r5
        if r5
          r6 = _nt_pitch_link
          s4 << r6
        end
        if s4.last
          r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
          r4.extend(PolyphonicNote0)
        else
          @index = i4
          r4 = nil
        end
        if r4
          s3 << r4
        else
          break
        end
      end
      if s3.empty?
        @index = i3
        r3 = nil
      else
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      end
      s0 << r3
      if r3
        r8 = _nt_accent
        if r8
          r7 = r8
        else
          r7 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r7
      end
    end
  end
  if s0.last
    r0 = instantiate_node(PolyphonicNoteNode,input, i0...index, s0)
    r0.extend(PolyphonicNote1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:polyphonic_note][start_index] = r0

  r0
end

#_nt_rest_note ⇒ Object 



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# File 'lib/brevity/parsing/note/note.rb', line 65

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

  i0, s0 = index, []
  r1 = _nt_duration
  s0 << r1
  if s0.last
    r0 = instantiate_node(RestNoteNode,input, i0...index, s0)
    r0.extend(RestNote0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:rest_note][start_index] = r0

  r0
end

#root ⇒ Object 



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

def root
  @root ||= :note
end