Module: Musicality::Parsing::Link

Includes:
Pitch, Treetop::Runtime
Included in:
LinkParser, Note
Defined in:
lib/musicality/notation/parsing/link_parsing.rb

Defined Under Namespace

Modules: Glissando0, Portamento0

Instance Method Summary collapse

Methods included from Pitch

#_nt_cent, #_nt_letter_a, #_nt_letter_b, #_nt_letter_c, #_nt_letter_d, #_nt_letter_e, #_nt_letter_f, #_nt_letter_g, #_nt_octave, #_nt_pitch, #_nt_pitch_letter

Methods included from NonnegativeInteger

#_nt_nonnegative_integer

Instance Method Details

#_nt_glissando ⇒ Object 



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# File 'lib/musicality/notation/parsing/link_parsing.rb', line 84

def _nt_glissando
  start_index = index
  if node_cache[:glissando].has_key?(index)
    cached = node_cache[:glissando][index]
    if cached
      node_cache[:glissando][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_pitch
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(GlissandoNode,input, i0...index, s0)
    r0.extend(Glissando0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:glissando][start_index] = r0

  r0
end

#_nt_link ⇒ Object 



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# File 'lib/musicality/notation/parsing/link_parsing.rb', line 16

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 = index
  r1 = _nt_tie
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_glissando
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r3 = _nt_portamento
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:link][start_index] = r0

  r0
end

#_nt_portamento ⇒ Object 



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# File 'lib/musicality/notation/parsing/link_parsing.rb', line 127

def _nt_portamento
  start_index = index
  if node_cache[:portamento].has_key?(index)
    cached = node_cache[:portamento][index]
    if cached
      node_cache[:portamento][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_pitch
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(PortamentoNode,input, i0...index, s0)
    r0.extend(Portamento0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:portamento][start_index] = r0

  r0
end

#_nt_tie ⇒ Object 



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# File 'lib/musicality/notation/parsing/link_parsing.rb', line 54

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

  if (match_len = has_terminal?("~", false, index))
    r0 = instantiate_node(TieNode,input, index...(index + match_len))
    @index += match_len
  else
    terminal_parse_failure('"~"')
    r0 = nil
  end

  node_cache[:tie][start_index] = r0

  r0
end

#root ⇒ Object 



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# File 'lib/musicality/notation/parsing/link_parsing.rb', line 10

def root
  @root ||= :link
end