Module: Music::Transcription::Parsing::Duration

Includes:
PositiveInteger, Treetop::Runtime
Included in:
DurationParser, Note
Defined in:
lib/music-transcription/parsing/duration_parsing.rb

Defined Under Namespace

Modules: DenOnly0, NumAndDen0, NumOnly0

Instance Method Summary collapse

Methods included from PositiveInteger

#_nt_positive_integer

Methods included from NonnegativeInteger

#_nt_nonnegative_integer

Instance Method Details

#_nt_den_only ⇒ Object 



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# File 'lib/music-transcription/parsing/duration_parsing.rb', line 161

def _nt_den_only
  start_index = index
  if node_cache[:den_only].has_key?(index)
    cached = node_cache[:den_only][index]
    if cached
      node_cache[:den_only][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(DenOnlyNode,input, i0...index, s0)
    r0.extend(DenOnly0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:den_only][start_index] = r0

  r0
end

#_nt_duration ⇒ Object 



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# File 'lib/music-transcription/parsing/duration_parsing.rb', line 17

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

  i0 = index
  r1 = _nt_num_and_den
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_num_only
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r3 = _nt_den_only
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:duration][start_index] = r0

  r0
end

#_nt_num_and_den ⇒ Object 



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# File 'lib/music-transcription/parsing/duration_parsing.rb', line 65

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

  i0, s0 = index, []
  r1 = _nt_positive_integer
  s0 << r1
  if r1
    if (match_len = has_terminal?("/", false, index))
      r2 = true
      @index += match_len
    else
      terminal_parse_failure("/")
      r2 = nil
    end
    s0 << r2
    if r2
      r3 = _nt_positive_integer
      s0 << r3
    end
  end
  if s0.last
    r0 = instantiate_node(NumDenNode,input, i0...index, s0)
    r0.extend(NumAndDen0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:num_and_den][start_index] = r0

  r0
end

#_nt_num_only ⇒ Object 



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# File 'lib/music-transcription/parsing/duration_parsing.rb', line 113

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

  i0, s0 = index, []
  r1 = _nt_positive_integer
  s0 << r1
  if r1
    if (match_len = has_terminal?("/", false, index))
      r3 = true
      @index += match_len
    else
      terminal_parse_failure("/")
      r3 = nil
    end
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(NumOnlyNode,input, i0...index, s0)
    r0.extend(NumOnly0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:num_only][start_index] = r0

  r0
end

#root ⇒ Object 



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# File 'lib/music-transcription/parsing/duration_parsing.rb', line 11

def root
  @root ||= :duration
end