module Music::Transcription::Parsing::NonnegativeRational
Public Instance Methods
_nt_nonnegative_rational()
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# File lib/music-transcription/parsing/numbers/nonnegative_rational_parsing.rb, line 37 def _nt_nonnegative_rational start_index = index if node_cache[:nonnegative_rational].has_key?(index) cached = node_cache[:nonnegative_rational][index] if cached node_cache[:nonnegative_rational][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true @index = cached.interval.end end return cached end i0, s0 = index, [] r1 = _nt_nonnegative_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(SyntaxNode,input, i0...index, s0) r0.extend(NonnegativeRational0) r0.extend(NonnegativeRational1) else @index = i0 r0 = nil end node_cache[:nonnegative_rational][start_index] = r0 r0 end
root()
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# File lib/music-transcription/parsing/numbers/nonnegative_rational_parsing.rb, line 11 def root @root ||= :nonnegative_rational end