module Musicality::Parsing::Key
Public Instance Methods
_nt_key()
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# File lib/musicality/notation/parsing/key_parsing.rb, line 51 def _nt_key start_index = index if node_cache[:key].has_key?(index) cached = node_cache[:key][index] if cached node_cache[:key][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_letter s0 << r1 if r1 if has_terminal?(@regexps[gr = '\A[#b]'] ||= Regexp.new(gr), :regexp, index) r3 = true @index += 1 else terminal_parse_failure('[#b]') r3 = nil end if r3 r2 = r3 else r2 = instantiate_node(SyntaxNode,input, index...index) end s0 << r2 if r2 r4 = _nt_major_minor s0 << r4 end end if s0.last r0 = instantiate_node(SyntaxNode,input, i0...index, s0) r0.extend(Key0) r0.extend(Key1) else @index = i0 r0 = nil end node_cache[:key][start_index] = r0 r0 end
_nt_major_minor()
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# File lib/musicality/notation/parsing/key_parsing.rb, line 98 def _nt_major_minor start_index = index if node_cache[:major_minor].has_key?(index) cached = node_cache[:major_minor][index] if cached node_cache[:major_minor][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true @index = cached.interval.end end return cached end i0 = index if (match_len = has_terminal?("maj", false, index)) r1 = instantiate_node(SyntaxNode,input, index...(index + match_len)) @index += match_len else terminal_parse_failure('"maj"') r1 = nil end if r1 r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true r0 = r1 else if (match_len = has_terminal?("min", false, index)) r2 = instantiate_node(SyntaxNode,input, index...(index + match_len)) @index += match_len else terminal_parse_failure('"min"') r2 = nil end if r2 r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true r0 = r2 else @index = i0 r0 = nil end end node_cache[:major_minor][start_index] = r0 r0 end
root()
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# File lib/musicality/notation/parsing/key_parsing.rb, line 10 def root @root ||= :key end