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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
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