Aaron Hill <lilyp...@hillvisions.com> writes: > On 2021-11-13 11:50 am, Carl Sorensen wrote: >> I'm not sure it is worth the work to get semantically correct, but >> semantically, \time 4/4 should not be a fraction of two integers; it >> should be a pair of a count and a duration. > > Currently, the lexer consumes the number/number pattern as the token > FRACTION. And FRACTION gets used in a few places within the parser > proper. (Duration scaling is one example.) Perhaps the lexer is too > greedy and should not attempt to tokenize the fraction. Deferring the > work to the parser could enable more generalized fraction-like > constructs such as number/duration, but I am unsure the cost. > > David, do you know any reasons why FRACTION is a token and not a > parser rule?
Wagonloads of lookahead? -- David Kastrup
