ffb1931c7d
- Add splitAmountUnit to parse quantities with unit attached without
% separator (e.g., @water{1,1/2cups}, @gelatine{3tsp})
- Add isNumericChar helper for detecting numeric quantity characters
- Add compound quantity test (1,1/2 cups = 3/2)
- Add no-separator unit test (3tsp)
- All 26 tests passing, all 4 example files parse correctly