-- The symbols have been parsed from JSON:
-- [{"b": {"follow": null}},   -- could have a parameter to indicate offset
--  {"r": {"scale": 0.6}},
--  {"<": {"angle": 0.14285714285714}},
--  {">": {"angle": -0.14285714285714}}
-- ]
symbols = (map toSymbolMap . filter isTerminal) grammar
symbols = (map toSymbolMap . filter isTerminal) grammar
symbols = (map toSymbolMap . filter isTerminal) grammar