tokens.test

<<< native
[ EOver False (EIdentifier "\981") (ESymbol Accent "\771")
, ESqrt (EIdentifier "\981")
, EFraction NormalFrac (EIdentifier "\981") (EIdentifier "\958")
, EFraction NormalFrac (EIdentifier "\981") (EIdentifier "\958")
, EFraction NormalFrac (EIdentifier "\981") (EIdentifier "\958")
, EDelimited "(" ")" [ Right (EIdentifier "\981") ]
, EDelimited "(" ")" [ Right (EIdentifier "\981") ]
, EIdentifier "\958"
]
>>> eqn
phi to \[u0303] sqrt phi phi over xi phi over xi phi over xi left ( phi right ) left ( phi right ) xi