<<< native
[ EGrouped [ ESymbol Op "\8747" , EIdentifier "x" ]
, EGrouped [ ESymbol Op "\8747" , EIdentifier "M" ]
, EDelimited
    "\8747"
    ""
    [ Right (EFraction NormalFrac (EIdentifier "x") (EIdentifier "o"))
    ]
, EDelimited
    "\8747"
    ""
    [ Right (EFraction NormalFrac (EIdentifier "A") (EIdentifier "o"))
    ]
, EDelimited
    "\8747"
    ""
    [ Right (EFraction NormalFrac (EIdentifier "x") (EIdentifier "A"))
    ]
, EDelimited
    "\8747"
    ""
    [ Right (EFraction NormalFrac (EIdentifier "A") (EIdentifier "M"))
    ]
, EDelimited
    "\8747"
    ""
    [ Right (EFraction NormalFrac (EIdentifier ".") (EIdentifier "''"))
    ]
]
>>> tex
{\int x}{\int M}\left. \int\frac{x}{o} \right.\left. \int\frac{A}{o} \right.\left. \int\frac{x}{A} \right.\left. \int\frac{A}{M} \right.\left. \int\frac{.}{''} \right.