ref: 4e490585cee4656c1b1659956d0693f506db65b6
dir: /parse/cstr.def/
Tc(Tcnum, "tcnum") /* arith ops */ Tc(Tcint, "tcint") /* bitwise ops */ Tc(Tctest, "tctest") /* if condition */ Tc(Tcidx, "tcidx") /* indexable */ Tc(Tcslice, "tcslice") /* sliceable */ Tc(Ncstr, "")