ref: 357b2411f4cb3d37ff54e8a7a13ae36d387a1bb8
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, "")