FLX-6001: not derivable from the flux-expr/1 grammar

Family: expression language (the 6000 band)

The grammar is closed: only the productions in EXPR-SPEC §1 parse. There is no arithmetic, no lambda, no regex, no double-quoted string and no user-defined function.

Look it up offline

$ fluxsim explain FLX-6001

Every code is listed in the error index.