# Trigger a parser error in the function parse_substitute_ in order to improve the error message.
# Note that this is not a valid substitution, this test is made to trigger an error.

languagesystem latn dflt;

@base = [a e];
@accents = [acute grave];

feature abvs {
    lookup lookup1 {
        sub @base @accents by @base;
    } lookup1;
} abvs;