Hello all,
Sjamaan and Mario on the channel brought up an interesting issue with substring=?. The current semantics check only to the length of the shorter string, so: (and (substring=? "foo" "foobar") (substring=? "foobar" "foo")) => #t I submit that this behaviour is conceptually broken. substring is an instance of a subset operation, and (and (subset? a b) (subset? b a)) => #t always implies that a = b. I think the correct behaviour would be adding a check to the beginning of the substring=? procedure, such that (if (> (length a) (length b)) #f ...) That said, I can understand the point of a string comparator that only tests up to the length of the shortest argument, but I submit that it shouldn't be named substring, which has different normal semantics. :) Thoughts, ideas, changes, flames? -elf _______________________________________________ Chicken-hackers mailing list Chicken-hackers@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-hackers
