I sometimes use a program called Expresso, wasn't bad, but haven't used it enough to fully give it a critique. love/hate is right. Oh man, a dream of mine is to make an interperter that take...

I don't know if this is the same program, but I used to use something (command-line prog) that would generate regex. You were given choices like, "this exact string", "any char", "any number", "n ...