On Mon, Jul 20, 2020 at 11:27:03PM +0200, tomas@tuxteam.de wrote: > Hi, > > I'm trying to parse some stuff, part of which are date > strings of the form "20200106", i.e. "YYYYMMDD" [...] > Is there a canonical way to validate a date string? I ended up rolling my own (and converting to SRFI-19 date once validation says "OK"). Is there interest in such a thing? i.e. valid-date? (y m d) -> bool returns whether (y m d) is a valid Gregorian date. I wouldn't mind putting it up somewhere, with a suitable license. OTOH, it's a whopping 36 lines or so, so perhaps not worth it ;-D Cheers -- t