Stay in the scheme sphere long enough everyone has their SRFI moment and one concerning SRFI-19 in particular. Here I refer to the, "that's it, I can't stand no more, by god, this time I'm going replace SRFI-19" moment.<div> <br></div><div> A couple of months back I had my nth moment with SRFI-19 and my usual partial response.</div><div><br></div><div> <a href="https://github.com/RayRacine/racketlib/tree/datetime/src/racket/datetime">https://github.com/RayRacine/racketlib/tree/datetime/src/racket/datetime</a></div> <div><br></div><div>In SRFI-19's defense, unsurprisingly, the overall approach and design of SRFI-19 captures the gist of what needs to be done. That said, I did spend the rest of the morning cut and pasting a few core aspects of SRFI-19 around (core being those features I immediately needed).<div> <div><br></div><div>FWIW, I seem to recall the current Racket impl is missing a couple of leap second adjustments in the current release.</div><div><br></div><div><div>Overall I agree a number of SRFIs should be tidied up a bit, ported to modernized Racket syntax and added as part of the standard Racket collections. But who has the time?</div> <div><br></div><div>Ray</div><div><br><br><br><br><div class="gmail_quote">On Wed, Apr 4, 2012 at 11:52 AM, John Clements <span dir="ltr"><<a href="mailto:clements@brinckerhoff.org">clements@brinckerhoff.org</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br> On Apr 4, 2012, at 8:17 AM, Neil Toronto wrote:<br> <br> > On 03/27/2012 01:46 PM, Neil Van Dyke wrote:<br> >> Rodolfo Carvalho wrote at 03/27/2012 03:27 PM:<br> >>> Actually, I wonder if people use any srfi much?<br> >><br> >> Some people still use SRFIs with Racket (I don't anymore), but usually<br> >> Racket has somewhat better comparable features separate from SRFIs,<br> >> either built-in or in PLaneT.<br> ><br> > Contrary to this, both the `plot' and `db' libraries use SRFI-19 - "Time Data Types and Procedures". I don't know what `db' uses it for, but `plot' uses it to format dates and times. This is one rare case where Racket's built-in library isn't as full-featured as a SRFI.<br> <br> Along these lines, I find the continued necessity of SRFI 19 frustrating, and I'd like to make its functionality available in the core.<br> <br> In my experience, the utility of SRFI 19 falls into two categories<br> <br> 1) conversion to and from strings (especially "from"), and<br> 2) free conversion between dates, seconds, and julian dates.<br> <br> Are there other things that people use SRFI 19 for?<br> <br> John<br> <br> <br> ____________________<br> Racket Users list:<br> <a href="http://lists.racket-lang.org/users" target="_blank">http://lists.racket-lang.org/users</a><br> </blockquote></div><br></div></div></div></div>