- From: William F Hammond <hammond@csc.albany.edu>
- Date: 19 Apr 2003 10:32:23 -0400
- To: www-math@w3.org, www-validator@w3.org
Nick Kew <nick@webthing.com> writes:
> . . .
> Fetching the MathML DTD + modules by HTTP is too big an overhead
> and will slow the server unacceptably. We need to keep local copies,
Yes. I cannot imagine a validating production operation of any size
that should not want local copies.
> which means we're stuffed if you change the DTDs by stealth (i.e. without
> creating a new public identifier for the updated DTDs).
An http HEAD request usually receives a header "Last-Modified". As
long as the http server provides that, there is no added value in
changing either public or system identifier for a glitch-level error
correction.
> It would be more helpful if you could notify us whenever the DTDs are
> updated.
This would be very helpful.
> I guess the basic problem is we never expected DTDs to change without
> it showing in their PUBLIC and SYSTEM IDs, so we're not geared up for
> automatic mirroring. I'm wondering what would be the implication of
> setting up a cron job to fetch the whole lot weekly or something?
Gnu "wget" is timestamp sensitive through ftp and http according to
its docs. (I've never given it much attention.)
-- Bill
Received on Saturday, 19 April 2003 10:32:36 UTC