Required ability of software? none

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From: Paul & Eleanor (goodhill_at_xmission.com)
Date: Sat Feb 10 2001 - 16:42:33 CET 

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Date: Sat, 10 Feb 2001 08:42:33 -0700
From: Paul & Eleanor <goodhill_at_xmission.com>
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Subject: Required ability of software? none
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Roger Schuster wrote:
> But if a software can
> read CaveXML it also must write it without any loss of information.

Please let's not force others to care about things that aren't important
to them.

It depends on software. If an author wants his software to be an
authoritative database for anything anyone throws at it, then yes, I
suppose the author must "expand his native file format
in a way that it can keep the additional info even if the software
doesn't
work with it.", but consider the following examples.

First, an Application that draws nice three pictures of what it is
given.
This program filters through the CaveXML finding what it wants, maybe
even
converting to it own format. It can toss whatever it doesn't want.

Consider another program: A program that is designed to analyze some
number
of statistics about a cave or part of a cave. Again, it just finds
what it wants.

Now also consider that either one of these programs could be tought
to understand surveys or rooms or names of stations and select
based on those, but it is also the case that the real source of
the caveXML could do that for these other apps.

It is also the case that simple transformations on XML can be done
with standard parsers and an XSL style sheet, so there is no
real requirement that any of the apps be all knowing.

-Paul

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