Re: defaulting units for measurements

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From: Ralph Hartley (hartley_at_aic.nrl.navy.mil)
Date: Fri Feb 09 2001 - 14:58:11 CET 

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Date: Fri, 09 Feb 2001 08:58:11 -0500
From: Ralph Hartley <hartley_at_aic.nrl.navy.mil>
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To: cavexml_at_cartography.ch
Subject: Re: defaulting units for measurements
References: <20010208231656.TBRY24947.t21mta03-app.talk21.com_at_t21mtaV-lrs>
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martinl_at_talk21.com wrote:

>> On Thu, 8 Feb 2001, Ralph Hartley wrote:
>>
>> <property from=<station name="1"\> > <!-- Syntax for an element as value of a field? --!>
>> <property to=<station name="2"\> >
>>
>> Excuse me? The above aren't even wellformed XML.
>>
>> I'm having trouble telling what was actually intended...
>
>
> How about:
> <property from_station="1"/>
> <property to_station="2"/>

OK, but with ">" not "/>". There is a </property>.

> or
> <property name="from"><station name="1"/></property >
> <property name="to"><station name="2"/></property >

That doesn't work. The whole idea of the property element was to provide
default attributes for whatever it encloses.

> <property from_station="1" to_station="2"/>

Almost ok (without the "/"), it would be legal, but in my example the
from and to ended at different places. The "left" measurement needs the
"to_station" but an "up" measurement doesn't (but would ignore it so it
wouldn't really matter even in my example).

> Maybe we all need to study a few XML references - the basic rules are pretty easy

Pure laziness I'm afraid (also real work sometimes interferes).

Ralph

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