Subject: Re: [xsl] James Clark on Schema From: "J.Pietschmann" <j3322ptm@xxxxxxxx> Date: Sat, 08 Jun 2002 21:12:54 +0200 |
Ah! Worlds in Collision!
On one side are those who see data types as essential features of any information set.
On the other, are those who see data types as useful (even important and sometimes essential) for local processing, but for interchange, as Just Another Label.
Well, I met the two views in this form: Given <foo>12345</foo> 1. It is a number! I can add 1 to it! 2. Don't care. I get it as a string from may API anyway.
A neat expression of this collision was the redefinition of the german ZIP codes in, uh, 1992? The new codes had leading zeros, thereby thouroughly confusing programs which was build on the assumption that ZIP codes were and always will be numbers, and that numbers don't have leading zeros if printed on letter envelopes...
Interesting question: does the example above support the view that data types are actually important or the view that the only data type that really matters is "string" and everything else is optional?
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