Re: Is an XQuery Document an XML Document?

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To: "Roger L. Costello" <costello@m...>, xml-dev@l...
Subject: Re: Is an XQuery Document an XML Document?
From: "Sergio J. Rodriguez M." <srodriguez142857@y...>
Date: Sun, 28 Nov 2004 10:46:55 -0600 (CST)
Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; b=AiVb7bvbZWwRREGsoPQaqv54iOntm2hJebgbSkVITq8XS+0jJuVkOt1ktNFsRfx6SMQAEY7tfHwWchdG+/hqqO79ubRm1XhyweYbXxyhhWNx4bSomAYD4D7IvD/tP4yjzho1+UWDLwn/KYin2Ilc72l41cdWG+UBCEQi/e01mpI= ;
In-reply-to: <200411281506.iASF6ra06489@s...>
Reply-to: srodriguez142857@y...

Hi, Roger.

I'm no expert on this field (XQuery), but AFAIK there is no such thing like "XQuery document": XQuery is an expression and functional language, who evaluate expressions. For example:

3 + 5

Is a full XQuery expression that an XQuery parser can evaluate. In fact, a "XQuery document" is a XQuery expression that may consist of other expressions.

A XQuery expression may evaluate to an XML document (well-formed of course), but still, it can evaluate just to a chunk of bytes (string)...

Anyway, your point of view is very interesting.

Regards,

Sergio Rodríguez.

"Roger L. Costello" <costello@m...> wrote:

So, you might conclude, "A fundamental rule in XML is that the "<" symbol
is reserved and must be escaped. XQuery does not heed this rule.

Therefore, an XQuery document is not an XML document."

Okay, I give up. Which is it? XML or not? If it's not XML then why

is it called "XML Query Language"? /Roger

Do You Yahoo!?
http://net.yahoo.com.mx: La mejor conexión a internet y 25MB extra a tu correo por http://net.yahoo.com.mx/.

References:
- Is an XQuery Document an XML Document?
  - From: "Roger L. Costello" <costello@m...>

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