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Re: Quiz: is this XML well-formed?

• From: Arjun Ray <arayq2@gmail.com>
• To: "xml-dev@lists.xml.org" <xml-dev@lists.xml.org>
• Date: Thu, 04 Feb 2021 15:57:00 -0500

On Thu, 4 Feb 2021 18:18:07 +0000, you wrote:

| No! It is not well-formed. There must be a space before reference="AGL" 
| like so:
| 
| <altitude units="meters" reference="AGL">1000</altitude>
| 
| But, but, but, ... Why is space required between attributes? Surely a 
| parser can recognize the start of the next attribute given the 
| end-delimiter of the previous attribute's value, yes?

Yes, a parser should be able to.

BTW, the space is not required in SGML when the end of an attribute
specification is clear.  See productions 31-35 here:

https://www.w3.org/MarkUp/SGML/productions.html

• References:
  • Quiz: is this XML well-formed?
    • From: Roger L Costello <costello@mitre.org>