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- From: David Megginson <firstname.lastname@example.org>
- To: email@example.com
- Date: Fri, 17 Jul 1998 09:54:41 -0400
Ron Bourret writes:
> Section 2.5, "Comments", states that "For compatibility, the string "--"
> (double-hyphen) must not occur within comments."
> I figured that this meant the spec authors were not totally happy
> with this restriction, but they added it for SGML compatibility
> reasons and that "--" really was not allowed in comments. However,
> both MSXML and Aelfred allow it. XP does not.
> Who is correct? Does "for compatibility" mean the parser is not
> required to support this if it is not interested in SGML
> compatibility? Is this something special about comments?
XP is correct. This constraint is built directly into the grammatical
 Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
All the best,
David Megginson firstname.lastname@example.org
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