OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help



   A different comment syntax question

[ Lists Home | Date Index | Thread Index ]
  • From: David Megginson <david@megginson.com>
  • To: xml-dev@ic.ac.uk
  • Date: Fri, 17 Jul 1998 11:59:43 -0400

Rob Cameron writes:

 > If, as I assume, the answer is that only the double hyphen case
 > is a concern, then the grammar needs to be changed.
 >    Comment ::= '<!--' (Char* - (Char* '--' Char*)) '-->'

I imagine that there would be look-ahead problems: a parser would find
'--', then see that '-' is the following character, and then report an
error.  I don't think that anything in the XML 1.0 REC currently
requires more than one character look-ahead.

As a simple work-around, I'd recommend always adding a space to the
beginning and end of your comment string before surrounding it by the
delimiters, so you'd have

  <!-- This is a comment - -->

rather than

  <!--This is a comment--->

All the best,


David Megginson                 david@megginson.com

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/
To (un)subscribe, mailto:majordomo@ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)


News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 2001 XML.org. This site is hosted by OASIS