- From: Jukka K. Korpela <jkorpela@cs.tut.fi>
- Date: Mon, 10 Nov 2003 14:05:22 +0200 (EET)
- To: David Dorward <david@dorward.me.uk>
- Cc: "Ullrich, Andreas" <Andreas.Ullrich@DREGIS.com>, "'www-validator@w3.org'" <www-validator@w3.org>
On Mon, 10 Nov 2003, David Dorward wrote: > > Line 9, column 27: cannot generate system identifier for general > > entity "v" > > <a href="test.php?f=region&v=1">test</a> > > > what is the problem?? > > &v is not an entity. Actually in SGML (and hence in pre-XHTML HTML) it _is_ an entity reference, just an undefined one, and that exactly is the problem then. The error message quoted above says this, though admittedly in a rather difficult language. In XML, it is not an entity reference, since by XML rules, the semicolon is obligatory. The construct is incorrect in XML by the rule that says: "The ampersand character (&) and the left angle bracket (<) may appear in their literal form only when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section. If they are needed elsewhere, they must be escaped using either numeric character references or the strings "&" and "<" respectively." http://www.w3.org/TR/REC-xml#syntax A validator's error message should thus depend on whether it acts as an SGML validator or as an XML validator. -- Jukka "Yucca" Korpela, http://www.cs.tut.fi/~jkorpela/
Received on Monday, 10 November 2003 07:05:26 UTC