- From: Jukka K. Korpela <jkorpela@cs.tut.fi>
- Date: Sat, 26 Apr 2003 20:39:59 +0300 (EEST)
- To: www-validator@w3.org
On Sat, 26 Apr 2003, Gabor Hojtsy wrote: > Brrrrr, <link can be closed with / ?? Yes, as any element, by the rules that validators check against. > What standard says, that a tag can be closed with / alone? The SGML standard, ISO 8879. > <body><img src="http://www.w3.org/Icons/valid-xhtml10" alt="xhtml"/><hr > /></body> > > This also validates as HTML 4.01. Yes, as HTML 4.01 Transitional, and it is equivalent to <body><img src="http://www.w3.org/Icons/valid-xhtml10" alt="xhtml">><hr>></body> The reason you don't see those >'s rendered is that browsers (except for a few exotic exceptions) do not process HTML correctly - any version of HTML. That's one reason why XHTML was developed; it is retrofitted to the simple non-SGML parseres that browsers contain. > None of the <img/> or <hr/> tags close the > body, or anything... Why should they? Character data, such as ">" is allowed in <body>. > Excuse me, but I don't understand this. You're not alone. > / in a <link> is interpreted as the > end of the link, while / in an <img>, <hr>, <br>, etc. is not considered end > of the tag? No, by SGML rules, as formally applied in HTML, it terminates the element. What matters in validation is whether character data (the ">" character) is accepted in the context. There's a long explanation at http://www.cs.tut.fi/~jkorpela/html/empty.html but the bottom line is: If you move from HTML to XHTML, do so completely, for any given document. In-between syntax typically results in something that is invalid under _both_ HTML _and_ XHTML specifications. -- Jukka "Yucca" Korpela, http://www.cs.tut.fi/~jkorpela/
Received on Saturday, 26 April 2003 13:40:07 UTC