Subject: Re: [xsl] How to retain the end tag when outputting an empty element? From: "Liam R. E. Quin liam@xxxxxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Sun, 19 Jun 2022 00:40:13 -0000 |
On Sat, 2022-06-18 at 20:04 +0000, Peter Flynn peter@xxxxxxxxxxx wrote: > > Yes, absolutely. However, web browsers sometimes fail to grok the > difference between (say) <hr/> and <hr></hr> and thus render them > differently, so when you output HTML or XHTML, it may make a > difference. > "sometimes fail" - in particular </hr> isn't legal in HTML mode. The <hr> is #empty and "self-closing", so after that the parser is not expecting </hr>. When it see one, it imputes that there must have been a missing <hr>, so <hr></hr> may turn into <hr><hr> when parsed in HTML; same with <br>. May and sometimes - depends on the DOCTYPE line: if it's not <DOCTYPE html>, it'll depend on the individual browser. And in xhtml mode, you should be able to use <hr></hr>, but it's not wise as HTML parsers will go wrong with it :) The Polyglot HTML spec says more about this. liam -- Liam Quin,B https://www.delightfulcomputing.com/ Available for XML/Document/Information Architecture/XSLT/ XSL/XQuery/Web/Text Processing/A11Y training, work & consulting. Barefoot Web-slave, antique illustrations: B http://www.fromoldbooks.org
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