From: Tobias Reif <tobiasreif@...>
Date: 2002-06-10T05:44:18+09:00
Subject: Re: ANN: REXML 2.3.5 && 2.2.3

james@rubyxml.com wrote:

>>I know this is probably naive from me but I thought I was told
>>that "<",">"
>>and "&" where the 3 characters that were never to be found in a text
>>node in xml in their normal form. they should be replaced by the
>>entities "&lt;" "&gt;" and "&amp;". How can this bug be a bug then ?


More precisely:
"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 "&amp;" and "&lt;" respectively."


> ">" is OK, though some (me) find it easier to read if all such markup is
> escaped (rather than just the "<").


"
The right angle bracket (>) may be represented using the string "&gt;", 
and must, for compatibility, be escaped using "&gt;"
"

In attributes it's either "'", '"', or "To allow attribute values to 
contain both single and double quotes, the apostrophe or single-quote 
character (') may be represented as "&apos;", and the double-quote 
character (") as "&quot;".
"

http://www.w3.org/TR/REC-xml.html#syntax

Tobi

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