[Phplib-trackers] [ phplib-Bugs-501788 ] & char in URIs is invalid XHML

[<no...@so...>]

Bugs item #501788, was opened at 2002-01-10 15:11
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Category: None
Group: None
Status: Closed
Resolution: Rejected
Priority: 5
Submitted By: Gaetano Giunta (ggiunta)
Assigned to: Richard Archer (richardarcher)
Summary: & char in URIs is invalid XHML

Initial Comment:
Intro:

when writing XHTML docs the href attribute cannot ever 
contain the & char. So all URIs containing a query part with more than 
1 params need to be rewritten using the & escape sequence (I 
tried it and it works!)

Problem:

the url(), self_url() 
etc... functions in phplib all use/search for only the & char as a 
query separator

Suggestion:

make new xurl(), 
xself_url(), ... functions, or modify existing 
ones...

Thanks, Gaetano

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>Comment By: Gaetano Giunta (ggiunta)
Date: 2002-03-20 11:49

Message:
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I know it sounds pretty funky, but I found it out while 
validating a phplib web site I was building (using w3c's 
own validator by means of the opera browser validate 
function).
The main point is that the URI is specified as an attribute 
value. And XML forbids unescaped ampersands in attribute 
values (... seems like I cannot find reference to this 
assertion quicky anymore, so take it as my opinion only)

Document references:
XHTML 1.0 second edition draft, section C12
XML 1.0 second edition recommendation



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Comment By: Richard Archer (richardarcher)
Date: 2002-01-14 21:25

Message:
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Are you sure the "&" character is not allowed? That would
seem to me to be illogical. 

Example: in order to pass a parameter "tv=black&white" you
need to escape the '&'.

The XHTML spec at: 
http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd
defines a URI as:

<!ENTITY % URI "CDATA">
<!-- a Uniform Resource Identifier, see [RFC2396] -->


RFC 2396 http://www.faqs.org/rfcs/rfc2396.html defines '&'
as a reserved character. These may appear unescaped in URIs
and indeed *must* not be escaped or the meaning of the URI
may change.

Perhaps the implementation of XHTML you're using is buggy?

Otherwise, I'd appreciate a link to an XHTML spec that
defines URI's differently!


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