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Posted to asp@perl.apache.org by Peter Galbavy <pe...@photasmagoria.com> on 2003/01/08 18:24:01 UTC
unknown entity blah - '&' problem
Using the w3c validator, I get 'unknown entity' error for URL generated
using $Server->URL().
--
Line 8, column 75: cannot generate system identifier for general entity
"session-id"
..."
href="/css/style.css?category=misc&session-id=0aa89fea729d35f3cee8cb638927a
--
comment at:
http://validator.w3.org/docs/errors.html#bad-entity :-
--
A reference to a URI that uses & as a separator between parameters, such as
http://example.org/prog?x=1&y=2.
To solve this problem, simply replace all the &'s in attribute values with
& (user agents will convert them back before following the links.)
Another way to get around this problem is for the author of the CGI program
to allow a different value to be used between arguments, like ';' or '|',
which would allow the link to be coded as e.g. <a
href="http://example.org/prog?x=1;y=2">
--
I didn't know this was ever a problem, but in light of this, is their anyway
to change the query string seperator or set it to (optional) '&' ? I
find this bizarre, as I have been using plain '&' forever, but I would have
thought that W3C know what they are talking about.
Peter
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Re: unknown entity blah - '&' problem
Posted by Thanos Chatziathanassiou <tc...@arx.gr>.
Peter Galbavy wrote:
>>Actually, you're supposed to say ``&'' instead of plain ``&''.
>>See also RFC 1738.
>>You can, however, also use ``;'' as a QueryString delimeter.
>>
>>
>
>That's cool - now how do we politely ask Apache::ASP to use ';' instead of
>'&' internally ? :-)
>
I don't suppose you can..
``;'' just works when you construct querystrings yourself.
I was hasty in my answer before, so I sent the message before I read
this problem was created by SessionQueryParse.
Help anyone (Josh ?) ?
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Re: unknown entity blah - '&' problem
Posted by Peter Galbavy <pe...@photasmagoria.com>.
> Actually, you're supposed to say ``&'' instead of plain ``&''.
> See also RFC 1738.
> You can, however, also use ``;'' as a QueryString delimeter.
That's cool - now how do we politely ask Apache::ASP to use ';' instead of
'&' internally ? :-)
Peter
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Re: unknown entity blah - '&' problem
Posted by Peter Galbavy <pe...@photasmagoria.com>.
> $Server->URL may or may not be used in generating URLs for use
> in HTML, so will not get this patch. The problem is specific to
> rendering & in HTML, not with & in URLs. If you want to escape
> & in $Server->URL generated URLs, you might try
>
> $Server->HTMLEncode($Server->URL($url, \%params));
Good point. Lucky someone is watching :)
Peter
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Re: unknown entity blah - '&' problem
Posted by Josh Chamas <jo...@chamas.com>.
Peter Galbavy wrote:
> And $Server->URL() ???
>
> If it is a small patch or one line fix (for the two) then just those - I
> am trying to run a live server with as few 'upgrades' as possible :)
>
$Server->URL may or may not be used in generating URLs for use
in HTML, so will not get this patch. The problem is specific to
rendering & in HTML, not with & in URLs. If you want to escape
& in $Server->URL generated URLs, you might try
$Server->HTMLEncode($Server->URL($url, \%params));
You can create a shortcut for this of course in global.asa.
For the patch, you may look at the diffs between releases for
the Response.pm module after 2.51 is out.
Regards,
Josh
________________________________________________________________
Josh Chamas, Founder phone:925-552-0128
Chamas Enterprises Inc. http://www.chamas.com
NodeWorks Link Checking http://www.nodeworks.com
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Re: unknown entity blah - '&' problem
Posted by Peter Galbavy <pe...@photasmagoria.com>.
And $Server->URL() ???
If it is a small patch or one line fix (for the two) then just those - I
am trying to run a live server with as few 'upgrades' as possible :)
Peter
----- Original Message -----
From: "Josh Chamas" <jo...@chamas.com>
To: "Thanos Chatziathanassiou" <tc...@arx.gr>
Cc: <as...@perl.apache.org>; "Peter Galbavy"
<pe...@photasmagoria.com>
Sent: Thursday, January 09, 2003 9:27 AM
Subject: Re: unknown entity blah - '&' problem
> Thanos Chatziathanassiou wrote:
> > Peter Galbavy wrote:
> >
> >> Using the w3c validator, I get 'unknown entity' error for URL
generated
> >> using $Server->URL().
> >>
> >> --
> >> Line 8, column 75: cannot generate system identifier for general
entity
> >> "session-id"
> >> ..."
> >>
href="/css/style.css?category=misc&session-id=0aa89fea729d35f3cee8cb6389
27a
> >>
> >> --
> >>
> >>
> > Actually, you're supposed to say ``&'' instead of plain ``&''.
> > See also RFC 1738.
> > You can, however, also use ``;'' as a QueryString delimeter.
> >
>
> Right. SessionQueryParse should be adding & to the query strings,
> not & for proper HTML. This has been true for enough years now that
> browsers support this, that I am OK with this.
>
> I'll have this added to the 2.51 release, let me know if you want the
> development release early.
>
> Regards,
>
> Josh
> ________________________________________________________________
> Josh Chamas, Founder phone:925-552-0128
> Chamas Enterprises Inc. http://www.chamas.com
> NodeWorks Link Checking http://www.nodeworks.com
>
>
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Re: unknown entity blah - '&' problem
Posted by Josh Chamas <jo...@chamas.com>.
Thanos Chatziathanassiou wrote:
> Peter Galbavy wrote:
>
>> Using the w3c validator, I get 'unknown entity' error for URL generated
>> using $Server->URL().
>>
>> --
>> Line 8, column 75: cannot generate system identifier for general entity
>> "session-id"
>> ..."
>> href="/css/style.css?category=misc&session-id=0aa89fea729d35f3cee8cb638927a
>>
>> --
>>
>>
> Actually, you're supposed to say ``&'' instead of plain ``&''.
> See also RFC 1738.
> You can, however, also use ``;'' as a QueryString delimeter.
>
Right. SessionQueryParse should be adding & to the query strings,
not & for proper HTML. This has been true for enough years now that
browsers support this, that I am OK with this.
I'll have this added to the 2.51 release, let me know if you want the
development release early.
Regards,
Josh
________________________________________________________________
Josh Chamas, Founder phone:925-552-0128
Chamas Enterprises Inc. http://www.chamas.com
NodeWorks Link Checking http://www.nodeworks.com
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Re: unknown entity blah - '&' problem
Posted by Thanos Chatziathanassiou <tc...@arx.gr>.
Peter Galbavy wrote:
>Using the w3c validator, I get 'unknown entity' error for URL generated
>using $Server->URL().
>
>--
>Line 8, column 75: cannot generate system identifier for general entity
>"session-id"
> ..."
>href="/css/style.css?category=misc&session-id=0aa89fea729d35f3cee8cb638927a
>--
>
>
Actually, you're supposed to say ``&'' instead of plain ``&''.
See also RFC 1738.
You can, however, also use ``;'' as a QueryString delimeter.
Regards,
Thanos Chatziathanassiou
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Re: unknown entity blah - '&' problem
Posted by Peter Galbavy <pe...@photasmagoria.com>.
> Using the w3c validator, I get 'unknown entity' error for URL generated
> using $Server->URL().
>
> --
> Line 8, column 75: cannot generate system identifier for general entity
> "session-id"
> ..."
>
href="/css/style.css?category=misc&session-id=0aa89fea729d35f3cee8cb638927a
> --
Thinking about this, this was *not* generated using $Server-URL() but by
SessionQueryParse etc.
Same issue(s) though...
Peter
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