Mailing List Archive: ModPerl: ASP

Trouble with the arrow operator("->") in custom tags

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chris.brown at cal

Apr 18, 2004, 10:33 PM

Post #1 of 4 (2356 views)
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Trouble with the arrow operator("->") in custom tags

Hi,

This could be really simple or really easy.

I want to write a custom tag that renders the content of the tag only if the
'test' argument evaluates to be true. I want it to work something like
this:

<asp:Test test="$Session->{User}">
The Session User Object Exists
</asp:Test>

Where the Perl code is:

sub asp::Test {

my ($args, $content) = @_;

if ( eval( $args->{test} ) != 0 ) {
$Response->Write("$content");
}

}

The problem here is that the parser recognizes the ">" of the arrow operator
"->" as the tag closure. Has anyone experienced similar troubles? Is there
a good (easy) solution?

Thanks In Advance,

Chris

peter.galbavy at photasmagoria

Apr 19, 2004, 12:35 AM

Post #2 of 4 (2214 views)
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Re: Trouble with the arrow operator("->") in custom tags [In reply to]

Christopher Brown wrote:
> The problem here is that the parser recognizes the ">" of the arrow
> operator "->" as the tag closure. Has anyone experienced similar
> troubles? Is there a good (easy) solution?
>

<asp:Test test="$Session->{User}">

perhaps ? Ugly, but hey.

Peter

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hz at hzlabs

Apr 19, 2004, 1:00 AM

Post #3 of 4 (2218 views)
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Re: Trouble with the arrow operator("->") in custom tags [In reply to]

Maybe

${$Session}{'User'}

helps?

Helmut

--On Sunday, April 18, 2004 22:33:36 -0700 Christopher Brown
<chris.brown [at] cal> wrote:

> Hi,
>
> This could be really simple or really easy.
>
> I want to write a custom tag that renders the content of the tag only if
> the 'test' argument evaluates to be true. I want it to work something
> like this:
>
> <asp:Test test="$Session->{User}">
> The Session User Object Exists
> </asp:Test>
>
>
> Where the Perl code is:
>
> sub asp::Test {
>
> my ($args, $content) = @_;
>
> if ( eval( $args->{test} ) != 0 ) {
> $Response->Write("$content");
> }
>
> }
>
> The problem here is that the parser recognizes the ">" of the arrow
> operator "->" as the tag closure. Has anyone experienced similar
> troubles? Is there a good (easy) solution?
>
> Thanks In Advance,
>
> Chris
>
>

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josh at chamas

Apr 19, 2004, 10:48 AM

Post #4 of 4 (2230 views)
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Re: Trouble with the arrow operator("->") in custom tags [In reply to]

Christopher Brown wrote:
> Hi,
>
> This could be really simple or really easy.
>
> I want to write a custom tag that renders the content of the tag only if
> the 'test' argument evaluates to be true. I want it to work something
> like this:
>
> <asp:Test test="$Session->{User}">
> The Session User Object Exists
> </asp:Test>
>
>

You can also try setting:

PerlSetVar XMLSubsPerlArgs Off

which will then enable <%= %> syntax in XMLSubs like:

<asp:Test test="<%= $Session->{User} %>">
The Session User Object Exists
</asp:Test>

Which will make the use of > safe inside those <%= %> blocks.

Regards,

Josh
________________________________________________________________________
Josh Chamas, Founder | NodeWorks - http://www.nodeworks.com
Chamas Enterprises Inc. | NodeWorks Directory - http://dir.nodeworks.com
http://www.chamas.com | Apache::ASP - http://www.apache-asp.org

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