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Re: Perl variable within Javascript?
Derek--
This works great! And thanks to everyone else for their suggestions
and support. This will create a lot of happy campers here!
--Eric
> Date: Wed, 23 Feb 2000 14:20:53 -0500 (EST)
> From: Derek Lane <derek@duke.edu>
> Subject: Re: Perl variable within Javascript?
> To: eric.stedfeld@nyu.edu
> Cc: perl4lib@VIMS.EDU
> Eric --
>
>
> > This is the last piece of a Perl puzzle, for me. I have a Perl
> > variable $sessionid that holds the value of a user sessionid. I
> > obtained the value by using my Perl script to connect to our catalog
> > through its Web interface. Now, I want to use that variable within
> > some Javascript on a new Web page that the Perl script generates....
>
> TIMTOWDI. In this case you know what the string should look like, so
> you don't have to be so careful. A simple:
>
> $html = <<'EOM';
> <HTML>
> <HEAD><TITLE>Patron info link</TITLE>
> <SCRIPT LANGUAGE=Javascript>
> var iwin;
> function instruct()
> {
> iwin =
> window.open("http://www.bobcat.nyu.edu/html/PatronCheck.html%3a%
> 3ASESSION_ID", "iwin",
> "width=550,height=450,scrollbars,resizable,status");
> }
> </script>
> <META HTTP-EQUIV="Refresh"
> CONTENT="0;URL=http://www.nyu.edu/library/bobst/database.htm";>
> </HEAD>
> <BODY onLoad="instruct()">
> <BR>
> </BODY></HTML>
> EOM
>
> $html =~s/SESSION_ID/$session_id/g;
> print $html;
> # or concat $html in another string using the '.' operator, etc.
>
> should do it.
>
> <explanation>
> TIMTOWDI -There is More Than One Way To Do It. If the content were more dynamic
> I would suggest anything from building it up with concatenation thru the use of
> Template modules.
>
> <<'EOM';
> is 'here' quoting; appropriate for multi-line strings.
> The single quotes around EOM mean 'don't interpolate'.
> The string is ended by EOM as the entire line (that means it is
> first in the line and there is nothing, not even space, after it).
>
> We can substitute in the HTML with confidence since most of the
> content of $html is known.
> </explanation>
>
> --Derek Lane
> dereklane@pobox.com
>
=====================
Eric L. Stedfeld
Info Tech Specialist
NYU Libraries
212 995-3545
eric.stedfeld@nyu.edu