Dear Monks,

I am getting some strange errors from URI::Escape and assume that I must be something stupid. I am getting the following errors in Apache's log file: 

Use of uninitialized value in subroutine entry at /usr/local/lib/perl5
+/site_perl/5.6.1/URI/Escape.pm line 140.
[Fri Apr 12 14:16:18 2002] [error] Can't use string ("") as a subrouti
+ne ref while "strict refs" in use at /usr/local/lib/perl5/site_perl/5
+.6.1/URI/Escape.pm line 140.
 
Possible unintended interpolation of @aol in string at (eval 187) line
+ 1.

[Fri Apr 12 14:28:22 2002] [error] uri_escape: Global symbol "@aol" re
+quires explicit package name at (eval 187) line 1.
 at /usr/local/apache/perl/some.cgi line 179
 
Possible unintended interpolation of @aol in string at (eval 185) line
+ 1.

[download]
The "@aol" appears nowhere in my code - it is part of an email address that some user is submitting. My code compiles and runs fine and uses both warnings and use strict - it works most of the time, but these errors sometimes occur.
Here are the relevant sections of my code which use URI::Escape (the param call is to Apache::Request) 

#a bunch of lines like the following to get POST'd data:
my $email      = uri_escape($apr->param('email'     ))||'';
my $customerid = uri_escape($apr->param('customerID'))||'';
#then get a ref to a hash of all posted values
#it's redundant, i know, but it serves a purpose
my $values     = $apr->param;

#later, to construct a redir, this hack:
my $base_url   = "http://foo.com/somecgi?";
 
my $middle     = join('&', 
                  map { 
                   $_ . "=" .uri_escape($values->{$_})
                  } keys %$values
                 );

my $tail       = "&FilePath=$cleanfilename&transfer_source=http";
my $redir      = $base . $middle . $tail;

# sub to construct a log string or submitted info
# anonymous to avoid warnings under mod_perl

my $err_log    =  sub {
    my $up     =  shift;

    my @vars   = (
                  $up, $clientb, $clientbv, $clientos,
                  $trckingnum, $customerid, $xferid,
                  $cgi,$customerid, $contactname,
                  $email,$phone,'htttp'
                 );

    my $string = join(',', 
                     map {"\"" . $_ . "\""} 
                     map {uri_unescape($_)} @vars
                   );
    $string   .= "\012";
 
    return $string;
};

[download]
It seems that somehow the strings that are being passed to URI::Escape, which eval's a regex in an anonymous subroutine, are being seen as code, specifically the "@" in email addresses, and causing an error - but only some of the time.

Environment is Apache 1.3.24 / mod_perl 1.26
Apache::Request 1.0
URI::Escape 1.18

Thanks for your help.

Edit kudra, 2002-04-16 Added readmore

In reply to incorrect use of URI::Escape? by Anonymous Monk

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