Howdy!
I'm having a time using filters and not sure if what I am doing is wrong (if
anything). I am just using the sample in the documentation. I should also
mention the standard caveats: I searched the Archives first and the examples
looked like mine. Also, I should mention that I am using Win2K and IIS 5.
I am not sure if this is the issue again or not. I receive a 200 header
status and no output from debug.
Another ?: Can you create a filter to deal with form/user input too? Is
that what the "removing_spaces" filter in the documentation is meant to do?
YA?: What does the "$$" mean in $$test_ref. I know that $$ is used to
retrieve the process number. I looked in the documentation and several Perl
Books including "Programming Perl" but did not find a reference to this in
the book.
Thanx, Jeff.
PS - The function(s) work fine and I could just use them instead. I just
wanted to see what a filter did and what you could do with them.
Anyway, here is the code:
my $filter = sub {
my $text_ref = shift;
$text_ref =~ s/!!!ZAP_(.*?)!!!/<TMPL_$1>/g;
$$text_ref;
## Also Tried Adding "return $text_ref;" - No Difference.
};
sub test_function {
##my $str1 = shift;
my ($str1, $str2) = @_;
my $strTest = qq~Hi this is some text: '$str1-$str2'.~;
return $strTest;
}
my $tmpl = HTML::Template::Expr->new(
filename => 'filter2.tmpl',
die_on_bad_params => 0,
associate => $cgi,
filter => $filter,
functions => {
test_func => \&test_function
},
debug => 1
);
$tmpl->param( FOO => 'Try My Filter!~#$%');
Here is the Template portion:
Howdy: !!!ZAP_VAR NAME="FOO" !!!.<BR>
Here is the result displayed by the browser:
Howdy: !!!ZAP_VAR NAME="FOO" !!!.
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