You should be able to inherit from Tie::Handle (part of the
standard distribution) and override any methods you wish to
define yourself:
package MySTDOUT;
use Tie::Handle;
@ISA = qw/Tie::Handle/;
sub TIEHANDLE {
my $class = shift;
bless {}, $class;
}
package main;
tie *STDOUT, 'MySTDOUT';
For example, maybe you want to trap every call to STDOUT
and prefix each argument with a string of your own:
package MySTDOUT;
use Tie::Handle;
@ISA = qw/Tie::Handle/;
sub TIEHANDLE {
my $class = shift;
bless {}, $class;
}
sub PRINT {
my $self = shift;
my $caller = caller;
print STDERR map "$caller: $_", @_;
}
package main;
tie *STDOUT, 'MySTDOUT';
print "Foo";
Prints
main: Foo
Take a look at the Apache module and Apache::Filter for
some examples of tying STDOUT.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|