CHECKING IF HEADER DEFINED

FRIENDOFGOD has asked for the wisdom of the Perl Monks concerning the following question:

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Re: CHECKING IF HEADER DEFINED by GrandFather (Saint) on Jul 30, 2010 at 21:54 UTC
Most CGI related modules print their output so you could: `my $savedOutput; open my $saveOutput, '>', \$savedOutput; my $oldStdOut = select $saveOutput; # Call CGI stuff here select $oldStdOut; close $saveOutput; # process $savedOutput to clean up duplicate headers and other foibles + here print $savedOutput; # Output the cleaned up CGI output text` [download] True laziness is hard work	[reply] [d/l]
Re: CHECKING IF HEADER DEFINED by Corion (Patriarch) on Jul 30, 2010 at 21:47 UTC
You can't know what headers have been printed. You need to keep track of all headers yourself. Also, there is no need to yell.	[reply]
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Re: CHECKING IF HEADER DEFINED by planetscape (Chancellor) on Jul 31, 2010 at 00:50 UTC
Look For God Is She lost? HTH, planetscape	[reply]
Re^2: CHECKING IF HEADER DEFINED by Anonymous Monk on Jul 31, 2010 at 01:07 UTC
Cthulu may wear makeup, but that doesn't make him female.	[reply]
Re: CHECKING IF HEADER DEFINED by trwww (Priest) on Jul 30, 2010 at 22:50 UTC
It looks to me like you are using a poorly engineered home grown web app framework and you've got it bursting at the seams. You should check out CGI::Application, a whole host of problems like this one simply disappear.	[reply]
Re^2: CHECKING IF HEADER DEFINED by DrHyde (Prior) on Aug 02, 2010 at 11:16 UTC
And after checking out CGI::Application, you should choose not to use it. It's just a way of replacing a long if/elsif/elsif/else statement with some different and equally verbose boilerplate. IMO it's pointless.	[reply]
Re^3: CHECKING IF HEADER DEFINED by Anonymous Monk on Aug 02, 2010 at 11:42 UTC
It's just a way of replacing a long if/elsif/elsif/else statement with some different and equally verbose boilerplate. IMO it's pointless. Nope, CGI::Application is a way of modularizing your code by splitting it up into screens (one sub per screen/action). Not having to write a giant if/elsif/elsif/else to separate your screens is a huge timesaver. Very pointy	[reply]
Re^4: CHECKING IF HEADER DEFINED by DrHyde (Prior) on Aug 04, 2010 at 16:18 UTC
Re^5: CHECKING IF HEADER DEFINED by trwww (Priest) on Aug 06, 2010 at 07:26 UTC
Re: CHECKING IF HEADER DEFINED by Your Mother (Archbishop) on Jul 30, 2010 at 23:32 UTC
This is a possibility in some (sloppily/disparately coded) cases but only if you're using CGI to do your headers already. `use CGI; $CGI::HEADERS_ONCE = 1;` [download] (Sidebar: your user name is, of course, up to you but please change your sig block. This is not a place of worship for anything but Perl.)	[reply] [d/l]
Re^2: CHECKING IF HEADER DEFINED by GrandFather (Saint) on Jul 31, 2010 at 00:39 UTC
This being a Perl Monastery the bible is The Camel Book so the path to Godliness being sought is surely perfection on Perl coding. Bearing that in mind the OP's sig is most apposite and to be lauded. He is obviously shouting for the sake of the pure joy in his journey. ;-) True laziness is hard work	[reply]