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POHow do I separate error handling from business logic in Perl?
 

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  1. POHow do I separate error handling from business logic in Perl?
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    <p>How do I separate out exception handling / error handling from business logic? I'm writing code in Perl, and the error/exception handling and business logic makes it very difficult to understand code while reviewing.</p> <p>How can I refactor my code to make it more readable yet have error handling. Also note that I do not use try catch or anything like that.</p> <p>One of our senior programmers suggested that we re open OS standard error and write everything there and we can catch it by the caller.</p> <p>Edit : here is how I do the error handling . I have many Perl modules.. so <code>check2.pm</code> </p> <pre><code>package check2; sub printData { print STDERR "Error Message from sub routine \n"; } 1; </code></pre> <p>and i use it like so in my Perl script , <code>check.pl</code> </p> <p>In my Perl script </p> <pre><code>#!/usr/bin/perl use LoadModules; use strict; use warnings; load check2; my $stderrholder; local *SAVEERR; # First, save existing STDERR open SAVEERR, "&gt;&amp;STDERR" or print "not able to open"; close STDERR; # Open the STDERR to a variable open STDERR, "&gt;", \$stderrholder or die "Failed to reopen STDERR $!\n"; #Start of processing # Now print something to STDERR, redirected to $ stderrholder print STDERR " Error Message from Main script \n"; check2::printData(); #End of processing # Now close and restore STDERR to original condition. close STDERR; #open STDERR, "&gt;&amp;SAVEERR"; # Now check if there were any processing errors. if(length($stderrholder)) { print "\nProcessing errors\n" ; if(length($stderrholder)) { print "\nProcessing errors\n" ; print $stderrholder; } else { print "\nNo Processing errors\n" ; } </code></pre> <p>Would really appreciate if someone could help me point out errors in this.</p>
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    1. COSo this is not related to programming? Man, SO is getting worse by the day..
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    2. COThe vote may have been more a testament to the tone of the question than its content.
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