error handling

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

Hello everyone I am trying to write a simple script spawning a batch file from a perl script and I would like to return errorlevel from that batch. I am trying to use the error.pm and running into some syntax errors. Here is what I have. Perhaps another set of eyes could help.

use Error qw(:try);

  try {
    
    `$create_script $input`; #code that might thrown an exception;
    
    return;
  }
  catch Error with {
    my $error_handler = shift;   # Get hold of the exception object
  }
  exit;
[download]

Thank you in advance, help is appreciated.

2005-02-16 Janitored by Arunbear - added code tags, as per Monastery guidelines

Comment on error handling Download Code

Replies are listed 'Best First'.
Re: error handling by TedYoung (Deacon) on Feb 16, 2005 at 15:43 UTC
What is the syntax error? Make sure you put a semicolon (;) after your catch Error with {} statement. This is a statement, not a block construct like if and while. use Error qw(:try); try { `$create_script $input`; #code that might thrown an exception; return; } catch Error with { my $error_handler = shift; # Get hold of the exception object }; # <-- Semicolon exit; [download] Ted Young `($$<<$$=>$$<=>$$<=$$>>$$) always returns 1. :-)`	[reply] [d/l] [select]
Re: error handling by RazorbladeBidet (Friar) on Feb 16, 2005 at 15:39 UTC
Try putting your code into <code> blocks... like this: use Error qw(:try); try { `$create_script $input`; #code that might thrown an exception; return; } catch Error with { my $error_handler = shift; # Get hold of the exception object } exit; [download] As it is, I don't see any "syntax" errors with that. However: 1) There is no need to "return" from the try block 2) No output will be captured. If you want the actual output from the script captured, do this: my $output = `$create_script $input` If you want the return code, you need to check out the system call.	[reply] [d/l] [select]
Re: error handling by Anonymous Monk on Feb 16, 2005 at 18:02 UTC
You guys have been great!!! Looks like the system call works just fine.	[reply]