Hi. The standard way of dealing with "die" is to place an "eval" around the code you call which might call die, and check the $@ special variable to see if die was called. for example, if the function "read_pdf" has a die somewhere inside it, and you want to safely call it, instead of 

  my $pdf = read_pdf("foo.pdf");

[download]
try 
  my $pdf;
  eval {
     $pdf = read_pdf("foo.pdf");
  };
  if ($@) {
     #read_pdf called die, handle error gracefully..
  }
  ...

[download]

This is the perl-way of doing "throw" and "catch" -- think of die as "throw" and eval as "catch".
NB: That semicolon after the eval block is important, and easy to miss. (It separates the "eval" from the "if" -- otherwise the parser will think the if is a postfix if, and you'll get a parse error).

Hope this helps...

-Jonathan

In reply to Re: Life after DIE by jsegal
in thread Life after DIE by whisp

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.