In an experiment that involved abusing Perl quite badly, I discovered the "try/catch" method explored1 in The Camel Book, which implements a pseudo-C++ style of error checking and recovery. The usage is paraphrased here: 
     try {
          die "screaming";
     } catch {
          /screaming/ and print "Stop screaming.\n";
     };

[download]
This is implemented using the ability of Perl to have anonymous subs passed as parameters to functions, provided they have a compatible prototype2 such as sub try(&$){}.

Implementation details aside, has anyone used this try/catch method in Perl to any significant degree, or is there an alternative methodology that is more dependable? Just curious. Exceptions (i.e. die) in C++ are quite interesting. I am thinking that this might be used, for example, to more reliably trap DBI errors in Web applications.

Or, of course, I might be completely delusional.
1. "Programming Perl", Chapter 2 - Prototypes
2. For some reason, you can only have the function as the first operator in your prototype, which works fine for map, grep, and what have you, but is strangely rigid considering the broader scope of Perl.

In reply to Error Checking: Have you tried 'Try/Catch'? by tadman

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.