It's possible to write something tremendously clever that does it all in a subroutine, but if you're debugging like that, just create a line like
print __FILE__ . " (" . __LINE__ . "): " . "(your variable names and values here)\n";
and copy it willy nilly, wherever needed. When you're tired of it, just comment it out .. you may end up needing it again.

This presumes that you can't use the Perl debugger to track down your problem. The debugger is a little intimidating, but it's a little cleaner and neater (not to mention way more flexible) to use when tracking down problems.

--t. alex

"Nyahhh (munch, munch) What's up, Doc?" --Bugs Bunny

Update Abigail's suggestion is much cooler -- it gets Perl to take care of the file name and line numbering detail.

It's really a preference between commenting out code that's no longer needed and just disabling it with the $debug flag. Your choice.


In reply to Re: Nervously....How do I access the Name of a Perl variable? by talexb
in thread Nervously....How do I access the Name of a Perl variable? by Anonymous Monk

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.