On Ubuntu, perl 5.8.7 and on W32, AS Perl 5.8.8 my debug help says:

b [ln|event|sub] [cnd] Set breakpoint

On the linux box, man perldebug provides similar guidance. Are you sure about your b $var?

In any case, it occurred to me that setting the breakpoint to the line number INSIDE your ANONYMOUS sub would be worth trying.

And, lo and behold, doing so causes my debugger to behave as expected. I believe that since the sub is anonymous, we can't b sub_name (and, of course, the preceding line, calling the sub is not breakable).

Update: fixed square brackets

In reply to Re: b $var by ww
in thread b $var 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.