No, I don't think it is a bug. glob returns a list

This is the bug, that it returns a list in scalar context, and the docs don't warn about it.

perldoc -f glob says

In list context, returns a (possibly empty) list of filename expansions on the value of EXPR such as the standard Unix shell /bin/csh would do. In scalar context, glob iterates through such filename expansions, returning undef when the list is exhausted.

...

Beginning with v5.6.0, this operator is implemented using the standard "File::Glob" extension. See File::Glob for details, including "bsd_glob" which does not treat whitespace as a pattern separator.

use File::Glob ':glob'; overrides glob (csh_glob) with a function that behave differently in scalar context (bsd_glob), and the documentation dosn't warn you explicitly.

making bsd_glob DWIM in scalar context is trivial (just copy/paste from csh_glob)

fixing the pod is equally trivial.

No, I'm not contemplating filing a bug report, Gulliver should :)

In reply to Re^2: File::Glob infinate loop with while loop unlike core glob function by Anonymous Monk
in thread File::Glob infinite loop with while loop unlike core glob function by Gulliver

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.