I don't know a lot about it, but it's my understanding that windows has a lot of functions where there is one version that takes paths with 1-byte characters and another version that takes paths with 2-byte characters. Using a program that calls the latter, you can make a file whose name isn't usable by a program the uses the former. Apparently the wide characters get replaced by a "?" when returned.

What you need to do is translate the name you get into a short name, or read through the directory getting short names instead of long ones. I'm sure there must be a Win32:: function to do this, or you could experiment with parsing the output of system 'dir /X "long name with ? wildcard"'


In reply to Re: Illegal charachters in windows filenames?? by ysth
in thread Illegal characters in windows filenames? by HamNRye

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.