You might want to elaborate a little more on the actual regexes that you want to convert, and what program you will be feeding those converted regexes into. I think the reason no one has posted anything yet is that the most general case of a "perl regex" includes all manner of horrors that would be very difficult to translate properly, but are also not heavily used.

Offhand, it looks like anything that appears in the perlre documentation before the topic (?=pattern) should be tolerable to convert to the POSIX regex format in, for example, http://www.tin.org/bin/man.cgi?section=7&topic=regex. The expressions described after that point in perlre are likely to be difficult. On the other hand, all of them except the zero-width lookahead and lookbehind assertions are marked "experimental", so it's not unlikely that your particular RE's don't use any of those features.

In reply to Re: Perl regex to POSIX by quester
in thread Perl regex to POSIX by Sifmole

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.