Using the eval works great for matches : $pattern = eval "qr$pattern" or die $@; But of course, when I do a 'substitution pattern' s///, it fails because it looks like eval "qrs/stuff/morestuff/. So I tried adding a bang, to wrap around the interpolated variable in the original : $pattern = eval "qr!$pattern!" or die $@; But now my patterns fail to match anything. Example:
s/Bill Clinton/The ex-President/gi on Bill Clinton is the ex-President
+. bill clinton. results in Failure.

[download]

In reply to Re^2: qr// and user provided regex patterns... by misterMatt
in thread qr// and user provided regex patterns... by misterMatt

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.