I'm sorry that my reply put you in such a defensive mindset about your code that you skipped the part where I explained the cause of your problem because I pointed out several other problems as well and I now see that I started every sentence that explains the problem with a pointer to another problem as well.

Let me repeat the essential part of my above reply:

... you are falling into the trap that backticks act like double quotes and all your backslashes get interpreted in the first round of backslash interpretation by Perl and never get seen by sed. Hence one solution could be to double all your backslashes to make sure that sed sees them.

In reply to Re^3: sed regexp works on the command line, but not from Perl script by Corion
in thread sed regexp works on the command line, but not from Perl script 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.