Hi sundialsvc4,

chengchl's question was essentially: how can I use the flip flop operator and pick up only the second START .. END block of text.

Even assuming your suggested code were correct Perl code (which it isn't) and would run, it still wouldn't do what the OP was asking for, but only mimic the flip flop operator.

The flip flop operator has a somewhat surprising edge-case behavior (when exactly is it reset) which might justify writing explicit code, but your code (if it worked) would not do what was asked for.

Update: s/would do what/would not do what/;. Thanks to hippo for noticing the missing negation at the end of my last sentence above. Now fixed.


In reply to Re^2: [Solved]Need to extract a particular block of lines between two patterns by Laurent_R
in thread [Solved]Need to extract a particular block of lines between two patterns by chengchl

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.