On exercise 8.2 from Learning Perl 3rd there is this regex:   /"([^"]*)"/ This is supposed to match a simple double-quoted string like "hello", but not "hello"you" (nor "hello\"you"). The only problem is that it is matching the latters. I tried it like this:   /"([^a]*)"/ and well enough, it wouldn't match any word that contained an a in it (ie: "wilma"), so what am I'm missing? PS: I should add that one-liner does work:   perl -wle '$a = "hello\"you";if ($a =~ /"([^"]*)"/){ print "yes"}else{print "no"}' Just not on the script which adds to the weirdness of it...

Edit by dws for code tags and clearer title


In reply to Problem with regex from Learning Perl (3rd edition) by slocate

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.