That code doesn't compile.

Assuming it did compile, one way to do what you're asking is this:

while( CONDITION_A ) {
  if( CONDITION_B ) {
    # DO SOMETHING
    last; # Exits loop immediately.
  }
}

[download]

The last keyword is discussed in perlsyn and last. Some languages would call it break.

While I'm not among them, there are purists of structured programming who would advise against such short circuits as next, and last. They would prefer you jump through hoops such as this:

my $found = 0;
while( CONDITION_A && ! $found ) {
  if( CONDITION_B ) {
    # DO_SOMETHING
    $found = 1;
  }
  else {
    # BLAH BLAH
  }
}

[download]

In specific cases, such hoops may be able to be rendered less wordy. Either way, it's all just a matter of programming. ;)


Dave

In reply to Re: regex 1st match only by davido
in thread regex 1st match only by ArifS

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.