You might want to test your ideas about do{ STMTs }while( EXPR );. The while() condition actually is tested at the end of the loop, ensuring that the body of the loop is always run at least once.

The 'problem' with it is that it isn't a "loop" as far as next, redo, and last are concerned (due to somewhat obscure implementation details).

But it is a construct I find useful, not just some redundant alternative to while( EXPR ){ STMTs } and STMT while EXPR; (which both test before each iteration).

- tye        

In reply to Re^4: Comment a block that match a keyword (do) by tye
in thread Comment a block that match a keyword by yorkwu

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.