Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

Well, Obviously it's somewhat slower to load:

$ time perl -MGetopt::Std -e 1 0.07user 0.00system 0:00.07elapsed 97%CPU $ time perl -MGetopt::Long -e 1 0.19user 0.05system 0:00.23elapsed 102%CPU $ time perl -MGetopt::Declare -e 1 0.59user 0.08system 0:00.67elapsed 99%CPU

For the option parsing itself, that'll depend on how much extra work you put into the declaration (action blocks, more sophisticated parameter checking, etc.). Certainly it isn't the option-processing answer to every problem, but if it's easy to code and read and the startup/parse hit (amortized over runtime) isn't crucial, it is certainly worth looking into. It won't compete with Getopt::Std for efficiency on simple things, but there's a boatload of functionality I didn't mention -- here's the clustering example from the docs:

For example, given the parameter specifications: -+ Swap signs -a Append mode -b Bitwise compare -c <FILE> Create new file +del Delete old file +e <NICE:i> Execute (at specified nice level) when com +plete The following command-lines (amongst others) are all exactly equivalen +t: -a -b -c newfile +e20 +del -abc newfile +dele20 -abcnewfile+dele20 -abcnewfile +e 20del

Also: optional parameter lists, abbreviations, mutex directive (only one of a given set of options may appear on the command line). And, it can be told to parse a config file rather than @ARGV, and can return the parser object itself so you could use it to parse multiple such sources. There might even be a kitchen sink in the source somewhere, and you never know when one of those will come in handy.

In reply to Re: Re (tilly) 1: Getopt::Declare by danger
in thread Getopt::Declare by danger

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others chilling in the Monastery: (5)
    As of 2015-11-27 17:07 GMT
    Find Nodes?
      Voting Booth?

      What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

      Results (731 votes), past polls