Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl Monk, Perl Meditation
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
I've rewritten a script that works very similar to pidof for the use as a support script for a set of scripts.

I have written it as a standalone script because that is what it was before. However, I started thinking that it would be really cool to be able to call it as a module from another script as well as being able to use it from command line. The name of the script right now is 'npid'. Now, if npid had a package statement then simply detected its caller() (not sure if I can do that yet...gotta look up the docs on caller()) then I am thinking that this kind of thing is feasable. If the caller is a parent script then it works by returning the data to the caller and the caller prints it. Otherwise, it prints output in another format.

I am thinking that this would be the best way to go about this because if I call npid as a module then I'm not wasting resources on another instance of the interpretter while at the same time I am allowing the user to use this program from CLI without calling the support scripts to use it.

Is there something I am missing? Is this possible? Is it recommended? What are the snags?

_ _ _ _ _ _ _ _ _ _
- Jim
Insert clever comment here...


In reply to Possible to have a module act as a standalone?? by snafu

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, 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?
    Username:
    Password:

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

    How do I use this? | Other CB clients
    Other Users?
    Others meditating upon the Monastery: (3)
    As of 2019-07-21 02:45 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      If you were the first to set foot on the Moon, what would be your epigram?






      Results (7 votes). Check out past polls.

      Notices?