|Think about Loose Coupling|
Re: Re: passing arguments in a dispatch tableby CharlesClarkson (Curate)
|on Apr 29, 2002 at 02:45 UTC||Need Help??|
Frankly, I think I need an object, but I'm reluctant to use one or a closure. I am introducing a dispatch table as a new concept on a perl beginners mailing list (PBML on Yahoo!). The original script used @book as a global variable. I changed it to $friut for the example above.
I haven't added the response yet. I do a ton of editing before replying, so I'm still able to scrap this approach.Currently, I'm here:
It's a direct move from a group of if - elsif blocks that did the same thing. That's why I'd like to call the subs the same way now. I can introduce better concepts in later posts. I consider this an intermediate approach. Later, $dispatch will be passed to process()as well (which is why I use a hash reference instead of a hash). To help with processing the search menu. $book is reference to @book initally taken from a flat file. memoize immediately comes to mind, but too many beginners shun modules and I don't want to lose my audience.
I initially scrapped an idea of using a BEGIN block. Perhaps I could combine the two and grab the array reference in each subroutine as someone else mentioned. Though I find using the dispatch table as a source for the arguments that are passed more powerful.
Charles K. Clarkson
Clarkson Energy Homes, Inc.