Hmmm, when I try to create a hash similar to the one that you suggested, it just runs the routines...I am new to perl, so I'm not sure if I typed something in wrong or not.
Program outputs
Welcome
Ending Program
Died at.....
I must have mis-understood what you were trying to explain with the hash.
use strict;
my $input;
my %commands;
my $cmd;
my %commands = (
greeting => \&greeting(),
quit => \&end_program(),
);
chomp( $input = <STDIN> );
my( $cmd, @args ) = split( /\s+/, $input );
if( defined( $commands{ $cmd } ) ) {
$commands{ $cmd }->( @args );
}
sub greeting {
print "Weclome\n";
}
sub end_program {
print("Ending Program\n");
die;
}
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.