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Re^2: General pattern for interactive text-mode script?

by wazoox (Prior)
on Jul 04, 2008 at 10:38 UTC ( #695550=note: print w/replies, xml ) Need Help??


in reply to Re: General pattern for interactive text-mode script?
in thread General pattern for interactive text-mode script?

Hu, this breaks strictures, better use code references :
use strict; use warnings; my $state = \&start; while (my $next = $state->()) { $state = $next; } sub start { ...get input... if (/1/) { return \&menu_1 } elsif (/2/) { return \&menu_2 } ... } sub menu_1 { ... } sub menu_2 { ... }
By the way instead of chaining multiple if () {} blocks, using a dispatch table is more efficient and looks nicer:
use strict; use warnings; my $state = \&start; while (my $next = $state->()) { $state = $next; } sub start { my %next_action = ( 1 => \&menu_1, 2 => \&menu_2, 3 => \&menu_3, ); return $next_action{$_} if exists $next_action{$_} }

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