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UNIX for Dummies Questions & Answers
multiple conditions in if/then
Post 302081048 by grandtheftander on Friday 21st of July 2006 01:58:31 PM
07-21-2006
Last edited by grandtheftander; 07-21-2006 at 03:20 PM..
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LEARN ABOUT CENTOS
devel::cover::truth_table
Devel::Cover::Truth_Table(3) User Contributed Perl Documentation Devel::Cover::Truth_Table(3) NAME
Devel::Cover::Truth_Table - Truth tables for coverage objects. VERSION
version 1.03 SYNOPSIS
use Devel::Cover::Truth_Table; # $a || $b my $or_tt = Devel::Cover::Truth_Table->new_primitive('or_3', 0, 1, 1); # $c && $d my $and_tt = Devel::Cover::Truth_Table->new_primitive('and_3', 1, 0, 1); # merge contents of $and_tt into right column of $or_tt, to create # $a || ($c && $d) $or_tt->right_merge($and_tt); # get a (sorted) textual representation my @text = $or_tt->sort->text; print "$_ " foreach @text; __END__ A B C |exp|hit -------------- 0 0 X | 0 |--- 0 1 0 | 0 |--- 0 1 1 | 1 |+++ 1 X X | 1 |+++ -------------- DESCRIPTION
This module provides methods for creating and merging conditional primitives ("$a && $b", "$c || $d", etc.) into more complex composite expressions. METHODS
new_primitive($op, @coverage) Create a new truth table based on one of the built-in primitives, which are the subclasses of Devel::Cover::DB::Condition. $op is one of the following: and_3 "and" or "&&" with three conditional paths. or_3 "or" or "||" with three conditional paths. or_2 "or" or "||" with two conditional paths. (i.e., when the right hand side of the expression is a constant) xor_4 "xor" with four conditional paths. @coverage is a list booleans identifying which of the possible paths have been covered. sort() Sorts a truth table (in place) and returns the sorted object. text() Format a truth table to an array of strings for printing. html() Format a truth table in HTML. error() percentage() Determines the proportion of possible conditions that have coverage. right_merge($sub_table) Merge entries from $sub_table into right column of table. left_merge($sub_table) Merge entries from $sub_table into left column of table. SEE ALSO
Devel::Cover BUGS
None that I'm aware of... LICENSE
Copyright 2002 Michael Carman <mjcarman@mchsi.com> This software is free. It is licensed under the same terms as Perl itself. The latest version should be available from: http://www.pjcj.net perl v5.16.3 2013-05-20 Devel::Cover::Truth_Table(3)