Zugg Software :: View topic - #IF, How to match Two patterns before Returning True

Novice Joined: 19 Jan 2008 Posts: 30

Hi, I checked pattern matching and can't figure it out, Let's say i want to match two variables, Ex...
#IF (@VARIABLE1=1 AND @VARIABLE2=2) {COMMAND} {IFNOT COMMAND}

What do i use in place of AND, in order for this to work, THANKS =D

Posted: Wed Mar 25, 2009 4:28 pm

The word 'and' will work just fine:

$a = 1
$b = 2

#if ($a == 1 and $b == 2) {#print True} {#print False}

Novice Joined: 19 Jan 2008 Posts: 30

THANKS A BUNCH!

GURU Joined: 23 Dec 2000 Posts: 4834 Location: USA

Surround your subconditions with parentheses. When I don't do stuff like this, I find that the result of one side will then be evaluated against half of the other side:

A = 1, B = 0

#if (A = 1 and B = 0) --> (A = 1 and 0) --> (A = 0) --> (0) --> Wrong! Not what I wanted!

#if ((A = 1) and (B = 0)) --> ((1) and (1)) = (1) --> Right!

Sometimes you won't need the parentheses, but I'm of the mind that keeping track of the when/when not like this is more trouble than simply always using parentheses.

Adept Joined: 04 May 2007 Posts: 292 Location: Boston

I thought to mention a couple foibles since the op began with an inquiry that answered itself. Excuse the poetics.

String comparisons are case sensitive, but you can force your data into upper or lower case before the conditional. This happens with %ismember() too.

#IF (%lower(%1)="something" AND %lower(%2)="anotherthing")

Sometimes you don't have input or a null thing that fools the conditional by making ZMud look at the weighed function as plain text. I got CMud mainly to escape the evolution that created !%null(%1), but still have that digital pachyderm in reserve in case I find myself naming 'if nests' batgirl as I seriously need heroics.

ZMud autotypes variables, on my journey into the deep nests I found mathematics was not always what I expected and number 1 was greater then number 3. Somehow I created the numbers as text, and against that needed %number(@OhVariable).

Just thought to say that in comparisons functions can be cranky and like people seem to associate with their own kind, though I think MattLofton said that in a practical way.

Adept Joined: 04 May 2007 Posts: 292 Location: Boston

double post