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tim6389 · Professional Member Joined: 01 Aug 2002 Posts: 790

hello all

I have a problem that i can't firgure out..i know there has to be a way to do this but i must be over looking something..

how to have a varible check to see if its "empty" if so do something else

i have tried equal, not equal, etc and i still get a erorr cuase the varible is empty Sad

thanks

Mac · Posted: Sun Feb 06, 2005 8:27 pm Post subject:

Hey tim,

If your var contains visible chars, ya can use:

if @not(%%myvar)
(true if var is empty)

or

if %%myvar
(true if var is not empty)

If a var only contains blanks etc. this does not work.

Cheers, Mac Smile

tim6389 · Professional Member Joined: 01 Aug 2002 Posts: 790

thanks but yea my varible does contain blanks Sad

looks like i will have to re-do this part of the script Sad

kOt · Posted: Sun Feb 06, 2005 9:17 pm Post subject:

if you mean this example

%a = "text text text"
or
%a =

couldn't you use

Serge · Last edited by Serge on Mon Feb 07, 2005 7:49 am; edited 1 time in total

don't worry - my browser is playing tricks Embarassed

Serge · Posted: Mon Feb 07, 2005 7:48 am Post subject:

what about to deal with cases where variable contains spaces,

Mac · Posted: Mon Feb 07, 2005 8:43 am Post subject:

The example I posted works unless the variable contains
nothing but blanks, tabs etc. such as:

%%myvar = " "

I never thought about @null() Serge, but it appears
to detect empty vars correctly. Wink

Cheers, Mac Smile

tim6389 · Professional Member Joined: 01 Aug 2002 Posts: 790

i forgot about null to Sad

thanks all this will help me alot Smile