blairell

I've bumped into this problem a few times, and the limitations of the expr object seriously can annoy when i need an AND statement ment in there.

does anyone know an easy way of achieving this?

if-then-else-how-about-and

yeah thats right. does that work? because if it does it isn't in my manual!

yeah thats right.  does that work?  because if it does it isn't in my manual!

I searched for this functionality before, didn't know [if] could do it. Thanks!

This seems to have worked for my needs...

if (($f1 > $f2) &&( $f1 > $f3)) then send Test bang

I was hoping to do nested if/then/else statements, but instead had to split them up over a few objects instead.

Max uses C-syntax throughout expr and if and sprintf and a bunch of other places. C-syntax is '&&'. 'AND' is sort of COBOL or SQL or Pascal. And what's the object called that does 'logical and'?

It might be helpful if the documentation made this explicit in every single place, but in the meantime it's something to look out for and get used to. It's also been discussed on the list dozens of times. At least now you know;-

Quote: Peter Castine wrote on Wed, 20 February 2008 18:05

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And what's the object called that does 'logical and'?

Quote: Peter Castine wrote on Wed, 20 February 2008 18:05
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And what's the object called that does 'logical and'?

One should never answer rhetorical questions.

is it possible to use sprintf or expr or something else to compare if two symbols are equal and then produce an output?

If numbers, you can use == comparison operator

For string, you could try jasch strcmp external...

Quote: blairell wrote on Thu, 21 February 2008 22:55

> is it possible to use sprintf or expr or something else to compare if two symbols are equal and then produce an output?

Quote: blairell wrote on Thu, 21 February 2008 22:55
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> is it possible to use sprintf or expr or something else to compare if two symbols are equal and then produce an output?
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the first example doesn't compare if two strings are equal, it just sets an output based on if an input equals a predefined result.

the shampoo/dandruf example is close, but a bit dangerous because it doesn't have split inputs, so if a string get sent from the same source twice it will return true when it probably shouldn't. but with a bith of fiddling it will work! thanks

the shampoo/dandruf example is close, but a bit dangerous because it doesn't have split inputs, so if a string get sent from the same source twice it will return true when it probably shouldn't.  but with a bith of fiddling it will work!  thanks


an other solution would be to convert characters into into integers using [atoi] and compare the resulting list of numbers.

[L==] from Peter Elsea's set is handy for that.

Quote: blairell wrote on Thu, 21 February 2008 23:55

> the first example doesn't compare if two strings are equal, it just sets an output based on if an input equals a predefined result.

> the shampoo/dandruf example is close, but a bit dangerous because it doesn't have split inputs, so if a string get sent from the same source twice it will return true when it probably shouldn't. but with a bith of fiddling it will work! thanks

o ok i see
an other solution would be to convert characters into into integers using [atoi] and compare the resulting list of numbers.
[L==] from Peter Elsea's set is handy for that.
[vexpr] does logical operations as well

Quote: blairell wrote on Thu, 21 February 2008 23:55
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> the first example doesn't compare if two strings are equal, it just sets an output based on if an input equals a predefined result.
>
> the shampoo/dandruf example is close, but a bit dangerous because it doesn't have split inputs, so if a string get sent from the same source twice it will return true when it probably shouldn't.  but with a bith of fiddling it will work!  thanks
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if, then, else, how about AND?