Condtional parameters in handler calls
Dar Scott
dsc at swcp.com
Tue Jul 17 20:38:43 EDT 2012
One should remember that this evaluates both parameter options. For constants, this is not a problem but for terminating recursive functions, it can be fatal. The debugDo version might not be worth the work, but might be fun to talk about.
I often use 'get' in 'if', keeping the whole 'if' as simple as possible in situations like this. Sometimes, when it clarifies, I use a function that includes just the boolean as a parameter if the needed data is all script local.
Dar
On Jul 17, 2012, at 5:32 PM, Dick Kriesel wrote:
> Hi, Pete. You can wrap your "if" in a function, so any caller can have just one line.
>
> myCommand parm1,iff(<condition>,<parm2a>,<parm2b>),parm3
>
> function iff pBoolean,pTrueValue,pFalseValue
> if pBoolean then
> return pTrueValue
> else
> return pFalseValue
> end if
> end iff
>
> -- Dick
>
>
> On Jul 17, 2012, at 4:18 PM, Peter Haworth wrote:
>
>> I'm pretty sure this is not possible but it would be very cool if a
>> parameter to a command could be a conditiion something like:
>>
>> myCommand parm1,if <condition> then <parm2a> else <parm2b>,parm3
>>
>> I've tried every which way to do that but always get compile errors.
>>
>> Not possible, right?
>>
>> Pete
>> lcSQL Software <http://www.lcsql.com>
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>
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