Best Practices in Rev development

[Joe Lewis Wilkins]

I guess it's like sex. You have to try out all the positions to  
recognize their attributes. Hmn! Am I allowed to say something like  
that? But I can certainly see your point of view. (smile)

Joe Wilkins

On Jun 21, 2007, at 11:31 AM, Devin Asay wrote:

> Joe,
>
>
>> On Jun 21, 2007, at 11:02 AM, Stephen Barncard wrote:
>>
>>> for me a great advantage of SWITCH is the opportunity for fast  
>>> and easy multiple if statements done this way instead:
>>>
>>> SWITCH pKey
>>> CASE "B"
>>> CASE return
>>> CASE "P"
>>> printThePage
>>> default
>>> doDefaultThing
>>> END SWITCH
>>>
>>> easy to read, easy to write.
>
> On Jun 21, 2007, at 12:07 PM, Joe Lewis Wilkins wrote:
>
>> I agree, much cleaner and easier to follow and write, so long as  
>> you don't forget to exit each of the case statements so as not to  
>> have subsequent ones executed as well. I believe this is a feature  
>> in Rev, though I'd prefer if it weren't.
>
> Until this week I might have agreed with you--the concept that a  
> case statement would automatically match subsequent cases unless  
> you explicitly add a 'break' command seemed bothersome and obscure.  
> But then I began making some changes to a scheduling program I am  
> working on. I wanted to do one thing if the scheduled event fell in  
> the 1st or 2nd week of the month and something else if it fell in  
> the 3rd or 4th week and something else still if it fell in the 5th  
> week.
>
> I could have said
>
> switch tWeeknum
> case 1
>   doThing1
>   break
> case 2
>   doThing1
>   break
> case 3
>   doThing2
>   break
> case 4
>   doThing2
>   break
> case 5
>   doThing3
>   break
> end switch
>
> Instead, I was able to use the very quick and readable:
>
> switch tWeeknum
> case 1
> case 2
>   doThing1
>   break
> case 3
> case 4
>   doThing2
>   break
> case 5
>   doThing3
>   break
> end switch
>
> It was the first time I'd found this feature useful, and now I'm  
> really glad it's there. Suddently the 'break' statements don't seem  
> so irksome.
>
> Regards,
>
> Devin