common code patterns

Mike Kerner MikeKerner at roadrunner.com
Thu Aug 10 17:15:25 EDT 2017


So back to my original question, and my original comment - you're talking
about macros?  See my first reply.

On Thu, Aug 10, 2017 at 5:02 PM, Richard Gaskin via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Monte Goulding wrote:
> > Sorry folks I should have been more specific and said using existing
> > syntax. So the original thing posted is what I’m after at the moment:
> >
> > local tIndex
> > put 1 into tIndex
> > repeat for each line tLine in tLines
> >    — code
> >    add 1 to tIndex
> > end repeat
>
> Except that's wrong. :)
>
> I tend to use 0 as the initial value, and increment at the top of the loop:
>
>   local tIndex
>   put 0 into tIndex
>   repeat for each line tLine in tLines
>       add 1 to tIndex
>       — code
>   end repeat
>
> I've found two benefits from this habit:
>
> 1. (minor) Clearer distinction between unincremented and incremented
> counter.
>
> 2. (major) I can "next repeat" at any point in the block and know that the
> counter is appropriately updated.
>
> Indeed, it was a runaway loop many years ago that set me know this path.
>
>
> All this raises a bigger question:  can we for now provide some sparse
> minimums and perhaps consider adding more later if truly needed?
>
> Saves work for you folks, and obviates the need to have what would likely
> be really long threads here about different coding styles (or whether all
> possible styles should be supported in Prefs  - "Damnation to the dangling
> 'thens'!" <g>).
>
> --
>  Richard Gaskin
>  Fourth World Systems
>  Software Design and Development for the Desktop, Mobile, and the Web
>  ____________________________________________________________________
>  Ambassador at FourthWorld.com                http://www.FourthWorld.com
>
>
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