How to find the offset of the first character in a string that's not a tab?

[Keith Clarke]

Ah yes indeed, I’d forgotten I could test with 'put not(tab)’ in the message box - that certainly proves the syntax was wrong! :-)
Best,
Keith

> On 21 Jan 2021, at 10:49, Dick Kriesel via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> 
> 
>> On Jan 21, 2021, at 2:34 AM, Keith Clarke via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
>> I was just keen to understand why offset wasn’t happy with the ‘not(tab)’ in this instance.
> 
> expression "not(tab)" evaluates to true, which doesn’t serve your purpose
> 
> — Dick
> 
> 
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