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

[Keith Clarke]

Thanks Brian. I looked at matchChunk in the dictionary & it seems to return a boolean, rather than the offset. 

Thanks all - I’ve stopped trying to find the syntax for ‘find any char but this’ in offset and instead, taken Dick’s advice to iterate through the chars and count the loops until char <> tab. :)
Best,
Keith     

> On 21 Jan 2021, at 14:03, Brian Milby via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> You could also use matchChunk with a regular expression that excludes the tab character.
> 
> Sent from my iPhone
> 
>> On Jan 21, 2021, at 7:14 AM, Keith Clarke via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> 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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