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

Keith Clarke keith.clarke at
Thu Jan 21 05:34:08 EST 2021

Thanks Dick, this would definitely work - and I’m iterating through characters and lines anyway as I attempt to prettify a long data string for eased human readability. 
I was just keen to understand why offset wasn’t happy with the ‘not(tab)’ in this instance.

> On 21 Jan 2021, at 10:25, Dick Kriesel via use-livecode <use-livecode at> wrote:
>> On Jan 21, 2021, at 1:30 AM, Keith Clarke via use-livecode <use-livecode at <mailto:use-livecode at>> wrote:
>> Please can anyone advise on the correct syntax for trying to find the first non-tab character offset in a string
> Hi, Keith.  You could test each character until you find a tab:
> function offsetOfNotTab pString
> local i
> repeat for each char tChar in pString
>    add 1 to i
>    if tChar <> tab then return i
> end repeat
> end offsetOfNotTab
> — Dick
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