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 04:30:38 EST 2021

Hi folks,
Please can anyone advise on the correct syntax for trying to find the first non-tab character offset in a string, as 'offset(not(tab), tString)’ seems to be returning strange results - i.e. a number but not the correct one?


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