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FindRepetition ( searchString ; repeatingField ; start ; occurrence ; end ; partialMatch ; matchCase )

Calculates the repetition number where a search string can be found in a repeating field

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Peter Wagemans - Show more from this author Lesterius https://www.lesterius.com

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Let ( theString = GetRepetition ( repeatingField ; start ) ; Case ( start > end ; 0 ; PatternCount ( theString ; searchString ) = 0 ; FindRepetition ( searchString; repeatingField ; start + 1 ; occurrence ; end ; partialMatch ; matchCase ) ; partialMatch = 0 and theString <> searchString ; FindRepetition ( searchString; repeatingField ; start + 1 ; occurrence ; end ; partialMatch ; matchCase ) ; partialMatch = 0 and matchCase <> 0 and not Exact ( theString ; searchString ) ; FindRepetition ( searchString; repeatingField ; start + 1 ; occurrence ; end ; partialMatch ; matchCase ) ; partialMatch <> 0 and matchCase <> 0 and ( not FindRepetition ( searchString; Middle ( theString ; Position ( theString ; searchString ; 1 ; 1 ) ; Length ( searchString ) ); 1 ; 1 ; 1 ; 0 ; 1) ); FindRepetition ( searchString; repeatingField ; start + 1 ; occurrence ; end ; partialMatch ; matchCase ) ; occurrence <> 1 ; FindRepetition ( searchString; repeatingField ; start + 1 ; occurrence - 1 ; end ; partialMatch ; matchCase ) ; start ) ) Click to copy

FindRepetition ( searchString; repeatingField; start; occurrence; end; partialMatch; matchCase )

Because of the complexity of this custom function, an example file can be downloaded.
searchString: the string that is searched
repeatingField: a repeating field
start: the repetition from where to start searching
end: the repetition where to stop searching
occurrence: the nth repetition that matches the search criteria
partialMatch: 0 = equal, 1 = contains
matchCase: case sensitive search

 

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