Brian Dunning's FileMaker Custom Functions

TrimAt ( text ; delimiter ; occurrence )

returns all text preceding the specified occurrence of the specified delimiter

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Jeff Drake   Jeff Drake
Drakeling Technologies

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  Sample input:
TrimAt ( "Mississippi" ; "i" ; 3 )
  Sample output:
Mississ

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

This function acts like Left, but uses the Position of the specified delimiter as a point of reference. If the occurrence parameter is:

• a positive integer, the value returned will be all characters preceding that occurrence of the delimiter, moving forwards from the first character of the original text.

• a negative integer, the value returned will be all characters preceding that occurrence of the delimiter, moving backwards from the last character of the original text.

• Any other value returns an empty string.

 

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