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MiddleSeparator ( text ; separator ; startOccurrence ; endOccurrence )

Returns the characters in text counting between the position of the specified start occurrence of the separator to the specified end occurrence of the separator.

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Kurt Otto - Show more from this author ottopiaDESIGN http://ottopia.dyndns.org/

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

Case ( //Error checking startOccurrence < 1 ; "" ; // startOccurrence must be 0 or more endOccurrence ≤ startOccurrence ; "" ; // endOccurrence cannot be less than or the same as startOccurrence endOccurrence > PatternCount ( text ; separator ) ; "" ; // endOccurrence cannot be greater than the total occurrences of the separator PatternCount ( text ; separator ) < 2 ; "" ; // Not enough occurrences of separators Middle ( text ; Position ( text ; separator ; 1 ; startOccurrence ) + 1 ; Position ( text ; separator ; 1 ; endOccurrence ) - Position ( text ; separator ; 1 ; startOccurrence ) - 1 ) ) Click to copy

Format
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MiddleSeparator ( text ; separator ; startOccurrence ; endOccurrence )

Parameters
----------
text - any text expression or text field.
separator - any text expression or text field representing the set of characters you want to find.
startOccurrence - any numeric expression or field containing a number, representing the start instance of the text string you want to find.
endOccurrence - any numeric expression or field containing a number, representing the end instance of the text string you want to find.

Data type returned
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text

Description
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Returns the characters in text counting between the position of the specified start occurrence of the separator to the specified end occurrence of the separator.

Examples
--------
MiddleSeparator ( "aaa:bbb:ccc" ; ":" ; 0 ; 2 ) returns ""
MiddleSeparator ( "aaa:bbb:ccc" ; ":" ; 1 ; 2 ) returns bbb
MiddleSeparator ( "aaa:bbb:ccc" ; ":" ; 1 ; 3 ) returns ""

 

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