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 FileMaker Pro Custom Functions

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joinRepeatingVariable ( variableName ; delimiter ; startIndex ; endIndex )

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  Average rating: 4.2  (13 votes)
  Discuss this Custom Function

Sam Barnum, 360Works
http://www.360works.com

Join / concatenate a repeating variable / array using a delimiter character

Sample Input:
joinRepeatingVariable("$$foo" ; ", " ; "" ; "")
Sample Output:
FOO, BAR, BAZ


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

Join a repeating variable / array with a delimiter, using recursion.

If endIndex is not specified or is negative, the recursion will exit on the first empty element in the array. Otherwise, empty elements will be included in the results until endIndex is reached.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

Discuss:

Also works for repeating fields!

Bruce Robertson, Redmond WA
March 14, 2011 5:00pm

The CF assumes that N for $var[N] is positive. Actually (unlike repeating fields) it can be zero; or negative; though it must always be an integer. In practice I suppose negative or zero values for N are rare.

Bruce Robertson, Redmond WA
March 14, 2011 5:06pm

Interesting point, Bruce. If this function were to support negative indices, the empty-arg approach would require a way to iterate backwards to find the first non-empty value. Currently if no startIndex is specified 1 is assumed.

Sam Barnum, San Francisco
March 14, 2011 5:13pm

Perfect. Thank you Sam!

David Walton, Wellfleet, MA
June 27, 2011 11:00am

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