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 FileMaker Pro Custom Functions

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InsertValue ( list ; value ; index )

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  Average rating: 3.9  (35 votes)
  Discuss this Custom Function

Theo Ros, n/a
n/a

Returns a list with value 'value' inserted at position 'index'

Sample Input:
InsertValue ( "John¶Paul¶Ringo" ; "George" ; 3 )
Sample Output:
"John¶Paul¶George¶Ringo"


 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:

Returns a list with value 'value' inserted at position 'index'

Syntax: InsertValue ( list ; value ; index )

In: list - the return delimited list to search
value - the stringvalue to insert
index - the position (1-...) where the new value should go
If left empty or an integer value greater than the
total size of the list, the new value will be added
at the very end of the list. If <= 1 the value will
added at the beginning of the list.

Return type: Text (a list with leading and trailing returns removed)

InsertValue ( "John¶Paul¶Ringo" ; "George" ; 3 ) --> "John¶Paul¶George¶Ringo"

Theo Ros

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:

using the leftWords function to "Trim" line returns means this will also THROW AWAY any "non-word" characters ( like colons, etc ) from the inserted value

Erik, New York
July 22, 2013 8:06am

(Did my comment not go through? Trying again...)

A long time later...In addition to Erik's comments, another non-word character that gets dropped is the negative/minus sign. This makes it not work if you are dealing with a list of numbers that includes negative values.

I have modified the above custom function so that it will fix both Erik's and my issues. This has NOT BEEN HEAVILY TESTED for various corner-cases. It worked for my numbering needs, and I ASSUME it will work for Erik's cases.

I have utilized another custom function in this re-write: "Trim4()", which removes stray whitespace characters from the start and back end of strings. I use it to remove the trailing char(13)/"¶" character that FM's various "leftvalues()" style functions append. (Grrr...) I have also reformatted things a bit and renamed the parameters to fit my style.
-------------------

Syntax: InsertValue ( aList ; aVal ; atIndex )

------------------
Let ( [
~val = Trim4 ( LeftValues ( aVal ; 999999999 ) )
; ~List = Trim4 ( LeftValues ( aList ; 999999999 ) )
; ~valCount = ValueCount ( ~List )
] ;
Case ( ~ValCount = 0 ; ~val ;
IsEmpty ( atIndex ) or atIndex > ~valCount ; ~List & "¶" & ~val
; atIndex < 2 ; ~val & "¶" & ~List
; Trim4 ( LeftValues (
Trim4 ( LeftValues ( ~List ; atIndex - 1 ) & ~val & "¶" & MiddleValues ( ~List ; atIndex ; 999999999 ) )
; 999999999
) )
)
)

Justin Close, Salem, OR
August 03, 2017 10:50am

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