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FileMaker Pro Custom Functions

matchListAB( ListA ; ListB; match_Value; match_operator ; getN )

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Bruce Robertson, Concise Design
http://concise-design.com

Returns items from ListB where corresponding value of ListA meet condition. Option to return item position instead.

Sample Input:
 Let([ ListA = "9¶8¶1¶2¶3¶4"; ListB = "9A¶8A¶1A¶2A¶3A¶4A"; matchValue = "3"; matchop = ">=" ]; MatchlistAB( ListA; ListB; matchValue; matchop; 1 ) )
Sample Output:
 1 2 5 6

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

Description:

Returns list of items from listB where cfMatch result is 1 for corresponding value of ListA

If ListB is empty then items from ListA are returned where cfMatch result is 1
If getN is 1 (or greater) then instead of returning the matching item, its position in the list is returned.
ListB can be empty; but otherwise an error is returned if valueCount ListB < valueCount ListA.

Dependent on custom function cfMatch
Recursive function

Bruce Robertson - Concise Design
Last updated 1/31/2010

Examples
Let([
ListA = "9¶8¶1¶2¶3¶4";
ListB = "9A¶8A¶1A¶2A¶3A¶4A";
matchValue = "3";
matchop = ">=" ];
MatchlistAB( ListA; ListB; matchValue; matchop; 0 )
)
RESULT:
9A
8A
3A
4A

Let([
ListA = "9¶8¶1¶2¶3¶4";
ListB = "9A¶8A¶1A¶2A¶3A¶4A";
matchValue = "3";
matchop = ">=" ];
MatchlistAB( ListA; ListB; matchValue; matchop; 1 )
)
RESULT:
1
2
5
6

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

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