InList ( ListA ; ListB )

Will return a 1 if all items in list B are also in list A, otherwise returns 0

Average rating: 4.2 (20 votes) Log in to vote

Makah Encarnacao
Soliant Consulting
http://www.soliantconsulting.com/

Sample input:

InList ( "A¶B¶C¶D¶E¶F"; "C¶B¶A¶D" )

Sample output:

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

/* Created by Makah Encarnacao at Soliant Consulting
   soliantconsulting.com*/

Case( 
/*Last item is in the list*/
ValueCount( ListB) = 1 and PatternCo unt( ListA ; Substitute ( ListB; "¶"; "")) > 0; 1;

/*Last item is not in the list, return false*/
PatternCount( ListA; GetValue( ListB; 1))  = 0; 0;

/*Top item is in the list, let's check the next item*/
PatternCount( ListA; GetValue( ListB; 1)) > 0; 
InList( ListA; RightValues( ListB; ValueCount( ListB) - 1))
)

If you'd like to verify that all the items in one list are also in another list, this function will compare the lists for you. Similar to patterncount (), the first parameter is List A which is the list that will be searched, and the second parameter is List B, the filter list or search list that will be searched against List A.

Comments

		Richard DeShong, Logic Tools Mar 23, 2016
Hi Makah, noticed you named your function InList(), but then when you recursively called it, you used an underscore, _InList()

		unix, Japan Mar 23, 2016
How about FilterValues ( ListB ; ListA ) = FilterValues ( ListB ; ListB )

		Makah, Albuquerque, NM Mar 23, 2016
Thanks Richard for pointing that out! I have updated it.

		Andrew Jul 13, 2017
You have a space between "PatternCo unt" that needs to be removed

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

InList ( ListA ; ListB )

Comments

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