# New List Based On Portion Of List

## Domino Resources - Part 6

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Here is a fairly useful method of using formula language to pick out values
from a list of multiple values based on matching a "portion" of each element
without using a view.

Say you original list "List1" contains the following:

List1 := "Apples|Fruit|\$1.25" : "Oranges|Fruit|\$1.10" : "Peas|Vegatable|\$0.55"
: "Bannanas|Fruit|\$1.50" : "Tomatos|Debatable|\$0.95"

You want to create a new list of only those elements that are fruit.
List1 := "Apples|Fruit|\$1.25" : "Oranges|Fruit|\$1.10" : "Peas|Vegatable|\$0.55"
: "Bannanas|Fruit|\$1.50" : "Tomatos|Debatable|\$0.95"

List2 := @Word(List1;"|";2);
List3 := @Replace(List2; "Fruit"; "");
List4 := List1 + List3;
List5 := @Replace( List1; List4; "");
List6 := @Trim(@Replace(List1; List5; ""));

Now "List6" contains the final list and can be used like this:

@Word(List6;"|";1) + " - " + @Word(List6;"|";3)

giving you a fruit list like this -

Apples - \$1.25
Oranges - \$1.10
Bannana - \$1.50

*********************************
Optional Description of each step:
List1 - Original List
List2 - List of the second "words" in each element (Fruit, Fruit, Vagetable,
Fruit, Debatable)
List3 - List of seconnd words in element with one we want to keep Null
(,,Vegetable,Debatable)
List4 - Original List with "word 2" appended to change the elements we don't
want
Apples|Fruit|\$1.25
Oranges|Fruit|\$1.10
Peas|Vegatable|\$0.55Vegetable
Bannanas|Fruit|\$1.50
Tomatos|Debatable|\$0.95Debatable
List5 - Replaces the words that didn't change with Null to make a mask of what
to remove
,,Peas|Vegatable|\$0.55,,Tomatos|Debatable|\$0.95
List6 - (Final List) Use the mask to Null what we don't want and trim results
to remove Nulls from list.
This was last published in November 2000

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