View member feedback to this tip.
@Member finds a value's first position in a text list. This formula finds all positions of a string. It works for lists with up to 99 elements.
Code
_listToSearch := "a":"b":"c":"b":
"b":"a":"c":"b";
_searchString := "c";
@if(@Elements(_listToSearch)=0;
@return(0);"");
_digits:="0":"1":"2":"3":"4":"5":"
6":"7":"8":"9";
_0_to_99 := _digits *+ _digits;
_1_to_99 := @Subset(_0_to_99; -99);
_1_to_numOfElements:=@Subset
(_1_to_99; @Elements(_listToSearch));
_list1:= _listToSearch + _1_to_numOfElements;
_list2 := _searchString + _1_to_numOfElements;
_list3 := @Replace(_list1;_list2;"");
_list4 := @Replace(_list1;@Trim(_list3);"");
_positionsString:=@Replace(@Trim
(_list4);_list2; _1_to_numOfElements);
_position :=@If(_positionsString="" ;
0;
@TextToNumber(_positionsString)
);
_position
MEMBER FEEDBACK TO THIS TIP
Another way, rather than trying to keep track of all those @Replace calls, is to use @Right:
_listToSearch := "a":"b":"c":"b":"b":"a":"c":"b";
_searchString := "c";
_digits:="0":"1":"2":"3":"4":"5":"6":"7":"8":"9";
_0_to_99 := _digits *+ _digits;
_1_to_99 := @Subset(_0_to_99; -99);
_1_to_numOfElements:=@Subset
(_1_to_99; @Elements(_listToSearch));
_list1:= _listToSearch + _1_to_numOfElements;
REM "<-- New code starts here -->";
_locs := @Trim(@Right(_list1; _searchString));
_position := @If(@Elements(_locs) = 0;
@Replace(_locs; ""; "Not found");
@Subset(_locs; -1));
_position
-- SearchDomino.com member
**************************************************
I wished I'd had this formula about six months ago! (And why couldn't I come up with it myself!?!) This one is definitely a keeper! Thanks!
-- Jo R.
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Using @Right instead of @Replace is not a correct substitution for this task:
If you start with the list
_listToSearch := "a":"b":"xc":"b":"b":"a":"xc":"b";
you will get the same result as using
_listToSearch := "a":"b":"c":"b":"b":"a":"c":"b"
-- Lothar F.
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If you need to work on lists with more than 99 elements, just replace the list that is hold in var "_1_to_99" ("1":"2":.......:"99") with a list that is long enough for your needs; for example, "_1_to_999" ("1":"2":.......:"999")
This is all you need to change!
-- Joachim Rapp
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