Speaking of Filter and Match...
J. Landman Gay
jacque at hyperactivesw.com
Tue Mar 15 13:00:38 EDT 2022
Good idea, thanks Dick. Your scripts are always so elegant.
Jacqueline Landman Gay | jacque at hyperactivesw.com
HyperActive Software | http://www.hyperactivesw.com
On March 14, 2022 7:11:13 PM Dick Kriesel via use-livecode
<use-livecode at lists.runrev.com> wrote:
> Since order must be maintained, it’s probably faster not to split and sort,
> and faster not to scan the list repeatedly using lineOffset or contains.
> You could do it like this:
> command removeDuplicates pDelimitedList, pDelimiter
> local tArray, tList
> set the lineDelimiter to pDelimiter
> repeat for each line tLine in pDelimitedList
> if not tArray[tLine] then -- i.e., if this line hasn't appeared already,
> then ...
> put true into tArray[tLine]
> put tLine & pDelimiter after tList
> end if
> end repeat
> delete last char of tList
> return tList for value
> end removeDuplicates
> — Dick
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