# Sorting Arrays

J. Landman Gay jacque at hyperactivesw.com
Fri Aug 11 18:00:22 EDT 2023

```On 8/10/23 2:29 PM, Alex Tweedly via use-livecode wrote:
> Combining my "traditional" way as above, and your example, I came up with a  simpler way to do
> the same thing:
>
>> on simpleSortNumberedArray @pArrayDataA, pSortKeys
>>    local tKeys, tSeq, tOneSortKey, tSortCommand
>>    put seqAsLines(pArrayDataA) into tKeys
>>    repeat with I = the number of items in pSortKeys down to 1
>>       put item I of pSortKeys into tOneSortKey
>>       put "sort lines of tKeys" && word 2 to -1 of tOneSortKey && \
>>             "by pArrayData[each][" && word 1 of tOneSortKey && "]" into tSortCommand
>>       do tSortCommand
>>    end repeat
>>    rebuildSeq pArrayDataA, tKeys
>> end simpleSortNumberedArray
>>
>> function seqAsLines pSeq
>>    local tRes
>>    repeat with i = 1 to the number of elements in pSeq
>>       put i & CR after tRes
>>    end repeat
>>    return tRes
>> end seqAsLines
>>
>> command rebuildSeq @pSeq, pList
>>    local tResQ, tCount
>>    repeat for each line L in pList
>>       put pSeq[L] into tResQ[tCount]
>>    end repeat
>>    put tResQ into pSeq
>> end rebuildSeq

I couldn't get this to work until I altered it, but I was using a very simple array. What type
of array data did you use? I think I'm missing something.

I just did this:

put the weekdayNames into tDataA
split tDataA by cr
simpleSortNumberedArray tDataA, "descending,text"

For that array, this worked:

on simpleSortNumberedArray pArrayDataA, pSortKeys
local tKeys, tSeq, tOneSortKey, tSortCommand
put seqAsLines(pArrayDataA) into tKeys
repeat with I = the number of items in pSortKeys down to 1
put item I of pSortKeys into tOneSortKey
--    put "sort lines of tKeys" && word 2 to -1 of tOneSortKey && \
--      "by pArrayDataA[each][" && word 1 of tOneSortKey && "]" into tSortCommand
put "sort lines of tKeys" && tOneSortKey into tSortCommand
do tSortCommand
end repeat
rebuildSeq pArrayDataA, tKeys
end simpleSortNumberedArray

function seqAsLines pSeq
local tRes
--  repeat with i = 1 to the number of elements in pSeq
repeat for each element e in pSeq
put e & CR after tRes
end repeat
return tRes
end seqAsLines

command rebuildSeq @pSeq, pList
local tResQ, tCount
repeat for each line L in pList
--    put pSeq[L] into tResQ[tCount]
put L into tResQ[tCount]
end repeat
put tResQ into pSeq
end rebuildSeq

--
Jacqueline Landman Gay         |     jacque at hyperactivesw.com
HyperActive Software           |     http://www.hyperactivesw.com

```