AW: looking for a smart approach to "sort" an array

Tiemo Hollmann TB toolbook at kestner.de
Fri May 5 12:34:21 CEST 2017


Nice idea, much easier, as my idea
Thanks Mike!
Tiemo

-----Ursprüngliche Nachricht-----
Von: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] Im Auftrag
von Mike Bonner via use-livecode
Gesendet: Freitag, 5. Mai 2017 11:47
An: How to use LiveCode <use-livecode at lists.runrev.com>
Cc: Mike Bonner <bonnmike at gmail.com>
Betreff: Re: looking for a smart approach to "sort" an array

It might be easiest to just have a single separate key that contains the
user sorted list, then use the data of that key itself to access the rest of
the array.

So if you have 5 keys, word1,word2,word3,word4,word5, but the user orders
them in reverse, your sorted words single key would contain
word5
word4
word3
word2
word1

Then to get everything back out in the right order one could use a repeat
for each line repeat loop on that key like so.

repeat for each line tKey in myArrayA["sortedWords"]
    -- do whatever with each one myArrayA[tKey].....
end repeat

On Fri, May 5, 2017 at 3:30 AM, Tiemo Hollmann TB via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Hello,
>
> I have a list field of words and a correspondent array with the words 
> of the field as the keys plus some data per key. I can store the array 
> in a file, read it later from file and rebuild the list of words from 
> the keys of the array. Up to now, I had this list of words 
> alphabetically sorted. So it was easy, when reloading the array to 
> sort the list always alphabetically to refresh the visible list in the 
> field.
>
> The user can also create a custom sequence of the words in the field 
> by drag and drop the lines in individual order. Now I am looking for a 
> smart approach to keep the same sort order in the correspondent array. 
> I need the custom sort order of the words in case I reload the array 
> later from file to get the same sequence of words as the user has 
> sorted them, after extracting the words from the array. The key of the 
> array has to keep the words from the list for accessing the data in 
> the array.
>
> As far as I see it, I have to add an additional item to the array 
> data, storing the sort sequence of the keys, while the user creates 
> his custom sequence of the words in the list field and keeping this 
> number always synchronous to the line number of the fields list. So I 
> could use this "sort sequence number" from the array to rebuild the 
> same sort of the words when extracting the words from the array.
>
> Would this be the best approach to keep the sort sequence of the words 
> stored with the array, or do you see an easier more straight forward 
> approach to keep the array "synchronous sorted" which I don't see 
> right now?
>
> Thanks for your input
>
> Tiemo
>
>
>
>
>
>
>
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