Having a problem with _ArraySort

[autoitfan]

I have an array containing song titles

I tried to sort with _ArraySort. One of the

titles is 12th Street Rag which appears

as 0 (a numeric zero) in the sorted output.

Numbers within a title beginning with an

alpha character don't appear to cause

any problems.

I could not find a documented restriction to

the effect that alphanumeric array content

must begin with an alpha character.

When I change the title to "Twelfth Street

Rag", _ArraySort generates perfectly

sorted output, but control of the titles

is not mine, so this is not an acceptable

bypass.

Is this a bug or just the way it works?

And, is there another way to sort an

array?

[GEOSoft]

I have an array containing song titles

I tried to sort with _ArraySort. One of the

titles is 12th Street Rag which appears

as 0 (a numeric zero) in the sorted output.

Numbers within a title beginning with an

alpha character don't appear to cause

any problems.

I could not find a documented restriction to

the effect that alphanumeric array content

must begin with an alpha character.

When I change the title to "Twelfth Street

Rag", _ArraySort generates perfectly

sorted output, but control of the titles

is not mine, so this is not an acceptable

bypass.

Is this a bug or just the way it works?

And, is there another way to sort an

array?

How are you building the array and how are you calling _ArraySort()? You could be starting the sort on the wrong element. It's happened to me more than once. Edited January 28, 2008 by GEOSoft

[autoitfan]

How are you building the array and how are you calling _ArraySort()? You could be starting the sort on the wrong element. It's happened to me more than once.

Thank you for your response. The unsorted song titles are

contained in a simple flat file in the order they were added

to the file. They are simply read into an one dim array, one

title per element. Keep in mind that the sorted output is

correct except for the one title (12th Street Rag) that begins

with a numeric, the sorted output is correct except for that

single title which appears as a zero (0), and that simply

changing the "12" to "Twelf" results in sort output that is

perfect in every respect.

Paul

[GEOSoft]

Thank you for your response. The unsorted song titles are

contained in a simple flat file in the order they were added

to the file. They are simply read into an one dim array, one

title per element. Keep in mind that the sorted output is

correct except for the one title (12th Street Rag) that begins

with a numeric, the sorted output is correct except for that

single title which appears as a zero (0), and that simply

changing the "12" to "Twelf" results in sort output that is

perfect in every respect.

Paul

That didn't tell me exactly what I needed so I gambled and built the array with _FileReadToArray(). It works for me so I suspect the problem is in the way you called _ArraySort() You didn't check the parameters nor did you check to see if $Array[0] contained data from your file or the number of elements in the array. In the case of _FileReadTo Array it contains the number of elements. _Array Sort has a parameter for the sort start position which defaults to 0 so the size of your array also was sorted. and that would have place 12th Street Rag in position 0. You then called a loop starting at 1 "Ooooopps, Im missing a file!!". NOT. Change your _ArraySort() cal to the following and all will be well with the world again.

_ArraySort($array, 0, 1)

EDIT: Here is my complete test code if it helps

#include <file.au3>
#include <Array.au3>
$iFile = @desktopDir & "\test.txt"
$Array = ""
 _FileReadToArray($iFile, $array)
 _ArraySort($array, 0, 1)
For $I = 1 to Ubound($array) -1
   MsgBox(0, "Test", $Array[$I])
Next

Edited January 29, 2008 by GEOSoft