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human ordering sorting challenge for skill

Ejlersen

Hi 

I've numerous times come across the issue of sorting strings in a more "human way of thinking fashion" 

I've played around with the different sorting predicates like 'lessp, 'alphaNumCmp, 'axlStrcmpAlpNum but none are really sorting in the way I would need. I had hoped the 'axlStrcmpAlpNum would do what I wanted, but mixed strings are a challenge.

Example (end sorting result that I would like)

"22" 

"111234" 

"111237"

"111a32"

"112323" 

"11235a" 

"11235f"

"abc211"

"xyz211"

I've come across some LISP code for this, but must admit that although I've done a lot of skill programming the code at the link below are a bit "black magic like" for me, it does not translate directly into a skill program

rottcodd.wordpress.com/.../  

So maybe someone could shed som light on how to transform this into something usefull in Skill.

Hint:  www.davekoelle.com/alphanum.html has a number of other language implementations for the same type of sorting, it actually explain and illustrate the problem very nicely.

Thank you very much in advance

Best regards

Ole 

Parents

  • Hi Olivier

    Thank you for your input on this, I got some code from a long time friend that I've been able to convert into something that can be used.

    I'll try your method to figure out if that works better for me. I'll however need to check for length since any length text must be after numbers, so "aa" will be after any string starting with a number.

    I'm in the same boat as you with numbers to strings, only aware of sprintf. 

    Best regards

    Ole 

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  • Hi Olivier

    Thank you for your input on this, I got some code from a long time friend that I've been able to convert into something that can be used.

    I'll try your method to figure out if that works better for me. I'll however need to check for length since any length text must be after numbers, so "aa" will be after any string starting with a number.

    I'm in the same boat as you with numbers to strings, only aware of sprintf. 

    Best regards

    Ole 

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