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Re: Simple String question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg110698] Re: Simple String question
  • From: "Christoph Lhotka" <lhotka at axp.mat.uniroma2.it>
  • Date: Fri, 2 Jul 2010 07:27:18 -0400 (EDT)

hi,

I would solve it by writing my own sort function:

sortfoo = (StringJoin @@ # & /@ (Sort /@
          IntegerDigits /@ ToExpression /@ StringSplit[#, " "] /.
         n_Integer :> ToString[n]) // Sort) /. {x_String, y_String} :>
      x <> " " <> y &;

here is a tester function:

With[{foo =
   ToString[RandomInteger[{100, 999}]] <> " " <>
    ToString[RandomInteger[{100, 999}]]},
 {foo -> sortfoo[foo]}]

regards,

christoph

On 02/07/2010 08:54, S. B. Gray wrote:
> I have strings like foo="623 715". foo will always be 3 digits, space, 3 
> digits. I need to put each set of digits in numerical order and then put 
> the two triples in order. This would give 157 236. There must be a 
> simple way to do this, but I see nothing under string sorting.
>
> Steve Gray
>
>
>




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