I'm currently doing this in .NET C# (which you couldn't know), where i can't eval like that, so a regex substitution /$1$2/ would eat both commas, like 
   "41,42,43" -> "4143"

[download]
Any plain vanilla regex to do it ?
/allan

In reply to Re^2: Howto strip 42 from comma separated list using s/// by ady
in thread Howto strip 42 from comma separated list using s/// by ady

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