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Re: [Bug-apl] Substring replacement in APL

From: Jay Foad
Subject: Re: [Bug-apl] Substring replacement in APL
Date: Tue, 12 Apr 2016 12:18:12 +0100

replace←{(⍴v)↓∊(⊂v),¨(↑⍴u)↓¨(+\u⍷a)⊂a←u,⍺⊣(u v)←⍵}


On 12 April 2016 at 11:39, Elias Mårtenson <address@hidden> wrote:
> I had a need to to replace substrings with a replacement, and I'm having a
> hard time coming up with an concise solution. What I need to do is this:
>       'foobartestfootest' replace 'foo' 'xy'
> Should yield:
>       'xybartestxytest'
> Any suggestions?
> Regards,
> Elias

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