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Re: concat with separators ?

From: Jean-Christophe Helary
Subject: Re: concat with separators ?
Date: Sun, 28 May 2017 14:33:44 +0900

> On May 24, 2017, at 23:34, Clément Pit-Claudel <address@hidden> wrote:
>> I just realized today that concat did not come with optional separators 
>> (unlike mapconcat). Is there a reason for that ?
>>> I just using mapconcat when I feel that need:
>>> Example:
>>> (mapconcat #'identity '("a" "b" "c") "|")  => "a|b|c"
>> That's roughly the definition of string-join in subr-x:
>> (defsubst string-join (strings &optional separator)
>>  "Join all STRINGS using SEPARATOR."
>>  (mapconcat 'identity strings separator))

Would it be acceptable to provide separators to concat or is it preferable to 
use string-join instead?


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