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Re: New array_expand_once option


From: Chet Ramey
Subject: Re: New array_expand_once option
Date: Mon, 19 Jun 2023 13:40:37 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.12.0

On 6/17/23 7:58 AM, alex xmb ratchev wrote:


On Thu, Jun 15, 2023, 20:40 alex xmb ratchev <fxmbsw7@gmail.com <mailto:fxmbsw7@gmail.com>> wrote:



    On Thu, Jun 15, 2023, 15:06 Chet Ramey <chet.ramey@case.edu
    <mailto:chet.ramey@case.edu>> wrote:

        On 6/14/23 5:18 PM, alex xmb ratchev wrote:

         >     [[ -v a["$subscript"] ]]


a small question about that .. do the quotes matter ?

For `[[', no. For `[', yes, since the subscript undergoes a round of word
expansion, including word splitting, before `[' is invoked.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/




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