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Date: Tue, 23 Aug 2016 16:54:16 +0100
From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: Lawrence =?iso-8859-1?Q?Vel=E1zquez?= <vq@larryv.me>
Cc: acs@alumni.princeton.edu, ethersoft@gmail.com, zsh-workers@zsh.org
Subject: Re: Help with associative arrays
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2016-08-21 17:18:11 -0400, Lawrence Velázquez:
[...]
>         The second difference is that a double-quote (`"') may appear as
>         part of a subscript expression without being preceded by
>         a backslash....
[...]

An annoying consequence is that (contrary to with ksh93) you can't do:

a[""]=foo

To assign an element for the empty key. You have to do things
like:

a[${}]=foo

or

a+=('' foo)

instead.

It would be nice if one could do:

a[]=foo

(which currently returns an error)

Note that it's a lot worse in bash. bash associative arrays
can't have an element with an empty key!

-- 
Stephane