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From: Bart Schaefer <schaefer@brasslantern.com>
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Date: Tue, 23 Jun 2015 13:17:06 -0700
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Comments: In reply to Mikael Magnusson <mikachu@gmail.com>
        "Re: Typeset with array" (Jun 23,  7:52pm)
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To: "Zsh Hackers' List" <zsh-workers@zsh.org>
Subject: Re: Typeset with array
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On Jun 23,  7:52pm, Mikael Magnusson wrote:
}
} This isn't really related to this series, but I noticed it now for the
} first time; what's the deal with the space at the end of associative
} arrays in typeset -p output?

With a normal array, the number of elements is known, so you know when
you've reached the last one and can skip printing the space after it.

When traversing a hash table, you don't know if you've reached the last
element until you've passed it; it's more straighforward to print out
("%s %s ", key, value) for every element than to keep track of whether
you are past the first element but not yet at the last one.

If I were going to "fix" it for no reason other than the consistency,
I'd simply add MORE spaces rather than try to squash that one.

typeset -a a
a=( b )
typeset -A b
b=( b c )