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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <151119111749.ZM8874@torch.brasslantern.com>
Date: Thu, 19 Nov 2015 11:17:49 -0800
In-Reply-To: <CAKc7PVCZzEfKkcWyPUb58ffmne6E8Eh6_CDpeLc0efd6hEQAow@mail.gmail.com>
Comments: In reply to Sebastian Gniazdowski <sgniazdowski@gmail.com>
        "Read file with escaped newlines into array" (Nov 19,  6:34pm)
References: <CAKc7PVCZzEfKkcWyPUb58ffmne6E8Eh6_CDpeLc0efd6hEQAow@mail.gmail.com>
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To: zsh-users@zsh.org
Subject: Re: Read file with escaped newlines into array
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On Nov 19,  6:34pm, Sebastian Gniazdowski wrote:
}
} fc -W stores history to a given file. It escapes newlines with \. How
} to read such file into array and have "\^M" lines put back together
} into single array entries?

The best way is probably to use the history mechanism to read it:

    () { fc -ap -R the_given_file ; the_desired_array=( ${history} ) }

Although the docs don't yet say so, the special associative array
$history is not implemented as a hash table, so the entries are
guaranteed to be in a fixed order from most recent (largest history
number) to longest ago.  Which is the reverse of the way you'd read
them from the file, so you might want ${(Oa)the_desired_array} when
referencing.