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From: Bart Schaefer <schaefer@brasslantern.com>
Message-id: <141010203135.ZM32246@torch.brasslantern.com>
Date: Fri, 10 Oct 2014 20:31:35 -0700
In-reply-to: <20141011003817.GA2786@localhost.localdomain>
Comments: In reply to Han Pingtian <hanpt@linux.vnet.ibm.com>
 "Re: (s) splitting - is there any way to provide "dynamic" separator" (Oct 11,
  8:38am)
References: <5436A310.7040101@gmail.com>
	<141009184525.ZM29875@torch.brasslantern.com>	<5437856D.3050700@gmail.com>
	<20141011003817.GA2786@localhost.localdomain>
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Subject: Re: (s) splitting - is there any way to provide "dynamic" separator
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On Oct 11,  8:38am, Han Pingtian wrote:
}
} % a=11::22:33;print -l ${(ps.\0.)a//:/$'\0'}
} 11
} 22
} 33
} % a=11::22:33;print -l "${(ps.\0.)a//:/$'\0'}"
} 11$''$''22$''33
} %
} 
} Looks like $'\0' in double-quotes is converted to $'' and it doesn't equal
} to \0 ?

Although it looks like an expansion, $'...' is actually a form of quotes,
and therefore cannot be used inside a double-quoted string.

The \0 is actually being removed by "print -l".  Add the -R option:

torch% a=11::22:33;print -l -R "${(ps.\0.)a//:/$'\0'}" 
11$'\0'$'\0'22$'\0'33
torch%