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Is this a bug? Why not?

X-seq: zsh-workers 27848
From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
To: zsh-workers@xxxxxxx
Subject: Is this a bug? Why not?
Date: Tue, 30 Mar 2010 22:46:12 -0700
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macadamia% print $ZSH_VERSION $ZSH_PATCHLEVEL
4.3.10-dev-1 1.4947
macadamia% print ${var-???}
CVS Doc Etc Src
macadamia% print ${${var}-???}

macadamia% print ${${var}+???}
CVS Doc Etc Src
macadamia% print ${${var}:-???}
CVS Doc Etc Src
macadamia% print ${${var}:+???}

macadamia%

Follow-Ups:
- Re: Is this a bug? Why not?
  - From: Phil Pennock

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