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Date: Mon, 13 Feb 2006 09:43:38 -0800
From: Wayne Davison <wayned@users.sourceforge.net>
To: Peter Stephenson <pws@csr.com>
Cc: Zsh hackers list <zsh-workers@sunsite.dk>
Subject: Re: PATCH: fixing ${1+"$@"} when word-splitting
Message-ID: <20060213174338.GC6952@dot.blorf.net>
References: <20060211181440.GA30984@dot.blorf.net> <200602122026.k1CKQHGH003629@pwslaptop.csr.com> <20060213105349.GD31780@dot.blorf.net> <EXCHANGE03NXLbrBmWU0000c118@exchange03.csr.com>
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On Mon, Feb 13, 2006 at 11:34:38AM +0000, Peter Stephenson wrote:
>   local IFS=.-
>   print -l ${=1:-1.2}
[...]
> but now gives
> 1.2

This is due to the multi_isarr weirdness:  when it is 0, multsub()
returns the resulting array joined with $IFS[0], which is what was
occurring here.  I added this line to fix the problem:

--- Src/subst.c	2006-02-13 09:25:18.000000000 -0800
+++ Src/subst.c	2006-02-13 09:30:33.000000000 -0800
@@ -347,6 +347,7 @@
 		if (!*x)
 		    break;
 		insertlinknode(&foo, n, (void *)x), incnode(n);
+		mult_isarr = 1;
 	    }
 	    switch (c) {
 	    case Dnull:

This makes sure that when we split the string into multiple pieces
before parsing it, it will be returned as an array.

..wayne..