Re: ${a[(i)pattern]} if a=()

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

On Mar 16, 10:59am, Bart Schaefer wrote:
}
} The patch is trivial and all tests still pass.

Here's a test for that patch.  Also fixes the previous test which
declared an empty array but then referenced an undefined variable.
Or at least I think what I changed is what the test really meant.
I won't commit this (or 24718) without some confirmation.

Index: Tests/D06subscript.ztst
===================================================================
--- Tests/D06subscript.ztst	26 Nov 2007 17:38:14 -0000	1.8
+++ Tests/D06subscript.ztst	16 Mar 2008 18:44:20 -0000
@@ -178,11 +178,15 @@
 >lower
 >upper
 
-  typeset -a empty_array
-  echo X${${l##*}[-1]}X
+  typeset -ga empty
+  echo X${${empty##*}[-1]}X
 0:Negative index applied to substition result from empty array
 >XX
 
+  print $empty[(i)] $empty[(I)]
+0:(i) returns 1 for empty array, (I) returns 0.
+>1 0
+
   array=(one two three four)
   print X$array[0]X
 0:Element zero is empty if KSH_ZERO_SUBSCRIPT is off.