Problematic change in alias behavior in pre3

["Bart Schaefer" <schaefer@xxxxxxxxxxxxxxxxxxxxxxx>]

Here's zsh 3.0-pre2:

zsh% alias show="noglob show"
zsh% function show() { show=(); show=( $~* ); print -rc $show }
zsh% show **/Make*
Doc/Makefile              Makefile                  StartupFiles/Makefile
Doc/Makefile.in           Makefile.in               StartupFiles/Makefile.in
Etc/Makefile              Misc/Makefile             Util/Makefile
Etc/Makefile.in           Misc/Makefile.in          Util/Makefile.in
Functions/Makefile        Src/Makefile
Functions/Makefile.in     Src/Makefile.in

(The point here is to set $show to the result of the glob only if the glob
succeeds, and otherwise to set it to empty.  I use cshnullglob.)

Here's pre3:

zsh% alias show="noglob show"
zsh% function show() { show=(); show=( $~* ); print -rc $show }
zsh: parse error near `)'
zsh% show=()
zsh: parse error near `)'
zsh% unalias show
zsh% function show() { show=(); show=( $~* ); print -rc $show }
zsh% 

Why does the existence of the alias mess up the variable assignment?

-- 
Bart Schaefer                             Brass Lantern Enterprises
http://www.well.com/user/barts            http://www.nbn.com/people/lantern

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