expr applet bug?

[Luciano Miguel Ferreira Rocha]

On Fri, Dec 08, 2006 at 08:13:35PM +0100, Cristian Ionescu-Idbohrn wrote:
> There seems to be a bug in expr (both 1.1.3 and svn):
> 
>   # ./busybox expr xyz0 : '[^0-9]\+\([0-9]\+\)'
> 
> returns 0 on stdout and an error code 1.
> 
>   # ./busybox expr xyz1 : '[^0-9]\+\([0-9]\+\)'
> 
> returns 1 on stdout and an error code 0.
> 

I get the same behaviour from GNU's expr. What behaviour did you expect?

-- 
lfr
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