Re: bash evaluation change...

[Toshio Kuratomi]

On Wed, Mar 02, 2011 at 04:03:18PM -0700, Nathanael D. Noblet wrote:
>  Hello while trying to build a package of mine on F15 I ran into 
>  configure issues. They stem from a change in how bash evaluates case 
>  statements. My test script: http://fpaste.org/6zuv/
>  
>  F14:
>  
>  -Z!!!
>  = x
>  X1
>  X1.1         <--- evaluates to No Match for F15
>  xyes2
>  xyes3
>  
>  
>  F15:
>  
>  -Z!!!
>  = x
>  X1
>  No match1.1   <--- evaluates to X1.1 on F14
>  xyes2
>  xyes3
>  
>  Is this a regression that should be reported to bash? Or is this 
>  expected and should be fixed in my package? You'll notice that the if 
>  test methods continue to function in the same manner.
>   
Simpler reproducer:

case x"" in
  x) echo 'expected'
     ;;
  x??) echo 'this would be really odd'
     ;;
  x?) echo 'does this prove anything?'
      echo x""x
     ;;
  *) echo 'no match'
     ;;
esac

=> does this prove anything?
   xx

I'd say, report this as a bug and see where it leads.  It's certainly not
expected behaviour even if it is intentional.

-Toshio