Empty string in char. keyword

[Sebastian Jester <jester@mpia-hd.mpg.de>]

Hi,

 how do I specify an empty string in a character keyword in a .prg?

DEFINE/LOCAL ROOT/C/1/180
!makes ROOT contain a "?":
WRITE/OUT ",{ROOT},"
,?,

DEFINE/LOCAL ROOT/C/1/180 ""
WRITE/OUT ",{ROOT},"
,"",
!!!

!compare: 
DEFINE/LOCAL ROOT/C/1/180 "test"
WRITE/OUT ",{ROOT},"
,test,


ROOT = "" 
!should do the same, really, but generates an error: 
Invalid syntax in COMPUTE/KEY...
ROOT = "test" 
!works as expected.

So, how *is* the empty string specified in MIDAS? I need ROOT to be empty in
some cases, that is containing really nothing.

I'll use a workaround for my particular problem, but I'll still be excited to
see the answer.

Regards,

Sebastian Jester

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