On Tue, 20 Sep 2005, Michael Haardt wrote:

> Well, there are expansion conditions.  If "condition" would accept
> expansion conditions without surrounding "if" besides expanded strings,

It would need to be something entirely different. Consider

  condition = ${lookup ....}
  
There's no "if" involved there. "if" is only one feature of string 
expansions. If you want to change to

  condition = eq{string1}{string2}
  
then the whole rhs has changed its semantics rather drastically. It's 
no longer a generalized expanded string, but some specific conditions. 
For compatibility, one would need to have a different name, e.g.

  iftrue = eq{string1}{string2}   

-- 
Philip Hazel            University of Cambridge Computing Service,
[EMAIL PROTECTED]      Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book:    http://www.uit.co.uk/exim-book

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