On 25-Aug-07, at 12:32 PM, Igor Stasenko wrote:


> We need only minor changes to parser to add this syntax sugar, and no
> changes in complier because it don't breaks old syntax or message
> passing semantics.

Wrong.
   x = y | y > 3
You can't use #| because it is already defined for use as a binary  
symbol. Binary symbols have well defined semantics and syntax. (ab) 
using #| would by definition break old semantics and syntax rules.

tim
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