Re: JESS: Regular expression syntax

[Prof. Michael Stiber]

Since this is merely a string argument to a function, one can define 
its syntax in any manner desired without regard to its impact on the 
structure of the Jess language or the need to prevent conflict with 
existing constructs. If one wishes to use the values of 
previously-bound variables, one can concatenate them with other parts 
of a string. We're also free to make the regex string syntax almost 
anything desired, so, for instance, the decision could be made to use 
sed syntax, so variables could even be bound and re-used _within_ the 
matching (whether this is needed or desirable being another issue). It 
would even be possible to have multiple "flavors" of the "match" 
function, each using different regex syntaxes.

To me, the strength of this approach is that the knowledge of such 
things is compartmentalized within the function's documentation, and 
there is no need to know about it unless you need to perform regular 
expression matches.

On Tuesday, November 4, 2003, at 11:34  PM, Eric Jain wrote:

(animal (name ?n&:(match ?n "[a-z]*")))

the most flexible; witness all the issues presented regarding
variables and multislots in regular expressions.
So how would this solution address variables in regular expressions?

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