Re: Re: BeanShell Dialects: proposal for future syntax extension mechanism... (Patrick Niemeyer)

Yes, I suspect most people do something like this preprocessing technique.  In
my own spreadsheet app, I easily isolate my own stuff to preprocess using
special syntax that does not conflict with Bean Shell or straight Java.  It
would of course be nice if there was a way to preprocess as a syntax hook to
the scripting engine.

--- Timothy Wall <[email protected]> wrote:

> In my context, I've got a parser separate from beanshell in order to do 
> conversion of arguments from strings to actual objects, sort of a 
> mini-eval.
> 
> For example, I want the user to be able to write scripts with simple 
> string arguments instead of building more complex objects.
> 
> actionClick("mybutton", "(100, 100)");
> 
> I convert "mybutton" into a java.awt.Component through a complex lookup 
> procedure ("mybutton" actually maps to an aggregate of attributes which 
> are matched against existing Components to find an appropriate match), 
> and "(100, 100)" (or some other location specification) into a custom 
> Location class, which actually depends on the class of the Component in 
> the first argument.
> 
> In this case, simply having a hook into argument evaluation (knowing 
> the expected target class) would work.
> 
> 
> 
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=====
Alexey
Briggs & Stratton
1988 Kawasaki EX500 (CCS)
http://bsheet.sourceforge.net


		
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