Named Parameters

[Dar Scott]

Sometimes I pass an array when there are many parameters, many will be missing in any particular call, or I expect the number to grow.  Perhaps this will do what you want.

I suppose an alternative is to pass pairs of names and values in odd-even parameters.  

You can also use globals and have the handler clear the globals afterward.  

And you can pass comma pairs as parameters.  

It has been a long time since I have used LISP.  

Dar


On May 4, 2012, at 8:03 PM, Peter Haworth wrote:

> I seem to recall somewhere in the dim distant past that some languages have
> a syntax where function and procedure calls can have named parameters
> rather than positional ones.
> 
> function doIT p1,p2,p3,p4,p5,p6,p7,p8,p9,p10
> ..
> ..
> end doIT
> 
> put doIT("abc",p3="xyz", p10="def") into tVar
> 
> When functions have a large number of possible parameters but not all of
> them are required, this is a great way to avoid having to count commas in
> the calls to them.
> 
> I don;t think LC has any such syntax built in but wondering if anyone has
> tried to implement something similar?
> 
> 
> Pete
> lcSQL Software <http://www.lcsql.com>