You are looking at historical revision 39572 of this page. It may differ significantly from its current revision.

Outdated egg!

This is an egg for CHICKEN 4, the unsupported old release. You're almost certainly looking for the CHICKEN 5 version of this egg, if it exists.

If it does not exist, there may be equivalent functionality provided by another egg; have a look at the egg index. Otherwise, please consider porting this egg to the current version of CHICKEN.

• egg

syn-param

Introduction

Operators with exended parameter syntax

Usage

(require-extension syn-param)

Documentation

[syntax] (with-extended-parameter-operators ((NAME (PROCEDURE (PARAM . DEFAULT) ...)) ...) BODY ...)

Provides local procedures available as NAME ... that when invoked allow passing named parameters to the corresponding PROCEDURE ... using the (=> PARAM VALUE) syntax. For example:

(define (foo x y z) ...)

(with-extended-parameter-operators
    ((foo* (foo (x . 0) (y . 0) (z . 0))))
  (foo* 5 (=> z 3) (=> y 1)))

<=>

(foo 5 1 3)

Author

Taylor R. Campbell

License

This code is written by Taylor R. Campbell and placed in the Public Domain. All warranties are disclaimed.

Version History

0.2

add license field to .meta

0.1

initial release