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Article contents:== Outdated egg! This is an egg for CHICKEN 4, the unsupported old release. You're almost certainly looking for [[/eggref/5/syn-param|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 [[https://wiki.call-cc.org/chicken-projects/egg-index-5.html|egg index]]. Otherwise, please consider porting this egg to the current version of CHICKEN. [[tags: egg]] [[toc:]] == syn-param === Introduction Operators with exended parameter syntax === Usage <enscript hightlight=scheme> (require-extension syn-param) </enscript> === Documentation <macro>(with-extended-parameter-operators ((NAME (PROCEDURE (PARAM . DEFAULT) ...)) ...) BODY ...)</macro> Provides local procedures available as {{NAME ...}} that when invoked allow passing named parameters to the corresponding {{PROCEDURE ...}} using the {{(=> PARAM VALUE)}} syntax. For example: <enscript hightlight=scheme> (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) </enscript> === 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 Description of your changes:

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