;;; SRFI-227 define-optinal and define-optional* are in their own module ;;; for some reason. ;; Copyright © 2023 Shawn Wagner ;; Permission is hereby granted, free of charge, to any person obtaining a copy ;; of this software and associated documentation files (the “Software”), to deal ;; in the Software without restriction, including without limitation the rights ;; to use, copy, modify, merge, publish, distribute, sublicense, and/or sell ;; copies of the Software, and to permit persons to whom the Software is ;; furnished to do so, subject to the following conditions: ;; The above copyright notice and this permission notice shall be included in all ;; copies or substantial portions of the Software. ;; THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR ;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, ;; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE ;; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER ;; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE ;; SOFTWARE. (module (srfi 227 definition) * (import scheme (chicken base) (only (chicken platform) register-feature!) (srfi 227)) (register-feature! 'srfi-227-definition) (define-syntax define-optionals (syntax-rules () ((_ (name . formals) . body) (define name (opt-lambda formals . body))))) (define-syntax define-optionals* (syntax-rules () ((_ (name . formals) . body) (define name (opt*-lambda formals . body))))))