;;; Copyright (C) 2010, 2011, 2013, 2024 Free Software Foundation, Inc. ;;; ;;; This library is free software; you can redistribute it and/or ;;; modify it under the terms of the GNU Lesser General Public ;;; License as published by the Free Software Foundation; either ;;; version 3 of the License, or (at your option) any later version. ;;; ;;; This library is distributed in the hope that it will be useful, ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;;; Lesser General Public License for more details. ;;; ;;; You should have received a copy of the GNU Lesser General Public ;;; License along with this library; if not, write to the Free Software ;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ;;; Commentary: ;;; ;;; This is a convenience module for porting Goblins to Hoot while Guile support ;;; is incomplete. It simply re-exports some extant Hoot prompt functionality ;;; and adds call-with-escape-continuation and call/ec. ;;; ;;; Code: (define-module (ice-9 control) #:use-module (hoot control) #:export (make-prompt-tag default-prompt-tag call-with-prompt abort-to-prompt % default-prompt-handler call-with-escape-continuation call/ec)) (define (call-with-escape-continuation proc) "Call PROC with an escape continuation." (let ((tag (list 'call/ec))) (call-with-prompt tag (lambda () (proc (lambda args (apply abort-to-prompt tag args)))) (lambda (_ . args) (apply values args))))) (define call/ec call-with-escape-continuation)