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guile/module/ice-9/top-repl.scm
Andy Wingo ff87b2bd7c top-repl out to its own module
* module/ice-9/boot-9.scm:
* module/ice-9/top-repl.scm: Move top-repl out here.

* module/Makefile.am: Add new file.

* module/ice-9/deprecated.scm (top-repl): Deprecated shim.

* libguile/script.c (scm_compile_shell_switches): Invoke top-repl from
  its new location.
2010-06-22 23:50:27 +02:00

72 lines
2.5 KiB
Scheme

;;; -*- mode: scheme; coding: utf-8; -*-
;;;; Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010
;;;; 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
;;;;
(define-module (ice-9 top-repl)
#:use-module (ice-9 top-repl)
#:use-module ((system repl repl) #:select (start-repl))
;; #:replace, as with deprecated code enabled these will be in the root env
#:replace (top-repl))
(define call-with-sigint
(if (not (provided? 'posix))
(lambda (thunk) (thunk))
(lambda (thunk)
(let ((handler #f))
(dynamic-wind
(lambda ()
(set! handler
(sigaction SIGINT
(lambda (sig)
(scm-error 'signal #f "User interrupt" #f
(list sig))))))
thunk
(lambda ()
(if handler
;; restore Scheme handler, SIG_IGN or SIG_DFL.
(sigaction SIGINT (car handler) (cdr handler))
;; restore original C handler.
(sigaction SIGINT #f))))))))
(define (top-repl)
(let ((guile-user-module (resolve-module '(guile-user))))
;; Use some convenient modules (in reverse order)
(set-current-module guile-user-module)
(process-use-modules
(append
'(((ice-9 r5rs))
((ice-9 session))
((ice-9 debug)))
(if (provided? 'regex)
'(((ice-9 regex)))
'())
(if (provided? 'threads)
'(((ice-9 threads)))
'())))
;; load debugger on demand
(module-autoload! guile-user-module '(system vm debug) '(debug))
(call-with-sigint
(lambda ()
(let ((status (start-repl 'scheme)))
(run-hook exit-hook)
status)))))