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Common Lisp implementation running on the JVM
;;; ed.lisp
;;;
;;; Copyright (C) 2004-2007 Peter Graves
;;; $Id$
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU General Public License
;;; as published by the Free Software Foundation; either version 2
;;; of the License, or (at your option) any later version.
;;;
;;; This program 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 General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program; if not, write to the Free Software
;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
;;;
;;; As a special exception, the copyright holders of this library give you
;;; permission to link this library with independent modules to produce an
;;; executable, regardless of the license terms of these independent
;;; modules, and to copy and distribute the resulting executable under
;;; terms of your choice, provided that you also meet, for each linked
;;; independent module, the terms and conditions of the license of that
;;; module. An independent module is a module which is not derived from
;;; or based on this library. If you modify this library, you may extend
;;; this exception to your version of the library, but you are not
;;; obligated to do so. If you do not wish to do so, delete this
;;; exception statement from your version.
;;; Adapted from SBCL.
(in-package #:system)
(defun ed (&optional x)
"Starts the editor (on a file or a function if named). Functions
from the list *ED-FUNCTIONS* are called in order with X as an argument
until one of them returns non-NIL; these functions are responsible for
signalling a FILE-ERROR to indicate failure to perform an operation on
the file system."
(dolist (fun *ed-functions*
(error 'simple-error
:format-control "Don't know how to ~S ~A"
:format-arguments (list 'ed x)))
(when (funcall fun x)
(return)))
(values))
(defun default-ed-function (what)
(let ((portfile (merge-pathnames ".j/port"
(if (featurep :windows)
(if (ext:probe-directory "C:\\.j")
"C:\\"
(ext:probe-directory (pathname (ext:getenv "APPDATA"))))
(user-homedir-pathname))))
stream)
(when (probe-file portfile)
(let* ((port (with-open-file (s portfile) (read s nil nil)))
(socket (and (integerp port) (ext:make-socket "127.0.0.1" port))))
(setf stream (and socket (ext:get-socket-stream socket)))))
(unwind-protect
(cond ((stringp what)
(if stream
(progn
(write-string (namestring (user-homedir-pathname)) stream)
(terpri stream)
(write-string (format nil "~S~%" what) stream))
(run-shell-command (format nil "j ~S" what))))
((and what (symbolp what))
(when (autoloadp what)
(let ((*load-verbose* nil)
(*load-print* nil)
(*autoload-verbose* nil))
(resolve what)))
(cond ((source what)
(let ((file (namestring (source-pathname what)))
(position (source-file-position what))
(line-number 1)
(pattern (string what)))
(with-open-file (s file)
(dotimes (i position)
(let ((c (read-char s nil s)))
(cond ((eq c s)
(return))
((eql c #\newline)
(incf line-number)))))
(dotimes (i 10)
(let ((text (read-line s nil s)))
(cond ((eq text s)
(return))
((search pattern text :test 'string-equal)
(return))
(t
(incf line-number))))))
(if stream
(progn
(write-string (namestring (user-homedir-pathname)) stream)
(terpri stream)
(write-string (format nil "+~D~%~S~%" line-number file) stream))
(run-shell-command (format nil "j +~D ~S" line-number file)))))
((not (null *lisp-home*))
(let ((tagfile (merge-pathnames "tags" *lisp-home*)))
(when (and tagfile (probe-file tagfile))
(with-open-file (s tagfile)
(loop
(let ((text (read-line s nil s)))
(cond ((eq text s)
(return))
((eq what (read-from-string text nil nil))
;; Found it!
(with-input-from-string (string-stream text)
(let* ((symbol (read string-stream text nil nil)) ; Ignored.
(file (read string-stream text nil nil))
(line-number (read string-stream text nil nil)))
(declare (ignore symbol))
(when (pathnamep file)
(setf file (namestring file)))
(if stream
(progn
(write-string (namestring (user-homedir-pathname)) stream)
(terpri stream)
(write-string (format nil "+~D~%~S~%" line-number file) stream))
(run-shell-command (format nil "j +~D ~S" line-number file))))))))))))))))
(when stream
(close stream))))
t)