;;; -*- Mode: Emacs-Lisp -*-
;;; ilisp-hnd.el --
;;; ILISP Error handler
;;;
;;; This file is part of ILISP.
;;; Please refer to the file COPYING for copyrights and licensing
;;; information.
;;; Please refer to the file ACKNOWLEGDEMENTS for an (incomplete) list
;;; of present and past contributors.
;;;
;;; $Id: ilisp-hnd.el,v 1.3 2001/05/12 22:10:53 marcoxa Exp $
;; Do not handle errors by default.
(defvar ilisp-handle-errors nil)
;;;
(defun ilisp-handler (error-p wait-p message output prompt)
"Given ERROR-P, WAIT-P, MESSAGE, OUTPUT and PROMPT, show the message
and output if there is an error or the output is multiple lines and
let the user decide what to do."
(if (not ilisp-handle-errors)
(progn
(if message
(progn
(setq ilisp-last-message message
ilisp-last-prompt prompt)
(if (not wait-p) (lisp-display-output output))))
nil)
(if (and (not wait-p)
(setq output (comint-remove-whitespace output))
(or error-p (string-match "\n" output)))
(let* ((buffer (ilisp-output-buffer ilisp-output t))
(out (if error-p
(funcall ilisp-error-filter output)
output))
(key
(if (and error-p (not (comint-interrupted)))
(comint-handle-error
out
"SPC-scroll, I-ignore, K-keep, A-abort sends and keep or B-break: "
'(?i ?k ?a ?b))
(comint-handle-error
out
"SPC-scroll, I-ignore, K-keep or A-abort sends and keep: "
'(?i ?k ?a))))
(clear comint-queue-emptied))
(if (= key ?i)
(progn
(message "Ignore message")
(if buffer
(funcall
(ilisp-temp-buffer-show-function)
buffer)
(ilisp-bury-output))
t)
(save-excursion
(set-buffer (get-buffer-create "*Errors*"))
(if clear (delete-region (point-min) (point-max)))
(goto-char (point-max))
(insert message)
(insert ?\n)
(insert out)
(insert "\n\n"))
(if clear (setq comint-queue-emptied nil))
(if (= key ?a)
(progn
(message "Abort pending commands and keep in *Errors*")
(comint-abort-sends)
t)
(if (= key ?b)
(progn
(comint-insert
(concat comment-start comment-start comment-start
message "\n"
output "\n" prompt))
(message "Preserve break") nil)
(message "Keep error in *Errors* and continue")
t))))
t)))
;;;
(defun ilisp-abort-handler ()
"Handle when the user aborts commands."
(setq ilisp-initializing nil
ilisp-load-files nil)
(let ((add nil))
(while ilisp-pending-changes
(if (not (memq (car ilisp-pending-changes) lisp-changes))
(setq add (cons (car ilisp-pending-changes) add)))
(setq ilisp-pending-changes (cdr ilisp-pending-changes)))
(setq lisp-changes (nconc lisp-changes add))))