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|
;;;;; -*-coding: iso-8859-1;-*-
;;;;;
;;;;; $Id: filter-edit.el,v 44.12 2001/01/03 22:02:54 qha Exp $
;;;;; Copyright (C) 1994, 1996 Lysator Academic Computer Association.
;;;;;
;;;;; This file is part of the LysKOM server.
;;;;;
;;;;; LysKOM 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, or (at your option)
;;;;; any later version.
;;;;;
;;;;; LysKOM 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 LysKOM; see the file COPYING. If not, write to
;;;;; Lysator, c/o ISY, Linkoping University, S-581 83 Linkoping, SWEDEN,
;;;;; or the Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
;;;;; MA 02139, USA.
;;;;;
;;;;; Please mail bug reports to bug-lyskom@lysator.liu.se.
;;;;;
;;;;============================================================
;;;;============================================================
;;;;
;;;; File: filter-edit.el
;;;;
;;;; This file contains the filter editor
;;;;
(setq lyskom-clientversion-long
(concat lyskom-clientversion-long
"$Id: filter-edit.el,v 44.12 2001/01/03 22:02:54 qha Exp $\n"))
(defvar filter-edit-currently-edited-filter-entry-list nil
"List of filters currently being edited in a filter editor")
(defvar filter-edit-change-flag nil)
(defvar filter-edit-filter-list nil)
(defvar filter-edit-list-start nil)
(defvar filter-edit-list-end nil)
(defun copy-filter-list (l)
"Copy the filter list L"
(cond ((null l) nil)
(t (cons (copy-filter (car l))
(copy-filter-list (cdr l))))))
(defun lyskom-reverse-pairs (l)
"Reverse the pairs in the assoc list L"
(mapcar (function
(lambda (e) (cons (cdr e) (car e)))) l))
;;;========================================
;;; Data types
;;;
;;; filter-entry
;;; Entry in the filter-entry list
;;;
;;; A filter entry is a vector consisting of
;;;
;;; [START END LINES PATTERN]
;;;
;;; START is the starting position (mark) in the buffer
;;; END is the ending position (mark) in the buffer
;;; LINES is a list of starting positions (marks) of the lines
;;; PATTERN is the filter displayed (type filter)
;;;
(defun filter-entry->start (e)
"Get starting position of entry E."
(aref e 0))
(defun set-filter-entry->start (e s)
"Set starting position of entry E to S."
(aset e 0 s))
(defun filter-entry->end (e)
"Get end position of entry E."
(aref e 1))
(defun set-filter-entry->end (e s)
"Set end position of entry E to S."
(aset e 1 s))
(defun filter-entry->lines (e)
"Get line start list of entry E."
(aref e 2))
(defun set-filter-entry->lines (e p)
"Set line start list of entry E to P."
(aset e 2 p))
(defun filter-entry->filter (e)
"Get filter of entry E."
(aref e 3))
(defun set-filter-entry->filter (e p)
"Set filter of entry E to P."
(aset e 3 p))
(defun make-filter-entry (start end lines pattern)
"Create an filter entry with START, END, LINES and PATTERN as values."
(vector start end lines pattern))
;;;============================================================
;;; Verification functions
;;;
(defun lyskom-verify-filter-list (filter)
"Return non-nil if FILTER is a valid filter list"
(cond ((null filter) t)
((not (listp filter)) nil)
((not (filter-p (car filter))) nil)
(t (and (lyskom-verify-filter-pattern
(filter->pattern (car filter)))
(lyskom-verify-filter-list (cdr filter))))))
(defun lyskom-verify-filter-pattern (filter)
"Return non-nil if FILTER is a valid filter pattern"
(cond ((null filter) nil)
((and (= (length filter) 1)
(symbolp (car filter))) t)
((not (listp (car filter))) nil)
((eq 'not (car (car filter)))
(lyskom-verify-filter-pattern
(cons (cdr (car filter)) (cdr filter))))
((memq (car (car filter))
'(author-re recipient-re subject-re text-re))
(and
(lyskom-filter-verify-regexp (cdr (car filter)))
(lyskom-verify-filter-pattern (cdr filter))))
((memq (car (car filter)) '(author subject recipient text))
(and
(stringp (cdr (car filter)))
(lyskom-verify-filter-pattern (cdr filter))))
((memq (car (car filter)) '(author-no recipient-no))
(and
(integerp (cdr (car filter)))
(lyskom-verify-filter-pattern (cdr filter))))
(t nil)))
(defun lyskom-filter-verify-regexp (re)
"Return t if RE is a valid regexp."
(condition-case nil
(progn
(string-match re "teststring")
t)
(error nil)))
;;;========================================
;;; Locator functions
;;;
(defun lyskom-filter-edit-lineno (where entry)
"Return the line number at WHERE in the entry ENTRY.
-1 means the header. 0 is the first line. Any number higher than the number of lines means outside the pattern."
(let* ((lines (append (filter-entry->lines entry)
(cons (filter-entry->end entry) nil)))
(line -1)
(current-line (length lines)))
(if (>= where (filter-entry->start entry))
(while lines
(if (< where (car lines))
(progn
(setq current-line line)
(setq lines nil))
(progn
(setq lines (cdr lines))
(setq line (1+ line))))))
current-line))
(defun lyskom-filter-edit-locate (where)
"Locate the entry at character position WHERE.
nil means WHERE is not in any entry."
(let ((entry-no (lyskom-filter-edit-locate-no where)))
(if (= -1 entry-no)
nil
(elt filter-edit-currently-edited-filter-entry-list entry-no))))
(defun lyskom-filter-edit-locate-no (where)
"Find the filter-edit-currently-edited-filter-entry-list index of the entry
covering the character position WHERE. -1 means WHERE is not covered y any
entry."
(let ((i 0)
(entry-no -1)
(l filter-edit-currently-edited-filter-entry-list))
(while l
(if (and (>= where (filter-entry->start (car l)))
(<= where (filter-entry->end (car l))))
(progn (setq entry-no i)
(setq l nil))
(progn (setq i (1+ i))
(setq l (cdr l)))))
entry-no))
;;;========================================
;;; Formatting functions
;;;
(defun lyskom-format-filter-list (filters)
"Format the filter list FILTERS and insert the result into the
current buffer. The buffer variable
FILTER-EDIT-CURRENTLY-EDITED-FILTER-ENTRY-LIST is also updated."
(let ((inhibit-read-only t))
(setq filter-edit-currently-edited-filter-entry-list nil)
(lyskom-format-filter-list-2 filters)
(setq filter-edit-currently-edited-filter-entry-list
(nreverse filter-edit-currently-edited-filter-entry-list))))
(defun lyskom-format-filter-list-2 (filters)
"Format the filter list FILTERS and insert the result into the
current buffer."
(cond ((null filters) nil)
(t (setq filter-edit-currently-edited-filter-entry-list
(cons (lyskom-format-filter-pattern (car filters))
filter-edit-currently-edited-filter-entry-list))
(lyskom-format-filter-list-2 (cdr filters)))))
(defun lyskom-format-filter-pattern (pat)
"Format and insert the filter pattern PAT into the current buffer.
Returns an filter-entry structure representing the entry."
(let ((inhibit-read-only t)
start end lines)
;;
;; Insert text representation
;;
(setq start (point-marker))
(lyskom-filter-format-entry-header pat t)
(setq lines (lyskom-format-filter-pattern-2 (filter->pattern pat) nil))
(setq end (point-marker))
(insert "\n")
(make-filter-entry start end lines pat)))
(defun lyskom-format-filter-pattern-2 (pat lines &optional neg)
"Format and insert the body of the filter pattern PAT into the
current buffer. Accumulate line starts in LINES.
If NEG is non-nil, the first line will be negated."
(cond ((or (null pat)) (nreverse lines))
((eq (car (car pat)) 'not)
(lyskom-format-filter-pattern-2 (cons (cdr (car pat))
(cdr pat))
lines
t))
(t
(setq lines (cons (point-marker) lines))
(lyskom-format-filter-pattern-insert pat neg)
(lyskom-format-filter-pattern-2 (cdr pat) lines))))
(defun lyskom-format-filter-pattern-insert (pat neg)
"Format and insert the first pattern in PAT.
If NEG is non-nil, format the negation."
(let (tmp)
(insert
(format " %s %s %S"
(cdr (assoc (car (car pat)) lyskom-filter-what))
(if neg
" != "
" = ")
(cdr (car pat))))
(cond ((memq (car (car pat)) '(recipient-no author-no))
(save-excursion
(if (boundp 'lyskom-buffer)
(set-buffer lyskom-buffer))
(setq tmp (blocking-do 'get-conf-stat (cdr (car pat)))))
(insert (format " <%s>" (conf-stat->name tmp)))))
(insert "\n")))
(defun lyskom-filter-format-entry-header (filter &optional newline action)
"Format the header of a filter entry. FILTER is the filter to format.
If NEWLINE is non-nil, insert a newline after the header."
(let (permanent)
(setq action (filter->attribute filter 'action)
permanent (null (filter->attribute filter 'expire)))
(insert
(format "--- %s %s"
(cdr
(assq action lyskom-filter-actions ))
(lyskom-get-string
(if permanent 'permanent 'temporary))))
(if newline (insert "\n"))))
;;;========================================
;;; User commands
;;;
(defun lyskom-filter-edit-next-pattern (arg)
"Move to the ARGth next pattern line in the current buffer."
(interactive "p")
(if (null arg) (setq arg 1))
(if (< arg 0)
(lyskom-filter-edit-prev-entry (- arg))
(while (/= arg 0)
(let ((entry-no (lyskom-filter-edit-locate-no (point)))
tmp)
(if (= -1 entry-no)
(if (car filter-edit-currently-edited-filter-entry-list)
(goto-char
(filter-entry->start
(car filter-edit-currently-edited-filter-entry-list)))
(lyskom-error (lyskom-get-string 'filter-edit-empty-list)))
(let* ((entry
(elt filter-edit-currently-edited-filter-entry-list
entry-no))
(lineno (lyskom-filter-edit-lineno (point) entry)))
(cond
((= lineno -1)
(if (filter-entry->lines entry)
(setq tmp (car (filter-entry->lines entry)))
(progn
(setq tmp
(elt filter-edit-currently-edited-filter-entry-list
(1+ entry-no)))
(if tmp
(setq tmp (filter-entry->start tmp))
(lyskom-error (lyskom-get-string 'filter-edit-end-of-list))))))
((= lineno (1- (length (filter-entry->lines entry))))
(setq tmp (elt filter-edit-currently-edited-filter-entry-list
(1+ entry-no)))
(if tmp
(setq tmp (filter-entry->start tmp))
(lyskom-error (lyskom-get-string 'filter-edit-end-of-list))))
(t (setq tmp (elt (filter-entry->lines entry) (1+ lineno)))))
(goto-char tmp)
(setq arg (1- arg))))))))
(defun lyskom-filter-edit-prev-pattern (arg)
"Move to the ARGth previous pattern line in the current buffer."
(interactive "p")
(if (null arg) (setq arg 1))
(if (< arg 0)
(lyskom-filter-edit-next-entry (- arg))
(while (/= arg 0)
(let ((entry-no (lyskom-filter-edit-locate-no (point)))
tmp)
(if (= -1 entry-no)
(if (car filter-edit-currently-edited-filter-entry-list)
(goto-char
(filter-entry->start
(car filter-edit-currently-edited-filter-entry-list)))
(lyskom-error (lyskom-get-string 'filter-edit-empty-list)))
(let* ((entry
(elt filter-edit-currently-edited-filter-entry-list
entry-no))
(lineno (lyskom-filter-edit-lineno (point) entry)))
(cond
((= lineno -1)
(if (= 0 entry-no)
(lyskom-error (lyskom-get-string 'filter-edit-start-of-list))
(progn
(setq entry
(elt filter-edit-currently-edited-filter-entry-list
(1- entry-no)))
(setq tmp (car
(nthcdr (1- (length (filter-entry->lines entry)))
(filter-entry->lines entry))))
(if (null tmp)
(setq tmp (filter-entry->start entry))))))
((= lineno 0)
(setq tmp (filter-entry->start entry)))
(t (setq tmp (elt (filter-entry->lines entry) (1- lineno)))))
(goto-char tmp)
(setq arg (1- arg))))))))
(defun lyskom-filter-edit-next-entry (arg)
"Move to the ARGth next entry in the current buffer."
(interactive "p")
(if (null arg) (setq arg 1))
(if (< arg 0)
(lyskom-filter-edit-prev-entry (- arg))
(while (/= 0 arg)
(let ((entry-no (lyskom-filter-edit-locate-no (point))))
(if (= -1 entry-no)
(if (car filter-edit-currently-edited-filter-entry-list)
(goto-char
(filter-entry->start
(car filter-edit-currently-edited-filter-entry-list)))
(lyskom-error (lyskom-get-string 'filter-edit-empty-list)))
(let ((tmp (elt filter-edit-currently-edited-filter-entry-list (1+ entry-no))))
(if tmp
(progn
(goto-char (filter-entry->start tmp))
(setq arg (1- arg)))
(lyskom-error (lyskom-get-string 'filter-edit-end-of-list)))))))))
(defun lyskom-filter-edit-prev-entry (arg &optional noerror)
"Move to the ARGth previous entry in the current buffer."
(interactive "p")
(not
(catch 'fail
(if (null arg) (setq arg 1))
(if (< arg 0)
(lyskom-filter-edit-next-entry (- arg))
(while (/= 0 arg)
(let ((entry-no (lyskom-filter-edit-locate-no (point))))
(if (= -1 entry-no)
(if (car filter-edit-currently-edited-filter-entry-list)
(goto-char (filter-entry->start (car filter-edit-currently-edited-filter-entry-list)))
(if noerror (throw 'fail t)
(lyskom-error (lyskom-get-string 'filter-edit-empty-list)))))
(if (= 0 entry-no)
(if noerror (throw 'fail t)
(lyskom-error (lyskom-get-string 'filter-edit-start-of-list)))
(let ((tmp (elt filter-edit-currently-edited-filter-entry-list (1- entry-no))))
(setq arg (1- arg))
(goto-char (filter-entry->start tmp))))))))))
(defun lyskom-filter-edit-beginning-of-list ()
"Move to the first entry in the list"
(interactive)
(if (null filter-edit-currently-edited-filter-entry-list)
(lyskom-error (lyskom-get-string 'filter-edit-empty-list))
(progn
(push-mark)
(goto-char (filter-entry->start (car filter-edit-currently-edited-filter-entry-list))))))
(defun lyskom-filter-edit-end-of-list ()
"Move to the last entry in the list"
(interactive)
(if (null filter-edit-currently-edited-filter-entry-list)
(lyskom-error (lyskom-get-string 'filter-edit-empty-list))
(let ((entry (elt filter-edit-currently-edited-filter-entry-list (1- (length filter-edit-currently-edited-filter-entry-list)))))
(push-mark)
(goto-char (or (elt (filter-entry->lines entry)
(1- (length (filter-entry->lines entry))))
(filter-entry->start entry))))))
(defun lyskom-filter-edit-insert-entry ()
"Add an entry to the end of the list"
(interactive)
(let ((inhibit-read-only t)
(completion-ignore-case t)
(rev-actions
(lyskom-reverse-pairs lyskom-filter-actions))
action permanent filter start end entry)
(if filter-edit-currently-edited-filter-entry-list
(progn
(goto-char (filter-entry->end (elt filter-edit-currently-edited-filter-entry-list
(1- (length filter-edit-currently-edited-filter-entry-list)))))
(insert "\n"))
(goto-char filter-edit-list-end))
(setq action (lyskom-completing-read (lyskom-get-string 'filter-edit-filter-how)
(lyskom-maybe-frob-completion-table
rev-actions)
nil
t))
(setq permanent
(lyskom-j-or-n-p (lyskom-get-string 'filter-permanent)))
(setq filter (make-filter nil
(list (cons 'action
(cdr (assoc action rev-actions)))
(cons 'expire (not permanent)))))
(setq start (point-marker))
(lyskom-filter-format-entry-header filter t)
(setq end (point-marker))
(setq entry
(make-filter-entry start end nil filter))
(if filter-edit-currently-edited-filter-entry-list
(setcdr (nthcdr (1- (length filter-edit-currently-edited-filter-entry-list)) filter-edit-currently-edited-filter-entry-list)
(cons entry nil))
(setq filter-edit-currently-edited-filter-entry-list (cons entry nil)))
(setq filter-edit-change-flag t)
(goto-char start)))
(defun lyskom-filter-edit-insert-pattern ()
"Add a pattern line to the current list entry."
(interactive)
(let ((entry-no (lyskom-filter-edit-locate-no (point))))
(if (= -1 entry-no)
(lyskom-error (lyskom-get-string 'filter-edit-outside-entry))))
(let ((what nil)
(pred nil)
(arg nil)
(argstring nil)
(lineno nil)
(entry nil)
(filter nil)
(pat nil)
(inhibit-read-only t)
(completion-ignore-case t)
(rev-what (lyskom-reverse-pairs lyskom-filter-what)))
(setq what (lyskom-completing-read
(lyskom-get-string 'filter-edit-filter-what)
(lyskom-maybe-frob-completion-table rev-what)
nil t))
(setq pred
(lyskom-completing-read (lyskom-format 'filter-edit-insert-pred what)
(lyskom-maybe-frob-completion-table
lyskom-filter-predicate-list
t)
nil t))
(setq argstring (lyskom-read-from-minibuffer
(lyskom-format 'filter-edit-insert-arg what pred)))
(setq what (cdr (assoc what rev-what)))
(if (not
(cond ((memq what '(author subject text recipient))
(setq arg argstring))
((memq what '(author-no recipient-no))
(setq arg (string-to-int argstring)))
((memq what '(author-re subject-re text-re recipient-re))
(setq arg argstring)
(lyskom-filter-verify-regexp arg))))
(lyskom-error (lyskom-get-string 'filter-edit-bad-argument)
argstring))
;;
;; Build pattern
;;
(setq pat
(cons what arg))
(if (cdr (assoc pred (lyskom-maybe-frob-completion-table
lyskom-filter-predicate-list t)))
(setq pat (cons 'not pat)))
;;
;; Locate current entry
;; Locate current line
;;
(setq entry (lyskom-filter-edit-locate (point)))
(setq lineno (lyskom-filter-edit-lineno (point) entry))
(setq filter (filter-entry->filter entry))
;;
;; Splice the new pattern into the old pattern at the
;; proper position. If lineno is -1 (the cursor is not in
;; the pattern area, append the pattern.
;;
(if (= -1 lineno)
(setq lineno (length (filter->pattern filter))))
(cond ((= lineno 0)
(set-filter->pattern
filter
(cons pat (filter->pattern filter))))
(t (if (filter->pattern filter)
(setcdr (nthcdr (1- lineno)
(filter->pattern filter))
(cons pat (nthcdr lineno
(filter->pattern filter))))
(set-filter->pattern filter pat))))
;;
;; Update display
;;
(if (= lineno (length (filter-entry->lines entry)))
(goto-char (filter-entry->end entry))
(goto-char (elt (filter-entry->lines entry) lineno)))
;;
;; OK, right now, POINT is on top os a marker that represents the
;; NEXT line. This marker must be puched forward to avoid duplicating
;; it.
;;
(forward-line -1)
(end-of-line)
(insert "\n")
(lyskom-format-filter-pattern-insert
(cons
(if (eq (car pat) 'not)
(cdr pat)
pat) nil)
(eq (car pat) 'not))
(forward-char -1)
(delete-char 1)
(beginning-of-line)
;;
;; Update lines list in the entry
;;
(cond ((= lineno 0)
(set-filter-entry->lines
entry
(cons (point-marker) (filter-entry->lines entry))))
(t (setcdr (nthcdr (1- lineno)
(filter-entry->lines entry))
(cons (point-marker)
(nthcdr lineno
(filter-entry->lines entry))))))
(setq filter-edit-change-flag t)))
(defun lyskom-filter-edit-delete-pattern (arg)
"Delete ARG pattern lines, starting with the one at point.
Only lines in the current entry will be deleted."
(interactive "p")
(let* ((inhibit-read-only t)
(entry (lyskom-filter-edit-locate (point)))
(filter (filter-entry->filter entry)))
(if (null entry)
(lyskom-error (lyskom-get-string 'filter-edit-outside-list))
(progn
(while (/= 0 arg)
(let ((lineno (lyskom-filter-edit-lineno (point) entry)))
(if (null arg) (setq arg 1))
(if (and (> lineno -1)
(< lineno (length (filter-entry->lines entry))))
(progn
(setq arg (1- arg))
(setq lineno (lyskom-filter-edit-lineno (point) entry))
(delete-region
(save-excursion (beginning-of-line) (point))
(1+ (save-excursion (end-of-line) (point))))
(if (= lineno (1- (length (filter-entry->lines entry))))
(forward-line -1))
(if (= lineno 0)
(progn
(set-filter-entry->lines
entry
(cdr (filter-entry->lines entry)))
(set-filter->pattern
filter
(cdr (filter->pattern filter)))
(setq filter-edit-change-flag t))
(progn
(setcdr (nthcdr (1- lineno)
(filter-entry->lines entry))
(nthcdr (1+ lineno)
(filter-entry->lines entry)))
(setcdr (nthcdr (1- lineno)
(filter->pattern
(filter-entry->filter entry)))
(nthcdr (1+ lineno)
(filter->pattern
(filter-entry->filter entry))))
(setq filter-edit-change-flag t))))
(lyskom-error (lyskom-get-string 'filter-edit-end-of-pattern)))))))))
(defun lyskom-filter-edit-delete-entry (arg &optional which noerror)
"Delete ARG entries, starting with the one covering point.
If optional WHICH is non-nil, start with entry number WHICH.
If NOERROR is non-nil, return nil instead of signaling an error."
(interactive "p")
(let ((inhibit-read-only t))
(not
(catch 'fail
(if (null arg) (setq arg 1))
(while (/= 0 arg)
(let* ((entry-no (or which
(lyskom-filter-edit-locate-no (point))))
(entry nil))
(if (= -1 entry-no)
(if noerror
(throw 'fail t)
(lyskom-error (lyskom-get-string 'filter-edit-end-of-list))))
(setq entry (elt filter-edit-currently-edited-filter-entry-list
entry-no))
(delete-region (filter-entry->start entry)
(1+ (filter-entry->end entry)))
(cond ((= 0 entry-no)
(setq filter-edit-currently-edited-filter-entry-list
(cdr filter-edit-currently-edited-filter-entry-list))
(setq filter-edit-change-flag t))
(t (setcdr
(nthcdr (1- entry-no)
filter-edit-currently-edited-filter-entry-list)
(nthcdr (1+ entry-no)
filter-edit-currently-edited-filter-entry-list))
(setq filter-edit-change-flag t)))
(if (= entry-no
(length filter-edit-currently-edited-filter-entry-list))
(progn (if (lyskom-filter-edit-prev-entry 1 t)
(setq arg 0)
(throw 'fail t)))
(setq arg (1- arg)))))))))
(defun lyskom-filter-edit-quit ()
"Quit filter edit mode and ask to save changes (if any)"
(interactive)
(let ((save nil))
(if filter-edit-change-flag
(setq save (lyskom-j-or-n-p
(lyskom-get-string 'filter-edit-save-p))))
(if save
(lyskom-filter-edit-save))
(set-window-configuration lyskom-edit-return-to-configuration)))
(defun lyskom-filter-edit-expunge ()
"Delete all entries that are completely empty"
(interactive)
(let ((e filter-edit-currently-edited-filter-entry-list)
(index 0))
(while e
(if (null (filter-entry->lines (car e)))
(lyskom-filter-edit-delete-entry 1 index t)
(setq index (1+ index)))
(setq e (cdr e)))))
(defun lyskom-filter-empty-patterns-p ()
"Return non-nil if the entry list contains empty entries."
(let ((e filter-edit-currently-edited-filter-entry-list)
(result nil))
(while e
(if (null (filter-entry->lines (car e)))
(progn (setq e nil) (setq result t))
(setq e (cdr e))))
result))
(defun lyskom-filter-edit-save ()
"Save changes in filter edit mode"
(interactive)
(if (and
(lyskom-filter-empty-patterns-p)
(lyskom-j-or-n-p
(lyskom-get-string 'filter-edit-remove-empty)))
(lyskom-filter-edit-expunge))
(let ((e filter-edit-currently-edited-filter-entry-list)
(xpermanent-list nil)
(xtemporary-list nil))
(while e
(set-filter->function
(filter-entry->filter (car e))
(lyskom-create-compile-filter-function
(filter->pattern (filter-entry->filter (car e)))))
(set (if (filter->attribute (filter-entry->filter (car e))
'expire)
'xtemporary-list
'xpermanent-list)
(cons (filter-entry->filter (car e))
(if (filter->attribute (filter-entry->filter (car e))
'expire)
xtemporary-list
xpermanent-list)))
(setq e (cdr e)))
(save-excursion
(set-buffer lyskom-buffer)
(setq lyskom-filter-list
(append
(setq kom-permanent-filter-list (nreverse xpermanent-list))
(setq kom-session-filter-list (nreverse xtemporary-list))))
(setq filter-edit-change-flag nil)
(lyskom-message "%s" (lyskom-get-string 'filter-edit-saving))
(lyskom-save-options lyskom-buffer
(lyskom-get-string 'filter-edit-saving)
(lyskom-get-string 'filter-edit-saving-done)
(lyskom-get-string 'filter-edit-saving-error)))))
(defun lyskom-filter-edit-revert ()
"Discard changes and restart editing"
(interactive)
(if (or (not filter-edit-change-flag)
(and filter-edit-change-flag
(lyskom-j-or-n-p (lyskom-get-string 'filter-edit-restart-p))))
(let ((inhibit-read-only t))
(setq filter-edit-currently-edited-filter-entry-list nil)
(delete-region filter-edit-list-start filter-edit-list-end)
(goto-char filter-edit-list-start)
(insert "\n")
(lyskom-format-filter-list (copy-filter-list lyskom-filter-list))
(setq filter-edit-change-flag nil)
(lyskom-filter-edit-beginning-of-list))))
(defun lyskom-filter-edit-toggle-permanent ()
"Toggle the permanent flag of the current entry"
(interactive)
(let ((entry-no (lyskom-filter-edit-locate-no (point)))
(inhibit-read-only t))
(if (= -1 entry-no)
(lyskom-error (lyskom-get-string 'filter-edit-outside-entry)))
(let ((entry (elt filter-edit-currently-edited-filter-entry-list
entry-no)))
(set-filter->attribute (filter-entry->filter entry)
'expire
(not (filter->attribute
(filter-entry->filter entry)
'expire)))
(setq filter-edit-change-flag t)
(save-excursion
(goto-char (filter-entry->start entry))
(delete-region (point) (save-excursion (end-of-line) (point)))
(lyskom-filter-format-entry-header (filter-entry->filter entry))))))
(defun lyskom-filter-edit-toggle-action ()
"Toggle the filter action of the current entry."
(interactive)
(let ((entry-no (lyskom-filter-edit-locate-no (point)))
(inhibit-read-only t))
(if (= -1 entry-no)
(lyskom-error (lyskom-get-string 'filter-edit-outside-entry)))
(let* ((entry (elt filter-edit-currently-edited-filter-entry-list
entry-no))
(action-list lyskom-filter-actions)
(action (car
(cdr (memq
(assq
(filter->attribute (filter-entry->filter entry)
'action)
action-list)
action-list))))
(new-action (or action (car action-list))))
(setq filter-edit-change-flag t)
(set-filter->attribute (filter-entry->filter entry)
'action
(car new-action))
(save-excursion
(goto-char (filter-entry->start entry))
(delete-region (point) (save-excursion (end-of-line) (point)))
(lyskom-filter-format-entry-header (filter-entry->filter entry))))))
(defun lyskom-filter-edit-brief-help ()
"Display a help message in the minibuffer."
(interactive)
(lyskom-message "%s" (lyskom-get-string 'filter-edit-help)))
(defun lyskom-filter-edit-mode ()
"\\<lyskom-filter-edit-map>Mode for editing LysKOM filters.
Entry to this mode runs lyskom-filter-edit-hook
Commands:
\\[lyskom-filter-edit-prev-pattern] Moves up in the pattern list.
\\[lyskom-filter-edit-next-pattern] Moves down in the pattern list.
\\[lyskom-filter-edit-prev-entry] Moves up one filter in the list.
\\[lyskom-filter-edit-next-entry] Moves down one filter in the list.
\\[lyskom-filter-edit-beginning-of-list] Moves to the beginning of the list.
\\[lyskom-filter-edit-end-of-list] Moves to the end of the list.
\\[lyskom-filter-edit-delete-pattern] Deletes the pattern line at point.
\\[lyskom-filter-edit-delete-entry] Deletes the filter containing point.
\\[lyskom-filter-edit-insert-pattern] Inserts a pattern line at point.
\\[lyskom-filter-edit-insert-entry] Inserts a new filter into the list.
\\[lyskom-filter-edit-expunge] Deletes all empty filters from the list.
\\[lyskom-filter-edit-revert] Discards all changes to the list.
\\[lyskom-filter-edit-toggle-action] Toggles the filter action of the filter containing point.
\\[lyskom-filter-edit-toggle-permanent] Toggles between permanent and temporary.
\\[lyskom-filter-edit-save] Saves the filters.
\\[lyskom-filter-edit-quit] Quit and return to LysKOM.
All key bindings:
\\{lyskom-filter-edit-map}
"
(interactive)
(kill-all-local-variables)
(make-local-variable 'filter-edit-currently-edited-filter-entry-list)
(make-local-variable 'filter-edit-change-flag)
(make-local-variable 'filter-edit-filter-list)
(make-local-variable 'filter-edit-list-start)
(make-local-variable 'filter-edit-list-end)
(make-local-variable 'lyskom-buffer)
(make-local-variable 'lyskom-edit-return-to-configuration)
(setq buffer-read-only t)
(setq filter-edit-change-flag nil)
(buffer-disable-undo (current-buffer))
(lyskom-use-local-map lyskom-filter-edit-map)
(setq mode-name "LysKOM Filter Edit")
(setq major-mode 'lyskom-filter-edit-mode)
(setq local-abbrev-table 'lyskom-filter-edit-abbrev-table)
(run-hooks 'lyskom-filter-edit-hook))
;;;========================================
;;; LysKOM command to start editing
;;;
(defun kom-filter-edit ()
(interactive)
(let ((buf (current-buffer))
(filters lyskom-filter-list)
(server-name lyskom-server-name)
(curwin (current-window-configuration)))
(lyskom-display-buffer
(lyskom-get-buffer-create 'edit-filters
(concat (buffer-name buf)
"-"
(lyskom-get-string
'filter-edit-buffer-name))
t))
(let ((inhibit-read-only t))
(erase-buffer))
(lyskom-filter-edit-mode)
(setq lyskom-buffer buf)
(let ((inhibit-read-only t))
(setq filter-edit-filter-list filters)
(insert (format (lyskom-get-string 'filter-edit-header)
server-name))
(setq filter-edit-list-start (point-marker))
(insert "\n")
(lyskom-format-filter-list (copy-filter-list filter-edit-filter-list))
(setq filter-edit-list-end (point-max-marker)))
(setq lyskom-edit-return-to-configuration curwin)
(lyskom-filter-edit-beginning-of-list)))
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