;; Copyright (C) 1992-1994, 2001-2011 Free Software Foundation, Inc.
-;; Author: Ken Manheimer <ken dot manheimer at gmail dot com>
-;; Maintainer: Ken Manheimer <ken dot manheimer at gmail dot com>
+;; Author: Ken Manheimer <ken dot manheimer at gmail...>
+;; Maintainer: Ken Manheimer <ken dot manheimer at gmail...>
;; Created: Dec 1991 -- first release to usenet
;; Version: 2.3
;; Keywords: outlines, wp, languages, PGP, GnuPG
-;; Website: http://myriadicity.net/Sundry/EmacsAllout
+;; Website: http://myriadicity.net/software-and-systems/craft/emacs-allout
;; This file is part of GNU Emacs.
;; the function value keymap of allout-mode-map is used in
;; minor-mode-map-alist - update it:
(fset allout-mode-map allout-mode-map-value))
-;;;_ * intialize the mode map:
+;;;_ * initialize the mode map:
;; ensure that allout-mode-map has some setting even if allout-mode hasn't
;; been invoked:
(allout-compose-and-institute-keymap)
the comment-start string, with an '_' appended, for `allout-primary-bullet'.
String values are used as literals, not regular expressions, so
-do not escape any regulare-expression characters.
+do not escape any regular-expression characters.
Value t means to first check for assoc value in `allout-mode-leaders'
alist, then use comment-start string, if any, then use default (`.').
:group 'allout-encryption)
;;;_ = allout-encrypt-unencrypted-on-saves
(defcustom allout-encrypt-unencrypted-on-saves t
- "When saving, should topics pending encryption be encrypted?
-
-The idea is to prevent file-system exposure of any un-encrypted stuff, and
-mostly covers both deliberate file writes and auto-saves.
-
- - Yes: encrypt all topics pending encryption, even if it's the one
- currently being edited. (In that case, the currently edited topic
- will be automatically decrypted before any user interaction, so they
- can continue editing but the copy on the file system will be
- encrypted.)
- Auto-saves will use the \"All except current topic\" mode if this
- one is selected, to avoid practical difficulties -- see below.
- - All except current topic: skip the topic currently being edited, even if
- it's pending encryption. This may expose the current topic on the
- file sytem, but avoids the nuisance of prompts for the encryption
- passphrase in the middle of editing for, eg, autosaves.
- This mode is used for auto-saves for both this option and \"Yes\".
- - No: leave it to the user to encrypt any unencrypted topics.
-
-For practical reasons, auto-saves always use the 'except-current policy
-when auto-encryption is enabled. (Otherwise, spurious passphrase prompts
-and unavoidable timing collisions are too disruptive.) If security for a
-file requires that even the current topic is never auto-saved in the clear,
-disable auto-saves for that file."
-
- :type '(choice (const :tag "Yes" t)
- (const :tag "All except current topic" except-current)
- (const :tag "No" nil))
- :version "22.1"
+ "If non-nil, topics pending encryption are encrypted during buffer saves.
+
+This prevents file-system exposure of un-encrypted contents of
+items marked for encryption.
+
+When non-nil, if the topic currently being edited is decrypted,
+it will be encrypted for saving but automatically decrypted
+before any subsequent user interaction, so it is once again clear
+text for editing though the file system copy is encrypted.
+
+\(Auto-saves are handled differently. Buffers with plain-text
+exposed encrypted topics are exempted from auto saves until all
+such topics are encrypted.)"
+
+ :type 'boolean
+ :version "23.1"
:group 'allout-encryption)
(make-variable-buffer-local 'allout-encrypt-unencrypted-on-saves)
+(defvar allout-auto-save-temporarily-disabled nil
+ "True while topic encryption is pending and auto-saving was active.
+
+The value of buffer-saved-size at the time of decryption is used,
+for restoring when all encryptions are established.")
+(defvar allout-just-did-undo nil
+ "True just after undo commands, until allout-post-command-business.")
+(make-variable-buffer-local 'allout-just-did-undo)
;;;_ + Developer
;;;_ = allout-developer group
(defvar allout-after-copy-or-kill-hook nil
"*Hook that's run after copying outline text.
-Functions on the hook should not take any arguments.")
+Functions on the hook should not require any arguments.")
+;;;_ = allout-post-undo-hook
+(defvar allout-post-undo-hook nil
+ "*Hook that's run after undo activity.
+
+The item that's current when the hook is run *may* be the one
+that was affected by the undo.
+
+Functions on the hook should not require any arguments.")
;;;_ = allout-outside-normal-auto-fill-function
(defvar allout-outside-normal-auto-fill-function nil
"Value of normal-auto-fill-function outside of allout mode.
Each value can be a regexp or a list with a regexp followed by a
substitution string. If it's just a regexp, all its matches are removed
before the text is encrypted. If it's a regexp and a substitution, the
-substition is used against the regexp matches, a la `replace-match'.")
+substitution is used against the regexp matches, a la `replace-match'.")
(make-variable-buffer-local 'allout-encryption-text-removal-regexps)
;;;_ = allout-encryption-ciphertext-rejection-regexps
(defvar allout-encryption-ciphertext-rejection-regexps nil
"Variable for regexps matching plaintext to remove before encryption.
This is used to detect strings in encryption results that would
-register as allout mode structural elements, for exmple, as a
+register as allout mode structural elements, for example, as a
topic prefix.
Entries must be symbols that are bound to the desired regexp values.
(defmacro allout-mode-p ()
"Return t if `allout-mode' is active in current buffer."
'allout-mode)
-;;;_ > allout-write-file-hook-handler ()
-(defun allout-write-file-hook-handler ()
- "Implement `allout-encrypt-unencrypted-on-saves' policy for file writes."
+;;;_ > allout-write-contents-hook-handler ()
+(defun allout-write-contents-hook-handler ()
+ "Implement `allout-encrypt-unencrypted-on-saves' for file writes
+
+Return nil if all goes smoothly, or else return an informative
+message if an error is encountered. The message will serve as a
+non-nil return on `write-contents-functions' to prevent saving of
+the buffer while it has decrypted content.
+
+This behavior depends on emacs versions that implement the
+`write-contents-functions' hook."
(if (or (not (allout-mode-p))
(not (boundp 'allout-encrypt-unencrypted-on-saves))
(not allout-encrypt-unencrypted-on-saves))
nil
- (let ((except-mark (and (equal allout-encrypt-unencrypted-on-saves
- 'except-current)
- (point-marker))))
- (if (save-excursion (goto-char (point-min))
- (allout-next-topic-pending-encryption except-mark))
- (progn
- (message "auto-encrypting pending topics")
- (sit-for 0)
- (condition-case failure
+ (if (save-excursion (goto-char (point-min))
+ (allout-next-topic-pending-encryption))
+ (progn
+ (message "auto-encrypting pending topics")
+ (sit-for 0)
+ (condition-case failure
+ (progn
(setq allout-after-save-decrypt
- (allout-encrypt-decrypted except-mark))
- (error (message
- "allout-write-file-hook-handler suppressing error %s"
- failure)
- (sit-for 2)))))
- ))
- nil)
-;;;_ > allout-auto-save-hook-handler ()
-(defun allout-auto-save-hook-handler ()
- "Implement `allout-encrypt-unencrypted-on-saves' policy for auto save."
-
- (if (and (allout-mode-p) allout-encrypt-unencrypted-on-saves)
- ;; Always implement 'except-current policy when enabled.
- (let ((allout-encrypt-unencrypted-on-saves 'except-current))
- (allout-write-file-hook-handler))))
+ (allout-encrypt-decrypted))
+ ;; aok - return nil:
+ nil)
+ (error
+ ;; whoops - probably some still-decrypted items, return non-nil:
+ (let ((text (format (concat "%s contents write inhibited due to"
+ " encrypted topic encryption error:"
+ " %s")
+ (buffer-name (current-buffer))
+ failure)))
+ (message text)(sit-for 2)
+ text)))))
+ ))
;;;_ > allout-after-saves-handler ()
(defun allout-after-saves-handler ()
"Decrypt topic encrypted for save, if it's currently being edited.
;;;###autoload
(define-minor-mode allout-mode
;;;_ . Doc string:
- "Toggle minor mode for controlling exposure and editing of text outlines.
-\\<allout-mode-map-value>
-
-Allout outline mode always runs as a minor mode.
+ "Toggle Allout outline mode.
+With a prefix argument ARG, enable Allout outline mode if ARG is
+positive, and disable it otherwise. If called from Lisp, enable
+the mode if ARG is omitted or nil.
-Allout outline mode provides extensive outline oriented
-formatting and manipulation. It enables structural editing of
-outlines, as well as navigation and exposure. It also is
-specifically aimed at accommodating syntax-sensitive text like
-programming languages. \(For example, see the allout code itself,
-which is organized as an allout outline.)
+\\<allout-mode-map-value>
+Allout outline mode is a minor mode that provides extensive
+outline oriented formatting and manipulation. It enables
+structural editing of outlines, as well as navigation and
+exposure. It also is specifically aimed at accommodating
+syntax-sensitive text like programming languages. \(For example,
+see the allout code itself, which is organized as an allout
+outline.)
In addition to typical outline navigation and exposure, allout includes:
`allout-structure-deleted-hook'
`allout-structure-shifted-hook'
`allout-after-copy-or-kill-hook'
+`allout-post-undo-hook'
Terminology
:lighter " Allout"
:keymap 'allout-mode-map
- (let ((write-file-hook-var-name (cond ((boundp 'write-file-functions)
- 'write-file-functions)
- ((boundp 'write-file-hooks)
- 'write-file-hooks)
- (t 'local-write-file-hooks)))
- (use-layout (if (listp allout-layout)
+ (let ((use-layout (if (listp allout-layout)
allout-layout
allout-default-layout)))
(remove-hook 'post-command-hook 'allout-post-command-business t)
(remove-hook 'before-change-functions 'allout-before-change-handler t)
(remove-hook 'isearch-mode-end-hook 'allout-isearch-end-handler t)
- (remove-hook write-file-hook-var-name
- 'allout-write-file-hook-handler t)
- (remove-hook 'auto-save-hook 'allout-auto-save-hook-handler t)
+ (remove-hook 'write-contents-functions
+ 'allout-write-contents-hook-handler t)
(remove-overlays (point-min) (point-max)
'category 'allout-exposure-category))
(add-hook 'post-command-hook 'allout-post-command-business nil t)
(add-hook 'before-change-functions 'allout-before-change-handler nil t)
(add-hook 'isearch-mode-end-hook 'allout-isearch-end-handler nil t)
- (add-hook write-file-hook-var-name 'allout-write-file-hook-handler
+ (add-hook 'write-contents-functions 'allout-write-contents-hook-handler
nil t)
- (add-hook 'auto-save-hook 'allout-auto-save-hook-handler nil t)
;; Stash auto-fill settings and adjust so custom allout auto-fill
;; func will be used if auto-fill is active or activated. (The
(save-current-buffer
(dolist (buffer (buffer-list))
(set-buffer buffer)
- (when (allout-mode-p) (allout-mode))))
+ (when (allout-mode-p) (allout-mode -1))))
;; continue standard unloading
nil)
See `allout-overlay-interior-modification-handler' for details."
- (when (and (allout-mode-p) undo-in-progress (allout-hidden-p))
- (allout-show-children))
+ (when (and (allout-mode-p) undo-in-progress)
+ (setq allout-just-did-undo t)
+ (if (allout-hidden-p)
+ (allout-show-children)))
;; allout-overlay-interior-modification-handler on an overlay handles
;; this in other emacs, via `allout-exposure-category's 'modification-hooks.
determine whether or not this one is determined to be aberrant.
If true, then the allout-recent-* settings are calibrated on the
-offspring that qaulifies it as aberrant, ie with depth that
+offspring that qualifies it as aberrant, ie with depth that
exceeds the topic by more than one."
;; This is most clearly understood when considering standard-prefix-leader
(defun allout-mark-active-p ()
"True if the mark is currently or always active."
;; `(cond (boundp...))' (or `(if ...)') invokes special byte-compiler
- ;; provisions, at least in fsf emacs to prevent warnings about lack of,
+ ;; provisions, at least in GNU Emacs to prevent warnings about lack of,
;; eg, region-active-p.
(cond ((boundp 'mark-active)
mark-active)
Set by `allout-pre-command-business', to support allout addons in
coordinating with allout activity.")
(make-variable-buffer-local 'allout-command-counter)
+;;;_ = allout-this-command-hid-text
+(defvar allout-this-command-hid-text nil
+ "True if the most recent allout-mode command hid any text.")
+(make-variable-buffer-local 'allout-this-command-hid-text)
;;;_ > allout-post-command-business ()
(defun allout-post-command-business ()
"Outline `post-command-hook' function.
- Implement (and clear) `allout-post-goto-bullet', for hot-spot
outline commands.
+- Move the cursor to the beginning of the entry if it is hidden
+ and collapsing activity just happened.
+
+- If the command we're following was an undo, check for change in
+ the status of encrypted items and adjust auto-save inhibitions
+ accordingly.
+
- Decrypt topic currently being edited if it was encrypted for a save."
- ; Apply any external change func:
(if (not (allout-mode-p)) ; In allout-mode.
nil
+ (when allout-just-did-undo
+ (setq allout-just-did-undo nil)
+ (run-hooks 'allout-post-undo-hook)
+ (cond ((and (= buffer-saved-size -1)
+ allout-auto-save-temporarily-disabled)
+ ;; user possibly undid a decryption, deinhibit auto-save:
+ (allout-maybe-resume-auto-save-info-after-encryption))
+ ((save-excursion
+ (save-restriction
+ (widen)
+ (goto-char (point-min))
+ (not (allout-next-topic-pending-encryption))))
+ ;; plain-text encrypted items are present, inhibit auto-save:
+ (allout-inhibit-auto-save-info-for-decryption (buffer-size)))))
+
(if (and (boundp 'allout-after-save-decrypt)
allout-after-save-decrypt)
(allout-after-saves-handler))
(if (and allout-post-goto-bullet
(allout-current-bullet-pos))
(progn (goto-char (allout-current-bullet-pos))
- (setq allout-post-goto-bullet nil)))
- ))
+ (setq allout-post-goto-bullet nil))
+ (when (and (allout-hidden-p) allout-this-command-hid-text)
+ (allout-beginning-of-current-entry)))))
;;;_ > allout-pre-command-business ()
(defun allout-pre-command-business ()
"Outline `pre-command-hook' function for outline buffers.
(if (not (allout-mode-p))
nil
- ;; Increment allout-command-counter
(setq allout-command-counter (1+ allout-command-counter))
+ (setq allout-this-command-hid-text nil)
;; Do hot-spot navigation.
(if (and (eq this-command 'self-insert-command)
(eq (point)(allout-current-bullet-pos)))
Fifth arg, NUMBER-CONTROL, matters only if `allout-numbered-bullet'
is non-nil *and* no specific INSTEAD was specified. Then
NUMBER-CONTROL non-nil forces prefix to either numbered or
-denumbered format, depending on the value of the sixth arg, INDEX.
+unnumbered format, depending on the value of the sixth arg, INDEX.
\(Note that NUMBER-CONTROL does *not* apply to level 1 topics. Sorry...)
sequential renumbering to not require this function counting back the
index for each successive sibling)."
;;;_ . Code:
- ;; The options are ordered in likely frequence of use, most common
+ ;; The options are ordered in likely frequency of use, most common
;; highest, least lowest. Ie, more likely to be doing prefix
;; adjustments than soliciting, and yet more than numbering.
;; Current prefix is least dominant, but most likely to be commonly
;;(if doing-beginning (goto-char doing-beginning))
(if (not (bobp))
;; We insert a newline char rather than using open-line to
- ;; avoid rear-stickiness inheritence of read-only property.
+ ;; avoid rear-stickiness inheritance of read-only property.
(progn (if (and (not (> depth ref-depth))
(not before))
(open-line 1)
(if (and (not (eobp))
(or (not (bolp))
(and (not (bobp))
- ;; bolp doesnt detect concealed
+ ;; bolp doesn't detect concealed
;; trailing newlines, compensate:
(save-excursion
(forward-char -1)
(not (allout-encrypted-topic-p)))
(allout-reindent-body current-depth new-depth))
+ (run-hook-with-args 'allout-exposure-change-hook mb me nil)
+
;; Recursively rectify successive siblings of orig topic if
;; caller elected for it:
(if do-successors
; and delete residual subj
; prefix digits and space:
(while (looking-at "[0-9]") (delete-char 1))
- (if (looking-at " ")
- (delete-char 1))))
+ (delete-char -1)
+ (if (not (eolp))
+ (forward-char))))
;; Assert new topic's bullet - minimal effort if unchanged:
(allout-rebullet-heading (string-to-char prefix-bullet)))
(exchange-point-and-mark))))
(when flag
(let ((o (make-overlay from to nil 'front-advance)))
(overlay-put o 'category 'allout-exposure-category)
+ (overlay-put o 'evaporate t)
(when (featurep 'xemacs)
(let ((props (symbol-plist 'allout-exposure-category)))
(while props
(condition-case nil
;; as of 2008-02-27, xemacs lacks modification-hooks
(overlay-put o (pop props) (pop props))
- (error nil)))))))
+ (error nil))))))
+ (setq allout-this-command-hid-text t))
(run-hook-with-args 'allout-exposure-change-hook from to flag))
;;;_ > allout-flag-current-subtree (flag)
(defun allout-flag-current-subtree (flag)
"invalid format" format))))
(list depth prefix strings))
result))
- ;; Reasses format, if any:
+ ;; Reassess format, if any:
(if (and format (listp format))
(cond ((= new-depth depth)
(setq format (cons (1+ (car format))
" shift it in to make it encryptable")))
(let* ((allout-buffer (current-buffer))
+ ;; for use with allout-auto-save-temporarily-disabled, if necessary:
+ (was-buffer-saved-size buffer-saved-size)
;; Assess location:
(bullet-pos allout-recent-prefix-beginning)
(after-bullet-pos (point))
;; Add the is-encrypted bullet qualifier:
(goto-char after-bullet-pos)
(insert "*"))))
+
+ ;; adjust buffer's auto-save eligibility:
+ (if was-encrypted
+ (allout-inhibit-auto-save-info-for-decryption was-buffer-saved-size)
+ (allout-maybe-resume-auto-save-info-after-encryption))
+
(run-hook-with-args 'allout-structure-added-hook
bullet-pos subtree-end))))
;;;_ > allout-encrypt-string (text decrypt allout-buffer keymode-cue
(epg-context-set-passphrase-callback
context #'epa-passphrase-callback-function)
context))
+
(encoding (with-current-buffer allout-buffer
buffer-file-coding-system))
(multibyte (with-current-buffer allout-buffer
result-text))
(error (concat "Encryption produced non-armored text, which"
"conflicts with allout mode -- reconfigure!")))
-
(t result-text))))
+;;;_ > allout-inhibit-auto-save-info-for-decryption
+(defun allout-inhibit-auto-save-info-for-decryption (was-buffer-saved-size)
+ "Temporarily prevent auto-saves in this buffer when an item is decrypted.
+
+WAS-BUFFER-SAVED-SIZE is the value of buffer-saved-size *before*
+the decryption."
+ (when (not (or (= buffer-saved-size -1) (= was-buffer-saved-size -1)))
+ (setq allout-auto-save-temporarily-disabled was-buffer-saved-size
+ buffer-saved-size -1)))
+;;;_ > allout-maybe-resume-auto-save-info-after-encryption ()
+(defun allout-maybe-resume-auto-save-info-after-encryption ()
+ "Restore auto-save info, *if* there are no topics pending encryption."
+ (when (and allout-auto-save-temporarily-disabled
+ (= buffer-saved-size -1)
+ (save-excursion
+ (save-restriction
+ (widen)
+ (goto-char (point-min))
+ (not (allout-next-topic-pending-encryption)))))
+ (setq buffer-saved-size allout-auto-save-temporarily-disabled
+ allout-auto-save-temporarily-disabled nil)))
+
;;;_ > allout-encrypted-topic-p ()
(defun allout-encrypted-topic-p ()
"True if the current topic is encryptable and encrypted."
(save-match-data (looking-at "\\*")))
)
)
-;;;_ > allout-next-topic-pending-encryption (&optional except-mark)
-(defun allout-next-topic-pending-encryption (&optional except-mark)
+;;;_ > allout-next-topic-pending-encryption ()
+(defun allout-next-topic-pending-encryption ()
"Return the point of the next topic pending encryption, or nil if none.
-EXCEPT-MARK identifies a point whose containing topics should be excluded
-from encryption. This supports 'except-current mode of
-`allout-encrypt-unencrypted-on-saves'.
-
Such a topic has the `allout-topic-encryption-bullet' without an
immediately following '*' that would mark the topic as being encrypted. It
must also have content."
(setq content-beg (point))
(backward-char 1)
(allout-end-of-subtree)
- (if (or (<= (point) content-beg)
- (and except-mark
- (<= content-beg except-mark)
- (>= (point) except-mark)))
+ (if (<= (point) content-beg)
;; Continue looking
(setq got nil)
;; Got it!
)
)
)
-;;;_ > allout-encrypt-decrypted (&optional except-mark)
-(defun allout-encrypt-decrypted (&optional except-mark)
+;;;_ > allout-encrypt-decrypted ()
+(defun allout-encrypt-decrypted ()
"Encrypt topics pending encryption except those containing exemption point.
-EXCEPT-MARK identifies a point whose containing topics should be excluded
-from encryption. This supports the `except-current' mode of
-`allout-encrypt-unencrypted-on-saves'.
-
If a topic that is currently being edited was encrypted, we return a list
containing the location of the topic and the location of the cursor just
before the topic was encrypted. This can be used, eg, to decrypt the topic
bo-subtree
editing-topic editing-point)
(goto-char (point-min))
- (while (allout-next-topic-pending-encryption except-mark)
+ (while (allout-next-topic-pending-encryption)
(setq was-modified (buffer-modified-p))
(when (save-excursion
(and (boundp 'allout-encrypt-unencrypted-on-saves)
HCoop / bpt / emacs.git / blobdiff