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[Emacs-diffs] Changes to emacs/lisp/allout.el
|
From: |
Eli Zaretskii |
|
Subject: |
[Emacs-diffs] Changes to emacs/lisp/allout.el |
|
Date: |
Fri, 17 Feb 2006 10:52:31 +0000 |
Index: emacs/lisp/allout.el
diff -u emacs/lisp/allout.el:1.65 emacs/lisp/allout.el:1.66
--- emacs/lisp/allout.el:1.65 Mon Feb 6 14:33:31 2006
+++ emacs/lisp/allout.el Fri Feb 17 10:52:30 2006
@@ -1,12 +1,12 @@
;;; allout.el --- extensive outline mode for use alone and with other modes
;; Copyright (C) 1992, 1993, 1994, 2001, 2002, 2003, 2004,
-;; 2005, 2006 Free Software Foundation, Inc.
+;; 2005 Free Software Foundation, Inc.
;; Author: Ken Manheimer <ken dot manheimer at gmail dot com>
;; Maintainer: Ken Manheimer <ken dot manheimer at gmail dot com>
;; Created: Dec 1991 - first release to usenet
-;; Version: 2.1
+;; Version: 2.2
;; Keywords: outlines wp languages
;; This file is part of GNU Emacs.
@@ -28,36 +28,39 @@
;;; Commentary:
-;; Allout outline mode provides extensive outline formatting and
-;; and manipulation beyond standard emacs outline mode. It provides
-;; for structured editing of outlines, as well as navigation and
-;; exposure. It also provides for syntax-sensitive text like
-;; programming languages. (For an example, see the allout code
-;; itself, which is organized in ;; an outline framework.)
+;; Allout outline minor mode provides extensive outline formatting and
+;; and manipulation beyond standard emacs outline mode. Some features:
;;
-;; Some features:
-;;
-;; - classic outline-mode topic-oriented navigation and exposure adjustment
-;; - topic-oriented editing including coherent topic and subtopic
-;; creation, promotion, demotion, cut/paste across depths, etc
-;; - incremental search with dynamic exposure and reconcealment of text
-;; - customizable bullet format enbles programming-language specific
-;; outlining, for ultimate code-folding editing. (allout code itself is
-;; formatted as an outline - do ESC-x eval-current-buffer in allout.el
-;; to try it out.)
-;; - configurable per-file initial exposure settings
-;; - symmetric-key and key-pair topic encryption, plus symmetric passphrase
+;; - Classic outline-mode topic-oriented navigation and exposure adjustment
+;; - Topic-oriented editing including coherent topic and subtopic
+;; creation, promotion, demotion, cut/paste across depths, etc.
+;; - Incremental search with dynamic exposure and reconcealment of text
+;; - Customizable bullet format - enables programming-language specific
+;; outlining, for code-folding editing. (Allout code itself is to try it;
+;; formatted as an outline - do ESC-x eval-current-buffer in allout.el; but
+;; emacs local file variables need to be enabled when the
+;; file was visited - see `enable-local-variables'.)
+;; - Configurable per-file initial exposure settings
+;; - Symmetric-key and key-pair topic encryption, plus symmetric passphrase
;; mnemonic support, with verification against an established passphrase
;; (using a stashed encrypted dummy string) and user-supplied hint
-;; maintenance. (see allout-toggle-current-subtree-encryption docstring.)
-;; - automatic topic-number maintenance
-;; - "hot-spot" operation, for single-keystroke maneuvering and
+;; maintenance. (See allout-toggle-current-subtree-encryption docstring.)
+;; - Automatic topic-number maintenance
+;; - "Hot-spot" operation, for single-keystroke maneuvering and
;; exposure control (see the allout-mode docstring)
-;; - easy rendering of exposed portions into numbered, latex, indented, etc
+;; - Easy rendering of exposed portions into numbered, latex, indented, etc
;; outline styles
+;; - Careful attention to whitespace - enabling blank lines between items
+;; and maintenance of hanging indentation (in paragraph auto-fill and
+;; across topic promotion and demotion) of topic bodies consistent with
+;; indentation of their topic header.
;;
;; and more.
;;
+;; See the `allout-mode' function's docstring for an introduction to the
+;; mode. The development version and helpful notes are available at
+;; http://myriadicity.net/Sundry/EmacsAllout .
+;;
;; The outline menubar additions provide quick reference to many of
;; the features, and see the docstring of the variable `allout-init'
;; for instructions on priming your emacs session for automatic
@@ -75,20 +78,18 @@
;;; Code:
-;;;_* Provide
-;(provide 'outline)
-(provide 'allout)
-
;;;_* Dependency autoloads
+(require 'overlay)
(eval-when-compile (progn (require 'pgg)
(require 'pgg-gpg)
- (fset 'allout-real-isearch-abort
- (symbol-function 'isearch-abort))
+ (require 'overlay)
))
(autoload 'pgg-gpg-symmetric-key-p "pgg-gpg"
"True if decoded armor MESSAGE-KEYS has symmetric encryption indicator.")
;;;_* USER CUSTOMIZATION VARIABLES:
+
+;;;_ > defgroup allout
(defgroup allout nil
"Extensive outline mode for use alone and with other modes."
:prefix "allout-"
@@ -151,7 +152,7 @@
will, modulo the above-mentioned conditions, cause the mode to be
activated when the file is visited, followed by the equivalent of
`\(allout-expose-topic 0 : -1 -1 0)'. \(This is the layout used for
-the allout.el, itself.)
+the allout.el source file.)
Also, allout's mode-specific provisions will make topic prefixes default
to the comment-start string, if any, of the language of the file. This
@@ -450,7 +451,7 @@
:group 'allout)
(make-variable-buffer-local 'allout-passphrase-hint-handling)
;;;_ = allout-encrypt-unencrypted-on-saves
-(defcustom allout-encrypt-unencrypted-on-saves 'except-current
+(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
@@ -485,8 +486,11 @@
;;;_ + Miscellaneous customization
;;;_ = allout-command-prefix
-(defcustom allout-command-prefix "\C-c"
- "*Key sequence to be used as prefix for outline mode command key bindings."
+(defcustom allout-command-prefix "\C-c "
+ "*Key sequence to be used as prefix for outline mode command key bindings.
+
+Default is '\C-c<space>'; just '\C-c' is more short-and-sweet, if you're
+willing to let allout use a bunch of \C-c keybindings."
:type 'string
:group 'allout)
@@ -538,23 +542,12 @@
("=t" allout-latexify-exposed)
("=p" allout-flatten-exposed-to-buffer)))
-;;;_ = allout-isearch-dynamic-expose
-(defcustom allout-isearch-dynamic-expose t
- "*Non-nil enable dynamic exposure of hidden incremental-search
-targets as they're encountered."
- :type 'boolean
- :group 'allout)
-(make-variable-buffer-local 'allout-isearch-dynamic-expose)
-
;;;_ = allout-use-hanging-indents
(defcustom allout-use-hanging-indents t
"*If non-nil, topic body text auto-indent defaults to indent of the header.
Ie, it is indented to be just past the header prefix. This is
relevant mostly for use with indented-text-mode, or other situations
-where auto-fill occurs.
-
-\[This feature no longer depends in any way on the `filladapt.el'
-lisp-archive package.\]"
+where auto-fill occurs."
:type 'boolean
:group 'allout)
(make-variable-buffer-local 'allout-use-hanging-indents)
@@ -597,7 +590,7 @@
;;;_ #1 Internal Outline Formatting and Configuration
;;;_ : Version
;;;_ = allout-version
-(defvar allout-version "2.1"
+(defvar allout-version "2.2"
"Version of currently loaded outline package. \(allout.el)")
;;;_ > allout-version
(defun allout-version (&optional here)
@@ -636,9 +629,9 @@
(defvar allout-line-boundary-regexp ()
"`allout-regexp' with outline style beginning-of-line anchor.
-\(Ie, C-j, *or* C-m, for prefixes of hidden topics). This is properly
-set when `allout-regexp' is produced by `set-allout-regexp', so
-that (match-beginning 2) and (match-end 2) delimit the prefix.")
+This is properly set when `allout-regexp' is produced by
+`set-allout-regexp', so that (match-beginning 2) and (match-end
+2) delimit the prefix.")
(make-variable-buffer-local 'allout-line-boundary-regexp)
;;;_ = allout-bob-regexp
(defvar allout-bob-regexp ()
@@ -753,11 +746,9 @@
cur-string
cur-len
cur-char
- cur-char-string
- index
- new-string)
+ index)
(while strings
- (setq new-string "") (setq index 0)
+ (setq index 0)
(setq cur-len (length (setq cur-string (symbol-value (car strings)))))
(while (< index cur-len)
(setq cur-char (aref cur-string index))
@@ -788,7 +779,7 @@
allout-primary-bullet
"+\\|\^l"))
(setq allout-line-boundary-regexp
- (concat "\\([\n\r]\\)\\(" allout-regexp "\\)"))
+ (concat "\\(\n\\)\\(" allout-regexp "\\)"))
(setq allout-bob-regexp
(concat "\\(\\`\\)\\(" allout-regexp "\\)"))
)
@@ -955,42 +946,28 @@
(setq allout-mode-prior-settings rebuild)))))
)
;;;_ : Mode-specific incidentals
-;;;_ = allout-pre-was-isearching nil
-(defvar allout-pre-was-isearching nil
- "Cue for isearch-dynamic-exposure mechanism, implemented in
-allout-pre- and -post-command-hooks.")
-(make-variable-buffer-local 'allout-pre-was-isearching)
-;;;_ = allout-isearch-prior-pos nil
-(defvar allout-isearch-prior-pos nil
- "Cue for isearch-dynamic-exposure tracking, used by
-`allout-isearch-expose'.")
-(make-variable-buffer-local 'allout-isearch-prior-pos)
-;;;_ = allout-isearch-did-quit
-(defvar allout-isearch-did-quit nil
- "Distinguishes isearch conclusion and cancellation.
-
-Maintained by allout-isearch-abort \(which is wrapped around the real
-isearch-abort), and monitored by allout-isearch-expose for action.")
-(make-variable-buffer-local 'allout-isearch-did-quit)
;;;_ > allout-unprotected (expr)
(defmacro allout-unprotected (expr)
- "Enable internal outline operations to alter read-only text."
- `(let ((was-inhibit-r-o inhibit-read-only))
- (unwind-protect
- (progn
- (setq inhibit-read-only t)
- ,expr)
- (setq inhibit-read-only was-inhibit-r-o)
- )
- )
- )
-;;;_ = allout-undo-aggregation
-(defvar allout-undo-aggregation 30
- "Amount of successive self-insert actions to bunch together per undo.
-
-This is purely a kludge variable, regulating the compensation for a bug in
-the way that `before-change-functions' and undo interact.")
-(make-variable-buffer-local 'allout-undo-aggregation)
+ "Enable internal outline operations to alter invisible text."
+ `(let ((inhibit-read-only t))
+ ,expr))
+;;;_ = allout-mode-hook
+(defvar allout-mode-hook nil
+ "*Hook that's run when allout mode starts.")
+;;;_ = allout-overlay-category
+(defvar allout-overlay-category nil
+ "Symbol for use in allout invisible-text overlays as the category.")
+;;;_ = allout-view-change-hook
+(defvar allout-view-change-hook nil
+ "*Hook that's run after allout outline visibility changes.")
+
+;;;_ = allout-outside-normal-auto-fill-function
+(defvar allout-outside-normal-auto-fill-function nil
+ "Value of normal-auto-fill-function outside of allout mode.
+
+Used by allout-auto-fill to do the mandated normal-auto-fill-function
+wrapped within allout's automatic fill-prefix setting.")
+(make-variable-buffer-local 'allout-outside-normal-auto-fill-function)
;;;_ = file-var-bug hack
(defvar allout-v18/19-file-var-hack nil
"Horrible hack used to prevent invalid multiple triggering of outline
@@ -1059,7 +1036,7 @@
(allout-next-topic-pending-encryption except-mark))
(progn
(message "auto-encrypting pending topics")
- (sit-for 2)
+ (sit-for 0)
(condition-case failure
(setq allout-after-save-decrypt
(allout-encrypt-decrypted except-mark))
@@ -1184,7 +1161,6 @@
((message
"Outline mode auto-activation and -layout enabled.")
'full)))))))
-
;;;_ > allout-setup-menubar ()
(defun allout-setup-menubar ()
"Populate the current buffer's menubar with `allout-mode' stuff."
@@ -1197,12 +1173,37 @@
(setq cur (car menus)
menus (cdr menus))
(easy-menu-add cur))))
+;;;_ > allout-set-overlay-category
+(defun allout-set-overlay-category ()
+ "Set the properties of the allout invisible-text overlay."
+ (setplist 'allout-overlay-category nil)
+ (put 'allout-overlay-category 'invisible 'allout)
+ (put 'allout-overlay-category 'evaporate t)
+ ;; XXX We use isearch-open-invisible *and* isearch-mode-end-hook. The
+ ;; latter would be sufficient, but it seems that a separate behavior -
+ ;; the _transient_ opening of invisible text during isearch - is keyed to
+ ;; presence of the isearch-open-invisible property - even though this
+ ;; property controls the isearch _arrival_ behavior. This is the case at
+ ;; least in emacs 21, 22.0, and xemacs 21.4.
+ (put 'allout-overlay-category 'isearch-open-invisible
+ 'allout-isearch-end-handler)
+ (if (featurep 'xemacs)
+ (put 'allout-overlay-category 'start-open t)
+ (put 'allout-overlay-category 'insert-in-front-hooks
+ '(allout-overlay-insert-in-front-handler)))
+ (if (featurep 'xemacs)
+ (progn (make-variable-buffer-local 'before-change-functions)
+ (add-hook 'before-change-functions
+ 'allout-before-change-handler))
+ (put 'allout-overlay-category 'modification-hooks
+ '(allout-overlay-interior-modification-handler))))
;;;_ > allout-mode (&optional toggle)
;;;_ : Defun:
;;;###autoload
(defun allout-mode (&optional toggle)
;;;_ . Doc string:
"Toggle minor mode for controlling exposure and editing of text outlines.
+\\<allout-mode-map>
Optional arg forces mode to re-initialize iff arg is positive num or
symbol. Allout outline mode always runs as a minor mode.
@@ -1244,62 +1245,69 @@
\\[allout-forward-current-level] allout-forward-current-level |
\\[allout-show-current-entry] allout-show-current-entry
\\[allout-backward-current-level] allout-backward-current-level |
\\[allout-show-all] allout-show-all
\\[allout-end-of-entry] allout-end-of-entry
-\\[allout-beginning-of-current-entry,] allout-beginning-of-current-entry,
alternately, goes to hot-spot
+\\[allout-beginning-of-current-entry] allout-beginning-of-current-entry,
alternately, goes to hot-spot
Topic Header Production:
-----------------------
-\\[allout-open-sibtopic] allout-open-sibtopic Create a new sibling after
current topic.
-\\[allout-open-subtopic] allout-open-subtopic ... an offspring of current
topic.
-\\[allout-open-supertopic] allout-open-supertopic ... a sibling of the
current topic's parent.
+\\[allout-open-sibtopic] allout-open-sibtopic Create a new sibling
after current topic.
+\\[allout-open-subtopic] allout-open-subtopic ... an offspring of
current topic.
+\\[allout-open-supertopic] allout-open-supertopic ... a sibling of the
current topic's parent.
Topic Level and Prefix Adjustment:
---------------------------------
-\\[allout-shift-in] allout-shift-in Shift current topic and all offspring
deeper.
-\\[allout-shift-out] allout-shift-out ... less deep.
-\\[allout-rebullet-current-heading] allout-rebullet-current-heading Prompt
for alternate bullet for
+\\[allout-shift-in] allout-shift-in Shift current topic and all offspring
deeper.
+\\[allout-shift-out] allout-shift-out ... less deep.
+\\[allout-rebullet-current-heading] allout-rebullet-current-heading Prompt
for alternate bullet for
current topic.
\\[allout-rebullet-topic] allout-rebullet-topic Reconcile bullets of
topic and its offspring
- distinctive bullets are not changed, others
alternated according to nesting depth.
-\\[allout-number-siblings] allout-number-siblings Number bullets of topic
and siblings - the
+\\[allout-number-siblings] allout-number-siblings Number bullets of topic
and siblings - the
offspring are not affected. With repeat
count, revoke numbering.
Topic-oriented Killing and Yanking:
----------------------------------
-\\[allout-kill-topic] allout-kill-topic Kill current topic, including
offspring.
-\\[allout-kill-line] allout-kill-line Like kill-line, but reconciles
numbering, etc.
-\\[allout-yank] allout-yank Yank, adjusting depth of yanked
topic to
+\\[allout-kill-topic] allout-kill-topic Kill current topic, including
offspring.
+\\[allout-kill-line] allout-kill-line Like kill-line, but reconciles
numbering, etc.
+\\[allout-yank] allout-yank Yank, adjusting depth of yanked
topic to
depth of heading if yanking into bare topic
heading (ie, prefix sans text).
-\\[allout-yank-pop] allout-yank-pop Is to allout-yank as yank-pop
is to yank
+\\[allout-yank-pop] allout-yank-pop Is to allout-yank as yank-pop is to yank
+
+ Topic-oriented Encryption:
+ -------------------------
+\\[allout-toggle-current-subtree-encryption]
allout-toggle-current-subtree-encryption Encrypt/Decrypt topic content
Misc commands:
-------------
M-x outlineify-sticky Activate outline mode for current buffer,
and establish a default file-var setting
for `allout-layout'.
-\\[allout-mark-topic] allout-mark-topic
+\\[allout-mark-topic] allout-mark-topic
\\[allout-copy-exposed-to-buffer] allout-copy-exposed-to-buffer
Duplicate outline, sans concealed text, to
buffer with name derived from derived from that
of current buffer - \"*BUFFERNAME exposed*\".
-\\[allout-flatten-exposed-to-buffer] allout-flatten-exposed-to-buffer
+\\[allout-flatten-exposed-to-buffer] allout-flatten-exposed-to-buffer
Like above 'copy-exposed', but convert topic
prefixes to section.subsection... numeric
format.
-ESC ESC (allout-init t) Setup Emacs session for outline mode
+\\[eval-expression] (allout-init t) Setup Emacs session for outline mode
auto-activation.
- Encrypted Entries
+ Topic Encryption
-Outline mode supports easily togglable gpg encryption of topics, with
-niceties like support for symmetric and key-pair modes, passphrase timeout,
-passphrase consistency checking, user-provided hinting for symmetric key
-mode, and auto-encryption of topics pending encryption on save. The aim is
-to enable reliable topic privacy while preventing accidents like neglected
-encryption, encryption with a mistaken passphrase, forgetting which
-passphrase was used, and other practical pitfalls.
+Outline mode supports gpg encryption of topics, with support for
+symmetric and key-pair modes, passphrase timeout, passphrase
+consistency checking, user-provided hinting for symmetric key
+mode, and auto-encryption of topics pending encryption on save.
+\(Topics pending encryption are, by default, automatically
+encrypted during file saves; if you're editing the contents of
+such a topic, it is automatically decrypted for continued
+editing.) The aim is reliable topic privacy while preventing
+accidents like neglected encryption before saves, forgetting
+which passphrase was used, and other practical pitfalls.
See `allout-toggle-current-subtree-encryption' function docstring and
`allout-encrypt-unencrypted-on-saves' customization variable for details.
@@ -1309,22 +1317,21 @@
Hot-spot operation provides a means for easy, single-keystroke outline
navigation and exposure control.
-\\<allout-mode-map>
When the text cursor is positioned directly on the bullet character of
a topic, regular characters (a to z) invoke the commands of the
corresponding allout-mode keymap control chars. For example, \"f\"
-would invoke the command typically bound to \"C-c C-f\"
+would invoke the command typically bound to \"C-c<space>C-f\"
\(\\[allout-forward-current-level] `allout-forward-current-level').
-Thus, by positioning the cursor on a topic bullet, you can execute
-the outline navigation and manipulation commands with a single
-keystroke. Non-literal chars never get this special translation, so
-you can use them to get away from the hot-spot, and back to normal
-operation.
+Thus, by positioning the cursor on a topic bullet, you can
+execute the outline navigation and manipulation commands with a
+single keystroke. Regular navigation keys (eg, \\[forward-char],
\\[next-line]) never get
+this special translation, so you can use them to get out of the
+hot-spot and back to normal operation.
Note that the command `allout-beginning-of-current-entry'
\(\\[allout-beginning-of-current-entry]\)
will move to the hot-spot when the cursor is already located at the
-beginning of the current entry, so you can simply hit
\\[allout-beginning-of-current-entry]
+beginning of the current entry, so you usually can hit
\\[allout-beginning-of-current-entry]
twice in a row to get to the hot-spot.
Terminology
@@ -1332,7 +1339,7 @@
Topic hierarchy constituents - TOPICS and SUBTOPICS:
TOPIC: A basic, coherent component of an Emacs outline. It can
- contain other topics, and it can be subsumed by other topics,
+ contain and be contained by other topics.
CURRENT topic:
The visible topic most immediately containing the cursor.
DEPTH: The degree of nesting of a topic; it increases with
@@ -1376,13 +1383,13 @@
docstring for more detail.
PREFIX-PADDING:
Spaces or asterisks which separate the prefix-lead and the
- bullet, according to the depth of the topic.
+ bullet, determining the depth of the topic.
BULLET: A character at the end of the topic prefix, it must be one of
the characters listed on `allout-plain-bullets-string' or
`allout-distinctive-bullets-string'. (See the documentation
for these variables for more details.) The default choice of
- bullet when generating varies in a cycle with the depth of the
- topic.
+ bullet when generating topics varies in a cycle with the depth of
+ the topic.
ENTRY: The text contained in a topic before any offspring.
BODY: Same as ENTRY.
@@ -1393,7 +1400,6 @@
CONCEALED:
Topics and entry text whose display is inhibited. Contiguous
units of concealed text is represented by `...' ellipses.
- (Ref the `selective-display' var.)
Concealed topics are effectively collapsed within an ancestor.
CLOSED: A topic whose immediate offspring and body-text is concealed.
@@ -1415,9 +1421,11 @@
;; allout-mode already called once during this complex command?
(same-complex-command (eq allout-v18/19-file-var-hack
(car command-history)))
- (write-file-hook-var-name (if (boundp 'write-file-functions)
- 'write-file-functions
- 'local-write-file-hooks))
+ (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)))
do-layout
)
@@ -1465,9 +1473,8 @@
(progn
(allout-resumptions 'allout-primary-bullet)
(allout-resumptions 'allout-old-style-prefixes)))
- (allout-resumptions 'selective-display)
- (if (and (boundp 'before-change-functions) before-change-functions)
- (allout-resumptions 'before-change-functions))
+ ;;(allout-resumptions 'selective-display)
+ (remove-from-invisibility-spec '(allout . t))
(set write-file-hook-var-name
(delq 'allout-write-file-hook-handler
(symbol-value write-file-hook-var-name)))
@@ -1476,9 +1483,8 @@
auto-save-hook))
(allout-resumptions 'paragraph-start)
(allout-resumptions 'paragraph-separate)
- (allout-resumptions (if (string-match "^18" emacs-version)
- 'auto-fill-hook
- 'auto-fill-function))
+ (allout-resumptions 'auto-fill-function)
+ (allout-resumptions 'normal-auto-fill-function)
(allout-resumptions 'allout-former-auto-filler)
(setq allout-mode nil))
@@ -1490,6 +1496,8 @@
(allout-resumptions 'allout-primary-bullet '("*"))
(allout-resumptions 'allout-old-style-prefixes '(()))))
+ (allout-set-overlay-category) ; Doesn't hurt to redo this.
+
(allout-infer-header-lead)
(allout-infer-body-reindent)
@@ -1525,25 +1533,24 @@
(current-local-map)))
)
- ; selective-display is the
- ; emacs conditional exposure
- ; mechanism:
- (allout-resumptions 'selective-display '(t))
+ (add-to-invisibility-spec '(allout . t))
+ (make-local-variable 'line-move-ignore-invisible)
+ (setq line-move-ignore-invisible t)
(add-hook 'pre-command-hook 'allout-pre-command-business)
(add-hook 'post-command-hook 'allout-post-command-business)
+ (add-hook 'isearch-mode-end-hook 'allout-isearch-end-handler)
(add-hook write-file-hook-var-name 'allout-write-file-hook-handler)
(add-hook 'auto-save-hook 'allout-auto-save-hook-handler)
; Custom auto-fill func, to support
; respect for topic headline,
; hanging-indents, etc:
- (let* ((fill-func-var (if (string-match "^18" emacs-version)
- 'auto-fill-hook
- 'auto-fill-function))
- (fill-func (symbol-value fill-func-var)))
- ;; Register prevailing fill func for use by allout-auto-fill:
- (allout-resumptions 'allout-former-auto-filler (list fill-func))
- ;; Register allout-auto-fill to be used if filling is active:
- (allout-resumptions fill-func-var '(allout-auto-fill)))
+ ;; Register prevailing fill func for use by allout-auto-fill:
+ (allout-resumptions 'allout-former-auto-filler (list auto-fill-function))
+ ;; Register allout-auto-fill to be used if filling is active:
+ (allout-resumptions 'auto-fill-function '(allout-auto-fill))
+ (allout-resumptions 'allout-outside-normal-auto-fill-function
+ (list normal-auto-fill-function))
+ (allout-resumptions 'normal-auto-fill-function '(allout-auto-fill))
;; Paragraphs are broken by topic headlines.
(make-local-variable 'paragraph-start)
(allout-resumptions 'paragraph-start
@@ -1563,10 +1570,6 @@
(if allout-layout
(setq do-layout t))
- (if (and allout-isearch-dynamic-expose
- (not (fboundp 'allout-real-isearch-abort)))
- (allout-enwrap-isearch))
-
(run-hooks 'allout-mode-hook)
(setq allout-mode t))
@@ -1605,6 +1608,82 @@
;;;_ > allout-minor-mode
(defalias 'allout-minor-mode 'allout-mode)
+;;;_ > allout-overlay-insert-in-front-handler (ol after beg end
+;;; &optional prelen)
+(defun allout-overlay-insert-in-front-handler (ol after beg end
+ &optional prelen)
+ "Shift the overlay so stuff inserted in front of it are excluded."
+ (if after
+ (move-overlay ol (1+ beg) (overlay-end ol))))
+;;;_ > allout-overlay-interior-modification-handler (ol after beg end
+;;; &optional prelen)
+(defun allout-overlay-interior-modification-handler (ol after beg end
+ &optional prelen)
+ "Get confirmation before making arbitrary changes to invisible text.
+
+We expose the invisible text and ask for confirmation. Refusal or
+keyboard-quit abandons the changes, with keyboard-quit additionally
+reclosing the opened text.
+
+No confirmation is necessary when inhibit-read-only is set - eg, allout
+internal functions use this feature cohesively bunch changes."
+
+ (when (and (not inhibit-read-only) (not after))
+ (let ((start (point))
+ (ol-start (overlay-start ol))
+ (ol-end (overlay-end ol))
+ (msg "Change within concealed text disallowed.")
+ opened
+ first)
+ (goto-char beg)
+ (while (< (point) end)
+ (when (allout-hidden-p)
+ (allout-show-to-offshoot)
+ (if (allout-hidden-p)
+ (save-excursion (forward-char 1)
+ (allout-show-to-offshoot)))
+ (when (not first)
+ (setq opened t)
+ (setq first (point))))
+ (goto-char (if (featurep 'xemacs)
+ (next-property-change (1+ (point)) nil end)
+ (next-char-property-change (1+ (point)) end))))
+ (when first
+ (goto-char first)
+ (condition-case nil
+ (if (not
+ (yes-or-no-p
+ (substitute-command-keys
+ (concat "Modify this concealed text? (\"no\" aborts,"
+ " \\[keyboard-quit] also reconceals) "))))
+ (progn (goto-char start)
+ (error "Concealed-text change refused.")))
+ (quit (allout-flag-region ol-start ol-end nil)
+ (allout-flag-region ol-start ol-end t)
+ (error "Concealed-text change abandoned, text reconcealed."))))
+ (goto-char start))))
+;;;_ > allout-before-change-handler (beg end)
+(defun allout-before-change-handler (beg end)
+ "Protect against changes to invisible text.
+
+See allout-overlay-interior-modification-handler for details.
+
+This before-change handler is used only where modification-hooks
+overlay property is not supported."
+ (if (not allout-mode)
+ nil
+ (allout-overlay-interior-modification-handler nil nil beg end nil)))
+;;;_ > allout-isearch-end-handler (&optional overlay)
+(defun allout-isearch-end-handler (&optional overlay)
+ "Reconcile allout outline exposure on arriving in hidden text after isearch.
+
+Optional OVERLAY parameter is for when this function is used by
+`isearch-open-invisible' overlay property. It is otherwise unused, so this
+function can also be used as an `isearch-mode-end-hook'."
+
+ (if (and (allout-mode-p) (allout-hidden-p))
+ (allout-show-to-offshoot)))
+
;;;_ #3 Internal Position State-Tracking - "allout-recent-*" funcs
;;; All the basic outline functions that directly do string matches to
;;; evaluate heading prefix location set the variables
@@ -1668,6 +1747,10 @@
;;;_ #4 Navigation
;;;_ - Position Assessment
+;;;_ > allout-hidden-p (&optional pos)
+(defsubst allout-hidden-p (&optional pos)
+ "Non-nil if the character after point is invisible."
+ (get-char-property (or pos (point)) 'invisible))
;;;_ : Location Predicates
;;;_ > allout-on-current-heading-p ()
(defun allout-on-current-heading-p ()
@@ -1675,7 +1758,7 @@
Actually, returns prefix beginning point."
(save-excursion
- (beginning-of-line)
+ (allout-beginning-of-current-line)
(and (looking-at allout-regexp)
(allout-prefix-data (match-beginning 0) (match-end 0)))))
;;;_ > allout-on-heading-p ()
@@ -1686,39 +1769,36 @@
(and (save-excursion (beginning-of-line)
(looking-at allout-regexp))
(= (point)(save-excursion (allout-end-of-prefix)(point)))))
-;;;_ > allout-hidden-p ()
-(defmacro allout-hidden-p ()
- "True if point is in hidden text."
- '(save-excursion
- (and (re-search-backward "[\n\r]" () t)
- (= ?\r (following-char)))))
-;;;_ > allout-visible-p ()
-(defmacro allout-visible-p ()
- "True if point is not in hidden text."
- (interactive)
- '(not (allout-hidden-p)))
;;;_ : Location attributes
;;;_ > allout-depth ()
-(defsubst allout-depth ()
- "Like `allout-current-depth', but respects hidden as well as visible topics."
+(defun allout-depth ()
+ "Return depth of topic most immediately containing point.
+
+Return zero if point is not within any topic.
+
+Like `allout-current-depth', but respects hidden as well as visible topics."
(save-excursion
- (if (allout-goto-prefix)
- (allout-recent-depth)
- (progn
- ;; Oops, no prefix, zero prefix data:
- (allout-prefix-data (point)(point))
- ;; ... and return 0:
- 0))))
+ (let ((start-point (point)))
+ (if (and (allout-goto-prefix)
+ (not (< start-point (point))))
+ (allout-recent-depth)
+ (progn
+ ;; Oops, no prefix, zero prefix data:
+ (allout-prefix-data (point)(point))
+ ;; ... and return 0:
+ 0)))))
;;;_ > allout-current-depth ()
-(defmacro allout-current-depth ()
- "Return nesting depth of visible topic most immediately containing point."
- '(save-excursion
- (if (allout-back-to-current-heading)
- (max 1
- (- allout-recent-prefix-end
- allout-recent-prefix-beginning
- allout-header-subtraction))
- 0)))
+(defun allout-current-depth ()
+ "Return depth of visible topic most immediately containing point.
+
+Return zero if point is not within any topic."
+ (save-excursion
+ (if (allout-back-to-current-heading)
+ (max 1
+ (- allout-recent-prefix-end
+ allout-recent-prefix-beginning
+ allout-header-subtraction))
+ 0)))
;;;_ > allout-get-current-prefix ()
(defun allout-get-current-prefix ()
"Topic prefix of the current topic."
@@ -1734,7 +1814,7 @@
;;;_ > allout-current-bullet ()
(defun allout-current-bullet ()
"Return bullet of current (visible) topic heading, or none if none found."
- (condition-case err
+ (condition-case nil
(save-excursion
(allout-back-to-current-heading)
(buffer-substring (- allout-recent-prefix-end 1)
@@ -1783,7 +1863,31 @@
rev-sibls)
)
-;;;_ - Navigation macros
+;;;_ - Navigation routines
+;;;_ > allout-beginning-of-current-line ()
+(defun allout-beginning-of-current-line ()
+ "Like beginning of line, but to visible text."
+
+ ;; XXX We would use `(move-beginning-of-line 1)', but it gets
+ ;; stuck on some hidden newlines, eg at column 80, as of GNU Emacs 22.0.50.
+ ;; Conversely, `beginning-of-line' can make no progress in other
+ ;; situations. Both are necessary, in the order used below.
+ (move-beginning-of-line 1)
+ (beginning-of-line)
+ (while (or (not (bolp)) (allout-hidden-p))
+ (beginning-of-line)
+ (if (or (allout-hidden-p) (not (bolp)))
+ (forward-char -1))))
+;;;_ > allout-end-of-current-line ()
+(defun allout-end-of-current-line ()
+ "Move to the end of line, past concealed text if any."
+ ;; XXX This is for symmetry with `allout-beginning-of-current-line' -
+ ;; `move-end-of-line' doesn't suffer the same problem as
+ ;; `move-beginning-of-line'.
+ (end-of-line)
+ (while (allout-hidden-p)
+ (end-of-line)
+ (if (allout-hidden-p) (forward-char 1))))
;;;_ > allout-next-heading ()
(defsubst allout-next-heading ()
"Move to the heading for the topic \(possibly invisible) before this one.
@@ -1798,7 +1902,7 @@
(goto-char (or (match-beginning 2)
allout-recent-prefix-beginning))
(or (match-end 2) allout-recent-prefix-end))))
-;;;_ : allout-this-or-next-heading
+;;;_ > allout-this-or-next-heading
(defun allout-this-or-next-heading ()
"Position cursor on current or next heading."
;; A throwaway non-macro that is defined after allout-next-heading
@@ -1822,6 +1926,21 @@
(goto-char (or (match-beginning 2)
allout-recent-prefix-beginning))
(or (match-end 2) allout-recent-prefix-end))))))
+;;;_ > allout-get-invisibility-overlay ()
+(defun allout-get-invisibility-overlay ()
+ "Return the overlay at point that dictates allout invisibility."
+ (let ((overlays (overlays-at (point)))
+ got)
+ (while (and overlays (not got))
+ (if (equal (overlay-get (car overlays) 'invisible) 'allout)
+ (setq got (car overlays))))
+ got))
+;;;_ > allout-back-to-visible-text ()
+(defun allout-back-to-visible-text ()
+ "Move to most recent prior character that is visible, and return point."
+ (if (allout-hidden-p)
+ (goto-char (overlay-start (allout-get-invisibility-overlay))))
+ (point))
;;;_ - Subtree Charting
;;;_ " These routines either produce or assess charts, which are
@@ -1912,11 +2031,11 @@
; the original level. Position
; to the end of it:
(progn (and (not (eobp)) (forward-char -1))
- (and (memq (preceding-char) '(?\n ?\r))
- (memq (aref (buffer-substring (max 1 (- (point) 3))
- (point))
- 1)
- '(?\n ?\r))
+ (and (= (preceding-char) ?\n)
+ (= (aref (buffer-substring (max 1 (- (point) 3))
+ (point))
+ 1)
+ ?\n)
(forward-char -1))
(setq allout-recent-end-of-subtree (point))))
@@ -1954,7 +2073,7 @@
(if further (setq result (append further result)))
(setq chart (cdr chart)))
(goto-char here)
- (if (= (preceding-char) ?\r)
+ (if (allout-hidden-p)
(setq result (cons here result)))
(setq chart (cdr chart))))
result))
@@ -2003,7 +2122,7 @@
(let (done)
(while (and (not done)
- (re-search-backward "[\n\r]" nil 1))
+ (search-backward "\n" nil 1))
(forward-char 1)
(if (looking-at allout-regexp)
(setq done (allout-prefix-data (match-beginning 0)
@@ -2042,19 +2161,30 @@
(1- (match-end 0))))
;;;_ > allout-back-to-current-heading ()
(defun allout-back-to-current-heading ()
- "Move to heading line of current topic, or beginning if already on the line."
+ "Move to heading line of current topic, or beginning if already on the line.
- (beginning-of-line)
- (prog1 (or (allout-on-current-heading-p)
- (and (re-search-backward (concat "^\\(" allout-regexp "\\)")
- nil
- 'move)
- (allout-prefix-data (match-beginning 1)(match-end 1))))
- (if (interactive-p) (allout-end-of-prefix))))
+Return value of point, unless we started outside of (before any) topics,
+in which case we return nil."
+
+ (allout-beginning-of-current-line)
+ (if (or (allout-on-current-heading-p)
+ (and (re-search-backward (concat "^\\(" allout-regexp "\\)")
+ nil 'move)
+ (progn (while (allout-hidden-p)
+ (allout-beginning-of-current-line)
+ (if (not (looking-at allout-regexp))
+ (re-search-backward (concat
+ "^\\(" allout-regexp "\\)")
+ nil 'move)))
+ (allout-prefix-data (match-beginning 1)
+ (match-end 1)))))
+ (if (interactive-p)
+ (allout-end-of-prefix)
+ (point))))
;;;_ > allout-back-to-heading ()
(defalias 'allout-back-to-heading 'allout-back-to-current-heading)
-;;;_ > allout-pre-next-preface ()
-(defun allout-pre-next-preface ()
+;;;_ > allout-pre-next-prefix ()
+(defun allout-pre-next-prefix ()
"Skip forward to just before the next heading line.
Returns that character position."
@@ -2062,12 +2192,16 @@
(if (re-search-forward allout-line-boundary-regexp nil 'move)
(prog1 (goto-char (match-beginning 0))
(allout-prefix-data (match-beginning 2)(match-end 2)))))
-;;;_ > allout-end-of-subtree (&optional current)
-(defun allout-end-of-subtree (&optional current)
+;;;_ > allout-end-of-subtree (&optional current include-trailing-blank)
+(defun allout-end-of-subtree (&optional current include-trailing-blank)
"Put point at the end of the last leaf in the containing topic.
-If optional CURRENT is true (default false), then put point at the end of
-the containing visible topic.
+Optional CURRENT means put point at the end of the containing
+visible topic.
+
+Optional INCLUDE-TRAILING-BLANK means include a trailing blank line, if
+any, as part of the subtree. Otherwise, that trailing blank will be
+excluded as delimiting whitespace between topics.
Returns the value of point."
(interactive "P")
@@ -2080,18 +2214,21 @@
(> (allout-recent-depth) level))
(allout-next-heading))
(and (not (eobp)) (forward-char -1))
- (and (memq (preceding-char) '(?\n ?\r))
- (memq (aref (buffer-substring (max 1 (- (point) 3)) (point)) 1)
- '(?\n ?\r))
+ (if (and (not include-trailing-blank) (= ?\n (preceding-char)))
(forward-char -1))
(setq allout-recent-end-of-subtree (point))))
-;;;_ > allout-end-of-current-subtree ()
-(defun allout-end-of-current-subtree ()
+;;;_ > allout-end-of-current-subtree (&optional include-trailing-blank)
+(defun allout-end-of-current-subtree (&optional include-trailing-blank)
+
"Put point at end of last leaf in currently visible containing topic.
+Optional INCLUDE-TRAILING-BLANK means include a trailing blank line, if
+any, as part of the subtree. Otherwise, that trailing blank will be
+excluded as delimiting whitespace between topics.
+
Returns the value of point."
(interactive)
- (allout-end-of-subtree t))
+ (allout-end-of-subtree t include-trailing-blank))
;;;_ > allout-beginning-of-current-entry ()
(defun allout-beginning-of-current-entry ()
"When not already there, position point at beginning of current topic header.
@@ -2104,18 +2241,23 @@
(if (and (interactive-p)
(= (point) start-point))
(goto-char (allout-current-bullet-pos)))))
-;;;_ > allout-end-of-entry ()
-(defun allout-end-of-entry ()
- "Position the point at the end of the current topics' entry."
+;;;_ > allout-end-of-entry (&optional inclusive)
+(defun allout-end-of-entry (&optional inclusive)
+ "Position the point at the end of the current topics' entry.
+
+Optional INCLUSIVE means also include trailing empty line, if any. When
+unset, whitespace between items separates them even when the items are
+collapsed."
(interactive)
- (prog1 (allout-pre-next-preface)
- (if (and (not (bobp))(looking-at "^$"))
- (forward-char -1))))
+ (allout-pre-next-prefix)
+ (if (and (not inclusive) (not (bobp)) (= ?\n (preceding-char)))
+ (forward-char -1))
+ (point))
;;;_ > allout-end-of-current-heading ()
(defun allout-end-of-current-heading ()
(interactive)
(allout-beginning-of-current-entry)
- (re-search-forward "[\n\r]" nil t)
+ (search-forward "\n" nil t)
(forward-char -1))
(defalias 'allout-end-of-heading 'allout-end-of-current-heading)
;;;_ > allout-get-body-text ()
@@ -2123,13 +2265,13 @@
"Return the unmangled body text of the topic immediately containing point."
(save-excursion
(allout-end-of-prefix)
- (if (not (re-search-forward "[\n\r]" nil t))
+ (if (not (search-forward "\n" nil t))
nil
(backward-char 1)
(let ((pre-body (point)))
(if (not pre-body)
nil
- (allout-end-of-entry)
+ (allout-end-of-entry t)
(if (not (= pre-body (point)))
(buffer-substring-no-properties (1+ pre-body) (point))))
)
@@ -2189,8 +2331,7 @@
(allout-back-to-current-heading)
(let ((present-level (allout-recent-depth))
(last-good (point))
- failed
- return)
+ failed)
;; Loop for iterating arg:
(while (and (> (allout-recent-depth) 1)
(> arg 0)
@@ -2260,11 +2401,9 @@
(if (or (bobp) (eobp))
nil
(forward-char -1))
- (if (or (bobp) (not (memq (preceding-char) '(?\n ?\r))))
+ (if (or (bobp) (not (= ?\n (preceding-char))))
nil
- (forward-char -1)
- (if (or (bobp) (not (memq (preceding-char) '(?\n ?\r))))
- (forward-char -1)))
+ (forward-char -1))
(point))
;;;_ > allout-beginning-of-level ()
(defun allout-beginning-of-level ()
@@ -2282,19 +2421,19 @@
(defun allout-next-visible-heading (arg)
"Move to the next ARG'th visible heading line, backward if arg is negative.
-Move as far as possible in indicated direction \(beginning or end of
-buffer) if headings are exhausted."
+Move to buffer limit in indicated direction if headings are exhausted."
(interactive "p")
(let* ((backward (if (< arg 0) (setq arg (* -1 arg))))
(step (if backward -1 1))
- (start-point (point))
prev got)
(while (> arg 0) ; limit condition
(while (and (not (if backward (bobp)(eobp))) ; boundary condition
;; Move, skipping over all those concealed lines:
- (< -1 (forward-line step))
+ (prog1 (condition-case nil (or (line-move step) t)
+ (error nil))
+ (allout-beginning-of-current-line))
(not (setq got (looking-at allout-regexp)))))
;; Register this got, it may be the last:
(if got (setq prev got))
@@ -2323,7 +2462,6 @@
Returns resulting position, else nil if none found."
(interactive "p")
(let ((start-depth (allout-current-depth))
- (start-point (point))
(start-arg arg)
(backward (> 0 arg))
last-depth
@@ -2386,51 +2524,17 @@
- Implement (and clear) `allout-post-goto-bullet', for hot-spot
outline commands.
-- Decrypt topic currently being edited if it was encrypted for a save.
-
-- Massage buffer-undo-list so successive, standard character self-inserts are
- aggregated. This kludge compensates for lack of undo bunching when
- before-change-functions is used."
+- 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
- (if allout-isearch-dynamic-expose
- (allout-isearch-rectification))
- ;; Undo bunching business:
- (if (and (listp buffer-undo-list) ; Undo history being kept.
- (equal this-command 'self-insert-command)
- (equal last-command 'self-insert-command))
- (let* ((prev-stuff (cdr buffer-undo-list))
- (before-prev-stuff (cdr (cdr prev-stuff)))
- cur-cell cur-from cur-to
- prev-cell prev-from prev-to)
- (if (and before-prev-stuff ; Goes back far enough to bother,
- (not (car prev-stuff)) ; and break before current,
- (not (car before-prev-stuff)) ; !and break before prev!
- (setq prev-cell (car (cdr prev-stuff))) ; contents now,
- (setq cur-cell (car buffer-undo-list)) ; contents prev.
-
- ;; cur contents denote a single char insertion:
- (numberp (setq cur-from (car cur-cell)))
- (numberp (setq cur-to (cdr cur-cell)))
- (= 1 (- cur-to cur-from))
-
- ;; prev contents denote fewer than aggregate-limit
- ;; insertions:
- (numberp (setq prev-from (car prev-cell)))
- (numberp (setq prev-to (cdr prev-cell)))
- ; Below threshold:
- (> allout-undo-aggregation (- prev-to prev-from)))
- (setq buffer-undo-list
- (cons (cons prev-from cur-to)
- (cdr (cdr (cdr buffer-undo-list))))))))
(if (and (boundp 'allout-after-save-decrypt)
allout-after-save-decrypt)
(allout-after-saves-handler))
- ;; Implement -post-goto-bullet, if set: (must be after undo business)
+ ;; Implement -post-goto-bullet, if set:
(if (and allout-post-goto-bullet
(allout-current-bullet-pos))
(progn (goto-char (allout-current-bullet-pos))
@@ -2456,10 +2560,6 @@
(if (not (allout-mode-p))
;; Shouldn't be invoked if not in allout-mode, but just in case:
nil
- ;; Register isearch status:
- (if (and (boundp 'isearch-mode) isearch-mode)
- (setq allout-pre-was-isearching t)
- (setq allout-pre-was-isearching nil))
;; Hot-spot navigation provisions:
(if (and (eq this-command 'self-insert-command)
(eq (point)(allout-current-bullet-pos)))
@@ -2499,110 +2599,6 @@
(not (allout-mode-p))
allout-layout)
(allout-mode t)))
-;;;_ > allout-isearch-rectification
-(defun allout-isearch-rectification ()
- "Rectify outline exposure before, during, or after isearch.
-
-Called as part of `allout-post-command-business'."
-
- (let ((isearching (and (boundp 'isearch-mode) isearch-mode)))
- (cond ((and isearching (not allout-pre-was-isearching))
- (allout-isearch-expose 'start))
- ((and isearching allout-pre-was-isearching)
- (allout-isearch-expose 'continue))
- ((and (not isearching) allout-pre-was-isearching)
- (allout-isearch-expose 'final))
- ;; Not and wasn't isearching:
- (t (setq allout-isearch-prior-pos nil)
- (setq allout-isearch-did-quit nil)))))
-;;;_ = allout-isearch-was-font-lock
-(defvar allout-isearch-was-font-lock
- (and (boundp 'font-lock-mode) font-lock-mode))
-;;;_ > allout-isearch-expose (mode)
-(defun allout-isearch-expose (mode)
- "MODE is either 'clear, 'start, 'continue, or 'final."
- ;; allout-isearch-prior-pos encodes exposure status of prior pos:
- ;; (pos was-vis header-pos end-pos)
- ;; pos - point of concern
- ;; was-vis - t, else 'topic if entire topic was exposed, 'entry otherwise
- ;; Do reclosure or prior pos, as necessary:
- (if (eq mode 'start)
- (setq allout-isearch-was-font-lock (and (boundp 'font-lock-mode)
- font-lock-mode)
- font-lock-mode nil)
- (if (eq mode 'final)
- (setq font-lock-mode allout-isearch-was-font-lock))
- (if (and allout-isearch-prior-pos
- (listp allout-isearch-prior-pos))
- ;; Conceal prior peek:
- (allout-flag-region (car (cdr allout-isearch-prior-pos))
- (car (cdr (cdr allout-isearch-prior-pos)))
- ?\r)))
- (if (allout-visible-p)
- (setq allout-isearch-prior-pos nil)
- (if (not (eq mode 'final))
- (setq allout-isearch-prior-pos (cons (point) (allout-show-entry)))
- (if allout-isearch-did-quit
- nil
- (setq allout-isearch-prior-pos nil)
- (allout-show-children))))
- (setq allout-isearch-did-quit nil))
-;;;_ > allout-enwrap-isearch ()
-(defun allout-enwrap-isearch ()
- "Impose `allout-mode' isearch-abort wrapper for dynamic exposure in isearch.
-
-The function checks to ensure that the rebinding is done only once."
-
- (add-hook 'isearch-mode-end-hook 'allout-isearch-rectification)
- (if (fboundp 'allout-real-isearch-abort)
- ;;
- nil
- ; Ensure load of isearch-mode:
- (if (or (and (fboundp 'isearch-mode)
- (fboundp 'isearch-abort))
- (condition-case error
- (load-library "isearch-mode")
- ('file-error (message
- "Skipping isearch-mode provisions - %s '%s'"
- (car (cdr error))
- (car (cdr (cdr error))))
- (sit-for 1)
- ;; Inhibit subsequent tries and return nil:
- (setq allout-isearch-dynamic-expose nil))))
- ;; Isearch-mode loaded, encapsulate specific entry points for
- ;; outline dynamic-exposure business:
- (progn
- ;; stash crucial isearch-mode funcs under known, private
- ;; names, then register wrapper functions under the old
- ;; names, in their stead:
- (fset 'allout-real-isearch-abort (symbol-function 'isearch-abort))
- (fset 'isearch-abort 'allout-isearch-abort)))))
-;;;_ > allout-isearch-abort ()
-(defun allout-isearch-abort ()
- "Wrapper for allout-real-isearch-abort \(which see), to register
-actual quits."
- (interactive)
- (setq allout-isearch-did-quit nil)
- (condition-case what
- (allout-real-isearch-abort)
- ('quit (setq allout-isearch-did-quit t)
- (signal 'quit nil))))
-
-;;; Prevent unnecessary font-lock while isearching!
-(defvar isearch-was-font-locking nil)
-(defun isearch-inhibit-font-lock ()
- "Inhibit `font-lock' while isearching - for use on `isearch-mode-hook'."
- (if (and (allout-mode-p) (boundp 'font-lock-mode) font-lock-mode)
- (setq isearch-was-font-locking t
- font-lock-mode nil)))
-(add-hook 'isearch-mode-hook 'isearch-inhibit-font-lock)
-(defun isearch-reenable-font-lock ()
- "Reenable font-lock after isearching - for use on `isearch-mode-end-hook'."
- (if (and (boundp 'font-lock-mode) font-lock-mode)
- (if (and (allout-mode-p) isearch-was-font-locking)
- (setq isearch-was-font-locking nil
- font-lock-mode t))))
-(add-hook 'isearch-mode-end-hook 'isearch-reenable-font-lock)
;;;_ - Topic Format Assessment
;;;_ > allout-solicit-alternate-bullet (depth &optional current-bullet)
@@ -2807,15 +2803,20 @@
((allout-sibling-index))))))
)
)
-;;;_ > allout-open-topic (relative-depth &optional before use_recent_bullet)
-(defun allout-open-topic (relative-depth &optional before use_recent_bullet)
+;;;_ > allout-open-topic (relative-depth &optional before
offer-recent-bullet)
+(defun allout-open-topic (relative-depth &optional before offer-recent-bullet)
"Open a new topic at depth DEPTH.
New topic is situated after current one, unless optional flag BEFORE
-is non-nil, or unless current line is complete empty (not even
-whitespace), in which case open is done on current line.
+is non-nil, or unless current line is completely empty - lacking even
+whitespace - in which case open is done on the current line.
-If USE_RECENT_BULLET is true, offer to use the bullet of the prior sibling.
+When adding an offspring, it will be added immediately after the parent if
+the other offspring are exposed, or after the last child if the offspring
+are hidden. \(The intervening offspring will be exposed in the latter
+case.)
+
+If OFFER-RECENT-BULLET is true, offer to use the bullet of the prior sibling.
Nuances:
@@ -2839,12 +2840,12 @@
having to go to its preceding sibling, and then open forward
from there."
+ (allout-beginning-of-current-line)
(let* ((depth (+ (allout-current-depth) relative-depth))
(opening-on-blank (if (looking-at "^\$")
(not (setq before nil))))
;; bunch o vars set while computing ref-topic
opening-numbered
- opening-encrypted
ref-depth
ref-bullet
(ref-topic (save-excursion
@@ -2864,13 +2865,6 @@
(allout-descend-to-depth depth))
(if (allout-numbered-type-prefix)
allout-numbered-bullet))))
- (setq opening-encrypted
- (save-excursion
- (and allout-topic-encryption-bullet
- (or (<= relative-depth 0)
- (allout-descend-to-depth depth))
- (if (allout-numbered-type-prefix)
- allout-numbered-bullet))))
(point)))
dbl-space
doing-beginning)
@@ -2891,122 +2885,98 @@
(save-excursion
;; succeeded by a blank line?
(allout-end-of-current-subtree)
- (bolp)))
+ (looking-at "\n\n")))
(and (= ref-depth 1)
(or before
(= depth 1)
(save-excursion
;; Don't already have following
;; vertical padding:
- (not (allout-pre-next-preface)))))))
+ (not (allout-pre-next-prefix)))))))
- ; Position to prior heading,
- ; if inserting backwards, and
- ; not going outwards:
+ ;; Position to prior heading, if inserting backwards, and not
+ ;; going outwards:
(if (and before (>= relative-depth 0))
(progn (allout-back-to-current-heading)
(setq doing-beginning (bobp))
(if (not (bobp))
(allout-previous-heading)))
(if (and before (bobp))
- (allout-unprotected (allout-open-line-not-read-only))))
+ (open-line 1)))
(if (<= relative-depth 0)
;; Not going inwards, don't snug up:
(if doing-beginning
- (allout-unprotected
- (if (not dbl-space)
- (allout-open-line-not-read-only)
- (allout-open-line-not-read-only)
- (allout-open-line-not-read-only)))
+ (if (not dbl-space)
+ (open-line 1)
+ (open-line 2))
(if before
(progn (end-of-line)
- (allout-pre-next-preface)
- (while (= ?\r (following-char))
+ (allout-pre-next-prefix)
+ (while (and (= ?\n (following-char))
+ (save-excursion
+ (forward-char 1)
+ (allout-hidden-p)))
(forward-char 1))
(if (not (looking-at "^$"))
- (allout-unprotected
- (allout-open-line-not-read-only))))
- (allout-end-of-current-subtree)))
- ;; Going inwards - double-space if first offspring is,
- ;; otherwise snug up.
- (end-of-line) ; So we skip any concealed progeny.
- (allout-pre-next-preface)
+ (open-line 1)))
+ (allout-end-of-current-subtree)
+ (if (looking-at "\n\n") (forward-char 1))))
+ ;; Going inwards - double-space if first offspring is
+ ;; double-spaced, otherwise snug up.
+ (allout-end-of-entry)
+ (line-move 1)
+ (allout-beginning-of-current-line)
+ (backward-char 1)
(if (bolp)
;; Blank lines between current header body and next
;; header - get to last substantive (non-white-space)
;; line in body:
- (re-search-backward "[^ \t\n]" nil t))
+ (progn (setq dbl-space t)
+ (re-search-backward "[^ \t\n]" nil t)))
+ (if (looking-at "\n\n")
+ (setq dbl-space t))
(if (save-excursion
(allout-next-heading)
- (if (> (allout-recent-depth) ref-depth)
- ;; This is an offspring.
- (progn (forward-line -1)
- (looking-at "^\\s-*$"))))
+ (when (> (allout-recent-depth) ref-depth)
+ ;; This is an offspring.
+ (forward-line -1)
+ (looking-at "^\\s-*$")))
(progn (forward-line 1)
- (allout-unprotected
- (allout-open-line-not-read-only))
+ (open-line 1)
(forward-line 1)))
- (end-of-line))
+ (allout-end-of-current-line))
+
;;(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.
(progn (if (and (not (> depth ref-depth))
(not before))
- (allout-unprotected
- (allout-open-line-not-read-only))
- (if (> depth ref-depth)
- (allout-unprotected
- (allout-open-line-not-read-only))
+ (open-line 1)
+ (if (and (not dbl-space) (> depth ref-depth))
+ (newline 1)
(if dbl-space
- (allout-unprotected
- (allout-open-line-not-read-only))
+ (open-line 1)
(if (not before)
- (allout-unprotected (newline 1))))))
- (if dbl-space
- (allout-unprotected (newline 1)))
+ (newline 1)))))
+ (if (and dbl-space (not (> relative-depth 0)))
+ (newline 1))
(if (and (not (eobp))
(not (bolp)))
(forward-char 1))))
))
- (insert (concat (allout-make-topic-prefix opening-numbered
- t
- depth)
- " "))
-
- ;;(if doing-beginning (save-excursion (newline (if dbl-space 2 1))))
+ (insert (concat (allout-make-topic-prefix opening-numbered t depth)
+ " "))
-
- (allout-rebullet-heading (and use_recent_bullet ;;; solicit
- ref-bullet)
- depth ;;; depth
- nil ;;; number-control
- nil ;;; index
- t)
+ (allout-rebullet-heading (and offer-recent-bullet ref-bullet)
+ depth nil nil t)
+ (if (> relative-depth 0)
+ (save-excursion (goto-char ref-topic)
+ (allout-show-children)))
(end-of-line)
)
)
-;;;_ . open-topic contingencies
-;;;_ ; base topic - one from which open was issued
-;;;_ , beginning char
-;;;_ , amount of space before will be used, unless opening in place
-;;;_ , end char will be used, unless opening before (and it still may)
-;;;_ ; absolute depth of new topic
-;;;_ ! insert in place - overrides most stuff
-;;;_ ; relative depth of new re base
-;;;_ ; before or after base topic
-;;;_ ; spacing around topic, if any, prior to new topic and at same depth
-;;;_ ; buffer boundaries - special provisions for beginning and end ob
-;;;_ ; level 1 topics have special provisions also - double space.
-;;;_ ; location of new topic
-;;;_ > allout-open-line-not-read-only ()
-(defun allout-open-line-not-read-only ()
- "Open line and remove inherited read-only text prop from new char, if any."
- (open-line 1)
- (if (plist-get (text-properties-at (point)) 'read-only)
- (allout-unprotected
- (remove-text-properties (point) (+ 1 (point)) '(read-only nil)))))
;;;_ > allout-open-subtopic (arg)
(defun allout-open-subtopic (arg)
"Open new topic header at deeper level than the current one.
@@ -3055,9 +3025,12 @@
;; length of topic prefix:
(make-string (progn (allout-end-of-prefix)
(current-column))
- ?\ ))))))
+ ?\ )))))
+ (use-auto-fill-function (or allout-outside-normal-auto-fill-function
+ auto-fill-function
+ 'do-auto-fill)))
(if (or allout-former-auto-filler allout-use-hanging-indents)
- (do-auto-fill))))
+ (funcall use-auto-fill-function))))
;;;_ > allout-reindent-body (old-depth new-depth &optional number)
(defun allout-reindent-body (old-depth new-depth &optional number)
"Reindent body lines which were indented at OLD-DEPTH to NEW-DEPTH.
@@ -3071,7 +3044,6 @@
(allout-end-of-prefix)
(let* ((new-margin (current-column))
excess old-indent-begin old-indent-end
- curr-ind
;; We want the column where the header-prefix text started
;; *before* the prefix was changed, so we infer it relative
;; to the new margin and the shift in depth:
@@ -3081,7 +3053,7 @@
(allout-unprotected
(save-match-data
(while
- (and (re-search-forward "[\n\r]\\(\\s-*\\)"
+ (and (re-search-forward "\n\\(\\s-*\\)"
nil
t)
;; Register the indent data, before we reset the
@@ -3231,8 +3203,7 @@
With repeat count, shift topic depth by that amount."
(interactive "P")
- (let ((start-col (current-column))
- (was-eol (eolp)))
+ (let ((start-col (current-column)))
(save-excursion
;; Normalize arg:
(cond ((null arg) (setq arg 0))
@@ -3414,8 +3385,8 @@
(if (and (> predecessor-depth 0)
(> (+ current-depth arg)
(1+ predecessor-depth)))
- (error (concat "May not shift deeper than offspring depth"
- " of previous topic")))))))
+ (error (concat "Disallowed shift deeper than"
+ " containing topic's children.")))))))
(allout-rebullet-topic arg))
;;;_ > allout-shift-out (arg)
(defun allout-shift-out (arg)
@@ -3436,84 +3407,72 @@
(interactive "*P")
- (let ((start-point (point))
- (leading-kill-ring-entry (car kill-ring))
- binding)
-
- (condition-case err
-
- (if (not (and (allout-mode-p) ; active outline mode,
- allout-numbered-bullet ; numbers may need adjustment,
- (bolp) ; may be clipping topic head,
- (looking-at allout-regexp))) ; are clipping topic head.
- ;; Above conditions do not obtain - just do a regular kill:
- (kill-line arg)
- ;; Ah, have to watch out for adjustments:
- (let* ((depth (allout-depth))
- (start-point (point))
- binding)
- ; Do the kill, presenting option
- ; for read-only text:
- (kill-line arg)
+ (if (or (not (allout-mode-p))
+ (not (bolp))
+ (not (looking-at allout-regexp)))
+ ;; Above conditions do not obtain - just do a regular kill:
+ (kill-line arg)
+ ;; Ah, have to watch out for adjustments:
+ (let* ((beg (point))
+ (beg-hidden (allout-hidden-p))
+ (end-hidden (save-excursion (allout-end-of-current-line)
+ (allout-hidden-p)))
+ (depth (allout-depth))
+ (collapsed (allout-current-topic-collapsed-p)))
+
+ (if collapsed
+ (put-text-property beg (1+ beg) 'allout-was-collapsed t)
+ (remove-text-properties beg (1+ beg) '(allout-was-collapsed t)))
+
+ (if (and (not beg-hidden) (not end-hidden))
+ (allout-unprotected (kill-line arg))
+ (kill-line arg))
; Provide some feedback:
- (sit-for 0)
- (save-excursion
- ; Start with the topic
- ; following killed line:
+ (sit-for 0)
+ (if allout-numbered-bullet
+ (save-excursion ; Renumber subsequent topics if needed:
(if (not (looking-at allout-regexp))
(allout-next-heading))
- (allout-renumber-to-depth depth))))
- ;; condition case handler:
- (text-read-only
- (goto-char start-point)
- (setq binding (where-is-internal 'allout-kill-topic nil t))
- (cond ((not binding) (setq binding ""))
- ((arrayp binding)
- (setq binding (mapconcat 'key-description (list binding) ", ")))
- (t (setq binding (format "%s" binding))))
- ;; ensure prior kill-ring leader is properly restored:
- (if (eq leading-kill-ring-entry (cadr kill-ring))
- ;; Aborted kill got pushed on front - ditch it:
- (let ((got (car kill-ring)))
- (setq kill-ring (cdr kill-ring))
- got)
- ;; Aborted kill got appended to prior - resurrect prior:
- (setcar kill-ring leading-kill-ring-entry))
- ;; make last-command skip this failed command, so kill-appending
- ;; conditions track:
- (setq this-command last-command)
- (error (concat "read-only text hit - use %s allout-kill-topic to"
- " discard collapsed stuff")
- binding)))
- )
- )
+ (allout-renumber-to-depth depth))))))
;;;_ > allout-kill-topic ()
(defun allout-kill-topic ()
"Kill topic together with subtopics.
-Leaves primary topic's trailing vertical whitespace, if any."
+Trailing whitespace is killed with a topic if that whitespace:
+
+ - would separate the topic from a subsequent sibling
+ - would separate the topic from the end of buffer
+ - would not be added to whitespace already separating the topic from the
+ previous one.
+
+Completely collapsed topics are marked as such, for re-collapse
+when yank with allout-yank into an outline as a heading."
;; Some finagling is done to make complex topic kills appear faster
;; than they actually are. A redisplay is performed immediately
- ;; after the region is disposed of, though the renumbering process
+ ;; after the region is deleted, though the renumbering process
;; has yet to be performed. This means that there may appear to be
- ;; a lag *after* the kill has been performed.
+ ;; a lag *after* a kill has been performed.
(interactive)
- (let* ((beg (prog1 (allout-back-to-current-heading)(beginning-of-line)))
+ (let* ((collapsed (allout-current-topic-collapsed-p))
+ (beg (prog1 (allout-back-to-current-heading) (beginning-of-line)))
(depth (allout-recent-depth)))
(allout-end-of-current-subtree)
+ (if (and (/= (current-column) 0) (not (eobp)))
+ (forward-char 1))
(if (not (eobp))
- (if (or (not (looking-at "^$"))
- ;; A blank line - cut it with this topic *unless* this
- ;; is the last topic at this level, in which case
- ;; we'll leave the blank line as part of the
- ;; containing topic:
- (save-excursion
- (and (allout-next-heading)
- (>= (allout-recent-depth) depth))))
+ (if (and (looking-at "\n")
+ (or (save-excursion
+ (or (not (allout-next-heading))
+ (= depth (allout-recent-depth))))
+ (and (> (- beg (point-min)) 3)
+ (string= (buffer-substring (- beg 2) beg) "\n\n"))))
(forward-char 1)))
+ (if collapsed
+ (put-text-property beg (1+ beg) 'allout-was-collapsed t)
+ (remove-text-properties beg (1+ beg) '(allout-was-collapsed t)))
(allout-unprotected (kill-region beg (point)))
(sit-for 0)
(save-excursion
@@ -3521,7 +3480,7 @@
;;;_ > allout-yank-processing ()
(defun allout-yank-processing (&optional arg)
- "Incidental outline-specific business to be done just after text yanks.
+ "Incidental allout-specific business to be done just after text yanks.
Does depth adjustment of yanked topics, when:
@@ -3542,10 +3501,12 @@
(interactive "*P")
; Get to beginning, leaving
; region around subject:
- (if (< (my-mark-marker t) (point))
+ (if (< (allout-mark-marker t) (point))
(exchange-point-and-mark))
(let* ((subj-beg (point))
- (subj-end (my-mark-marker t))
+ (into-bol (bolp))
+ (subj-end (allout-mark-marker t))
+ (was-collapsed (get-text-property subj-beg 'allout-was-collapsed))
;; 'resituate' if yanking an entire topic into topic header:
(resituate (and (allout-e-o-prefix-p)
(looking-at (concat "\\(" allout-regexp "\\)"))
@@ -3554,7 +3515,7 @@
;; `rectify-numbering' if resituating (where several topics may
;; be resituating) or yanking a topic into a topic slot (bol):
(rectify-numbering (or resituate
- (and (bolp) (looking-at allout-regexp)))))
+ (and into-bol (looking-at allout-regexp)))))
(if resituate
; The yanked stuff is a topic:
(let* ((prefix-len (- (match-end 1) subj-beg))
@@ -3575,7 +3536,6 @@
(allout-prefix-data (match-beginning 0)
(match-end 0)))
(allout-recent-depth))))
- done
(more t))
(setq rectify-numbering allout-numbered-bullet)
(if adjust-to-depth
@@ -3616,7 +3576,7 @@
(progn
(beginning-of-line)
(delete-region (point) subj-beg)
- (set-marker (my-mark-marker t) subj-end)
+ (set-marker (allout-mark-marker t) subj-end)
(goto-char subj-beg)
(allout-end-of-prefix))
; Delete base subj prefix,
@@ -3643,6 +3603,9 @@
nil ;;; index
t))
(message ""))))
+ (when (and (or into-bol resituate) was-collapsed)
+ (remove-text-properties subj-beg (1+ subj-beg) '(allout-was-collapsed))
+ (allout-hide-current-subtree))
(if (not resituate)
(exchange-point-and-mark))))
;;;_ > allout-yank (&optional arg)
@@ -3678,7 +3641,8 @@
(setq this-command 'yank)
(yank arg)
(if (allout-mode-p)
- (allout-yank-processing)))
+ (allout-yank-processing))
+)
;;;_ > allout-yank-pop (&optional arg)
(defun allout-yank-pop (&optional arg)
"Yank-pop like `allout-yank' when popping to bare outline prefixes.
@@ -3736,93 +3700,51 @@
;;;_ - Fundamental
;;;_ > allout-flag-region (from to flag)
(defun allout-flag-region (from to flag)
- "Hide or show lines from FROM to TO, via Emacs selective-display FLAG char.
-Ie, text following flag C-m \(carriage-return) is hidden until the
-next C-j (newline) char.
-
-Returns the endpoint of the region."
- ;; "OFR-" prefixes to avoid collisions with vars in code calling the macro.
- ;; ie, elisp macro vars are not 'hygenic', so distinct names are necessary.
- (let ((was-inhibit-r-o inhibit-read-only)
- (was-undo-list buffer-undo-list)
- (was-modified (buffer-modified-p))
- trans)
- (unwind-protect
- (save-excursion
- (setq inhibit-read-only t)
- (setq buffer-undo-list t)
- (if (> from to)
- (setq trans from from to to trans))
- (subst-char-in-region from to
- (if (= flag ?\n) ?\r ?\n)
- flag t)
- ;; adjust character read-protection on all the affected lines.
- ;; we handle the region line-by-line.
- (goto-char to)
- (end-of-line)
- (setq to (min (+ 2 (point)) (point-max)))
- (goto-char from)
- (beginning-of-line)
- (while (< (point) to)
- ;; handle from start of exposed to beginning of hidden, or eol:
- (remove-text-properties (point)
- (progn (if (re-search-forward "[\r\n]"
- nil t)
- (forward-char -1))
- (point))
- '(read-only nil))
- ;; handle from start of hidden, if any, to eol:
- (if (and (not (eobp)) (= (char-after (point)) ?\r))
- (put-text-property (point) (progn (end-of-line) (point))
- 'read-only t))
- ;; Handle the end-of-line to beginning of next line:
- (if (not (eobp))
- (progn (forward-char 1)
- (remove-text-properties (1- (point)) (point)
- '(read-only nil)))))
- )
- (if (not was-modified)
- (set-buffer-modified-p nil))
- (setq inhibit-read-only was-inhibit-r-o)
- (setq buffer-undo-list was-undo-list)
- )
- )
- )
+ "Conceal text from FROM to TO if FLAG is non-nil, else reveal it.
+
+Text is shown if flag is nil and hidden otherwise."
+ ;; We use outline invisibility spec.
+ (remove-overlays from to 'category 'allout-overlay-category)
+ (when flag
+ (let ((o (make-overlay from to)))
+ (overlay-put o 'category 'allout-overlay-category)
+ (when (featurep 'xemacs)
+ (let ((props (symbol-plist 'allout-overlay-category)))
+ (while props
+ (overlay-put o (pop props) (pop props)))))))
+ (run-hooks 'allout-view-change-hook))
;;;_ > allout-flag-current-subtree (flag)
(defun allout-flag-current-subtree (flag)
- "Hide or show subtree of currently-visible topic.
-
-See `allout-flag-region' for more details."
+ "Conceal currently-visible topic's subtree if FLAG non-nil, else reveal it."
(save-excursion
(allout-back-to-current-heading)
- (let ((from (point))
- (to (progn (allout-end-of-current-subtree) (1- (point)))))
- (allout-flag-region from to flag))))
+ (end-of-line)
+ (allout-flag-region (point)
+ ;; Exposing must not leave trailing blanks hidden,
+ ;; but can leave them exposed when hiding, so we
+ ;; can use flag's inverse as the
+ ;; include-trailing-blank cue:
+ (allout-end-of-current-subtree (not flag))
+ flag)))
;;;_ - Topic-specific
-;;;_ > allout-show-entry ()
-(defun allout-show-entry ()
+;;;_ > allout-show-entry (&optional inclusive)
+(defun allout-show-entry (&optional inclusive)
"Like `allout-show-current-entry', reveals entries nested in hidden topics.
This is a way to give restricted peek at a concealed locality without the
expense of exposing its context, but can leave the outline with aberrant
-exposure. `allout-hide-current-entry-completely' or `allout-show-offshoot'
-should be used after the peek to rectify the exposure."
+exposure. `allout-show-offshoot' should be used after the peek to rectify
+the exposure."
(interactive)
(save-excursion
- (let ((at (point))
- beg end)
+ (let (beg end)
(allout-goto-prefix)
- (setq beg (if (= (preceding-char) ?\r) (1- (point)) (point)))
- (re-search-forward "[\n\r]" nil t)
- (setq end (1- (if (< at (point))
- ;; We're on topic head line - show only it:
- (point)
- ;; or we're in body - include it:
- (max beg (or (allout-pre-next-preface) (point))))))
- (allout-flag-region beg end ?\n)
+ (setq beg (if (allout-hidden-p) (1- (point)) (point)))
+ (setq end (allout-pre-next-prefix))
+ (allout-flag-region beg end nil)
(list beg end))))
;;;_ > allout-show-children (&optional level strict)
(defun allout-show-children (&optional level strict)
@@ -3843,67 +3765,59 @@
point of non-opened subtree?)"
(interactive "p")
- (let (max-pos)
+ (let ((start-point (point)))
(if (and (not strict)
- (allout-hidden-p))
+ (allout-hidden-p))
- (progn (allout-show-to-offshoot) ; Point's concealed, open to
- ; expose it.
- ;; Then recurse, but with "strict" set so we don't
- ;; infinite regress:
- (setq max-pos (allout-show-children level t)))
+ (progn (allout-show-to-offshoot) ; Point's concealed, open to
+ ; expose it.
+ ;; Then recurse, but with "strict" set so we don't
+ ;; infinite regress:
+ (allout-show-children level t))
(save-excursion
- (save-restriction
- (let* ((start-pt (point))
- (chart (allout-chart-subtree (or level 1)))
- (to-reveal (allout-chart-to-reveal chart (or level 1))))
- (goto-char start-pt)
- (if (and strict (= (preceding-char) ?\r))
- ;; Concealed root would already have been taken care of,
- ;; unless strict was set.
- (progn
- (allout-flag-region (point) (allout-snug-back) ?\n)
- (if allout-show-bodies
- (progn (goto-char (car to-reveal))
- (allout-show-current-entry)))))
- (while to-reveal
- (goto-char (car to-reveal))
- (allout-flag-region (point) (allout-snug-back) ?\n)
- (if allout-show-bodies
- (progn (goto-char (car to-reveal))
- (allout-show-current-entry)))
- (setq to-reveal (cdr to-reveal)))))))))
-;;;_ > allout-hide-point-reconcile ()
-(defun allout-hide-reconcile ()
- "Like `allout-hide-current-entry'; hides completely if within hidden region.
-
-Specifically intended for aberrant exposure states, like entries that were
-exposed by `allout-show-entry' but are within otherwise concealed regions."
- (interactive)
- (save-excursion
- (allout-goto-prefix)
- (allout-flag-region (if (not (bobp)) (1- (point)) (point))
- (progn (allout-pre-next-preface)
- (if (= ?\r (following-char))
- (point)
- (1- (point))))
- ?\r)))
+ (allout-beginning-of-current-line)
+ (save-restriction
+ (let* ((chart (allout-chart-subtree (or level 1)))
+ (to-reveal (allout-chart-to-reveal chart (or level 1))))
+ (goto-char start-point)
+ (when (and strict (allout-hidden-p))
+ ;; Concealed root would already have been taken care of,
+ ;; unless strict was set.
+ (allout-flag-region (point) (allout-snug-back) nil)
+ (when allout-show-bodies
+ (goto-char (car to-reveal))
+ (allout-show-current-entry)))
+ (while to-reveal
+ (goto-char (car to-reveal))
+ (allout-flag-region (save-excursion (allout-snug-back) (point))
+ (progn (search-forward "\n" nil t)
+ (1- (point)))
+ nil)
+ (when allout-show-bodies
+ (goto-char (car to-reveal))
+ (allout-show-current-entry))
+ (setq to-reveal (cdr to-reveal)))))))
+ ;; Compensate for `save-excursion's maintenance of point
+ ;; within invisible text:
+ (goto-char start-point)))
;;;_ > allout-show-to-offshoot ()
(defun allout-show-to-offshoot ()
"Like `allout-show-entry', but reveals all concealed ancestors, as well.
-As with `allout-hide-current-entry-completely', useful for rectifying
-aberrant exposure states produced by `allout-show-entry'."
-
+Useful for coherently exposing to a random point in a hidden region."
(interactive)
(save-excursion
(let ((orig-pt (point))
(orig-pref (allout-goto-prefix))
(last-at (point))
bag-it)
- (while (or bag-it (= (preceding-char) ?\r))
- (beginning-of-line)
+ (while (or bag-it (allout-hidden-p))
+ (while (allout-hidden-p)
+ ;; XXX We would use `(move-beginning-of-line 1)', but it gets
+ ;; stuck on hidden newlines at column 80, as of GNU Emacs 22.0.50.
+ (beginning-of-line)
+ (if (allout-hidden-p) (forward-char -1)))
(if (= last-at (setq last-at (point)))
;; Oops, we're not making any progress! Show the current
;; topic completely, and bag this try.
@@ -3926,38 +3840,24 @@
(interactive)
(allout-back-to-current-heading)
(save-excursion
- (allout-flag-region (point)
+ (end-of-line)
+ (allout-flag-region (point)
(progn (allout-end-of-entry) (point))
- ?\r)))
+ t)))
;;;_ > allout-show-current-entry (&optional arg)
(defun allout-show-current-entry (&optional arg)
- "Show body following current heading, or hide the entry if repeat count."
+ "Show body following current heading, or hide entry with universal argument."
(interactive "P")
(if arg
(allout-hide-current-entry)
+ (save-excursion (allout-show-to-offshoot))
(save-excursion
(allout-flag-region (point)
- (progn (allout-end-of-entry) (point))
- ?\n)
+ (progn (allout-end-of-entry t) (point))
+ nil)
)))
-;;;_ > allout-hide-current-entry-completely ()
-; ... allout-hide-current-entry-completely also for isearch dynamic exposure:
-(defun allout-hide-current-entry-completely ()
- "Like `allout-hide-current-entry', but conceal topic completely.
-
-Specifically intended for aberrant exposure states, like entries that were
-exposed by `allout-show-entry' but are within otherwise concealed regions."
- (interactive)
- (save-excursion
- (allout-goto-prefix)
- (allout-flag-region (if (not (bobp)) (1- (point)) (point))
- (progn (allout-pre-next-preface)
- (if (= ?\r (following-char))
- (point)
- (1- (point))))
- ?\r)))
;;;_ > allout-show-current-subtree (&optional arg)
(defun allout-show-current-subtree (&optional arg)
"Show everything within the current topic. With a repeat-count,
@@ -3970,11 +3870,27 @@
(error "No topics")
;; got to first, outermost topic - set to expose it and siblings:
(message "Above outermost topic - exposing all.")
- (allout-flag-region (point-min)(point-max) ?\n))
+ (allout-flag-region (point-min)(point-max) nil))
+ (allout-beginning-of-current-line)
(if (not arg)
- (allout-flag-current-subtree ?\n)
+ (allout-flag-current-subtree nil)
(allout-beginning-of-level)
(allout-expose-topic '(* :))))))
+;;;_ > allout-current-topic-collapsed-p (&optional include-single-liners)
+(defun allout-current-topic-collapsed-p (&optional include-single-liners)
+ "True if the currently visible containing topic is already collapsed.
+
+If optional INCLUDE-SINGLE-LINERS is true, then include single-line
+topics \(which intrinsically can be considered both collapsed and
+not\), as collapsed. Otherwise they are considered uncollapsed."
+ (save-excursion
+ (and
+ (= (progn (allout-back-to-current-heading)
+ (move-end-of-line 1)
+ (point))
+ (allout-end-of-current-subtree))
+ (or include-single-liners
+ (progn (backward-char 1) (allout-hidden-p))))))
;;;_ > allout-hide-current-subtree (&optional just-close)
(defun allout-hide-current-subtree (&optional just-close)
"Close the current topic, or containing topic if this one is already closed.
@@ -3982,35 +3898,21 @@
If this topic is closed and it's a top level topic, close this topic
and its siblings.
-If optional arg JUST-CLOSE is non-nil, do not treat the parent or
+If optional arg JUST-CLOSE is non-nil, do not close the parent or
siblings, even if the target topic is already closed."
(interactive)
- (let ((from (point))
- (orig-eol (progn (end-of-line)
- (if (not (allout-goto-prefix))
- (error "No topics found")
- (end-of-line)(point)))))
- (allout-flag-current-subtree ?\r)
- (goto-char from)
- (if (and (= orig-eol (progn (goto-char orig-eol)
- (end-of-line)
- (point)))
- (not just-close)
- ;; Structure didn't change - try hiding current level:
- (goto-char from)
- (if (allout-up-current-level 1 t)
- t
- (goto-char 0)
- (let ((msg
- "Top-level topic already closed - closing siblings..."))
- (message msg)
- (allout-expose-topic '(0 :))
- (message (concat msg " Done.")))
- nil)
- (/= (allout-recent-depth) 0))
- (allout-hide-current-subtree))
- (goto-char from)))
+ (let* ((from (point))
+ (sibs-msg "Top-level topic already closed - closing siblings...")
+ (current-exposed (not (allout-current-topic-collapsed-p t))))
+ (cond (current-exposed (allout-flag-current-subtree t))
+ (just-close nil)
+ ((allout-up-current-level 1 t) (allout-hide-current-subtree))
+ (t (goto-char 0)
+ (message sibs-msg)
+ (allout-expose-topic '(0 :))
+ (message (concat sibs-msg " Done."))))
+ (goto-char from)))
;;;_ > allout-show-current-branches ()
(defun allout-show-current-branches ()
"Show all subheadings of this heading, but not their bodies."
@@ -4031,7 +3933,7 @@
"Show all of the text in the buffer."
(interactive)
(message "Exposing entire buffer...")
- (allout-flag-region (point-min) (point-max) ?\n)
+ (allout-flag-region (point-min) (point-max) nil)
(message "Exposing entire buffer... Done."))
;;;_ > allout-hide-bodies ()
(defun allout-hide-bodies ()
@@ -4046,11 +3948,11 @@
(narrow-to-region start end)
(goto-char (point-min))
(while (not (eobp))
- (allout-flag-region (point)
- (progn (allout-pre-next-preface) (point)) ?\r)
+ (end-of-line)
+ (allout-flag-region (point) (allout-end-of-entry) t)
(if (not (eobp))
(forward-char
- (if (looking-at "[\n\r][\n\r]")
+ (if (looking-at "\n\n")
2 1)))))))
;;;_ > allout-expose-topic (spec)
@@ -4117,9 +4019,7 @@
(let ((depth (allout-depth))
(max-pos 0)
prev-elem curr-elem
- stay done
- snug-back
- )
+ stay)
(while spec
(setq prev-elem curr-elem
curr-elem (car spec)
@@ -4147,7 +4047,7 @@
(setq spec (append (make-list residue prev-elem)
spec)))))))
((numberp curr-elem)
- (if (and (>= 0 curr-elem) (allout-visible-p))
+ (if (and (>= 0 curr-elem) (not (allout-hidden-p)))
(save-excursion (allout-hide-current-subtree t)
(if (> 0 curr-elem)
nil
@@ -4207,7 +4107,6 @@
(interactive "xExposure spec: ")
(let ((depth (allout-current-depth))
- done
max-pos)
(cond ((null spec) nil)
((symbolp spec)
@@ -4387,7 +4286,7 @@
(save-excursion
(let*
;; state vars:
- (strings prefix pad result depth new-depth out gone-out bullet beg
+ (strings prefix result depth new-depth out gone-out bullet beg
next done)
(goto-char start)
@@ -4419,16 +4318,11 @@
beg
;To hidden text or end of line:
(progn
- (search-forward "\r"
- (save-excursion (end-of-line)
- (point))
- 1)
- (if (= (preceding-char) ?\r)
- (1- (point))
- (point))))
+ (end-of-line)
+ (allout-back-to-visible-text)))
strings))
- (if (< (point) next) ; Resume from after hid text, if any.
- (forward-line 1))
+ (when (< (point) next) ; Resume from after hid text, if any.
+ (line-move 1))
(setq beg (point)))
;; Accumulate list for this topic:
(setq strings (nreverse strings))
@@ -4488,7 +4382,7 @@
;;;_ > allout-process-exposed (&optional func from to frombuf
;;; tobuf format)
(defun allout-process-exposed (&optional func from to frombuf tobuf
- format &optional start-num)
+ format start-num)
"Map function on exposed parts of current topic; results to another buffer.
All args are options; default values itemized below.
@@ -4694,13 +4588,6 @@
(page-numbering (if allout-number-pages
"\\pagestyle{empty}\n"
""))
- (linesdef (concat "\\def\\beginlines{"
- "\\par\\begingroup\\nobreak\\medskip"
- "\\parindent=0pt\n"
- " \\kern1pt\\nobreak \\obeylines \\obeyspaces "
- "\\everypar{\\strut}}\n"
- "\\def\\endlines{"
- "\\kern1pt\\endgroup\\medbreak\\noindent}\n"))
(titlecmd (format "\\newcommand{\\titlecmd}[1]{{%s #1}}\n"
allout-title-style))
(labelcmd (format "\\newcommand{\\labelcmd}[1]{{%s #1}}\n"
@@ -4733,7 +4620,7 @@
(title (format "%s%s%s%s"
"\\titlecmd{"
(allout-latex-verb-quote (if allout-title
- (condition-case err
+ (condition-case nil
(eval allout-title)
('error "<unnamed buffer>"))
"Unnamed Outline"))
@@ -4913,7 +4800,7 @@
(interactive "P")
(save-excursion
(allout-back-to-current-heading)
- (allout-toggle-subtree-encryption)
+ (allout-toggle-subtree-encryption fetch-pass)
)
)
;;;_ > allout-toggle-subtree-encryption (&optional fetch-pass)
@@ -4948,20 +4835,23 @@
(progn (if (= (point-max) after-bullet-pos)
(error "no body to encrypt"))
(allout-encrypted-topic-p)))
- (was-collapsed (if (not (re-search-forward "[\n\r]" nil t))
+ (was-collapsed (if (not (search-forward "\n" nil t))
nil
(backward-char 1)
- (looking-at "\r")))
+ (allout-hidden-p)))
(subtree-beg (1+ (point)))
(subtree-end (allout-end-of-subtree))
(subject-text (buffer-substring-no-properties subtree-beg
subtree-end))
(subtree-end-char (char-after (1- subtree-end)))
- (subtree-trailling-char (char-after subtree-end))
- (place-holder (if (or (string= "" subject-text)
- (string= "\n" subject-text))
- (error "No topic contents to %scrypt"
- (if was-encrypted "de" "en"))))
+ (subtree-trailing-char (char-after subtree-end))
+ ;; kluge - result-text needs to be nil, but we also want to
+ ;; check for the error condition
+ (result-text (if (or (string= "" subject-text)
+ (string= "\n" subject-text))
+ (error "No topic contents to %scrypt"
+ (if was-encrypted "de" "en"))
+ nil))
;; Assess key parameters:
(key-info (or
;; detect the type by which it is already encrypted
@@ -4972,8 +4862,7 @@
'(symmetric nil)))
(for-key-type (car key-info))
(for-key-identity (cadr key-info))
- (fetch-pass (and fetch-pass (member fetch-pass '(16 (16)))))
- result-text)
+ (fetch-pass (and fetch-pass (member fetch-pass '(16 (16))))))
(setq result-text
(allout-encrypt-string subject-text was-encrypted
@@ -4987,12 +4876,12 @@
(delete-region subtree-beg subtree-end)
(insert result-text)
(if was-collapsed
- (allout-flag-region subtree-beg (1- (point)) ?\r))
- ;; adjust trailling-blank-lines to preserve topic spacing:
+ (allout-flag-region (1- subtree-beg) (point) t))
+ ;; adjust trailing-blank-lines to preserve topic spacing:
(if (not was-encrypted)
- (if (and (member subtree-end-char '(?\r ?\n))
- (member subtree-trailling-char '(?\r ?\n)))
- (insert subtree-trailling-char)))
+ (if (and (= subtree-end-char ?\n)
+ (= subtree-trailing-char ?\n))
+ (insert subtree-trailing-char)))
;; Ensure that the item has an encrypted-entry bullet:
(if (not (string= (buffer-substring-no-properties
(1- after-bullet-pos) after-bullet-pos)
@@ -5060,8 +4949,7 @@
target-prompt-id
(or (buffer-file-name allout-buffer)
target-prompt-id))))
- (comment "Processed by allout driving pgg")
- work-buffer result result-text status)
+ result-text status)
(if (and fetch-pass (not passphrase))
;; Force later fetch by evicting passphrase from the cache.
@@ -5083,7 +4971,7 @@
retried fetch-pass)))
(with-temp-buffer
- (insert (subst-char-in-string ?\r ?\n text))
+ (insert text)
(cond
@@ -5319,7 +5207,7 @@
(require 'pgg-parse)
(save-excursion
(with-temp-buffer
- (insert (subst-char-in-string ?\r ?\n text))
+ (insert text)
(let* ((parsed-armor (pgg-parse-armor-region (point-min) (point-max)))
(type (if (pgg-gpg-symmetric-key-p parsed-armor)
'symmetric
@@ -5442,21 +5330,21 @@
(while (not done)
(if (not (re-search-forward
- (format "\\(\\`\\|[\n\r]\\)%s *%s[^*]"
+ (format "\\(\\`\\|\n\\)%s *%s[^*]"
(regexp-quote allout-header-prefix)
(regexp-quote allout-topic-encryption-bullet))
nil t))
(setq got nil
done t)
(goto-char (setq got (match-beginning 0)))
- (if (looking-at "[\n\r]")
+ (if (looking-at "\n")
(forward-char 1))
(setq got (point)))
(cond ((not got)
(setq done t))
- ((not (re-search-forward "[\n\r]"))
+ ((not (search-forward "\n"))
(setq got nil
done t))
@@ -5498,26 +5386,28 @@
(interactive "p")
(save-excursion
- (let ((current-mark (point-marker))
- was-modified
- bo-subtree
- editing-topic editing-point)
+ (let* ((current-mark (point-marker))
+ (current-mark-position (marker-position current-mark))
+ was-modified
+ bo-subtree
+ editing-topic editing-point)
(goto-char (point-min))
(while (allout-next-topic-pending-encryption except-mark)
(setq was-modified (buffer-modified-p))
- (if (save-excursion
- (and (boundp 'allout-encrypt-unencrypted-on-saves)
- allout-encrypt-unencrypted-on-saves
- (setq bo-subtree (re-search-forward "[\n\r]"))
- ;; Not collapsed:
- (string= (match-string 0) "\n")
- (>= current-mark (point))
- (allout-end-of-current-subtree)
- (<= current-mark (point))))
+ (when (save-excursion
+ (and (boundp 'allout-encrypt-unencrypted-on-saves)
+ allout-encrypt-unencrypted-on-saves
+ (setq bo-subtree (re-search-forward "$"))
+ (not (allout-hidden-p))
+ (>= current-mark (point))
+ (allout-end-of-current-subtree)
+ (<= current-mark (point))))
(setq editing-topic (point)
;; we had to wait for this 'til now so prior topics are
;; encrypted, any relevant text shifts are in place:
- editing-point (marker-position current-mark)))
+ editing-point (- current-mark-position
+ (count-trailing-whitespace-region
+ bo-subtree current-mark-position))))
(allout-toggle-subtree-encryption)
(if (not was-modified)
(set-buffer-modified-p nil))
@@ -5579,11 +5469,11 @@
(setq beg (- (point) 16))
(setq suffix (buffer-substring-no-properties
(point)
- (progn (if (re-search-forward "[\n\r]" nil t)
+ (progn (if (search-forward "\n" nil t)
(forward-char -1))
(point))))
(setq prefix (buffer-substring-no-properties
- (progn (if (re-search-backward "[\n\r]" nil t)
+ (progn (if (search-backward "\n" nil t)
(forward-char 1))
(point))
beg))
@@ -5639,7 +5529,7 @@
(allout-show-to-offshoot)
(if (search-forward (concat "\n" prefix varname ":") nil t)
(let* ((value-beg (point))
- (line-end (progn (if (re-search-forward "[\n\r]" nil t)
+ (line-end (progn (if (search-forward "\n" nil t)
(forward-char -1))
(point)))
(value-end (- line-end (length suffix))))
@@ -5710,26 +5600,29 @@
(regexp-sans-escapes (substring regexp 1)))
;; Exclude first char, but maintain count:
(regexp-sans-escapes (substring regexp 1) successive-backslashes))))
-;;;_ - add-hook definition for divergent emacsen
-;;;_ > add-hook (hook function &optional append)
-(if (not (fboundp 'add-hook))
- (defun add-hook (hook function &optional append)
- "Add to the value of HOOK the function FUNCTION unless already present.
-\(It becomes the first hook on the list unless optional APPEND is non-nil, in
-which case it becomes the last). HOOK should be a symbol, and FUNCTION may be
-any valid function. HOOK's value should be a list of functions, not a single
-function. If HOOK is void, it is first set to nil."
- (or (boundp hook) (set hook nil))
- (or (if (consp function)
- ;; Clever way to tell whether a given lambda-expression
- ;; is equal to anything in the hook.
- (let ((tail (assoc (cdr function) (symbol-value hook))))
- (equal function tail))
- (memq function (symbol-value hook)))
- (set hook
- (if append
- (nconc (symbol-value hook) (list function))
- (cons function (symbol-value hook)))))))
+;;;_ > count-trailing-whitespace-region (beg end)
+(defun count-trailing-whitespace-region (beg end)
+ "Return number of trailing whitespace chars between BEG and END.
+
+If BEG is bigger than END we return 0."
+ (if (> beg end)
+ 0
+ (save-excursion
+ (goto-char beg)
+ (let ((count 0))
+ (while (re-search-forward "[ ][ ]*$" end t)
+ (goto-char (1+ (match-beginning 0)))
+ (setq count (1+ count)))
+ count))))
+;;;_ > allout-mark-marker to accommodate divergent emacsen:
+(defun allout-mark-marker (&optional force buffer)
+ "Accommodate the different signature for `mark-marker' across Emacsen.
+
+XEmacs takes two optional args, while mainline GNU Emacs does not,
+so pass them along when appropriate."
+ (if (featurep 'xemacs)
+ (apply 'mark-marker force buffer)
+ (mark-marker)))
;;;_ > subst-char-in-string if necessary
(if (not (fboundp 'subst-char-in-string))
(defun subst-char-in-string (fromchar tochar string &optional inplace)
@@ -5742,17 +5635,159 @@
(if (eq (aref newstr i) fromchar)
(aset newstr i tochar)))
newstr)))
-;;;_ : my-mark-marker to accommodate divergent emacsen:
-(defun my-mark-marker (&optional force buffer)
- "Accommodate the different signature for `mark-marker' across Emacsen.
+;;;_ > wholenump if necessary
+(if (not (fboundp 'wholenump))
+ (defalias 'wholenump 'natnump))
+;;;_ > remove-overlays if necessary
+(if (not (fboundp 'remove-overlays))
+ (defun remove-overlays (&optional beg end name val)
+ "Clear BEG and END of overlays whose property NAME has value VAL.
+Overlays might be moved and/or split.
+BEG and END default respectively to the beginning and end of buffer."
+ (unless beg (setq beg (point-min)))
+ (unless end (setq end (point-max)))
+ (if (< end beg)
+ (setq beg (prog1 end (setq end beg))))
+ (save-excursion
+ (dolist (o (overlays-in beg end))
+ (when (eq (overlay-get o name) val)
+ ;; Either push this overlay outside beg...end
+ ;; or split it to exclude beg...end
+ ;; or delete it entirely (if it is contained in beg...end).
+ (if (< (overlay-start o) beg)
+ (if (> (overlay-end o) end)
+ (progn
+ (move-overlay (copy-overlay o)
+ (overlay-start o) beg)
+ (move-overlay o end (overlay-end o)))
+ (move-overlay o (overlay-start o) beg))
+ (if (> (overlay-end o) end)
+ (move-overlay o end (overlay-end o))
+ (delete-overlay o)))))))
+ )
+;;;_ > copy-overlay if necessary - xemacs ~ 21.4
+(if (not (fboundp 'copy-overlay))
+ (defun copy-overlay (o)
+ "Return a copy of overlay O."
+ (let ((o1 (make-overlay (overlay-start o) (overlay-end o)
+ ;; FIXME: there's no easy way to find the
+ ;; insertion-type of the two markers.
+ (overlay-buffer o)))
+ (props (overlay-properties o)))
+ (while props
+ (overlay-put o1 (pop props) (pop props)))
+ o1)))
+;;;_ > add-to-invisibility-spec if necessary - xemacs ~ 21.4
+(if (not (fboundp 'add-to-invisibility-spec))
+ (defun add-to-invisibility-spec (element)
+ "Add ELEMENT to `buffer-invisibility-spec'.
+See documentation for `buffer-invisibility-spec' for the kind of elements
+that can be added."
+ (if (eq buffer-invisibility-spec t)
+ (setq buffer-invisibility-spec (list t)))
+ (setq buffer-invisibility-spec
+ (cons element buffer-invisibility-spec))))
+;;;_ > remove-from-invisibility-spec if necessary - xemacs ~ 21.4
+(if (not (fboundp 'remove-from-invisibility-spec))
+ (defun remove-from-invisibility-spec (element)
+ "Remove ELEMENT from `buffer-invisibility-spec'."
+ (if (consp buffer-invisibility-spec)
+ (setq buffer-invisibility-spec (delete element
+ buffer-invisibility-spec)))))
+;;;_ > move-beginning-of-line if necessary - older emacs, xemacs
+(if (not (fboundp 'move-beginning-of-line))
+ (defun move-beginning-of-line (arg)
+ "Move point to beginning of current line as displayed.
+\(This disregards invisible newlines such as those
+which are part of the text that an image rests on.)
+
+With argument ARG not nil or 1, move forward ARG - 1 lines first.
+If point reaches the beginning or end of buffer, it stops there.
+To ignore intangibility, bind `inhibit-point-motion-hooks' to t.
+
+This function does not move point across a field boundary unless that
+would move point to a different line than the original, unconstrained
+result. If N is nil or 1, and a front-sticky field starts at point,
+the point does not move. To ignore field boundaries bind
+`inhibit-field-text-motion' to t."
+ (interactive "p")
+ (or arg (setq arg 1))
+ (if (/= arg 1)
+ (condition-case nil (line-move (1- arg)) (error nil)))
+
+ (let ((orig (point)))
+ ;; Move to beginning-of-line, ignoring fields and invisibles.
+ (skip-chars-backward "^\n")
+ (while (and (not (bobp)) (line-move-invisible-p (1- (point))))
+ (goto-char (if (featurep 'xemacs)
+ (previous-property-change (point))
+ (previous-char-property-change (point))))
+ (skip-chars-backward "^\n"))
+ (vertical-motion 0)
+ (if (/= orig (point))
+ (goto-char (constrain-to-field (point) orig (/= arg 1) t nil)))))
+)
+;;;_ > move-end-of-line if necessary - older emacs, xemacs
+(if (not (fboundp 'move-end-of-line))
+ (defun move-end-of-line (arg)
+ "Move point to end of current line as displayed.
+\(This disregards invisible newlines such as those
+which are part of the text that an image rests on.)
+
+With argument ARG not nil or 1, move forward ARG - 1 lines first.
+If point reaches the beginning or end of buffer, it stops there.
+To ignore intangibility, bind `inhibit-point-motion-hooks' to t.
+
+This function does not move point across a field boundary unless that
+would move point to a different line than the original, unconstrained
+result. If N is nil or 1, and a rear-sticky field ends at point,
+the point does not move. To ignore field boundaries bind
+`inhibit-field-text-motion' to t."
+ (interactive "p")
+ (or arg (setq arg 1))
+ (let ((orig (point))
+ done)
+ (while (not done)
+ (let ((newpos
+ (save-excursion
+ (let ((goal-column 0))
+ (and (condition-case nil
+ (or (line-move arg) t)
+ (error nil))
+ (not (bobp))
+ (progn
+ (while (and (not (bobp)) (line-move-invisible-p
(1- (point))))
+ (goto-char (previous-char-property-change
(point))))
+ (backward-char 1)))
+ (point)))))
+ (goto-char newpos)
+ (if (and (> (point) newpos)
+ (eq (preceding-char) ?\n))
+ (backward-char 1)
+ (if (and (> (point) newpos) (not (eobp))
+ (not (eq (following-char) ?\n)))
+ ;; If we skipped something intangible
+ ;; and now we're not really at eol,
+ ;; keep going.
+ (setq arg 1)
+ (setq done t)))))
+ (if (/= orig (point))
+ (goto-char (constrain-to-field (point) orig (/= arg 1) t
+ nil)))))
+ )
+;;;_ > line-move-invisible-p if necessary
+(if (not (fboundp 'line-move-invisible-p))
+ (defun line-move-invisible-p (pos)
+ "Return non-nil if the character after POS is currently invisible."
+ (let ((prop
+ (get-char-property pos 'invisible)))
+ (if (eq buffer-invisibility-spec t)
+ prop
+ (or (memq prop buffer-invisibility-spec)
+ (assq prop buffer-invisibility-spec))))))
-XEmacs takes two optional args, while mainline GNU Emacs does not,
-so pass them along when appropriate."
- (if (featurep 'xemacs)
- (apply 'mark-marker force buffer)
- (mark-marker)))
-;;;_ #10 Under development
+;;;_ #10 Unfinished
;;;_ > allout-bullet-isearch (&optional bullet)
(defun allout-bullet-isearch (&optional bullet)
"Isearch \(regexp) for topic with bullet BULLET."
@@ -5769,8 +5804,9 @@
bullet)))
(isearch-repeat 'forward)
(isearch-mode t)))
-;;;_ ? Re hooking up with isearch - use isearch-op-fun rather than
-;;; wrapping the isearch functions.
+
+;;;_ #11 Provide
+(provide 'allout)
;;;_* Local emacs vars.
;;; The following `allout-layout' local variable setting: