(require 'overlay)
(eval-when-compile
(progn
(require 'pgg)
(require 'pgg-gpg)
(require 'overlay)
(require 'cl)
))
(defgroup allout nil
"Extensive outline mode for use alone and with other modes."
:prefix "allout-"
:group 'outlines)
(defcustom allout-auto-activation nil
"*Regulates auto-activation modality of allout outlines - see `allout-init'.
Setq-default by `allout-init' to regulate whether or not allout
outline mode is automatically activated when the buffer-specific
variable `allout-layout' is non-nil, and whether or not the layout
dictated by `allout-layout' should be imposed on mode activation.
With value t, auto-mode-activation and auto-layout are enabled.
\(This also depends on `allout-find-file-hook' being installed in
`find-file-hook', which is also done by `allout-init'.)
With value `ask', auto-mode-activation is enabled, and endorsement for
performing auto-layout is asked of the user each time.
With value `activate', only auto-mode-activation is enabled,
auto-layout is not.
With value nil, neither auto-mode-activation nor auto-layout are
enabled.
See the docstring for `allout-init' for the proper interface to
this variable."
:type '(choice (const :tag "On" t)
(const :tag "Ask about layout" "ask")
(const :tag "Mode only" "activate")
(const :tag "Off" nil))
:group 'allout)
(defcustom allout-default-layout '(-2 : 0)
"*Default allout outline layout specification.
This setting specifies the outline exposure to use when
`allout-layout' has the local value `t'. This docstring describes the
layout specifications.
A list value specifies a default layout for the current buffer,
to be applied upon activation of `allout-mode'. Any non-nil
value will automatically trigger `allout-mode', provided
`allout-init' has been called to enable this behavior.
The types of elements in the layout specification are:
integer - dictate the relative depth to open the corresponding topic(s),
where:
- negative numbers force the topic to be closed before opening
to the absolute value of the number, so all siblings are open
only to that level.
- positive numbers open to the relative depth indicated by the
number, but do not force already opened subtopics to be closed.
- 0 means to close topic - hide all subitems.
: - repeat spec - apply the preceeding element to all siblings at
current level, *up to* those siblings that would be covered by specs
following the `:' on the list. Ie, apply to all topics at level but
trailing ones accounted for by trailing specs. (Only the first of
multiple colons at the same level is honored - later ones are ignored.)
* - completely exposes the topic, including bodies
+ - exposes all subtopics, but not the bodies
- - exposes the body of the corresponding topic, but not subtopics
list - a nested layout spec, to be applied intricately to its
corresponding item(s)
Examples:
'(-2 : 0)
Collapse the top-level topics to show their children and
grandchildren, but completely collapse the final top-level topic.
'(-1 () : 1 0)
Close the first topic so only the immediate subtopics are shown,
leave the subsequent topics exposed as they are until the second
second to last topic, which is exposed at least one level, and
completely close the last topic.
'(-2 : -1 *)
Expose children and grandchildren of all topics at current
level except the last two; expose children of the second to
last and completely expose the last one, including its subtopics.
See `allout-expose-topic' for more about the exposure process.
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
is modulo the setting of `allout-use-mode-specific-leader', which see."
:type 'allout-layout-type
:group 'allout)
(define-widget 'allout-layout-type 'lazy
"Allout layout format customization basic building blocks."
:type '(repeat
(choice (integer :tag "integer (<= zero is strict)")
(const :tag ": (repeat prior)" :)
(const :tag "* (completely expose)" *)
(const :tag "+ (expose all offspring, headlines only)" +)
(const :tag "- (expose topic body but not offspring)" -)
(allout-layout-type :tag "<Nested layout>"))))
(defcustom allout-show-bodies nil
"*If non-nil, show entire body when exposing a topic, rather than
just the header."
:type 'boolean
:group 'allout)
(make-variable-buffer-local 'allout-show-bodies)
(put 'allout-show-bodies 'safe-local-variable
(if (fboundp 'booleanp) 'booleanp '(lambda (x) (member x '(t nil)))))
(defcustom allout-beginning-of-line-cycles t
"*If non-nil, \\[allout-beginning-of-line] will cycle through smart-placement options.
Cycling only happens on when the command is repeated, not when it
follows a different command.
Smart-placement means that repeated calls to this function will
advance as follows:
- if the cursor is on a non-headline body line and not on the first column:
then it goes to the first column
- if the cursor is on the first column of a non-headline body line:
then it goes to the start of the headline within the item body
- if the cursor is on the headline and not the start of the headline:
then it goes to the start of the headline
- if the cursor is on the start of the headline:
then it goes to the bullet character (for hotspot navigation)
- if the cursor is on the bullet character:
then it goes to the first column of that line (the headline)
- if the cursor is on the first column of the headline:
then it goes to the start of the headline within the item body.
In this fashion, you can use the beginning-of-line command to do
its normal job and then, when repeated, advance through the
entry, cycling back to start.
If this configuration variable is nil, then the cursor is just
advanced to the beginning of the line and remains there on
repeated calls."
:type 'boolean :group 'allout)
(defcustom allout-end-of-line-cycles t
"*If non-nil, \\[allout-end-of-line] will cycle through smart-placement options.
Cycling only happens on when the command is repeated, not when it
follows a different command.
Smart-placement means that repeated calls to this function will
advance as follows:
- if the cursor is not on the end-of-line,
then it goes to the end-of-line
- if the cursor is on the end-of-line but not the end-of-entry,
then it goes to the end-of-entry, exposing it if necessary
- if the cursor is on the end-of-entry,
then it goes to the end of the head line
In this fashion, you can use the end-of-line command to do its
normal job and then, when repeated, advance through the entry,
cycling back to start.
If this configuration variable is nil, then the cursor is just
advanced to the end of the line and remains there on repeated
calls."
:type 'boolean :group 'allout)
(defcustom allout-header-prefix "."
"*Leading string which helps distinguish topic headers.
Outline topic header lines are identified by a leading topic
header prefix, which mostly have the value of this var at their front.
Level 1 topics are exceptions. They consist of only a single
character, which is typically set to the `allout-primary-bullet'."
:type 'string
:group 'allout)
(make-variable-buffer-local 'allout-header-prefix)
(put 'allout-header-prefix 'safe-local-variable 'stringp)
(defcustom allout-primary-bullet "*"
"Bullet used for top-level outline topics.
Outline topic header lines are identified by a leading topic header
prefix, which is concluded by bullets that includes the value of this
var and the respective allout-*-bullets-string vars.
The value of an asterisk (`*') provides for backwards compatibility
with the original Emacs outline mode. See `allout-plain-bullets-string'
and `allout-distinctive-bullets-string' for the range of available
bullets."
:type 'string
:group 'allout)
(make-variable-buffer-local 'allout-primary-bullet)
(put 'allout-primary-bullet 'safe-local-variable 'stringp)
(defcustom allout-plain-bullets-string ".,"
"*The bullets normally used in outline topic prefixes.
See `allout-distinctive-bullets-string' for the other kind of
bullets.
DO NOT include the close-square-bracket, `]', as a bullet.
Outline mode has to be reactivated in order for changes to the value
of this var to take effect."
:type 'string
:group 'allout)
(make-variable-buffer-local 'allout-plain-bullets-string)
(put 'allout-plain-bullets-string 'safe-local-variable 'stringp)
(defcustom allout-distinctive-bullets-string "*+-=>()[{}&!?#%\"X@$~_\\:;^"
"*Persistent outline header bullets used to distinguish special topics.
These bullets are distinguish topics with particular character.
They are not used by default in the topic creation routines, but
are offered as options when you modify topic creation with a
universal argument \(\\[universal-argument]), or during rebulleting \(\\[allout-rebullet-current-heading]).
Distinctive bullets are not cycled when topics are shifted or
otherwise automatically rebulleted, so their marking is
persistent until deliberately changed. Their significance is
purely by convention, however. Some conventions suggest
themselves:
`(' - open paren - an aside or incidental point
`?' - question mark - uncertain or outright question
`!' - exclamation point/bang - emphatic
`[' - open square bracket - meta-note, about item instead of item's subject
`\"' - double quote - a quotation or other citation
`=' - equal sign - an assignement, equating a name with some connotation
`^' - carat - relates to something above
Some are more elusive, but their rationale may be recognizable:
`+' - plus - pending consideration, completion
`_' - underscore - done, completed
`&' - ampersand - addendum, furthermore
\(Some other non-plain bullets have special meaning to the
software. By default:
`~' marks encryptable topics - see `allout-topic-encryption-bullet'
`#' marks auto-numbered bullets - see `allout-numbered-bullet'.)
See `allout-plain-bullets-string' for the standard, alternating
bullets.
You must run `set-allout-regexp' in order for outline mode to
adopt changes of this value.
DO NOT include the close-square-bracket, `]', on either of the bullet
strings."
:type 'string
:group 'allout)
(make-variable-buffer-local 'allout-distinctive-bullets-string)
(put 'allout-distinctive-bullets-string 'safe-local-variable 'stringp)
(defcustom allout-use-mode-specific-leader t
"*When non-nil, use mode-specific topic-header prefixes.
Allout outline mode will use the mode-specific `allout-mode-leaders' or
comment-start string, if any, to lead the topic prefix string, so topic
headers look like comments in the programming language. It will also use
the comment-start string, with an '_' appended, for `allout-primary-bullet'.
String values are used as literals, not regular expressions, so
do not escape any regulare-expression characters.
Value t means to first check for assoc value in `allout-mode-leaders'
alist, then use comment-start string, if any, then use default (`.').
\(See note about use of comment-start strings, below.)
Set to the symbol for either of `allout-mode-leaders' or
`comment-start' to use only one of them, respectively.
Value nil means to always use the default (`.') and leave
`allout-primary-bullet' unaltered.
comment-start strings that do not end in spaces are tripled in
the header-prefix, and an `_' underscore is tacked on the end, to
distinguish them from regular comment strings. comment-start
strings that do end in spaces are not tripled, but an underscore
is substituted for the space. [This presumes that the space is
for appearance, not comment syntax. You can use
`allout-mode-leaders' to override this behavior, when
undesired.]"
:type '(choice (const t) (const nil) string
(const allout-mode-leaders)
(const comment-start))
:group 'allout)
(put 'allout-use-mode-specific-leader 'safe-local-variable
'(lambda (x) (or (memq x '(t nil allout-mode-leaders comment-start))
(stringp x))))
(defvar allout-mode-leaders '()
"Specific allout-prefix leading strings per major modes.
Use this if the mode's comment-start string isn't what you
prefer, or if the mode lacks a comment-start string. See
`allout-use-mode-specific-leader' for more details.
If you're constructing a string that will comment-out outline
structuring so it can be included in program code, append an extra
character, like an \"_\" underscore, to distinguish the lead string
from regular comments that start at the beginning-of-line.")
(defcustom allout-old-style-prefixes nil
"*When non-nil, use only old-and-crusty `outline-mode' `*' topic prefixes.
Non-nil restricts the topic creation and modification
functions to asterix-padded prefixes, so they look exactly
like the original Emacs-outline style prefixes.
Whatever the setting of this variable, both old and new style prefixes
are always respected by the topic maneuvering functions."
:type 'boolean
:group 'allout)
(make-variable-buffer-local 'allout-old-style-prefixes)
(put 'allout-old-style-prefixes 'safe-local-variable
(if (fboundp 'booleanp) 'booleanp '(lambda (x) (member x '(t nil)))))
(defcustom allout-stylish-prefixes t
"*Do fancy stuff with topic prefix bullets according to level, etc.
Non-nil enables topic creation, modification, and repositioning
functions to vary the topic bullet char (the char that marks the topic
depth) just preceding the start of the topic text) according to level.
Otherwise, only asterisks (`*') and distinctive bullets are used.
This is how an outline can look (but sans indentation) with stylish
prefixes:
* Top level
.* A topic
. + One level 3 subtopic
. . One level 4 subtopic
. . A second 4 subtopic
. + Another level 3 subtopic
. #1 A numbered level 4 subtopic
. #2 Another
. ! Another level 4 subtopic with a different distinctive bullet
. #4 And another numbered level 4 subtopic
This would be an outline with stylish prefixes inhibited (but the
numbered and other distinctive bullets retained):
* Top level
.* A topic
. * One level 3 subtopic
. * One level 4 subtopic
. * A second 4 subtopic
. * Another level 3 subtopic
. #1 A numbered level 4 subtopic
. #2 Another
. ! Another level 4 subtopic with a different distinctive bullet
. #4 And another numbered level 4 subtopic
Stylish and constant prefixes (as well as old-style prefixes) are
always respected by the topic maneuvering functions, regardless of
this variable setting.
The setting of this var is not relevant when `allout-old-style-prefixes'
is non-nil."
:type 'boolean
:group 'allout)
(make-variable-buffer-local 'allout-stylish-prefixes)
(put 'allout-stylish-prefixes 'safe-local-variable
(if (fboundp 'booleanp) 'booleanp '(lambda (x) (member x '(t nil)))))
(defcustom allout-numbered-bullet "#"
"*String designating bullet of topics that have auto-numbering; nil for none.
Topics having this bullet have automatic maintenance of a sibling
sequence-number tacked on, just after the bullet. Conventionally set
to \"#\", you can set it to a bullet of your choice. A nil value
disables numbering maintenance."
:type '(choice (const nil) string)
:group 'allout)
(make-variable-buffer-local 'allout-numbered-bullet)
(put 'allout-numbered-bullet 'safe-local-variable
(if (fboundp 'string-or-null-p)
'string-or-null-p
'(lambda (x) (or (stringp x) (null x)))))
(defcustom allout-file-xref-bullet "@"
"*Bullet signifying file cross-references, for `allout-resolve-xref'.
Set this var to the bullet you want to use for file cross-references."
:type '(choice (const nil) string)
:group 'allout)
(put 'allout-file-xref-bullet 'safe-local-variable
(if (fboundp 'string-or-null-p)
'string-or-null-p
'(lambda (x) (or (stringp x) (null x)))))
(defcustom allout-presentation-padding 2
"*Presentation-format white-space padding factor, for greater indent."
:type 'integer
:group 'allout)
(make-variable-buffer-local 'allout-presentation-padding)
(put 'allout-presentation-padding 'safe-local-variable 'integerp)
(defcustom allout-abbreviate-flattened-numbering nil
"*If non-nil, `allout-flatten-exposed-to-buffer' abbreviates topic
numbers to minimal amount with some context. Otherwise, entire
numbers are always used."
:type 'boolean
:group 'allout)
(defcustom allout-number-pages nil
"*Non-nil turns on page numbering for LaTeX formatting of an outline."
:type 'boolean
:group 'allout)
(defcustom allout-label-style "\\large\\bf"
"*Font and size of labels for LaTeX formatting of an outline."
:type 'string
:group 'allout)
(defcustom allout-head-line-style "\\large\\sl "
"*Font and size of entries for LaTeX formatting of an outline."
:type 'string
:group 'allout)
(defcustom allout-body-line-style " "
"*Font and size of entries for LaTeX formatting of an outline."
:type 'string
:group 'allout)
(defcustom allout-title-style "\\Large\\bf"
"*Font and size of titles for LaTeX formatting of an outline."
:type 'string
:group 'allout)
(defcustom allout-title '(or buffer-file-name (buffer-name))
"*Expression to be evaluated to determine the title for LaTeX
formatted copy."
:type 'sexp
:group 'allout)
(defcustom allout-line-skip ".05cm"
"*Space between lines for LaTeX formatting of an outline."
:type 'string
:group 'allout)
(defcustom allout-indent ".3cm"
"*LaTeX formatted depth-indent spacing."
:type 'string
:group 'allout)
(defgroup allout-encryption nil
"Settings for topic encryption features of allout outliner."
:group 'allout)
(defcustom allout-topic-encryption-bullet "~"
"*Bullet signifying encryption of the entry's body."
:type '(choice (const nil) string)
:version "22.0"
:group 'allout-encryption)
(defcustom allout-passphrase-verifier-handling t
"*Enable use of symmetric encryption passphrase verifier if non-nil.
See the docstring for the `allout-enable-file-variable-adjustment'
variable for details about allout ajustment of file variables."
:type 'boolean
:version "22.0"
:group 'allout-encryption)
(make-variable-buffer-local 'allout-passphrase-verifier-handling)
(defcustom allout-passphrase-hint-handling 'always
"*Dictate outline encryption passphrase reminder handling:
always - always show reminder when prompting
needed - show reminder on passphrase entry failure
disabled - never present or adjust reminder
See the docstring for the `allout-enable-file-variable-adjustment'
variable for details about allout ajustment of file variables."
:type '(choice (const always)
(const needed)
(const disabled))
:version "22.0"
:group 'allout-encryption)
(make-variable-buffer-local 'allout-passphrase-hint-handling)
(defcustom allout-encrypt-unencrypted-on-saves t
"*When saving, should topics pending encryption be encrypted?
The idea is to prevent file-system exposure of any un-encrypted stuff, and
mostly covers both deliberate file writes and auto-saves.
- Yes: encrypt all topics pending encryption, even if it's the one
currently being edited. (In that case, the currently edited topic
will be automatically decrypted before any user interaction, so they
can continue editing but the copy on the file system will be
encrypted.)
Auto-saves will use the \"All except current topic\" mode if this
one is selected, to avoid practical difficulties - see below.
- All except current topic: skip the topic currently being edited, even if
it's pending encryption. This may expose the current topic on the
file sytem, but avoids the nuisance of prompts for the encryption
passphrase in the middle of editing for, eg, autosaves.
This mode is used for auto-saves for both this option and \"Yes\".
- No: leave it to the user to encrypt any unencrypted topics.
For practical reasons, auto-saves always use the 'except-current policy
when auto-encryption is enabled. (Otherwise, spurious passphrase prompts
and unavoidable timing collisions are too disruptive.) If security for a
file requires that even the current topic is never auto-saved in the clear,
disable auto-saves for that file."
:type '(choice (const :tag "Yes" t)
(const :tag "All except current topic" except-current)
(const :tag "No" nil))
:version "22.0"
:group 'allout-encryption)
(make-variable-buffer-local 'allout-encrypt-unencrypted-on-saves)
(defgroup allout-developer nil
"Settings for topic encryption features of allout outliner."
:group 'allout)
(defcustom allout-run-unit-tests-on-load nil
"*When non-nil, unit tests will be run at end of loading the allout module.
Generally, allout code developers are the only ones who'll want to set this.
\(If set, this makes it an even better practice to exercise changes by
doing byte-compilation with a repeat count, so the file is loaded after
compilation.)
See `allout-run-unit-tests' to see what's run."
:type 'boolean
:group 'allout-developer)
(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)
(defvar allout-keybindings-list ()
"*List of `allout-mode' key / function bindings, for `allout-mode-map'.
String or vector key will be prefaced with `allout-command-prefix',
unless optional third, non-nil element is present.")
(setq allout-keybindings-list
'(
("\C-n" allout-next-visible-heading)
("\C-p" allout-previous-visible-heading)
("\C-u" allout-up-current-level)
("\C-f" allout-forward-current-level)
("\C-b" allout-backward-current-level)
("\C-a" allout-beginning-of-current-entry)
("\C-e" allout-end-of-entry)
("\C-i" allout-show-children)
("\C-s" allout-show-current-subtree)
("\C-h" allout-hide-current-subtree)
("h" allout-hide-current-subtree)
("\C-o" allout-show-current-entry)
("!" allout-show-all)
("x" allout-toggle-current-subtree-encryption)
(" " allout-open-sibtopic)
("." allout-open-subtopic)
("," allout-open-supertopic)
("'" allout-shift-in)
(">" allout-shift-in)
("<" allout-shift-out)
("\C-m" allout-rebullet-topic)
("*" allout-rebullet-current-heading)
("#" allout-number-siblings)
("\C-k" allout-kill-line t)
("\M-k" allout-copy-line-as-kill t)
("\C-y" allout-yank t)
("\M-y" allout-yank-pop t)
("\C-k" allout-kill-topic)
("\M-k" allout-copy-topic-as-kill)
("@" allout-resolve-xref)
("=c" allout-copy-exposed-to-buffer)
("=i" allout-indented-exposed-to-buffer)
("=t" allout-latexify-exposed)
("=p" allout-flatten-exposed-to-buffer)))
(defcustom allout-inhibit-auto-fill nil
"*If non-nil, auto-fill will be inhibited in the allout buffers.
You can customize this setting to set it for all allout buffers, or set it
in individual buffers if you want to inhibit auto-fill only in particular
buffers. (You could use a function on `allout-mode-hook' to inhibit
auto-fill according, eg, to the major mode.)
If you don't set this and auto-fill-mode is enabled, allout will use the
value that `normal-auto-fill-function', if any, when allout mode starts, or
else allout's special hanging-indent maintaining auto-fill function,
`allout-auto-fill'."
:type 'boolean
:group 'allout)
(make-variable-buffer-local 'allout-inhibit-auto-fill)
(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."
:type 'boolean
:group 'allout)
(make-variable-buffer-local 'allout-use-hanging-indents)
(put 'allout-use-hanging-indents 'safe-local-variable
(if (fboundp 'booleanp) 'booleanp '(lambda (x) (member x '(t nil)))))
(defcustom allout-reindent-bodies (if allout-use-hanging-indents
'text)
"*Non-nil enables auto-adjust of topic body hanging indent with depth shifts.
When active, topic body lines that are indented even with or beyond
their topic header are reindented to correspond with depth shifts of
the header.
A value of t enables reindent in non-programming-code buffers, ie
those that do not have the variable `comment-start' set. A value of
`force' enables reindent whether or not `comment-start' is set."
:type '(choice (const nil) (const t) (const text) (const force))
:group 'allout)
(make-variable-buffer-local 'allout-reindent-bodies)
(put 'allout-reindent-bodies 'safe-local-variable
'(lambda (x) (memq x '(nil t text force))))
(defcustom allout-enable-file-variable-adjustment t
"*If non-nil, some allout outline actions edit Emacs local file var text.
This can range from changes to existing entries, addition of new ones,
and creation of a new local variables section when necessary.
Emacs file variables adjustments are also inhibited if `enable-local-variables'
is nil.
Operations potentially causing edits include allout encryption routines.
For details, see `allout-toggle-current-subtree-encryption's docstring."
:type 'boolean
:group 'allout)
(make-variable-buffer-local 'allout-enable-file-variable-adjustment)
(defvar allout-version "2.2.1"
"Version of currently loaded outline package. (allout.el)")
(defun allout-version (&optional here)
"Return string describing the loaded outline version."
(interactive "P")
(let ((msg (concat "Allout Outline Mode v " allout-version)))
(if here (insert msg))
(message "%s" msg)
msg))
(defvar allout-mode nil "Allout outline mode minor-mode flag.")
(make-variable-buffer-local 'allout-mode)
(defvar allout-layout nil "Buffer-specific setting for allout layout.
In buffers where this is non-nil (and if `allout-init' has been run, to
enable this behavior), `allout-mode' will be automatically activated. The
layout dictated by the value will be used to set the initial exposure when
`allout-mode' is activated.
\*You should not setq-default this variable non-nil unless you want every
visited file to be treated as an allout file.*
The value would typically be set by a file local variable. For
example, the following lines at the bottom of an Emacs Lisp file:
;;;Local variables:
;;;allout-layout: (0 : -1 -1 0)
;;;End:
dictate activation of `allout-mode' mode when the file is visited
\(presuming allout-init was already run), followed by the
equivalent of `(allout-expose-topic 0 : -1 -1 0)'. (This is
the layout used for the allout.el source file.)
`allout-default-layout' describes the specification format.
`allout-layout' can additionally have the value `t', in which
case the value of `allout-default-layout' is used.")
(make-variable-buffer-local 'allout-layout)
(put 'allout-layout 'safe-local-variable
'(lambda (x) (or (numberp x) (listp x) (memq x '(: * + -)))))
(defvar allout-regexp ""
"*Regular expression to match the beginning of a heading line.
Any line whose beginning matches this regexp is considered a
heading. This var is set according to the user configuration vars
by `set-allout-regexp'.")
(make-variable-buffer-local 'allout-regexp)
(defvar allout-bullets-string ""
"A string dictating the valid set of outline topic bullets.
This var should *not* be set by the user - it is set by `set-allout-regexp',
and is produced from the elements of `allout-plain-bullets-string'
and `allout-distinctive-bullets-string'.")
(make-variable-buffer-local 'allout-bullets-string)
(defvar allout-bullets-string-len 0
"Length of current buffers' `allout-plain-bullets-string'.")
(make-variable-buffer-local 'allout-bullets-string-len)
(defvar allout-depth-specific-regexp ""
"*Regular expression to match a heading line prefix for a particular depth.
This expression is used to search for depth-specific topic
headers at depth 2 and greater. Use `allout-depth-one-regexp'
for to seek topics at depth one.
This var is set according to the user configuration vars by
`set-allout-regexp'. It is prepared with format strings for two
decimal numbers, which should each be one less than the depth of the
topic prefix to be matched.")
(make-variable-buffer-local 'allout-depth-specific-regexp)
(defvar allout-depth-one-regexp ""
"*Regular expression to match a heading line prefix for depth one.
This var is set according to the user configuration vars by
`set-allout-regexp'. It is prepared with format strings for two
decimal numbers, which should each be one less than the depth of the
topic prefix to be matched.")
(make-variable-buffer-local 'allout-depth-one-regexp)
(defvar allout-line-boundary-regexp ()
"`allout-regexp' with outline style beginning-of-line anchor.
This is properly set by `set-allout-regexp'.")
(make-variable-buffer-local 'allout-line-boundary-regexp)
(defvar allout-bob-regexp ()
"Like `allout-line-boundary-regexp', for headers at beginning of buffer.")
(make-variable-buffer-local 'allout-bob-regexp)
(defvar allout-header-subtraction (1- (length allout-header-prefix))
"Allout-header prefix length to subtract when computing topic depth.")
(make-variable-buffer-local 'allout-header-subtraction)
(defvar allout-plain-bullets-string-len (length allout-plain-bullets-string)
"Length of `allout-plain-bullets-string', updated by `set-allout-regexp'.")
(make-variable-buffer-local 'allout-plain-bullets-string-len)
(defconst allout-doublecheck-at-and-shallower 2
"Validate apparent topics of this depth and shallower as being non-aberrant.
Verified with `allout-aberrant-container-p'. This check's usefulness is
limited to shallow depths, because the determination of aberrance
is according to the mistaken item being followed by a legitimate item of
excessively greater depth.")
(defun allout-reset-header-lead (header-lead)
"*Reset the leading string used to identify topic headers."
(interactive "sNew lead string: ")
(setq allout-header-prefix header-lead)
(setq allout-header-subtraction (1- (length allout-header-prefix)))
(set-allout-regexp))
(defun allout-lead-with-comment-string (&optional header-lead)
"*Set the topic-header leading string to specified string.
Useful when for encapsulating outline structure in programming
language comments. Returns the leading string."
(interactive "P")
(if (not (stringp header-lead))
(setq header-lead (read-string
"String prefix for topic headers: ")))
(setq allout-reindent-bodies nil)
(allout-reset-header-lead header-lead)
header-lead)
(defun allout-infer-header-lead-and-primary-bullet ()
"Determine appropriate `allout-header-prefix' and `allout-primary-bullet'.
Works according to settings of:
`comment-start'
`allout-header-prefix' (default)
`allout-use-mode-specific-leader'
and `allout-mode-leaders'.
Apply this via (re)activation of `allout-mode', rather than
invoking it directly."
(let* ((use-leader (and (boundp 'allout-use-mode-specific-leader)
(if (or (stringp allout-use-mode-specific-leader)
(memq allout-use-mode-specific-leader
'(allout-mode-leaders
comment-start
t)))
allout-use-mode-specific-leader
t)))
(leader
(cond
((not use-leader) nil)
((stringp use-leader) use-leader)
(t (or (and (memq use-leader '(t allout-mode-leaders))
(cdr (assq major-mode allout-mode-leaders)))
(and (memq use-leader '(t comment-start))
comment-start
(concat
(if (string= " "
(substring comment-start
(1- (length comment-start))))
(substring comment-start 0 -1)
(concat comment-start comment-start comment-start))
"_")))))))
(if (not leader)
nil
(setq allout-header-prefix leader)
(if (not allout-old-style-prefixes)
(setq allout-primary-bullet leader))
allout-header-prefix)))
(defalias 'allout-infer-header-lead
'allout-infer-header-lead-and-primary-bullet)
(defun allout-infer-body-reindent ()
"Determine proper setting for `allout-reindent-bodies'.
Depends on default setting of `allout-reindent-bodies' (which see)
and presence of setting for `comment-start', to tell whether the
file is programming code."
(if (and allout-reindent-bodies
comment-start
(not (eq 'force allout-reindent-bodies)))
(setq allout-reindent-bodies nil)))
(defun set-allout-regexp ()
"Generate proper topic-header regexp form for outline functions.
Works with respect to `allout-plain-bullets-string' and
`allout-distinctive-bullets-string'.
Also refresh various data structures that hinge on the regexp."
(interactive)
(setq allout-bullets-string "")
(let ((strings (list 'allout-plain-bullets-string
'allout-distinctive-bullets-string
'allout-primary-bullet))
cur-string
cur-len
cur-char
index)
(while strings
(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))
(setq allout-bullets-string
(concat allout-bullets-string
(cond
((eq cur-char ?-) "--")
((eq cur-char ?\]) "")
(t (regexp-quote (char-to-string cur-char))))))
(setq index (1+ index)))
(setq strings (cdr strings)))
)
(setq allout-plain-bullets-string-len (length allout-plain-bullets-string))
(setq allout-header-subtraction (1- (length allout-header-prefix)))
(let (new-part old-part)
(setq new-part (concat "\\("
(regexp-quote allout-header-prefix)
"[ \t]*"
"[" allout-bullets-string "]"
"\\)")
old-part (concat "\\("
(regexp-quote allout-primary-bullet)
"\\|"
(regexp-quote allout-header-prefix)
"\\)"
"+"
" ?[^" allout-primary-bullet "]")
allout-regexp (concat new-part
"\\|"
old-part
"\\|\^l")
allout-line-boundary-regexp (concat "\n" new-part
"\\|"
"\n" old-part)
allout-bob-regexp (concat "\\`" new-part
"\\|"
"\\`" old-part))
(setq allout-depth-specific-regexp
(concat "\\(^\\|\\`\\)"
"\\("
"\\("
(allout-format-quote (regexp-quote allout-header-prefix))
" \\{%s\\}"
"[" (allout-format-quote allout-bullets-string) "]"
"\\)"
(if (< 0 allout-header-subtraction)
""
(concat "\\|\\("
(allout-format-quote
(regexp-quote allout-primary-bullet))
(allout-format-quote
(regexp-quote allout-primary-bullet))
(allout-format-quote
(regexp-quote allout-primary-bullet))
"\\{%s\\}"
"[^"
(allout-format-quote allout-primary-bullet)
"]\\)"
))
"\\)"
))
(setq allout-depth-one-regexp
(concat "\\(^\\|\\`\\)"
"\\("
"\\("
(regexp-quote allout-header-prefix)
" *"
(concat "[^ " allout-bullets-string "]")
"\\)"
(if (< 0 allout-header-subtraction)
""
(concat "\\|"
(regexp-quote allout-primary-bullet)
"[^" allout-primary-bullet "]"))
"\\)"
))))
(defvar allout-mode-map nil "Keybindings for (allout) outline minor mode.")
(defun produce-allout-mode-map (keymap-list &optional base-map)
"Produce keymap for use as allout-mode-map, from KEYMAP-LIST.
Built on top of optional BASE-MAP, or empty sparse map if none specified.
See doc string for allout-keybindings-list for format of binding list."
(let ((map (or base-map (make-sparse-keymap)))
(pref (list allout-command-prefix)))
(mapcar (function
(lambda (cell)
(let ((add-pref (null (cdr (cdr cell))))
(key-suff (list (car cell))))
(apply 'define-key
(list map
(apply 'concat (if add-pref
(append pref key-suff)
key-suff))
(car (cdr cell)))))))
keymap-list)
map))
(defvar allout-mode-exposure-menu)
(defvar allout-mode-editing-menu)
(defvar allout-mode-navigation-menu)
(defvar allout-mode-misc-menu)
(defun produce-allout-mode-menubar-entries ()
(require 'easymenu)
(easy-menu-define allout-mode-exposure-menu
allout-mode-map
"Allout outline exposure menu."
'("Exposure"
["Show Entry" allout-show-current-entry t]
["Show Children" allout-show-children t]
["Show Subtree" allout-show-current-subtree t]
["Hide Subtree" allout-hide-current-subtree t]
["Hide Leaves" allout-hide-current-leaves t]
"----"
["Show All" allout-show-all t]))
(easy-menu-define allout-mode-editing-menu
allout-mode-map
"Allout outline editing menu."
'("Headings"
["Open Sibling" allout-open-sibtopic t]
["Open Subtopic" allout-open-subtopic t]
["Open Supertopic" allout-open-supertopic t]
"----"
["Shift Topic In" allout-shift-in t]
["Shift Topic Out" allout-shift-out t]
["Rebullet Topic" allout-rebullet-topic t]
["Rebullet Heading" allout-rebullet-current-heading t]
["Number Siblings" allout-number-siblings t]
"----"
["Toggle Topic Encryption"
allout-toggle-current-subtree-encryption
(> (allout-current-depth) 1)]))
(easy-menu-define allout-mode-navigation-menu
allout-mode-map
"Allout outline navigation menu."
'("Navigation"
["Next Visible Heading" allout-next-visible-heading t]
["Previous Visible Heading"
allout-previous-visible-heading t]
"----"
["Up Level" allout-up-current-level t]
["Forward Current Level" allout-forward-current-level t]
["Backward Current Level"
allout-backward-current-level t]
"----"
["Beginning of Entry"
allout-beginning-of-current-entry t]
["End of Entry" allout-end-of-entry t]
["End of Subtree" allout-end-of-current-subtree t]))
(easy-menu-define allout-mode-misc-menu
allout-mode-map
"Allout outlines miscellaneous bindings."
'("Misc"
["Version" allout-version t]
"----"
["Duplicate Exposed" allout-copy-exposed-to-buffer t]
["Duplicate Exposed, numbered"
allout-flatten-exposed-to-buffer t]
["Duplicate Exposed, indented"
allout-indented-exposed-to-buffer t]
"----"
["Set Header Lead" allout-reset-header-lead t]
["Set New Exposure" allout-expose-topic t])))
(defvar allout-mode-prior-settings nil
"Internal `allout-mode' use; settings to be resumed on mode deactivation.
See `allout-add-resumptions' and `allout-do-resumptions'.")
(make-variable-buffer-local 'allout-mode-prior-settings)
(defun allout-add-resumptions (&rest pairs)
"Set name/value PAIRS.
Old settings are preserved for later resumption using `allout-do-resumptions'.
The new values are set as a buffer local. On resumption, the prior buffer
scope of the variable is restored along with its value. If it was a void
buffer-local value, then it is left as nil on resumption.
The pairs are lists whose car is the name of the variable and car of the
cdr is the new value: '(some-var some-value)'. The pairs can actually be
triples, where the third element qualifies the disposition of the setting,
as described further below.
If the optional third element is the symbol 'extend, then the new value
created by `cons'ing the second element of the pair onto the front of the
existing value.
If the optional third element is the symbol 'append, then the new value is
extended from the existing one by `append'ing a list containing the second
element of the pair onto the end of the existing value.
Extension, and resumptions in general, should not be used for hook
functions - use the 'local mode of `add-hook' for that, instead.
The settings are stored on `allout-mode-prior-settings'."
(while pairs
(let* ((pair (pop pairs))
(name (car pair))
(value (cadr pair))
(qualifier (if (> (length pair) 2)
(caddr pair)))
prior-value)
(if (not (symbolp name))
(error "Pair's name, %S, must be a symbol, not %s"
name (type-of name)))
(setq prior-value (condition-case nil
(symbol-value name)
(void-variable nil)))
(when (not (assoc name allout-mode-prior-settings))
(if (local-variable-p name)
(push (list name prior-value) allout-mode-prior-settings)
(push (list name) allout-mode-prior-settings)
(make-local-variable name)))
(if qualifier
(cond ((eq qualifier 'extend)
(if (not (listp prior-value))
(error "extension of non-list prior value attempted")
(set name (cons value prior-value))))
((eq qualifier 'append)
(if (not (listp prior-value))
(error "appending of non-list prior value attempted")
(set name (append prior-value (list value)))))
(t (error "unrecognized setting qualifier `%s' encountered"
qualifier)))
(set name value)))))
(defun allout-do-resumptions ()
"Resume all name/value settings registered by `allout-add-resumptions'.
This is used when concluding allout-mode, to resume selected variables to
their settings before allout-mode was started."
(while allout-mode-prior-settings
(let* ((pair (pop allout-mode-prior-settings))
(name (car pair))
(value-cell (cdr pair)))
(if (not value-cell)
(kill-local-variable name)
(set name (car value-cell))))))
(defmacro allout-unprotected (expr)
"Enable internal outline operations to alter invisible text."
`(let ((inhibit-read-only (if (not buffer-read-only) t))
(inhibit-field-text-motion t))
,expr))
(defvar allout-mode-hook nil
"*Hook that's run when allout mode starts.")
(defvar allout-mode-deactivate-hook nil
"*Hook that's run when allout mode ends.")
(defvar allout-exposure-category nil
"Symbol for use as allout invisible-text overlay category.")
(defvar allout-view-change-hook nil
"*(Deprecated) A hook run after allout outline exposure changes.
Switch to using `allout-exposure-change-hook' instead. Both hooks are
currently respected, but the other conveys the details of the exposure
change via explicit parameters, and this one will eventually be disabled in
a subsequent allout version.")
(defvar allout-exposure-change-hook nil
"*Hook that's run after allout outline subtree exposure changes.
It is run at the conclusion of `allout-flag-region'.
Functions on the hook must take three arguments:
- from - integer indicating the point at the start of the change.
- to - integer indicating the point of the end of the change.
- flag - change mode: nil for exposure, otherwise concealment.
This hook might be invoked multiple times by a single command.
This hook is replacing `allout-view-change-hook', which is being deprecated
and eventually will not be invoked.")
(defvar allout-structure-added-hook nil
"*Hook that's run after addition of items to the outline.
Functions on the hook should take two arguments:
- new-start - integer indicating the point at the start of the first new item.
- new-end - integer indicating the point of the end of the last new item.
Some edits that introduce new items may missed by this hook -
specifically edits that native allout routines do not control.
This hook might be invoked multiple times by a single command.")
(defvar allout-structure-deleted-hook nil
"*Hook that's run after disciplined deletion of subtrees from the outline.
Functions on the hook must take two arguments:
- depth - integer indicating the depth of the subtree that was deleted.
- removed-from - integer indicating the point where the subtree was removed.
Some edits that remove or invalidate items may missed by this hook -
specifically edits that native allout routines do not control.
This hook might be invoked multiple times by a single command.")
(defvar allout-structure-shifted-hook nil
"*Hook that's run after shifting of items in the outline.
Functions on the hook should take two arguments:
- depth-change - integer indicating depth increase, negative for decrease
- start - integer indicating the start point of the shifted parent item.
Some edits that shift items can be missed by this hook - specifically edits
that native allout routines do not control.
This hook might be invoked multiple times by a single command.")
(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)
(defvar allout-v18/19-file-var-hack nil
"Horrible hack used to prevent invalid multiple triggering of outline
mode from prop-line file-var activation. Used by `allout-mode' function
to track repeats.")
(defvar allout-passphrase-verifier-string nil
"Setting used to test solicited encryption passphrases against the one
already associated with a file.
It consists of an encrypted random string useful only to verify that a
passphrase entered by the user is effective for decryption. The passphrase
itself is \*not* recorded in the file anywhere, and the encrypted contents
are random binary characters to avoid exposing greater susceptibility to
search attacks.
The verifier string is retained as an Emacs file variable, as well as in
the Emacs buffer state, if file variable adjustments are enabled. See
`allout-enable-file-variable-adjustment' for details about that.")
(make-variable-buffer-local 'allout-passphrase-verifier-string)
(put 'allout-passphrase-verifier-string 'safe-local-variable 'stringp)
(defvar allout-passphrase-hint-string ""
"Variable used to retain reminder string for file's encryption passphrase.
See the description of `allout-passphrase-hint-handling' for details about how
the reminder is deployed.
The hint is retained as an Emacs file variable, as well as in the Emacs buffer
state, if file variable adjustments are enabled. See
`allout-enable-file-variable-adjustment' for details about that.")
(make-variable-buffer-local 'allout-passphrase-hint-string)
(setq-default allout-passphrase-hint-string "")
(put 'allout-passphrase-hint-string 'safe-local-variable 'stringp)
(defvar allout-after-save-decrypt nil
"Internal variable, is nil or has the value of two points:
- the location of a topic to be decrypted after saving is done
- where to situate the cursor after the decryption is performed
This is used to decrypt the topic that was currently being edited, if it
was encrypted automatically as part of a file write or autosave.")
(make-variable-buffer-local 'allout-after-save-decrypt)
(defvar allout-encryption-plaintext-sanitization-regexps nil
"List of regexps whose matches are removed from plaintext before encryption.
This is for the sake of removing artifacts, like escapes, that are added on
and not actually part of the original plaintext. The removal is done just
prior to encryption.
Entries must be symbols that are bound to the desired values.
Each value can be a regexp or a list with a regexp followed by a
substitution string. If it's just a regexp, all its matches are removed
before the text is encrypted. If it's a regexp and a substitution, the
substition is used against the regexp matches, a la `replace-match'.")
(make-variable-buffer-local 'allout-encryption-text-removal-regexps)
(defvar allout-encryption-ciphertext-rejection-regexps nil
"Variable for regexps matching plaintext to remove before encryption.
This is for the sake of redoing encryption in cases where the ciphertext
incidentally contains strings that would disrupt mode operation -
for example, a line that happens to look like an allout-mode topic prefix.
Entries must be symbols that are bound to the desired regexp values.
The encryption will be retried up to
`allout-encryption-ciphertext-rejection-limit' times, after which an error
is raised.")
(make-variable-buffer-local 'allout-encryption-ciphertext-rejection-regexps)
(defvar allout-encryption-ciphertext-rejection-ceiling 5
"Limit on number of times encryption ciphertext is rejected.
See `allout-encryption-ciphertext-rejection-regexps' for rejection reasons.")
(make-variable-buffer-local 'allout-encryption-ciphertext-rejection-ceiling)
(defmacro allout-mode-p ()
"Return t if `allout-mode' is active in current buffer."
'allout-mode)
(defun allout-write-file-hook-handler ()
"Implement `allout-encrypt-unencrypted-on-saves' policy for file writes."
(if (or (not (allout-mode-p))
(not (boundp 'allout-encrypt-unencrypted-on-saves))
(not allout-encrypt-unencrypted-on-saves))
nil
(let ((except-mark (and (equal allout-encrypt-unencrypted-on-saves
'except-current)
(point-marker))))
(if (save-excursion (goto-char (point-min))
(allout-next-topic-pending-encryption except-mark))
(progn
(message "auto-encrypting pending topics")
(sit-for 0)
(condition-case failure
(setq allout-after-save-decrypt
(allout-encrypt-decrypted except-mark))
(error (progn
(message
"allout-write-file-hook-handler suppressing error %s"
failure)
(sit-for 2))))))
))
nil)
(defun allout-auto-save-hook-handler ()
"Implement `allout-encrypt-unencrypted-on-saves' policy for auto save."
(if (and (allout-mode-p) allout-encrypt-unencrypted-on-saves)
(let ((allout-encrypt-unencrypted-on-saves 'except-current))
(allout-write-file-hook-handler))))
(defun allout-after-saves-handler ()
"Decrypt topic encrypted for save, if it's currently being edited.
Ie, if it was pending encryption and contained the point in its body before
the save.
We use values stored in `allout-after-save-decrypt' to locate the topic
and the place for the cursor after the decryption is done."
(if (not (and (allout-mode-p)
(boundp 'allout-after-save-decrypt)
allout-after-save-decrypt))
t
(goto-char (car allout-after-save-decrypt))
(let ((was-modified (buffer-modified-p)))
(allout-toggle-subtree-encryption)
(if (not was-modified)
(set-buffer-modified-p nil)))
(goto-char (cadr allout-after-save-decrypt))
(setq allout-after-save-decrypt nil))
)
(defvar allout-inhibit-aberrance-doublecheck nil
"Internal state, for momentarily inhibits aberrance doublecheck.
This should only be momentarily let-bound non-nil, not set
non-nil in a lasting way.")
(defvar allout-explicitly-deactivated nil
"If t, `allout-mode's last deactivation was deliberate.
So `allout-post-command-business' should not reactivate it...")
(make-variable-buffer-local 'allout-explicitly-deactivated)
(defun allout-init (&optional mode)
"Prime `allout-mode' to enable/disable auto-activation, wrt `allout-layout'.
MODE is one of the following symbols:
- nil (or no argument) deactivate auto-activation/layout;
- `activate', enable auto-activation only;
- `ask', enable auto-activation, and enable auto-layout but with
confirmation for layout operation solicited from user each time;
- `report', just report and return the current auto-activation state;
- anything else (eg, t) for auto-activation and auto-layout, without
any confirmation check.
Use this function to setup your Emacs session for automatic activation
of allout outline mode, contingent to the buffer-specific setting of
the `allout-layout' variable. (See `allout-layout' and
`allout-expose-topic' docstrings for more details on auto layout).
`allout-init' works by setting up (or removing) the `allout-mode'
find-file-hook, and giving `allout-auto-activation' a suitable
setting.
To prime your Emacs session for full auto-outline operation, include
the following two lines in your Emacs init file:
\(require 'allout)
\(allout-init t)"
(interactive)
(if (interactive-p)
(progn
(setq mode
(completing-read
(concat "Select outline auto setup mode "
"(empty for report, ? for options) ")
'(("nil")("full")("activate")("deactivate")
("ask") ("report") (""))
nil
t))
(if (string= mode "")
(setq mode 'report)
(setq mode (intern-soft mode)))))
(let
((hook 'allout-find-file-hook)
(find-file-hook-var-name (if (boundp 'find-file-hook)
'find-file-hook
'find-file-hooks))
(curr-mode 'allout-auto-activation))
(cond ((not mode)
(set find-file-hook-var-name
(delq hook (symbol-value find-file-hook-var-name)))
(if (interactive-p)
(message "Allout outline mode auto-activation inhibited.")))
((eq mode 'report)
(if (not (memq hook (symbol-value find-file-hook-var-name)))
(allout-init nil)
(allout-init (symbol-value curr-mode))))
(t (add-hook find-file-hook-var-name hook)
(set curr-mode (cond ((eq mode 'activate)
(message
"Outline mode auto-activation enabled.")
'activate)
((eq mode 'report)
(allout-init mode))
((eq mode 'ask)
(message
(concat "Outline mode auto-activation and "
"-layout (upon confirmation) enabled."))
'ask)
((message
"Outline mode auto-activation and -layout enabled.")
'full)))))))
(defun allout-setup-menubar ()
"Populate the current buffer's menubar with `allout-mode' stuff."
(let ((menus (list allout-mode-exposure-menu
allout-mode-editing-menu
allout-mode-navigation-menu
allout-mode-misc-menu))
cur)
(while menus
(setq cur (car menus)
menus (cdr menus))
(easy-menu-add cur))))
(defun allout-overlay-preparations ()
"Set the properties of the allout invisible-text overlay and others."
(setplist 'allout-exposure-category nil)
(put 'allout-exposure-category 'invisible 'allout)
(put 'allout-exposure-category 'evaporate t)
(put 'allout-exposure-category 'isearch-open-invisible
'allout-isearch-end-handler)
(if (featurep 'xemacs)
(put 'allout-exposure-category 'start-open t)
(put 'allout-exposure-category 'insert-in-front-hooks
'(allout-overlay-insert-in-front-handler)))
(put 'allout-exposure-category 'modification-hooks
'(allout-overlay-interior-modification-handler)))
(defun allout-mode (&optional toggle)
"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.
Allout outline mode provides extensive outline oriented formatting and
manipulation. It enables structural editing of outlines, as well as
navigation and exposure. It also is specifically aimed at
accommodating syntax-sensitive text like programming languages. (For
an example, see the allout code itself, which is organized as an allout
outline.)
In addition to typical outline navigation and exposure, allout includes:
- topic-oriented authoring, including keystroke-based topic creation,
repositioning, promotion/demotion, cut, and paste
- incremental search with dynamic exposure and reconcealment of hidden text
- adjustable format, so programming code can be developed in outline-structure
- easy topic encryption and decryption
- \"Hot-spot\" operation, for single-keystroke maneuvering and exposure control
- integral outline layout, for automatic initial exposure when visiting a file
- independent extensibility, using comprehensive exposure and authoring hooks
and many other features.
Below is a description of the key bindings, and then explanation of
special `allout-mode' features and terminology. See also the outline
menubar additions for quick reference to many of the features, and see
the docstring of the function `allout-init' for instructions on
priming your emacs session for automatic activation of `allout-mode'.
The bindings are dictated by the customizable `allout-keybindings-list'
variable. We recommend customizing `allout-command-prefix' to use just
`\\C-c' as the command prefix, if the allout bindings don't conflict with
any personal bindings you have on \\C-c. In any case, outline structure
navigation and authoring is simplified by positioning the cursor on an
item's bullet character, the \"hot-spot\" - then you can invoke allout
commands with just the un-prefixed, un-control-shifted command letters.
This is described further in the HOT-SPOT Operation section.
Exposure Control:
----------------
\\[allout-hide-current-subtree] `allout-hide-current-subtree'
\\[allout-show-children] `allout-show-children'
\\[allout-show-current-subtree] `allout-show-current-subtree'
\\[allout-show-current-entry] `allout-show-current-entry'
\\[allout-show-all] `allout-show-all'
Navigation:
----------
\\[allout-next-visible-heading] `allout-next-visible-heading'
\\[allout-previous-visible-heading] `allout-previous-visible-heading'
\\[allout-up-current-level] `allout-up-current-level'
\\[allout-forward-current-level] `allout-forward-current-level'
\\[allout-backward-current-level] `allout-backward-current-level'
\\[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-line] `allout-beginning-of-line' - like regular beginning-of-line, but
if immediately repeated cycles to the beginning of the current item
and then to the hot-spot (if `allout-beginning-of-line-cycles' is set).
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.
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
current topic
\\[allout-rebullet-topic] `allout-rebullet-topic' Reconcile bullets of topic and
its' offspring - distinctive bullets are not changed, others
are alternated according to nesting depth.
\\[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-copy-topic-as-kill] `allout-copy-topic-as-kill' Copy current topic, including offspring.
\\[allout-kill-line] `allout-kill-line' kill-line, attending to outline structure.
\\[allout-copy-line-as-kill] `allout-copy-line-as-kill' Copy line but don't delete it.
\\[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
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-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'
Like above 'copy-exposed', but convert topic
prefixes to section.subsection... numeric
format.
\\[eval-expression] (allout-init t) Setup Emacs session for outline mode
auto-activation.
Topic Encryption
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 the contents of the topic
containing the cursor was encrypted for a save, it is
automatically decrypted for continued editing.
The aim of these measures 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.
HOT-SPOT Operation
Hot-spot operation provides a means for easy, single-keystroke outline
navigation and exposure control.
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<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. Regular navigation keys (eg, \\[forward-char], \\[next-line]) don't get
this special translation, so you can use them to get out of the
hot-spot and back to normal editing operation.
In allout-mode, the normal beginning-of-line command (\\[allout-beginning-of-line]]) is
replaced with one that makes it easy to get to the hot-spot. If you
repeat it immediately it cycles (if `allout-beginning-of-line-cycles'
is set) to the beginning of the item and then, if you hit it again
immediately, to the hot-spot. Similarly, `allout-beginning-of-current-entry'
\(\\[allout-beginning-of-current-entry]) moves to the hot-spot when the cursor is already located
at the beginning of the current entry.
Extending Allout
Allout exposure and authoring activites all have associated
hooks, by which independent code can cooperate with allout
without changes to the allout core. Here are key ones:
`allout-mode-hook'
`allout-mode-deactivate-hook'
`allout-exposure-change-hook'
`allout-structure-added-hook'
`allout-structure-deleted-hook'
`allout-structure-shifted-hook'
Terminology
Topic hierarchy constituents - TOPICS and SUBTOPICS:
ITEM: A unitary outline element, including the HEADER and ENTRY text.
TOPIC: An ITEM and any ITEMs contained within it, ie having greater DEPTH
and with no intervening items of lower DEPTH than the container.
CURRENT ITEM:
The visible ITEM most immediately containing the cursor.
DEPTH: The degree of nesting of an ITEM; it increases with containment.
The DEPTH is determined by the HEADER PREFIX. The DEPTH is also
called the:
LEVEL: The same as DEPTH.
ANCESTORS:
Those ITEMs whose TOPICs contain an ITEM.
PARENT: An ITEM's immediate ANCESTOR. It has a DEPTH one less than that
of the ITEM.
OFFSPRING:
The ITEMs contained within an ITEM's TOPIC.
SUBTOPIC:
An OFFSPRING of its ANCESTOR TOPICs.
CHILD:
An immediate SUBTOPIC of its PARENT.
SIBLINGS:
TOPICs having the same PARENT and DEPTH.
Topic text constituents:
HEADER: The first line of an ITEM, include the ITEM PREFIX and HEADER
text.
ENTRY: The text content of an ITEM, before any OFFSPRING, but including
the HEADER text and distinct from the ITEM PREFIX.
BODY: Same as ENTRY.
PREFIX: The leading text of an ITEM which distinguishes it from normal
ENTRY text. Allout recognizes the outline structure according
to the strict PREFIX format. It consists of a PREFIX-LEAD string,
PREFIX-PADDING, and a BULLET. The BULLET might be followed by a
number, indicating the ordinal number of the topic among its
siblings, or an asterisk indicating encryption, plus an optional
space. After that is the ITEM HEADER text, which is not part of
the PREFIX.
The relative length of the PREFIX determines the nesting DEPTH
of the ITEM.
PREFIX-LEAD:
The string at the beginning of a HEADER PREFIX, by default a `.'.
It can be customized by changing the setting of
`allout-header-prefix' and then reinitializing `allout-mode'.
When the PREFIX-LEAD is set to the comment-string of a
programming language, outline structuring can be embedded in
program code without interfering with processing of the text
(by emacs or the language processor) as program code. This
setting happens automatically when allout mode is used in
programming-mode buffers. See `allout-use-mode-specific-leader'
docstring for more detail.
PREFIX-PADDING:
Spaces or asterisks which separate the PREFIX-LEAD and the
bullet, determining the ITEM's DEPTH.
BULLET: A character at the end of the ITEM PREFIX, it must be one of
the characters listed on `allout-plain-bullets-string' or
`allout-distinctive-bullets-string'. When creating a TOPIC,
plain BULLETs are by default used, according to the DEPTH of the
TOPIC. Choice among the distinctive BULLETs is offered when you
provide a universal argugment \(\\[universal-argument]) to the
TOPIC creation command, or when explictly rebulleting a TOPIC. The
significance of the various distinctive bullets is purely by
convention. See the documentation for the above bullet strings for
more details.
EXPOSURE:
The state of a TOPIC which determines the on-screen visibility
of its OFFSPRING and contained ENTRY text.
CONCEALED:
TOPICs and ENTRY text whose EXPOSURE is inhibited. Concealed
text is represented by \"...\" ellipses.
CONCEALED TOPICs are effectively collapsed within an ANCESTOR.
CLOSED: A TOPIC whose immediate OFFSPRING and body-text is CONCEALED.
OPEN: A TOPIC that is not CLOSED, though its OFFSPRING or BODY may be."
(interactive "P")
(let* ((active (and (not (equal major-mode 'outline))
(allout-mode-p)))
(toggle (and toggle
(or (and (listp toggle)(car toggle))
toggle)))
(explicit-activation (and toggle
(or (symbolp toggle)
(and (wholenump toggle)
(not (zerop toggle))))))
(same-complex-command (eq allout-v18/19-file-var-hack
(car command-history)))
(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
)
(setq allout-v18/19-file-var-hack (car command-history))
(cond
((and same-complex-command active (not explicit-activation) (string-match "^19.1[89]" emacs-version)) t)
((and (not explicit-activation)
(or active toggle))
(setq allout-explicitly-deactivated t)
(allout-do-resumptions)
(remove-from-invisibility-spec '(allout . t))
(remove-hook 'pre-command-hook 'allout-pre-command-business t)
(remove-hook 'post-command-hook 'allout-post-command-business t)
(remove-hook 'before-change-functions 'allout-before-change-handler t)
(remove-hook 'isearch-mode-end-hook 'allout-isearch-end-handler t)
(remove-hook write-file-hook-var-name 'allout-write-file-hook-handler t)
(remove-hook 'auto-save-hook 'allout-auto-save-hook-handler t)
(remove-overlays (point-min) (point-max)
'category 'allout-exposure-category)
(setq allout-mode nil)
(run-hooks 'allout-mode-deactivate-hook))
((not active)
(setq allout-explicitly-deactivated nil)
(if allout-old-style-prefixes
(allout-add-resumptions '(allout-primary-bullet "*")))
(allout-overlay-preparations)
(allout-infer-header-lead-and-primary-bullet)
(allout-infer-body-reindent)
(set-allout-regexp)
(allout-add-resumptions
'(allout-encryption-ciphertext-rejection-regexps
allout-line-boundary-regexp
extend)
'(allout-encryption-ciphertext-rejection-regexps
allout-bob-regexp
extend))
(allout-setup-mode-map)
(produce-allout-mode-menubar-entries)
(if (not (member '(allout-mode . allout-mode-map)
minor-mode-map-alist))
(setq minor-mode-map-alist
(cons '(allout-mode . allout-mode-map)
minor-mode-map-alist)))
(add-to-invisibility-spec '(allout . t))
(allout-add-resumptions '(line-move-ignore-invisible t))
(add-hook 'pre-command-hook 'allout-pre-command-business nil t)
(add-hook 'post-command-hook 'allout-post-command-business nil t)
(add-hook 'before-change-functions 'allout-before-change-handler
nil t)
(add-hook 'isearch-mode-end-hook 'allout-isearch-end-handler nil t)
(add-hook write-file-hook-var-name 'allout-write-file-hook-handler
nil t)
(add-hook 'auto-save-hook 'allout-auto-save-hook-handler
nil t)
(if (and auto-fill-function (not allout-inhibit-auto-fill))
(allout-add-resumptions '(auto-fill-function allout-auto-fill)))
(allout-add-resumptions (list 'allout-former-auto-filler
auto-fill-function)
(list 'allout-outside-normal-auto-fill-function
normal-auto-fill-function)
'(normal-auto-fill-function allout-auto-fill)
(list 'paragraph-start
(concat paragraph-start "\\|^\\("
allout-regexp "\\)"))
(list 'paragraph-separate
(concat paragraph-separate "\\|^\\("
allout-regexp "\\)")))
(or (assq 'allout-mode minor-mode-alist)
(setq minor-mode-alist
(cons '(allout-mode " Allout") minor-mode-alist)))
(allout-setup-menubar)
(if allout-layout
(setq do-layout t))
(setq allout-mode t)
(run-hooks 'allout-mode-hook))
((setq do-layout t)
(allout-infer-body-reindent))
)
(let ((use-layout (if (listp allout-layout)
allout-layout
allout-default-layout)))
(if (and do-layout
allout-auto-activation
use-layout
(and (not (eq allout-auto-activation 'activate))
(if (eq allout-auto-activation 'ask)
(if (y-or-n-p (format "Expose %s with layout '%s'? "
(buffer-name)
use-layout))
t
(message "Skipped %s layout." (buffer-name))
nil)
t)))
(save-excursion
(message "Adjusting '%s' exposure..." (buffer-name))
(goto-char 0)
(allout-this-or-next-heading)
(condition-case err
(progn
(apply 'allout-expose-topic (list use-layout))
(message "Adjusting '%s' exposure... done." (buffer-name)))
(error (message "%s" (car (cdr err)))
(sit-for 1))))))
allout-mode
) )
(defun allout-setup-mode-map ()
"Establish allout-mode bindings."
(setq-default allout-mode-map
(produce-allout-mode-map allout-keybindings-list))
(setq allout-mode-map
(produce-allout-mode-map allout-keybindings-list))
(substitute-key-definition 'beginning-of-line
'allout-beginning-of-line
allout-mode-map global-map)
(substitute-key-definition 'move-beginning-of-line
'allout-beginning-of-line
allout-mode-map global-map)
(substitute-key-definition 'end-of-line
'allout-end-of-line
allout-mode-map global-map)
(substitute-key-definition 'move-end-of-line
'allout-end-of-line
allout-mode-map global-map)
(fset 'allout-mode-map allout-mode-map))
(allout-setup-mode-map)
(defalias 'allout-minor-mode 'allout-mode)
(defsubst allout-hidden-p (&optional pos)
"Non-nil if the character after point is invisible."
(eq (get-char-property (or pos (point)) 'invisible) 'allout))
(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))))
(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))
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 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 concealed text? (\"no\" just 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))))
(defun allout-before-change-handler (beg end)
"Protect against changes to invisible text.
See allout-overlay-interior-modification-handler for details."
(if (and (allout-mode-p) undo-in-progress (allout-hidden-p))
(allout-show-to-offshoot))
(when (and (featurep 'xemacs) (allout-mode-p))
(save-excursion
(got-char beg)
(let ((overlay (allout-get-invisibility-overlay)))
(allout-overlay-interior-modification-handler
overlay nil beg end nil)))))
(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)))
(defvar allout-recent-prefix-beginning 0
"Buffer point of the start of the last topic prefix encountered.")
(make-variable-buffer-local 'allout-recent-prefix-beginning)
(defvar allout-recent-prefix-end 0
"Buffer point of the end of the last topic prefix encountered.")
(make-variable-buffer-local 'allout-recent-prefix-end)
(defvar allout-recent-depth 0
"Depth of the last topic prefix encountered.")
(make-variable-buffer-local 'allout-recent-depth)
(defvar allout-recent-end-of-subtree 0
"Buffer point last returned by `allout-end-of-current-subtree'.")
(make-variable-buffer-local 'allout-recent-end-of-subtree)
(defsubst allout-prefix-data ()
"Register allout-prefix state data.
For reference by `allout-recent' funcs. Returns BEGINNING."
(setq allout-recent-prefix-end (or (match-end 1) (match-end 2))
allout-recent-prefix-beginning (or (match-beginning 1)
(match-beginning 2))
allout-recent-depth (max 1 (- allout-recent-prefix-end
allout-recent-prefix-beginning
allout-header-subtraction)))
allout-recent-prefix-beginning)
(defsubst nullify-allout-prefix-data ()
"Mark allout prefix data as being uninformative."
(setq allout-recent-prefix-end (point)
allout-recent-prefix-beginning (point)
allout-recent-depth 0)
allout-recent-prefix-beginning)
(defsubst allout-recent-depth ()
"Return depth of last heading encountered by an outline maneuvering function.
All outline functions which directly do string matches to assess
headings set the variables `allout-recent-prefix-beginning' and
`allout-recent-prefix-end' if successful. This function uses those settings
to return the current depth."
allout-recent-depth)
(defsubst allout-recent-prefix ()
"Like `allout-recent-depth', but returns text of last encountered prefix.
All outline functions which directly do string matches to assess
headings set the variables `allout-recent-prefix-beginning' and
`allout-recent-prefix-end' if successful. This function uses those settings
to return the current prefix."
(buffer-substring-no-properties allout-recent-prefix-beginning
allout-recent-prefix-end))
(defmacro allout-recent-bullet ()
"Like allout-recent-prefix, but returns bullet of last encountered prefix.
All outline functions which directly do string matches to assess
headings set the variables `allout-recent-prefix-beginning' and
`allout-recent-prefix-end' if successful. This function uses those settings
to return the current depth of the most recently matched topic."
'(buffer-substring-no-properties (1- allout-recent-prefix-end)
allout-recent-prefix-end))
(defsubst allout-do-doublecheck ()
"True if current item conditions qualify for checking on topic aberrance."
(and
(not allout-inhibit-aberrance-doublecheck)
(<= allout-recent-depth allout-doublecheck-at-and-shallower)))
(defun allout-aberrant-container-p ()
"True if topic, or next sibling with children, contains them discontinuously.
Discontinuous means an immediate offspring that is nested more
than one level deeper than the topic.
If topic has no offspring, then the next sibling with offspring will
determine whether or not this one is determined to be aberrant.
If true, then the allout-recent-* settings are calibrated on the
offspring that qaulifies it as aberrant, ie with depth that
exceeds the topic by more than one."
(let ((depth (allout-depth))
(start-point (point))
done aberrant)
(save-excursion
(while (and (not done)
(re-search-forward allout-line-boundary-regexp nil 0))
(allout-prefix-data)
(goto-char allout-recent-prefix-beginning)
(cond
((eq allout-recent-depth depth))
((> allout-recent-depth (1+ depth))
(setq done t aberrant t))
(t (setq done t)))))
(if aberrant
aberrant
(goto-char start-point)
(allout-depth)
nil)))
(defun allout-on-current-heading-p ()
"Return non-nil if point is on current visible topics' header line.
Actually, returns prefix beginning point."
(save-excursion
(allout-beginning-of-current-line)
(and (looking-at allout-regexp)
(allout-prefix-data)
(or (not (allout-do-doublecheck))
(not (allout-aberrant-container-p))))))
(defalias 'allout-on-heading-p 'allout-on-current-heading-p)
(defun allout-e-o-prefix-p ()
"True if point is located where current topic prefix ends, heading begins."
(and (save-excursion (let ((inhibit-field-text-motion t))
(beginning-of-line))
(looking-at allout-regexp))
(= (point)(save-excursion (allout-end-of-prefix)(point)))))
(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
(let ((start-point (point)))
(if (and (allout-goto-prefix)
(not (< start-point (point))))
allout-recent-depth
(progn
(nullify-allout-prefix-data)
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)))
(defun allout-get-current-prefix ()
"Topic prefix of the current topic."
(save-excursion
(if (allout-goto-prefix)
(allout-recent-prefix))))
(defun allout-get-bullet ()
"Return bullet of containing topic (visible or not)."
(save-excursion
(and (allout-goto-prefix)
(allout-recent-bullet))))
(defun allout-current-bullet ()
"Return bullet of current (visible) topic heading, or none if none found."
(condition-case nil
(save-excursion
(allout-back-to-current-heading)
(buffer-substring-no-properties (- allout-recent-prefix-end 1)
allout-recent-prefix-end))
(args-out-of-range nil))
)
(defun allout-get-prefix-bullet (prefix)
"Return the bullet of the header prefix string PREFIX."
(if (string-match allout-regexp prefix)
(substring prefix (1- (match-end 2)) (match-end 2))))
(defun allout-sibling-index (&optional depth)
"Item number of this prospective topic among its siblings.
If optional arg DEPTH is greater than current depth, then we're
opening a new level, and return 0.
If less than this depth, ascend to that depth and count..."
(save-excursion
(cond ((and depth (<= depth 0) 0))
((or (null depth) (= depth (allout-depth)))
(let ((index 1))
(while (allout-previous-sibling allout-recent-depth nil)
(setq index (1+ index)))
index))
((< depth allout-recent-depth)
(allout-ascend-to-depth depth)
(allout-sibling-index))
(0))))
(defun allout-topic-flat-index ()
"Return a list indicating point's numeric section.subsect.subsubsect...
Outermost is first."
(let* ((depth (allout-depth))
(next-index (allout-sibling-index depth))
(rev-sibls nil))
(while (> next-index 0)
(setq rev-sibls (cons next-index rev-sibls))
(setq depth (1- depth))
(setq next-index (allout-sibling-index depth)))
rev-sibls)
)
(defun allout-beginning-of-current-line ()
"Like beginning of line, but to visible text."
(let ((inhibit-field-text-motion t))
(move-beginning-of-line 1)
(beginning-of-line)
(while (and (not (bobp)) (or (not (bolp)) (allout-hidden-p)))
(beginning-of-line)
(if (or (allout-hidden-p) (not (bolp)))
(forward-char -1)))))
(defun allout-end-of-current-line ()
"Move to the end of line, past concealed text if any."
(let ((inhibit-field-text-motion t))
(end-of-line)
(while (allout-hidden-p)
(end-of-line)
(if (allout-hidden-p) (forward-char 1)))))
(defun allout-beginning-of-line ()
"Beginning-of-line with `allout-beginning-of-line-cycles' behavior, if set."
(interactive)
(if (or (not allout-beginning-of-line-cycles)
(not (equal last-command this-command)))
(move-beginning-of-line 1)
(allout-depth)
(let ((beginning-of-body
(save-excursion
(while (and (allout-do-doublecheck)
(allout-aberrant-container-p)
(allout-previous-visible-heading 1)))
(allout-beginning-of-current-entry)
(point))))
(cond ((= (current-column) 0)
(goto-char beginning-of-body))
((< (point) beginning-of-body)
(allout-beginning-of-current-line))
((= (point) beginning-of-body)
(goto-char (allout-current-bullet-pos)))
(t (allout-beginning-of-current-line)
(if (< (point) beginning-of-body)
(goto-char beginning-of-body)))))))
(defun allout-end-of-line ()
"End-of-line with `allout-end-of-line-cycles' behavior, if set."
(interactive)
(if (or (not allout-end-of-line-cycles)
(not (equal last-command this-command)))
(allout-end-of-current-line)
(let ((end-of-entry (save-excursion
(allout-end-of-entry)
(point))))
(cond ((not (eolp))
(allout-end-of-current-line))
((or (allout-hidden-p) (save-excursion
(forward-char -1)
(allout-hidden-p)))
(allout-back-to-current-heading)
(allout-show-current-entry)
(allout-show-children)
(allout-end-of-entry))
((>= (point) end-of-entry)
(allout-back-to-current-heading)
(allout-end-of-current-line))
(t (allout-end-of-entry))))))
(defsubst allout-next-heading ()
"Move to the heading for the topic (possibly invisible) after this one.
Returns the location of the heading, or nil if none found.
We skip anomolous low-level topics, a la `allout-aberrant-container-p'."
(if (looking-at allout-regexp)
(forward-char 1))
(when (re-search-forward allout-line-boundary-regexp nil 0)
(allout-prefix-data)
(and (allout-do-doublecheck)
(allout-aberrant-container-p))
(goto-char allout-recent-prefix-beginning)))
(defun allout-this-or-next-heading ()
"Position cursor on current or next heading."
(if (not (allout-goto-prefix-doublechecked)) (allout-next-heading)))
(defun allout-previous-heading ()
"Move to the prior (possibly invisible) heading line.
Return the location of the beginning of the heading, or nil if not found.
We skip anomolous low-level topics, a la `allout-aberrant-container-p'."
(if (bobp)
nil
(let ((start-point (point)))
(allout-goto-prefix)
(when (or (re-search-backward allout-line-boundary-regexp nil 0)
(looking-at allout-bob-regexp))
(goto-char (allout-prefix-data))
(if (and (allout-do-doublecheck)
(allout-aberrant-container-p))
(or (allout-previous-heading)
(and (goto-char start-point)
(allout-depth)
nil))
(point))))))
(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))
(pop overlays)))
got))
(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))
(defun allout-chart-subtree (&optional levels visible orig-depth prev-depth)
"Produce a location \"chart\" of subtopics of the containing topic.
Optional argument LEVELS specifies a depth limit (relative to start
depth) for the chart. Null LEVELS means no limit.
When optional argument VISIBLE is non-nil, the chart includes
only the visible subelements of the charted subjects.
The remaining optional args are for internal use by the function.
Point is left at the end of the subtree.
Charts are used to capture outline structure, so that outline-altering
routines need assess the structure only once, and then use the chart
for their elaborate manipulations.
The chart entries for the topics are in reverse order, so the
last topic is listed first. The entry for each topic consists of
an integer indicating the point at the beginning of the topic
prefix. Charts for offspring consists of a list containing,
recursively, the charts for the respective subtopics. The chart
for a topics' offspring precedes the entry for the topic itself.
The other function parameters are for internal recursion, and should
not be specified by external callers. ORIG-DEPTH is depth of topic at
starting point, and PREV-DEPTH is depth of prior topic."
(let ((original (not orig-depth)) chart curr-depth)
(if original (progn (setq orig-depth (allout-depth))
(or prev-depth (setq prev-depth (1+ orig-depth)))
(if visible
(allout-next-visible-heading 1)
(allout-next-heading))))
(while (and (not (eobp))
(< orig-depth (setq curr-depth allout-recent-depth))
(cond ((= prev-depth curr-depth)
(setq chart (cons allout-recent-prefix-beginning chart))
(if (and levels (<= levels 1))
(or (allout-next-sibling curr-depth)
(while (and (<= curr-depth
allout-recent-depth)
(if visible
(allout-next-visible-heading 1)
(allout-next-heading)))))
(if visible
(allout-next-visible-heading 1)
(allout-next-heading))))
((and (< prev-depth curr-depth)
(or (not levels)
(> levels 0)))
(setq chart
(cons (allout-chart-subtree (and levels
(1- levels))
visible
orig-depth
curr-depth)
chart))
)
)))
(if original (progn (and (not (eobp)) (forward-char -1))
(and (= (preceding-char) ?\n)
(= (aref (buffer-substring (max 1 (- (point) 3))
(point))
1)
?\n)
(forward-char -1))
(setq allout-recent-end-of-subtree (point))))
chart ))
(defun allout-chart-siblings (&optional start end)
"Produce a list of locations of this and succeeding sibling topics.
Effectively a top-level chart of siblings. See `allout-chart-subtree'
for an explanation of charts."
(save-excursion
(when (allout-goto-prefix-doublechecked)
(let ((chart (list (point))))
(while (allout-next-sibling)
(setq chart (cons (point) chart)))
(if chart (setq chart (nreverse chart)))))))
(defun allout-chart-to-reveal (chart depth)
"Return a flat list of hidden points in subtree CHART, up to DEPTH.
If DEPTH is nil, include hidden points at any depth.
Note that point can be left at any of the points on chart, or at the
start point."
(let (result here)
(while (and (or (null depth) (> depth 0))
chart)
(setq here (car chart))
(if (listp here)
(let ((further (allout-chart-to-reveal here (if (null depth)
depth
(1- depth)))))
(if further (setq result (append further result)))
(setq chart (cdr chart)))
(goto-char here)
(if (allout-hidden-p)
(setq result (cons here result)))
(setq chart (cdr chart))))
result))
(defun allout-goto-prefix ()
"Put point at beginning of immediately containing outline topic.
Goes to most immediate subsequent topic if none immediately containing.
Not sensitive to topic visibility.
Returns the point at the beginning of the prefix, or nil if none."
(let (done)
(while (and (not done)
(search-backward "\n" nil 1))
(forward-char 1)
(if (looking-at allout-regexp)
(setq done (allout-prefix-data))
(forward-char -1)))
(if (bobp)
(cond ((looking-at allout-regexp)
(allout-prefix-data))
((allout-next-heading))
(done))
done)))
(defun allout-goto-prefix-doublechecked ()
"Put point at beginning of immediately containing outline topic.
Like `allout-goto-prefix', but shallow topics (according to
`allout-doublecheck-at-and-shallower') are checked and
disqualified for child containment discontinuity, according to
`allout-aberrant-container-p'."
(if (allout-goto-prefix)
(if (and (allout-do-doublecheck)
(allout-aberrant-container-p))
(allout-previous-heading)
(point))))
(defun allout-end-of-prefix (&optional ignore-decorations)
"Position cursor at beginning of header text.
If optional IGNORE-DECORATIONS is non-nil, put just after bullet,
otherwise skip white space between bullet and ensuing text."
(if (not (allout-goto-prefix-doublechecked))
nil
(goto-char allout-recent-prefix-end)
(if ignore-decorations
t
(while (looking-at "[0-9]") (forward-char 1))
(if (and (not (eolp)) (looking-at "\\s-")) (forward-char 1)))
(allout-current-depth)))
(defun allout-current-bullet-pos ()
"Return position of current (visible) topic's bullet."
(if (not (allout-current-depth))
nil
(1- allout-recent-prefix-end)))
(defun allout-back-to-current-heading ()
"Move to heading line of current topic, or beginning if not in a topic.
If interactive, we position at the end of the prefix.
Return value of resulting point, unless we started outside
of (before any) topics, in which case we return nil."
(allout-beginning-of-current-line)
(let ((bol-point (point)))
(if (allout-goto-prefix-doublechecked)
(if (<= (point) bol-point)
(if (interactive-p)
(allout-end-of-prefix)
(point))
(goto-char (point-min))
nil))))
(defalias 'allout-back-to-heading 'allout-back-to-current-heading)
(defun allout-pre-next-prefix ()
"Skip forward to just before the next heading line.
Returns that character position."
(if (allout-next-heading)
(goto-char (1- allout-recent-prefix-beginning))))
(defun allout-end-of-subtree (&optional current include-trailing-blank)
"Put point at the end of the last leaf in the containing 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")
(if current
(allout-back-to-current-heading)
(allout-goto-prefix-doublechecked))
(let ((level allout-recent-depth))
(allout-next-heading)
(while (and (not (eobp))
(> allout-recent-depth level))
(allout-next-heading))
(if (eobp)
(allout-end-of-entry)
(forward-char -1))
(if (and (not include-trailing-blank) (= ?\n (preceding-char)))
(forward-char -1))
(setq allout-recent-end-of-subtree (point))))
(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 include-trailing-blank))
(defun allout-beginning-of-current-entry ()
"When not already there, position point at beginning of current topic header.
If already there, move cursor to bullet for hot-spot operation.
\(See `allout-mode' doc string for details of hot-spot operation.)"
(interactive)
(let ((start-point (point)))
(move-beginning-of-line 1)
(if (< 0 (allout-current-depth))
(goto-char allout-recent-prefix-end)
(goto-char (point-min)))
(allout-end-of-prefix)
(if (and (interactive-p)
(= (point) start-point))
(goto-char (allout-current-bullet-pos)))))
(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)
(allout-pre-next-prefix)
(if (and (not inclusive) (not (bobp)) (= ?\n (preceding-char)))
(forward-char -1))
(point))
(defun allout-end-of-current-heading ()
(interactive)
(allout-beginning-of-current-entry)
(search-forward "\n" nil t)
(forward-char -1))
(defalias 'allout-end-of-heading 'allout-end-of-current-heading)
(defun allout-get-body-text ()
"Return the unmangled body text of the topic immediately containing point."
(save-excursion
(allout-end-of-prefix)
(if (not (search-forward "\n" nil t))
nil
(backward-char 1)
(let ((pre-body (point)))
(if (not pre-body)
nil
(allout-end-of-entry t)
(if (not (= pre-body (point)))
(buffer-substring-no-properties (1+ pre-body) (point))))
)
)
)
)
(defun allout-ascend-to-depth (depth)
"Ascend to depth DEPTH, returning depth if successful, nil if not."
(if (and (> depth 0)(<= depth (allout-depth)))
(let (last-ascended)
(while (and (< depth allout-recent-depth)
(setq last-ascended (allout-ascend))))
(goto-char allout-recent-prefix-beginning)
(if (interactive-p) (allout-end-of-prefix))
(and last-ascended allout-recent-depth))))
(defun allout-ascend (&optional dont-move-if-unsuccessful)
"Ascend one level, returning resulting depth if successful, nil if not.
Point is left at the beginning of the level whether or not
successful, unless optional DONT-MOVE-IF-UNSUCCESSFUL is set, in
which case point is returned to its original starting location."
(if dont-move-if-unsuccessful
(setq dont-move-if-unsuccessful (point)))
(prog1
(if (allout-beginning-of-level)
(let ((bolevel (point))
(bolevel-depth allout-recent-depth))
(allout-previous-heading)
(cond ((< allout-recent-depth bolevel-depth)
allout-recent-depth)
((= allout-recent-depth bolevel-depth)
(if dont-move-if-unsuccessful
(goto-char dont-move-if-unsuccessful))
(allout-depth)
nil)
(t
(goto-char bolevel)
(allout-depth)
nil))))
(if (interactive-p) (allout-end-of-prefix))))
(defun allout-descend-to-depth (depth)
"Descend to depth DEPTH within current topic.
Returning depth if successful, nil if not."
(let ((start-point (point))
(start-depth (allout-depth)))
(while
(and (> (allout-depth) 0)
(not (= depth allout-recent-depth)) (allout-next-heading) (< start-depth allout-recent-depth))) (if (and (> (allout-depth) 0)
(= allout-recent-depth depth))
depth
(goto-char start-point)
nil))
)
(defun allout-up-current-level (arg)
"Move out ARG levels from current visible topic."
(interactive "p")
(let ((start-point (point)))
(allout-back-to-current-heading)
(if (not (allout-ascend))
(progn (goto-char start-point)
(error "Can't ascend past outermost level"))
(if (interactive-p) (allout-end-of-prefix))
allout-recent-prefix-beginning)))
(defun allout-next-sibling (&optional depth backward)
"Like `allout-forward-current-level', but respects invisible topics.
Traverse at optional DEPTH, or current depth if none specified.
Go backward if optional arg BACKWARD is non-nil.
Return the start point of the new topic if successful, nil otherwise."
(if (if backward (bobp) (eobp))
nil
(let ((target-depth (or depth (allout-depth)))
(start-point (point))
(start-prefix-beginning allout-recent-prefix-beginning)
(count 0)
leaping
last-depth)
(while (and
(not leaping)
(not (if backward (bobp) (eobp)))
(if backward (allout-previous-heading) (allout-next-heading))
(> (setq last-depth allout-recent-depth) target-depth))
(setq count (1+ count))
(if (> count 7) (setq leaping t)))
(cond (leaping
(or (allout-next-sibling-leap target-depth backward)
(progn
(goto-char start-point)
(if depth (allout-depth) target-depth)
nil)))
((and (not (eobp))
(and (> (or last-depth (allout-depth)) 0)
(= allout-recent-depth target-depth))
(not (= start-prefix-beginning
allout-recent-prefix-beginning)))
allout-recent-prefix-beginning)
(t
(goto-char start-point)
(if depth (allout-depth) target-depth)
nil)))))
(defun allout-next-sibling-leap (&optional depth backward)
"Like `allout-next-sibling', but by direct search for topic at depth.
Traverse at optional DEPTH, or current depth if none specified.
Go backward if optional arg BACKWARD is non-nil.
Return the start point of the new topic if successful, nil otherwise.
Costs more than regular `allout-next-sibling' for short traversals:
- we have to check the prior (next, if travelling backwards)
item to confirm connectivity with the prior topic, and
- if confirmed, we have to reestablish the allout-recent-* settings with
some extra navigation
- if confirmation fails, we have to do more work to recover
It is an increasingly big win when there are many intervening
offspring before the next sibling, however, so
`allout-next-sibling' resorts to this if it finds itself in that
situation."
(if (if backward (bobp) (eobp))
nil
(let* ((start-point (point))
(target-depth (or depth (allout-depth)))
(search-whitespace-regexp nil)
(depth-biased (- target-depth 2))
(expression (if (<= target-depth 1)
allout-depth-one-regexp
(format allout-depth-specific-regexp
depth-biased depth-biased)))
found
done)
(while (not done)
(setq found (if backward
(re-search-backward expression nil 'to-limit)
(forward-char 1)
(re-search-forward expression nil 'to-limit)))
(if (and found (allout-aberrant-container-p))
(setq found nil))
(setq done (or found (if backward (bobp) (eobp)))))
(if (not found)
(progn (goto-char start-point)
nil)
(if backward (allout-next-heading) (allout-previous-heading))
(if (< allout-recent-depth target-depth)
(progn
(goto-char start-point)
(allout-depth)
nil)
(goto-char found)
(allout-goto-prefix))))))
(defun allout-previous-sibling (&optional depth backward)
"Like `allout-forward-current-level' backwards, respecting invisible topics.
Optional DEPTH specifies depth to traverse, default current depth.
Optional BACKWARD reverses direction.
Return depth if successful, nil otherwise."
(allout-next-sibling depth (not backward))
)
(defun allout-snug-back ()
"Position cursor at end of previous topic.
Presumes point is at the start of a topic prefix."
(if (or (bobp) (eobp))
nil
(forward-char -1))
(if (or (bobp) (not (= ?\n (preceding-char))))
nil
(forward-char -1))
(point))
(defun allout-beginning-of-level ()
"Go back to the first sibling at this level, visible or not."
(allout-end-of-level 'backward))
(defun allout-end-of-level (&optional backward)
"Go to the last sibling at this level, visible or not."
(let ((depth (allout-depth)))
(while (allout-previous-sibling depth nil))
(prog1 allout-recent-depth
(if (interactive-p) (allout-end-of-prefix)))))
(defun allout-next-visible-heading (arg)
"Move to the next ARG'th visible heading line, backward if arg is negative.
Move to buffer limit in indicated direction if headings are exhausted."
(interactive "p")
(let* ((inhibit-field-text-motion t)
(backward (if (< arg 0) (setq arg (* -1 arg))))
(step (if backward -1 1))
prev got)
(while (> arg 0)
(while (and
(not (if backward (bobp)(eobp)))
(prog1 (condition-case nil (or (line-move step) t)
(error nil))
(allout-beginning-of-current-line))
(if (not (looking-at allout-regexp))
t
(allout-prefix-data)
(if (and (allout-do-doublecheck)
(allout-aberrant-container-p))
t
(setq got allout-recent-prefix-beginning)
nil))))
(if got (setq prev got))
(setq arg (1- arg)))
(cond (got (allout-end-of-prefix))
(prev (goto-char prev)
(allout-end-of-prefix))
((not backward) (end-of-line) nil))))
(defun allout-previous-visible-heading (arg)
"Move to the previous heading line.
With argument, repeats or can move forward if negative.
A heading line is one that starts with a `*' (or that `allout-regexp'
matches)."
(interactive "p")
(prog1 (allout-next-visible-heading (- arg))
(if (interactive-p) (allout-end-of-prefix))))
(defun allout-forward-current-level (arg)
"Position point at the next heading of the same level.
Takes optional repeat-count, goes backward if count is negative.
Returns resulting position, else nil if none found."
(interactive "p")
(let ((start-depth (allout-current-depth))
(start-arg arg)
(backward (> 0 arg)))
(if (= 0 start-depth)
(error "No siblings, not in a topic..."))
(if backward (setq arg (* -1 arg)))
(allout-back-to-current-heading)
(while (and (not (zerop arg))
(if backward
(allout-previous-sibling)
(allout-next-sibling)))
(setq arg (1- arg)))
(if (not (interactive-p))
nil
(allout-end-of-prefix)
(if (not (zerop arg))
(error "Hit %s level %d topic, traversed %d of %d requested"
(if backward "first" "last")
allout-recent-depth
(- (abs start-arg) arg)
(abs start-arg))))))
(defun allout-backward-current-level (arg)
"Inverse of `allout-forward-current-level'."
(interactive "p")
(if (interactive-p)
(let ((current-prefix-arg (* -1 arg)))
(call-interactively 'allout-forward-current-level))
(allout-forward-current-level (* -1 arg))))
(defvar allout-post-goto-bullet nil
"Outline internal var, for `allout-pre-command-business' hot-spot operation.
When set, tells post-processing to reposition on topic bullet, and
then unset it. Set by `allout-pre-command-business' when implementing
hot-spot operation, where literal characters typed over a topic bullet
are mapped to the command of the corresponding control-key on the
`allout-mode-map'.")
(make-variable-buffer-local 'allout-post-goto-bullet)
(defvar allout-command-counter 0
"Counter that monotonically increases in allout-mode buffers.
Set by `allout-pre-command-business', to support allout addons in
coordinating with allout activity.")
(make-variable-buffer-local 'allout-command-counter)
(defun allout-post-command-business ()
"Outline `post-command-hook' function.
- Implement (and clear) `allout-post-goto-bullet', for hot-spot
outline commands.
- Decrypt topic currently being edited if it was encrypted for a save."
(if (not (allout-mode-p)) nil
(if (and (boundp 'allout-after-save-decrypt)
allout-after-save-decrypt)
(allout-after-saves-handler))
(if (and allout-post-goto-bullet
(allout-current-bullet-pos))
(progn (goto-char (allout-current-bullet-pos))
(setq allout-post-goto-bullet nil)))
))
(defun allout-pre-command-business ()
"Outline `pre-command-hook' function for outline buffers.
Among other things, implements special behavior when the cursor is on the
topic bullet character.
When the cursor is on the bullet character, self-insert characters are
reinterpreted as the corresponding control-character in the
`allout-mode-map'. The `allout-mode' `post-command-hook' insures that
the cursor which has moved as a result of such reinterpretation is
positioned on the bullet character of the destination topic.
The upshot is that you can get easy, single (ie, unmodified) key
outline maneuvering operations by positioning the cursor on the bullet
char. When in this mode you can use regular cursor-positioning
command/keystrokes to relocate the cursor off of a bullet character to
return to regular interpretation of self-insert characters."
(if (not (allout-mode-p))
nil
(setq allout-command-counter (1+ allout-command-counter))
(if (and (eq this-command 'self-insert-command)
(eq (point)(allout-current-bullet-pos)))
(allout-hotspot-key-handler))))
(defun allout-hotspot-key-handler ()
"Catchall handling of key bindings in hot-spots.
Translates unmodified keystrokes to corresponding allout commands, when
they would qualify if prefixed with the allout-command-prefix, and sets
this-command accordingly.
Returns the qualifying command, if any, else nil."
(interactive)
(let* ((key-string (if (numberp last-command-char)
(char-to-string last-command-char)))
(key-num (cond ((numberp last-command-char) last-command-char)
((and (fboundp 'characterp)
(apply 'characterp (list last-command-char)))
(apply 'char-to-int (list last-command-char)))
(t 0)))
mapped-binding)
(if (zerop key-num)
nil
(if (and
(<= 33 key-num)
(setq mapped-binding
(or (and (assoc key-string allout-keybindings-list)
(cadr (assoc key-string allout-keybindings-list)))
(key-binding (concat allout-command-prefix
(char-to-string
(if (and (<= 97 key-num) (>= 122 key-num)) (- key-num 96) key-num)))
t))))
(setq allout-post-goto-bullet t)
(setq mapped-binding (key-binding (char-to-string key-num))))
(while (keymapp mapped-binding)
(setq mapped-binding
(lookup-key mapped-binding (vector (read-char)))))
(if mapped-binding
(setq this-command mapped-binding)))))
(defun allout-find-file-hook ()
"Activate `allout-mode' on non-nil `allout-auto-activation', `allout-layout'.
See `allout-init' for setup instructions."
(if (and allout-auto-activation
(not (allout-mode-p))
allout-layout)
(allout-mode t)))
(defun allout-solicit-alternate-bullet (depth &optional current-bullet)
"Prompt for and return a bullet char as an alternative to the current one.
Offer one suitable for current depth DEPTH as default."
(let* ((default-bullet (or (and (stringp current-bullet) current-bullet)
(allout-bullet-for-depth depth)))
(sans-escapes (regexp-sans-escapes allout-bullets-string))
choice)
(save-excursion
(goto-char (allout-current-bullet-pos))
(setq choice (solicit-char-in-string
(format "Select bullet: %s ('%s' default): "
sans-escapes
(substring-no-properties default-bullet))
sans-escapes
t)))
(message "")
(if (string= choice "") default-bullet choice))
)
(defun allout-distinctive-bullet (bullet)
"True if BULLET is one of those on `allout-distinctive-bullets-string'."
(string-match (regexp-quote bullet) allout-distinctive-bullets-string))
(defun allout-numbered-type-prefix (&optional prefix)
"True if current header prefix bullet is numbered bullet."
(and allout-numbered-bullet
(string= allout-numbered-bullet
(if prefix
(allout-get-prefix-bullet prefix)
(allout-get-bullet)))))
(defun allout-encrypted-type-prefix (&optional prefix)
"True if current header prefix bullet is for an encrypted entry (body)."
(and allout-topic-encryption-bullet
(string= allout-topic-encryption-bullet
(if prefix
(allout-get-prefix-bullet prefix)
(allout-get-bullet)))))
(defun allout-bullet-for-depth (&optional depth)
"Return outline topic bullet suited to optional DEPTH, or current depth."
(if allout-stylish-prefixes
(char-to-string (aref allout-plain-bullets-string
(% (max 0 (- depth 2))
allout-plain-bullets-string-len)))
allout-primary-bullet)
)
(defun allout-make-topic-prefix (&optional prior-bullet
new
depth
solicit
number-control
index)
"Generate a topic prefix suitable for optional arg DEPTH, or current depth.
All the arguments are optional.
PRIOR-BULLET indicates the bullet of the prefix being changed, or
nil if none. This bullet may be preserved (other options
notwithstanding) if it is on the `allout-distinctive-bullets-string',
for instance.
Second arg NEW indicates that a new topic is being opened after the
topic at point, if non-nil. Default bullet for new topics, eg, may
be set (contingent to other args) to numbered bullets if previous
sibling is one. The implication otherwise is that the current topic
is being adjusted - shifted or rebulleted - and we don't consider
bullet or previous sibling.
Third arg DEPTH forces the topic prefix to that depth, regardless of
the current topics' depth.
If SOLICIT is non-nil, then the choice of bullet is solicited from
user. If it's a character, then that character is offered as the
default, otherwise the one suited to the context (according to
distinction or depth) is offered. (This overrides other options,
including, eg, a distinctive PRIOR-BULLET.) If non-nil, then the
context-specific bullet is used.
Fifth arg, NUMBER-CONTROL, matters only if `allout-numbered-bullet'
is non-nil *and* soliciting was not explicitly invoked. Then
NUMBER-CONTROL non-nil forces prefix to either numbered or
denumbered format, depending on the value of the sixth arg, INDEX.
\(Note that NUMBER-CONTROL does *not* apply to level 1 topics. Sorry...)
If NUMBER-CONTROL is non-nil and sixth arg INDEX is non-nil then
the prefix of the topic is forced to be numbered. Non-nil
NUMBER-CONTROL and nil INDEX forces non-numbered format on the
bullet. Non-nil NUMBER-CONTROL and non-nil, non-number INDEX means
that the index for the numbered prefix will be derived, by counting
siblings back to start of level. If INDEX is a number, then that
number is used as the index for the numbered prefix (allowing, eg,
sequential renumbering to not require this function counting back the
index for each successive sibling)."
(let* (body
numbering
denumbering
(depth (or depth (allout-depth)))
(header-lead allout-header-prefix)
(bullet-char
(cond
((<= depth 1) (setq header-lead "") allout-primary-bullet)
(allout-old-style-prefixes
(setq body (make-string depth
(string-to-char allout-primary-bullet)))
(setq header-lead "")
"")
((progn (setq body (make-string (- depth 2) ?\ ))
solicit)
(let* ((got (allout-solicit-alternate-bullet depth solicit)))
(setq numbering (and allout-numbered-bullet
(not (and number-control (not index)))
(string= got allout-numbered-bullet)))
got))
((and allout-numbered-bullet number-control)
(if (setq numbering (not (setq denumbering (not index))))
allout-numbered-bullet
(if (and prior-bullet
(not (string= allout-numbered-bullet
prior-bullet)))
prior-bullet
(allout-bullet-for-depth depth))))
((and new (<= depth (allout-depth))
allout-numbered-bullet (not denumbering)
(let ((sibling-bullet
(save-excursion
(or (>= depth (allout-depth))
(allout-ascend-to-depth depth))
(allout-get-bullet))))
(if (and sibling-bullet
(string= allout-numbered-bullet sibling-bullet))
(setq numbering sibling-bullet)))))
((and prior-bullet
(allout-distinctive-bullet prior-bullet)
(or (not (and allout-numbered-bullet
(string= prior-bullet allout-numbered-bullet)))
(setq numbering (not denumbering)))
prior-bullet))
((allout-bullet-for-depth depth)))))
(concat header-lead
body
bullet-char
(if numbering
(format "%d" (cond ((and index (numberp index)) index)
(new (1+ (allout-sibling-index depth)))
((allout-sibling-index))))))
)
)
(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 completely empty - lacking even
whitespace - in which case open is done on the current line.
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:
- Creation of new topics is with respect to the visible topic
containing the cursor, regardless of intervening concealed ones.
- New headers are generally created after/before the body of a
topic. However, they are created right at cursor location if the
cursor is on a blank line, even if that breaks the current topic
body. This is intentional, to provide a simple means for
deliberately dividing topic bodies.
- Double spacing of topic lists is preserved. Also, the first
level two topic is created double-spaced (and so would be
subsequent siblings, if that's left intact). Otherwise,
single-spacing is used.
- Creation of sibling or nested topics is with respect to the topic
you're starting from, even when creating backwards. This way you
can easily create a sibling in front of the current topic without
having to go to its preceding sibling, and then open forward
from there."
(allout-beginning-of-current-line)
(let* ((inhibit-field-text-motion t)
(depth (+ (allout-current-depth) relative-depth))
(opening-on-blank (if (looking-at "^\$")
(not (setq before nil))))
opening-numbered
ref-depth
ref-bullet
(ref-topic (save-excursion
(cond ((< relative-depth 0)
(allout-ascend-to-depth depth))
((>= relative-depth 1) nil)
(t (allout-back-to-current-heading)))
(setq ref-depth allout-recent-depth)
(setq ref-bullet
(if (> allout-recent-prefix-end 1)
(allout-recent-bullet)
""))
(setq opening-numbered
(save-excursion
(and allout-numbered-bullet
(or (<= relative-depth 0)
(allout-descend-to-depth depth))
(if (allout-numbered-type-prefix)
allout-numbered-bullet))))
(point)))
dbl-space
doing-beginning
start end)
(if (not opening-on-blank)
(progn
(goto-char ref-topic)
(setq dbl-space (or (and (<= relative-depth 0) (save-excursion
(or (> 0 (forward-line -1))
(looking-at "^\\s-*$")
(bobp)))
(save-excursion
(allout-end-of-current-subtree)
(looking-at "\n\n")))
(and (= ref-depth 1)
(or before
(= depth 1)
(save-excursion
(not (allout-pre-next-prefix)))))))
(if (and before (>= relative-depth 0))
(progn (allout-back-to-current-heading)
(setq doing-beginning (bobp))
(if (not (bobp))
(allout-previous-heading)))
(if (and before (bobp))
(open-line 1)))
(if (<= relative-depth 0)
(if doing-beginning
(if (not dbl-space)
(open-line 1)
(open-line 2))
(if before
(progn (end-of-line)
(allout-pre-next-prefix)
(while (and (= ?\n (following-char))
(save-excursion
(forward-char 1)
(allout-hidden-p)))
(forward-char 1))
(if (not (looking-at "^$"))
(open-line 1)))
(allout-end-of-current-subtree)
(if (looking-at "\n\n") (forward-char 1))))
(allout-end-of-entry)
(if (eobp)
(newline 1)
(line-move 1))
(allout-beginning-of-current-line)
(backward-char 1)
(if (bolp)
(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)
(when (> allout-recent-depth ref-depth)
(forward-line -1)
(looking-at "^\\s-*$")))
(progn (forward-line 1)
(open-line 1)
(forward-line 1)))
(allout-end-of-current-line))
(if (not (bobp))
(progn (if (and (not (> depth ref-depth))
(not before))
(open-line 1)
(if (and (not dbl-space) (> depth ref-depth))
(newline 1)
(if dbl-space
(open-line 1)
(if (not before)
(newline 1)))))
(if (and dbl-space (not (> relative-depth 0)))
(newline 1))
(if (and (not (eobp))
(or (not (bolp))
(and (not (bobp))
(save-excursion
(forward-char -1)
(allout-hidden-p)))))
(forward-char 1))))
))
(setq start (point))
(insert (concat (allout-make-topic-prefix opening-numbered t depth)
" "))
(setq end (1+ (point)))
(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)
(run-hook-with-args 'allout-structure-added-hook start end)
)
)
(defun allout-open-subtopic (arg)
"Open new topic header at deeper level than the current one.
Negative universal arg means to open deeper, but place the new topic
prior to the current one."
(interactive "p")
(allout-open-topic 1 (> 0 arg) (< 1 arg)))
(defun allout-open-sibtopic (arg)
"Open new topic header at same level as the current one.
Positive universal arg means to use the bullet of the prior sibling.
Negative universal arg means to place the new topic prior to the current
one."
(interactive "p")
(allout-open-topic 0 (> 0 arg) (not (= 1 arg))))
(defun allout-open-supertopic (arg)
"Open new topic header at shallower level than the current one.
Negative universal arg means to open shallower, but place the new
topic prior to the current one."
(interactive "p")
(allout-open-topic -1 (> 0 arg) (< 1 arg)))
(defvar allout-former-auto-filler nil
"Name of modal fill function being wrapped by `allout-auto-fill'.")
(defun allout-auto-fill ()
"`allout-mode' autofill function.
Maintains outline hanging topic indentation if
`allout-use-hanging-indents' is set."
(when (not allout-inhibit-auto-fill)
(let ((fill-prefix (if allout-use-hanging-indents
(save-excursion
(beginning-of-line)
(if (looking-at allout-regexp)
(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)
(funcall use-auto-fill-function)))))
(defun allout-reindent-body (old-depth new-depth &optional number)
"Reindent body lines which were indented at OLD-DEPTH to NEW-DEPTH.
Optional arg NUMBER indicates numbering is being added, and it must
be accommodated.
Note that refill of indented paragraphs is not done."
(save-excursion
(allout-end-of-prefix)
(let* ((new-margin (current-column))
excess old-indent-begin old-indent-end
(old-margin (+ old-depth (- new-margin new-depth))))
(allout-unprotected
(save-match-data
(while
(and (re-search-forward "\n\\(\\s-*\\)"
nil
t)
(setq old-indent-begin (match-beginning 1)
old-indent-end (match-end 1))
(not (looking-at allout-regexp)))
(if (> 0 (setq excess (- (- old-indent-end old-indent-begin)
old-margin)))
nil
(delete-region old-indent-begin old-indent-end)
(indent-to (+ new-margin excess (current-column))))))))))
(defun allout-rebullet-current-heading (arg)
"Solicit new bullet for current visible heading."
(interactive "p")
(let ((initial-col (current-column))
(on-bullet (eq (point)(allout-current-bullet-pos)))
from to
(backwards (if (< arg 0)
(setq arg (* arg -1)))))
(while (> arg 0)
(save-excursion (allout-back-to-current-heading)
(allout-end-of-prefix)
(setq from allout-recent-prefix-beginning
to allout-recent-prefix-end)
(allout-rebullet-heading t nil nil nil t) (run-hook-with-args 'allout-exposure-change-hook
from to t))
(setq arg (1- arg))
(if (<= arg 0)
nil
(setq initial-col nil) (if (not backwards)
(allout-next-visible-heading 1)
(allout-goto-prefix-doublechecked)
(allout-next-visible-heading -1))))
(message "Done.")
(cond (on-bullet (goto-char (allout-current-bullet-pos)))
(initial-col (move-to-column initial-col)))))
(defun allout-rebullet-heading (&optional solicit
new-depth
number-control
index
do-successors)
"Adjust bullet of current topic prefix.
All args are optional.
If SOLICIT is non-nil, then the choice of bullet is solicited from
user. If it's a character, then that character is offered as the
default, otherwise the one suited to the context (according to
distinction or depth) is offered. If non-nil, then the
context-specific bullet is just used.
Second arg DEPTH forces the topic prefix to that depth, regardless
of the topic's current depth.
Third arg NUMBER-CONTROL can force the prefix to or away from
numbered form. It has effect only if `allout-numbered-bullet' is
non-nil and soliciting was not explicitly invoked (via first arg).
Its effect, numbering or denumbering, then depends on the setting
of the forth arg, INDEX.
If NUMBER-CONTROL is non-nil and forth arg INDEX is nil, then the
prefix of the topic is forced to be non-numbered. Null index and
non-nil NUMBER-CONTROL forces denumbering. Non-nil INDEX (and
non-nil NUMBER-CONTROL) forces a numbered-prefix form. If non-nil
INDEX is a number, then that number is used for the numbered
prefix. Non-nil and non-number means that the index for the
numbered prefix will be derived by allout-make-topic-prefix.
Fifth arg DO-SUCCESSORS t means re-resolve count on succeeding
siblings.
Cf vars `allout-stylish-prefixes', `allout-old-style-prefixes',
and `allout-numbered-bullet', which all affect the behavior of
this function."
(let* ((current-depth (allout-depth))
(new-depth (or new-depth current-depth))
(mb allout-recent-prefix-beginning)
(me allout-recent-prefix-end)
(current-bullet (buffer-substring-no-properties (- me 1) me))
(has-annotation (get-text-property mb 'allout-was-hidden))
(new-prefix (allout-make-topic-prefix current-bullet
nil
new-depth
solicit
number-control
index)))
(if (and (= current-depth new-depth)
(string= current-bullet
(substring new-prefix (1- (length new-prefix)))))
t
(allout-unprotected (delete-region mb me))
(goto-char mb)
(if (and allout-numbered-bullet
(string= allout-numbered-bullet current-bullet)
(looking-at "[0-9]+"))
(allout-unprotected
(delete-region (match-beginning 0)(match-end 0))))
(if has-annotation
(put-text-property 0 (length new-prefix) 'allout-was-hidden t
new-prefix))
(allout-unprotected (insert new-prefix))
(if (and allout-reindent-bodies
(not (= new-depth current-depth))
(not (allout-encrypted-topic-p)))
(allout-reindent-body current-depth new-depth))
(if do-successors
(save-excursion
(while (allout-next-sibling new-depth nil)
(setq index
(cond ((numberp index) (1+ index))
((not number-control) (allout-sibling-index))))
(if (allout-numbered-type-prefix)
(allout-rebullet-heading nil new-depth number-control index nil))))) ) ) ) (defun allout-rebullet-topic (arg &optional sans-offspring)
"Rebullet the visible topic containing point and all contained subtopics.
Descends into invisible as well as visible topics, however.
When optional sans-offspring is non-nil, subtopics are not
shifted. (Shifting a topic outwards without shifting its
offspring is disallowed, since this would create a \"containment
discontinuity\", where the depth difference between a topic and
its immediate offspring is greater than one.)
With repeat count, shift topic depth by that amount."
(interactive "P")
(let ((start-col (current-column)))
(save-excursion
(cond ((null arg) (setq arg 0))
((listp arg) (setq arg (car arg))))
(if (not (zerop arg)) (message "Shifting..."))
(allout-back-to-current-heading)
(if (<= (+ allout-recent-depth arg) 0)
(error "Attempt to shift topic below level 1"))
(allout-rebullet-topic-grunt arg nil nil nil nil sans-offspring)
(if (not (zerop arg)) (message "Shifting... done.")))
(move-to-column (max 0 (+ start-col arg)))))
(defun allout-rebullet-topic-grunt (&optional relative-depth
starting-depth
starting-point
index
do-successors
sans-offspring)
"Like `allout-rebullet-topic', but on nearest containing topic
\(visible or not).
See `allout-rebullet-heading' for rebulleting behavior.
All arguments are optional.
First arg RELATIVE-DEPTH means to shift the depth of the entire
topic that amount.
Several subsequent args are for internal recursive use by the function
itself: STARTING-DEPTH, STARTING-POINT, and INDEX.
Finally, if optional SANS-OFFSPRING is non-nil then the offspring
are not shifted. (Shifting a topic outwards without shifting
its offspring is disallowed, since this would create a
\"containment discontinuity\", where the depth difference between
a topic and its immediate offspring is greater than one..)"
(if (and sans-offspring
relative-depth
(< relative-depth 0))
(error (concat "Attempt to shift topic outwards without offspring,"
" would cause containment discontinuity.")))
(let* ((relative-depth (or relative-depth 0))
(new-depth (allout-depth))
(starting-depth (or starting-depth new-depth))
(on-starting-call (null starting-point))
(index (or index
(and (or (zerop relative-depth)
(not on-starting-call))
(allout-sibling-index))))
(starting-index index)
(moving-outwards (< 0 relative-depth))
(starting-point (or starting-point (point)))
(local-point (point)))
(and on-starting-call
moving-outwards
(> 0 (+ starting-depth relative-depth))
(error "Attempt to shift topic out beyond level 1"))
(cond ((= starting-depth new-depth)
(if (>= relative-depth 0)
(allout-rebullet-heading nil
(+ starting-depth relative-depth)
nil index
nil)) (when (not sans-offspring)
(setq index 0)
(allout-next-heading)
(while (and (not (eobp))
(< starting-depth (allout-depth)))
(setq index (1+ index))
(allout-rebullet-topic-grunt relative-depth
(1+ starting-depth)
starting-point
index)))
(when (< relative-depth 0)
(save-excursion
(goto-char local-point)
(allout-rebullet-heading nil (+ starting-depth relative-depth)
nil starting-index
nil))))
((< starting-depth new-depth)
(allout-rebullet-topic-grunt relative-depth
new-depth
starting-point
index
sans-offspring)))
(if on-starting-call
(progn
(if (or do-successors
(and (not (zerop relative-depth))
(or (= allout-recent-depth starting-depth)
(= allout-recent-depth (+ starting-depth
relative-depth)))))
(allout-rebullet-heading nil nil nil nil t))
(progn (goto-char starting-point)
(if (not (zerop relative-depth))
(allout-rebullet-heading nil nil nil nil t)))))
)
)
(defun allout-renumber-to-depth (&optional depth)
"Renumber siblings at current depth.
Affects superior topics if optional arg DEPTH is less than current depth.
Returns final depth."
(let ((ascender (allout-depth))
was-eobp)
(while (and (not (eobp))
(allout-depth)
(>= allout-recent-depth depth)
(>= ascender depth))
(while (and (not (setq was-eobp (eobp)))
(> allout-recent-depth ascender))
(allout-next-heading))
(setq ascender (1- allout-recent-depth))
(if (>= allout-recent-depth depth)
(allout-rebullet-heading nil nil nil nil t)) (if was-eobp (goto-char (point-max)))))
allout-recent-depth)
(defun allout-number-siblings (&optional denumber)
"Assign numbered topic prefix to this topic and its siblings.
With universal argument, denumber - assign default bullet to this
topic and its siblings.
With repeated universal argument (`^U^U'), solicit bullet for each
rebulleting each topic at this level."
(interactive "P")
(save-excursion
(allout-back-to-current-heading)
(allout-beginning-of-level)
(let ((depth allout-recent-depth)
(index (if (not denumber) 1))
(use-bullet (equal '(16) denumber))
(more t))
(while more
(allout-rebullet-heading use-bullet depth t index nil) (if index (setq index (1+ index)))
(setq more (allout-next-sibling depth nil))))))
(defun allout-shift-in (arg)
"Increase depth of current heading and any items collapsed within it.
With a negative argument, the item is shifted out using
`allout-shift-out', instead.
With an argument greater than one, shift-in the item but not its
offspring, making the item into a sibling of its former children,
and a child of sibling that formerly preceeded it.
You are not allowed to shift the first offspring of a topic
inwards, because that would yield a \"containment
discontinuity\", where the depth difference between a topic and
its immediate offspring is greater than one. The first topic in
the file can be adjusted to any positive depth, however."
(interactive "p")
(if (< arg 0)
(allout-shift-out (* arg -1))
(save-excursion
(allout-back-to-current-heading)
(if (not (bobp))
(let* ((current-depth allout-recent-depth)
(start-point (point))
(predecessor-depth (progn
(forward-char -1)
(allout-goto-prefix-doublechecked)
(if (< (point) start-point)
allout-recent-depth
0))))
(if (and (> predecessor-depth 0)
(> (1+ current-depth)
(1+ predecessor-depth)))
(error (concat "Disallowed shift deeper than"
" containing topic's children."))
(allout-back-to-current-heading)
(if (< allout-recent-depth (1+ current-depth))
(allout-show-children))))))
(let ((where (point)))
(allout-rebullet-topic 1 (and (> arg 1) 'sans-offspring))
(run-hook-with-args 'allout-structure-shifted-hook arg where))))
(defun allout-shift-out (arg)
"Decrease depth of current heading and any topics collapsed within it.
This will make the item a sibling of its former container.
With a negative argument, the item is shifted in using
`allout-shift-in', instead.
With an argument greater than one, shift-out the item's offspring
but not the item itself, making the former children siblings of
the item.
With an argument greater than 1, the item's offspring are shifted
out without shifting the item. This will make the immediate
subtopics into siblings of the item."
(interactive "p")
(if (< arg 0)
(allout-shift-in (* arg -1))
(save-excursion (if (allout-ascend)
(allout-show-children)))
(if (and (allout-current-topic-collapsed-p)
(save-excursion (allout-next-sibling)))
(allout-show-children))
(let ((where (and (allout-depth) allout-recent-prefix-beginning)))
(save-excursion
(if (> arg 1)
(let ((children-chart (allout-chart-subtree 1)))
(if (listp (car children-chart))
(setq children-chart (allout-flatten children-chart)))
(save-excursion
(dolist (child-point children-chart)
(goto-char child-point)
(allout-shift-out 1))))
(allout-rebullet-topic (* arg -1))))
(run-hook-with-args 'allout-structure-shifted-hook (* arg -1) where))))
(defun allout-kill-line (&optional arg)
"Kill line, adjusting subsequent lines suitably for outline mode."
(interactive "*P")
(if (or (not (allout-mode-p))
(not (bolp))
(not (looking-at allout-regexp)))
(kill-line arg)
(let* ((beg (point))
end
(beg-hidden (allout-hidden-p))
(end-hidden (save-excursion (allout-end-of-current-line)
(setq end (point))
(allout-hidden-p)))
(depth (allout-depth)))
(allout-annotate-hidden beg end)
(if (and (not beg-hidden) (not end-hidden))
(allout-unprotected (kill-line arg))
(kill-line arg))
(allout-deannotate-hidden beg end)
(if allout-numbered-bullet
(save-excursion (if (not (looking-at allout-regexp))
(allout-next-heading))
(allout-renumber-to-depth depth)))
(run-hook-with-args 'allout-structure-deleted-hook depth (point)))))
(defun allout-copy-line-as-kill ()
"Like allout-kill-topic, but save to kill ring instead of deleting."
(interactive)
(let ((buffer-read-only t))
(condition-case nil
(allout-kill-line)
(buffer-read-only nil))))
(defun allout-kill-topic ()
"Kill topic together with subtopics.
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.
Topic exposure is marked with text-properties, to be used by
allout-yank-processing for exposure recovery."
(interactive)
(let* ((inhibit-field-text-motion t)
(beg (prog1 (allout-back-to-current-heading) (beginning-of-line)))
end
(depth allout-recent-depth))
(allout-end-of-current-subtree)
(if (and (/= (current-column) 0) (not (eobp)))
(forward-char 1))
(if (not (eobp))
(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)))
(allout-annotate-hidden beg (setq end (point)))
(unwind-protect
(allout-unprotected (kill-region beg end))
(if buffer-read-only
(allout-deannotate-hidden beg end)))
(save-excursion
(allout-renumber-to-depth depth))
(run-hook-with-args 'allout-structure-deleted-hook depth (point))))
(defun allout-copy-topic-as-kill ()
"Like allout-kill-topic, but save to kill ring instead of deleting."
(interactive)
(let ((buffer-read-only t))
(condition-case nil
(allout-kill-topic)
(buffer-read-only (message "Topic copied...")))))
(defun allout-annotate-hidden (begin end)
"Qualify text with properties to indicate exposure status."
(let ((was-modified (buffer-modified-p))
(buffer-read-only nil))
(allout-deannotate-hidden begin end)
(save-excursion
(goto-char begin)
(let (done next prev overlay)
(while (not done)
(if (not (allout-hidden-p))
(setq next
(max (1+ (point))
(next-single-char-property-change (point)
'invisible
nil end))))
(if (or (not next) (eq prev next))
(setq done t)
(goto-char next)
(setq prev next)
(if (not (allout-hidden-p))
(setq done t)
(setq overlay (allout-get-invisibility-overlay))
(setq next (overlay-end overlay)
prev next)
(when next
(goto-char next)
(allout-unprotected
(let ((buffer-undo-list t))
(put-text-property (overlay-start overlay) next
'allout-was-hidden t)))))))))
(set-buffer-modified-p was-modified)))
(defun allout-deannotate-hidden (begin end)
"Remove allout hidden-text annotation between BEGIN and END."
(allout-unprotected
(let ((inhibit-read-only t)
(buffer-undo-list t))
)))
(defun allout-hide-by-annotation (begin end)
"Translate text properties indicating exposure status into actual exposure."
(save-excursion
(goto-char begin)
(let ((was-modified (buffer-modified-p))
done next prev)
(while (not done)
(if (not (get-text-property (point) 'allout-was-hidden))
(setq next (next-single-char-property-change (point)
'allout-was-hidden
nil end)))
(if (or (not next) (eq prev next))
(setq done t)
(goto-char next)
(setq prev next)
(if (not (get-text-property (point) 'allout-was-hidden))
(setq done t)
(setq next (next-single-char-property-change (point)
'allout-was-hidden
nil end))
(overlay-put (make-overlay prev next)
'category 'allout-exposure-category)
(allout-deannotate-hidden prev next)
(setq prev next)
(if next (goto-char next)))))
(set-buffer-modified-p was-modified))))
(defun allout-yank-processing (&optional arg)
"Incidental allout-specific business to be done just after text yanks.
Does depth adjustment of yanked topics, when:
1 the stuff being yanked starts with a valid outline header prefix, and
2 it is being yanked at the end of a line which consists of only a valid
topic prefix.
Also, adjusts numbering of subsequent siblings when appropriate.
Depth adjustment alters the depth of all the topics being yanked
the amount it takes to make the first topic have the depth of the
header into which it's being yanked.
The point is left in front of yanked, adjusted topics, rather than
at the end (and vice-versa with the mark). Non-adjusted yanks,
however, are left exactly like normal, non-allout-specific yanks."
(interactive "*P")
(if (< (allout-mark-marker t) (point))
(exchange-point-and-mark))
(let* ((subj-beg (point))
(into-bol (bolp))
(subj-end (allout-mark-marker t))
(resituate (and (let ((allout-inhibit-aberrance-doublecheck t))
(allout-e-o-prefix-p))
(looking-at allout-regexp)
(allout-prefix-data)))
(rectify-numbering (or resituate
(and into-bol (looking-at allout-regexp)))))
(if resituate
(let* ((inhibit-field-text-motion t)
(prefix-len (if (not (match-end 1))
1
(- (match-end 1) subj-beg)))
(subj-depth allout-recent-depth)
(prefix-bullet (allout-recent-bullet))
(adjust-to-depth
(save-excursion
(and (goto-char subj-end)
(eolp)
(goto-char subj-beg)
(and (looking-at allout-regexp)
(progn
(beginning-of-line)
(not (= (point) subj-beg)))
(looking-at allout-regexp)
(allout-prefix-data))
allout-recent-depth)))
(more t))
(setq rectify-numbering allout-numbered-bullet)
(if adjust-to-depth
(progn
(save-restriction
(narrow-to-region subj-beg subj-end)
(goto-char (point-max))
(if (looking-at "^$")
(allout-unprotected (delete-char -1)))
(while more
(allout-back-to-current-heading)
(while (allout-ascend t))
(save-excursion
(allout-unprotected
(allout-rebullet-topic-grunt (- adjust-to-depth
subj-depth)))
(allout-depth))
(if (setq more (not (bobp)))
(progn (widen)
(forward-char -1)
(narrow-to-region subj-beg (point))))))
(if (string-match (regexp-quote prefix-bullet)
allout-distinctive-bullets-string)
(progn
(beginning-of-line)
(allout-unprotected
(delete-region (point) subj-beg))
(set-marker (allout-mark-marker t) subj-end)
(goto-char subj-beg)
(allout-end-of-prefix))
(allout-unprotected
(progn
(delete-region (point) (+ (point)
prefix-len
(- adjust-to-depth
subj-depth)))
(while (looking-at "[0-9]") (delete-char 1))
(if (looking-at " ") (delete-char 1))))))
(exchange-point-and-mark))))
(if rectify-numbering
(progn
(save-excursion
(message "... reconciling numbers")
(goto-char subj-beg)
(if (allout-goto-prefix-doublechecked)
(allout-unprotected
(allout-rebullet-heading nil (allout-depth) nil nil t)))
(message ""))))
(if (or into-bol resituate)
(allout-hide-by-annotation (point) (allout-mark-marker t))
(allout-deannotate-hidden (allout-mark-marker t) (point)))
(if (not resituate)
(exchange-point-and-mark))
(run-hook-with-args 'allout-structure-added-hook subj-beg subj-end)))
(defun allout-yank (&optional arg)
"`allout-mode' yank, with depth and numbering adjustment of yanked topics.
Non-topic yanks work no differently than normal yanks.
If a topic is being yanked into a bare topic prefix, the depth of the
yanked topic is adjusted to the depth of the topic prefix.
1 we're yanking in an `allout-mode' buffer
2 the stuff being yanked starts with a valid outline header prefix, and
3 it is being yanked at the end of a line which consists of only a valid
topic prefix.
If these conditions hold then the depth of the yanked topics are all
adjusted the amount it takes to make the first one at the depth of the
header into which it's being yanked.
The point is left in front of yanked, adjusted topics, rather than
at the end (and vice-versa with the mark). Non-adjusted yanks,
however, (ones that don't qualify for adjustment) are handled
exactly like normal yanks.
Numbering of yanked topics, and the successive siblings at the depth
into which they're being yanked, is adjusted.
`allout-yank-pop' works with `allout-yank' just like normal `yank-pop'
works with normal `yank' in non-outline buffers."
(interactive "*P")
(setq this-command 'yank)
(allout-unprotected
(yank arg))
(if (allout-mode-p)
(allout-yank-processing)))
(defun allout-yank-pop (&optional arg)
"Yank-pop like `allout-yank' when popping to bare outline prefixes.
Adapts level of popped topics to level of fresh prefix.
Note - prefix changes to distinctive bullets will stick, if followed
by pops to non-distinctive yanks. Bug..."
(interactive "*p")
(setq this-command 'yank)
(yank-pop arg)
(if (allout-mode-p)
(allout-yank-processing)))
(defun allout-resolve-xref ()
"Pop to file associated with current heading, if it has an xref bullet.
\(Works according to setting of `allout-file-xref-bullet')."
(interactive)
(if (not allout-file-xref-bullet)
(error
"Outline cross references disabled - no `allout-file-xref-bullet'")
(if (not (string= (allout-current-bullet) allout-file-xref-bullet))
(error "Current heading lacks cross-reference bullet `%s'"
allout-file-xref-bullet)
(let ((inhibit-field-text-motion t)
file-name)
(save-excursion
(let* ((text-start allout-recent-prefix-end)
(heading-end (progn (end-of-line) (point))))
(goto-char text-start)
(setq file-name
(if (re-search-forward "\\s-\\(\\S-*\\)" heading-end t)
(buffer-substring (match-beginning 1) (match-end 1))))))
(setq file-name (expand-file-name file-name))
(if (or (file-exists-p file-name)
(if (file-writable-p file-name)
(y-or-n-p (format "%s not there, create one? "
file-name))
(error "%s not found and can't be created" file-name)))
(condition-case failure
(find-file-other-window file-name)
(error failure))
(error "%s not found" file-name))
)
)
)
)
(defun allout-flag-region (from to flag)
"Conceal text between FROM and TO if FLAG is non-nil, else reveal it.
Exposure-change hook `allout-exposure-change-hook' is run with the same
arguments as this function, after the exposure changes are made. (The old
`allout-view-change-hook' is being deprecated, and eventually will not be
invoked.)"
(remove-overlays from to 'category 'allout-exposure-category)
(when flag
(let ((o (make-overlay from to)))
(overlay-put o 'category 'allout-exposure-category)
(when (featurep 'xemacs)
(let ((props (symbol-plist 'allout-exposure-category)))
(while props
(overlay-put o (pop props) (pop props)))))))
(run-hooks 'allout-view-change-hook)
(run-hook-with-args 'allout-exposure-change-hook from to flag))
(defun allout-flag-current-subtree (flag)
"Conceal currently-visible topic's subtree if FLAG non-nil, else reveal it."
(save-excursion
(allout-back-to-current-heading)
(let ((inhibit-field-text-motion t))
(end-of-line))
(allout-flag-region (point)
(allout-end-of-current-subtree (not flag))
flag)))
(defun allout-show-entry ()
"Like `allout-show-current-entry', but reveals entries 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-show-offshoot' should be used after the peek to rectify
the exposure."
(interactive)
(save-excursion
(let (beg end)
(allout-goto-prefix-doublechecked)
(setq beg (if (allout-hidden-p) (1- (point)) (point)))
(setq end (allout-pre-next-prefix))
(allout-flag-region beg end nil)
(list beg end))))
(defun allout-show-children (&optional level strict)
"If point is visible, show all direct subheadings of this heading.
Otherwise, do `allout-show-to-offshoot', and then show subheadings.
Optional LEVEL specifies how many levels below the current level
should be shown, or all levels if t. Default is 1.
Optional STRICT means don't resort to -show-to-offshoot, no matter
what. This is basically so -show-to-offshoot, which is called by
this function, can employ the pure offspring-revealing capabilities of
it.
Returns point at end of subtree that was opened, if any. (May get a
point of non-opened subtree?)"
(interactive "p")
(let ((start-point (point)))
(if (and (not strict)
(allout-hidden-p))
(progn (allout-show-to-offshoot) (allout-show-children level t))
(save-excursion
(allout-beginning-of-current-line)
(save-restriction
(let* (depth
(chart-level (cond ((not level) 1)
((eq level t) nil)
(t level)))
(chart (allout-chart-subtree chart-level))
(to-reveal (or (allout-chart-to-reveal chart chart-level)
(and chart
(interactive-p)
(save-excursion
(allout-back-to-current-heading)
(setq depth (allout-current-depth))
(and (allout-next-heading)
(> allout-recent-depth
(1+ depth))))
(message
"Discontinuous offspring; use `%s %s'%s."
(substitute-command-keys
"\\[universal-argument]")
(substitute-command-keys
"\\[allout-shift-out]")
" to elevate them.")
(allout-chart-to-reveal
chart (- allout-recent-depth depth))))))
(goto-char start-point)
(when (and strict (allout-hidden-p))
(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)))))))
(goto-char start-point)))
(defun allout-show-to-offshoot ()
"Like `allout-show-entry', but reveals all concealed ancestors, as well.
Useful for coherently exposing to a random point in a hidden region."
(interactive)
(save-excursion
(let ((inhibit-field-text-motion t)
(orig-pt (point))
(orig-pref (allout-goto-prefix-doublechecked))
(last-at (point))
(bag-it 0))
(while (or (> bag-it 1) (allout-hidden-p))
(while (allout-hidden-p)
(move-beginning-of-line 1)
(if (allout-hidden-p) (forward-char -1)))
(if (= last-at (setq last-at (point)))
(progn (beginning-of-line)
(allout-show-current-subtree)
(goto-char orig-pt)
(setq bag-it (1+ bag-it))
(if (> bag-it 1)
(error "allout-show-to-offshoot: %s"
"Stumped by aberrant nesting.")))
(if (> bag-it 0) (setq bag-it 0))
(allout-show-children)
(goto-char orig-pref)))
(goto-char orig-pt)))
(if (allout-hidden-p)
(allout-show-entry)))
(defun allout-hide-current-entry ()
"Hide the body directly following this heading."
(interactive)
(allout-back-to-current-heading)
(save-excursion
(let ((inhibit-field-text-motion t))
(end-of-line))
(allout-flag-region (point)
(progn (allout-end-of-entry) (point))
t)))
(defun allout-show-current-entry (&optional arg)
"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 t) (point))
nil)
)))
(defun allout-show-current-subtree (&optional arg)
"Show everything within the current topic. With a repeat-count,
expose this topic and its siblings."
(interactive "P")
(save-excursion
(if (<= (allout-current-depth) 0)
(if (not (allout-next-heading))
(error "No topics")
(message "Above outermost topic - exposing all.")
(allout-flag-region (point-min)(point-max) nil))
(allout-beginning-of-current-line)
(if (not arg)
(allout-flag-current-subtree nil)
(allout-beginning-of-level)
(allout-expose-topic '(* :))))))
(defun allout-current-topic-collapsed-p (&optional include-single-liners)
"True if the currently visible containing topic is already collapsed.
Single line topics intrinsically can be considered as being both
collapsed and uncollapsed. If optional INCLUDE-SINGLE-LINERS is
true, then single-line topics are considered to be collapsed. By
default, they are treated as being uncollapsed."
(save-excursion
(and
(>= (progn (allout-back-to-current-heading)
(move-end-of-line 1)
(point))
(allout-end-of-current-subtree (not (looking-at "\n\n"))))
(or include-single-liners
(progn (backward-char 1) (allout-hidden-p))))))
(defun allout-hide-current-subtree (&optional just-close)
"Close the current topic, or containing topic if this one is already closed.
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 close the parent or
siblings, even if the target topic is already closed."
(interactive)
(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-ascend) (allout-hide-current-subtree))
(t (goto-char 0)
(message sibs-msg)
(allout-goto-prefix-doublechecked)
(allout-expose-topic '(0 :))
(message (concat sibs-msg " Done."))))
(goto-char from)))
(defun allout-show-current-branches ()
"Show all subheadings of this heading, but not their bodies."
(interactive)
(let ((inhibit-field-text-motion t))
(beginning-of-line))
(allout-show-children t))
(defun allout-hide-current-leaves ()
"Hide the bodies of the current topic and all its offspring."
(interactive)
(allout-back-to-current-heading)
(allout-hide-region-body (point) (progn (allout-end-of-current-subtree)
(point))))
(defun allout-show-all ()
"Show all of the text in the buffer."
(interactive)
(message "Exposing entire buffer...")
(allout-flag-region (point-min) (point-max) nil)
(message "Exposing entire buffer... Done."))
(defun allout-hide-bodies ()
"Hide all of buffer except headings."
(interactive)
(allout-hide-region-body (point-min) (point-max)))
(defun allout-hide-region-body (start end)
"Hide all body lines in the region, but not headings."
(save-excursion
(save-restriction
(narrow-to-region start end)
(goto-char (point-min))
(let ((inhibit-field-text-motion t))
(while (not (eobp))
(end-of-line)
(allout-flag-region (point) (allout-end-of-entry) t)
(if (not (eobp))
(forward-char
(if (looking-at "\n\n")
2 1))))))))
(defun allout-expose-topic (spec)
"Apply exposure specs to successive outline topic items.
Use the more convenient frontend, `allout-new-exposure', if you don't
need evaluation of the arguments, or even better, the `allout-layout'
variable-keyed mode-activation/auto-exposure feature of allout outline
mode. See the respective documentation strings for more details.
Cursor is left at start position.
SPEC is either a number or a list.
Successive specs on a list are applied to successive sibling topics.
A simple spec (either a number, one of a few symbols, or the null
list) dictates the exposure for the corresponding topic.
Non-null lists recursively designate exposure specs for respective
subtopics of the current topic.
The `:' repeat spec is used to specify exposure for any number of
successive siblings, up to the trailing ones for which there are
explicit specs following the `:'.
Simple (numeric and null-list) specs are interpreted as follows:
Numbers indicate the relative depth to open the corresponding topic.
- negative numbers force the topic to be closed before opening to the
absolute value of the number, so all siblings are open only to
that level.
- positive numbers open to the relative depth indicated by the
number, but do not force already opened subtopics to be closed.
- 0 means to close topic - hide all offspring.
: - `repeat'
apply prior element to all siblings at current level, *up to*
those siblings that would be covered by specs following the `:'
on the list. Ie, apply to all topics at level but the last
ones. (Only first of multiple colons at same level is
respected - subsequent ones are discarded.)
* - completely opens the topic, including bodies.
+ - shows all the sub headers, but not the bodies
- - exposes the body of the corresponding topic.
Examples:
\(allout-expose-topic '(-1 : 0))
Close this and all following topics at current level, exposing
only their immediate children, but close down the last topic
at this current level completely.
\(allout-expose-topic '(-1 () : 1 0))
Close current topic so only the immediate subtopics are shown;
show the children in the second to last topic, and completely
close the last one.
\(allout-expose-topic '(-2 : -1 *))
Expose children and grandchildren of all topics at current
level except the last two; expose children of the second to
last and completely open the last one."
(interactive "xExposure spec: ")
(if (not (listp spec))
nil
(let ((depth (allout-depth))
(max-pos 0)
prev-elem curr-elem
stay)
(while spec
(setq prev-elem curr-elem
curr-elem (car spec)
spec (cdr spec))
(cond ((null curr-elem) nil)
((symbolp curr-elem)
(cond ((eq curr-elem '*) (allout-show-current-subtree)
(if (> allout-recent-end-of-subtree max-pos)
(setq max-pos allout-recent-end-of-subtree)))
((eq curr-elem '+)
(if (not (allout-hidden-p))
(save-excursion (allout-hide-current-subtree t)))
(allout-show-current-branches)
(if (> allout-recent-end-of-subtree max-pos)
(setq max-pos allout-recent-end-of-subtree)))
((eq curr-elem '-) (allout-show-current-entry))
((eq curr-elem ':)
(setq stay t)
(let ((residue (- (length (allout-chart-siblings))
(length spec))))
(if (< 0 residue)
(setq spec (append (make-list residue prev-elem)
spec)))))))
((numberp curr-elem)
(if (and (>= 0 curr-elem) (not (allout-hidden-p)))
(save-excursion (allout-hide-current-subtree t)
(if (> 0 curr-elem)
nil
(if (> allout-recent-end-of-subtree max-pos)
(setq max-pos
allout-recent-end-of-subtree)))))
(if (> (abs curr-elem) 0)
(progn (allout-show-children (abs curr-elem))
(if (> allout-recent-end-of-subtree max-pos)
(setq max-pos allout-recent-end-of-subtree)))))
((listp curr-elem)
(if (allout-descend-to-depth (1+ depth))
(let ((got (allout-expose-topic curr-elem)))
(if (and got (> got max-pos)) (setq max-pos got))))))
(cond (stay (setq stay nil))
((listp (car spec)) nil)
((> max-pos (point))
(progn (goto-char (min (point-max) max-pos))
(allout-next-heading)))
((allout-next-sibling depth))))
max-pos)))
(defun allout-old-expose-topic (spec &rest followers)
"Deprecated. Use `allout-expose-topic' (with different schema
format) instead.
Dictate wholesale exposure scheme for current topic, according to SPEC.
SPEC is either a number or a list. Optional successive args
dictate exposure for subsequent siblings of current topic.
A simple spec (either a number, a special symbol, or the null list)
dictates the overall exposure for a topic. Non null lists are
composite specs whose first element dictates the overall exposure for
a topic, with the subsequent elements in the list interpreted as specs
that dictate the exposure for the successive offspring of the topic.
Simple (numeric and null-list) specs are interpreted as follows:
- Numbers indicate the relative depth to open the corresponding topic:
- negative numbers force the topic to be close before opening to the
absolute value of the number.
- positive numbers just open to the relative depth indicated by the number.
- 0 just closes
- `*' completely opens the topic, including bodies.
- `+' shows all the sub headers, but not the bodies
- `-' exposes the body and immediate offspring of the corresponding topic.
If the spec is a list, the first element must be a number, which
dictates the exposure depth of the topic as a whole. Subsequent
elements of the list are nested SPECs, dictating the specific exposure
for the corresponding offspring of the topic.
Optional FOLLOWERS arguments dictate exposure for succeeding siblings."
(interactive "xExposure spec: ")
(let ((inhibit-field-text-motion t)
(depth (allout-current-depth))
max-pos)
(cond ((null spec) nil)
((symbolp spec)
(if (eq spec '*) (allout-show-current-subtree))
(if (eq spec '+) (allout-show-current-branches))
(if (eq spec '-) (allout-show-current-entry)))
((numberp spec)
(if (>= 0 spec)
(save-excursion (allout-hide-current-subtree t)
(end-of-line)
(if (or (not max-pos)
(> (point) max-pos))
(setq max-pos (point)))
(if (> 0 spec)
(setq spec (* -1 spec)))))
(if (> spec 0)
(allout-show-children spec)))
((listp spec)
(let ((new-depth (+ (allout-current-depth) 1))
got)
(setq max-pos (allout-old-expose-topic (car spec)))
(setq spec (cdr spec))
(if (and spec
(allout-descend-to-depth new-depth)
(not (allout-hidden-p)))
(progn (setq got (apply 'allout-old-expose-topic spec))
(if (and got (or (not max-pos) (> got max-pos)))
(setq max-pos got)))))))
(while (and followers
(progn (if (and max-pos (< (point) max-pos))
(progn (goto-char max-pos)
(setq max-pos nil)))
(end-of-line)
(allout-next-sibling depth)))
(allout-old-expose-topic (car followers))
(setq followers (cdr followers)))
max-pos))
(defmacro allout-new-exposure (&rest spec)
"Literal frontend for `allout-expose-topic', doesn't evaluate arguments.
Some arguments that would need to be quoted in `allout-expose-topic'
need not be quoted in `allout-new-exposure'.
Cursor is left at start position.
Use this instead of obsolete `allout-exposure'.
Examples:
\(allout-new-exposure (-1 () () () 1) 0)
Close current topic at current level so only the immediate
subtopics are shown, except also show the children of the
third subtopic; and close the next topic at the current level.
\(allout-new-exposure : -1 0)
Close all topics at current level to expose only their
immediate children, except for the last topic at the current
level, in which even its immediate children are hidden.
\(allout-new-exposure -2 : -1 *)
Expose children and grandchildren of first topic at current
level, and expose children of subsequent topics at current
level *except* for the last, which should be opened completely."
(list 'save-excursion
'(if (not (or (allout-goto-prefix-doublechecked)
(allout-next-heading)))
(error "allout-new-exposure: Can't find any outline topics"))
(list 'allout-expose-topic (list 'quote spec))))
(defun allout-stringify-flat-index (flat-index &optional context)
"Convert list representing section/subsection/... to document string.
Optional arg CONTEXT indicates interior levels to include."
(let ((delim ".")
result
numstr
(context-depth (or (and context 2) 1)))
(while (> context-depth 0)
(setq numstr (int-to-string (car flat-index))
flat-index (cdr flat-index)
result (if flat-index
(cons delim (cons numstr result))
(cons numstr result))
context-depth (if flat-index (1- context-depth) 0)))
(setq delim " ")
(if flat-index
(progn
(while flat-index
(setq result
(cons delim
(cons (make-string
(1+ (truncate (if (zerop (car flat-index))
1
(log10 (car flat-index)))))
? )
result)))
(setq flat-index (cdr flat-index)))
(setq result (cdr result))))
(apply 'concat result)))
(defun allout-stringify-flat-index-plain (flat-index)
"Convert list representing section/subsection/... to document string."
(let ((delim ".")
result)
(while flat-index
(setq result (cons (int-to-string (car flat-index))
(if result
(cons delim result))))
(setq flat-index (cdr flat-index)))
(apply 'concat result)))
(defun allout-stringify-flat-index-indented (flat-index)
"Convert list representing section/subsection/... to document string."
(let ((delim ".")
result
numstr)
(setq numstr (int-to-string (car flat-index))
flat-index (cdr flat-index)
result (if flat-index
(cons delim (cons numstr result))
(cons numstr result)))
(setq delim " ")
(if flat-index
(progn
(while flat-index
(setq result
(cons delim
(cons (make-string
(1+ (truncate (if (zerop (car flat-index))
1
(log10 (car flat-index)))))
? )
result)))
(setq flat-index (cdr flat-index)))
(setq result (cdr result))))
(apply 'concat result)))
(defun allout-listify-exposed (&optional start end format)
"Produce a list representing exposed topics in current region.
This list can then be used by `allout-process-exposed' to manipulate
the subject region.
Optional START and END indicate bounds of region.
optional arg, FORMAT, designates an alternate presentation form for
the prefix:
list - Present prefix as numeric section.subsection..., starting with
section indicated by the list, innermost nesting first.
`indent' (symbol) - Convert header prefixes to all white space,
except for distinctive bullets.
The elements of the list produced are lists that represents a topic
header and body. The elements of that list are:
- a number representing the depth of the topic,
- a string representing the header-prefix, including trailing whitespace and
bullet.
- a string representing the bullet character,
- and a series of strings, each containing one line of the exposed
portion of the topic entry."
(interactive "r")
(save-excursion
(let*
((inhibit-field-text-motion t)
strings prefix result depth new-depth out gone-out bullet beg
next done)
(goto-char start)
(beginning-of-line)
(if (> (allout-goto-prefix-doublechecked) start)
(setq result (list (list 0 "" nil
(buffer-substring start (1- (point)))))))
(while (and (not done)
(not (eobp)) (not (> (point) end)))
(setq depth allout-recent-depth bullet (allout-recent-bullet) prefix (allout-recent-prefix)
beg (progn (allout-end-of-prefix t) (point))) (setq done (not (allout-next-visible-heading 1)))
(setq new-depth allout-recent-depth)
(setq gone-out out
out (< new-depth depth))
(beginning-of-line)
(setq next (point))
(goto-char beg)
(setq strings nil)
(while (> next (point)) (setq strings
(cons (buffer-substring
beg
(progn
(end-of-line)
(allout-back-to-visible-text)))
strings))
(when (< (point) next) (line-move 1)
(beginning-of-line))
(setq beg (point)))
(setq strings (nreverse strings))
(setq result
(cons
(if format
(let ((special (if (string-match
(regexp-quote bullet)
allout-distinctive-bullets-string)
bullet)))
(cond ((listp format)
(list depth
(if allout-abbreviate-flattened-numbering
(allout-stringify-flat-index format
gone-out)
(allout-stringify-flat-index-plain
format))
strings
special))
((eq format 'indent)
(if special
(list depth
(concat (make-string (1+ depth) ? )
(substring prefix -1))
strings)
(list depth
(make-string depth ? )
strings)))
(t (error "allout-listify-exposed: %s %s"
"invalid format" format))))
(list depth prefix strings))
result))
(if (and format (listp format))
(cond ((= new-depth depth)
(setq format (cons (1+ (car format))
(cdr format))))
((> new-depth depth) (setq format (cons 1 format)))
(t
(while (< new-depth depth)
(setq format (cdr format))
(setq depth (1- depth)))
(setq format
(cons (1+ (or (car format)
-1))
(cdr format)))))))
(nreverse result))))
(defmacro my-region-active-p ()
(if (fboundp 'region-active-p)
'(region-active-p)
'mark-active))
(defun allout-process-exposed (&optional func from to frombuf tobuf
format start-num)
"Map function on exposed parts of current topic; results to another buffer.
All args are options; default values itemized below.
Apply FUNCTION to exposed portions FROM position TO position in buffer
FROMBUF to buffer TOBUF. Sixth optional arg, FORMAT, designates an
alternate presentation form:
`flat' - Present prefix as numeric section.subsection..., starting with
section indicated by the start-num, innermost nesting first.
X`flat-indented' - Prefix is like `flat' for first topic at each
X level, but subsequent topics have only leaf topic
X number, padded with blanks to line up with first.
`indent' (symbol) - Convert header prefixes to all white space,
except for distinctive bullets.
Defaults:
FUNCTION: `allout-insert-listified'
FROM: region start, if region active, else start of buffer
TO: region end, if region active, else end of buffer
FROMBUF: current buffer
TOBUF: buffer name derived: \"*current-buffer-name exposed*\"
FORMAT: nil"
(if (not func) (setq func 'allout-insert-listified))
(if (not (and from to))
(if (my-region-active-p)
(setq from (region-beginning) to (region-end))
(setq from (point-min) to (point-max))))
(if frombuf
(if (not (bufferp frombuf))
(let ((got (get-buffer frombuf)))
(if (not got)
(error (concat "allout-process-exposed: source buffer "
frombuf
" not found."))
(setq frombuf got))))
(setq frombuf (current-buffer)))
(if tobuf
(if (not (bufferp tobuf))
(setq tobuf (get-buffer-create tobuf)))
(setq tobuf (concat "*" (buffer-name frombuf) " exposed*")))
(if (listp format)
(nreverse format))
(let* ((listified
(progn (set-buffer frombuf)
(allout-listify-exposed from to format))))
(set-buffer tobuf)
(mapcar func listified)
(pop-to-buffer tobuf)))
(defun allout-insert-listified (listified)
"Insert contents of listified outline portion in current buffer.
LISTIFIED is a list representing each topic header and body:
\`(depth prefix text)'
or \`(depth prefix text bullet-plus)'
If `bullet-plus' is specified, it is inserted just after the entire prefix."
(setq listified (cdr listified))
(let ((prefix (prog1
(car listified)
(setq listified (cdr listified))))
(text (prog1
(car listified)
(setq listified (cdr listified))))
(bullet-plus (car listified)))
(insert prefix)
(if bullet-plus (insert (concat " " bullet-plus)))
(while text
(insert (car text))
(if (setq text (cdr text))
(insert "\n")))
(insert "\n")))
(defun allout-copy-exposed-to-buffer (&optional arg tobuf format)
"Duplicate exposed portions of current outline to another buffer.
Other buffer has current buffers name with \" exposed\" appended to it.
With repeat count, copy the exposed parts of only the current topic.
Optional second arg TOBUF is target buffer name.
Optional third arg FORMAT, if non-nil, symbolically designates an
alternate presentation format for the outline:
`flat' - Convert topic header prefixes to numeric
section.subsection... identifiers.
`indent' - Convert header prefixes to all white space, except for
distinctive bullets.
`indent-flat' - The best of both - only the first of each level has
the full path, the rest have only the section number
of the leaf, preceded by the right amount of indentation."
(interactive "P")
(if (not tobuf)
(setq tobuf (get-buffer-create (concat "*" (buffer-name) " exposed*"))))
(let* ((start-pt (point))
(beg (if arg (allout-back-to-current-heading) (point-min)))
(end (if arg (allout-end-of-current-subtree) (point-max)))
(buf (current-buffer))
(start-list ()))
(if (eq format 'flat)
(setq format (if arg (save-excursion
(goto-char beg)
(allout-topic-flat-index))
'(1))))
(save-excursion (set-buffer tobuf)(erase-buffer))
(allout-process-exposed 'allout-insert-listified
beg
end
(current-buffer)
tobuf
format start-list)
(goto-char (point-min))
(pop-to-buffer buf)
(goto-char start-pt)))
(defun allout-flatten-exposed-to-buffer (&optional arg tobuf)
"Present numeric outline of outline's exposed portions in another buffer.
The resulting outline is not compatible with outline mode - use
`allout-copy-exposed-to-buffer' if you want that.
Use `allout-indented-exposed-to-buffer' for indented presentation.
With repeat count, copy the exposed portions of only current topic.
Other buffer has current buffer's name with \" exposed\" appended to
it, unless optional second arg TOBUF is specified, in which case it is
used verbatim."
(interactive "P")
(allout-copy-exposed-to-buffer arg tobuf 'flat))
(defun allout-indented-exposed-to-buffer (&optional arg tobuf)
"Present indented outline of outline's exposed portions in another buffer.
The resulting outline is not compatible with outline mode - use
`allout-copy-exposed-to-buffer' if you want that.
Use `allout-flatten-exposed-to-buffer' for numeric sectional presentation.
With repeat count, copy the exposed portions of only current topic.
Other buffer has current buffer's name with \" exposed\" appended to
it, unless optional second arg TOBUF is specified, in which case it is
used verbatim."
(interactive "P")
(allout-copy-exposed-to-buffer arg tobuf 'indent))
(defun allout-latex-verb-quote (string &optional flow)
"Return copy of STRING for literal reproduction across LaTeX processing.
Expresses the original characters (including carriage returns) of the
string across LaTeX processing."
(mapconcat (function
(lambda (char)
(cond ((memq char '(?\\ ?$ ?% ?# ?& ?{ ?} ?_ ?^ ?- ?*))
(concat "\\char" (number-to-string char) "{}"))
((= char ?\n) "\\\\")
(t (char-to-string char)))))
string
""))
(defun allout-latex-verbatim-quote-curr-line ()
"Express line for exact (literal) representation across LaTeX processing.
Adjust line contents so it is unaltered (from the original line)
across LaTeX processing, within the context of a `verbatim'
environment. Leaves point at the end of the line."
(let ((inhibit-field-text-motion t))
(beginning-of-line)
(let ((beg (point))
(end (progn (end-of-line)(point))))
(goto-char beg)
(while (re-search-forward "\\\\"
end 1) (goto-char (match-beginning 2))
(insert "\\")
(setq end (1+ end))
(goto-char (1+ (match-end 2)))))))
(defun allout-insert-latex-header (buffer)
"Insert initial LaTeX commands at point in BUFFER."
(set-buffer buffer)
(let ((doc-style (format "\n\\documentstyle{%s}\n"
"report"))
(page-numbering (if allout-number-pages
"\\pagestyle{empty}\n"
""))
(titlecmd (format "\\newcommand{\\titlecmd}[1]{{%s #1}}\n"
allout-title-style))
(labelcmd (format "\\newcommand{\\labelcmd}[1]{{%s #1}}\n"
allout-label-style))
(headlinecmd (format "\\newcommand{\\headlinecmd}[1]{{%s #1}}\n"
allout-head-line-style))
(bodylinecmd (format "\\newcommand{\\bodylinecmd}[1]{{%s #1}}\n"
allout-body-line-style))
(setlength (format "%s%s%s%s"
"\\newlength{\\stepsize}\n"
"\\setlength{\\stepsize}{"
allout-indent
"}\n"))
(oneheadline (format "%s%s%s%s%s%s%s"
"\\newcommand{\\OneHeadLine}[3]{%\n"
"\\noindent%\n"
"\\hspace*{#2\\stepsize}%\n"
"\\labelcmd{#1}\\hspace*{.2cm}"
"\\headlinecmd{#3}\\\\["
allout-line-skip
"]\n}\n"))
(onebodyline (format "%s%s%s%s%s%s"
"\\newcommand{\\OneBodyLine}[2]{%\n"
"\\noindent%\n"
"\\hspace*{#1\\stepsize}%\n"
"\\bodylinecmd{#2}\\\\["
allout-line-skip
"]\n}\n"))
(begindoc "\\begin{document}\n\\begin{center}\n")
(title (format "%s%s%s%s"
"\\titlecmd{"
(allout-latex-verb-quote (if allout-title
(condition-case nil
(eval allout-title)
(error "<unnamed buffer>"))
"Unnamed Outline"))
"}\n"
"\\end{center}\n\n"))
(hsize "\\hsize = 7.5 true in\n")
(hoffset "\\hoffset = -1.5 true in\n")
(vspace "\\vspace{.1cm}\n\n"))
(insert (concat doc-style
page-numbering
titlecmd
labelcmd
headlinecmd
bodylinecmd
setlength
oneheadline
onebodyline
begindoc
title
hsize
hoffset
vspace)
)))
(defun allout-insert-latex-trailer (buffer)
"Insert concluding LaTeX commands at point in BUFFER."
(set-buffer buffer)
(insert "\n\\end{document}\n"))
(defun allout-latexify-one-item (depth prefix bullet text)
"Insert LaTeX commands for formatting one outline item.
Args are the topics numeric DEPTH, the header PREFIX lead string, the
BULLET string, and a list of TEXT strings for the body."
(let* ((head-line (if text (car text)))
(body-lines (cdr text))
(curr-line)
body-content bop)
(insert (concat "\\OneHeadLine{\\verb\1 "
(allout-latex-verb-quote bullet)
"\1}{"
depth
"}{\\verb\1 "
(if head-line
(allout-latex-verb-quote head-line)
"")
"\1}\n"))
(if (not body-lines)
nil
(insert "\\begin{verbatim}\n")
(while body-lines
(setq curr-line (car body-lines))
(if (and (not body-content)
(not (string-match "^\\s-*$" curr-line)))
(setq body-content t))
(if (and body-content
(setq bop (string-match "\\end{verbatim}" curr-line)))
(setq curr-line (concat (substring curr-line 0 bop)
">"
(substring curr-line bop))))
(insert curr-line)
(allout-latex-verbatim-quote-curr-line)
(insert "\n")
(setq body-lines (cdr body-lines)))
(if body-content
(setq body-content nil)
(forward-char -1)
(insert "\\ ")
(forward-char 1))
(insert "\\end{verbatim}\n")
)))
(defun allout-latexify-exposed (arg &optional tobuf)
"Format current topics exposed portions to TOBUF for LaTeX processing.
TOBUF defaults to a buffer named the same as the current buffer, but
with \"*\" prepended and \" latex-formed*\" appended.
With repeat count, copy the exposed portions of entire buffer."
(interactive "P")
(if (not tobuf)
(setq tobuf
(get-buffer-create (concat "*" (buffer-name) " latexified*"))))
(let* ((start-pt (point))
(beg (if arg (point-min) (allout-back-to-current-heading)))
(end (if arg (point-max) (allout-end-of-current-subtree)))
(buf (current-buffer)))
(set-buffer tobuf)
(erase-buffer)
(allout-insert-latex-header tobuf)
(goto-char (point-max))
(allout-process-exposed 'allout-latexify-one-item
beg
end
buf
tobuf)
(goto-char (point-max))
(allout-insert-latex-trailer tobuf)
(goto-char (point-min))
(pop-to-buffer buf)
(goto-char start-pt)))
(defun allout-toggle-current-subtree-encryption (&optional fetch-pass)
"Encrypt clear or decrypt encoded text of visibly-containing topic's contents.
Optional FETCH-PASS universal argument provokes key-pair encryption with
single universal argument. With doubled universal argument (value = 16),
it forces prompting for the passphrase regardless of availability from the
passphrase cache. With no universal argument, the appropriate passphrase
is obtained from the cache, if available, else from the user.
Only GnuPG encryption is supported.
\*NOTE WELL* that the encrypted text must be ascii-armored. For gnupg
encryption, include the option ``armor'' in your ~/.gnupg/gpg.conf file.
Both symmetric-key and key-pair encryption is implemented. Symmetric is
the default, use a single (x4) universal argument for keypair mode.
Encrypted topic's bullet is set to a `~' to signal that the contents of the
topic (body and subtopics, but not heading) is pending encryption or
encrypted. `*' asterisk immediately after the bullet signals that the body
is encrypted, its' absence means the topic is meant to be encrypted but is
not. When a file with topics pending encryption is saved, topics pending
encryption are encrypted. See allout-encrypt-unencrypted-on-saves for
auto-encryption specifics.
\*NOTE WELL* that automatic encryption that happens during saves will
default to symmetric encryption - you must deliberately (re)encrypt key-pair
encrypted topics if you want them to continue to use the key-pair cipher.
Level-one topics, with prefix consisting solely of an `*' asterisk, cannot be
encrypted. If you want to encrypt the contents of a top-level topic, use
\\[allout-shift-in] to increase its depth.
Passphrase Caching
The encryption passphrase is solicited if not currently available in the
passphrase cache from a recent encryption action.
The solicited passphrase is retained for reuse in a cache, if enabled. See
`pgg-cache-passphrase' and `pgg-passphrase-cache-expiry' for details.
Symmetric Passphrase Hinting and Verification
If the file previously had no associated passphrase, or had a different
passphrase than specified, the user is prompted to repeat the new one for
corroboration. A random string encrypted by the new passphrase is set on
the buffer-specific variable `allout-passphrase-verifier-string', for
confirmation of the passphrase when next obtained, before encrypting or
decrypting anything with it. This helps avoid mistakenly shifting between
keys.
If allout customization var `allout-passphrase-verifier-handling' is
non-nil, an entry for `allout-passphrase-verifier-string' and its value is
added to an Emacs 'local variables' section at the end of the file, which
is created if necessary. That setting is for retention of the passphrase
verifier across Emacs sessions.
Similarly, `allout-passphrase-hint-string' stores a user-provided reminder
about their passphrase, and `allout-passphrase-hint-handling' specifies
when the hint is presented, or if passphrase hints are disabled. If
enabled (see the `allout-passphrase-hint-handling' docstring for details),
the hint string is stored in the local-variables section of the file, and
solicited whenever the passphrase is changed."
(interactive "P")
(save-excursion
(allout-back-to-current-heading)
(allout-toggle-subtree-encryption fetch-pass)
)
)
(defun allout-toggle-subtree-encryption (&optional fetch-pass)
"Encrypt clear text or decrypt encoded topic contents (body and subtopics.)
Optional FETCH-PASS universal argument provokes key-pair encryption with
single universal argument. With doubled universal argument (value = 16),
it forces prompting for the passphrase regardless of availability from the
passphrase cache. With no universal argument, the appropriate passphrase
is obtained from the cache, if available, else from the user.
Currently only GnuPG encryption is supported, and integration
with gpg-agent is not yet implemented.
\**NOTE WELL** that the encrypted text must be ascii-armored. For gnupg
encryption, include the option ``armor'' in your ~/.gnupg/gpg.conf file.
See `allout-toggle-current-subtree-encryption' for more details."
(interactive "P")
(save-excursion
(allout-end-of-prefix t)
(if (= allout-recent-depth 1)
(error (concat "Cannot encrypt or decrypt level 1 topics -"
" shift it in to make it encryptable")))
(let* ((allout-buffer (current-buffer))
(bullet-pos allout-recent-prefix-beginning)
(after-bullet-pos (point))
(was-encrypted
(progn (if (= (point-max) after-bullet-pos)
(error "no body to encrypt"))
(allout-encrypted-topic-p)))
(was-collapsed (if (not (search-forward "\n" nil t))
nil
(backward-char 1)
(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-trailing-char (char-after subtree-end))
(result-text (if (or (string= "" subject-text)
(string= "\n" subject-text))
(error "No topic contents to %scrypt"
(if was-encrypted "de" "en"))
nil))
(key-info (or
(and was-encrypted
(allout-encrypted-key-info subject-text))
(and (member fetch-pass '(4 (4)))
'(keypair nil))
'(symmetric nil)))
(for-key-type (car key-info))
(for-key-identity (cadr key-info))
(fetch-pass (and fetch-pass (member fetch-pass '(16 (16)))))
(was-coding-system buffer-file-coding-system))
(when (not was-encrypted)
(setq buffer-file-coding-system
(select-safe-coding-system subtree-beg subtree-end))
(if (and (not (equal buffer-file-coding-system
was-coding-system))
(yes-or-no-p
(format (concat "Register coding system %s as file local"
" var? Necessary when only encrypted text"
" is in that coding system. ")
buffer-file-coding-system)))
(allout-adjust-file-variable "buffer-file-coding-system"
buffer-file-coding-system)))
(setq result-text
(allout-encrypt-string subject-text was-encrypted
(current-buffer)
for-key-type for-key-identity fetch-pass))
(allout-unprotected
(progn
(set-buffer allout-buffer)
(delete-region subtree-beg subtree-end)
(insert result-text)
(if was-collapsed
(allout-flag-region (1- subtree-beg) (point) t))
(if (not was-encrypted)
(if (and (= subtree-end-char ?\n)
(= subtree-trailing-char ?\n))
(insert subtree-trailing-char)))
(if (not (string= (buffer-substring-no-properties
(1- after-bullet-pos) after-bullet-pos)
allout-topic-encryption-bullet))
(progn (goto-char (1- after-bullet-pos))
(delete-char 1)
(insert allout-topic-encryption-bullet)))
(if was-encrypted
(progn (goto-char after-bullet-pos)
(delete-char 1))
(goto-char after-bullet-pos)
(insert "*"))))
(run-hook-with-args 'allout-structure-added-hook
bullet-pos subtree-end))))
(defun allout-encrypt-string (text decrypt allout-buffer key-type for-key
fetch-pass &optional retried rejected
verifying passphrase)
"Encrypt or decrypt message TEXT.
If DECRYPT is true (default false), then decrypt instead of encrypt.
FETCH-PASS (default false) forces fresh prompting for the passphrase.
KEY-TYPE indicates whether to use a 'symmetric or 'keypair cipher.
FOR-KEY is human readable identification of the first of the user's
eligible secret keys a keypair decryption targets, or else nil.
Optional RETRIED is for internal use - conveys the number of failed keys
that have been solicited in sequence leading to this current call.
Optional PASSPHRASE enables explicit delivery of the decryption passphrase,
for verification purposes.
Optional REJECTED is for internal use - conveys the number of
rejections due to matches against
`allout-encryption-ciphertext-rejection-regexps', as limited by
`allout-encryption-ciphertext-rejection-ceiling'.
Returns the resulting string, or nil if the transformation fails."
(require 'pgg)
(if (not (fboundp 'pgg-encrypt-symmetric))
(error "Allout encryption depends on a newer version of pgg"))
(let* ((scheme (upcase
(format "%s" (or pgg-scheme pgg-default-scheme "GPG"))))
(for-key (and (equal key-type 'keypair)
(or for-key
(split-string (read-string
(format "%s message recipients: "
scheme))
"[ \t,]+"))))
(target-prompt-id (if (equal key-type 'keypair)
(if (= (length for-key) 1)
(car for-key) for-key)
(buffer-name allout-buffer)))
(target-cache-id (format "%s-%s"
key-type
(if (equal key-type 'keypair)
target-prompt-id
(or (buffer-file-name allout-buffer)
target-prompt-id))))
(encoding (with-current-buffer allout-buffer
buffer-file-coding-system))
(multibyte (with-current-buffer allout-buffer
enable-multibyte-characters))
(strip-plaintext-regexps
(if (not decrypt)
(allout-get-configvar-values
'allout-encryption-plaintext-sanitization-regexps)))
(reject-ciphertext-regexps
(if (not decrypt)
(allout-get-configvar-values
'allout-encryption-ciphertext-rejection-regexps)))
(rejected (or rejected 0))
(rejections-left (- allout-encryption-ciphertext-rejection-ceiling
rejected))
result-text status
)
(if (and fetch-pass (not passphrase))
(pgg-remove-passphrase-from-cache target-cache-id t))
(catch 'encryption-failed
(if (and (not passphrase)
(not (equal key-type 'keypair)))
(setq passphrase (allout-obtain-passphrase for-key
target-cache-id
target-prompt-id
key-type
allout-buffer
retried fetch-pass)))
(with-temp-buffer
(insert text)
(set-buffer-multibyte multibyte)
(when encoding
(set-buffer-file-coding-system encoding)
(if (not decrypt)
(encode-coding-region (point-min) (point-max) encoding)))
(when (and strip-plaintext-regexps (not decrypt))
(dolist (re strip-plaintext-regexps)
(let ((re (if (listp re) (car re) re))
(replacement (if (listp re) (cadr re) "")))
(goto-char (point-min))
(while (re-search-forward re nil t)
(replace-match replacement nil nil)))))
(cond
((equal key-type 'symmetric)
(setq status
(if decrypt
(pgg-decrypt (point-min) (point-max) passphrase)
(pgg-encrypt-symmetric (point-min) (point-max)
passphrase)))
(if status
(pgg-situate-output (point-min) (point-max))
(if verifying
(throw 'encryption-failed nil)
(pgg-remove-passphrase-from-cache target-cache-id t)
(error "Symmetric-cipher %scryption failed - %s"
(if decrypt "de" "en")
"try again with different passphrase."))))
((not decrypt)
(setq status
(pgg-encrypt for-key
nil (point-min) (point-max) passphrase))
(if status
(pgg-situate-output (point-min) (point-max))
(error (pgg-remove-passphrase-from-cache target-cache-id t)
(error "encryption failed"))))
(t
(setq status
(pgg-decrypt (point-min) (point-max) passphrase))
(if status
(pgg-situate-output (point-min) (point-max))
(error (pgg-remove-passphrase-from-cache target-cache-id t)
(error "decryption failed")))))
(setq result-text
(buffer-substring-no-properties
1 (- (point-max) (if decrypt 0 1))))
)
(cond ((not result-text)
(if verifying
nil
(pgg-remove-passphrase-from-cache target-cache-id t)
(allout-encrypt-string text decrypt allout-buffer
key-type for-key nil
(if retried (1+ retried) 1)
rejected verifying nil)))
((and (not decrypt)
(let ((regexps reject-ciphertext-regexps)
reject-it)
(while (and regexps (not reject-it))
(setq reject-it (string-match (car regexps)
result-text))
(pop regexps))
reject-it))
(setq rejections-left (1- rejections-left))
(if (<= rejections-left 0)
(error (concat "Ciphertext rejected too many times"
" (%s), per `%s'")
allout-encryption-ciphertext-rejection-ceiling
'allout-encryption-ciphertext-rejection-regexps)
(allout-encrypt-string text decrypt allout-buffer
key-type for-key nil
retried (1+ rejected)
verifying passphrase)))
((and (not decrypt)
(string-match "[\C-a\C-k\C-o-\C-z\C-@]"
result-text))
(error (concat "Encryption produced non-armored text, which"
"conflicts with allout mode - reconfigure!")))
((or verifying (not (equal key-type 'symmetric)))
(if (or verifying decrypt)
(pgg-add-passphrase-to-cache target-cache-id
passphrase t))
result-text)
(t
(set-buffer allout-buffer)
(if passphrase
(pgg-add-passphrase-to-cache target-cache-id
passphrase t))
(allout-update-passphrase-mnemonic-aids for-key passphrase
allout-buffer)
result-text)
)
)
)
)
(defun allout-obtain-passphrase (for-key cache-id prompt-id key-type
allout-buffer retried fetch-pass)
"Obtain passphrase for a key from the cache or else from the user.
When obtaining from the user, symmetric-cipher passphrases are verified
against either, if available and enabled, a random string that was
encrypted against the passphrase, or else against repeated entry by the
user for corroboration.
FOR-KEY is the key for which the passphrase is being obtained.
CACHE-ID is the cache id of the key for the passphrase.
PROMPT-ID is the id for use when prompting the user.
KEY-TYPE is either 'symmetric or 'keypair.
ALLOUT-BUFFER is the buffer containing the entry being en/decrypted.
RETRIED is the number of this attempt to obtain this passphrase.
FETCH-PASS causes the passphrase to be solicited from the user, regardless
of the availability of a cached copy."
(if (not (equal key-type 'symmetric))
(pgg-read-passphrase (format "%s passphrase%s: "
(upcase (format "%s" (or pgg-scheme
pgg-default-scheme
"GPG")))
(if prompt-id
(format " for %s" prompt-id)
""))
cache-id t)
(save-excursion
(set-buffer allout-buffer)
(let* ((hint (if (and (not (string= allout-passphrase-hint-string ""))
(or (equal allout-passphrase-hint-handling 'always)
(and (equal allout-passphrase-hint-handling
'needed)
retried)))
(format " [%s]" allout-passphrase-hint-string)
""))
(retry-message (if retried (format " (%s retry)" retried) ""))
(prompt-sans-hint (format "'%s' symmetric passphrase%s: "
prompt-id retry-message))
(full-prompt (format "'%s' symmetric passphrase%s%s: "
prompt-id hint retry-message))
(prompt full-prompt)
(verifier-string (allout-get-encryption-passphrase-verifier))
(cached (and (not fetch-pass)
(pgg-read-passphrase-from-cache cache-id t)))
(got-pass (or cached
(pgg-read-passphrase full-prompt cache-id t)))
confirmation)
(if (not got-pass)
nil
(setq got-pass (copy-sequence got-pass))
(cond (verifier-string
(save-window-excursion
(if (allout-encrypt-string verifier-string 'decrypt
allout-buffer 'symmetric
for-key nil 0 0 'verifying
(copy-sequence got-pass))
(setq confirmation (format "%s" got-pass))))
(if (and (not confirmation)
(if (yes-or-no-p
(concat "Passphrase differs from established"
" - use new one instead? "))
(progn
(pgg-remove-passphrase-from-cache cache-id t)
(setq prompt prompt-sans-hint)
nil)
t))
(progn (pgg-remove-passphrase-from-cache cache-id t)
(error "Wrong passphrase."))))
((or fetch-pass (not cached))
(pgg-remove-passphrase-from-cache cache-id t))))
(if (not confirmation)
(setq confirmation
(pgg-read-passphrase (concat prompt
" ... confirm spelling: ")
cache-id t)))
(prog1
(if (equal got-pass confirmation)
confirmation
(if (yes-or-no-p (concat "spelling of original and"
" confirmation differ - retry? "))
(progn (setq retried (if retried (1+ retried) 1))
(pgg-remove-passphrase-from-cache cache-id t)
(pgg-read-passphrase prompt-sans-hint cache-id t))
(pgg-remove-passphrase-from-cache cache-id t)
(error "Confirmation failed."))))))))
(defun allout-encrypted-topic-p ()
"True if the current topic is encryptable and encrypted."
(save-excursion
(allout-end-of-prefix t)
(and (string= (buffer-substring-no-properties (1- (point)) (point))
allout-topic-encryption-bullet)
(looking-at "\\*"))
)
)
(defun allout-encrypted-key-info (text)
"Return a pair of the key type and identity of a recipient's secret key.
The key type is one of 'symmetric or 'keypair.
if 'keypair, and some of the user's secret keys are among those for which
the message was encoded, return the identity of the first. otherwise,
return nil for the second item of the pair.
An error is raised if the text is not encrypted."
(require 'pgg-parse)
(save-excursion
(with-temp-buffer
(insert text)
(let* ((parsed-armor (pgg-parse-armor-region (point-min) (point-max)))
(type (if (pgg-gpg-symmetric-key-p parsed-armor)
'symmetric
'keypair))
secret-keys first-secret-key for-key-owner)
(if (equal type 'keypair)
(setq secret-keys (pgg-gpg-lookup-all-secret-keys)
first-secret-key (pgg-gpg-select-matching-key parsed-armor
secret-keys)
for-key-owner (and first-secret-key
(pgg-gpg-lookup-key-owner
first-secret-key))))
(list type (pgg-gpg-key-id-from-key-owner for-key-owner))
)
)
)
)
(defun allout-create-encryption-passphrase-verifier (passphrase)
"Encrypt random message for later validation of symmetric key's passphrase."
(random t)
(let ((spew (make-string 20 ?\0)))
(dotimes (i (length spew))
(aset spew i (1+ (random 254))))
(allout-encrypt-string spew nil (current-buffer) 'symmetric
nil nil 0 0 passphrase))
)
(defun allout-update-passphrase-mnemonic-aids (for-key passphrase
outline-buffer)
"Update passphrase verifier and hint strings if necessary.
See `allout-passphrase-verifier-string' and `allout-passphrase-hint-string'
settings.
PASSPHRASE is the passphrase being mnemonicized
OUTLINE-BUFFER is the buffer of the outline being adjusted.
These are used to help the user keep track of the passphrase they use for
symmetric encryption in the file.
Behavior is governed by `allout-passphrase-verifier-handling',
`allout-passphrase-hint-handling', and also, controlling whether the values
are preserved on Emacs local file variables,
`allout-enable-file-variable-adjustment'."
(let* ((new-verifier-needed (not (allout-verify-passphrase
for-key passphrase outline-buffer)))
(new-verifier-string
(if new-verifier-needed
(subst-char-in-string
?\n ?\C-a (allout-create-encryption-passphrase-verifier
passphrase))))
new-hint)
(when new-verifier-string
(when (and allout-passphrase-hint-handling
(not (equal allout-passphrase-hint-handling 'disabled)))
(setq new-hint
(read-from-minibuffer "Passphrase hint to jog your memory: "
allout-passphrase-hint-string))
(when (not (string= new-hint allout-passphrase-hint-string))
(setq allout-passphrase-hint-string new-hint)
(allout-adjust-file-variable "allout-passphrase-hint-string"
allout-passphrase-hint-string)))
(when allout-passphrase-verifier-handling
(setq allout-passphrase-verifier-string new-verifier-string)
(allout-adjust-file-variable "allout-passphrase-verifier-string"
allout-passphrase-verifier-string))
)
)
)
(defun allout-get-encryption-passphrase-verifier ()
"Return text of the encrypt passphrase verifier, unmassaged, or nil if none.
Derived from value of `allout-passphrase-verifier-string'."
(let ((verifier-string (and (boundp 'allout-passphrase-verifier-string)
allout-passphrase-verifier-string)))
(if verifier-string
(subst-char-in-string ?\C-a ?\n verifier-string))
)
)
(defun allout-verify-passphrase (key passphrase allout-buffer)
"True if passphrase successfully decrypts verifier, nil otherwise.
\"Otherwise\" includes absence of passphrase verifier."
(save-excursion
(set-buffer allout-buffer)
(and (boundp 'allout-passphrase-verifier-string)
allout-passphrase-verifier-string
(allout-encrypt-string (allout-get-encryption-passphrase-verifier)
'decrypt allout-buffer 'symmetric
key nil 0 0 'verifying passphrase)
t)))
(defun allout-next-topic-pending-encryption (&optional except-mark)
"Return the point of the next topic pending encryption, or nil if none.
EXCEPT-MARK identifies a point whose containing topics should be excluded
from encryption. This supports 'except-current mode of
`allout-encrypt-unencrypted-on-saves'.
Such a topic has the allout-topic-encryption-bullet without an
immediately following '*' that would mark the topic as being encrypted. It
must also have content."
(let (done got content-beg)
(while (not done)
(if (not (re-search-forward
(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")
(forward-char 1))
(setq got (point)))
(cond ((not got)
(setq done t))
((not (search-forward "\n"))
(setq got nil
done t))
((eobp)
(setq got nil
done t))
(t
(setq content-beg (point))
(backward-char 1)
(allout-end-of-subtree)
(if (or (<= (point) content-beg)
(and except-mark
(<= content-beg except-mark)
(>= (point) except-mark)))
(setq got nil)
(setq done t)))
)
)
(if got
(goto-char got))
)
)
(defun allout-encrypt-decrypted (&optional except-mark)
"Encrypt topics pending encryption except those containing exemption point.
EXCEPT-MARK identifies a point whose containing topics should be excluded
from encryption. This supports 'except-current mode of
`allout-encrypt-unencrypted-on-saves'.
If a topic that is currently being edited was encrypted, we return a list
containing the location of the topic and the location of the cursor just
before the topic was encrypted. This can be used, eg, to decrypt the topic
and exactly resituate the cursor if this is being done as part of a file
save. See `allout-encrypt-unencrypted-on-saves' for more info."
(interactive "p")
(save-excursion
(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))
(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)
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))
)
(if (not was-modified)
(set-buffer-modified-p nil))
(if editing-topic (list editing-topic editing-point))
)
)
)
(defalias 'outlinify-sticky 'outlineify-sticky)
(defun outlineify-sticky (&optional arg)
"Activate outline mode and establish file var so it is started subsequently.
See doc-string for `allout-layout' and `allout-init' for details on
setup for auto-startup."
(interactive "P")
(allout-mode t)
(save-excursion
(goto-char (point-min))
(if (allout-goto-prefix)
t
(allout-open-topic 2)
(insert (concat "Dummy outline topic header - see"
"`allout-mode' docstring: `^Hm'."))
(allout-adjust-file-variable
"allout-layout" (or allout-layout '(-1 : 0))))))
(defun allout-file-vars-section-data ()
"Return data identifying the file-vars section, or nil if none.
Returns list `(beginning-point prefix-string suffix-string)'."
(let (beg prefix suffix)
(save-excursion
(goto-char (point-max))
(search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move)
(if (let ((case-fold-search t))
(not (search-forward "Local Variables:" nil t)))
nil
(setq beg (- (point) 16))
(setq suffix (buffer-substring-no-properties
(point)
(progn (if (search-forward "\n" nil t)
(forward-char -1))
(point))))
(setq prefix (buffer-substring-no-properties
(progn (if (search-backward "\n" nil t)
(forward-char 1))
(point))
beg))
(list beg prefix suffix))
)
)
)
(defun allout-adjust-file-variable (varname value)
"Adjust the setting of an Emacs file variable named VARNAME to VALUE.
This activity is inhibited if either `enable-local-variables'
`allout-enable-file-variable-adjustment' are nil.
When enabled, an entry for the variable is created if not already present,
or changed if established with a different value. The section for the file
variables, itself, is created if not already present. When created, the
section lines (including the section line) exist as second-level topics in
a top-level topic at the end of the file.
`enable-local-variables' must be true for any of this to happen."
(if (not (and enable-local-variables
allout-enable-file-variable-adjustment))
nil
(save-excursion
(let ((inhibit-field-text-motion t)
(section-data (allout-file-vars-section-data))
beg prefix suffix)
(if section-data
(setq beg (car section-data)
prefix (cadr section-data)
suffix (car (cddr section-data)))
(goto-char (point-max))
(open-line 1)
(allout-open-topic 0)
(end-of-line)
(insert "Local emacs vars.\n")
(allout-open-topic 1)
(setq beg (point)
suffix ""
prefix (buffer-substring-no-properties (progn
(beginning-of-line)
(point))
beg))
(goto-char beg)
(insert "Local variables:\n")
(allout-open-topic 0)
(insert "End:\n")
)
(goto-char beg)
(allout-show-to-offshoot)
(if (search-forward (concat "\n" prefix varname ":") nil t)
(let* ((value-beg (point))
(line-end (progn (if (search-forward "\n" nil t)
(forward-char -1))
(point)))
(value-end (- line-end (length suffix))))
(if (> value-end value-beg)
(delete-region value-beg value-end)))
(end-of-line)
(open-line 1)
(forward-line 1)
(insert (concat prefix varname ":")))
(insert (format " %S%s" value suffix))
)
)
)
)
(defun allout-get-configvar-values (configvar-name)
"Return a list of values of the symbols in list bound to CONFIGVAR-NAME.
The user is prompted for removal of symbols that are unbound, and they
otherwise are ignored.
CONFIGVAR-NAME should be the name of the configuration variable,
not its value."
(let ((configvar-value (symbol-value configvar-name))
got)
(dolist (sym configvar-value)
(if (not (boundp sym))
(if (yes-or-no-p (format "%s entry `%s' is unbound - remove it? "
configvar-name sym))
(delq sym (symbol-value configvar-name)))
(push (symbol-value sym) got)))
(reverse got)))
(defun allout-mark-topic ()
"Put the region around topic currently containing point."
(interactive)
(let ((inhibit-field-text-motion t))
(beginning-of-line))
(allout-goto-prefix-doublechecked)
(push-mark (point))
(allout-end-of-current-subtree)
(exchange-point-and-mark))
(defun solicit-char-in-string (prompt string &optional do-defaulting)
"Solicit (with first arg PROMPT) choice of a character from string STRING.
Optional arg DO-DEFAULTING indicates to accept empty input (CR)."
(let ((new-prompt prompt)
got)
(while (not got)
(message "%s" new-prompt)
(setq got
(char-to-string (let ((cursor-in-echo-area nil)) (read-char))))
(setq got
(cond ((string-match (regexp-quote got) string) got)
((and do-defaulting (string= got "\r"))
"")
((string= got "\C-g") (signal 'quit nil))
(t
(setq new-prompt (concat prompt
got
" ...pick from: "
string
""))
nil))))
got)
)
(defun regexp-sans-escapes (regexp &optional successive-backslashes)
"Return a copy of REGEXP with all character escapes stripped out.
Representations of actual backslashes - '\\\\\\\\' - are left as a
single backslash.
Optional arg SUCCESSIVE-BACKSLASHES is used internally for recursion."
(if (string= regexp "")
""
(setq successive-backslashes
(if (= (aref regexp 0) ?\\)
(if successive-backslashes (1+ successive-backslashes) 1)
nil))
(if (or (not successive-backslashes) (= 2 successive-backslashes))
(concat (substring regexp 0 1)
(regexp-sans-escapes (substring regexp 1)))
(regexp-sans-escapes (substring regexp 1) successive-backslashes))))
(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 2)))
(setq count (1+ count)))
count))))
(defun allout-format-quote (string)
"Return a copy of string with all \"%\" characters doubled."
(apply 'concat
(mapcar (lambda (char) (if (= char ?%) "%%" (char-to-string char)))
string)))
(defun allout-flatten (list)
"Return a list of all atoms in list."
(cond ((null list) nil)
((atom (car list)) (cons (car list) (allout-flatten (cdr list))))
(t (append (allout-flatten (car list)) (allout-flatten (cdr list))))))
(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)))
(if (not (fboundp 'subst-char-in-string))
(defun subst-char-in-string (fromchar tochar string &optional inplace)
"Replace FROMCHAR with TOCHAR in STRING each time it occurs.
Unless optional argument INPLACE is non-nil, return a new string."
(let ((i (length string))
(newstr (if inplace string (copy-sequence string))))
(while (> i 0)
(setq i (1- i))
(if (eq (aref newstr i) fromchar)
(aset newstr i tochar)))
newstr)))
(if (not (fboundp 'wholenump))
(defalias 'wholenump 'natnump))
(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)
(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)))))))
)
(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)
(overlay-buffer o)))
(props (overlay-properties o)))
(while props
(overlay-put o1 (pop props) (pop props)))
o1)))
(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))))
(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)))))
(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."
(interactive "p")
(or arg (setq arg 1))
(if (/= arg 1)
(condition-case nil (line-move (1- arg)) (error nil)))
(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 (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."
(interactive "p")
(or arg (setq arg 1))
(let (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)))
(setq arg 1)
(setq done t)))))))
)
(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))))))
(defun allout-bullet-isearch (&optional bullet)
"Isearch (regexp) for topic with bullet BULLET."
(interactive)
(if (not bullet)
(setq bullet (solicit-char-in-string
"ISearch for topic with bullet: "
(regexp-sans-escapes allout-bullets-string))))
(let ((isearch-regexp t)
(isearch-string (concat "^"
allout-header-prefix
"[ \t]*"
bullet)))
(isearch-repeat 'forward)
(isearch-mode t)))
(defun allout-run-unit-tests ()
"Run the various allout unit tests."
(message "Running allout tests...")
(allout-test-resumptions)
(message "Running allout tests... Done.")
(sit-for .5))
(defun allout-tests-obliterate-variable (name)
"Completely unbind variable with NAME."
(if (local-variable-p name) (kill-local-variable name))
(while (boundp name) (makunbound name)))
(defvar allout-tests-globally-unbound nil
"Fodder for allout resumptions tests - defvar just for byte compiler.")
(defvar allout-tests-globally-true nil
"Fodder for allout resumptions tests - defvar just just for byte compiler.")
(defvar allout-tests-locally-true nil
"Fodder for allout resumptions tests - defvar just for byte compiler.")
(defun allout-test-resumptions ()
"Exercise allout resumptions."
(with-temp-buffer
(allout-tests-obliterate-variable 'allout-tests-globally-unbound)
(allout-add-resumptions '(allout-tests-globally-unbound t))
(assert (not (default-boundp 'allout-tests-globally-unbound)))
(assert (local-variable-p 'allout-tests-globally-unbound))
(assert (boundp 'allout-tests-globally-unbound))
(assert (equal allout-tests-globally-unbound t))
(allout-do-resumptions)
(assert (not (local-variable-p 'allout-tests-globally-unbound)))
(assert (not (boundp 'allout-tests-globally-unbound))))
(with-temp-buffer
(allout-tests-obliterate-variable 'allout-tests-globally-true)
(setq allout-tests-globally-true t)
(allout-add-resumptions '(allout-tests-globally-true nil))
(assert (equal (default-value 'allout-tests-globally-true) t))
(assert (local-variable-p 'allout-tests-globally-true))
(assert (equal allout-tests-globally-true nil))
(allout-do-resumptions)
(assert (not (local-variable-p 'allout-tests-globally-true)))
(assert (boundp 'allout-tests-globally-true))
(assert (equal allout-tests-globally-true t)))
(with-temp-buffer
(allout-tests-obliterate-variable 'allout-tests-locally-true)
(set (make-local-variable 'allout-tests-locally-true) t)
(assert (not (default-boundp 'allout-tests-locally-true))
nil (concat "Test setup mistake - variable supposed to"
" not have global binding, but it does."))
(assert (local-variable-p 'allout-tests-locally-true)
nil (concat "Test setup mistake - variable supposed to have"
" local binding, but it lacks one."))
(allout-add-resumptions '(allout-tests-locally-true nil))
(assert (not (default-boundp 'allout-tests-locally-true)))
(assert (local-variable-p 'allout-tests-locally-true))
(assert (equal allout-tests-locally-true nil))
(allout-do-resumptions)
(assert (boundp 'allout-tests-locally-true))
(assert (local-variable-p 'allout-tests-locally-true))
(assert (equal allout-tests-locally-true t))
(assert (not (default-boundp 'allout-tests-locally-true))))
(with-temp-buffer
(allout-tests-obliterate-variable 'allout-tests-globally-unbound)
(allout-tests-obliterate-variable 'allout-tests-globally-true)
(setq allout-tests-globally-true t)
(allout-tests-obliterate-variable 'allout-tests-locally-true)
(set (make-local-variable 'allout-tests-locally-true) t)
(allout-add-resumptions '(allout-tests-globally-unbound t)
'(allout-tests-globally-true nil)
'(allout-tests-locally-true nil))
(allout-add-resumptions '(allout-tests-globally-unbound 2)
'(allout-tests-globally-true 3)
'(allout-tests-locally-true 4))
(assert (not (default-boundp 'allout-tests-globally-unbound)))
(assert (local-variable-p 'allout-tests-globally-unbound))
(assert (equal allout-tests-globally-unbound 2))
(assert (default-boundp 'allout-tests-globally-true))
(assert (local-variable-p 'allout-tests-globally-true))
(assert (equal allout-tests-globally-true 3))
(assert (not (default-boundp 'allout-tests-locally-true)))
(assert (local-variable-p 'allout-tests-locally-true))
(assert (equal allout-tests-locally-true 4))
(allout-do-resumptions)
(assert (not (local-variable-p 'allout-tests-globally-unbound)))
(assert (not (boundp 'allout-tests-globally-unbound)))
(assert (not (local-variable-p 'allout-tests-globally-true)))
(assert (boundp 'allout-tests-globally-true))
(assert (equal allout-tests-globally-true t))
(assert (boundp 'allout-tests-locally-true))
(assert (local-variable-p 'allout-tests-locally-true))
(assert (equal allout-tests-locally-true t))
(assert (not (default-boundp 'allout-tests-locally-true))))
(with-temp-buffer
(allout-tests-obliterate-variable 'allout-tests-globally-unbound)
(allout-tests-obliterate-variable 'allout-tests-globally-true)
(setq allout-tests-globally-true t)
(allout-tests-obliterate-variable 'allout-tests-locally-true)
(set (make-local-variable 'allout-tests-locally-true) t)
(allout-add-resumptions '(allout-tests-globally-unbound t)
'(allout-tests-globally-true nil)
'(allout-tests-locally-true nil))
(allout-tests-obliterate-variable 'allout-tests-globally-unbound)
(allout-tests-obliterate-variable 'allout-tests-globally-true)
(allout-tests-obliterate-variable 'allout-tests-locally-true)
(allout-do-resumptions))
)
(when allout-run-unit-tests-on-load
(allout-run-unit-tests))
(provide 'allout)