* calendar/todos.el (todos-quit): If quitting
todos-filtered-items-mode makes todos-mode current, don't call
todos-show, which (here wrongly) prompts for a new Todos file.
(todos-delete-category): Fix incorrect quotation mark.
(todos-set-item-priority): Make prefix argument a no-op with
commands for raising or lowering item priority.  Move mistakenly
place right paren to end of defun, where it belongs.

* calendar/todos.el (todos-key-bindings): Add binding for `todos-show'.
(todos-show): Prompt for which todo file to visit when invoked
from Todos mode.

* calendar/todos.el: Item insertion and done/undo fixes.
(todos-insert-item): Maybe set the insertion file to
todos-global-current-todos-file.  When inserting into a file that
was not being visited on invoking this command, ensure chosen
category is properly selected.  Make item inserted "here" the
first todo item if the command was invoked with point in done
items section or outside of the current category.
(todos-item-done): When done items are shown, put cursor on first
just done item.
(todos-item-undo): Put cursor on undone item.

* calendar/todos.el: Improve handling of overlays.
(todos-get-overlay): New function.
(todos-prefix-overlay): Remove, since subsumed by
todos-get-overlay, and replace by the latter in callers.
(todos-reset-prefix): Apply only to buffer visiting Todos files.
Simplify implementation and use `todos' overlay property.
(todos-reset-done-separator): Use todos-get-overlay and `todos'
overlay property.  Fix logic.
(todos-category-select): Use todos-get-overlay and `todos' overlay
property.
(todos-remove-item): Use todos-get-overlay.  Correct obsolete code.
(todos-prefix-overlays): Use todos-top-priority face also for
non-numerical prefix of top priority items.  Add `todos' overlay
property.
(todos-hide-show-date-time): Simplify, using todos-get-overlay and
`todos' overlay property.

* calendar/todos.el (todos-edit-multiline, todos-edit-quit):
Revert buffer renaming.

* calendar/todos.el (todos-edit-quit): On quitting file editing,
rename buffer back to current Todos file.  After selecting
category, put point at top instead of recentering.

* calendar/todos.el (todos-edit-multiline-item): Revert to using
indirect buffer, which makes it easier to return to Todos mode.
(todos-edit-quit): Don't delete and reinsert items that don't need
indenting.  Revert to just killing buffer on quitting single item
editing.  On quitting file editing, select nearest category.

* calendar/todos.el: Bug fixes and improvements to item editing
and insertion.
(todos-check-format): Compare current value of todos-categories
with actual categories sexp.
(todos-repair-categories-sexp): Add warning to doc string about
category order getting restored to list element order.
(todos-mode-external-set): When todos-categories is nil, as in
Todos Edit mode, set it by reading actual categories sexp.
(todos-edit-mode): Make buffer writeable.
(todos-done-item-section-p): New function.
(todos-insert-item): Use it as part of preventing insertion here
in done items section.  Move check for display of done items only
to just before setting new item's priority, and if cancelled after
toggling to todo items, restore display of done items.
(todos-edit-multiline-item): Don't base on todos-edit-multiline
but just narrow and change mode.
(todos-edit-multiline): Don't make indirect buffer but just widen
and change mode; also remove overlays.
(todos-edit-quit): Restore Todos mode and category display; when
quitting multiline item editing, ensure items above edited item
are visible in window if possible.
(todos-done-item-add-edit-or-delete-comment): If user moved point
during editing, make sure it moves back to edited item before
returning.

* calendar/todos.el (todos-reset-done-separator-string):
Complete the implementation.
(todos-hide-show-done-items): If start of done items sections is
below the bottom of the window, make it visible.
(todos-insert-item): Allow inserting item here to work outside of
the current category, but then at top of category.  After checking
whether only done items are shown, restore point to ensure
inserting item here works correctly.
(todos-set-item-priority): Delete leftover right paren at end.

* calendar/todos.el: Bug fixes involving or displaying done items.
(todos-done-separator): Make length of long separator one less
than window-width, in order to avoid following empty line.
(todos-forward-item, todos-backward-item): Make empty line below
last todo item accessible only by invoking without a numerical
prefix argument and make the latter invocations move only to items.
(todos-insert-item): Set todos-current-todos-file after selecting
buffer, in order not to set global value.  If only done items are
shown when this command is invoked, toggle to show todo items to
avoid insertion into done items section.  When done items are
shown, protect from cancelling before setting item priority: this
also needs recentering to display all items.
(todos-set-item-priority): Only call on (not done) todo items.
Check that done items are visible not because file is widened.
Use only `any' argument of called-interactively-p.  Make sure that
giving an undone item lowest priority restores it to the todo
section.
(todos-item-done): If done items are visible on invoking this
command, keep them visible afterwards.  Stop looking for marked
items on reaching the empty line below the last todo item.

* calendar/todos.el: Several small fixes and improvements.
(todos-done-separator-string): Change default value.
(todos-update-categories-sexp): Remove unnecessary and misquided
setq of todos-default-todos-file.  Use delete-region instead of
kill-region to avoid polluting kill-ring.
(todos-unload-hook): Remove (was not used).
(todos-edit-multiline): Don't generate new edit buffer name on
each invocation---that can cause confusion due to indirect buffer.
(todos-edit-quit): Ensure lines in edit buffer that follow hard
newlines are indented in the file to conform to diary format.
(todos-set-item-priority): If done items in category are visible,
keep them visible.

* calendar/todos.el: Fix done separator overlay bug.  Remove most
FIXME comments.
(todos-reset-and-enable-done-separator): Remove commented out
workaround for done separator overlay bug; fix doc string.
(todos-reset-done-separator): Delete old overlay after adding new
overlay to fix done separator overlay bug; improve implementation.
(todos-prefix-overlays): Improve first line of doc string.

* calendar/todos.el: Improve item marking and handling of marked items.
(todos-prefix): Add validator to ensure value differs from that of
todos-item-mark.
(todos-item-mark): New defcustom.
(todos-prefix-overlay): New function.
(todos-marked-item-p): Use it.  Adapt implementation to new
handling of marked items.
(todos-insert-with-overlays): When inserting pushes down a marked
item, move its prefix overlay.
(todos-prefix-overlays): Add overlay even when prefix is empty string,
otherwise item marking fails.  Improve handling of marked items.
(todos-mark-unmark-item): Adapt to new handling of marked items
and simplify by removing marking of all items in category.
(todos-mark-category): Adapt to new handling of marked items and
don't use todos-mark-unmark-item.
(todos-unmark-category): Adapt to new handling of marked items.
(todos-delete-item): Remove obsolete handling of marked items and
useless restoration of point.
(todos-set-item-priority): Use new handling of marked items.
(todos-move-item, todos-item-done, todos-item-undo)
(todos-archive-done-item): Remove obsolete handling of marked items.

* calendar/todos.el: Improve definitions and use of some faces.
(todos-top-priority): Use current definition of font-lock-constant-face.
(todos-diary-expired): Make default value contrast more with
default value of todos-date face.
(todos-nondiary, todos-category-string): New faces.
(todos-nondiary-face, todos-category-string-face): Corresponding
new variables.
(todos-done, todos-comment): Switch default values to go better
with default value of todos-date face.
(todos-done-sep): Change default value.
(todos-category-string-matcher-1)
(todos-category-string-matcher-2): Improve doc string.
(todos-font-lock-keywords): Use todos-nondiary-face and
todos-category-string-face.
(todos-done-separator): Propertize string with todos-done-sep face.
(todos-filtered-items-mode): Fix typo.

* calendar/todos.el: Improve handling of saved top priorities items.
(todos-find-item): Find done items and items whose priority has
changed or whose text was truncated or augmented; add doc string.
(todos-check-top-priorities): Highlight each item that is not up
to date.
(todos-jump-to-item): Jump to items whose priority has changed or
whose text was truncated or augmented.

* calendar/todos.el: Revise handling of initial display and extend
to top priorities file.
(todos-display-categories-first): Remove, replacing by this:
(todos-show-first): New defcustom.
(todos-first-visit): Remove, replacing by this:
(todos-visited): New variable.
(todos-absolute-file-name): Extend possible values of optional
argument to take top priorities files into account.
(todos-modes-set-3, todos-mode): Remove use of todos-first-visit.
(todos-mode-external-set): Call find-file-noselect instead of
find-buffer-visiting, since the latter may fail.
(todos-show): Revise handling of initial display using
todos-show-first and todos-visited and extend to top priorities
file.
(todos-quit): Adapt to new handling of initial display.

* calendar/todos.el: Implement saving top priority items buffers,
improve implementation of item filtering commands and
infrastucture, and fix two bugs.
(todos-prefix-overlays): Use todos-top-priority face only in Todos
mode.
(todos-multiple-filter-files): Get file-truename of Todos file.
(todos-filter-items): Pass a list of files from the caller instead
of building it here, and move handling of cancelled file selection
dialog to callers.  Correct omission of file-wide default number
of top priorities.
(todos-filtered-buffer-name): Treat file-list argument only as a list.
(todos-find-item, todos-check-top-priorities)
(todos-top-priorities-filename)
(todos-save-top-priorities-buffer): New functions.
(todos-save): Use todos-save-top-priorities-buffer.
(todos-jump-to-item): Refactor and use todos-find-item.
(todos-top-priorities): Simplify semantics of prefix argument.
Check if top priorities file exists and if so, visit it, reporting
whether it is up to date.  Add optional argument and use it to
handle multiple files.
(todos-diary-items, todos-regexp-items): Add optional argument and
use it to handle multiple files.
(todos-top-priorities-multifile, todos-diary-items-multifile)
(todos-regexp-items-multifile): Refactor, using corresponding
non-multifile command.
(auto-mode-alist): Add pattern for top priorities files to visit
these in Todos Filtered Items mode.

* calendar/todos.el: Fix tabular alignment in Todos Categories mode.
(todos-adjusted-category-label-length): New function.
(todos-padded-string): Use it.

* calendar/todos.el (todos-move-item): Allow moving done items to
done section of another category.

* calendar/todos.el: Display numerical priority string of top
priority items in category in a distinctive face.
(todos-prefix-string): Make doc string more precise.
(todos-top-priority): New defface.
(todos-done, todos-done-sep): Use more compact face definition
\(taken from font-lock.el).
(todos-comment): Give a complete face definition, instead of
inheriting from todos-done.
(todos-font-lock-keywords): Use todos-comment-face for
todos-comment-string-matcher.
(todos-prefix-overlays): Use todos-top-priority as the face
property of top priority items; don't condition reapplying item
prefix overlay on whether the string changed, since that prevents
updating display after changing number of top priorities.
(todos-set-top-priorities): Call todos-prefix-overlays to update
display.

* calendar/todos.el (todos-reset-global-current-todos-file)
(todos-display-categories-1): Use absolute name of
todos-default-todos-file.

* calendar/todos.el (todos-insert-item): Fix copy and paste error
from previous change.

* calendar/todos.el: Implement extended category completions.
(todos-default-todos-file): Change default value to correct custom
type.
(todos-category-completions-files): New defcustom.
(todos-reevaluate-category-completions-files-defcustom)
(todos-absolute-file-name, todos-category-completions): New defuns.
(todos-reevaluate-filelist-defcustoms):
Add todos-category-completions-files and
todos-reevaluate-category-completions-files-defcustom.
(todos-allcats-file, todos-all-categories-alist)
(todos-jump-to-category-other-file, todos-jump-to-any-category)
(todos-move-item-to-file): Remove (todos-all-categories-alist both
as defvar and as defun).
(todos-read-category): Rewrite using extended category completions
and better handling of completion against existing or non-existing
categories.
(todos-validate-name): Correct doc string; use local instead of
dynamic variables in function body.
(todos-insert-category-line): Adjust use of todos-jump-to-category
to new argument list.
(todos-key-bindings, todos-menu): Delete entries for removed
commands.
(todos-show): Get absolute name of todos-default-todos-file;
add `nowarn' argument to find-file-noselect; adjust use of
todos-add-category to new argument list.
(todos-jump-to-category): Rewrite using extended category
completions; reverse argument list, adapting FILE argument to new
completion mechanism; add autoload cookie; call todos-show if
there are no Todos files.
(todos-add-category): Rewrite using extended category completions;
add FILE argument to accommodate new completion mechanism.
(todos-merge-category): Adapt to extended category completions,
adding prefix argument.
(todos-insert-item): Adapt to extended category completions; use
todos-read-category instead of todos-jump-to-category in prefix
argument calls; call todos-show if there are no Todos files; if
item is inserted at end of category, recenter to ensure the items
above it are displayed in the window.
(todos-move-item): Adapt to extended category completions, making
argument prefix argument; allow moving within category (for the
sake of code simplification); add `nowarn' argument to
find-file-noselect.
(todos-archive-done-item): Prevent error when attempting to
archive not-done todo item; adjust use of todos-add-category to
new argument list.

* calendar/todos.el (todos-archive-done-item): Fix archiving of
all done items in a category and resulting display of todo file.

* calendar/todos.el (todos-priorities-rules): Fix customization
type to prevent mismatch error.
(todos-set-top-priorities): Fix rule construction; fix input check;
improve prompt.

* calendar/todos.el (todos-insert-item): If user exits Calendar
before choosing a date, cancel item insertion.
(todos-set-date-from-calendar): If user exits Calendar before
choosing a date, clean up properly.

* calendar/todos.el: Extend and improve handling of item editing,
especially of date/time header.
(todos-month-name-array, todos-month-abbrev-array): New defconsts.
(todos-date-pattern): Use explicitly numbered groups.
(todos-read-date): Optionally read and return just one of the date
string components year, month or monthname, day.
(todos-key-bindings): Add bindings for new item header editing
commands.
(todos-edit-item): Exclude date/time header from minibuffer by
default; include it by passing a prefix argument.
(todos-edit-item-header-1): New function containing the guts of
the commands for editing item date/time headers.
(todos-edit-item-header): Use it.  Condition editing of time
string on value of `todos-always-add-time-string'.
(todos-edit-item-date-from-calendar): Use todos-edit-item-header-1.
(todos-edit-item-date-to-today): Rename from
todos-edit-item-date-is-today and use todos-edit-item-header-1.
(todos-edit-item-date): Remove.
(todos-edit-item-date-day-name, todos-edit-item-date-year)
(todos-edit-item-date-month, todos-edit-item-date-day): New commands.

* calendar/todos.el (todos-show): Fix a comment.
(todos-add-category): Prompt for a new category if passed category
is the empty string, not nil.

Fix regex searches for beginning of category.

* calendar/todos.el (todos-make-categories-list)
(todos-convert-legacy-files, todos-jump-to-item)
(todos-move-category, todos-merge-category)
(todos-archive-done-item, todos-unarchive-items): Include end of
line in regex searches for beginning of category, in order not to
get a category whose name contains the searched for category name.

* calendar/todos.el (todos-forward-category): Fix typo.

* calendar/todos.el (todos-define-insertion-command):
Let generated insertion commands accept a prefix argument.

* calendar/todos.el (todos-move-item): If user quits before
completing movement, restore display of initial category; If item
is moved to end of target category, make sure the items above it
are displayed in the window.

* calendar/todos.el: Fixes to todos-move-item and some of its
subroutines.
(todos-move-item): When there are marked items, point need not be
on an item; remove obsolete use of todos-add-category, since this
is now already done in todos-read-category; fix typo.
(todos-diary-item-p): Exclude empty lines.
(todos-read-category): Restore point and narrowing after adding
new category, to avoid moving to beginning of file when moving
marked items to a new category.
(todos-set-item-priority): Prompt for priority only when the
category has at least one todo item; only use non-nil priority to
calculate insertion location.
(todos-read-category): Don't reset todos-categories when a new
category is added due to todos-move-item or todos-jump-to-item.

* calendar/todos.el (todos-copy-item): New command.
(todos-insertion-map): Add key binding for it.

* calendar/todos.el (todos-undo-item-omit-comment): New defcustom.
(todos-item-undo): Use it.
(todos-allcats-file, todos-all-categories-alist): New variables.
(todos-all-categories-alist): New function.
(todos-jump-to-any-category): New command.
(todos-move-item): Remove mark overlays from buffer items were
moved from; update todos-categories-with-marks,

* calendar/todos.el: Further code rearrangement; further new and
revised comments.
(todos-reevaluate-filelist-defcustoms): Rename from
todos-reevaluate-defcustoms and adjust callers.
(todos-date-pattern, todos-nondiary-start, todos-nondiary-end)
(todos-date-string-start, todos-done-string-start)
(todos-item-start): Change from defvar to defconst.
(todos-set-top-priorities): Use read-number and simplify.
(todos-insert-item): Check whether date-type argument is a string.
(todos-set-date-from-calendar): Check whether
todos-date-from-calendar is a string; simplify cond clause.
(todos-archive-done-item, todos-unarchive-items):
Use buffer-substring-no-properties.

* calendar/todos.el (todos-item-undo): Fix restoration on
cancelling; use buffer-substring-no-properties; comment out code
removing mark overlay; fix insertion of undone items; display any
remaining done items.

* calendar/todos.el: Further significant code rearrangement;
further comment revision.
(todos-mode-display): New defgroup.
(todos-prefix, todos-number-priorities)
(todos-done-separator-string, todos-done-string)
(todos-comment-string, todos-show-with-done)
(todos-mode-line-function, todos-skip-archived-categories)
(todos-highlight-item, todos-wrap-lines)
(todos-line-wrapping-function): Use it.
(todos-item-insertion): New defgroup.
(todos-include-in-diary, todos-diary-nonmarking)
(todos-nondiary-marker, todos-always-add-time-string)
(todos-use-only-highlighted-region): Use it.
(todos-forward-button, todos-backward-button): New commands.
(todos-categories-mode-map): Use them, replacing forward-button
and backward-button.
(todos-merge-category): Fix and improve implementation; handle
archived items.
(todos-insert-item, todos-set-date-from-calendar): Handle setting
date by calling todos-insert-item-from-calendar.
(todos-delete-item): Fix overlay handling.
(todos-move-item): Highlight item to be moved.
(todos-item-undo): Handle marked items.
(todos-insert-item-from-calendar): Rewrite using
todos-date-from-calendar.

* calendar/todos.el: Further comment revision.
(todos-sorted-column): Change default value, also taking tty into
account.
(todos-reset-done-separator): Fix faulty variable binding.
(todos-reset-and-enable-done-separator): Save match data; comment
out code that causes problems for Edebug.
(todos-item-start): Handle empty line between todo and done items
when done items are hidden.
(todos-read-date): Use a leap year for `*' to allow
calendar-last-day-of-month to return Feb. 29.
(todos-archive-mode, todos-edit-mode, todos-categories-mode)
(todos-filtered-items-mode): Delete faulty parentheses.
(todos-quit): Save Todos and archive files unconditionally.
(todos-forward-item): Accept only positive prefix argument.
(todos-backward-item): Accept only positive prefix argument; don't
move point to beginning of buffer if it is on the first item.
(todos-hide-show-date-time): Remove obsolete interactive spec.
(todos-move-category): Improve prompt string; ensure file moved to
is different from file moved from.
(todos-merge-categories): Remove.
(todos-set-category-priority): New command.
(todos-raise-category-priority, todos-lower-category-priority):
Use it to define these commands.
(todos-set-item-priority): Rewrite and generalize.
(todos-raise-item-priority, todos-lower-item-priority): Use it to
define these commands.

* calendar/todos.el (todos-reset-done-separator)
(todos-reset-and-enable-done-separator): New functions.
(todos-reset-done-separator-string): Rewrite using
todos-reset-done-separator for string longer than 1 character.
(todos-mode): Add todos-reset-and-enable-done-separator to
window-configuration-change-hook, replacing previous anonymous
function.
(todos-unload-hook): And remove it.

* calendar/todos.el (todos-done-separator-string): New defcustom.
(todos-done-separator): New variable replacing defcustom of the
same name.
(todos-reset-done-separator-string, todos-done-separator):
New functions.
(todos-mode): Make function added to
window-configuration-change-hook do a better job of updating the
done items separator string overlay.
(todos-unload-hook): Remove it here.
(todos-item-undo): Fix search for item's end.

* calendar/todos.el: Further comment revision.
(todos-sorted-column): Change default value.
(todos-item-start): Handle empty category (needed in
todos-filter-items).
(todos-read-date): Don't use calendar-read; make code cleaner.
(todos-multiple-filter-files): Rename this variable from
todos-multiple-files and adjust users.
(todos-multiple-filter-files-widget): Rename from
todos-multiple-files-widget and adjust users.
(todos-multiple-filter-files): Rename this function from
todos-multiple-files and adjust callers.
(todos-filter-items): Remove unused code.
(todos-insert-category-line): Add space so highlighting of last
column is consistent with the others; adjust display of column
highlighting.
(todos-menu): Remove obsolete entry.
(todos-categories-mode-map): Add new bindings.
(todos-display-categories-alphabetically-or-by-priority): New command.
(todos-display-categories-sorted-by-todo)
(todos-display-categories-sorted-by-diary)
(todos-display-categories-sorted-by-done)
(todos-display-categories-sorted-by-archived): Restore and fix
implementation.

* calendar/todos.el: Significant code rearrangement; further
comment revision.
(todos-filtered-items-buffer): Rename from todos-filter-buffer and
adjust users.
(todos-filtered-buffer-name): Rename from
todos-special-buffer-name and adjust users.
(todos-filtered-items-mode-map): Rename from
todos-filter-items-mode-map and adjust users.
(todos-mode-external-set): Use todos-categories instead of
todos-set-categories (and add comment to check if this DTRT).
(todos-filtered-items-mode): Rename from todos-filter-items-mode
and adjust users.
(todos-add-category): Don't call todos-validate-name, since
todos-read-category does.
(todos-edit-quit): Use todos-repair-categories-sexp.
(todos-done-item-add-edit-or-delete-comment): Rename from
todos-done-item-add-or-edit-comment and adjust users; add optional
argument to prompt to delete comment.
(todos-item-undo): Delete done item comment on undoing if user
confirms.

* calendar/todos.el: Further code rearrangement and comment
revision.
(todos-item-start): Handle empty line between todo and done items
when done items are displayed.
(todos-key-bindings): Comment out bindings meant only for
todos-archive-mode.
(todos-archive-mode-map): Fix typo.
(todos-archive-mode): Derive from special-mode instead of
todos-mode to prevent its key bindings from being available here.
(todos-archive-done-item): Remove obsolete code; fix item count
updating.
(todos-unarchive-items): Simplify; fix unarchiving of all items in
category; fix item count updating; fix typo.

* calendar/todos.el: Further code rearrangement and comment
revision.
(todos-add-to-buffer-list, todos-update-buffer-list): New functions.
(todos-file-buffers): New variable.
(todos-reset-global-current-todos-file): Use it to simplify
implementation of this function.
(todos-filtered): New defgroup.
(todos-filter-buffer, todos-top-priorities-buffer)
(todos-diary-items-buffer, todos-regexp-items-buffer)
(todos-priorities-rules, todos-show-priorities)
(todos-filter-files, todos-filter-done-items): Use it.
(todos-skip-archived-categories): Rename from
todos-ignore-archived-categories and adjust users.
(todos-display-as-todos-file): Rename from todos-after-find-file
and adjust callers.
(todos-reset-highlight-item, todos-mode-external-set)
(todos-jump-to-category, todos-jump-to-item)
(todos-raise-category-priority, todos-insert-item)
(todos-move-item): Use find-file-visiting.
(todos-make-categories-list): Use file-truename.
(todos-display-categories-1): Adjust title text for archive files;
use done label for item counts in archive files.
(todos-modes-set-3): Add todos-display-as-todos-file to
find-file-hook.
(todos-mode): Add todos-add-to-buffer-list to find-file-hook and
todos-update-buffer-list post-command-hook.
(todos-unload-hook): And remove them.
(todos-show): Only when interactively invoked from an archive,
switch to corresponding Todos file.
(todos-archive-done-item): Remove obsolete code; fix handling of
marked items; fix search for existing category; check whether
archive exists and write to file if not; improve display handling.

* calendar/todos.el: Further comment revision.
(todos-item-end): Replace use of command todos-forward-item by
regexp searches using internal variables.
(todos-raise-category-priority): Improve and comment.
(todos-insert-item): Fix insertion of empty time string.

* calendar/todos.el (todos-ignore-archived-categories):
Revert last change; remove :initialize and :set functions; change
use and change users accordingly.
(todos-reset-categories, todos-categories-full)
(todos-truncate-categories-list): Remove.
(todos-set-categories, todos-update-categories-sexp):
Use todos-categories instead of todos-categories-full; remove use
of todos-ignore-archived-categories and
todos-truncate-categories-list.
(todos-check-format, todos-repair-categories-sexp):
Use todos-categories instead of todos-categories-full.
(todos-read-category): Improve last change.
(todos-validate-name): Use completing-read.
(todos-categories-category-number): Rename from
todos-category-number and adjust users.
(todos-update-categories-display, todos-mode-external-set)
(todos-delete-category, todos-move-category, todos-merge-category)
(todos-unarchive-items): Remove use of todos-categories-full and
todos-ignore-archived-categories.
(todos-modes-set-3, todos-add-category): Remove use of
todos-categories-full.
(todos-edit-mode): Fix typo.
(todos-forward-category): Use todos-ignore-archived-categories.

* calendar/todos.el: Doubts about todos-ignore-archived-categories.
(todos-ignore-archived-categories): Change default value.

* calendar/todos.el: Further comment revision.
(todos-reset-global-current-todos-file):
Try to make this not slow down kill-buffer.
(todos-update-categories-sexp): Handle the case where there is no
categories sexp yet, i.e. after inserting the first item in the
file, so todos-display-categories works.
(todos-read-file-name): Improve implementation.
(todos-validate-name): Use variable todos-files.
(todos-category-number): New variable.
(todos-insert-category-line, todos-update-categories-display)
(todos-raise-category-priority): Use it.
(todos-add-file): Remove unused remnant code.

* calendar/todos.el: Further comment revision.
(todos-set-item-top-priority): New command.
(todos-reset-global-current-todos-file):
Use todos-files-function instead of todos-files.
(todos-read-category): Add optional argument to test whether
caller adds new category; if so, don't prompt for new category and
don't restore original todos-categories list.
(todos-categories-mode-map): Update to renamed commands.
(todos-filter-items-mode-map): Add binding for new command.
(todos-mode): Fix typo.
(todos-show): If called from archive file, show corresponding
category in Todos file, if it exists.
(todos-jump-to-category): Remove code to add new category, since
todos-read-category can do that.
(todos-add-file): Remove obsolete code; visit new file in selected
window.
(todos-add-category): Simplify.
(todos-rename-category): Use force-mode-line-update instead of
setting mode-line-buffer-identification.
(todos-delete-category): Improve logic of prompts; use
todos-categories-full and check todos-ignore-archived-categories.
(todos-raise-category-priority, todos-lower-category-priority):
Rename from todos-{raise,lower}-category and adjust callers.
(todos-move-category, todos-merge-category):
Set todos-categories-full; on setting todos-categories check
todos-ignore-archived-categories.
(todos-insert-item): Let-bind use-empty-active-region and use
use-region-p instead of transient-mark-mode.
(todos-raise-item-priority): Improve implementation.
(todos-archive-done-item): Rename from
todos-archive-done-item-or-items and adjust callers; confine to
Todos mode.
(todos-unarchive-items): On setting todos-categories check
todos-ignore-archived-categories.

* calendar/todos.el (todos-key-bindings): Remove binding of
deleted command.
(todos-menu): Remove entry of deleted command.
(todos-show-archive): Fix last change.
(todos-done-item-add-or-edit-comment): Rename from
todos-comment-done-item and adjust callers; prompt to edit an
existing comment.

* calendar/todos.el: (todos-set-show-current-file): Rename from
todos-toggle-show-current-file and adjust callers.
(todos-number-priorities): Rename from todos-number-prefix and
adjust users.
(todos-update-count): Rename from todos-set-count and adjust
callers.
(todos-hide-show-item-numbering): Rename from
todos-toggle-item-numbering and adjust callers.
(todos-hide-show-done-items): Rename from
todos-toggle-view-done-items and adjust callers.
(todos-show-done-only): Rename from todos-toggle-show-done-only.
(todos-view-archived-items): Comment out.
(todos-show-archive): Prompt to choose another archive file if
current Todos file lacks an archive; prompt to visit archive
anyway when current category has no archived items.

* calendar/todos.el: Further comment revision and code
rearrangement.
(todos-item-end): Revert last change.
(todos-key-bindings, todos-menu, todos-archive-mode-map)
(todos-filter-items-mode-map): Use renamed commands.
(todos-hide-show-date-time): Rename from
todos-toggle-display-date-time.
(todos-mark-unmark-item): Rename from todos-toggle-mark-item and
adjust caller.
(todos-backward-item): Exempt special handling only from
todos-regexp-items-buffer instead of todos-filter-items-mode.
(todos-raise-item-priority): Don't allow item reprioritizing in
Todos filter items mode except for top priority items.

* calendar/todos.el: Add and revise further doc strings and
comments.
(todos-filter-function, todos-custom-items)
(todos-custom-items-multifile): Remove.
(todos-filter-done-items): New defcustom.
(todos-item-end, todos-backward-item): Handle todos-filter-items-mode.
(todos-filter-items): Check return value of caller first; tag
archived items for todos-jump-to-item; delete categories sexp
before processing filter; check todos-filter-done-items for
whether to leave done items; remove custom filter; fix regexp for
file and category tags; don't invoke buffer fontification.
(powerset-recursive): Fix typo.
(todos-key-bindings): Remove unused bindings.
(todos-top-priorities-multifile, todos-diary-items-multifile)
(todos-regexp-items-multifile): Use variable todos-multiple-files.
(todos-jump-to-item): Fix regexp; handle archive tags; take
todos-filter-done-items into account.
(todos-insert-item-from-calendar): Relocate to end of file
together with key-binding as addition to calendar.el.

* calendar/todos.el Add and revise further doc strings and
comments; major code rearrangement.
(todos-merged-files, todos-prompt-merged-files)
(todos-print-priorities, todos-tmp-buffer-name)
(todos-top-priorities-widgets, todos-update-merged-files)
(todos-merged-top-priorities, todos-merged-diary-items)
(todos-merged-regexp-items, todos-merged-custom-items)
(todos-raw-mode, todos-change-default-file)
(todos-toggle-diary-inclusion, todos-toggle-item-diary-nonmarking)
(todos-toggle-diary-nonmarking, todos-validate-category-name):
Remove.
(todos-category-string-matcher): Comment out.
(todos-categories): New defgroup.
(todos-initial-file, todos-filter-buffer)
(todos-top-priorities-buffer, todos-categories-category-label)
(todos-diary-items-buffer, todos-regexp-items-buffer)
(todos-custom-items-buffer, todos-filter-files)
(todos-highlight-item, todos-todo-mode-date-time-regexp):
New defcustoms.
(todos-diary-expired): New face.
(todos-print-buffer, todos-multiple-files)
(todos-multiple-files-widget, todos-key-bindings): New variables.
(todos-short-file-name, todos-reevaluate-default-file-defcustom)
(todos-special-buffer-name)
(todos-reevaluate-filter-files-defcustom)
(todos-reset-highlight-item, todos-reevaluate-defcustoms)
(todos-nondiary-marker-matcher, todos-diary-nonmarking-matcher)
(todos-diary-expired-matcher, todos-category-string-matcher-1)
(todos-category-string-matcher-2, todos-repair-categories-sexp)
(todos-validate-name, todos-multiple-files)
(todos-display-categories-1, todos-update-categories-display)
(todos-modes-set-3, todos-mode-external-set): New functions.
(todos-set-top-priorities-in-file)
(todos-set-top-priorities-in-category)
(todos-top-priorities-multifile, todos-diary-items-multifile)
(todos-regexp-items-multifile, todos-custom-items-multifile)
(todos-convert-legacy-files, todos-jump-to-item)
(todos-edit-multiline-item, todos-edit-item-date-from-calendar)
(todos-edit-item-diary-inclusion)
(todos-edit-category-diary-inclusion)
(todos-edit-item-diary-nonmarking)
(todos-edit-category-diary-nonmarking): New commands.
(todos, todos-faces): Update :version.
(todos-done-separator, todos-completion-ignore-case):
Change default value.
(todos-done-separator): Change :set function.
(todos-indent-to-here): Add :validate function to :type.
(todos-prefix-string, todos-mark, todos-button)
(todos-sorted-column, todos-archived-only, todos-search)
(todos-done, todos-done-sep): Provide full face definitions
instead of inheriting.
(todos-edit-buffer, todos-categories-buffer): Change from
defcustom to defvar.
(todos-category-beg, todos-category-done): Change from defvar to
defconst.
(todos-files): Check if todos-files-directory exists.
(todos-default-todos-file, todos-mode-line-control, todos-print):
Use todos-short-file-name.
(todos-font-lock-keywords): Use todos-nondiary-marker-matcher,
todos-diary-nonmarking-matcher, todos-category-string-matcher-1,
todos-category-string-matcher-2, todos-diary-expired-matcher.
(todos-category-select): Use todos-done-string-start, and
condition search on todos-show-with-done; don't make display
overlay for done items separator string if there already is one;
use todos-highlight-item, require hl-line and activate
hl-line-mode here in order to avoid a hang if done in todos-mode
or the mode hook.
(todos-update-categories-sexp): Use todos-categories-full if set,
otherwise todos-categories.
(todos-make-categories-list): Don't test for archive file when
processing a legacy todo-mode file.
(todos-check-format): Add check for todos-categories sexp.
(todos-diary-item-p): Use todos-nondiary-start instead of
todos-date-pattern.
(todos-marked-item-p): Rename from todos-item-marked-p.
(todos-read-file-name): Don't accept empty name; validate.
(todos-read-category): Validate new name before prompting whether
to add new category; force quit if user answers no.
(todos-filter-items): Improve implementation.
(todos-set-top-priorities): Rewrite as a noninteractive function
using minibuffer input instead of widgets.
(todos-insert-sort-button): Call todos-display-sorted with
argument nil to display categories in numerical order, instead of
calling todos-display-categories.
(powerset-recursive): Borrow and slightly reformulate the (GDFL'd)
Common Lisp powerset function at
http://rosettacode.org/wiki/Power_set#Common_Lisp.
(powerset-bitwise): Implement in Emacs Lisp the (GDFL'd) C
powerset function at http://rosettacode.org/wiki/Power_set#C.
(todos-powerset): Defalias to powerset-bitwise.
(todos-mode-map): Generate from todos-key-bindings instead of
listing each key definition.
(todos-categories-mode-map): Add two bindings.
(todos-filter-items-mode-map): Add some bindings, remove others.
(todos-mode): Derive from special-mode; use todos-modes-set-3; add
function setting todos-done-separator to
window-configuration-change-hook.
(todos-unload-hook): Remove function setting todos-done-separator
from window-configuration-change-hook.
(todos-archive-mode): Derive from todos-mode; use todos-modes-set-3.
(todos-edit-mode): Derive from text-mode; use todos-mode-external-set.
(todos-categories-mode): Derive from special-mode; use
todos-mode-external-set.
(todos-filter-items-mode): Derive from special-mode.
(todos-quit): Save archive file if it hasn't yet been saved.
(todos-display-categories): Delegate all functionality to
todos-display-categories-1 and todos-update-categories-display.
(todos-toggle-view-done-items): Improve implementation.
(todos-highlight-item): Require hl-line.
(todos-toggle-display-date-time): Remove argument and make it
apply only to whole file.
(todos-top-priorities, todos-diary-items, todos-regexp-items)
(todos-custom-items): Use todos-special-buffer-name.
(todos-add-file): Use todos-short-file-name and
todos-reevaluate-defcustoms; remove validation, since it's now
done in todos-read-file-name.
(todos-add-category): Also update todos-categories-full if non-nil.
(todos-delete-category): Delete file after confirmation if only
category is deleted.
(todos-move-category): Use todos-short-file-name and
todos-reevaluate-defcustoms.
(todos-insert-item): Fix getting date from the calendar and
insertion of time string.
(todos-set-date-from-calendar): Enter calendar buffer, suppressing
display of diary entries.
(todos-edit-multiline): Add optional argument to restrict editing
buffer to current item, otherwise make entire buffer (i.e. whole
file) editable.
(todos-edit-quit): When whole file is editable, check file format
validity before killing buffer, and if valid, recalculate
categories sexp to be safe.
(todos-edit-item-header): Allow choosing date from calendar.
(todos-item-done): Handle marked items.

* calendar/todos.el (todos-item-start): Restore commented out code
to prevent wrongly moving point in widened buffer.

* calendar/todos.el: Remove old commentary from todo-mode.el; add
and revise further doc strings and comments; require cl.el at
compile time for remove-duplicates; use function powerset from
http://rosettacode.org/wiki/Power_set#Common_Lisp (GFDL); further
code rearrangement.  Add adapted version of diary-goto-entry as comment.
(todos-file-top, todos-archived-categories-buffer)
(todos-save-top-priorities-too, todos-toggle-item-diary-inclusion)
(todos-save-top-priorities, todos-reset-separator)
(todos-switch-todos-file, todos-item-string-start, todos-counts)
(todos-string-count-lines, todos-string-multiline-p)
(todos-display-categories-alphabetically): Remove.
(todos-insert-item-ask-date, todos-insert-item-ask-date-time)
(todos-insert-item-ask-date-time-for-diary)
(todos-insert-item-ask-date-time-for-diary-here)
(todos-insert-item-ask-date-time-here)
(todos-insert-item-ask-date-maybe-notime)
(todos-insert-item-ask-date-maybe-notime-for-diary)
(todos-insert-item-ask-date-maybe-notime-for-diary-here)
(todos-insert-item-ask-date-maybe-notime-here)
(todos-insert-item-ask-date-for-diary)
(todos-insert-item-ask-date-for-diary-here)
(todos-insert-item-ask-date-here, todos-insert-item-ask-dayname)
(todos-insert-item-ask-dayname-time)
(todos-insert-item-ask-dayname-time-for-diary)
(todos-insert-item-ask-dayname-time-for-diary-here)
(todos-insert-item-ask-dayname-time-here)
(todos-insert-item-ask-dayname-maybe-notime)
(todos-insert-item-ask-dayname-maybe-notime-for-diary)
(todos-insert-item-ask-dayname-maybe-notime-for-diary-here)
(todos-insert-item-ask-dayname-maybe-notime-here)
(todos-insert-item-ask-dayname-for-diary)
(todos-insert-item-ask-dayname-for-diary-here)
(todos-insert-item-ask-dayname-here, todos-insert-item-ask-time)
(todos-insert-item-ask-time-for-diary)
(todos-insert-item-ask-time-for-diary-here)
(todos-insert-item-ask-time-here)
(todos-insert-item-maybe-notime)
(todos-insert-item-maybe-notime-for-diary)
(todos-insert-item-maybe-notime-for-diary-here)
(todos-insert-item-maybe-notime-here)
(todos-insert-item-for-diary, todos-insert-item-for-diary-here)
(todos-insert-item-here): Remove; all of these are now generated
on loading (some with the same name, most with other names.)
(todos-item-counts, todos-display-categories-alphabetically)
(todos-display-categories-sorted-by-todo)
(todos-display-categories-sorted-by-diary)
(todos-display-categories-sorted-by-done)
(todos-display-categories-sorted-by-archived): Comment out.
(todos-comment-string, todos-mode-line-function)
(todos-filter-function, todos-priorities-rules)
(todos-visit-files-commands, todos-categories-totals-label)
(todos-use-only-highlighted-region, todos-diary-nonmarking):
New defcustoms.
(todos-mark, todos-comment): New faces.
(todos-comment-face): Corresponding new variable.
(todos-categories-full, todos-global-current-todos-file)
(todos-first-visit, todos-insertion-commands-args-genlist)
(todos-insertion-commands-args, todos-insertion-commands-names)
(todos-insertion-commands, todos-insertion-commands-arg-key-list)
(todos-top-priorities-widgets, todos-date-from-calendar)
(todos-item-mark, todos-categories-with-marks): New variables.
(todos-mode-line-control, todos-reset-global-current-todos-file)
(todos-gen-arglists, todos-insertion-command-name)
(todos-insertion-key-bindings, todos-unload-hook)
(todos-filter-items, todos-set-date-from-calendar)
(todos-comment-string-matcher, todos-after-find-file)
(todos-reset-nondiary-marker, todos-reset-done-string)
(todos-reset-comment-string, todos-show-current-file)
(todos-item-marked-p, todos-total-item-counts): New functions.
(todos-define-insertion-command): New macro.
(todos-toggle-mark-item, todos-mark-category)
(todos-unmark-category, todos-set-top-priorities)
(todos-merged-diary-items, todos-regexp-items)
(todos-merged-regexp-items, todos-custom-items)
(todos-merged-custom-items, todos-comment-done-item)
(todos-archive-category-done-items, todos-unarchive-items)
(todos-print-to-file): New commands.
(todos-done-separator): Change :set function.
(todos-done-string): Uncomment :initialize and :set functions.
(todos-files): Use file-truename.
(todos-show-current-file): Rename from
todos-auto-switch-todos-file and change :set function accordingly.
(todos-font-lock-keywords): Use todos-comment-string-matcher;
change names of other matcher functions to new *-matcher.
(todos-category-number): Change initial value.
(todos-insertion-map): Use todos-insertion-key-bindings to
generate key definitions.
(todos-mode-map): Don't suppress digit keys, so they can supply
prefix arguments; add new and change some existing bindings.
(todos-archive-mode-map): Change a key binding.
(todos-categories-mode-map): Comment out a key binding.
(todos-filter-items-mode-map): Rename from
todos-top-priorities-mode-map.
(todos-mode): Make todos-current-todos-file,
todos-categories-full, todos-categories, todos-first-visit,
todos-category-number, todos-show-done-only,
todos-categories-with-marks local variables and set them; add
todos-show-current-file to pre-command-hook, todos-after-find-file
to post-command-hook and todos-reset-global-current-todos-file to
kill-buffer-hook.
(todos-archive-mode): Make todos-current-todos-file,
todos-categories and todos-category-number local variables and set
them; add todos-after-find-file to post-command-hook.
(todos-raw-mode): New derived major mode.
(todos-categories-mode): Don't set font-lock-defaults and
buffer-read-only; make todos-current-todos-file and
todos-categories local variables and set them.
(todos-filter-items-mode): Rename from todos-top-priorities-mode-map.
(todos-quit): Don't reset todos-categories on quitting
todos-categories-mode; handle quitting todos-filter-items-mode.
(todos-show): Simplify; when visiting an archive file switch to
corresponding Todos file; use todos-first-visit.
(todos-view-archived-items): Simplify; call todos-category-number.
(todos-show-archive): Rename from todos-switch-to-archive and
adjust callers; simplify.
(todos-toggle-display-date-time): Add optional argument to toggle
display in entire file.
(todos-top-priorities): Use todos-filter-items, which now contains
the previous core of this command.
(todos-merged-top-priorities, todos-diary-items):
Use todos-filter-items.
(todos-forward-category): Add optional argument to go to the
previous category.
(todos-backward-category): Use todos-forward-category.
(todos-jump-to-category): Refine implementation.
(todos-forward-item, todos-backward-item): Fix movement from todo
to done item and vice versa.
(todos-add-file): Remove argument and simplify.
(todos-rename-category): Use todos-current-todos-file and
todos-mode-line-function; set todos-categories with
todos-set-categories.
(todos-delete-category): Ask what to do if category has archived items.
(todos-raise-category): Ensure modified todos-categories is added
to file's categories sexp.
(todos-move-category): Improve implementation, especially handling
of archived categories.
(todos-merge-category): Tweak; set item counts.
(todos-insert-item): Improve handling of various argument values;
add new argument values to control marking of diary items and to
use region for item body.
(todos-insert-item-from-calendar): Use todos-global-current-todos-file.
(todos-delete-item, todos-edit-item-header): Handle marked items.
(todos-edit-item): Incorporate functionality of removed
todos-string-multiline-p.
(todos-edit-multiline): Use set-window-buffer instead of
switch-to-buffer.
(todos-edit-quit): Don't save on quitting; use todos-show instead
of todos-category-select.
(todos-raise-item-priority): Add argument to lower priority;
improve handling of top priority items in todos-filter-items-mode;
restore marks.
(todos-lower-item-priority): Use todos-raise-item-priority.
(todos-set-item-priority): Increment maximum number if item is new.
(todos-move-item): Handle marked items; delay changing category
moved from till after movement to avoid restoring if user cancels
before insertion.
(todos-item-done): Add optional argument to insert comment; fix
item counts and update sexp.
(todos-item-undo): Fix item counts and update.
(todos-archive-done-item-or-items): Rename from
todos-archive-done-items; add optional argument to archive all
items in category; handle marked items.
(todos-unarchive-category): Use todos-unarchive-items.
(todos-toggle-diary-inclusion): Incorporate functionality of
removed todos-toggle-item-diary-inclusion; handle marked items.
(todos-print): Add optional argument to print to file.
(todos-done-string-start): Don't use todos-nondiary-start.
(todos-date-string-matcher, todos-time-string-matcher)
(todos-done-string-matcher, todos-category-string-matcher): Rename
from *-match and adjust callers.
(todos-wrap-and-indent): Use set instead of setq for local variables.
(todos-prefix-overlays): Improve overlay handling.
(todos-reset-categories): Fix and complete implementation.
(todos-toggle-show-current-file): Rename from
todos-toggle-switch-todos-file-noninteractively.
(todos-category-select): Use todos-mode-line-function.
(todos-item-start): Comment out code used by removed function.
(todos-remove-item): Handle presence of both prefix/number and
mark overlays.
(todos-get-count): Simplify.
(todos-set-count): Change argument list and adjust callers; simplify.
(todos-set-categories): Handle new archive files; use
todos-categories-full and todos-ignore-archived-categories.
(todos-truncate-categories-list): Use todos-categories-full.
(todos-update-categories-sexp): Use kill-region instead of
kill-line; use todos-categories-full.
(todos-read-file-name): Add argument to require existing file and
adjust callers; use file-truename.
(todos-read-category): Remove argument to require existing
category and delegate it to completing-read in function body.
(todos-validate-category-name): Make empty string prompt only for
initial category name.
(todos-read-date): Use = instead of eq for testing if month = 13,
and if it is, set monthname to *.
(todos-display-categories): Use todos-global-current-todos-file;
use set-window-buffer instead of switch-to-buffer; add a line
showing item count totals.
(todos-padded-string): Use the longest of category name or label.
(todos-descending-counts): Rename from
todos-descending-counts-store and adjust users.
(todos-insert-category-line): Adjust format; use mapconcat; kill
buffer after jumping to category.

* calendar/todos.el Add and revise various doc strings, remove
further commented out code; add further comments; further code
rearrangement.
(todos-file-do, todos-archive-file, todos-mode-hook)
(todos-edit-mode-hook, todos-exclusion-start, todos-exclusion-end)
(todos-view-archive, todos-search-string)
(todos-jump-to-category-noninteractively, todos-initial-setup):
Remove.
(todos-files): Remove this defcustom.
(todos-initial-category, todos-display-categories-first)
(todos-auto-switch-todos-file, todos-default-todos-file)
(todos-categories-category-label, todos-categories-todo-label)
(todos-categories-diary-label, todos-categories-done-label)
(todos-categories-archived-label)
(todos-categories-number-separator, todos-categories-align)
(todos-ignore-archived-categories, todos-nondiary-marker):
New defcustoms.
(todos-prefix, todos-done-separator, todos-file-top)
(todos-categories-buffer, todos-archived-categories-buffer)
(todos-edit-buffer, todos-always-add-time-string, todos-button):
Change default value.
(todos-done-string): Add todos-reset-done-string as :set function,
but keep this commented out.
(todos-files, todos-archives, todos-insertion-map)
(todos-category-done, todos-nondiary-start, todos-nondiary-end)
(todos-show-done-only, todos-date-string-start)
(todos-done-string-start): New variables.
(todos-files-directory, todos-files-function, todos-merged-files)
(todos-prompt-merged-files, todos-files, todos-modes-set-1)
(todos-modes-set-2, todos-reset-done-string, todos-reset-categories)
(todos-toggle-switch-todos-file-noninteractively)
(todos-switch-todos-file, todos-counts, todos-get-count)
(todos-set-count, todos-set-categories)
(todos-truncate-categories-list, todos-update-categories-sexp)
(todos-read-file-name, todos-sort, todos-display-sorted)
(todos-label-to-key, todos-insert-sort-button): New functions.
(todos-display-categories-sorted-by-todo)
(todos-display-categories-sorted-by-diary)
(todos-display-categories-sorted-by-done)
(todos-display-categories-sorted-by-archived)
(todos-update-merged-files, todos-switch-to-archive)
(todos-choose-archive, todos-merged-top-priorities)
(todos-jump-to-category-other-file, todos-clear-matches)
(todos-add-file, todos-change-default-file, todos-move-category)
(todos-merge-category, todos-merge-categories)
(todos-edit-item-time, todos-move-item-to-file)
(todos-unarchive-category, todos-toggle-item-diary-nonmarking)
(todos-toggle-diary-nonmarking): New commands.
(todos-toggle-show-done-only): New command replacing todos-view-archive.
(todos-faces): New defgroup; use in all face definitions.
(todos-sorted-column, todos-archived-only, todos-search): New faces.
(todos-font-lock-keywords): Use subexpression 1 with matcher
todos-category-string-match.
(todos-mode-map, todos-archive-mode-map, todos-edit-mode-map)
(todos-categories-mode-map): Add new key bindings; change some
existing bindings.
(todos-top-priorities-mode-map): New keymap.
(todos-menu): Add submenues and new entries.
(auto-mode-alist): Add extension of Todos and Todos archive files.
(todos-mode, todos-archive-mode): Make derived mode; use
todos-modes-set-1, todos-modes-set-2, todos-auto-switch-todos-file
and todos-switch-todos-file; make todos-show-done-only local
variable.
(todos-edit-mode): Make derived mode; use todos-modes-set-1.
(todos-categories-mode): Make derived mode.
(todos-top-priorities-mode): New derived major mode.
(todos-save): Remove unused code.
(todos-quit): Handle todos-categories-mode; save archive buffer.
(todos-show): Add optional argument to prompt for a Todos file; if
called interactively or with prefix arg or from an archive, don't
make a no-op but reset todos-current-todos-file, todos-categories
and todos-category-number; use todos-read-file-name,
todos-display-categories-first, todos-ignore-archived-categories.
(todos-display-categories): Change argument name; refactor code
for inserting table labels and lines, using
todos-ignore-archived-categories, todos-sort,
todos-categories-number-separator, todos-insert-sort-button,
todos-categories-*-labels, and todos-insert-category-line.
(todos-display-categories-alphabetically): Use todos-display-sorted.
(todos-toggle-view-done-items): Use todos-done-string-start and
todos-get-count.
(todos-toggle-display-date-time): Use todos-done-string-start.
(todos-top-priorities): Remove autoload cookie; partially rewrite:
new argument list; allow combining top priorities of multiple
Todos files; change display to include category (and file) name as
part of item header; use todos-top-priorities-mode.
(todos-diary-items): Reimplement using only todos-top-priorities.
(todos-forward-category, todos-backward-category): Accommodate to
1-based numbering of categories; move point to top of category.
(todos-jump-to-category): Rewrite, adding optional arguments to
provide a category in non-interactive uses and to prompt for which
Todos file to jump to.
(todos-search): Reimplement; highlight each match as found, say
how many matches remain and prompt whether to go to next one; at
end of search prompt whether to remove highlighting.
(todos-add-category): Remove autoload cookie; assign new category
the highest category number; associate zero-initialized vector of
item counts, instead of property list, with new category; use
todos-validate-category-name and todos-update-categories-sexp.
(todos-rename-category): Use todos-validate-category-name and
todos-update-categories-sexp; take archive files into account.
(todos-delete-category): Use todos-get-count and
todos-update-categories-sexp, let-bind variable that were
mistakenly global; use delete-region instead of kill-region;
accommodate to 1-based numbering of categories; move point to top
of category.
(todos-raise-category): Handle item count vectors; use
todos-insert-category-line and todos-update-categories-sexp.
(todos-insert-item): Use nil time-string argument to omit time
string; use todos-nondiary-start and todos-nondiary-end and
todos-update-categories-sexp; if category named to insert into
does not exist, add it; take new diary items into account.
(todos-insert-item-ask-date, todos-insert-item-ask-date-time)
(todos-insert-item-ask-date-time-for-diary)
(todos-insert-item-ask-date-time-for-diary-here)
(todos-insert-item-ask-date-time-here)
(todos-insert-item-ask-date-maybe-notime)
(todos-insert-item-ask-date-maybe-notime-for-diary)
(todos-insert-item-ask-date-maybe-notime-for-diary-here)
(todos-insert-item-ask-date-maybe-notime-here)
(todos-insert-item-ask-date-for-diary)
(todos-insert-item-ask-date-for-diary-here)
(todos-insert-item-ask-date-here, todos-insert-item-ask-dayname)
(todos-insert-item-ask-dayname-time)
(todos-insert-item-ask-dayname-time-for-diary)
(todos-insert-item-ask-dayname-time-for-diary-here)
(todos-insert-item-ask-dayname-time-here)
(todos-insert-item-ask-dayname-maybe-notime)
(todos-insert-item-ask-dayname-maybe-notime-for-diary)
(todos-insert-item-ask-dayname-maybe-notime-for-diary-here)
(todos-insert-item-ask-dayname-maybe-notime-here)
(todos-insert-item-ask-dayname-for-diary)
(todos-insert-item-ask-dayname-for-diary-here)
(todos-insert-item-ask-dayname-here, todos-insert-item-ask-time)
(todos-insert-item-ask-time-for-diary)
(todos-insert-item-ask-time-for-diary-here)
(todos-insert-item-ask-time-here)
(todos-insert-item-maybe-notime)
(todos-insert-item-maybe-notime-for-diary)
(todos-insert-item-maybe-notime-for-diary-here)
(todos-insert-item-maybe-notime-here)
(todos-insert-item-for-diary, todos-insert-item-for-diary-here):
New insertion commands.
(todos-insert-item-from-calendar): Use todos-current-todos-file.
(todos-delete-item): Handle diary items;
use todos-update-categories-sexp.
(todos-edit-item): Check if point is with item string;
use read-string instead of read-from-minibuffer;
use todos-date-string-start; after editing put point at start of
item text.
(todos-edit-multiline): Narrow to item before invoking
todos-edit-mode; show key binding of todos-edit-quit in a message.
(todos-edit-quit): Use todos-save; kill buffer.
(todos-edit-item-header): Add optional argument to prompt for
editing only date string or only time string;
use todos-date-string-start.
(todos-edit-item-date, todos-edit-item-date-is-today)
(todos-raise-item-priority, todos-lower-item-priority): Rename
from todos-{raise, lower}-item and make them DTRT in
todos-top-priorities-mode.
(todos-set-item-priority): Make interactive; use todos-get-count
and todos-insert-with-overlays; interactively, just relocate the
item within its category.
(todos-move-item): Add optional argument to prompt for a category
in another Todos file; handle diary items; fix restoration after
cancelling before inserting.
(todos-item-done): Handle diary items; simplify handling of
insertion in done items section.
(todos-item-undo): Handle diary items.
(todos-archive-done-items): Accommodate to new handling of archive
files (in parallel with Todos files); handle diary items; use
todos-done-string-start.
(todos-toggle-item-diary-inclusion): Use todos-nondiary-start,
todos-nondiary-end and todos-item-counts.
(todos-toggle-diary-inclusion): Use todos-category-done instead of
todos-category-end.
(todos-print): Remove autoload cookie; rewrite to make overlays,
line wrapping and wrap prefixes printable.
(todos-date-pattern): Make parenthesized groups shy.
(todos-date-string-match): Use todos-date-string-start; make
todos-date-pattern an explicitly numbered group.
(todos-time-string-match): Use todos-date-string-start.
(todos-done-string-match): Use todos-done-string-start.
(todos-category-string-match): Rewrite to match new category and
category+filename patterns in todos-top-priorities-mode.
(todos-prefix-overlays): Use todos-done-string-start and
todos-category-done.
(todos-reset-prefix): Handle archive files; restore point after
changing prefix.
(todos-reset-separator): Handle archive files.
(todos-category-number): Make category number one more than its
list index.
(todos-current-category): Accommodate to 1-based numbering of
categories.
(todos-category-select): Simplify handling of done items and done
separator string overlay.
(todos-item-start): Use todos-date-string-start and
todos-done-string-start.
(todos-item-start, todos-item-end): Fix wrong parenthesizing.
(todos-item-string): Restore point after getting item bounds; use
buffer-substring-no-properties.
(todos-done-item-p): Use todos-done-string-start.
(todos-make-categories-list): Add optional argument to force
looping through file to get categories and their item counts,
otherwise set todos-categories from sexp in first line; use
vectors of item counts instead of plists; count diary items.
(todos-item-counts): Use todos-counts, todos-set-counts,
todos-get-counts, and todos-update-categories-sexp instead of
getting and setting properties; handle diary items.
(todos-read-category): Add argument to set prompt; don't offer
default category.
(todos-validate-category-name): Rename from
todos-check-category-name; take into account whether there are
already categories or not.
(todos-read-date): Accept `*' as an unspecified month, day, or year.
(todos-padded-string): Accommodate new structure of
todos-categories as alists; use todos-categories-align.
(todos-descending-counts-store): New variable.
(todos-insert-category-line): Rename from
todos-insert-category-name and reimplement using labels and
todos-get-counts instead of properties; use
todos-ignore-archived-categories; highlight sorted column.

* calendar/todos.el Remove lots of commented out code; add various
comments; further code rearrangement.
(todos-insert-item-here-ask-date-time)
(todos-insert-item-ask-date-time)
(todos-insert-item-ask-dayname-time)
(todos-insert-item-for-diary)
(todos-insert-item-for-diary-ask-date-time)
(todos-make-categories-alist, todos-categories-alist): Remove.
(todos-categories-list): Comment out.
(todos-make-categories-list): New function replacing
todos-make-categories-alist, using category plists to get item
counts and taking archive into account.
(todos-current-todos-file): New variable.
(todos-mode-map): Update key bindings.
(todos-save): Add as comment code to make sure todos-categories
sexp is current on saving.
(todos-quit): Call todos-show on quitting Todos archive buffer.
(todos-show): If todos-current-todos-file is not set to Todos
file, set it as a new file; set todos-categories from
todos-make-categories-alist.
(todos-display-categories): Use a different display format for
archive file; put point initially on the first button.
(todos-toggle-view-done-items): Check the category's `done'
property to determine if there are done items.
(todos-view-archive): Set todos-current-todos-file to the archive
file; jump from the Todos file to the same category in the
archive, if it exists, else jump to the first category; use
message instead of error.
(todos-add-category): Intern a special symbol for the new category
and set its property list to holds counts of the numbers of todo,
done and archived items in the category; assign the new category
the current highest category number.
(todos-rename-category): Don't use todos-categories-alist.
(todos-delete-category): Check the category's `todo' and `done'
properties to determine if it is empty; ensure that the end of the
last category is found; after deleting the category, empty its
plist and unintern its special symbol.
(todos-insert-item-here): Fix argument list of todos-insert-item.
(todos-delete-item, todos-raise-item, todos-lower-item):
Use message instead of error.
(todos-move-item): If the category to be moved to does not exist,
add it as a new category.
(todos-item-done, todos-reset-separator):
Use todos-category-select instead of todos-show.
(todos-archive-done-items): Make buffer writeable; conditionalize
search for end of category; save after adding to archive in case
the file is new, so it can be found.
(todos-category-select): Wrap search in if instead of or+and;
don't hide done items in an archive.
(todos-set-item-priority): Check the category's `todo'
property to determine if there are not done todo items.
(todos-jump-to-category-noninteractively): Just switch to buffer
visiting todos-current-todos-file, since this can be either a
Todos file or an archive.
(todos-item-counts): Use category's plist instead of an alist.
(todos-longest-category-name-length): Argument is now a list of
category names, not an alist, so just test each element, not each
element's the car.
(todos-padded-string): Use todos-categories instead of
todos-categories-alist.
(todos-insert-category-name): Use category plist to get item
counts; take archived items into account.

* calendar/todos.el: Numerous spelling and comment fixes, doc
string fixes to conform with checkdoc, further rearrangement of
definitions, etc.
(todos-previous-line, todos-previous-answer)
(todos-insert-item-ask-date, todos-change-date)
(todos-date-nodayname-pattern, todos-dayname-date-pattern)
(todos-count-items-in-category, todos-count-all-items): Remove.
(todos-update-numbered-prefix, todos-item-start-overlays)
(todos-add-item-non-interactively): Comment out, also in uses.
(todos-done-separator): Change default value.
(todos-always-add-time-string): Rename from todos-add-time-string
and adjust uses.
(todos-read-category): Rename from todos-completing-read and
adjust callers; use todos-current-category.
(todos-make-categories-alist): Rename from function
todos-categories-alist.
(todos-categories-alist): New variable.
(todos-indent-to-here): New defcustom.
(todos-button): New face.
(todos-display-categories-alphabetically, todos-raise-category)
(todos-lower-category, todos-insert-item-for-diary-ask-date-time)
(todos-insert-item-here-ask-date-time)
(todos-insert-item-ask-date-time)
(todos-insert-item-ask-dayname-time): New commands.
(todos-edit-item-header): New command replacing todos-change-date.
(todos-category-number, todos-indent, todos-item-counts)
(todos-check-category-name, todos-read-date, todos-read-dayname)
(todos-read-time, todos-padded-string)
(todos-insert-category-name): New functions.
(todos-set-item-priority): New function replacing
todos-add-item-non-interactively.
(todos-mode-map): Remap newline to newline-and-indent.
(todos-edit-mode-map): Make sparse keymap; remap newline to
newline-and-indent.
(todos-categories-mode-map): New keymap.
(todos-mode, todos-edit-mode): Make indent-line-function local
variable and set to todos-indent.
(todos-categories-mode): New major mode.
(todos-display-categories): List categories initially in their
numerical order; add optional argument to switch to alphabetical
listing.
(todos-toggle-view-done-items): Simplify implementation.
(todos-toggle-display-date-time): Fix regexp search string.
(todos-backward-item, todos-forward-item): Use variable
todos-item-start.
(todos-add-category): Use todos-check-category-name and
todos-categories-alist.
(todos-rename-category): Use todos-current-category,
todos-check-category-name and todos-categories-alist.
(todos-delete-category): Use todos-check-category-name and
todos-categories-alist and take done items into account.
(todos-insert-item): Use separate arguments to handle insertion of
date/dayname and time strings, add new argument to mark item for
diary inclusion, use new todos-read-* functions,
todos-set-item-priority and todos-item-counts.
(todos-insert-item-here, todos-insert-item-for-diary)
(todos-insert-item-from-calendar): Adapt to new version of
todos-insert-item.
(todos-delete-item, todos-item-done): Use todos-item-counts.
(todos-edit-item): Indent newlines inserted by C-q C-j if nonspace
char follows.
(todos-lower-item): Ensure only not-done items can be lowered.
(todos-move-item): Use todos-current-category, todos-read-category
and todos-item-counts.
(todos-archive-done-items): Use todos-current-category and
todos-item-counts; fix regexp search string.
(todos-item-undo): Use todos-current-category,
todos-set-item-priority, todos-insert-with-overlays and
todos-item-counts; restore if user quits before inserting undone
item.
(todos-date-pattern): Rewrite without using
todos-date-nodayname-pattern and todos-dayname-date-pattern.
(todos-date-string-match): Do not make todos-date-pattern an
unnumbered group.
(todos-time-string-match): Make todos-date-pattern a shy group.
(todos-wrap-and-indent): Use todos-indent-to-here.
(todos-reset-prefix): Revert to using todos-show instead of
todos-category-select.
(todos-prefix-overlays): Fix numbering of done items and updating
of prefix.
(todos-category-select): Use todos-current-category; fix display
of separator string; don't move point to top of category.
(todos-jump-to-category-noninteractively): Use todos-category-number.
(todos-insert-with-overlays): Use todos-item-start unconditionally.
(todos-item-start): New variable.
(todos-item-start): Use it to define this function.
(todos-item-end): Adjust if item is last unfinished one before
displayed done items.
(todos-remove-item): Use todos-item-start and todos-item-end
instead of todos-forward-item and todos-backward-item.
(todos-longest-category-name-length): Add argument for list of
categories.

* calendar/todos.el: Comment out calendar require, since diary-lib
requires calendar.  Rearrange file to group definitions according
to their use (types of commands, internal functions, etc.)
(todos-file-done, todos-insert-threshold, todos-remove-separator)
(todos-date-string, todos-time-string, todos-check-overlay)
(todos-show-paren-hack, todos-file-item, todos-more-important-p):
Comment out.
(todos-current-date, todos-item-end-overlays)
(todos-list-categories): Remove.
(todos-item-end): Remove (the variable, not the function).
(todos-item-overlays): Rename to todos-prefix-overlays and adjust
callers.
(todos-prefix-overlays): Rename from todos-item-overlays.
(todos-done-separator, todos-done-string, todos-show-with-done)
(todos-files, todos-archive-file, todos-categories-buffer)
(todos-archived-categories-buffer, todos-wrap-lines)
(todos-line-wrapping-function): New defcustoms.
(todos-done, todos-done-sep): New faces.
(todos-done-face, todos-done-sep-face): Corresponding new variables.
(todos-search-string, todos-date-nodayname-pattern)
(todos-dayname-date-pattern, todos-date-pattern): New variables.
(todos-done-string-match, todos-category-string-match)
(todos-check-format, todos-wrap-and-indent, todos-reset-separator)
(todos-current-category, todos-count-items-in-category)
(todos-done-item-p, todos-categories-alist, todos-count-all-items)
(todos-longest-category-name-length): New functions.
(todos-categories-list): New buffer-specific function replacing
todos-list-categories.
(todos-toggle-item-numbering, todos-toggle-view-done-items)
(todos-search, todos-view-archive, todos-diary-items)
(todos-toggle-display-date-time, todos-insert-item-no-time)
(todos-insert-item-ask-date, todos-insert-item-for-diary)
(todos-insert-item-from-calendar, todos-edit-quit)
(todos-change-date, todos-item-done, todos-archive-done-items)
(todos-item-undo): New commands.
(todos-archive-mode): New mode.
(todos-archive-mode-map, todos-edit-mode-map): New keymaps.
(todos-category-beg): Change value.
(todos-number-prefix): Change default value.
(todos-edit-buffer): Change from defvar to defcustom.
(todos-font-lock-keywords): Use todos-done-string-match and
todos-category-string-match.
(todos-backward-item, todos-forward-item): Use todos-done-string
and todos-date-pattern.
(todos-display-categories): Reimplement using buttons from
button.el instead of widgets.
(todos-top-priorities): Use with-current-buffer; take done items
into account; ensure buffers gets fontified.
(todos-add-category): Ensure new category does not begin with
empty lines.
(todos-jump-to-category): Use todos-category-select instead of
todos-show.
(todos-rename-category): Prompt for new name in body instead of in
interactive spec.
(todos-insert-item): Don't insert in done items section of
category.  Add two optional arguments to control insertion: (i) to
insert near point without prompting for priority; (ii) to use
defaults for date and time strings, to prompt for these, or to
choose date from the Calendar.
(todos-insert-item-here): Reimplement using todos-insert-item.
(todos-delete-item): Don't move point after deleting last item.
(todos-raise-item, todos-lower-item): Take done items into account.
(todos-move-item): Don't move done items; update item numbering;
restore if user quits before inserting moved item.
(todos-print): Prompt for confirmation to print.
(todos-reset-prefix): Search backward from end of file instead of
forward from top.
(todos-jump-to-category-noninteractively): Take Todos archive into
account.
(todos-category-select): Show or hide done items according to
todos-show-with-done; if shown, coordinate separator and prefix
overlays.
(todos-add-item-non-interactively): Replace binary insertion
algorithm with prompting for numerical priority.
(todos-insert-with-overlays): Remove use of variable todos-item-end.
(todos-item-start): Take done items into account; use
todos-date-pattern.
(todos-item-end): Reimplement using todos-forward-item.
(todos-remove-item): Reimplement using todos-forward-item and
todos-backward-item; redo overlay handling.
(todos-mode-map): Add some new key bindings and change numerous
existing bindings; use "i" as prefix key for item insertion
commands.
(todos-mode): Use todos-wrap-lines and delegate word-wrap and
wrap-prefix settings to todos-wrap-and-indent; add to invisibility
spec; set buffer-read-only to t and consequently let-bind this
variable in all Todos commands that change buffer content.
(todos-edit-mode): Make an indepent mode, not derived from text-mode.
(todos-save): Don't save top priorities buffer.
(todos-show): Make a no-op if called interactively in narrowed
Todos mode, since, also to work around item prefix reduplication
bug with show-paren-mode enabled; use todos-categories-list.

* calendar/todos.el: Comment out time-stamp require; require
calendar and diary-lib.
(todos-prefix): Change default value and doc string to reflect new
meaning; add :initialize and :set functions.
(todos-time-string-format, todos-entry-prefix-function)
(todos-initials, todos-entry-timestamp-initials)
(todos-prefix-face, todos-category-sep, todos-category-end)
(todos-cp): Comment out.
(todos-prefix-string): Inherit from font-lock-comment-face.
(todos-item-header, todos-item-header-face): Remove.
(todos-date, todos-time): New faces.
(todos-date-face, todos-time-face): Corresponding new variables.
(todos-add-time-string, todos-include-in-diary)
(todos-exclusion-start, todos-exclusion-end, todos-number-prefix):
New defcustoms.
(todos-item-end, todos-item-start-overlays)
(todos-item-end-overlays): New variables.
(todos-date-string-match, todos-time-string-match): New functions.
(todos-font-lock-keywords): Use them.
(todos-current-date, todos-date-string, todos-time-string)
(todos-toggle-item-diary-inclusion, todos-toggle-diary-inclusion)
(todos-reset-prefix, todos-update-numbered-prefix)
(todos-check-overlay, todos-item-overlays)
(todos-insert-with-overlays, todos-show-paren-hack): New functions.
(todos-highlight-item): New command.
(todos-category-beg): Change value.
(todos-category-select): Use todos-category-beg and todos-item-overlays.
(todos-backward-item): Add optional count argument; use it and
todos-item-start.
(todos-forward-item): Use todos-check-overlay, todos-item-start
and variable todos-item-end.
(todos-edit-item, todos-delete-item): Use todos-number-prefix,
todos-update-numbered-prefix, todos-item-overlays.
(todos-add-category, todos-rename-category)
(todos-list-categories): Use new category format.
(todos-delete-category): Allow deleting non-empty category;
use new category format.
(todos-add-item-non-interactively): Comment out unnecessary
save-excursion; use todos-insert-with-overlays.
(todos-insert-item): Comment out unnecessary save-excursion; use
new item format for date/time header and diary inclusion marking.
(todos-insert-item-here): Use new item format for date/time header
and diary inclusion marking; use todos-insert-with-overlays.
(todos-raise-item): Make a no-op if point is on an empty line; use
todos-insert-with-overlays.
(todos-lower-item): Use todos-insert-with-overlays.
(todos-top-priorities): Move call to todos-show inside
save-excursion; add save-current-buffer after save-restriction.
(todos-item-start): Use variable todos-item-end.
(todos-item-end): Use todos-check-overlay and variable todos-item-end.
(todos-remove-item): Take item overlays into account.
(todos-mode): Change calculation of wrap-prefix; make
hl-line-range-function a local variable and set it to highlight
todo item.
(todos-show): Ensure point stays at top of category.

* calendar/todos.el (todos-window-configuration): Comment out.
(todos-display-categories): Comment out use of
todos-window-configuration; use switch-to-buffer instead of
pop-to-buffer.
(todos-jump-to-category-noninteractively): Comment out use of
todos-window-configuration.
(todos-edit-item): Don't allow editing of date/time item header.
(todos-insert-item, todos-insert-item-here): Insert date/time
header in front of new item string.
(todos-mode): Tweak wrap-prefix.

Commit ChangeLog changes.  (They weren't committed on the previous
fileset commit, although the ChangeLog had been saved.)

* calendar/todos.el (todos-file-do, todos-file-done):
Change default location to directory "~/.emacs.d/".
(todos-completion-ignore-case, todos-categories-buffer):
New defcustoms.
(todos-prefix-string, todos-item-header): New faces.
(todos-prefix-face, todos-item-header-face): Corresponding
new variables.
(todos-rename-category, todos-delete-category)
(todos-display-categories, todos-move-item): New commands.
(todos-mode-map): Add key bindings for new commands and for
todos-add-category, which had no key binding.
(todos-jump-to-category-noninteractively): New function.
(todos-top-priorities): Comment out code using a previously
deleted variable.
(todos-completing-read): Allow SPC to insert a space when entering
a new category name; use todos-completion-ignore-case.
(todos-font-lock-keywords, todos-window-configuration):
New variables.
(todos-mode): Make mode-name "TODOS"; make font-lock-defaults,
word-wrap, and wrap-prefix local variables.

* calendar/todos.el (todos-list-categories): Fix typos.
(todos-show): Ensure file is in todos-mode.

Second commit to todos.el.

* calendar/todos.el (todos-header): Remove defvar.
(todos-add-category): Comment out code that inserts and updates
the file local variables first line of the file todos-file-do.
(todos-list-categories): New function.
(todos-show): Use it; remove use of a previously deleted variable.

Reconstructed and backdated initial commit of todos.el.

* calendar/todos.el: New file.  This is a copy of todo-mode.el
from 2009-01-30T13:06:07Z!lekktu@gmail.com except for the following changes: replace all
occurrences of the namespace prefix "todo-" with "todos-", delete
the defvar todo-cats (the old name of todo-categories) and its use
in todos-add-category, delete all defaliases of old command names.

Fix 2012-09-11T14:06:33Z!bastien1@free.fr.

* nsterm.h: Add delay parameter to updateFrameSize.

* nsterm.m (ns_judge_scroll_bars): Pass NO to updateFrameSize.
(updateFrameSize:): Add delay parameter to updateFrameSize, send it
to change_frame_size.
(windowDidResize:): Pass YES to updateFrameSize.

Fixes: debbugs:12388

* subr.el (set-temporary-overlay-map): Add a docstring.  (bug#12346)

Bug #12346 is not closed as this commit does not document
`set-temporary-overlay-map' in the manual.

Discard killed buffers from deleted window and frame objects.
This reduces an amount of references to killed buffers and
helps GC to reclaim them faster.
* alloc.c (discard_killed_buffers): New function.
(mark_object): Use it for deleted windows and frames.
(mark_object): If symbol's value is set up for a killed buffer
or deleted frame, restore it's global binding.
* data.c (swap_in_global_binding): Add GC notice.
(swap_in_symval_forwarding): Use convenient set_blv_where.
* window.c (wset_next_buffers, wset_prev_buffers): Move ...
* window.h: ... to here.

* minibuffer.el (completion-table-subvert): Fix docstring.  (bug#12347)

* help-fns.el (describe-variable): Fix typo. (bug#12346)

Auto-commit of generated files.

gnus-notifications.el: add nil checks

Be more explicit about some Makefile dependencies

* Makefile.in (install-arch-dep, install-arch-indep, install-doc):
Be more explicit about dependencies, for parallel `make install'.

It is not so unreasonable to run `make -j# install' from a clean state
for a self-contained NS build, where the "installation" happens within
the build tree.

Convenient macro to check whether the buffer is live.
* buffer.h (BUFFER_LIVE_P): New macro.
* alloc.c, buffer.c, editfns.c, insdel.c, lread.c, marker.c:
* minibuf.c, print.c, process.c, window.c, xdisp.c: Use it.

Fix wrong overhang display for gstring compositions (Bug#12364).

* xdisp.c (right_overwritten, right_overwriting): Also handle gstring
composition cases (Bug#12364).

* xterm.c (x_draw_glyph_string): Avoid overwriting inverted left
overhang of succeeding glyphs overlapping box cursor.

* w32term.c (x_draw_glyph_string): Likewise.

Simplify, document, and port floating-point.

The porting part of this patch fixes bugs on non-IEEE platforms
with frexp, ldexp, logb.
* admin/CPP-DEFINES (HAVE_CBRT, HAVE_LOGB, logb): Remove.
* configure.ac (logb, cbrt): Do not check for these functions,
as they are not being used.
* doc/lispref/numbers.texi (Float Basics, Arithmetic Operations, Math Functions):
Document that / and mod (with floating point arguments), along
with asin, acos, log, log10, expt and sqrt, return special values
instead of signaling exceptions.
(Float Basics): Document that logb operates on the absolute value
of its argument.
(Math Functions): Document that (log ARG BASE) also returns NaN if
BASE is negative.  Document that (expt X Y) returns NaN if X is a
finite negative number and Y a finite non-integer.
* etc/NEWS: Document NaNs versus signaling-error change.
* src/data.c, src/lisp.h (Qdomain_error, Qsingularity_error, Qunderflow_error):
Now static.
* src/floatfns.c: Simplify discussion of functions that Emacs doesn't
support, by removing commented-out code and briefly listing the
C89 functions excluded.  The commented-out stuff was confusing
maintenance, e.g., we thought we needed cbrt but it was commented out.
(logb): Remove decl; no longer needed.
(isfinite): New macro, if not already supplied.
(isnan): Don't replace any existing macro.
(Ffrexp, Fldexp): Define even if !HAVE_COPYSIGN, as frexp and ldexp
are present on all C89 platforms.
(Ffrexp): Do not special-case zero, as frexp does the right thing
for that case.
(Flogb): Do not use logb, as it doesn't have the desired meaning
on hosts that use non-base-2 floating point.  Instead, stick with
frexp, which is C89 anyway.  Do not pass an infinity or a NaN to
frexp, to avoid getting an unspecified result.

* xdisp.c (Qinhibit_debug_on_message): Now static.

* nsterm.m (ns_update_begin): Set clip path to whole view by using
NSBezierPath.

Fixes: debbugs:12131

* progmodes/sql.el: Version 3.1
(sql-db2-escape-newlines): New variable.
(sql-escape-newlines-filter): Use it.

lisp/custom.el (custom-theme-load-confirm): Remove unneeded assignment.

* vc/diff-mode.el (diff-mode-menu): diff-remove-trailing-whitespace.

Mention diff-remove-trailing-whitespace.

nt/config.nt: Sync with autogen/config.in.
(FLOAT_CHECK_DOMAIN, HAVE_FMOD, HAVE_FREXP)
(HAVE_INVERSE_HYPERBOLIC, NO_MATHERR): Remove.

Auto-commit of generated files.

* fns.c (Fdelq, Fdelete): Doc fix.

Parenthesize macro bodies.

* lisp.h (XSETINT, XSETCONS, XSETVECTOR, XSETSTRING, XSETSYMBOL)
(XSETFLOAT, XSETMISC): Parenthesize.

New emacs-lisp-byte-code-mode; misc minor changes.
* lisp/emacs-lisp/lisp-mode.el (emacs-list-byte-code-comment-re): New var.
(emacs-lisp-byte-code-comment)
(emacs-lisp-byte-code-syntax-propertize, emacs-lisp-byte-code-mode):
New functions.
(eval-sexp-add-defvars): Don't skip defvars in column >0.
(eval-defun-2): Remove bogus interactive spec.
(lisp-indent-line): Remove redundant whole-exp code, now done in
indent-according-to-mode.
(save-match-data): Remove redundant indent data.
* lisp/emacs-lisp/benchmark.el (benchmark-run, benchmark-run-compiled):
Use `declare'.
* lisp/gnus/qp.el (quoted-printable-decode-region):
Inline+CSE+strength-reduction.

Improve robustness of 'make bootstrap'.

Run autogen.sh after bootstrap-clean, to avoid bzr pull issues.
* INSTALL, README: Document autogen.sh.
* Makefile.in (Makefile): Mark it as precious, since it's updated
atomically.
(MAKE_CONFIG_STATUS): New macro.
(config.status, bootstrap): Use it.  This causes 'make bootstrap'
to run config.status with the --recheck option, which is more
appropriate for a bootstrap.
(bootstrap): Run autogen.sh right after cleaning.  Don't worry
about failures due to missing tools.
* autogen.sh: Exit with status 101 when failing due to missing tools.
* make-dist: Distribute autogen.sh.

Fixes: debbugs:12376

* lisp/replace.el (replace-regexp-lax-whitespace): New defcustom.
(replace-lax-whitespace, query-replace-regexp)
(query-replace-regexp-eval, replace-regexp): Doc fix.
(perform-replace, replace-highlight): Let-bind
isearch-lax-whitespace to replace-lax-whitespace and
isearch-regexp-lax-whitespace to replace-regexp-lax-whitespace.

* lisp/isearch.el (isearch-query-replace): Let-bind
replace-lax-whitespace to isearch-lax-whitespace and
replace-regexp-lax-whitespace to
isearch-regexp-lax-whitespace.

Fixes: debbugs:10885

* src/lisp.h (make_lisp_ptr): New macro to replace XSET.
(XSETCONS, XSETVECTOR, XSETSTRING, XSETSYMBOL, XSETFLOAT, XSETMISC):
Use it.

* lisp/eshell/em-unix.el (eshell/sudo): Explicitly drop return value.

Avoid leaving traces of cursor when entering linum-mode.

 src/fringe.c (draw_fringe_bitmap_1): Don't reduce the width of the
 left fringe if the window has a left margin.  This avoids leaving
 traces of the cursor because its leftmost pixel is not drawn over.

Fix bug #12277 with incomplete redisplay of the vertical border between windows.

 src/dispnew.c (update_window_line): When the left margin area of a
 screen line is updated, set the redraw_fringe_bitmaps_p flag of
 that screen line.

Assume C89 or later for math functions.

This simplifies the code, and makes it a bit smaller and faster,
and (most important) makes it easier to clean up signal handling
since we can stop worring about floating-point exceptions in
library code.  That was a problem before C89, but the problem
went away many years ago on all practical Emacs targets.
* configure.ac (frexp, fmod): Remove checks for these functions,
as we now assume them.
(FLOAT_CHECK_DOMAIN, HAVE_INVERSE_HYPERBOLIC, NO_MATHERR)
(HAVE_EXCEPTION):
Remove; no longer needed.
* admin/CPP-DEFINES (HAVE_FMOD, HAVE_FREXP, FLOAT_CHECK_DOMAIN)
(HAVE_INVERSE_HYPERBOLIC, NO_MATHERR): Remove.
* src/data.c, src/image.c, src/lread.c, src/print.c:
Don't include <math.h>; no longer needed.
* src/data.c, src/floatfns.c (IEEE_FLOATING_POINT): Don't worry that it
might be autoconfigured, as that never happens.
* src/data.c (fmod):
* src/doprnt.c (DBL_MAX_10_EXP):
* src/print.c (DBL_DIG):
Remove.  C89 or later always defines these.
* src/floatfns.c (HAVE_MATHERR, FLOAT_CHECK_ERRNO, FLOAT_CHECK_DOMAIN)
(in_float, float_error_arg, float_error_arg2, float_error_fn_name)
(arith_error, domain_error, domain_error2):
Remove all this pre-C89 cruft.  Do not include <errno.h> as that's
no longer needed -- we simply return what C returns.  All uses removed.
(IN_FLOAT, IN_FLOAT2): Remove.  All uses replaced with
the wrapped code.
(FLOAT_TO_INT, FLOAT_TO_INT2, range_error, range_error2):
Remove.  All uses expanded, as these macros are no longer used
more than once and are now more trouble than they're worth.
(Ftan): Use tan, not sin / cos.
(Flogb): Assume C89 frexp.
(fmod_float): Assume C89 fmod.
(matherr) [HAVE_MATHERR]: Remove; no longer needed.
(init_floatfns): Remove.  All uses removed.

Correct the handling of two c-state-cache state variables.
cc-engine.el (c-state-cache-init): Initialise
c-state-semi-nonlit-pos-cache\(-limit\)? properly.
(c-record-parse-state-state): record
c-state-semi-nonlit-pos-cache\(-limit\)?.

Remove debug prints