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New defcustoms to add ffap-like functionality to ido.
(ido-saved-vc-hb): Rename from ido-saved-vc-mt.  Uses changed.
(ido-no-final-slash): New defun.
(ido-make-prompt, ido-file-internal, ido-toggle-vc)
(ido-read-file-name): ): Toggle VC checking via
vc-handled-backends instead of vc-master-templates.
(ido-file-internal): Handle ido-use-url-at-point and
ido-use-filename-at-point via code borrowed from ffap-guesser.
Handle new ido-exit code ffap.
(ido-sort-list): Ignore final slash when sorting file names.

when user presses RETURN to select buffer) before running:

	;; This happens for example if the buffer was chosen with the mouse.
	(setq iswitchb-matches (list iswitchb-final-text)))


iswitchb-exit-minibuffer: set iswitchb-exit to 'usefirst.

These changes were made to fix the following bug reported by Markus
Rost and John Wiegley:

Evaluate:
(progn
   (iswitchb-mode 1)
   (get-buffer-create "12")
   (get-buffer-create "1")
   (iswitchb-buffer))

You get prompted in the minibuffer.  Type "1".  The minibuffer shows

 iswitch 1{12,1}

Hit RET.  You find yourself in buffer "1" instead of "12", as you
would expect from the documentation.

This bug was introduced when iswitchb-read-buffer was updated to allow
user to select items from the *Completions* buffer with the mouse.

EMACS_INT to not lose bits.
(Ffillarray): Don't set bits beyond the size of a bool vector.

define this defun on systems that cannot use stderr as lvalue.

to avoid external programs; do all processing inside Emacs.

instead of ".2mms" to support operation under VMS.

[__FreeBSD_version >= 500042]: Define as -znocombreloc because
ld's default is incompatible with unexec.

(window_loop): Handle REDISPLAY_BUFFER_WINDOWS.
(Fforce_window_update): New defun.
(syms_of_window): Defsubr it.
(Fset_window_margins, Fset_window_fringes): Doc fix.

(syms_of_print): Defsubr it.

(grep-find-command, grep-tree-command, grep-tree-files-aliases)
(grep-tree-ignore-case, grep-tree-ignore-CVS-directories)
(grep-regexp-alist, grep-program, find-program)
(grep-find-use-xargs, grep-history, grep-find-history)
(grep-process-setup, grep-compute-defaults)
(grep-default-command, grep, grep-tag-default, grep-find)
(grep-expand-command-macros, grep-tree-last-regexp)
(grep-tree-last-files, grep-tree): Move grep variables, functions
and commands to new file grep.el.
(compilation-mode-map): Remove grep commands from Compile sub-menu.

(compilation-process-setup-function): Doc fix.
(compilation-highlight-regexp, compilation-highlight-overlay): New
defvars used for highlighting current compile error in source buffer.
(compile-internal): New optional args HIGHLIGHT-REGEXP and
LOCAL-MAP which overrides compilation-highlight-regexp and
compilation-mode-map for this compilation.
Delay calling compilation-set-window-height until after running
compilation-process-setup-function so it can buffer-local override
compilation-window-height.
Check buffer-local value of compilation-scroll-output.
(compilation-set-window-height): Use buffer-local value of
compilation-window-height.
(compilation-revert-buffer): Don't pass (undefined)
preserve-modes arg to revert-buffer.
(next-error-no-select, previous-error-no-select): New commands.
(compilation-goto-locus): Temporarily highlight current match in
source buffer using compilation-highlight-regexp.

(grep): New defcustom group.
(grep-window-height): New defcustom, like compilation-window-height.
(grep-auto-highlight): New defcustom, like compile-auto-highlight.
(grep-scroll-output): New defcustom, like compilation-scroll-output.
(grep-command, grep-use-null-device, grep-find-command)
(grep-tree-files-aliases, grep-tree-ignore-case)
(grep-tree-ignore-CVS-directories): Move to grep custom group.
(grep-setup-hook): New hook variable.
(grep-mode-map): New keymap for grep commands.  Add Grep menu.
(grep-use-compilation-buffer): New defcustom.
(grep-last-buffer): New defvar, override compilation-last-buffer.
(grep): Add optional arg HIGHLIGHT-REGEXP.  Doc fix.
Call compile-internal with args highlight-regexp and grep-mode-map.

position lists, including new text-pos and (col . row) items.
Mention left-fringe and right-fringe area events.
(Accessing Events): New functions posn-area, posn-object, and
posn-actual-col-row.  Mention posn-timestamp.  Mention that
posn-point in non-text area still returns buffer position.
Clarify posn-col-row.

(gdba): Bind it to [left-margin mouse-1] and [left-fringe mouse-1].

that hscroll still works now that clicks on fringes generate specific
mouse events.
(mouse-set-point): Note that it now works in fringes and margins
too due to new semantics of posn-point in fringes and margins.

(posn-window, posn-x-y, posn-timestamp): Simplify doc.
(posn-area, posn-actual-col-row, posn-object): New defuns.
(posn-col-row): Simplify doc.  Rewrite to use cond.
(posn-point): Also return buffer position for events outside text
area (that info is now present in the event position).

mode_line_string and marginal_area_string parameters.

Fix returned X pixel value for left-margin.

mouse click positions from frame and pixel coordinates.
Enhanced to return buffer position and actual row/column for
events outside the text area using updated mode_line_string and
marginal_area_string functions.
Return left-fringe and right-fringe clicks as such, rather than
clicks in text area.
(make_lispy_event) [USE_X_TOOLKIT, USE_GTK]: Don't call
pixel_to_glyph_coords, as we never use the results.
(make_lispy_event): Use make_lispy_position for MOUSE_CLICK_EVENT,
WHEEL_EVENT, and DRAG_N_DROP_EVENT to replace redundant code.
Eliminate unused code in WHEEL_EVENT handling.
(make_lispy_movement): Use make_lispy_position.

for glyph clicked on, rather than (unused) pixel positions.
(mode_line_string, marginal_area_string): Change X and Y args to
pointers for returning actual row/column for glyph clicked on.
Simplify and optimize loops.

(getgrgid): Added.

(getgrgid): Added.