* hl-line.el (hl-line-range-function): New variable.
(hl-line-move): New function.
(global-hl-line-highlight): Use `hl-line-move'.
(hl-line-highlight): Ditto.
* scroll-bar.el (scroll-bar-columns): New function derived from
ruler-mode.el.
* fringe.el (fringe-columns): New function derived from
ruler-mode.el.
* ruler-mode.el (top-level): Require scroll-bar and fringe.
(ruler-mode-left-fringe-cols)
(ruler-mode-right-fringe-cols): Use `fringe-columns'.
(ruler-mode-right-scroll-bar-cols)
(ruler-mode-left-scroll-bar-cols): Use `scroll-bar-columns'.
(ruler-mode-ruler-function): New variable.
(ruler-mode-header-line-format): Call `ruler-mode-ruler-function'
if the value for `ruler-mode-ruler-function'is given.
* hexl.el (hexl-mode-hook): Make the hook customizable.
(hexl-address-area, hexl-ascii-area, hexl-ascii-cursor): New
customize variables.
(hexlify-buffer): Put font-lock-faces on the address area and
the ascii area.
(hexl-activate-ruler): New function.
(hexl-follow-line): New function.
(hexl-highlight-line-range): New function.
(hexl-mode-ruler): New function.
default-frame-scroll-bars.
(scroll-bar-mode): Use default-frame-scroll-bars when enabling
scroll-bar-mode; notably, use it instead of t when we toggle
scroll-bars on.
(toggle-scroll-bar): Use default-frame-scroll-bars.
(scroll-bar-toolkit-scroll): Start and cancel scroll-bar-timer.
(scroll-bar-toolkit-scroll): Handle `top' and `bottom'.
(scroll-bar-toolkit-scroll): New.
(global): Use different key bindings if using toolkit scroll bars.
(set-scroll-bar-mode-1): Take 2 args, as set-scroll-bar-mode used to.
(scroll-bar-mode variable): Use set-scroll-bar-mode-1.
(scroll-bar-mode command): Pass 1 arg to set-scroll-bar-mode.
Use scroll-bar-mode to determine which side; if it's nil, use left.
(set-scroll-bar-mode): New subroutine, taken from scroll-bar-mode.
(scroll-bar-mode): Use the variable set-scroll-bar-mode.
(scroll-bar-mode): New variable.
(toggle-horizontal-scroll-bar): Moved from frame.el.
functions to scrolbar.el.
* scrollbar.el (scroll-bar-mode, scroll-bar-mode): Here they are.
Make scroll-bar-mode set the {vertical,horizontal}-scrollbars
parameters in default-frame-alist, and modify all extant screens
using the correct parameter names.
