(antlr-c-init-language-vars): New function.
(antlr-mode): Use it with cc-mode before v5.29.
(antlr-c-common-init): Don't set some local vars here.
(antlr-mode): Set them here.
(antlr-c-forward-sws): New function alias.
(antlr-mode): Redefine with cc-mode before v5.30.
(antlr-skip-sexps): Use it.
(antlr-skip-exception-part): Ditto.
(antlr-skip-file-prelude): Ditto.
(antlr-outside-rule-p): Ditto.
(antlr-end-of-body): Ditto.
(antlr-option-kind): Ditto.
(antlr-insert-option-area): Ditto.
(antlr-file-dependencies): Ditto.
argument REAL, to return a real number instead of a rounded
integer value. Define as inline function.
(ruler-mode-right-fringe-cols): Likewise.
(ruler-mode-scroll-bar-cols): New function.
(ruler-mode-left-scroll-bar-cols): Use it. Define as macro.
(ruler-mode-right-scroll-bar-cols): Likewise.
(ruler-mode-space): New function.
(ruler-mode-ruler): Use it. Handle variations of fringe style,
scroll bar mode and margins in a more robust way.
(help-make-xrefs): Only make cross-references for faces if preceded or
followed by the word `face'. Do not make a cross-reference for
variables without variable documentation, unless preceded by the word
`variable'. Update doc string accordingly.
display margins and scroll-bar settings.
(Splitting Windows): Doc split-window return value.
Clean up one-window-p.
(Selecting Windows): Fix typo.
(Cyclic Window Ordering): Explain frame as ALL-FRAMES in next-window.
(Buffers and Windows): In set-window-buffer, explain effect
on fringe settings and scroll bar settings.
(Displaying Buffers): In pop-to-buffer, explain nil as buffer arg.
(Choosing Window): Use defopt for pop-up-frame-function.
For special-display-buffer-names, explain same-window and same-frame.
Clarify window-dedicated-p return value.
(Textual Scrolling): scroll-up and scroll-down can get an error.
(Horizontal Scrolling): Clarify auto-hscroll-mode.
Clarify set-window-hscroll.
(Size of Window): Don't mention tool bar in window-height.
(Coordinates and Windows): Explain what coordinates-in-window-p
returns for fringes and display margins.
(Window Configurations): Explain saving fringes, etc.
