GitLab

(Interactive Codes): Fix pxref for default-directory.

(interprogram-paste-function, kill-new, kill-append): Doc fixes.
(kill-region): Make it return nil.  Doc fix.
(yank-pop): Make its argument optional.
(yank): Make ARG `-' equivalent to `-1'.

(display_and_set_cursor): Set glyph to NULL if cursor in fringe.

(was inverted compared to the 21.1 version).

rmail-use-spam-filter if rmail-spam-filter is not loaded.

global-auto-revert-non-file-buffers or autorevert-mode is non-nil.

(Buffers and Windows): Delete false table about all-frames.

Explain about translation-table-for-input and
set-buffer-file-coding-system.

Minor typo fix.

Get rid of fns-NNN.el file.

(Parameter Access): frame-parameters arg is optional.
modify-frame-parameters handles nil for FRAME.
(Window Frame Parameters): menu-bar-lines and tool-bar-lines
are all-or-nothing for certain toolkits.
Mention parameter wait-for-wm.
(Frames and Windows): In frame-first-window and frame-selected-window
the arg is optional.
(Input Focus): In redirect-frame-focus the second arg is optional.
(Window System Selections): Mention selection type CLIPBOARD.
Mention data-type UTF8_STRING.
Mention numbering of cut buffers.
(Resources): Describe x-resource-name.

(read_avail_input): Change buf to pinter to read_avail_input_buf.
Use in_read_avail_input to handle re-entrance; when re-entered,
fully initialize and use tmp_buf array instead of read_avail_input_buf.

buf array was allocated on the stack.
(prev_read): Remove variable.
(read_avail_input_buf): New static event buffer array.
(in_read_avail_input): New static variable to avoid re-entrancy.
(read_avail_input): Change buf to pinter to read_avail_input_buf.
Use in_read_avail_input to guard against re-entry.
Do not initialize read_avail_input_buf here; instead assume it
is always cleared on entry.  To ensure that, we clear (just) the
entries that were used before we return.
(init_keyboard): Initialize read_avail_input_buf here.

(Overlays): Explain overlays use markers.
(Managing Overlays): Explain front-advance and rear-advance
in more detail.