It will be reallocated soon enough when the size increases again.

Also drop an old debugging fragment.

There shouldn't be two separate variables (but with the same name) that
count the number of digits seen.  Fuse them into a single static var.

This fixes https://savannah.gnu.org/bugs/?52863.

Use the same method as in parse_verbatim_kbinput() for Unicode input.

These three functions are needed only when both linter and speller
are available.

Each leading tab is converted to two tabs, and any leading four spaces
is converted to one tab.  The intended tab size (for keeping most lines
within 80 columns) is now four.

This fixes https://savannah.gnu.org/bugs/?52651

.
Reported-by: David Lawrence Ramsey <pooka109@gmail.com>

The escape sequence "Esc [ Z" is a backtab on most supported terminals,
so make sure convert_sequence() treats it as such.

When the mark is on, instead of letting a <Tab> simply insert a Tab
character at the cursor position, let it indent the marked region.
Original-idea-by: Chris Allegretta <chrisa@asty.org>

The pointer not being NULL is enough indication that the mark is set.

Also, rename the pointer from 'mark_begin' to simply 'mark', since
the former is kind of pleonastic.

Also, properly refer to numreplaced as signed, since it's ssize_t
(even though it's only shown when positive).

Initialize 'breaking_col' to what it needs to be when the current chunk
consists of only a tab -- a tab that spreads across both start and end
of the chunk -- so that the last 'if' can move into the preceding one,
which allows the elision of 'char_len'.

This fixes https://savannah.gnu.org/bugs/?52258

.
Reported-by: Peter Passchier <peter@passchier.net>

Allow the user to record and run a single macro.  The default binding
for starting and stopping the recording is M-: (Alt + colon) and for
running the macro M-; (Alt + semicolon).

This fulfills https://savannah.gnu.org/bugs/?50314

.
Requested-by: Peter Passchier <peter@passchier.net>
Signed-off-by: Marco Diego Aurélio Mesquita <marcodiegomesquita@gmail.com>
Signed-off-by: Benno Schulenberg <bensberg@telfort.nl>

This also removes a call of ungetch(), as it does not seem to be
needed any more: nano does not lose a character when waking from
suspension.

This fixes https://savannah.gnu.org/bugs/?52149

.
Reported-by: David Lawrence Ramsey <pooka109@gmail.com>

Inspired-by: Mike Frysinger <vapier@gentoo.org>

This kind of addresses https://savannah.gnu.org/bugs/?51685.