Print routines are not asynchronous-safe.
But... the only reason the call of kill() could return an error code
is when the relevant process has already terminated -- which is not
a problem, because that was the goal of calling kill().
This fixes https://savannah.gnu.org/bugs/?54409.
Reported-by: Daniel Kozovsky <dkozovsk@redhat.com>
As the help viewer is almost a normal buffer, commands that make sense
-- like searching backwards, and searching the previous occurrence --
should work in the help viewer too.
In addition, show all Search commands prominently in the help lines of
the help viewer, so that users are likely to notice them and will maybe
infer that they work in the editor itself too.
This fixes https://savannah.gnu.org/bugs/?54368.
With-help-from: David Lawrence Ramsey <pooka109@gmail.com>
Put "Where Was" in its place, to make the symmetry of ^W/M-W/^Q/M-Q
somewhat clearer. Also, conditionally reshuffle "Save File", to try
and keep menu items nicely paired.
The undo item for ENTER should record the file size *before* the amount
of auto-indentation whitespace is added to it.
This fixes https://savannah.gnu.org/bugs/?54344.
Reported-by: Liu Hao <lh_mouse@126.com>
Bind the until-now unbound function 'cutwordright' to <Ctrl+Delete>.
The complementary function, 'cutwordleft', is not bound by default
because on many terminals the keystroke <Ctrl+Backspace> generates
^H -- the canonical ASCII backspace character. We cannot change the
existing action of ^H without upsetting some users.
Signed-off-by: Marco Diego Aurélio Mesquita <marcodiegomesquita@gmail.com>
Signed-off-by: Benno Schulenberg <bensberg@telfort.nl>
To match the documentation and to match what the nanorc.nanorc
colors as valid.
In theory it would be possible to allow rebinding also F17...F63,
but nano does not recognize escape sequences for these high-order
function keys. As no one ever complained about unknown sequences
when pressing function keys, I am guessing that no one has these
high-order keys, or at least that no one uses them.
This fixes https://savannah.gnu.org/bugs/?54332.
Instead of being entirely silent when ^] is hit after whitespace
or punctuation, report what is lacking -- similar to M-] saying
"Not a bracket" when the cursor is not sitting on a bracket.
This makes the ^] keystroke more discoverable.
This makes things symmetrical: ^W starts a forward search, ^Q starts
a backward search, M-W searches the next occurrence forward, and M-Q
searches the next occurrence backward.
The Tabs-To-Spaces toggle is moved to M-O, and thus the More-Space
toggle is no longer bound by default.
When using option -K on an xterm-like terminal, pressing <Shift+Del>,
<Alt+Del>, or <Ctrl+Del> would enter "2~", "3~", or "5~", respectively,
into the buffer. Now it will just report an "Unknown sequence".
The crawl needs at least five rows to be perceived as a crawl, and
the widest line is 31 characters (ignoring translations, which might
be even longer). Formerly, when only two or three rows were available,
nothing was shown at all, which was puzzling. So, better do the credits
only when there is room enough for them, and print a message otherwise.
When switching to a different buffer, don't just show its name but
also the number of lines it contains. This is useful extra info.
Then use this same message when at startup multiple files are opened
and (after reading them all) we switch back to the first buffer.
(This loses, when multiple files are opened, the information about
format conversion that nano still shows when a single file is opened,
but... this bug has shown that people don't really look at this line
anyway, so... let it be. The info can still be seen when writing out
the file with ^O.)
This addresses https://savannah.gnu.org/bugs/?54047.
Just like an <Esc> before a Ctrl+letter keystroke is ignored, an <Esc>
before an Alt+letter keystroke should be ignored too -- it should not
be interpreted as if the user had typed <Esc> <Esc> letter.
This fixes https://savannah.gnu.org/bugs/?54301.
Even when we don't act on most of these combinations, at least eat up
the whole sequence so the unknown keystroke doesn't enter things like
"3~" into the buffer.
This fixes https://savannah.gnu.org/bugs/?54291.
Unlike glibc, which in getc() locks the file only when it is needed,
FreeBSD and Bionic libc will always lock the file, causing a massive
slowdown, as the system has to create and destroy a mutex each time
getc() is called.
Avoid that massive overhead by locking the file before starting to read
and unlocking it after reading is complete, and using getc_unlocked() to
read each byte. This makes reading on FreeBSD/macOS and Android anywhere
from 2 to 6 times faster, and on glibc roughly seventy percent faster.
This partially addresses https://savannah.gnu.org/bugs/?50406.
Signed-off-by: Devin Hussey <husseydevin@gmail.com>
Also, consistently refer to Latin letters and ASCII characters
where needed, and document more accepted characters.
This addresses https://savannah.gnu.org/bugs/?54071.
The 'statusbar_x' variable does not refer to a position in the status
bar, but to a position in the answer that is currently being typed at
the prompt. So... let's call it 'typing_x', for lots of contrast.
The Alt key together with Shift is a special workaround for when
Shift+PgUp and Shift+PgDn don't work on the user's terminal. But
probably it is more common to use the Ctrl key together with Shift
to select larger pieces of text. So mention this possibility.
Benno Schulenberg