Ensure we ignore SIGHUP once the TerminalUI is gone as it will be
sent again on fork, fix the parent process terminating due to trying
to write to stdout after it was closed.
Fixes#4960
This is currently broken on various corner cases and breaks the
"master branch should be good for day to day work" implicit rule,
ongoing work to stabilize this feature will take place on the
no-cursor-move-on-scroll branch until its deemed ready.
This reverts commit 1e38045d70.
Closes#4963
Kakoune now does not touch cursors when scrolling. It checks
if either the buffer or selections has been modified since
last redraw.
Fixes#4124Fixes#2844
RegionsHighlighter::create_region() validates the highlighter type argument
but RegionsHighlighter::create_default_region() assumes it is correct,
segfaulting from dereferencing a null pointer if the given type isn't in
the highlighter registry HashMap.
@PJungkamp reported this in https://github.com/mawww/kakoune/issues/4959
with a simple recipe to reproduce:
:add-highlighter shared/test regions
:add-highlighter shared/test/ default-region invalid highlighter
:add-highlighter window/test ref test
Validate the type argument in RegionsHighlighter::create_default_region()
in the same way as RegionsHighlighter::create_region().
The current exponential behaviour does not seem that useful, it seems
more predictible that pressing `+` twice would end up with 3 copies
of the original selections instead of 4.
Fixes#4533
Do not rely on timing but wait for Kakoune to redraw which is what
we actually need: Mouse clicks rely on the current display buffer
to resolve the buffer location, so we need to wait for a redraw
to happen with `ui_out`
Commits e49c0fb04 (unmap: fail if the mapping is currently executing,
2023-05-14) 42be0057a (map: fail if key is currently executing,
2023-06-24) fixed potential use-after-free issues. By doing so,
it broke configurations that in practice have not triggered any
crashes [1] [2].
For example with,
set -remove global autocomplete insert
hook global InsertCompletionShow .* %{
map window insert <esc> <c-o>
}
hook global InsertCompletionHide .* %{
unmap window insert <esc> <c-o>
}
The execution of the <esc> mapping triggers InsertCompletionHide fails
at unmapping. This seems legit and I don't see an obvious alternative
way to write it (InsertIdle would not be correct though it would work
in practice).
Fix the regression by allowing map and unmap again while keeping the
mappings alive until they have finished executing.
Applying map/unmap immediately seems like the most obvious semantics.
Alternatively, we could apply them in between key presses.
[1]: <https://github.com/kak-lsp/kak-lsp/issues/689>
[2]: <https://github.com/alexherbo2/auto-pairs.kak/issues/60>
This makes Kakoune behave more consistently when using it for Zig.
Empty comments are already auto-removed from the C-family and Python.
In this PR, string literals that start with \\ are not removed in purpose.
If during execution of a mapping, that same mapping is replaced,
there is undefined behavior because we destroy a mapping that we are
still iterating over.
I have been using this mapping inside my kakrc to re-source the kakrc.
map global user s %{:source "%val{config}/kakrc"<ret>} -docstring 'source "%val{config}/kakrc"'
Now <space>s happens to not trigger undefined behavior because the
mapping stays the same.
However it triggers an assertion added by Commit e49c0fb04 (unmap:
fail if the mapping is currently executing, 2023-05-14), specifically
the destructor of ScopedSetBool that guards mapping execution.
Fix these by banning map of a key that is executing, just like we
did for unmap.
Alternative solution: we could allow mapping (and even unmapping)
keys at any time and keep them alive by moving them into a trash can,
like we do for clients and others.
I dedicate any and all copyright interest in this software to the
public domain. I make this dedication for the benefit of the public at
large and to the detriment of my heirs and successors. I intend this
dedication to be an overt act of relinquishment in perpetuity of all
present and future rights to this software under copyright law.
When a line only contains non-range atoms we can end-up accessing
past the end atom.
Add a test that shows the issue when run with valgrind, it is
unfortunately quite hard to trigger a crash because the invalidly
accessed byte usually leads to the correct code path being taken
(when != DisplayAtom::Range) so we have only 1 in 255 chance of
triggerring a crash.
Fixes#4927
