Problems:
- Illegal bytes after valid UTF-8 char cause utf_cp_*_off() to fail.
- When stream isn't NUL-terminated, utf_cp_*_off() may go over the end.
Solution: Don't go over end of the char of end of the string.
writer is only ever used with FileDescriptor. We already have separate
code paths for serializing shada data into memory, see
shada_encode_regs() and friends
Functions like file_open_new() and file_open_fd_new() which just is a
wrapper around the real functions but with an extra xmalloc/xfree around
is an anti-pattern. If the caller really needs to allocate a
FileDescriptor as a heap object, it can do that directly.
FileDescriptor by itself is pretty much a pointer, or rather two:
the OS fd index and a pointer to a buffer. So most of the time an extra
pointer layer is just wasteful.
In the case of scriptin[curscript] in getchar.c, curscript used
to mean in practice:
N+1 open scripts when curscript>0
zero or one open scripts when curscript==0
Which means scriptin[0] had to be compared to NULL to disambiguate the
curscript=0 case.
Instead, use curscript==-1 to mean that are no script,
then all pointer comparisons dissappear and we can just use an array of
structs without extra pointers.
Problem: buffer-completion code too complicated and does not always
find all matches (irisjae)
Solution: do not try to anchor pattern to beginning of line or
directory-separator, always return all matches
Note: we are considering the non-fuzzy buffer-matching here.
Currently, the buffer-completion code makes 2 attempts to match a
pattern against the list of available patterns. First try is to match
the pattern and anchor it to either the beginning of the file name or
at a directory-separator (// or \\).
When a match is found, Vim returns the matching buffers and does not try
to find a match anywhere within a buffer name. So if you have opened two
buffers like /tmp/Foobar.c and /tmp/MyFoobar.c using `:b Foo` will only
complete to the first filename, but not the second (the same happens
with `getcompletion('Foo', 'buffer')`).
It may make sense, that completion priorities buffer names at directory
boundaries, but it inconsistent, may cause confusion why a certain
buffer name is not completed when typing `:b Foo<C-D>` which returns
only a single file name and then pressing Enter (to switch to that
buffer), Vim will error with 'E93: More than one match for Foo').
Similar things may happen when wiping the /tmp/Foobar.c pattern and
afterwards the completion starts completing other buffers.
So let's simplify the code and always match the pattern anywhere in the
buffer name, do not try to favor matches at directory boundaries. This
is also simplifies the code a bit, we do not need to run over the list
of buffers several times, but only twice.
fixesvim/vim#13894closes: vim/vim#140820dc0bff000
Cherry-pick test_cmdline.vim from patch 9.1.0019 as it already passes.
Co-authored-by: Christian Brabandt <cb@256bit.org>
Problem: using "C" and 've=all' set, doesn't include composing chars
when changing a line, keeps the composing chars for whatever
is typed afterwards.
Solution: Use mb_head_off() and mb_ptr2len() instead of mb_tail_off().
(zeertzjq)
closes: vim/vim#14083048761bcd4
Problem: Virtual text with text_wrap 'wrap' was effectively being
truncated by a break conditional on the EOL list character
being added to the screen line. (BigPeet)
Solution: Remove the condition that was leading to the early break and
instead fix a similar but incorrectly written outer condition
that checks if there is more to add at the end of the screen
line. (Dylan Thacker-Smith)
Also, related:
- update comment in win_line()
- remove no longer necessary at_end_str variable in win_line()
fixes: vim/vim#12725closes: vim/vim#14079f548ae7b63
Co-authored-by: Dylan Thacker-Smith <dylan.ah.smith@gmail.com>
os_getenv("FOO") caches the result when $FOO is set to something
non-empty. However, when $FOO was not set, every new call to
os_getenv("FOO") would allocate a temporary scratch buffer to
immediately throw away.
This has an huge impact e.g. on logging which depends on potentially
non-set env vars.
Problem: Naming a non-pointer variable "oap" is strange.
Solution: Rename it to "oa". Also prevent using freed memory in case of
memory allocation failure. (zeertzjq)
closes: vim/vim#140755e3674b42d
Problem: Internal error when passing mark in another buffer to
getregion().
Solution: Don't allow marks in another buffer (zeertzjq)
closes: vim/vim#14076
Internal error when passing mark in another buffer to getregion()
421b597470
Problem: hard to get visual region using Vim script
Solution: Add getregion() Vim script function
(Shougo Matsushita, Jakub Łuczyński)
closes: vim/vim#13998closes: vim/vim#115793f905ab3c4
Cherry-pick changes from patch 9.1.0122, with :echom instead of :echow.
Co-authored-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Co-authored-by: Jakub Łuczyński <doubleloop@o2.pl>
To align the output of `nvim_get_hl` with its documentation -- which
points to `nvim_set_hl`, remove mentions of the keys `foreground`,
`background` and `special`.
The long keys are are still supported (via fallback checks inside
`dict2hlattrs`), but the `fg`, `bg` and `sp` keys are preferenced.
As only a few API functions make use of explicit freeing of the return
value, make it opt-in instead. The arena is always present under the
hood, so `Arena *arena` arg now doesn't mean anything other than getting
access to this arena. Also it is in principle possible to return an
allocated value while still using the arena as scratch space for other
stuff (unlikely, but there no reason to not allow it).
The way ml_replace_buf is implemented makes it unfriendly for
being used in a loop: every call allocates a scratch buffer for putting
the line into the "dirty" state. This then immediately needs to be freed
as the next ml_replace_buf and/or ml_append_buf call will flush that buffer.
It's better to later pay the price of allocating the scratch buffer only if
the line is being immediately edited (likely when using the API to only
change one line) with an extra memcpy, than allocating that buffer
multiple times every time the API is called.
Of course, a separate xmalloc/xfree cycle for each time the dirty line
changes is unwanted to begin with. But fixing that is a later refactor.
Problem: Using freed memory with full tag stack and user data
(Konstantin Khlebnikov)
Solution: Clear the user data pointer of the newest entry.
(zeertzjq, Konstantin Khlebnikov)
fixes: neovim/neovim#27498closes: vim/vim#14053c86bff1771
Cherry-pick Test_tag_stack() changes from patch 9.0.0767.
Co-authored-by: Konstantin Khlebnikov <koct9i@gmail.com>
Note: kSDItemHeader is something is _written_ by nvim in the shada file
to identify it for debugging purposes outside of nvim. But this data wasn't ever used by
neovim after reading the file back, So I removed the parsing of it for now.
Problem: Setting some options changes curswant unnecessarily.
Solution: Add a P_HLONLY flag that prevents changing curswant.
(zeertzjq)
closes: vim/vim#14044fcaed6a70f
