Problem: Many places in the code use `findoption()` to access an option using its name, even if the option index is available. This is very slow because it requires looping through the options array over and over.
Solution: Use option index instead of name wherever possible. Also introduce an `OptIndex` enum which contains the index for every option as enum constants, this eliminates the need to pass static option names as strings.
FUNC_ATTR_* should only be used in .c files with generated headers.
Defining FUNC_ATTR_* as empty in headers causes misuses of them to be
silently ignored. Instead don't define them by default, and only define
them as empty after a .c file has included its generated header.
Problem: buffer text with composing chars are converted from UTF-8
to an array of up to seven UTF-32 values and then converted back
to UTF-8 strings.
Solution: Convert buffer text directly to UTF-8 based schar_T values.
The limit of the text size is now in schar_T bytes, which is currently
31+1 but easily could be raised as it no longer multiplies the size
of the entire screen grid when not used, the full size is only required
for temporary scratch buffers.
Also does some general cleanup to win_line text handling, which was
unnecessarily complicated due to multibyte rendering being an "opt-in"
feature long ago. Nowadays, a char is just a char, regardless if it consists
of one ASCII byte or multiple bytes.
We already have an extensive suite of static analysis tools we use,
which causes a fair bit of redundancy as we get duplicate warnings. PVS
is also prone to give false warnings which creates a lot of work to
identify and disable.
long is 32 bits on windows, while it is 64 bits on other architectures.
This makes the type suboptimal for a codebase meant to be
cross-platform. Replace it with more appropriate integer types.
Problem: [security] disallow setting env in restricted mode
Solution: Setting environment variables in restricted mode could
potentially be used to execute shell commands. Disallow this.
restricted mode: disable allow setting of environment variables
Setting environment variables in restricted mode, may have some unwanted
consequences. So, for example by setting $GCONV_PATH in restricted mode
and then calling the iconv() function, one may be able to execute some
unwanted payload, because the `iconv_open()` function internally uses
the `$GCONV_PATH` variable to find its conversion data.
So let's disable setting environment variables, even so this is no
complete protection, since we are not clearing the existing environment.
I tried a few ways but wasn't successful :(
One could also argue to disable the iconv() function completely in
restricted mode, but who knows what other API functions can be
influenced by setting some other unrelated environment variables.
So let's leave it as it is currently.
closes: vim/vim#13394
See: https://huntr.com/bounties/b0a2eda1-459c-4e36-98e6-0cc7d7faccfe/6b89dd6a72
Co-authored-by: Christian Brabandt <cb@256bit.org>
Problem: gcc overflow-warning for f_resolve
Solution: use pointer p instead of pointer q[-1]
Suppress the following warning:
```
filepath.c: In function ‘f_resolve’:
filepath.c:2162:27: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
2162 | q[-1] = NUL;
```
Closes: vim/vim#13352closes: vim/vim#13353215c3261a2
Co-authored-by: Ken Takata <kentkt@csc.jp>
Problem: The style guide states that all switch statements that are not conditional on an enum must have a `default` case, but does not give any explicit guideline for switch statements that are conditional on enums. As a result, a `default` case is added in many enum switch statements, even when the switch statement is exhaustive. This is not ideal because it removes the ability to have compiler errors to easily detect unchanged switch statements when a new possible value for an enum is added.
Solution: Add explicit guidelines for switch statements that are conditional on an enum, clarifying that a `default` case is not necessary if the switch statement is exhaustive. Also refactor pre-existing code with unnecessary `default` cases.
long is 32 bits on windows, while it is 64 bits on other architectures.
This makes the type suboptimal for a codebase meant to be
cross-platform. Replace it with more appropriate integer types.
This finalizes the long running refactor from the old TUI-focused grid
implementation where text-drawing cursor was not separated from the
visible cursor.
Still, the pattern of setting cursor position together with updating a
line was convenient. Introduce grid_line_cursor_goto() to still allow
this but now being explicit about it.
Only having batched drawing functions makes code involving drawing
a bit longer. But it is better to be explicit, and this highlights
cases where multiple small redraws can be grouped together. This was the
case for most of the changed places (messages, lastline, and :intro)
Problem:
The swapfile "E325: ATTENTION" dialog is displayed when editing a file
already open in another (running) Nvim. Usually this behavior is
annoying and irrelevant:
- "Recover" and the other options ("Open readonly", "Quit", "Abort") are
almost never wanted.
- swapfiles are less relevant for "multi-Nvim" since 'autoread' is
enabled by default.
- Even less relevant if user enables 'autowrite'.
Solution:
Define a default SwapExists handler which does the following:
1. If the swapfile is owned by a running Nvim process, automatically
chooses "(E)dit anyway" (caveat: this creates a new, extra swapfile,
which is mostly harmless and ignored except by `:recover` or `nvim -r`.
2. Shows a 1-line "ignoring swapfile..." message.
3. Users can disable the default SwapExists handler via `autocmd! nvim_swapfile`.
Problem: No support for writing extended attributes
Solution: Add extended attribute support for linux
It's been a long standing issue, that if you write a file with extended
attributes and backupcopy is set to no, the file will loose the extended
attributes.
So this patch adds support for retrieving the extended attributes and
copying it to the new file. It currently only works on linux, mainly
because I don't know the different APIs for other systems (BSD, MacOSX and
Solaris). On linux, this should be supported since Kernel 2.4 or
something, so this should be pretty safe to use now.
Enable the extended attribute support with normal builds.
I also added it explicitly to the :version output as well as make it
able to check using `:echo has("xattr")`, to have users easily check
that this is available.
In contrast to the similar support for SELINUX and SMACK support (which
also internally uses extended attributes), I have made this a FEAT_XATTR
define, instead of the similar HAVE_XATTR.
Add a test and change CI to include relevant packages so that CI can
test that extended attributes are correctly written.
closes: vim/vim#306closes: vim/vim#13203e085dfda5d
Co-authored-by: Christian Brabandt <cb@256bit.org>
- Move vimoption_T to option.h
- option_defs.h is for option-related types
- option_vars.h corresponds to Vim's option.h
- option_defs.h and option_vars.h don't include each other
Added to support MessagePack-RPC fully compliant clients that do
not return responses in request order.
Although it is currently not an efficient implementation for full
compliance and full compliance cannot be guaranteed, the addition
of the new client type `msgpack-rpc` creates a situation where "if
the client type is `msgpack-rpc`, then backward compatibility is
ignored and full compliance with MessagePack- RPC compliance is
justified even if backward compatibility is ignored if the client
type is `msgpack-rpc`.
$COLORTERM is set in the terminal emulator based on the value of
'termguicolors' ("truecolor" if &tgc is set, 256 otherwise), but ONLY if
$COLORTERM is also set in the parent terminal emulator.
This is an unnecessary restriction that can cause issues in some cases.
For instance, $COLORTERM is stripped by default by OpenSSH, so is not
present in an SSH session. The terminal emulator still supports 24 bit
color, so the lack of $COLORTERM is not a reliable indicator. When an
application runs in Nvim's :terminal it thus has no way to know whether
or not true color is supported.
Instead, setting it unconditionally based on 'termguicolors' uses the
user's own preferences to infer if 24-bit color is supported, rather
than depending on the (unreliable) presence of $COLORTERM. If
'termguicolors' is set in a terminal that does not support true color
then the colors in Nvim will already look bad. Enabling them for
applications in the terminal emulator will not make it any worse.
If 'termguicolors' is not set then the value of $COLORTERM from the
parent terminal (if any) is forwarded to Nvim's :terminal.
Fixes: https://github.com/neovim/neovim/issues/24717
Problem: The mouse code is spread out.
Solution: Move all the mouse code to mouse.c. (Yegappan Lakshmanan,
closesvim/vim#4959)
b20b9e14dd
Also move getmousepos() there.
N/A patches for version.c:
vim-patch:8.1.2070: mouse code is spread out
Problem: Mouse code is spread out.
Solution: Move mouse terminal code parsing to mouse.c. (Yegappan Lakshmanan,
closesvim/vim#4966)
b8ff5c271e
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: No tests for state().
Solution: Add tests. Clean up some feature checks. Make "a" flag work.
c258549032
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: SafeStateAgain not triggered if callback uses feedkeys().
Solution: Check for safe state in the input loop. Make log messages easier
to find. Add 'S' flag to state().
d103ee7843
Include misc1.c change from patch 8.1.2062.
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: reverse() on string doesn't work in compiled function.
Solution: Accept string in argument type check. (Yegappan Lakshmanan,
closesvim/vim#12377)
f9dc278946
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Problem: reverse() does not work for a String.
Solution: Implement reverse() for a String. (Yegappan Lakshmanan,
closesvim/vim#12179)
03ff1c2dde
vim-patch:9.0.1738: Duplicate code to reverse a string
Problem: Duplicate code to reverse a string
Solution: Move reverse_text() to strings.c and remove string_reverse().
closes: vim/vim#128474dd266cb66
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Problem: missing winid argument for virtcol()
Solution: Add a {winid} argument to virtcol()
Other functions col(), charcol() and virtcol2col() support a {winid}
argument, so it makes sense for virtcol() to also support than.
Also add test for virtcol2col() with 'showbreak' and {winid}.
closes: vim/vim#12633825cf813fa
Problem: Fix regression in {func} argument of reduce()
Solution: pass function name as string again
Before patch 9.0.0548, passing a string as {func} argument of reduce()
is treated as a function name, but after patch 9.0.0548 it is treated as
an expression instead, which is useless as reduce() doesn't set any v:
variables. This PR restores the behavior of {func} before that patch.
Also correct an emsg() call, as e_string_list_or_blob_required doesn't
contain format specifiers.
closes: vim/vim#12824ad0c442f1f
Problem: wrong error messages when passing wrong types to count()
Solution: fix it
This fixes two problems:
1. When passing wrong type to {ic} argument of count(), two error
messages are given, the second of which is misleading.
2. When passing wrong type to {comp} argument of count(), the error
message doesn't mention that {comp} may be a String.
closes: vim/vim#128254f389e7c0f
Problem: Implementation of some list functions too complicated.
Solution: Refactor do_sort_uniq(), f_count() and extend() (Yegappan
Lakshmanan, closesvim/vim#9378)
d92813a598
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Problem: reduce() with a compiled lambda could be faster.
Solution: Call eval_expr_typval() instead of call_func() directly.
f1c60d4bf1
Co-authored-by: Bram Moolenaar <Bram@vim.org>
