Problem: undefined behaviour upper/lower function ptrs
Solution: Fix UBSAN error in regexp and simplify upper/lowercase
modifier code
The implementation of \u / \U / \l / \L modifiers in the substitute
command relies on remembering the state by setting function pointers on
func_all/func_one in the code. The code signature of `fptr_T` is
supposed to return void* (due to C function signatures not being able to
return itself due to type recursion), and the definition of the
functions (e.g. to_Upper) didn't follow this rule, and so the code tries
to cast functions of different signatures, resulting in undefined
behavior error under UBSAN in Clang 17. See vim/vim#12745.
We could just fix `do_Upper`/etc to just return void*, which would fix
the problem. However, these functions actually do not need to return
anything at all. It used to be the case that there was only one pointer
"func" to store the pointer, which is why the function needs to either
return itself or NULL to indicate whether it's a one time or ongoing
modification. However, c2c355df6f094cdb9e599fd395a78c14486ec697
(7.3.873) already made that obsolete by introducing `func_one` and
`func_all` to store one-time and ongoing operations separately, so these
functions don't actually need to return anything anymore because it's
implicit whether it's a one-time or ongoing operation. Simplify the code
to reflect that.
closes: vim/vim#13117d25021cf03
Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>
runtime(netrw): fix filetype detection for remote editing files
closes: vim/vim#12990closes: vim/vim#12992
this partially reverses commit 71badf9 by commenting out the line that
intentionally sets the filetype to an empty string.
d8b86c937a
Co-authored-by: Christian Brabandt <cb@256bit.org>
Problem:
With incremental injection parsing, injected languages' parsers parse
only the relevant regions and stores the result in _trees with the index
of the corresponding region. Therefore, there can be holes in _trees.
Solution:
* Use generic table functions where appropriate.
* Fix type annotations and docs.
Problem: Cannot use an import in 'foldexpr'.
Solution: Set the script context to where 'foldexpr' was set. (closesvim/vim#9584)
Fix that the script context was not set for all buffers.
e70dd11ef4
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Vim9: ":put =expr" does not handle a list properly.
Solution: Use the same logic as eval_to_string_eap(). (closesvim/vim#7684)
883cf97f10
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem:
It doesn't make much sense to flatten each region (= list of ranges).
This coincidentally worked for region with a single range.
Solution:
Custom function for combining regions.
Problem
---
If a highlighter query returns a significant number of predicate
non-matches, the highlighter will scan well past the end of the window.
Solution
---
In the iterator returned from `iter_captures`, accept an optional
parameter `end_line`. If no parameter provided, the behavior is
unchanged, hence this is a non-invasive tweak.
Fixes: #25113nvim-treesitter/nvim-treesitter#5057
`marktree_move` is making the tree out of order at:
be10d65bfa/src/nvim/marktree.c (L1188)
Because `key` is at the new position, and `x->key[new_i]` is also at the
new position, this comparison spuriously returns true, which causes
`x->key[i]` to be updated in-place even when it needs to be moved.
This causes crashes down the line, since the ordering of `MTNode.key` is
an invariant that must be preserved.
Fixes: #25157
If you would insert element X at position j, then if you are moving that
same element X from position i < j, you should move it to position j -
1, because you are losing an element.
This error caused a gap to be left in the array, so that it looked like
[x, null, y] instead of [x, y], where len = 2. This triggered #25147.
Fixes: #25147
When tabstop and shiftwidth are not equal, tabs are inserted as individual
spaces and then rewritten as tab characters in a second pass. That second pass
did not call changed_bytes which resulted in events being omitted.
Fixes#25092
