Most of the messy things when changing a non-current buffer is
not about the buffer, it is about windows. In particular, it is about
`curwin`.
When editing a non-current buffer which is displayed in some other
window in the current tabpage, one such window will be "borrowed" as the
curwin. But this means if two or more non-current windows displayed the buffers,
one of them will be treated differenty. this is not desirable.
In particular, with nvim_buf_set_text, cursor _column_ position was only
corrected for one single window. Two new tests are added: the test
with just one non-current window passes, but the one with two didn't.
Two corresponding such tests were also added for nvim_buf_set_lines.
This already worked correctly on master, but make sure this is
well-tested for future refactors.
Also, nvim_create_buf no longer invokes autocmds just because you happened
to use `scratch=true`. No option value was changed, therefore OptionSet
must not be fired.
ml_get_buf() takes a third parameters to indicate whether the
caller wants to mutate the memline data in place. However
the vast majority of the call sites is using this function
just to specify a buffer but without any mutation. This makes
it harder to grep for the places which actually perform mutation.
Solution: Remove the bool param from ml_get_buf(). it now works
like ml_get() except for a non-current buffer. Add a new
ml_get_buf_mut() function for the mutating use-case, which can
be grepped along with the other ml_replace() etc functions which
can modify the memline.
Problem: Wrong display with wrapping virtual text or unprintable chars,
'showbreak' and 'smoothscroll'.
Solution: Don't skip cells taken by 'showbreak' in screen lines before
"w_skipcol". Combined "n_skip" and "skip_cells".
closes: vim/vim#12597b557f48982
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 easy way to process postponed work. (Paul Jolly)
Solution: Add the SafeState autocommand event.
8aeec40207
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Temporarily changing current window in a script causes
CursorMoved to be triggerd.
Solution: Don't trigger CursorMoved if neither curwin nor cursor
changed between two checks.
Problem: Cursor not adjusted when near top or bottom of window and
'splitkeep' is not "cursor".
Solution: Move boundary checks to outer cursor move functions, inner
functions should only return valid cursor positions. (Luuk van
Baal, closesvim/vim#12480)
a109f39ef5
Problem: Bad redrawing with spell checking, using "C" and "$" in 'cpo'.
Solution: Do not redraw the next line when "$" is in 'cpo'. (closesvim/vim#11285)
f3ef026c98
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: With spell checking, deleting a full stop at the end of a line
does not update SpellCap at the start of the next line.
Solution: Update the next line when characters have been deleted. Also when
using undo.
26f09ea54b
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: After exiting Insert mode spelling is not checked in the next
line.
Solution: When spelling is enabled redraw the next line after exiting Insert
mode in case the spell highlight needs updating.
ee09fcc9b6
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Reading before the start of the line.
Solution: When displaying "$" check the column is not negative.
e98c88c44c
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Text not scrolled when cursor moved with "g0" and "h".
Solution: Adjust w_skipcol when needed. (Luuk van Baal, closesvim/vim#12387)
8667a5678f
Problem: Making a mapping work in all modes is complicated.
Solution: Add the <Cmd> special key. (Yegappan Lakshmanan, closesvim/vim#7282,
closes 4784, based on patch by Bjorn Linse)
957cf67d50
Change docs to match Vim if it's wording is better.
Change error numbers to match Vim.
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: 'scrolloff' does not work well with 'smoothscroll'.
Solution: Make positioning the cursor a bit better. Rename functions.
c9121f798f
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Cursor position invalid when scrolling with 'smoothscroll' set.
(Ernie Rael)
Solution: Add w_valid_skipcol and clear flags when it changes. Adjust
w_skipcol after moving the cursor.
2fbabd238a
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Invalid memory access when ending insert mode.
Solution: Check if the insert_skip value is valid.
1a08a3e2a5
Co-authored-by: Bram Moolenaar <Bram@vim.org>
Problem: Cursor in wrong position when leaving insert mode.
Solution: Update the w_valid flags. Position the cursor also when not
redrawing. (closesvim/vim#12137)
c174c2e58c
Co-authored-by: Bram Moolenaar <Bram@vim.org>
drawscreen.c vs screen.c makes absolutely no sense.
The screen exists only to draw upon it, therefore helper functions
are distributed randomly between screen.c and the file that
does the redrawing. In addition screen.c does a lot of drawing on the
screen.
It made more sense for vim/vim as our grid.c is their screen.c
Not sure if we want to dump all the code for option chars into
optionstr.c, so keep these in a optionchar.c for now.
Problem: Reproducing memory access errors can be difficult.
Solution: When testing, copy each line to allocated memory, so that valgrind
can detect accessing memory before and/or after it. Fix uncovered
problems.
fa4873ccfc
Since test_override() is N/A, enable ml_get_alloc_lines when ASAN is
enabled instead, so it also applies to functional tests.
Use xstrdup() to copy the line as ml_line_len looks hard to port.
Squash the test changes from patch 9.0.0016.
Co-authored-by: Bram Moolenaar <Bram@vim.org>
This feature has long been obsolete. The 'keymap' option can be used
to support language keymaps, including hebrew and hebrewp (phonetic
mapping). There is no need to keep the old c code with hardcoded
keymaps for some languages.
Problem: Various white space and cosmetic mistakes.
Solution: Change spaces to tabs, improve comments.
6ed545e797
Co-authored-by: Bram Moolenaar <Bram@vim.org>
