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vim-patch:8.2.4734: getcharpos() may change a mark position (#18077)

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Problem:    getcharpos() may change a mark position.
Solution:   Copy the mark position. (closes vim/vim#10148)
3caf1cce2b
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zeertzjq 2022-04-11 21:29:18 +08:00 committed by GitHub
parent f0d07dcb74
commit 356cff78ec
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 23 additions and 20 deletions
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33
src/nvim/eval.c
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@ -7739,7 +7739,6 @@ pos_T *var2fpos(const typval_T *const tv, const bool dollar_lnum, int *const ret
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
static pos_T pos;
pos_T *pp;
// Argument can be [lnum, col, coladd].
if (tv->v_type == VAR_LIST) {
@ -7799,34 +7798,32 @@ pos_T *var2fpos(const typval_T *const tv, const bool dollar_lnum, int *const ret
if (name == NULL) {
return NULL;
}
if (name[0] == '.') { // Cursor.
pos.lnum = 0;
if (name[0] == '.') {
// cursor
pos = curwin->w_cursor;
if (charcol) {
pos.col = buf_byteidx_to_charidx(curbuf, pos.lnum, pos.col);
}
return &pos;
}
if (name[0] == 'v' && name[1] == NUL) { // Visual start.
} else if (name[0] == 'v' && name[1] == NUL) {
// Visual start
if (VIsual_active) {
pos = VIsual;
} else {
pos = curwin->w_cursor;
}
} else if (name[0] == '\'') {
// mark
const pos_T *const pp = getmark_buf_fnum(curbuf, (uint8_t)name[1], false, ret_fnum);
if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0) {
return NULL;
}
pos = *pp;
}
if (pos.lnum != 0) {
if (charcol) {
pos.col = buf_byteidx_to_charidx(curbuf, pos.lnum, pos.col);
}
return &pos;
}
if (name[0] == '\'') { // Mark.
pp = getmark_buf_fnum(curbuf, (uint8_t)name[1], false, ret_fnum);
if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0) {
return NULL;
}
if (charcol) {
pp->col = buf_byteidx_to_charidx(curbuf, pp->lnum, pp->col);
}
return pp;
}
pos.coladd = 0;

10
src/nvim/testdir/test_cursor_func.vim
View File

@ -140,12 +140,12 @@ func Test_getcharpos()
call assert_fails('call getcharpos({})', 'E731:')
call assert_equal([0, 0, 0, 0], getcharpos(0))
new
call setline(1, ['', "01\tà4è678", 'Ⅵ', '012345678'])
call setline(1, ['', "01\tà4è678", 'Ⅵ', '012345678', ' │ x'])
" Test for '.' and '$'
normal 1G
call assert_equal([0, 1, 1, 0], getcharpos('.'))
call assert_equal([0, 4, 1, 0], getcharpos('$'))
call assert_equal([0, 5, 1, 0], getcharpos('$'))
normal 2G6l
call assert_equal([0, 2, 7, 0], getcharpos('.'))
normal 3G$
@ -159,6 +159,12 @@ func Test_getcharpos()
delmarks m
call assert_equal([0, 0, 0, 0], getcharpos("'m"))
" Check mark does not move
normal 5Gfxma
call assert_equal([0, 5, 5, 0], getcharpos("'a"))
call assert_equal([0, 5, 5, 0], getcharpos("'a"))
call assert_equal([0, 5, 5, 0], getcharpos("'a"))
" Test for the visual start column
vnoremap <expr> <F3> SaveVisualStartCharPos()
let g:VisualStartPos = []