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vim-patch:9.1.0430: getregionpos() doesn't handle one char selection (#28924)

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Problem:  getregionpos() doesn't handle one char selection.
Solution: Handle startspaces differently when is_oneChar is set.
          Also add a test for an exclusive charwise selection with
          multibyte chars (zeertzjq)

closes: vim/vim#14825

52a6f34887
This commit is contained in:
zeertzjq
2024-05-23 06:08:24 +08:00
committed by GitHub
parent 3d43bdc81e
commit 5cbd6d9b9f
6 changed files with 81 additions and 17 deletions
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7
src/nvim/ops.c
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@@ -4253,11 +4253,12 @@ void charwise_block_prep(pos_T start, pos_T end, struct block_def *bdp, linenr_T
{
colnr_T startcol = 0;
colnr_T endcol = MAXCOL;
bool is_oneChar = false;
colnr_T cs, ce;
char *p = ml_get(lnum);
bdp->startspaces = 0;
bdp->endspaces = 0;
bdp->is_oneChar = false;
bdp->start_char_vcols = 0;
if (lnum == start.lnum) {
@@ -4287,7 +4288,7 @@ void charwise_block_prep(pos_T start, pos_T end, struct block_def *bdp, linenr_T
&& utf_head_off(p, p + endcol) == 0)) {
if (start.lnum == end.lnum && start.col == end.col) {
// Special case: inside a single char
is_oneChar = true;
bdp->is_oneChar = true;
bdp->startspaces = end.coladd - start.coladd + inclusive;
endcol = startcol;
} else {
@@ -4300,7 +4301,7 @@ void charwise_block_prep(pos_T start, pos_T end, struct block_def *bdp, linenr_T
if (endcol == MAXCOL) {
endcol = ml_get_len(lnum);
}
if (startcol > endcol || is_oneChar) {
if (startcol > endcol || bdp->is_oneChar) {
bdp->textlen = 0;
} else {
bdp->textlen = endcol - startcol + inclusive;