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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
Download Patch File Download Diff File Expand all files Collapse all files

4
src/nvim/eval.lua
View File

@@ -4433,8 +4433,8 @@ M.funcs = {
the offset in screen columns from the start of the character.
E.g., a position within a <Tab> or after the last character.
If the "off" number of an ending position is non-zero, it is
the character's number of cells included in the selection,
otherwise the whole character is included.
the offset of the character's first cell not included in the
selection, otherwise all its cells are included.
]=],
name = 'getregionpos',
params = { { 'pos1', 'table' }, { 'pos2', 'table' }, { 'opts', 'table' } },

20
src/nvim/eval/funcs.c
View File

@@ -3041,7 +3041,6 @@ static void f_getregionpos(typval_T *argvars, typval_T *rettv, EvalFuncData fptr
}
for (linenr_T lnum = p1.lnum; lnum <= p2.lnum; lnum++) {
struct block_def bd;
pos_T ret_p1, ret_p2;
if (region_type == kMTLineWise) {
@@ -3050,19 +3049,34 @@ static void f_getregionpos(typval_T *argvars, typval_T *rettv, EvalFuncData fptr
ret_p2.col = MAXCOL;
ret_p2.coladd = 0;
} else {
struct block_def bd;
if (region_type == kMTBlockWise) {
block_prep(&oa, &bd, lnum, false);
} else {
charwise_block_prep(p1, p2, &bd, lnum, inclusive);
}
if (bd.startspaces > 0) {
if (bd.is_oneChar) { // selection entirely inside one char
if (region_type == kMTBlockWise) {
ret_p1.col = bd.textcol;
ret_p1.coladd = bd.start_char_vcols - (bd.start_vcol - oa.start_vcol);
} else {
ret_p1.col = p1.col + 1;
ret_p1.coladd = p1.coladd;
}
} else if (bd.startspaces > 0) {
ret_p1.col = bd.textcol;
ret_p1.coladd = bd.start_char_vcols - bd.startspaces;
} else {
ret_p1.col = bd.textcol + 1;
ret_p1.coladd = 0;
}
if (bd.endspaces > 0) {
if (bd.is_oneChar) { // selection entirely inside one char
ret_p2.col = ret_p1.col;
ret_p2.coladd = ret_p1.coladd + bd.startspaces;
} else if (bd.endspaces > 0) {
ret_p2.col = bd.textcol + bd.textlen + 1;
ret_p2.coladd = bd.endspaces;
} else {

7
src/nvim/ops.c
View File

@@ -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;