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make get_region_bytecount end-exclusive

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This commit is contained in:
chentau
2021-05-06 20:37:09 -07:00
parent a847abc21b
commit 13a9bd006f
3 changed files with 28 additions and 15 deletions
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2
src/nvim/api/buffer.c
View File

@@ -442,7 +442,7 @@ void nvim_buf_set_lines(uint64_t channel_id,
goto end;
}
bcount_t deleted_bytes = MAX(get_region_bytecount(start, end, 0, 0)-1, 0);
bcount_t deleted_bytes = get_region_bytecount(curbuf, start, end, 0, 0);
// If the size of the range is reducing (ie, new_len < old_len) we
// need to delete some old_len. We do this at the start, by

37
src/nvim/ops.c
View File

@@ -1677,8 +1677,8 @@ int op_delete(oparg_T *oap)
curbuf_splice_pending++;
pos_T startpos = curwin->w_cursor; // start position for delete
bcount_t deleted_bytes = get_region_bytecount(
startpos.lnum, oap->end.lnum, startpos.col,
oap->end.col) - !oap->inclusive;
curbuf, startpos.lnum, oap->end.lnum, startpos.col,
oap->end.col) + oap->inclusive;
truncate_line(true); // delete from cursor to end of line
curpos = curwin->w_cursor; // remember curwin->w_cursor
@@ -6300,19 +6300,32 @@ bool op_reg_set_previous(const char name)
return true;
}
bcount_t get_region_bytecount(linenr_T start_lnum, linenr_T end_lnum,
colnr_T start_col, colnr_T end_col)
/// Get the byte count of buffer region. End-exclusive.
///
/// @return number of bytes
bcount_t get_region_bytecount(buf_T *buf, linenr_T start_lnum,
linenr_T end_lnum, colnr_T start_col,
colnr_T end_col)
{
const char *first = (const char *)ml_get(start_lnum);
linenr_T max_lnum = buf->b_ml.ml_line_lnum;
if (start_lnum > max_lnum) {
return 0;
}
if (start_lnum == end_lnum) {
return end_col - start_col;
}
const char *first = (const char *)ml_get_buf(buf, start_lnum, false);
bcount_t deleted_bytes = (bcount_t)STRLEN(first) - start_col + 1;
if (start_lnum == end_lnum) {
return deleted_bytes - ((bcount_t)STRLEN(first) - end_col + 1);
}
for (linenr_T i = 1; i <= end_lnum-start_lnum-1; i++) {
deleted_bytes += (bcount_t)STRLEN(
ml_get(start_lnum + i)) + 1;
if (start_lnum + i > max_lnum) {
return deleted_bytes;
}
return deleted_bytes + end_col + 1;
deleted_bytes += (bcount_t)STRLEN(
ml_get_buf(buf, start_lnum + i, false)) + 1;
}
if (end_lnum > max_lnum) {
return deleted_bytes;
}
return deleted_bytes + end_col;
}

6
test/functional/lua/buffer_updates_spec.lua
View File

@@ -962,20 +962,20 @@ describe('lua: nvim_buf_attach on_bytes', function()
local check_events = setup_eventcheck(verify, {"AAA", "BBB"})
-- delete
command("lua vim.api.nvim_buf_set_lines(0, 0, 1, true, {})")
meths.buf_set_lines(0, 0, 1, true, {})
check_events {
{ "test1", "bytes", 1, 3, 0, 0, 0, 1, 0, 4, 0, 0, 0 };
}
-- add
command("lua vim.api.nvim_buf_set_lines(0, 0, 0, true, {'asdf'})")
meths.buf_set_lines(0, 0, 0, true, {'asdf'})
check_events {
{ "test1", "bytes", 1, 4, 0, 0, 0, 0, 0, 0, 1, 0, 5 };
}
-- replace
command("lua vim.api.nvim_buf_set_lines(0, 0, 1, true, {'asdf', 'fdsa'})")
meths.buf_set_lines(0, 0, 1, true, {'asdf', 'fdsa'})
check_events {
{ "test1", "bytes", 1, 5, 0, 0, 0, 1, 0, 5, 2, 0, 10 };
}