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patch 9.1.0120: hard to get visual region using Vim script

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Problem:  hard to get visual region using Vim script
Solution: Add getregion() Vim script function
          (Shougo Matsushita, Jakub Łuczyński)

closes: #13998
closes: #11579

Co-authored-by: =?UTF-8?q?Jakub=20=C5=81uczy=C5=84ski?= <doubleloop@o2.pl>
Co-authored-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Signed-off-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Shougo Matsushita
2024-02-21 00:02:45 +01:00
committed by Christian Brabandt
parent f865895c87
commit 3f905ab3c4
11 changed files with 474 additions and 68 deletions
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78
src/ops.c
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@@ -2414,6 +2414,84 @@ block_prep(
#endif
}
/*
* Get block text from "start" to "end"
*/
void
charwise_block_prep(
pos_T start,
pos_T end,
struct block_def *bdp,
linenr_T lnum,
int inclusive)
{
colnr_T startcol = 0, endcol = MAXCOL;
int is_oneChar = FALSE;
colnr_T cs, ce;
char_u *p;
p = ml_get(lnum);
bdp->startspaces = 0;
bdp->endspaces = 0;
if (lnum == start.lnum)
{
startcol = start.col;
if (virtual_op)
{
getvcol(curwin, &start, &cs, NULL, &ce);
if (ce != cs && start.coladd > 0)
{
// Part of a tab selected -- but don't
// double-count it.
bdp->startspaces = (ce - cs + 1)
- start.coladd;
if (bdp->startspaces < 0)
bdp->startspaces = 0;
startcol++;
}
}
}
if (lnum == end.lnum)
{
endcol = end.col;
if (virtual_op)
{
getvcol(curwin, &end, &cs, NULL, &ce);
if (p[endcol] == NUL || (cs + end.coladd < ce
// Don't add space for double-wide
// char; endcol will be on last byte
// of multi-byte char.
&& (*mb_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->startspaces = end.coladd
- start.coladd + inclusive;
endcol = startcol;
}
else
{
bdp->endspaces = end.coladd
+ inclusive;
endcol -= inclusive;
}
}
}
}
if (endcol == MAXCOL)
endcol = (colnr_T)STRLEN(p);
if (startcol > endcol || is_oneChar)
bdp->textlen = 0;
else
bdp->textlen = endcol - startcol + inclusive;
bdp->textstart = p + startcol;
}
/*
* Handle the add/subtract operator.
*/