Now it accepts len in screen cells.
Cheers, Alexey.
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diff -r 1d3b648de738 runtime/doc/eval.txt
--- a/runtime/doc/eval.txt Wed Jul 02 20:00:48 2014 +0200
+++ b/runtime/doc/eval.txt Thu Jul 03 12:13:21 2014 +0400
@@ -4401,7 +4401,8 @@
|col()| would return). The character at this position will
be highlighted.
- A list with three numbers, e.g., [23, 11, 3]. As above, but
- the third number gives the length of the highlight in bytes.
+ the third number gives the length of the highlight in screen
+ cells.
The maximum number of positions is 8.
diff -r 1d3b648de738 src/screen.c
--- a/src/screen.c Wed Jul 02 20:00:48 2014 +0200
+++ b/src/screen.c Thu Jul 03 12:13:21 2014 +0400
@@ -7636,8 +7636,40 @@
{
colnr_T start = posmatch->pos[bot].col == 0
? 0 : posmatch->pos[bot].col - 1;
- colnr_T end = posmatch->pos[bot].col == 0
- ? MAXCOL : start + posmatch->pos[bot].len;
+ colnr_T end = MAXCOL;
+
+ if (start < 0)
+ return FALSE;
+
+ if (posmatch->pos[bot].col > 0)
+ {
+ int len = 0;
+
+#ifdef FEAT_MBYTE
+ if (has_mbyte)
+ {
+ char_u *ml = ml_get_buf(shl->buf, lnum, FALSE);
+ int ml_len = STRLEN(ml);
+
+ if (start > ml_len)
+ return FALSE;
+
+ for (i = 0; i < posmatch->pos[bot].len; i++)
+ {
+ if (len + start > ml_len)
+ {
+ len = ml_len - start;
+ break;
+ }
+ len += (*mb_ptr2len)(ml + start + len);
+ }
+ }
+ else
+#endif
+ len = posmatch->pos[bot].len;
+
+ end = start + len;
+ }
shl->rm.startpos[0].lnum = 0;
shl->rm.startpos[0].col = start;
