patch 8.2.2911: pattern "\%V" does not match all of block selection

Problem:    Pattern "\%V" does not match all of block selection. (Rick Howe)
Solution:   Use the value of vi_curswant. (closes #8285)

Author: brammool

src/regexp.c

@@ -1279,6 +1279,7 @@ reg_match_visual(void)
     colnr_T	start, end;
     colnr_T	start2, end2;
     colnr_T	cols;
+    colnr_T	curswant;
 
     // Check if the buffer is the current buffer.
     if (rex.reg_buf != curbuf || VIsual.lnum == 0)
@@ -1297,6 +1298,7 @@ reg_match_visual(void)
 	    bot = VIsual;
 	}
 	mode = VIsual_mode;
+	curswant = wp->w_curswant;
     }
     else
     {
@@ -1311,6 +1313,7 @@ reg_match_visual(void)
 	    bot = curbuf->b_visual.vi_start;
 	}
 	mode = curbuf->b_visual.vi_mode;
+	curswant = curbuf->b_visual.vi_curswant;
     }
     lnum = rex.lnum + rex.reg_firstlnum;
     if (lnum < top.lnum || lnum > bot.lnum)
@@ -1331,7 +1334,7 @@ reg_match_visual(void)
 	    start = start2;
 	if (end2 > end)
 	    end = end2;
-	if (top.col == MAXCOL || bot.col == MAXCOL)
+	if (top.col == MAXCOL || bot.col == MAXCOL || curswant == MAXCOL)
 	    end = MAXCOL;
 	cols = win_linetabsize(wp, rex.line, (colnr_T)(rex.input - rex.line));
 	if (cols < start || cols > end - (*p_sel == 'e'))

src/testdir/dumps/Test_hlsearch_block_visual_match.dump

@@ -0,0 +1,9 @@
+|a+0&#ffff4012@1| | +0&#ffffff0@56
+>b+0&#ffff4012@3| | +0&#ffffff0@54
+|c+0&#ffff4012@5| | +0&#ffffff0@52
+|~+0#4040ff13&| @58
+|~| @58
+|~| @58
+|~| @58
+|~| @58
+|/+0#0000000&|\|%|V| @37|2|,|1| @10|A|l@1| 

src/testdir/test_search.vim

@@ -984,6 +984,26 @@ func Test_hlsearch_and_visual()
   call delete('Xhlvisual_script')
 endfunc
 
+func Test_hlsearch_block_visual_match()
+  CheckScreendump
+
+  let lines =<< trim END
+    set hlsearch
+    call setline(1, ['aa', 'bbbb', 'cccccc'])
+  END
+  call writefile(lines, 'Xhlsearch_block')
+  let buf = RunVimInTerminal('-S Xhlsearch_block', {'rows': 9, 'cols': 60})
+
+  call term_sendkeys(buf, "G\<C-V>$kk\<Esc>")
+  sleep 100m
+  call term_sendkeys(buf, "/\\%V\<CR>")
+  sleep 100m
+  call VerifyScreenDump(buf, 'Test_hlsearch_block_visual_match', {})
+
+  call StopVimInTerminal(buf)
+  call delete('Xhlsearch_block')
+endfunc
+
 func Test_incsearch_substitute()
   CheckOption incsearch
 

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2911,
 /**/
     2910,
 /**/