patch 8.1.0859: "%v" in 'errorformat' does handle multi-byte characters
Problem: "%v" in 'errorformat' does handle multi-byte characters.
Solution: Handle multi-byte characters. (Yegappan Lakshmanan, closes #3700)
diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index db2a8e6..e7aa41e 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -3843,3 +3843,59 @@
call delete('Xtestfile1')
call delete('Xtestfile2')
endfunc
+
+" Test for parsing entries using visual screen column
+func Test_viscol()
+ enew
+ call writefile(["Col1\tCol2\tCol3"], 'Xfile1')
+ edit Xfile1
+
+ " Use byte offset for column number
+ set efm&
+ cexpr "Xfile1:1:5:XX\nXfile1:1:9:YY\nXfile1:1:20:ZZ"
+ call assert_equal([5, 8], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([9, 12], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([14, 20], [col('.'), virtcol('.')])
+
+ " Use screen column offset for column number
+ set efm=%f:%l:%v:%m
+ cexpr "Xfile1:1:8:XX\nXfile1:1:12:YY\nXfile1:1:20:ZZ"
+ call assert_equal([5, 8], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([9, 12], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([14, 20], [col('.'), virtcol('.')])
+ cexpr "Xfile1:1:6:XX\nXfile1:1:15:YY\nXfile1:1:24:ZZ"
+ call assert_equal([5, 8], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([10, 16], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([14, 20], [col('.'), virtcol('.')])
+
+ enew
+ call writefile(["Col1\täü\töß\tCol4"], 'Xfile1')
+
+ " Use byte offset for column number
+ set efm&
+ cexpr "Xfile1:1:8:XX\nXfile1:1:11:YY\nXfile1:1:16:ZZ"
+ call assert_equal([8, 10], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([11, 17], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([16, 25], [col('.'), virtcol('.')])
+
+ " Use screen column offset for column number
+ set efm=%f:%l:%v:%m
+ cexpr "Xfile1:1:10:XX\nXfile1:1:17:YY\nXfile1:1:25:ZZ"
+ call assert_equal([8, 10], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([11, 17], [col('.'), virtcol('.')])
+ cnext
+ call assert_equal([16, 25], [col('.'), virtcol('.')])
+
+ enew | only
+ set efm&
+ call delete('Xfile1')
+endfunc