commit 4c8d2f02b3ce037bbe1d5ee12887e343c6bde88f
author Yegappan Lakshmanan <yegappan@yahoo.com> Sat Nov 12 16:07:47 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Sat Nov 12 16:07:47 2022 +0000
tree b9f8e07114c29a8427817d5c9aa8ab37b2c13b3c
parent 0aad88f073602849d1623122eb3c323f8e252def

patch 9.0.0863: col() and charcol() only work for the current window

Problem:    col() and charcol() only work for the current window.
Solution:   Add an optional winid argument. (Yegappan Lakshmanan,
            closes #11466, closes #11461)

src/testdir/test_cursor_func.vim

diff --git a/src/testdir/test_cursor_func.vim b/src/testdir/test_cursor_func.vim
index d2685ed..a48db15 100644
--- a/src/testdir/test_cursor_func.vim
+++ b/src/testdir/test_cursor_func.vim
@@ -287,8 +287,9 @@
 
 " Test for the charcol() function
 func Test_charcol()
-  call assert_fails('call charcol({})', 'E731:')
-  call assert_equal(0, charcol(0))
+  call assert_fails('call charcol({})', 'E1222:')
+  call assert_fails('call charcol(".", [])', 'E1210:')
+  call assert_fails('call charcol(0)', 'E1222:')
   new
   call setline(1, ['', "01\tà4è678", 'Ⅵ', '012345678'])
 
@@ -344,6 +345,25 @@
   call assert_equal([1, 10, 2, 10, 7], g:InsertCurrentCol)
   iunmap <F3>
 
+  " Test for getting the column number in another window.
+  let winid = win_getid()
+  new
+  call win_execute(winid, 'normal 1G')
+  call assert_equal(1, charcol('.', winid))
+  call assert_equal(1, charcol('$', winid))
+  call win_execute(winid, 'normal 2G6l')
+  call assert_equal(7, charcol('.', winid))
+  call assert_equal(10, charcol('$', winid))
+
+  " calling from another tab page also works
+  tabnew
+  call assert_equal(7, charcol('.', winid))
+  call assert_equal(10, charcol('$', winid))
+  tabclose
+
+  " unknown window ID
+  call assert_equal(0, charcol('.', 10001))
+
   %bw!
 endfunc