From 3d44340cea08b06c27b87496e8149bc8a03766a2 Mon Sep 17 00:00:00 2001
From: bfredl <bjorn.linse@gmail.com>
Date: Mon, 8 Apr 2024 08:32:45 +0200
Subject: fix(tests): use more global highlight definitions

---
 test/functional/ui/diff_spec.lua | 1230 ++++++++++++++++++--------------------
 1 file changed, 590 insertions(+), 640 deletions(-)

(limited to 'test/functional/ui/diff_spec.lua')

diff --git a/test/functional/ui/diff_spec.lua b/test/functional/ui/diff_spec.lua
index 7aab061dc3..15b419c691 100644
--- a/test/functional/ui/diff_spec.lua
+++ b/test/functional/ui/diff_spec.lua
@@ -40,17 +40,6 @@ describe('Diff mode screen', function()
 
     screen = Screen.new(40, 16)
     screen:attach()
-    screen:set_default_attr_ids({
-      [1] = { foreground = Screen.colors.DarkBlue, background = Screen.colors.WebGray },
-      [2] = { background = Screen.colors.LightCyan1, bold = true, foreground = Screen.colors.Blue1 },
-      [3] = { reverse = true },
-      [4] = { background = Screen.colors.LightBlue },
-      [5] = { foreground = Screen.colors.DarkBlue, background = Screen.colors.LightGrey },
-      [6] = { bold = true, foreground = Screen.colors.Blue1 },
-      [7] = { bold = true, reverse = true },
-      [8] = { bold = true, background = Screen.colors.Red },
-      [9] = { background = Screen.colors.LightMagenta },
-    })
   end)
 
   it('Add a line in beginning of file 2', function()
@@ -60,31 +49,31 @@ describe('Diff mode screen', function()
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:  }{2:------------------}│{1:  }{4:0                }|
-      {1:  }^1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:+ }{5:+--  4 lines: 7···}│{1:+ }{5:+--  4 lines: 7··}|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }{23:------------------}│{7:  }{22:0                }|
+      {7:  }^1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:+ }{13:+--  4 lines: 7···}│{7:+ }{13:+--  4 lines: 7··}|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:  }{2:------------------}│{1:  }{4:0                }|
-      {1:  }^1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:+ }{5:+--  4 lines: 7···}│{1:+ }{5:+--  4 lines: 7··}|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }{23:------------------}│{7:  }{22:0                }|
+      {7:  }^1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:+ }{13:+--  4 lines: 7···}│{7:+ }{13:+--  4 lines: 7··}|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
   end)
@@ -96,31 +85,31 @@ describe('Diff mode screen', function()
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:  }{4:^0                 }│{1:  }{2:-----------------}|
-      {1:  }1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:+ }{5:+--  4 lines: 7···}│{1:+ }{5:+--  4 lines: 7··}|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }{22:^0                 }│{7:  }{23:-----------------}|
+      {7:  }1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:+ }{13:+--  4 lines: 7···}│{7:+ }{13:+--  4 lines: 7··}|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:  }{4:^0                 }│{1:  }{2:-----------------}|
-      {1:  }1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:+ }{5:+--  4 lines: 7···}│{1:+ }{5:+--  4 lines: 7··}|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }{22:^0                 }│{7:  }{23:-----------------}|
+      {7:  }1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:+ }{13:+--  4 lines: 7···}│{7:+ }{13:+--  4 lines: 7··}|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
   end)
@@ -132,44 +121,44 @@ describe('Diff mode screen', function()
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:+ }{5:^+--  4 lines: 1···}│{1:+ }{5:+--  4 lines: 1··}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{2:------------------}│{1:  }{4:11               }|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+--  4 lines: 1···}│{7:+ }{13:+--  4 lines: 1··}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{23:------------------}│{7:  }{22:11               }|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:+ }{5:^+--  4 lines: 1···}│{1:+ }{5:+--  4 lines: 1··}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{2:------------------}│{1:  }{4:11               }|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+--  4 lines: 1···}│{7:+ }{13:+--  4 lines: 1··}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{23:------------------}│{7:  }{22:11               }|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
 
     screen:try_resize(40, 9)
     screen:expect([[
-      {1:+ }{5:^+--  4 lines: 1···}│{1:+ }{5:+--  4 lines: 1··}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+--  4 lines: 1···}│{7:+ }{13:+--  4 lines: 1··}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                               |
     ]])
   end)
@@ -181,44 +170,44 @@ describe('Diff mode screen', function()
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:+ }{5:^+--  4 lines: 1···}│{1:+ }{5:+--  4 lines: 1··}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{4:11                }│{1:  }{2:-----------------}|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+--  4 lines: 1···}│{7:+ }{13:+--  4 lines: 1··}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{22:11                }│{7:  }{23:-----------------}|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:+ }{5:^+--  4 lines: 1···}│{1:+ }{5:+--  4 lines: 1··}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{4:11                }│{1:  }{2:-----------------}|
-      {6:~                   }│{6:~                  }|*6
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+--  4 lines: 1···}│{7:+ }{13:+--  4 lines: 1··}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{22:11                }│{7:  }{23:-----------------}|
+      {1:~                   }│{1:~                  }|*6
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
 
     screen:try_resize(40, 9)
     screen:expect([[
-      {1:+ }{5:^+--  4 lines: 1···}│{1:+ }{5:+--  4 lines: 1··}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+--  4 lines: 1···}│{7:+ }{13:+--  4 lines: 1··}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                               |
     ]])
   end)
@@ -230,39 +219,39 @@ describe('Diff mode screen', function()
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:  }^1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }{2:------------------}│{1:  }{4:4                }|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{4:11                }│{1:  }{2:-----------------}|
-      {6:~                   }│{6:~                  }|*2
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }^1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }{23:------------------}│{7:  }{22:4                }|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{22:11                }│{7:  }{23:-----------------}|
+      {1:~                   }│{1:~                  }|*2
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:  }^1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }{2:------------------}│{1:  }{4:4                }|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{4:11                }│{1:  }{2:-----------------}|
-      {6:~                   }│{6:~                  }|*2
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }^1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }{23:------------------}│{7:  }{22:4                }|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{22:11                }│{7:  }{23:-----------------}|
+      {1:~                   }│{1:~                  }|*2
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
   end)
@@ -274,39 +263,39 @@ describe('Diff mode screen', function()
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:  }^1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }{4:4                 }│{1:  }{2:-----------------}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{2:------------------}│{1:  }{4:11               }|
-      {6:~                   }│{6:~                  }|*2
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }^1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }{22:4                 }│{7:  }{23:-----------------}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{23:------------------}│{7:  }{22:11               }|
+      {1:~                   }│{1:~                  }|*2
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:  }^1                 │{1:  }1                |
-      {1:  }2                 │{1:  }2                |
-      {1:  }3                 │{1:  }3                |
-      {1:  }4                 │{1:  }4                |
-      {1:  }{4:4                 }│{1:  }{2:-----------------}|
-      {1:  }5                 │{1:  }5                |
-      {1:  }6                 │{1:  }6                |
-      {1:  }7                 │{1:  }7                |
-      {1:  }8                 │{1:  }8                |
-      {1:  }9                 │{1:  }9                |
-      {1:  }10                │{1:  }10               |
-      {1:  }{2:------------------}│{1:  }{4:11               }|
-      {6:~                   }│{6:~                  }|*2
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }^1                 │{7:  }1                |
+      {7:  }2                 │{7:  }2                |
+      {7:  }3                 │{7:  }3                |
+      {7:  }4                 │{7:  }4                |
+      {7:  }{22:4                 }│{7:  }{23:-----------------}|
+      {7:  }5                 │{7:  }5                |
+      {7:  }6                 │{7:  }6                |
+      {7:  }7                 │{7:  }7                |
+      {7:  }8                 │{7:  }8                |
+      {7:  }9                 │{7:  }9                |
+      {7:  }10                │{7:  }10               |
+      {7:  }{23:------------------}│{7:  }{22:11               }|
+      {1:~                   }│{1:~                  }|*2
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
   end)
@@ -372,41 +361,41 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=internal,filler<cr>')
       screen:expect([[
-        {1:  }^#include <stdio.h>│{1:  }#include <stdio.h|
-        {1:  }                  │{1:  }                 |
-        {1:  }{8:// Frobs foo heart}│{1:  }{8:int fib(int n)}{9:   }|
-        {1:  }{4:int frobnitz(int f}│{1:  }{2:-----------------}|
-        {1:  }{                 │{1:  }{                |
-        {1:  }{9:    i}{8:nt i;}{9:        }│{1:  }{9:    i}{8:f(n > 2)}{9:    }|
-        {1:  }{4:    for(i = 0; i <}│{1:  }{2:-----------------}|
-        {1:  }    {             │{1:  }    {            |
-        {1:  }{9:        }{8:printf("Yo}│{1:  }{9:        }{8:return fi}|
-        {1:  }{4:        printf("%d}│{1:  }{2:-----------------}|
-        {1:  }    }             │{1:  }    }            |
-        {1:  }{2:------------------}│{1:  }{4:    return 1;    }|
-        {1:  }}                 │{1:  }}                |
-        {1:  }                  │{1:  }                 |
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^#include <stdio.h>│{7:  }#include <stdio.h|
+        {7:  }                  │{7:  }                 |
+        {7:  }{27:// Frobs foo heart}│{7:  }{27:int fib(int n)}{4:   }|
+        {7:  }{22:int frobnitz(int f}│{7:  }{23:-----------------}|
+        {7:  }{                 │{7:  }{                |
+        {7:  }{4:    i}{27:nt i;}{4:        }│{7:  }{4:    i}{27:f(n > 2)}{4:    }|
+        {7:  }{22:    for(i = 0; i <}│{7:  }{23:-----------------}|
+        {7:  }    {             │{7:  }    {            |
+        {7:  }{4:        }{27:printf("Yo}│{7:  }{4:        }{27:return fi}|
+        {7:  }{22:        printf("%d}│{7:  }{23:-----------------}|
+        {7:  }    }             │{7:  }    }            |
+        {7:  }{23:------------------}│{7:  }{22:    return 1;    }|
+        {7:  }}                 │{7:  }}                |
+        {7:  }                  │{7:  }                 |
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt=internal,filler            |
       ]])
 
       feed('G')
       screen:expect([[
-        {1:  }{2:------------------}│{1:  }{4:int frobnitz(int }|
-        {1:  }{                 │{1:  }{                |
-        {1:  }{9:    i}{8:f(n > 1)}{9:     }│{1:  }{9:    i}{8:nt i;}{9:       }|
-        {1:  }{2:------------------}│{1:  }{4:    for(i = 0; i }|
-        {1:  }    {             │{1:  }    {            |
-        {1:  }{9:        }{8:return fac}│{1:  }{9:        }{8:printf("%}|
-        {1:  }    }             │{1:  }    }            |
-        {1:  }{4:    return 1;     }│{1:  }{2:-----------------}|
-        {1:  }}                 │{1:  }}                |
-        {1:  }                  │{1:  }                 |
-        {1:  }int main(int argc,│{1:  }int main(int argc|
-        {1:  }{                 │{1:  }{                |
-        {1:  }{9:    frobnitz(f}{8:act}{9:(}│{1:  }{9:    frobnitz(f}{8:ib}{9:(}|
-        {1:  }^}                 │{1:  }}                |
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }{23:------------------}│{7:  }{22:int frobnitz(int }|
+        {7:  }{                 │{7:  }{                |
+        {7:  }{4:    i}{27:f(n > 1)}{4:     }│{7:  }{4:    i}{27:nt i;}{4:       }|
+        {7:  }{23:------------------}│{7:  }{22:    for(i = 0; i }|
+        {7:  }    {             │{7:  }    {            |
+        {7:  }{4:        }{27:return fac}│{7:  }{4:        }{27:printf("%}|
+        {7:  }    }             │{7:  }    }            |
+        {7:  }{22:    return 1;     }│{7:  }{23:-----------------}|
+        {7:  }}                 │{7:  }}                |
+        {7:  }                  │{7:  }                 |
+        {7:  }int main(int argc,│{7:  }int main(int argc|
+        {7:  }{                 │{7:  }{                |
+        {7:  }{4:    frobnitz(f}{27:act}{4:(}│{7:  }{4:    frobnitz(f}{27:ib}{4:(}|
+        {7:  }^}                 │{7:  }}                |
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt=internal,filler            |
       ]])
     end)
@@ -415,41 +404,41 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=internal,filler,algorithm:patience<cr>')
       screen:expect([[
-        {1:  }^#include <stdio.h>│{1:  }#include <stdio.h|
-        {1:  }                  │{1:  }                 |
-        {1:  }{2:------------------}│{1:  }{4:int fib(int n)   }|
-        {1:  }{2:------------------}│{1:  }{4:{                }|
-        {1:  }{2:------------------}│{1:  }{4:    if(n > 2)    }|
-        {1:  }{2:------------------}│{1:  }{4:    {            }|
-        {1:  }{2:------------------}│{1:  }{4:        return fi}|
-        {1:  }{2:------------------}│{1:  }{4:    }            }|
-        {1:  }{2:------------------}│{1:  }{4:    return 1;    }|
-        {1:  }{2:------------------}│{1:  }{4:}                }|
-        {1:  }{2:------------------}│{1:  }{4:                 }|
-        {1:  }// Frobs foo heart│{1:  }// Frobs foo hear|
-        {1:  }int frobnitz(int f│{1:  }int frobnitz(int |
-        {1:  }{                 │{1:  }{                |
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^#include <stdio.h>│{7:  }#include <stdio.h|
+        {7:  }                  │{7:  }                 |
+        {7:  }{23:------------------}│{7:  }{22:int fib(int n)   }|
+        {7:  }{23:------------------}│{7:  }{22:{                }|
+        {7:  }{23:------------------}│{7:  }{22:    if(n > 2)    }|
+        {7:  }{23:------------------}│{7:  }{22:    {            }|
+        {7:  }{23:------------------}│{7:  }{22:        return fi}|
+        {7:  }{23:------------------}│{7:  }{22:    }            }|
+        {7:  }{23:------------------}│{7:  }{22:    return 1;    }|
+        {7:  }{23:------------------}│{7:  }{22:}                }|
+        {7:  }{23:------------------}│{7:  }{22:                 }|
+        {7:  }// Frobs foo heart│{7:  }// Frobs foo hear|
+        {7:  }int frobnitz(int f│{7:  }int frobnitz(int |
+        {7:  }{                 │{7:  }{                |
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                                 |
       ]])
 
       feed('G')
       screen:expect([[
-        {1:  }                  │{1:  }                 |
-        {1:  }{4:int fact(int n)   }│{1:  }{2:-----------------}|
-        {1:  }{4:{                 }│{1:  }{2:-----------------}|
-        {1:  }{4:    if(n > 1)     }│{1:  }{2:-----------------}|
-        {1:  }{4:    {             }│{1:  }{2:-----------------}|
-        {1:  }{4:        return fac}│{1:  }{2:-----------------}|
-        {1:  }{4:    }             }│{1:  }{2:-----------------}|
-        {1:  }{4:    return 1;     }│{1:  }{2:-----------------}|
-        {1:  }{4:}                 }│{1:  }{2:-----------------}|
-        {1:  }{4:                  }│{1:  }{2:-----------------}|
-        {1:  }int main(int argc,│{1:  }int main(int argc|
-        {1:  }{                 │{1:  }{                |
-        {1:  }{9:    frobnitz(f}{8:act}{9:(}│{1:  }{9:    frobnitz(f}{8:ib}{9:(}|
-        {1:  }^}                 │{1:  }}                |
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }                  │{7:  }                 |
+        {7:  }{22:int fact(int n)   }│{7:  }{23:-----------------}|
+        {7:  }{22:{                 }│{7:  }{23:-----------------}|
+        {7:  }{22:    if(n > 1)     }│{7:  }{23:-----------------}|
+        {7:  }{22:    {             }│{7:  }{23:-----------------}|
+        {7:  }{22:        return fac}│{7:  }{23:-----------------}|
+        {7:  }{22:    }             }│{7:  }{23:-----------------}|
+        {7:  }{22:    return 1;     }│{7:  }{23:-----------------}|
+        {7:  }{22:}                 }│{7:  }{23:-----------------}|
+        {7:  }{22:                  }│{7:  }{23:-----------------}|
+        {7:  }int main(int argc,│{7:  }int main(int argc|
+        {7:  }{                 │{7:  }{                |
+        {7:  }{4:    frobnitz(f}{27:act}{4:(}│{7:  }{4:    frobnitz(f}{27:ib}{4:(}|
+        {7:  }^}                 │{7:  }}                |
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                                 |
       ]])
     end)
@@ -458,41 +447,41 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=internal,filler,algorithm:histogram<cr>')
       screen:expect([[
-        {1:  }^#include <stdio.h>│{1:  }#include <stdio.h|
-        {1:  }                  │{1:  }                 |
-        {1:  }{2:------------------}│{1:  }{4:int fib(int n)   }|
-        {1:  }{2:------------------}│{1:  }{4:{                }|
-        {1:  }{2:------------------}│{1:  }{4:    if(n > 2)    }|
-        {1:  }{2:------------------}│{1:  }{4:    {            }|
-        {1:  }{2:------------------}│{1:  }{4:        return fi}|
-        {1:  }{2:------------------}│{1:  }{4:    }            }|
-        {1:  }{2:------------------}│{1:  }{4:    return 1;    }|
-        {1:  }{2:------------------}│{1:  }{4:}                }|
-        {1:  }{2:------------------}│{1:  }{4:                 }|
-        {1:  }// Frobs foo heart│{1:  }// Frobs foo hear|
-        {1:  }int frobnitz(int f│{1:  }int frobnitz(int |
-        {1:  }{                 │{1:  }{                |
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^#include <stdio.h>│{7:  }#include <stdio.h|
+        {7:  }                  │{7:  }                 |
+        {7:  }{23:------------------}│{7:  }{22:int fib(int n)   }|
+        {7:  }{23:------------------}│{7:  }{22:{                }|
+        {7:  }{23:------------------}│{7:  }{22:    if(n > 2)    }|
+        {7:  }{23:------------------}│{7:  }{22:    {            }|
+        {7:  }{23:------------------}│{7:  }{22:        return fi}|
+        {7:  }{23:------------------}│{7:  }{22:    }            }|
+        {7:  }{23:------------------}│{7:  }{22:    return 1;    }|
+        {7:  }{23:------------------}│{7:  }{22:}                }|
+        {7:  }{23:------------------}│{7:  }{22:                 }|
+        {7:  }// Frobs foo heart│{7:  }// Frobs foo hear|
+        {7:  }int frobnitz(int f│{7:  }int frobnitz(int |
+        {7:  }{                 │{7:  }{                |
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                                 |
       ]])
 
       feed('G')
       screen:expect([[
-        {1:  }                  │{1:  }                 |
-        {1:  }{4:int fact(int n)   }│{1:  }{2:-----------------}|
-        {1:  }{4:{                 }│{1:  }{2:-----------------}|
-        {1:  }{4:    if(n > 1)     }│{1:  }{2:-----------------}|
-        {1:  }{4:    {             }│{1:  }{2:-----------------}|
-        {1:  }{4:        return fac}│{1:  }{2:-----------------}|
-        {1:  }{4:    }             }│{1:  }{2:-----------------}|
-        {1:  }{4:    return 1;     }│{1:  }{2:-----------------}|
-        {1:  }{4:}                 }│{1:  }{2:-----------------}|
-        {1:  }{4:                  }│{1:  }{2:-----------------}|
-        {1:  }int main(int argc,│{1:  }int main(int argc|
-        {1:  }{                 │{1:  }{                |
-        {1:  }{9:    frobnitz(f}{8:act}{9:(}│{1:  }{9:    frobnitz(f}{8:ib}{9:(}|
-        {1:  }^}                 │{1:  }}                |
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }                  │{7:  }                 |
+        {7:  }{22:int fact(int n)   }│{7:  }{23:-----------------}|
+        {7:  }{22:{                 }│{7:  }{23:-----------------}|
+        {7:  }{22:    if(n > 1)     }│{7:  }{23:-----------------}|
+        {7:  }{22:    {             }│{7:  }{23:-----------------}|
+        {7:  }{22:        return fac}│{7:  }{23:-----------------}|
+        {7:  }{22:    }             }│{7:  }{23:-----------------}|
+        {7:  }{22:    return 1;     }│{7:  }{23:-----------------}|
+        {7:  }{22:}                 }│{7:  }{23:-----------------}|
+        {7:  }{22:                  }│{7:  }{23:-----------------}|
+        {7:  }int main(int argc,│{7:  }int main(int argc|
+        {7:  }{                 │{7:  }{                |
+        {7:  }{4:    frobnitz(f}{27:act}{4:(}│{7:  }{4:    frobnitz(f}{27:ib}{4:(}|
+        {7:  }^}                 │{7:  }}                |
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                                 |
       ]])
     end)
@@ -525,17 +514,17 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=internal,filler<cr>')
       screen:expect([[
-        {1:  }^def finalize(value│{1:  }def finalize(valu|
-        {1:  }                  │{1:  }                 |
-        {1:  }  values.each do |│{1:  }  values.each do |
-        {1:  }{2:------------------}│{1:  }{4:    v.prepare    }|
-        {1:  }{2:------------------}│{1:  }{4:  end            }|
-        {1:  }{2:------------------}│{1:  }{4:                 }|
-        {1:  }{2:------------------}│{1:  }{4:  values.each do }|
-        {1:  }    v.finalize    │{1:  }    v.finalize   |
-        {1:  }  end             │{1:  }  end            |
-        {6:~                   }│{6:~                  }|*5
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^def finalize(value│{7:  }def finalize(valu|
+        {7:  }                  │{7:  }                 |
+        {7:  }  values.each do |│{7:  }  values.each do |
+        {7:  }{23:------------------}│{7:  }{22:    v.prepare    }|
+        {7:  }{23:------------------}│{7:  }{22:  end            }|
+        {7:  }{23:------------------}│{7:  }{22:                 }|
+        {7:  }{23:------------------}│{7:  }{22:  values.each do }|
+        {7:  }    v.finalize    │{7:  }    v.finalize   |
+        {7:  }  end             │{7:  }  end            |
+        {1:~                   }│{1:~                  }|*5
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt=internal,filler            |
       ]])
     end)
@@ -544,17 +533,17 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=internal,filler,indent-heuristic<cr>')
       screen:expect([[
-        {1:  }^def finalize(value│{1:  }def finalize(valu|
-        {1:  }                  │{1:  }                 |
-        {1:  }{2:------------------}│{1:  }{4:  values.each do }|
-        {1:  }{2:------------------}│{1:  }{4:    v.prepare    }|
-        {1:  }{2:------------------}│{1:  }{4:  end            }|
-        {1:  }{2:------------------}│{1:  }{4:                 }|
-        {1:  }  values.each do |│{1:  }  values.each do |
-        {1:  }    v.finalize    │{1:  }    v.finalize   |
-        {1:  }  end             │{1:  }  end            |
-        {6:~                   }│{6:~                  }|*5
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^def finalize(value│{7:  }def finalize(valu|
+        {7:  }                  │{7:  }                 |
+        {7:  }{23:------------------}│{7:  }{22:  values.each do }|
+        {7:  }{23:------------------}│{7:  }{22:    v.prepare    }|
+        {7:  }{23:------------------}│{7:  }{22:  end            }|
+        {7:  }{23:------------------}│{7:  }{22:                 }|
+        {7:  }  values.each do |│{7:  }  values.each do |
+        {7:  }    v.finalize    │{7:  }    v.finalize   |
+        {7:  }  end             │{7:  }  end            |
+        {1:~                   }│{1:~                  }|*5
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                                 |
       ]])
     end)
@@ -564,17 +553,17 @@ int main(int argc, char **argv)
       feed(':set diffopt=internal,filler,indent-heuristic,algorithm:patience<cr>')
       feed(':<cr>')
       screen:expect([[
-        {1:  }^def finalize(value│{1:  }def finalize(valu|
-        {1:  }                  │{1:  }                 |
-        {1:  }{2:------------------}│{1:  }{4:  values.each do }|
-        {1:  }{2:------------------}│{1:  }{4:    v.prepare    }|
-        {1:  }{2:------------------}│{1:  }{4:  end            }|
-        {1:  }{2:------------------}│{1:  }{4:                 }|
-        {1:  }  values.each do |│{1:  }  values.each do |
-        {1:  }    v.finalize    │{1:  }    v.finalize   |
-        {1:  }  end             │{1:  }  end            |
-        {6:~                   }│{6:~                  }|*5
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^def finalize(value│{7:  }def finalize(valu|
+        {7:  }                  │{7:  }                 |
+        {7:  }{23:------------------}│{7:  }{22:  values.each do }|
+        {7:  }{23:------------------}│{7:  }{22:    v.prepare    }|
+        {7:  }{23:------------------}│{7:  }{22:  end            }|
+        {7:  }{23:------------------}│{7:  }{22:                 }|
+        {7:  }  values.each do |│{7:  }  values.each do |
+        {7:  }    v.finalize    │{7:  }    v.finalize   |
+        {7:  }  end             │{7:  }  end            |
+        {1:~                   }│{1:~                  }|*5
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :                                       |
       ]])
     end)
@@ -587,17 +576,17 @@ int main(int argc, char **argv)
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:+ }{5:^+-- 10 lines: 1···}│{1:+ }{5:+-- 10 lines: 1··}|
-      {6:~                   }│{6:~                  }|*13
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+-- 10 lines: 1···}│{7:+ }{13:+-- 10 lines: 1··}|
+      {1:~                   }│{1:~                  }|*13
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:+ }{5:^+-- 10 lines: 1···}│{1:+ }{5:+-- 10 lines: 1··}|
-      {6:~                   }│{6:~                  }|*13
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:+ }{13:^+-- 10 lines: 1···}│{7:+ }{13:+-- 10 lines: 1··}|
+      {1:~                   }│{1:~                  }|*13
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
   end)
@@ -609,17 +598,17 @@ int main(int argc, char **argv)
 
     feed(':set diffopt=filler<cr>')
     screen:expect([[
-      {1:- }^                  │{1:- }                 |
-      {6:~                   }│{6:~                  }|*13
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:- }^                  │{7:- }                 |
+      {1:~                   }│{1:~                  }|*13
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler                     |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:- }^                  │{1:- }                 |
-      {6:~                   }│{6:~                  }|*13
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:- }^                  │{7:- }                 |
+      {1:~                   }│{1:~                  }|*13
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
   end)
@@ -631,21 +620,21 @@ int main(int argc, char **argv)
 
     feed(':set diffopt=filler,icase<cr>')
     screen:expect([[
-      {1:  }^a                 │{1:  }A                |
-      {1:  }b                 │{1:  }b                |
-      {1:  }{9:cd                }│{1:  }{9:cD}{8:e}{9:              }|
-      {6:~                   }│{6:~                  }|*11
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }^a                 │{7:  }A                |
+      {7:  }b                 │{7:  }b                |
+      {7:  }{4:cd                }│{7:  }{4:cD}{27:e}{4:              }|
+      {1:~                   }│{1:~                  }|*11
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt=filler,icase               |
     ]])
 
     feed(':set diffopt+=internal<cr>')
     screen:expect([[
-      {1:  }^a                 │{1:  }A                |
-      {1:  }b                 │{1:  }b                |
-      {1:  }{9:cd                }│{1:  }{9:cD}{8:e}{9:              }|
-      {6:~                   }│{6:~                  }|*11
-      {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+      {7:  }^a                 │{7:  }A                |
+      {7:  }b                 │{7:  }b                |
+      {7:  }{4:cd                }│{7:  }{4:cD}{27:e}{4:              }|
+      {1:~                   }│{1:~                  }|*11
+      {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
       :set diffopt+=internal                  |
     ]])
   end)
@@ -664,16 +653,16 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=filler,iwhite<cr>')
       screen:expect([[
-        {1:  }^int main()        │{1:  }int main()       |
-        {1:  }{                 │{1:  }{                |
-        {1:  }{2:------------------}│{1:  }{4:   if (0)        }|
-        {1:  }{2:------------------}│{1:  }{4:   {             }|
-        {1:  }   printf("Hello, │{1:  }      printf("Hel|
-        {1:  }   return 0;      │{1:  }      return 0;  |
-        {1:  }{2:------------------}│{1:  }{4:   }             }|
-        {1:  }}                 │{1:  }}                |
-        {6:~                   }│{6:~                  }|*6
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^int main()        │{7:  }int main()       |
+        {7:  }{                 │{7:  }{                |
+        {7:  }{23:------------------}│{7:  }{22:   if (0)        }|
+        {7:  }{23:------------------}│{7:  }{22:   {             }|
+        {7:  }   printf("Hello, │{7:  }      printf("Hel|
+        {7:  }   return 0;      │{7:  }      return 0;  |
+        {7:  }{23:------------------}│{7:  }{22:   }             }|
+        {7:  }}                 │{7:  }}                |
+        {1:~                   }│{1:~                  }|*6
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt=filler,iwhite              |
       ]])
     end)
@@ -682,16 +671,16 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=filler,iwhite,internal<cr>')
       screen:expect([[
-        {1:  }^int main()        │{1:  }int main()       |
-        {1:  }{                 │{1:  }{                |
-        {1:  }{2:------------------}│{1:  }{4:   if (0)        }|
-        {1:  }{2:------------------}│{1:  }{4:   {             }|
-        {1:  }   printf("Hello, │{1:  }      printf("Hel|
-        {1:  }   return 0;      │{1:  }      return 0;  |
-        {1:  }{2:------------------}│{1:  }{4:   }             }|
-        {1:  }}                 │{1:  }}                |
-        {6:~                   }│{6:~                  }|*6
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^int main()        │{7:  }int main()       |
+        {7:  }{                 │{7:  }{                |
+        {7:  }{23:------------------}│{7:  }{22:   if (0)        }|
+        {7:  }{23:------------------}│{7:  }{22:   {             }|
+        {7:  }   printf("Hello, │{7:  }      printf("Hel|
+        {7:  }   return 0;      │{7:  }      return 0;  |
+        {7:  }{23:------------------}│{7:  }{22:   }             }|
+        {7:  }}                 │{7:  }}                |
+        {1:~                   }│{1:~                  }|*6
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt=filler,iwhite,internal     |
       ]])
     end)
@@ -708,14 +697,14 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=internal,filler,iblank<cr>')
       screen:expect([[
-        {1:  }^a                 │{1:  }a                |
-        {1:  }{4:                  }│{1:  }{2:-----------------}|*2
-        {1:  }cd                │{1:  }cd               |
-        {1:  }ef                │{1:  }                 |
-        {1:  }{8:xxx}{9:               }│{1:  }ef               |
-        {6:~                   }│{1:  }{8:yyy}{9:              }|
-        {6:~                   }│{6:~                  }|*7
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^a                 │{7:  }a                |
+        {7:  }{22:                  }│{7:  }{23:-----------------}|*2
+        {7:  }cd                │{7:  }cd               |
+        {7:  }ef                │{7:  }                 |
+        {7:  }{27:xxx}{4:               }│{7:  }ef               |
+        {1:~                   }│{7:  }{27:yyy}{4:              }|
+        {1:~                   }│{1:~                  }|*7
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt=internal,filler,iblank     |
       ]])
     end)
@@ -725,14 +714,14 @@ int main(int argc, char **argv)
       feed(':set diffopt=internal,filler,iblank,iwhite<cr>')
       feed(':<cr>')
       screen:expect([[
-        {1:  }^a                 │{1:  }a                |
-        {1:  }                  │{1:  }cd               |
-        {1:  }                  │{1:  }                 |
-        {1:  }cd                │{1:  }ef               |
-        {1:  }ef                │{1:  }{8:yyy}{9:              }|
-        {1:  }{8:xxx}{9:               }│{6:~                  }|
-        {6:~                   }│{6:~                  }|*8
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^a                 │{7:  }a                |
+        {7:  }                  │{7:  }cd               |
+        {7:  }                  │{7:  }                 |
+        {7:  }cd                │{7:  }ef               |
+        {7:  }ef                │{7:  }{27:yyy}{4:              }|
+        {7:  }{27:xxx}{4:               }│{1:~                  }|
+        {1:~                   }│{1:~                  }|*8
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :                                       |
       ]])
     end)
@@ -742,14 +731,14 @@ int main(int argc, char **argv)
       feed(':set diffopt=internal,filler,iblank,iwhiteall<cr>')
       feed(':<cr>')
       screen:expect([[
-        {1:  }^a                 │{1:  }a                |
-        {1:  }                  │{1:  }cd               |
-        {1:  }                  │{1:  }                 |
-        {1:  }cd                │{1:  }ef               |
-        {1:  }ef                │{1:  }{8:yyy}{9:              }|
-        {1:  }{8:xxx}{9:               }│{6:~                  }|
-        {6:~                   }│{6:~                  }|*8
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^a                 │{7:  }a                |
+        {7:  }                  │{7:  }cd               |
+        {7:  }                  │{7:  }                 |
+        {7:  }cd                │{7:  }ef               |
+        {7:  }ef                │{7:  }{27:yyy}{4:              }|
+        {7:  }{27:xxx}{4:               }│{1:~                  }|
+        {1:~                   }│{1:~                  }|*8
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :                                       |
       ]])
     end)
@@ -759,14 +748,14 @@ int main(int argc, char **argv)
       feed(':set diffopt=internal,filler,iblank,iwhiteeol<cr>')
       feed(':<cr>')
       screen:expect([[
-        {1:  }^a                 │{1:  }a                |
-        {1:  }                  │{1:  }cd               |
-        {1:  }                  │{1:  }                 |
-        {1:  }cd                │{1:  }ef               |
-        {1:  }ef                │{1:  }{8:yyy}{9:              }|
-        {1:  }{8:xxx}{9:               }│{6:~                  }|
-        {6:~                   }│{6:~                  }|*8
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^a                 │{7:  }a                |
+        {7:  }                  │{7:  }cd               |
+        {7:  }                  │{7:  }                 |
+        {7:  }cd                │{7:  }ef               |
+        {7:  }ef                │{7:  }{27:yyy}{4:              }|
+        {7:  }{27:xxx}{4:               }│{1:~                  }|
+        {1:~                   }│{1:~                  }|*8
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :                                       |
       ]])
     end)
@@ -784,16 +773,16 @@ int main(int argc, char **argv)
       feed(':set diffopt=internal,filler,iwhiteeol<cr>')
       feed(':<cr>')
       screen:expect([[
-        {1:  }^a                 │{1:  }a                |
-        {1:  }x                 │{1:  }x                |
-        {1:  }{9:cd                }│{1:  }{9:c}{8: }{9:d              }|
-        {1:  }{9:ef                }│{1:  }{8: }{9:ef              }|
-        {1:  }{9:xx }{8: }{9:xx            }│{1:  }{9:xx xx            }|
-        {1:  }foo               │{1:  }foo              |
-        {1:  }{2:------------------}│{1:  }{4:                 }|
-        {1:  }bar               │{1:  }bar              |
-        {6:~                   }│{6:~                  }|*6
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^a                 │{7:  }a                |
+        {7:  }x                 │{7:  }x                |
+        {7:  }{4:cd                }│{7:  }{4:c}{27: }{4:d              }|
+        {7:  }{4:ef                }│{7:  }{27: }{4:ef              }|
+        {7:  }{4:xx }{27: }{4:xx            }│{7:  }{4:xx xx            }|
+        {7:  }foo               │{7:  }foo              |
+        {7:  }{23:------------------}│{7:  }{22:                 }|
+        {7:  }bar               │{7:  }bar              |
+        {1:~                   }│{1:~                  }|*6
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :                                       |
       ]])
     end)
@@ -803,16 +792,16 @@ int main(int argc, char **argv)
       feed(':set diffopt=internal,filler,iwhiteall<cr>')
       feed(':<cr>')
       screen:expect([[
-        {1:  }^a                 │{1:  }a                |
-        {1:  }x                 │{1:  }x                |
-        {1:  }cd                │{1:  }c d              |
-        {1:  }ef                │{1:  } ef              |
-        {1:  }xx  xx            │{1:  }xx xx            |
-        {1:  }foo               │{1:  }foo              |
-        {1:  }{2:------------------}│{1:  }{4:                 }|
-        {1:  }bar               │{1:  }bar              |
-        {6:~                   }│{6:~                  }|*6
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^a                 │{7:  }a                |
+        {7:  }x                 │{7:  }x                |
+        {7:  }cd                │{7:  }c d              |
+        {7:  }ef                │{7:  } ef              |
+        {7:  }xx  xx            │{7:  }xx xx            |
+        {7:  }foo               │{7:  }foo              |
+        {7:  }{23:------------------}│{7:  }{22:                 }|
+        {7:  }bar               │{7:  }bar              |
+        {1:~                   }│{1:~                  }|*6
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :                                       |
       ]])
     end)
@@ -883,32 +872,32 @@ int main(int argc, char **argv)
 
     feed('<C-W><C-W>jjjj')
     screen:expect([[
-      {1:  }line 1           │{1:  }line 1            |
-      {1:  }line 2           │{1:  }line 2            |
-      {1:  }line 3           │{1:  }line 3            |
-      {1:  }line 4           │{1:  }line 4            |
-      {1:  }                 │{1:  }^                  |
-      {1:  }{2:-----------------}│{1:  }{4:Lorem             }|
-      {1:  }{2:-----------------}│{1:  }{4:ipsum             }|
-      {1:  }{2:-----------------}│{1:  }{4:dolor             }|
-      {1:  }{2:-----------------}│{1:  }{4:sit               }|
-      {1:  }{2:-----------------}│{1:  }{4:amet,             }|
-      {3:<nal-diff-screen-1  }{7:<al-diff-screen-1.2 }|
+      {7:  }line 1           │{7:  }line 1            |
+      {7:  }line 2           │{7:  }line 2            |
+      {7:  }line 3           │{7:  }line 3            |
+      {7:  }line 4           │{7:  }line 4            |
+      {7:  }                 │{7:  }^                  |
+      {7:  }{23:-----------------}│{7:  }{22:Lorem             }|
+      {7:  }{23:-----------------}│{7:  }{22:ipsum             }|
+      {7:  }{23:-----------------}│{7:  }{22:dolor             }|
+      {7:  }{23:-----------------}│{7:  }{22:sit               }|
+      {7:  }{23:-----------------}│{7:  }{22:amet,             }|
+      {2:<nal-diff-screen-1  }{3:<al-diff-screen-1.2 }|
       :e                                      |
     ]])
     feed('j')
     screen:expect([[
-      {1:  }line 1           │{1:  }line 1            |
-      {1:  }line 2           │{1:  }line 2            |
-      {1:  }line 3           │{1:  }line 3            |
-      {1:  }line 4           │{1:  }line 4            |
-      {1:  }                 │{1:  }                  |
-      {1:  }{2:-----------------}│{1:  }{4:^Lorem             }|
-      {1:  }{2:-----------------}│{1:  }{4:ipsum             }|
-      {1:  }{2:-----------------}│{1:  }{4:dolor             }|
-      {1:  }{2:-----------------}│{1:  }{4:sit               }|
-      {1:  }{2:-----------------}│{1:  }{4:amet,             }|
-      {3:<nal-diff-screen-1  }{7:<al-diff-screen-1.2 }|
+      {7:  }line 1           │{7:  }line 1            |
+      {7:  }line 2           │{7:  }line 2            |
+      {7:  }line 3           │{7:  }line 3            |
+      {7:  }line 4           │{7:  }line 4            |
+      {7:  }                 │{7:  }                  |
+      {7:  }{23:-----------------}│{7:  }{22:^Lorem             }|
+      {7:  }{23:-----------------}│{7:  }{22:ipsum             }|
+      {7:  }{23:-----------------}│{7:  }{22:dolor             }|
+      {7:  }{23:-----------------}│{7:  }{22:sit               }|
+      {7:  }{23:-----------------}│{7:  }{22:amet,             }|
+      {2:<nal-diff-screen-1  }{3:<al-diff-screen-1.2 }|
       :e                                      |
     ]])
   end)
@@ -942,38 +931,38 @@ int main(int argc, char **argv)
       reread()
       feed(':set diffopt=internal,filler<cr>')
       screen:expect([[
-  {1:  }^if __name__ == "__│{1:  }if __name__ == "_|
-  {1:  }    import sys    │{1:  }    import sys   |
-  {1:  }{9:    }{8:app = QWidgets}│{1:  }{9:    }{8:comment these}|
-  {1:  }{9:    }{8:MainWindow = Q}│{1:  }{9:    }{8:#app = QWidge}|
-  {1:  }{9:    }{8:ui = UI_}{9:MainWi}│{1:  }{9:    }{8:#MainWindow =}|
-  {1:  }{2:------------------}│{1:  }{4:    add a complet}|
-  {1:  }{2:------------------}│{1:  }{4:    #ui = UI_Main}|
-  {1:  }{2:------------------}│{1:  }{4:    add another n}|
-  {1:  }    ui.setupUI(Mai│{1:  }    ui.setupUI(Ma|
-  {1:  }    MainWindow.sho│{1:  }    MainWindow.sh|
-  {1:  }    sys.exit(app.e│{1:  }    sys.exit(app.|
-  {6:~                   }│{6:~                  }|*3
-  {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+  {7:  }^if __name__ == "__│{7:  }if __name__ == "_|
+  {7:  }    import sys    │{7:  }    import sys   |
+  {7:  }{4:    }{27:app = QWidgets}│{7:  }{4:    }{27:comment these}|
+  {7:  }{4:    }{27:MainWindow = Q}│{7:  }{4:    }{27:#app = QWidge}|
+  {7:  }{4:    }{27:ui = UI_}{4:MainWi}│{7:  }{4:    }{27:#MainWindow =}|
+  {7:  }{23:------------------}│{7:  }{22:    add a complet}|
+  {7:  }{23:------------------}│{7:  }{22:    #ui = UI_Main}|
+  {7:  }{23:------------------}│{7:  }{22:    add another n}|
+  {7:  }    ui.setupUI(Mai│{7:  }    ui.setupUI(Ma|
+  {7:  }    MainWindow.sho│{7:  }    MainWindow.sh|
+  {7:  }    sys.exit(app.e│{7:  }    sys.exit(app.|
+  {1:~                   }│{1:~                  }|*3
+  {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
   :set diffopt=internal,filler            |
       ]])
 
       feed('G')
       feed(':set diffopt+=linematch:20<cr>')
       screen:expect([[
-        {1:  }if __name__ == "__│{1:  }if __name__ == "_|
-        {1:  }    import sys    │{1:  }    import sys   |
-        {1:  }{2:------------------}│{1:  }{4:    comment these}|
-        {1:  }{9:    app = QWidgets}│{1:  }{9:    }{8:#}{9:app = QWidge}|
-        {1:  }{9:    MainWindow = Q}│{1:  }{9:    }{8:#}{9:MainWindow =}|
-        {1:  }{2:------------------}│{1:  }{4:    add a complet}|
-        {1:  }{9:    ui = UI_MainWi}│{1:  }{9:    }{8:#}{9:ui = UI_Main}|
-        {1:  }{2:------------------}│{1:  }{4:    add another n}|
-        {1:  }    ui.setupUI(Mai│{1:  }    ui.setupUI(Ma|
-        {1:  }    MainWindow.sho│{1:  }    MainWindow.sh|
-        {1:  }    ^sys.exit(app.e│{1:  }    sys.exit(app.|
-        {6:~                   }│{6:~                  }|*3
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }if __name__ == "__│{7:  }if __name__ == "_|
+        {7:  }    import sys    │{7:  }    import sys   |
+        {7:  }{23:------------------}│{7:  }{22:    comment these}|
+        {7:  }{4:    app = QWidgets}│{7:  }{4:    }{27:#}{4:app = QWidge}|
+        {7:  }{4:    MainWindow = Q}│{7:  }{4:    }{27:#}{4:MainWindow =}|
+        {7:  }{23:------------------}│{7:  }{22:    add a complet}|
+        {7:  }{4:    ui = UI_MainWi}│{7:  }{4:    }{27:#}{4:ui = UI_Main}|
+        {7:  }{23:------------------}│{7:  }{22:    add another n}|
+        {7:  }    ui.setupUI(Mai│{7:  }    ui.setupUI(Ma|
+        {7:  }    MainWindow.sho│{7:  }    MainWindow.sh|
+        {7:  }    ^sys.exit(app.e│{7:  }    sys.exit(app.|
+        {1:~                   }│{1:~                  }|*3
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt+=linematch:20              |
       ]])
     end)
@@ -993,20 +982,20 @@ ccca]]
       reread()
       feed(':set diffopt=internal,filler,linematch:20<cr>')
       screen:expect([[
-        {1:  }^DDD               │{1:  }DDD              |
-        {1:  }{2:------------------}│{1:  }{4:AAA              }|
-        {1:  }{8:_a}{9:a               }│{1:  }{8:ccc}{9:a             }|
-        {6:~                   }│{6:~                  }|*11
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^DDD               │{7:  }DDD              |
+        {7:  }{23:------------------}│{7:  }{22:AAA              }|
+        {7:  }{27:_a}{4:a               }│{7:  }{27:ccc}{4:a             }|
+        {1:~                   }│{1:~                  }|*11
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                                 |
       ]])
       feed(':set diffopt+=icase<cr>')
       screen:expect([[
-        {1:  }^DDD               │{1:  }DDD              |
-        {1:  }{8:_}{9:aa               }│{1:  }{8:A}{9:AA              }|
-        {1:  }{2:------------------}│{1:  }{4:ccca             }|
-        {6:~                   }│{6:~                  }|*11
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^DDD               │{7:  }DDD              |
+        {7:  }{27:_}{4:aa               }│{7:  }{27:A}{4:AA              }|
+        {7:  }{23:------------------}│{7:  }{22:ccca             }|
+        {1:~                   }│{1:~                  }|*11
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt+=icase                     |
       ]])
     end)
@@ -1027,22 +1016,22 @@ AAAB]]
       feed(':set diffopt=internal,filler,linematch:20<cr>')
       screen:expect {
         grid = [[
-        {1:  }^BB                │{1:  }BB               |
-        {1:  }{9:   AA}{8:A}{9:            }│{1:  }{9:   AA}{8:B}{9:           }|
-        {1:  }{2:------------------}│{1:  }{4:AAAB             }|
-        {6:~                   }│{6:~                  }|*11
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^BB                │{7:  }BB               |
+        {7:  }{4:   AA}{27:A}{4:            }│{7:  }{4:   AA}{27:B}{4:           }|
+        {7:  }{23:------------------}│{7:  }{22:AAAB             }|
+        {1:~                   }│{1:~                  }|*11
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
                                                 |
       ]],
       }
       feed(':set diffopt+=iwhiteall<cr>')
       screen:expect {
         grid = [[
-        {1:  }^BB                │{1:  }BB               |
-        {1:  }{2:------------------}│{1:  }{4:   AAB           }|
-        {1:  }{9:   AAA            }│{1:  }{9:AAA}{8:B}{9:             }|
-        {6:~                   }│{6:~                  }|*11
-        {7:<onal-diff-screen-1  }{3:<l-diff-screen-1.2 }|
+        {7:  }^BB                │{7:  }BB               |
+        {7:  }{23:------------------}│{7:  }{22:   AAB           }|
+        {7:  }{4:   AAA            }│{7:  }{4:AAA}{27:B}{4:             }|
+        {1:~                   }│{1:~                  }|*11
+        {3:<onal-diff-screen-1  }{2:<l-diff-screen-1.2 }|
         :set diffopt+=iwhiteall                 |
       ]],
       }
@@ -1057,16 +1046,16 @@ AAAB]]
     command('botright new')
     screen:expect {
       grid = [[
-      {1:  }aaa               │{1:  }aaa              |
-      {1:  }bbb               │{1:  }bbb              |
-      {1:  }ccc               │{1:  }ccc              |
-      {1:  }                  │{1:  }                 |
-      {1:  }{8:xx}{9: