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diff --git a/fun.vim b/fun.vim
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+" Echoes longest line number and lenght.
+
+function! LongestLineLength ( )
+  let maxlength   = 0
+  let linenumber  = 1
+  while linenumber <= line("$")
+    exe ":".linenumber
+    let linelength  = virtcol("$")
+    if maxlength < linelength
+      let maxlength = linelength
+      let maxlinenumber = linenumber
+    endif
+    let linenumber  = linenumber+1
+  endwhile
+
+"  exe ':0'
+"  exe 'normal O'
+"  exe 'normal 0C'.maxlength
+  exe "normal" . maxlinenumber . "G"
+  exe ":echo \"" . maxlinenumber . ": " . maxlength . "\""
+endfunction
+
+command LongestLineLength call LongestLineLength()