(lispref.info)Buffer Text Notation


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Buffer Text Notation
--------------------

   Some examples show modifications to text in a buffer, with "before"
and "after" versions of the text.  In such cases, the entire contents
of the buffer in question are included between two lines of dashes
containing the buffer name.  In addition, the location of point is shown
as `-!-'.  (The symbol for point, of course, is not part of the text in
the buffer; it indicates the place *between* two characters where point
is located.)

     ---------- Buffer: foo ----------
     This is the -!-contents of foo.
     ---------- Buffer: foo ----------
     
     (insert "changed ")
          => nil
     ---------- Buffer: foo ----------
     This is the changed -!-contents of foo.
     ---------- Buffer: foo ----------


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