-Editor limits that the user is likely to encounter are as follows:
-1024 characters per line,
-256 characters per global command list,
-128 characters per file name,
-128 characters in the previous inserted and deleted text in
-.I open
-or
-.I visual,
-100 characters in a shell escape command,
-63 characters in a string valued option,
-and 30 characters in a tag name, and
-a limit of 250000 lines in the file is silently enforced.
-.PP
-The
-.I visual
-implementation limits the number of macros defined with map to
-32, and the total number of characters in macros to be less than 512.
-.LP
-.LP
-.I Acknowledgments.