List of things that should be added:
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+ X11 (Tk, Motif, Xaw) interface.
+ Interpreted language (Perl5, Scheme, Tcl/Rush, Python)
+ Additional ports: Windows, Windows NT, MSDOS
+ Forms editing package; use RE's to verify field contents.
+ Internationalization, including wide character and multibyte support.
+ Support for single line window editing, including full editing
capability on the vi colon command line.
+ Rob Pike's sam style RE's.
+ Right-to-left and bottom to top text support.
+ Quitall command, to leave all windows. A ! will force the quit.
List of suggested features:
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+ Add a tab listing, e.g. "set tabs=8,16,32,64", so that ^T moves
to specific screen locations.
+ Filename completion. While on the subject of completion, it would be
nice to have the completion mechanism found in tcsh version >= 6.03.
For instance, the completion for the `:cd' command will be directories
only. The completion for the `:set' command will be all options not
set at that moment, and for `:set un' will be all options that are set
at that moment. The completion for `:< count' will be the flags.
+ Add a "push" command that would push a file on the tags stack.
(Essentially make tags a special case of the stack, and make
the stack more general purpose.)
+ Make :script just run a command and edit the output, and :interactive,
which allows interactive shell session, instead of just the current
+ Add tagging information to the man page so that users can display
the part of the man page that discusses the command in which they're
+ Add a zone option so that you can declare that top/bottom few lines
of the screen aren't filled except by accident, so that the text
you ask for is always concentrated in the center of the screen.
+ Add "set searchdir" for a list of directories to look in for
files to edit. The semantic is that ":e foo" is replaced with
the file name that is found, so there's no confusion as to
:di[splay] screens -> :screens
:di[splay] buffers -> :buffers
+ A macro record function. Add the ability to record a sequence
of keystrokes into a named buffer for later use. Handy when
you're trying to build a semi-complex macro.
+ The semantics of :split, :bg, and :fg aren't right. Someone needs to
rethink how they should interact. The main problem arises when users
want to get a window into a new file. Currently, the necessary sequence
is ":split newfile|^W|:bg". It would be nice if you could simply
background the current screen and edit a new one.
+ An option to turn on a ``quarter plane'' model so that you can
go as far to the right or down as you wish. The File or the
current line is only extended if you actually put down a char at
the new location. Very handy for ascii graphics and tables.
+ Some way of replacing the command bindings. For this to work
cleanly the notion of a command must be separate from that of a
key. (Simulate the Rand editor?)
+ Vertical splitting, so you can see files side by side.
+ Tracking. Two or more files are associated so that when one file
is scrolled up/down/left/right other files track by the same amount.
Tracking may be constrained such that two files only track vertically
or horizontally. This is relatively easy to implement.
+ A status file so that the next time invocation of the editor returns
to the same place, with the same number of windows etc. In case of
change of the screen size, reasonable defaults are used. For each
window size and location of the window, name of the file and position
in it, any tab settings, any other settings for the window (such as
insert/overwrite mode, auto indent etc). Last search RE and maybe
direction. If a file does not exist the next time you invoke the
editor, its window is left in the same place but with some default
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