Interface cleanup: Symlink handling & docs

This removes the ability to start nvim via the following aliases in
favor of just using their command line arguments:

ex        vim -e
exim      vim -E
view      vim -R
gvim      vim -g
gex       vim -eg
gview     vim -Rg
rvim      vim -Z
rview     vim -RZ
rgvim     vim -gZ
rgview    vim -RgZ

This also removes Vi mode (-v) for consistency. From ':help -v':

    -v  Start Ex in Vi mode.  Only makes a difference when the
    executable is called "ex" or "gvim".  For gvim the GUI is not
    started if possible.

6 files changed, 23 insertions, 89 deletions

diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index b303ad61b1..8994c313b3 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1551,9 +1551,9 @@ v:profiling	Normally zero.	Set to one after using ":profile start".
 		See |profiling|.
 
 					*v:progname* *progname-variable*
-v:progname	Contains the name (with path removed) with which Vim was
-		invoked.  Allows you to do special initialisations for |view|,
-		|rview|, or any other name you might symlink to Vim.
+v:progname	Contains the name (with path removed) with which Nvim was
+		invoked.  Allows you to do special initialisations for any
+		other name you might symlink to Nvim.
 		Read-only.
 
 					*v:progpath* *progpath-variable*
diff --git a/runtime/doc/quickref.txt b/runtime/doc/quickref.txt
index 0e4418ba6a..5d251e7b68 100644
--- a/runtime/doc/quickref.txt
+++ b/runtime/doc/quickref.txt
@@ -1128,7 +1128,6 @@ Context-sensitive completion on the command-line:
 |-+|	+[num]		    put the cursor at line [num] (default: last line)
 |-+c|	+{command}	    execute {command} after loading the file
 |-+/|	+/{pat} {file} ..   put the cursor at the first occurrence of {pat}
-|-v|	-v		    Vi mode, start ex in Normal mode
 |-e|	-e		    Ex mode, start vim in Ex mode
 |-R|	-R		    Read-only mode, implies -n
 |-m|	-m		    modifications not allowed (resets 'write' option)
diff --git a/runtime/doc/starting.txt b/runtime/doc/starting.txt
index 39cb522002..bb555e1666 100644
--- a/runtime/doc/starting.txt
+++ b/runtime/doc/starting.txt
@@ -19,11 +19,11 @@ Starting Vim						*starting*
 
 Most often, Vim is started to edit a single file with the command
 
-	vim filename					*-vim*
+	nvim filename					*-vim*
 
 More generally, Vim is started with:
 
-	vim [option | filename] ..
+	nvim [option | filename] ..
 
 Option arguments and file name arguments can be mixed, and any number of them
 can be given.  However, watch out for options that take an argument.
@@ -39,7 +39,7 @@ filename	One or more file names.  The first one will be the current
 		on the first line of the buffer.
 		To avoid a file name starting with a '-' being interpreted as
 		an option, precede the arglist with "--", e.g.: >
-			vim -- -filename
+			nvim -- -filename
 <		All arguments after the "--" will be interpreted as file names,
 		no other options or "+command" argument can follow.
 
@@ -48,22 +48,18 @@ filename	One or more file names.  The first one will be the current
 		mode is to be used.
 
 		Starting in Normal mode: >
-			vim -
-			ex -v -
+			nvim -
 <		Start editing a new buffer, which is filled with text
 		that is read from stdin.  The commands that would normally be
 		read from stdin will now be read from stderr.  Example: >
-			find . -name "*.c" -print | vim -
+			find . -name "*.c" -print | nvim -
 <		The buffer will be marked modified, because it contains text
 		that needs to be saved.  Except when in readonly mode, then
 		the buffer is not marked modified.  Example: >
-			ls | view -
-<
+			ls | nvim -R -
 		Starting in Ex mode: >
-			ex -
-			vim -e -
-			exim -
-			vim -E
+			nvim -e -
+			nvim -E
 <		Start editing in silent mode.  See |-s-ex|.
 
 							*-t* *-tag*
@@ -85,32 +81,6 @@ filename	One or more file names.  The first one will be the current
 (nothing)	Without one of the four items above, Vim will start editing a
 		new buffer.  It's empty and doesn't have a file name.
 
-
-The startup mode can be changed by using another name instead of "vim", which
-is equal to giving options:
-ex	vim -e	    Start in Ex mode (see |Ex-mode|).		    *ex*
-exim	vim -E	    Start in improved Ex mode (see |Ex-mode|).	    *exim*
-			(normally not installed)
-view	vim -R	    Start in read-only mode (see |-R|).		    *view*
-gvim	vim -g	    Start the GUI (see |gui|).			    *gvim*
-gex	vim -eg	    Start the GUI in Ex mode.			  *gex*
-gview	vim -Rg	    Start the GUI in read-only mode.		  *gview*
-rvim	vim -Z	    Like "vim", but in restricted mode (see |-Z|)   *rvim*
-rview	vim -RZ	    Like "view", but in restricted mode.	  *rview*
-rgvim	vim -gZ	    Like "gvim", but in restricted mode.	  *rgvim*
-rgview	vim -RgZ    Like "gview", but in restricted mode.	  *rgview*
-
-Additional characters may follow, they are ignored.  For example, you can have
-"gvim-5" to start the GUI.  You must have an executable by that name then, of
-course.
-
-On Unix, you would normally have one executable called Vim, and links from the
-different startup-names to that executable.  If your system does not support
-links and you do not want to have several copies of the executable, you could
-use an alias instead.  For example: >
-	alias view   vim -R
-	alias gvim   vim -g
-<
 							*startup-options*
 The option arguments may be given in any order.  Single-letter options can be
 combined after one dash.  There can be no option arguments after the "--"
@@ -245,28 +215,20 @@ argument.
 -g		Start Vim in GUI mode.  See |gui|. For the opposite see |-v|.
 		{not in Vi}
 
-							*-v*
--v		Start Ex in Vi mode.  Only makes a difference when the
-		executable is called "ex" or "gvim".  For gvim the GUI is not
-		started if possible.
-
 							*-e*
--e		Start Vim in Ex mode |Q|.  Only makes a difference when the
-		executable is not called "ex".
+-e		Start Vim in Ex mode |Q|.
 
 							*-E*
--E		Start Vim in improved Ex mode |gQ|.  Only makes a difference
-		when the executable is not called "exim".
-		{not in Vi}
+-E		Start Vim in improved Ex mode |gQ|.
 
 							*-s-ex*
--s		Silent or batch mode.  Only when Vim was started as "ex" or
-		when preceded with the "-e" argument.  Otherwise see |-s|,
-		which does take an argument while this use of "-s" doesn't.
-		To be used when Vim is used to execute Ex commands from a file
-		instead of a terminal.  Switches off most prompts and
-		informative messages.  Also warnings and error messages.
-		The output of these commands is displayed (to stdout):
+-s		Silent or batch mode.  Only when "-s" is preceded by the "-e"
+		argument.  Otherwise see |-s|, which does take an argument
+		while this use of "-s" doesn't.  To be used when Vim is used
+		to execute Ex commands from a file instead of a terminal.
+		Switches off most prompts and informative messages.  Also
+		warnings and error messages.  The output of these commands is
+		displayed (to stdout):
 			:print
 			:list
 			:number
@@ -561,14 +523,6 @@ argument.
 		Note that the implementation is still primitive.  It won't
 		work with all applications and the menu doesn't work.
 
-If the executable is called "view", Vim will start in Readonly mode.  This is
-useful if you can make a hard or symbolic link from "view" to "vim".
-Starting in Readonly mode can also be done with "vim -R".
-
-If the executable is called "ex", Vim will start in "Ex" mode.  This means it
-will accept only ":" commands.  But when the "-v" argument is given, Vim will
-start in Normal mode anyway.
-
 Additional arguments are available on unix like systems when compiled with
 X11 GUI support.  See |gui-resources|.
 
diff --git a/runtime/doc/usr_90.txt b/runtime/doc/usr_90.txt
index 4be0e93718..ab0b8156f8 100644
--- a/runtime/doc/usr_90.txt
+++ b/runtime/doc/usr_90.txt
@@ -434,27 +434,9 @@ someone supplied, you can't do this.  Do delete the files manually, here is an
 example for when "/usr/local" was used as the root: >
 
 	rm -rf /usr/local/share/vim/vim61
-	rm /usr/local/bin/ex
-	rm /usr/local/bin/gview
-	rm /usr/local/bin/gvim
-	rm /usr/local/bin/gvim
-	rm /usr/local/bin/rgview
-	rm /usr/local/bin/rgvim
-	rm /usr/local/bin/rview
-	rm /usr/local/bin/rvim
-	rm /usr/local/bin/rvim
-	rm /usr/local/bin/view
 	rm /usr/local/bin/vim
 	rm /usr/local/bin/vimtutor
 	rm /usr/local/bin/xxd
-	rm /usr/local/man/man1/ex.1
-	rm /usr/local/man/man1/gview.1
-	rm /usr/local/man/man1/gvim.1
-	rm /usr/local/man/man1/rgview.1
-	rm /usr/local/man/man1/rgvim.1
-	rm /usr/local/man/man1/rview.1
-	rm /usr/local/man/man1/rvim.1
-	rm /usr/local/man/man1/view.1
 	rm /usr/local/man/man1/vim.1
 	rm /usr/local/man/man1/vimtutor.1
 	rm /usr/local/man/man1/xxd.1
diff --git a/runtime/doc/vi_diff.txt b/runtime/doc/vi_diff.txt
index b4e621e516..919002cffd 100644
--- a/runtime/doc/vi_diff.txt
+++ b/runtime/doc/vi_diff.txt
@@ -830,10 +830,9 @@ Only Vim is able to accept options in between and after the file names.
 
 -D		Vim: debug mode.
 
--e		Elvis, Nvi, Vim: Start in Ex mode, as if the executable is
-		called "ex".
+-e		Elvis, Nvi, Vim: Start in Ex mode.
 
--E		Vim: Start in improved Ex mode |gQ|, like "exim".
+-E		Vim: Start in improved Ex mode |gQ|.
 
 -f		Vim: Run GUI in foreground.
 -f {session}	Elvis: Use {session} as the session file.
diff --git a/runtime/syntax/dirpager.vim b/runtime/syntax/dirpager.vim
index 1a60063798..40137e4936 100644
--- a/runtime/syntax/dirpager.vim
+++ b/runtime/syntax/dirpager.vim
@@ -14,7 +14,7 @@
 " License:	  VIM License
 "		  Vim is Charityware, see ":help Uganda"
 "
-" Usage:	  $ ls -la | view -c "set ft=dirpager" -
+" Usage:	  $ ls -la | nvim -R -c "set ft=dirpager" -
 "
 "
 ",----[ ls(1posix) ]--------------------------------------------------