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-.\"	$OpenBSD: mg.1,v 1.68 2012/07/11 19:56:13 sobrado Exp $
-.\" This file is in the public domain.
-.\"
-.Dd $Mdocdate: July 11 2012 $
-.Dt MG 1
-.Os
-.Sh NAME
-.Nm mg
-.Nd emacs-like text editor
-.Sh SYNOPSIS
-.Nm mg
-.Op Fl n
-.Op Fl f Ar mode
-.Op + Ns Ar number
-.Op Ar
-.Sh DESCRIPTION
-.Nm
-is intended to be a small, fast, and portable editor for
-people who can't (or don't want to) run emacs for one
-reason or another, or are not familiar with the
-.Xr vi 1
-editor.
-It is compatible with emacs because there shouldn't
-be any reason to learn more editor types than emacs or
-.Xr vi 1 .
-.Pp
-The options are as follows:
-.Bl -tag -width Ds
-.It + Ns Ar number
-Go to the line specified by number (do not insert
-a space between the
-.Sq +
-sign and the number).
-If a negative number is specified, the line number counts
-backwards from the end of the file i.e. +-1 will be the last
-line of the file, +-2 will be second last, and so on.
-.It Fl f Ar mode
-Run the mode command for all buffers created from
-arguments on the command line, including the
-scratch buffer and all files.
-.It Fl n
-Turn off backup file generation.
-.El
-.Sh WINDOWS AND BUFFERS
-When a file is loaded into
-.Nm ,
-it is stored in a
-.Em buffer .
-This buffer may be displayed on the screen in more than one window.
-At present, windows may only be split horizontally, so each window is
-delineated by a modeline at the bottom.
-If changes are made to a buffer, it will be reflected in all open windows.
-.Pp
-If a buffer name begins and ends with an asterisk, the buffer is considered
-throwaway; i.e. the user will not be prompted to save changes when
-the buffer is killed.
-.Sh POINT AND MARK
-The current cursor location in
-.Nm
-is called the
-.Em point
-(or
-.Em dot ) .
-It is possible to define a window-specific region of text by setting a second
-location, called the
-.Em mark .
-The
-.Em region
-is the text between point and mark inclusive.
-Deleting the character at the mark position leaves
-the mark at the point of deletion.
-.Pp
-Note: The point and mark are window-specific in
-.Nm ,
-not buffer-specific, as in other emacs flavours.
-.Sh BACKUP FILES
-Backup files have a
-.Sq ~
-character appended to the file name and
-are created in the current working directory by default.
-Whether to create backup files or not can be toggled with the
-make-backup-file command.
-The backup file location can either be in the current
-working directory, or all backups can be moved to a
-.Pa ~/.mg.d
-directory where files retain their path name to retain uniqueness.
-Use the backup-to-home-directory to alternate between these two locations.
-Further, if any application creates backup files in the
-.Ev TMPDIR ,
-these can be left with the leave-tmpdir-backups command.
-.Sh TAGS
-.Nm
-supports tag files created by
-.Xr ctags 1 ,
-allowing the user to quickly locate various object definitions.
-Note though that emacs uses etags, not ctags.
-.Sh CSCOPE
-.Nm
-supports navigating source code using cscope.
-However,
-.Nm
-requires cscope and cscope-indexer executables to be present in
-.Ev PATH
-for it to work.
-.Sh DEFAULT KEY BINDINGS
-Normal editing commands are very similar to GNU Emacs.
-In the following examples, C-x means Control-x, and M-x means Meta-x,
-where the Meta key may be either a special key on the keyboard
-or the ALT key; otherwise ESC followed by the key X works as well.
-.Pp
-.Bl -tag -width xxxxxxxxxxxx -offset indent -compact
-.It C-SPC
-set-mark-command
-.It C-a
-beginning-of-line
-.It C-b
-backward-char
-.It C-c s c
-cscope-find-functions-calling-this-function
-.It C-c s d
-cscope-find-global-definition
-.It C-c s e
-cscope-find-egrep-pattern
-.It C-c s f
-cscope-find-this-file
-.It C-c s i
-cscope-find-files-including-file
-.It C-c s n
-cscope-next-symbol
-.It C-c s p
-cscope-prev-symbol
-.It C-c s s
-cscope-find-this-symbol
-.It C-c s t
-cscope-find-this-text-string
-.It C-d
-delete-char
-.It C-e
-end-of-line
-.It C-f
-forward-char
-.It C-g
-keyboard-quit
-.It C-h C-h
-help-help
-.It C-h a
-apropos
-.It C-h b
-describe-bindings
-.It C-h c
-describe-key-briefly
-.It C-j
-newline-and-indent
-.It C-k
-kill-line
-.It C-l
-recenter
-.It RET
-newline
-.It C-n
-next-line
-.It C-o
-open-line
-.It C-p
-previous-line
-.It C-q
-quoted-insert
-.It C-r
-isearch-backward
-.It C-s
-isearch-forward
-.It C-t
-transpose-chars
-.It C-u
-universal-argument
-.It C-v
-scroll-up
-.It C-w
-kill-region
-.It C-x C-b
-list-buffers
-.It C-x C-c
-save-buffers-kill-emacs
-.It C-x C-f
-find-file
-.It C-x C-g
-keyboard-quit
-.It C-x C-l
-downcase-region
-.It C-x C-o
-delete-blank-lines
-.It C-x C-q
-toggle-read-only
-.It C-x C-r
-find-file-read-only
-.It C-x C-s
-save-buffer
-.It C-x C-u
-upcase-region
-.It C-x C-v
-find-alternate-file
-.It C-x C-w
-write-file
-.It C-x C-x
-exchange-point-and-mark
-.It C-x (
-start-kbd-macro
-.It C-x \&)
-end-kbd-macro
-.It C-x 0
-delete-window
-.It C-x 1
-delete-other-windows
-.It C-x 2
-split-window-vertically
-.It C-x 4 C-f
-find-file-other-window
-.It C-x 4 C-g
-keyboard-quit
-.It C-x 4 b
-switch-to-buffer-other-window
-.It C-x 4 f
-find-file-other-window
-.It C-x =
-what-cursor-position
-.It C-x ^
-enlarge-window
-.It C-x `
-next-error
-.It C-x b
-switch-to-buffer
-.It C-x d
-dired
-.It C-x e
-call-last-kbd-macro
-.It C-x f
-set-fill-column
-.It C-x g
-goto-line
-.It C-x h
-mark-whole-buffer
-.It C-x i
-insert-file
-.It C-x k
-kill-buffer
-.It C-x n
-other-window
-.It C-x o
-other-window
-.It C-x p
-previous-window
-.It C-x s
-save-some-buffers
-.It C-x u
-undo
-.It C-y
-yank
-.It C-z
-suspend-emacs
-.It M-C-v
-scroll-other-window
-.It M-SPC
-just-one-space
-.It M-.
-find-tag
-.It M-*
-pop-tag-mark
-.It M-%
-query-replace
-.It M-<
-beginning-of-buffer
-.It M->
-end-of-buffer
-.It M-\e
-delete-horizontal-space
-.It M-^
-join-line
-.It M-b
-backward-word
-.It M-c
-capitalize-word
-.It M-d
-kill-word
-.It M-f
-forward-word
-.It M-l
-downcase-word
-.It M-m
-back-to-indentation
-.It M-q
-fill-paragraph
-.It M-r
-search-backward
-.It M-s
-search-forward
-.It M-u
-upcase-word
-.It M-v
-scroll-down
-.It M-w
-copy-region-as-kill
-.It M-x
-execute-extended-command
-.It M-{
-backward-paragraph
-.It M-|
-shell-command-on-region
-.It M-}
-forward-paragraph
-.It M-~
-not-modified
-.It M-DEL
-backward-kill-word
-.It C-_
-undo
-.It )
-blink-and-insert
-.It DEL
-delete-backward-char
-.El
-.Pp
-For a complete description of
-.Nm
-commands, see
-.Sx MG COMMANDS .
-To see the active keybindings at any time, type
-.Dq M-x describe-bindings .
-.Sh MG COMMANDS
-Commands are invoked by
-.Dq M-x ,
-or by binding to a key.
-Many commands take an optional numerical parameter,
-.Va n .
-This parameter is set either by
-M-<n> (where
-.Va n
-is the numerical argument) before the command, or by
-one or more invocations of the universal argument, usually bound to C-u.
-When invoked in this manner, the value of the numeric parameter to
-be passed is displayed in the minibuffer before the M-x.
-One common use of the parameter is in mode toggles (e.g.\&
-make-backup-files).
-If no parameter is supplied, the mode is toggled to its
-alternate state.
-If a positive parameter is supplied, the mode is forced to on.
-Otherwise, it is forced to off.
-.\"
-.Bl -tag -width xxxxx
-.It apropos
-Help Apropos.
-Prompt the user for a string, open the *help* buffer,
-and list all
-.Nm
-commands that contain that string.
-.It auto-execute
-Register an auto-execute hook; that is, specify a filename pattern
-(conforming to the shell's filename globbing rules) and an associated
-function to execute when a file matching the specified pattern
-is read into a buffer.
-.It auto-fill-mode
-Toggle auto-fill mode (sometimes called mail-mode),
-where text inserted past the fill column is automatically wrapped
-to a new line.
-.It auto-indent-mode
-Toggle indent mode, where indentation is preserved after a newline.
-.It back-to-indentation
-Move the dot to the first non-whitespace character on the current line.
-.It backup-to-home-directory
-Save backup copies to a
-.Pa ~/.mg.d
-directory instead of working directory.
-Requires make-backup-files to be on.
-.It backward-char
-Move cursor backwards one character.
-.It backward-kill-word
-Kill text backwards by
-.Va n
-words.
-.It backward-paragraph
-Move cursor backwards
-.Va n
-paragraphs.
-Paragraphs are delimited by <NL><NL> or <NL><TAB> or <NL><SPACE>.
-.It backward-word
-Move cursor backwards by the specified number of words.
-.It beginning-of-buffer
-Move cursor to the top of the buffer.
-.It beginning-of-line
-Move cursor to the beginning of the line.
-.It blink-and-insert
-Self-insert a character, then search backwards and blink its
-matching delimiter.
-For delimiters other than
-parenthesis, brackets, and braces, the character itself
-is used as its own match.
-.It bsmap-mode
-Toggle bsmap mode, where DEL and C-h are swapped.
-.It c-mode
-Toggle a KNF-compliant mode for editing C program files.
-.It call-last-kbd-macro
-Invoke the keyboard macro.
-.It capitalize-word
-Capitalize
-.Va n
-words; i.e. convert the first character of the word to
-upper case, and subsequent letters to lower case.
-.It cd
-Change the global working directory.
-See also global-wd-mode.
-.It copy-region-as-kill
-Copy all of the characters in the region to the kill buffer,
-clearing the mark afterwards.
-This is a bit like a kill-region followed by a yank.
-.It count-matches
-Count the number of lines matching the supplied regular expression.
-.It count-non-matches
-Count the number of lines not matching the supplied regular expression.
-.It cscope-find-this-symbol
-List the matches for the given symbol.
-.It cscope-find-global-definition
-List global definitions for the given literal.
-.It cscope-find-called-functions
-List functions called from the given function.
-.It cscope-find-functions-calling-this-function
-List functions calling the given function.
-.It cscope-find-this-text-string
-List locations matching the given text string.
-.It cscope-find-egrep-pattern
-List locations matching the given extended regular expression pattern.
-.It cscope-find-this-file
-List filenames matching the given filename.
-.It cscope-find-files-including-file
-List files that #include the given filename.
-.It cscope-next-symbol
-Navigate to the next match.
-.It cscope-prev-symbol
-Navigate to the previous match.
-.It cscope-next-file
-Navigate to the next file.
-.It cscope-prev-file
-Navigate to the previous file.
-.It cscope-create-list-of-files-to-index
-Create cscope's List and Index in the given directory.
-.It define-key
-Prompts the user for a named keymap (mode),
-a key, and an
-.Nm
-command, then creates a keybinding in the appropriate
-map.
-.It delete-backward-char
-Delete backwards
-.Va n
-characters.
-Like delete-char, this actually does a kill if presented
-with an argument.
-.It delete-blank-lines
-Delete blank lines around dot.
-If dot is sitting on a blank line, this command
-deletes all the blank lines above and below the current line.
-Otherwise, it deletes all of the blank lines after the current line.
-.It delete-char
-Delete
-.Va n
-characters forward.
-If any argument is present, it kills rather than deletes,
-saving the result in the kill buffer.
-.It delete-horizontal-space
-Delete any whitespace around the dot.
-.It delete-leading-space
-Delete leading whitespace on the current line.
-.It delete-trailing-space
-Delete trailing whitespace on the current line.
-.It delete-matching-lines
-Delete all lines after dot that contain a string matching
-the supplied regular expression.
-.It delete-non-matching-lines
-Delete all lines after dot that contain a string matching
-the supplied regular expression.
-.It delete-other-windows
-Make the current window the only window visible on the screen.
-.It delete-window
-Delete current window.
-.It describe-bindings
-List all global and local keybindings, putting the result in
-the *help* buffer.
-.It describe-key-briefly
-Read a key from the keyboard, and look it up in the keymap.
-Display the name of the function currently bound to the key.
-.It digit-argument
-Process a numerical argument for keyboard-invoked functions.
-.It downcase-region
-Set all characters in the region to lower case.
-.It downcase-word
-Set characters to lower case, starting at the dot, and ending
-.Va n
-words away.
-.It emacs-version
-Return an
-.Nm
-version string.
-.It end-kbd-macro
-Stop defining a keyboard macro.
-.It end-of-buffer
-Move cursor to the end of the buffer.
-.It end-of-line
-Move cursor to the end of the line.
-.It enlarge-window
-Enlarge the current window by shrinking either the window above
-or below it.
-.It eval-current-buffer
-Evaluate the current buffer as a series of
-.Nm
-commands.
-Useful for testing
-.Nm
-startup files.
-.It eval-expression
-Get one line from the user, and run it.
-Useful for testing expressions in
-.Nm
-startup files.
-.It exchange-point-and-mark
-Swap the values of "dot" and "mark" in the current window.
-Return an error if no mark is set.
-.It execute-extended-command
-Invoke an extended command; i.e. M-x.
-Call the message line routine to read in the command name and apply
-autocompletion to it.
-When it comes back, look the name up in the symbol table and run the
-command if it is found, passing arguments as necessary.
-Print an error if there is anything wrong.
-.It fill-paragraph
-Justify a paragraph, wrapping text at the current fill column.
-.It find-file
-Select a file for editing.
-First check if the file can be found
-in another buffer; if it is there, just switch to that buffer.
-If the file cannot be found, create a new buffer, read in the
-file from disk, and switch to the new buffer.
-.It find-file-read-only
-Same as find-file, except the new buffer is set to read-only.
-.It find-alternate-file
-Replace the current file with an alternate one.
-Semantics for finding the replacement file are the same as
-find-file, except the current buffer is killed before the switch.
-If the kill fails, or is aborted, revert to the original file.
-.It find-file-other-window
-Opens the specified file in a second buffer.
-Splits the current window if necessary.
-.It find-tag
-Jump to definition of tag at dot.
-.It forward-char
-Move cursor forwards (or backwards, if
-.Va n
-is negative)
-.Va n
-characters.
-Returns an error if the end of buffer is reached.
-.It forward-paragraph
-Move forward
-.Va n
-paragraphs.
-Paragraphs are delimited by <NL><NL> or <NL><TAB> or <NL><SPACE>.
-.It forward-word
-Move the cursor forward by the specified number of words.
-.It global-set-key
-Bind a key in the global (fundamental) key map.
-.It global-unset-key
-Unbind a key from the global (fundamental) key map; i.e. set it to 'rescan'.
-.It global-wd-mode
-Toggle global working-directory mode.
-When enabled,
-.Nm
-defaults to opening files (and executing commands like compile and grep)
-relative to the global working directory.
-When disabled, a working directory is set for each buffer.
-.It goto-line
-Go to a specific line.
-If an argument is present, then
-it is the line number, else prompt for a line number to use.
-.It help-help
-Prompts for one of (a)propos, (b)indings, des(c)ribe key briefly.
-.It insert
-Insert a string, mainly for use from macros.
-.It insert-buffer
-Insert the contents of another buffer at dot.
-.It insert-file
-Insert a file into the current buffer at dot.
-.It insert-with-wrap
-Insert the bound character with word wrap.
-Check to see if we're past the fill column, and if so,
-justify this line.
-.It isearch-backward
-Use incremental searching, initially in the reverse direction.
-isearch ignores any explicit arguments.
-If invoked during macro definition or evaluation, the non-incremental
-search-backward is invoked instead.
-.It isearch-forward
-Use incremental searching, initially in the forward direction.
-isearch ignores any explicit arguments.
-If invoked during macro definition or evaluation, the non-incremental
-search-forward is invoked instead.
-.It join-line
-Join the current line to the previous.
-If called with an argument,
-join the next line to the current one.
-.It just-one-space
-Delete any whitespace around dot, then insert a space.
-.It keyboard-quit
-Abort the current action.
-.It kill-buffer
-Dispose of a buffer, by name.
-If the buffer name does not start and end with an asterisk,
-prompt the user if the buffer
-has been changed.
-.It kill-line
-Kill line.
-If called without an argument, it kills from dot to the end
-of the line, unless it is at the end of the line, when it kills the
-newline.
-If called with an argument of 0, it kills from the start of the
-line to dot.
-If called with a positive argument, it kills from dot
-forward over that number of newlines.
-If called with a negative argument
-it kills any text before dot on the current line, then it kills back
-abs(n) lines.
-.It kill-paragraph
-Delete
-.Va n
-paragraphs starting with the current one.
-.It kill-region
-Kill the currently defined region.
-.It kill-word
-Delete forward
-.Va n
-words.
-.It leave-tmpdir-backups
-Modifies the behaviour of backup-to-home-directory.
-Backup files that would normally reside in the system
-.Ev TMPDIR
-are left there and not moved to the
-.Pa ~/.mg.d
-directory.
-.It line-number-mode
-Toggle whether line and column numbers are displayed in the modeline.
-.It list-buffers
-Display the list of available buffers.
-.It load
-Prompt the user for a filename, and then execute commands
-from that file.
-.It local-set-key
-Bind a key mapping in the local (topmost) mode.
-.It local-unset-key
-Unbind a key mapping in the local (topmost) mode.
-.It make-backup-files
-Toggle generation of backup files.
-.It mark-whole-buffer
-Marks whole buffer as a region by putting dot at the beginning and mark
-at the end of buffer.
-.It meta-key-mode
-When disabled, the meta key can be used to insert extended-ascii (8-bit)
-characters.
-When enabled, the meta key acts as usual.
-.It negative-argument
-Process a negative argument for keyboard-invoked functions.
-.It newline
-Insert a newline into the current buffer.
-.It newline-and-indent
-Insert a newline, then enough tabs and spaces to duplicate the indentation
-of the previous line.
-Assumes tabs are every eight characters.
-.It next-line
-Move forward
-.Va n
-lines.
-.It no-tab-mode
-Toggle notab mode.
-In this mode, spaces are inserted rather than tabs.
-.It not-modified
-Turn off the modified flag in the current buffer.
-.It open-line
-Open up some blank space.
-Essentially, insert
-.Va n
-newlines, then back up over them.
-.It other-window
-The command to make the next (down the screen) window the current
-window.
-There are no real errors, although the command does nothing if
-there is only 1 window on the screen.
-.It overwrite-mode
-Toggle overwrite mode, where typing in a buffer overwrites
-existing characters rather than inserting them.
-.It prefix-region
-Inserts a prefix string before each line of a region.
-The prefix string is settable by using 'set-prefix-string'.
-.It previous-line
-Move backwards
-.Va n
-lines.
-.It previous-window
-This command makes the previous (up the screen) window the
-current window.
-There are no errors, although the command does not do
-a lot if there is only 1 window.
-.It pop-tag-mark
-Return to position where find-tag was previously invoked.
-.It push-shell
-Suspend
-.Nm
-and switch to alternate screen, if available.
-.It pwd
-Display current (global) working directory in the status area.
-.It query-replace
-Query Replace.
-Search and replace strings selectively, prompting after each match.
-.It replace-string
-Replace string globally without individual prompting.
-.It query-replace-regexp
-Replace strings selectively.
-Does a search and replace operation using regular
-expressions for both patterns.
-.It quoted-insert
-Insert the next character verbatim into the current buffer; i.e. ignore
-any function bound to that key.
-.It re-search-again
-Perform a regular expression search again, using the same search
-string and direction as the last search command.
-.It re-search-backward
-Search backwards using a regular expression.
-Get a search string from the user, and search, starting at dot
-and proceeding toward the front of the buffer.
-If found, dot is left
-pointing at the first character of the pattern [the last character that
-was matched].
-.It re-search-forward
-Search forward using a regular expression.
-Get a search string from the user and search for it starting at dot.
-If found, move dot to just after the matched characters.
-display does all
-the hard stuff.
-If not found, it just prints a message.
-.It recenter
-Reposition dot in the current window.
-By default, the dot is centered.
-If given a positive argument (n), the display is repositioned to line
-n.
-If
-.Va n
-is negative, it is that line from the bottom.
-.It redraw-display
-Refresh the display.
-Recomputes all window sizes in case something has changed.
-.It save-buffer
-Save the contents of the current buffer if it has been changed,
-optionally creating a backup copy.
-.It save-buffers-kill-emacs
-Offer to save modified buffers and quit
-.Nm .
-.It save-some-buffers
-Look through the list of buffers, offering to save any buffer that
-has been changed.
-Buffers that are not associated with files (such
-as *scratch*, *grep*, *compile*) are ignored.
-.It scroll-down
-Scroll backwards
-.Va n
-pages.
-A two-line overlap between pages is
-assumed.
-If given a repeat argument, scrolls back lines, not pages.
-.It scroll-one-line-down
-Scroll the display down
-.Va n
-lines without changing the cursor position.
-.It scroll-one-line-up
-Scroll the display
-.Va n
-lines up without moving the cursor position.
-.It scroll-other-window
-Scroll the next window in the window list window forward
-.Va n
-pages.
-.It scroll-up
-Scroll forward one page.
-A two-line overlap between pages is
-assumed.
-If given a repeat argument, scrolls back lines, not pages.
-.It search-again
-Search again, using the same search string and direction as the last
-search command.
-.It search-backward
-Reverse search.
-Get a search string from the user, and search, starting
-at dot and proceeding toward the front of the buffer.
-If found, dot is
-left pointing at the first character of the pattern (the last character
-that was matched).
-.It search-forward
-Search forward.
-Get a search string from the user, and search for it
-starting at dot.
-If found, dot gets moved to just after the matched
-characters, if not found, print a message.
-.It self-insert-command
-Insert a character.
-.It set-case-fold-search
-Set case-fold searching, causing case not to matter
-in regular expression searches.
-This is the default.
-.It set-default-mode
-Append the supplied mode to the list of default modes
-used by subsequent buffer creation.
-Built in modes include: fill, indent, overwrite, and notab.
-.It set-fill-column
-Prompt the user for a fill column.
-Used by auto-fill-mode.
-.It set-mark-command
-Sets the mark in the current window to the current dot location.
-.It set-prefix-string
-Sets the prefix string to be used by the 'prefix-region' command.
-.It shell-command-on-region
-Provide the text in region to the shell command as input.
-.It shrink-window
-Shrink current window by one line.
-The window immediately below is expanded to pick up the slack.
-If only one window is present, this command has no effect.
-.It space-to-tabstop
-Insert enough spaces to reach the next tab-stop position.
-By default, tab-stops occur every 8 characters.
-.It split-window-vertically
-Split the current window.
-A window smaller than 3 lines cannot be split.
-.It start-kbd-macro
-Start defining a keyboard macro.
-Macro definition is ended by invoking end-kbd-macro.
-.It suspend-emacs
-Suspend
-.Nm
-and switch back to alternate screen, if in use.
-.It switch-to-buffer
-Prompt and switch to a new buffer in the current window.
-.It switch-to-buffer-other-window
-Switch to buffer in another window.
-.It toggle-read-only
-Toggle the read-only flag on the current buffer.
-.It transpose-chars
-Transpose the two characters on either side of dot.
-If dot is at the end of the line, transpose the two characters before it.
-Return with an error if dot is at the beginning of line;
-it seems to be a bit pointless to
-make this work.
-.It undo
-Undo the most recent action.
-If invoked again without an intervening command,
-move the undo pointer to the previous action and undo it.
-.It undo-boundary
-Add an undo boundary.
-This is not usually done interactively.
-.It undo-boundary-toggle
-Toggle whether undo boundaries are generated.
-Undo boundaries are often disabled before operations that should
-be considered atomically undoable.
-.It undo-enable
-Toggle whether undo information is kept.
-.It undo-list
-Show the undo records for the current buffer in a new buffer.
-.It universal-argument
-Repeat the next command 4 times.
-Usually bound to C-u.
-This command may be stacked; e.g.\&
-C-u C-u C-f moves the cursor forward 16 characters.
-.It upcase-region
-Upper case region.
-Change all of the lower case characters in the region to
-upper case.
-.It upcase-word
-Move the cursor forward by the specified number of words.
-As it moves, convert any characters to upper case.
-.It visit-tags-table
-Record name of the tags file to be used for subsequent find-tag.
-.It what-cursor-position
-Display a bunch of useful information about the current location of
-dot.
-The character under the cursor (in octal), the current line, row,
-and column, and approximate position of the cursor in the file (as a
-percentage) is displayed.
-The column position assumes an infinite
-position display; it does not truncate just because the screen does.
-.It write-file
-Ask for a file name and write the contents of the current buffer to
-that file.
-Update the remembered file name and clear the buffer
-changed flag.
-.It yank
-Yank text from kill-buffer.
-Unlike emacs, the
-.Nm
-kill buffer consists only
-of the most recent kill.
-It is not a ring.
-.El
-.Sh CONFIGURATION FILES
-There are two configuration files,
-.Pa .mg
-and
-.Pa .mg-TERM .
-Here,
-.Ev TERM
-represents the name of the terminal type; e.g. if the terminal type
-is set to
-.Dq vt100 ,
-.Nm
-will use
-.Pa .mg-vt100
-as a startup file.
-The terminal type startup file is used first.
-.Pp
-The startup file format is a list of commands, one per line, as used for
-interactive evaluation.
-Strings that are normally entered by the user at any subsequent prompts
-may be specified after the command name; e.g.:
-.Bd -literal -offset indent
-global-set-key ")" self-insert-command
-global-set-key "\e^x\e^f" find-file
-global-set-key "\ee[Z" backward-char
-set-default-mode fill
-set-fill-column 72
-auto-execute *.c c-mode
-.Ed
-.Sh FILES
-.Bl -tag -width /usr/share/doc/mg/tutorial -compact
-.It Pa ~/.mg
-normal startup file
-.It Pa ~/.mg-TERM
-terminal-specific startup file
-.It Pa ~/.mg.d
-alternative backup file location
-.It Pa /usr/share/doc/mg/tutorial
-concise tutorial
-.El
-.Sh SEE ALSO
-.Xr ctags 1 ,
-.Xr vi 1
-.Sh CAVEATS
-Since it is written completely in C, there is currently no
-language in which extensions can be written;
-however, keys can be rebound and certain parameters can be changed
-in startup files.
-.Pp
-In order to use 8-bit characters (such as German umlauts), the Meta key
-needs to be disabled via the
-.Dq meta-key-mode
-command.
-