.\"	$OpenBSD: editrc.5,v 1.29 2016/01/08 20:26:54 zhuk Exp $
.\"	$NetBSD: editrc.5,v 1.27 2013/01/10 16:03:42 wiz Exp $
.\"
.\" Copyright (c) 1997-2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This file was contributed to The NetBSD Foundation by Luke Mewburn.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd $Mdocdate: January 8 2016 $
.Dt EDITRC 5
.Os
.Sh NAME
.Nm editrc
.Nd configuration file for editline library
.Sh DESCRIPTION
The
.Nm
file defines various settings to be used by the
.Xr editline 3
library.
.Pp
The format of each line is:
.Pp
.Dl [prog:]command [arg ...]
.Pp
.Ar command
is one of the
.Xr editline 3
builtin commands.
Refer to
.Sx BUILTIN COMMANDS
for more information.
.Pp
.Ar prog
is the program name string that a program defines when it calls
.Xr el_init 3
to set up
.Xr editline 3 ,
which is usually
.Va argv[0] .
.Ar command
will be executed for any program which matches
.Ar prog .
.Pp
.Ar prog
may also be a
.Xr regex 3
style
regular expression, in which case
.Ar command
will be executed for any program that matches the regular expression.
.Pp
If
.Ar prog
is absent,
.Ar command
is executed for all programs.
.Sh BUILTIN COMMANDS
The
.Nm editline
library has some builtin commands, which affect the way
that the line editing and history functions operate.
These are based on similar named builtins present in the tcsh shell.
.Pp
The following builtin commands are available:
.Bl -tag -width 4n
.It Ic bind Fl aeklrsv Xo
.Op Ar key Op Ar command
.Xc
Without options, list all bound keys, and the editor command to which
each is bound.
If
.Ar key
is supplied, show the bindings for
.Ar key .
If
.Ar key command
is supplied, bind
.Ar command
to
.Ar key .
Options include:
.Bl -tag -width 4n
.It Fl a
List or change key bindings in the
.Xr vi 1
mode alternate (command mode) key map.
.It Fl e
Bind all keys to the standard GNU Emacs-like bindings.
.It Fl k
.Ar key
is interpreted as a symbolic arrow key name, which may be one of
.Sq up ,
.Sq down ,
.Sq left
or
.Sq right .
.It Fl l
List all editor commands and a short description of each.
.It Fl r
Remove a key's binding.
.It Fl s
.Ar command
is taken as a literal string and treated as terminal input when
.Ar key
is typed.
Bound keys in
.Ar command
are themselves reinterpreted, and this continues for ten levels of
interpretation.
.It Fl v
Bind all keys to the standard
.Xr vi 1 Ns -like
bindings.
.El
.Pp
.Ar command
may be one of the commands documented in
.Sx "EDITOR COMMANDS"
below, or another key.
.Pp
.Ar key
and
.Ar command
can contain control characters of the form
.Sm off
.Sq No ^ Ar character
.Sm on
.Po
e.g.\&
.Sq ^A
.Pc ,
and the following backslashed escape sequences:
.Pp
.Bl -tag -compact -offset indent -width 4n
.It Ic \ea
Bell
.It Ic \eb
Backspace
.It Ic \ee
Escape
.It Ic \ef
Formfeed
.It Ic \en
Newline
.It Ic \er
Carriage return
.It Ic \et
Horizontal tab
.It Ic \ev
Vertical tab
.Sm off
.It Sy \e Ar nnn
.Sm on
The ASCII character corresponding to the octal number
.Ar nnn .
.El
.Pp
.Sq \e
nullifies the special meaning of the following character,
if it has any, notably
.Sq \e
and
.Sq ^ .
.It Ic echotc Oo Fl sv Oc Ar arg Ar ...
Exercise terminal capabilities given in
.Ar arg ... .
If
.Ar arg
is
.Sq baud ,
.Sq cols ,
.Sq lines ,
.Sq rows ,
.Sq meta ,
or
.Sq tabs ,
the value of that capability is printed, with
.Dq yes
or
.Dq no
indicating that the terminal does or does not have that capability.
.Pp
.Fl s
returns an empty string for non-existent capabilities, rather than
causing an error.
.Fl v
causes messages to be verbose.
.It Ic edit Op Li on | Li off
Enable or disable the
.Nm editline
functionality in a program.
.It Ic history Ar list | Ar size Dv n | Ar unique Dv n
The
.Ar list
command lists all entries in the history.
The
.Ar size
command sets the history size to
.Dv n
entries.
The
.Ar unique
command controls if history should keep duplicate entries.
If
.Dv n
is non zero, only keep unique history entries.
If
.Dv n
is zero, then keep all entries (the default).
.It Ic settc Ar cap Ar val
Set the terminal capability
.Ar cap
to
.Ar val ,
as defined in
.Xr termcap 5 .
No sanity checking is done.
.It Ic setty Xo
.Op Fl adqx
.Op Ar +mode
.Op Ar -mode
.Op Ar mode
.Op Ar char=c
.Xc
Control which tty modes that
.Nm
won't allow the user to change.
.Fl d ,
.Fl q
or
.Fl x
tells
.Ic setty
to act on the
.Sq edit ,
.Sq quote
or
.Sq execute
set of tty modes respectively; defaulting to
.Fl x .
.Pp
Without other arguments,
.Ic setty
lists the modes in the chosen set which are fixed on
.Po
.Sq +mode
.Pc
or off
.Po
.Sq -mode
.Pc .
.Fl a
lists all tty modes in the chosen set regardless of the setting.
With
.Ar +mode ,
.Ar -mode
or
.Ar mode ,
fixes
.Ar mode
on or off or removes control of
.Ar mode
in the chosen set.
.Pp
.Ic Setty
can also be used to set tty characters to particular values using
.Ar char=value .
If
.Ar value
is empty
then the character is set to
.Dv _POSIX_VDISABLE .
.It Ic telltc
List the values of all the terminal capabilities (see
.Xr termcap 5 ) .
.El
.Sh EDITOR COMMANDS
The following editor commands are available for use in key bindings:
.\" Section automatically generated with makelist
.Bl -tag -width 4n
.It Ic vi-paste-next
Vi paste previous deletion to the right of the cursor.
.It Ic vi-paste-prev
Vi paste previous deletion to the left of the cursor.
.It Ic vi-prev-big-word
Vi move to the previous space delimited word.
.It Ic vi-prev-word
Vi move to the previous word.
.It Ic vi-next-big-word
Vi move to the next space delimited word.
.It Ic vi-next-word
Vi move to the next word.
.It Ic vi-change-case
Vi change case of character under the cursor and advance one character.
.It Ic vi-change-meta
Vi change prefix command.
.It Ic vi-insert-at-bol
Vi enter insert mode at the beginning of line.
.It Ic vi-replace-char
Vi replace character under the cursor with the next character typed.
.It Ic vi-replace-mode
Vi enter replace mode.
.It Ic vi-substitute-char
Vi replace character under the cursor and enter insert mode.
.It Ic vi-substitute-line
Vi substitute entire line.
.It Ic vi-change-to-eol
Vi change to end of line.
.It Ic vi-insert
Vi enter insert mode.
.It Ic vi-add
Vi enter insert mode after the cursor.
.It Ic vi-add-at-eol
Vi enter insert mode at end of line.
.It Ic vi-delete-meta
Vi delete prefix command.
.It Ic vi-end-big-word
Vi move to the end of the current space delimited word.
.It Ic vi-end-word
Vi move to the end of the current word.
.It Ic vi-undo
Vi undo last change.
.It Ic vi-command-mode
Vi enter command mode (use alternative key bindings).
.It Ic vi-zero
Vi move to the beginning of line.
.It Ic vi-delete-prev-char
Vi move to previous character (backspace).
.It Ic vi-list-or-eof
Vi list choices for completion or indicate end of file if empty line.
.It Ic vi-kill-line-prev
Vi cut from beginning of line to cursor.
.It Ic vi-search-prev
Vi search history previous.
.It Ic vi-search-next
Vi search history next.
.It Ic vi-repeat-search-next
Vi repeat current search in the same search direction.
.It Ic vi-repeat-search-prev
Vi repeat current search in the opposite search direction.
.It Ic vi-next-char
Vi move to the character specified next.
.It Ic vi-prev-char
Vi move to the character specified previous.
.It Ic vi-to-next-char
Vi move up to the character specified next.
.It Ic vi-to-prev-char
Vi move up to the character specified previous.
.It Ic vi-repeat-next-char
Vi repeat current character search in the same search direction.
.It Ic vi-repeat-prev-char
Vi repeat current character search in the opposite search direction.
.It Ic vi-match
Vi go to matching () {} or [].
.It Ic vi-undo-line
Vi undo all changes to line.
.It Ic vi-to-column
Vi go to specified column.
.It Ic vi-yank-end
Vi yank to end of line.
.It Ic vi-yank
Vi yank.
.It Ic vi-comment-out
Vi comment out current command.
.It Ic vi-alias
Vi include shell alias.
.It Ic vi-to-history-line
Vi go to specified history file line..
.It Ic vi-histedit
Vi edit history line with vi.
.It Ic vi-history-word
Vi append word from previous input line.
.It Ic vi-redo
Vi redo last non-motion command.
.It Ic em-delete-or-list
Delete character under cursor or list completions if at end of line.
.It Ic em-delete-next-word
Cut from cursor to end of current word.
.It Ic em-yank
Paste cut buffer at cursor position.
.It Ic em-kill-line
Cut the entire line and save in cut buffer.
.It Ic em-kill-region
Cut area between mark and cursor and save in cut buffer.
.It Ic em-copy-region
Copy area between mark and cursor to cut buffer.
.It Ic em-gosmacs-transpose
Exchange the two characters before the cursor.
.It Ic em-next-word
Move next to end of current word.
.It Ic em-upper-case
Uppercase the characters from cursor to end of current word.
.It Ic em-capitol-case
Capitalize the characters from cursor to end of current word.
.It Ic em-lower-case
Lowercase the characters from cursor to end of current word.
.It Ic em-set-mark
Set the mark at cursor.
.It Ic em-exchange-mark
Exchange the cursor and mark.
.It Ic em-universal-argument
Universal argument (argument times 4).
.It Ic em-meta-next
Add 8th bit to next character typed.
.It Ic em-toggle-overwrite
Switch from insert to overwrite mode or vice versa.
.It Ic em-copy-prev-word
Copy current word to cursor.
.It Ic em-inc-search-next
Emacs incremental next search.
.It Ic em-inc-search-prev
Emacs incremental reverse search.
.It Ic ed-end-of-file
Indicate end of file.
.It Ic ed-insert
Add character to the line.
.It Ic ed-delete-prev-word
Delete from beginning of current word to cursor.
.It Ic ed-delete-next-char
Delete character under cursor.
.It Ic ed-kill-line
Cut to the end of line.
.It Ic ed-move-to-end
Move cursor to the end of line.
.It Ic ed-move-to-beg
Move cursor to the beginning of line.
.It Ic ed-transpose-chars
Exchange the character to the left of the cursor with the one under it.
.It Ic ed-next-char
Move to the right one character.
.It Ic ed-prev-word
Move to the beginning of the current word.
.It Ic ed-prev-char
Move to the left one character.
.It Ic ed-quoted-insert
Add the next character typed verbatim.
.It Ic ed-digit
Adds to argument or enters a digit.
.It Ic ed-argument-digit
Digit that starts argument.
.It Ic ed-unassigned
Indicates unbound character.
.It Ic ed-tty-sigint
Tty interrupt character.
.It Ic ed-tty-dsusp
Tty delayed suspend character.
.It Ic ed-tty-flush-output
Tty flush output characters.
.It Ic ed-tty-sigquit
Tty quit character.
.It Ic ed-tty-sigtstp
Tty suspend character.
.It Ic ed-tty-stop-output
Tty disallow output characters.
.It Ic ed-tty-start-output
Tty allow output characters.
.It Ic ed-newline
Execute command.
.It Ic ed-delete-prev-char
Delete the character to the left of the cursor.
.It Ic ed-clear-screen
Clear screen leaving current line at the top.
.It Ic ed-redisplay
Redisplay everything.
.It Ic ed-start-over
Erase current line and start from scratch.
.It Ic ed-sequence-lead-in
First character in a bound sequence.
.It Ic ed-prev-history
Move to the previous history line.
.It Ic ed-next-history
Move to the next history line.
.It Ic ed-search-prev-history
Search previous in history for a line matching the current.
.It Ic ed-search-next-history
Search next in history for a line matching the current.
.It Ic ed-prev-line
Move up one line.
.It Ic ed-next-line
Move down one line.
.It Ic ed-command
Editline extended command.
.El
.\" End of section automatically generated with makelist
.Sh FILES
.Bl -tag -width "~/.editrcXXX"
.It Pa ~/.editrc
User configuration file for the
.Xr editline 3
library.
.El
.Sh SEE ALSO
.Xr editline 3 ,
.Xr regex 3 ,
.Xr termcap 5
.Sh AUTHORS
.An -nosplit
The
.Nm editline
library was written by
.An Christos Zoulas ,
and this manual was written by
.An Luke Mewburn ,
with some sections inspired by tcsh.