Provided by: libedit2_3.1-20190324-1_amd64 bug

NAME

     editline — line editing user interface

DESCRIPTION

     When a program using the editline(3edit) library prompts for an input string using the
     function el_wgets(3), it reads characters from the terminal.  Invalid input bytes that do
     not form characters are silently discarded.  For each character read, one editor command is
     executed.  The mapping of input characters to editor commands depends on the editing mode.
     There are three editing modes: vi insert mode, vi command mode, and emacs mode.  The default
     is vi insert mode.  The program can switch the default to emacs mode by using the el_set(3)
     or el_parse(3) functions, and the user can switch to emacs mode either in the editrc(5edit)
     configuration file or interactively with the ed-command editor command, in all three cases
     executing the bind -e builtin command.

     If trying to read from the terminal results in end of file or an error, the library signals
     end of file to the program and does not return a string.

   Input character bindings
     All default bindings described below can be overridden by individual programs and can be
     changed with the editrc(5edit) bind builtin command.

     In the following tables, ‘Ctrl-’ indicates a character with the bit 0x40 flipped, and
     ‘Meta-’ indicates a character with the bit 0x80 set.  In vi insert mode and in emacs mode,
     all Meta-characters considered printable by the current locale(1) are bound to ed-insert
     instead of to the editor command listed below.  Consequently, in UTF-8 mode, most of the
     Meta-characters are not directly accessible because their code points are occupied by
     printable Unicode characters, and Meta-characters are usually input using the em-meta-next
     editor command.  For example, to enter ‘Meta-B’ in order to call the ed-prev-word editor
     command in emacs mode, call em-meta-next by pressing and releasing the escape key (or
     equivalently, Ctrl-[), then press and release the ‘B’ key.  If you have configured a Meta-
     key on your keyboard, for example with ‘setxkbmap -option altwin:left_meta_win’, the Ctrl-
     Meta-characters are directly accessible.  For example, to enter ‘Ctrl-Meta-H’ in order to
     call the ed-delete-prev-word editor command in emacs mode, hold down the keys ‘Ctrl’,
     ‘Meta’, and ‘H’ at the same time.  Alternatively, press and release the escape key, then
     press and release ‘Ctrl-H’.

     In vi input mode, input characters are bound to the following editor commands by default:

           Ctrl-D, EOF     vi-list-or-eof
           Ctrl-H, BS      vi-delete-prev-char
           Ctrl-J, LF      ed-newline
           Ctrl-M, CR      ed-newline
           Ctrl-Q          ed-tty-start-output
           Ctrl-S          ed-tty-stop-output
           Ctrl-U          vi-kill-line-prev
           Ctrl-V          ed-quoted-insert
           Ctrl-W          ed-delete-prev-word
           Ctrl-[, ESC     vi-command-mode
           Ctrl-\, QUIT    ed-tty-sigquit
           Ctrl-?, DEL     vi-delete-prev-char

     All other input characters except the NUL character (Ctrl-@) are bound to ed-insert.

     In vi command mode, input characters are bound to the following editor commands by default:

           Ctrl-A          ed-move-to-beg
           Ctrl-C, INT     ed-tty-sigint
           Ctrl-E          ed-move-to-end
           Ctrl-H, BS      ed-delete-prev-char
           Ctrl-J, LF      ed-newline
           Ctrl-K          ed-kill-line
           Ctrl-L, FF      ed-clear-screen
           Ctrl-M, CR      ed-newline
           Ctrl-N          ed-next-history
           Ctrl-O          ed-tty-flush-output
           Ctrl-P          ed-prev-history
           Ctrl-Q          ed-tty-start-output
           Ctrl-R          ed-redisplay
           Ctrl-S          ed-tty-stop-output
           Ctrl-U          vi-kill-line-prev
           Ctrl-W          ed-delete-prev-word
           Ctrl-[, ESC     em-meta-next
           Ctrl-\, QUIT    ed-tty-sigquit
           Space           ed-next-char
           #               vi-comment-out
           $               ed-move-to-end
           %               vi-match
           +               ed-next-history
           ,               vi-repeat-prev-char
           -               ed-prev-history
           .               vi-redo
           /               vi-search-prev
           0               vi-zero
           1 to 9          ed-argument-digit
           :               ed-command
           ;               vi-repeat-next-char
           ?               vi-search-next
           @               vi-alias
           A               vi-add-at-eol
           B               vi-prev-big-word
           C               vi-change-to-eol
           D               ed-kill-line
           E               vi-end-big-word
           F               vi-prev-char
           G               vi-to-history-line
           I               vi-insert-at-bol
           J               ed-search-next-history
           K               ed-search-prev-history
           N               vi-repeat-search-prev
           O               ed-sequence-lead-in
           P               vi-paste-prev
           R               vi-replace-mode
           S               vi-substitute-line
           T               vi-to-prev-char
           U               vi-undo-line
           W               vi-next-big-word
           X               ed-delete-prev-char
           Y               vi-yank-end
           [               ed-sequence-lead-in
           ^               ed-move-to-beg
           _               vi-history-word
           a               vi-add
           b               vi-prev-word
           c               vi-change-meta
           d               vi-delete-meta
           e               vi-end-word
           f               vi-next-char
           h               ed-prev-char
           i               vi-insert
           j               ed-next-history
           k               ed-prev-history
           l               ed-next-char
           n               vi-repeat-search-next
           p               vi-paste-next
           r               vi-replace-char
           s               vi-substitute-char
           t               vi-to-next-char
           u               vi-undo
           v               vi-histedit
           w               vi-next-word
           x               ed-delete-next-char
           y               vi-yank
           |               vi-to-column
           ~               vi-change-case
           Ctrl-?, DEL     ed-delete-prev-char
           Meta-O          ed-sequence-lead-in
           Meta-[          ed-sequence-lead-in

     In emacs mode, input characters are bound to the following editor commands by default:

           0 to 9          ed-digit
           Ctrl-@, NUL     em-set-mark
           Ctrl-A          ed-move-to-beg
           Ctrl-B          ed-prev-char
           Ctrl-C, INT     ed-tty-sigint
           Ctrl-D, EOF     em-delete-or-list
           Ctrl-E          ed-move-to-end
           Ctrl-F          ed-next-char
           Ctrl-H, BS      em-delete-prev-char
           Ctrl-J, LF      ed-newline
           Ctrl-K          ed-kill-line
           Ctrl-L, FF      ed-clear-screen
           Ctrl-M, CR      ed-newline
           Ctrl-N          ed-next-history
           Ctrl-O          ed-tty-flush-output
           Ctrl-P          ed-prev-history
           Ctrl-Q          ed-tty-start-output
           Ctrl-R          ed-redisplay
           Ctrl-S          ed-tty-stop-output
           Ctrl-T          ed-transpose-chars
           Ctrl-U          ed-kill-line
           Ctrl-V          ed-quoted-insert
           Ctrl-W          em-kill-region
           Ctrl-X          ed-sequence-lead-in
           Ctrl-Y          em-yank
           Ctrl-Z, TSTP    ed-tty-sigtstp
           Ctrl-[, ESC     em-meta-next
           Ctrl-\, QUIT    ed-tty-sigquit
           Ctrl-]          ed-tty-dsusp
           Ctrl-?, DEL     em-delete-prev-char
           Ctrl-Meta-H     ed-delete-prev-word
           Ctrl-Meta-L     ed-clear-screen
           Ctrl-Meta-_     em-copy-prev-word
           Meta-0 to 9     ed-argument-digit
           Meta-B          ed-prev-word
           Meta-C          em-capitol-case
           Meta-D          em-delete-next-word
           Meta-F          em-next-word
           Meta-L          em-lower-case
           Meta-N          ed-search-next-history
           Meta-O          ed-sequence-lead-in
           Meta-P          ed-search-prev-history
           Meta-U          em-upper-case
           Meta-W          em-copy-region
           Meta-X          ed-command
           Meta-[          ed-sequence-lead-in
           Meta-b          ed-prev-word
           Meta-c          em-capitol-case
           Meta-d          em-delete-next-word
           Meta-f          em-next-word
           Meta-l          em-lower-case
           Meta-n          ed-search-next-history
           Meta-p          ed-search-prev-history
           Meta-u          em-upper-case
           Meta-w          em-copy-region
           Meta-x          ed-command
           Ctrl-Meta-?     ed-delete-prev-word

     The remaining ascii(7) characters in the range 0x20 to 0x7e are bound to ed-insert.

     If standard output is not connected to a terminal device or el_set(3) was used to set
     EL_EDITMODE to 0, all input character bindings are disabled and all characters typed are
     appended to the edit buffer.  In that case, the edit buffer is returned to the program after
     a newline or carriage return character is typed, or after the first character typed if
     el_set(3) was used to set EL_UNBUFFERED to non-zero.

   Editor commands
     Most editor commands accept an optional argument.  The argument is entered by prefixing the
     editor command with one or more of the editor commands ed-argument-digit, ed-digit,
     em-universal-argument, or vi-zero.  When an argument is not provided, it defaults to 1.  For
     most editor commands, the effect of an argument is to repeatedly execute the command that
     number of times.

     When talking about a character string from a left character to a right character, the left
     character is included in the string, while the right character is not included.

     If an editor command causes an error, the input character is discarded, no action occurs,
     and the terminal bell is rung.  In case of a non-fatal error, the terminal bell is also
     rung, but the editor command takes effect anyway.

     In the following list, the default key bindings are listed after each editor command.

     ed-argument-digit (vi command: 1 to 9; emacs: Meta-0 to Meta-9)
           If in argument input mode, append the input digit to the argument being read.
           Otherwise, switch to argument input mode and use the input digit as the most
           significant digit of the argument.  It is an error if the input character is not a
           digit or if the existing argument is already greater than a million.

     ed-clear-screen (vi command: Ctrl-L; emacs: Ctrl-L, Ctrl-Meta-L)
           Clear the screen and display the edit buffer at the top.  Ignore any argument.

     ed-command (vi command: ‘:’; emacs: Meta-X, Meta-x)
           Read a line from the terminal bypassing the normal line editing functionality and
           execute that line as an editrc(5edit) builtin command.  If in vi command mode, also
           switch back to vi insert mode.  Ignore any argument.

     ed-delete-next-char (vi command: x)
           Delete the character at the cursor position.  With an argument, delete that number of
           characters.  In emacs mode, it is an error if the cursor is at the end of the edit
           buffer.  In vi mode, the last character in the edit buffer is deleted in that case,
           and it is an error if the buffer is empty.

     ed-delete-prev-char (vi command: X, Ctrl-H, BS, Ctrl-?, DEL)
           Delete the character to the left of the cursor position.  With an argument, delete
           that number of characters.  It is an error if the cursor is at the beginning of the
           edit buffer.

     ed-delete-prev-word (vi: Ctrl-W; emacs: Ctrl-Meta-H, Ctrl-Meta-?)
           Move to the left to the closest beginning of a word, delete the string from that
           position to the cursor, and save it to the cut buffer.  With an argument, delete that
           number of words.  It is an error if the cursor is at the beginning of the edit buffer.

     ed-digit (emacs: 0 to 9)
           If in argument input mode, append the input digit to the argument being read.
           Otherwise, call ed-insert.  It is an error if the input character is not a digit or if
           the existing argument is already greater than a million.

     ed-end-of-file (not bound by default)
           Discard the edit buffer and indicate end of file to the program.  Ignore any argument.

     ed-ignore (various)
           Discard the input character and do nothing.

     ed-insert (vi input: almost all; emacs: printable characters)
           In insert mode, insert the input character left of the cursor position.  In replace
           mode, overwrite the character at the cursor and move the cursor to the right by one
           character position.  Accept an argument to do this repeatedly.  It is an error if the
           input character is the NUL character (Ctrl-@).  Failure to enlarge the edit buffer
           also results in an error.

     ed-kill-line (vi command: D, Ctrl-K; emacs: Ctrl-K, Ctrl-U)
           Delete the string from the cursor position to the end of the line and save it to the
           cut buffer.  Ignore any argument.

     ed-move-to-beg (vi command: ^, Ctrl-A; emacs: Ctrl-A)
           In vi mode, move the cursor to the first non-space character in the edit buffer.  In
           emacs mode, move the cursor to the beginning of the edit buffer.  Ignore any argument.
           Can be used as a movement command after vi_change_meta, vi_delete_meta, or vi_yank.

     ed-move-to-end (vi command: $, Ctrl-E; emacs: Ctrl-E)
           Move the cursor to the end of the edit buffer.  Ignore any argument.  Can be used as a
           movement command after vi_change_meta, vi_delete_meta, or vi_yank.

     ed-newline (all modes: Ctrl-J, LF, Ctrl-M, CR)
           Append a newline character to the edit buffer and return the edit buffer to the
           program.  Ignore any argument.

     ed-next-char (vi command: Space, l; emacs: Ctrl-F)
           Move the cursor one character position to the right.  With an argument, move by that
           number of characters.  Can be used as a movement command after vi_change_meta,
           vi_delete_meta, or vi_yank.  It is an error if the cursor is already at the end of the
           edit buffer.

     ed-next-history (vi command: j, +, Ctrl-N; emacs: Ctrl-N)
           Replace the edit buffer with the next history line.  That line is older than the
           current line.  With an argument, go forward by that number of history lines.  It is a
           non-fatal error to advance by more lines than are available.

     ed-next-line (not bound by default)
           Move the cursor down one line.  With an argument, move down by that number of lines.
           It is an error if the edit buffer does not contain enough newline characters to the
           right of the cursor position.

     ed-prev-char (vi command: h; emacs: Ctrl-B)
           Move the cursor one character position to the left.  With an argument, move by that
           number of characters.  Can be used as a movement command after vi_change_meta,
           vi_delete_meta, or vi_yank.  It is an error if the cursor is already at the beginning
           of the edit buffer.

     ed-prev-history (vi command: k, -, Ctrl-P; emacs: Ctrl-P)
           Replace the edit buffer with the previous history line.  That line is newer than the
           current line.  With an argument, go back by that number of lines.  It is a non-fatal
           error to back up by more lines than are available.

     ed-prev-line (not bound by default)
           Move the cursor up one line.  With an argument, move up by that number of lines.  It
           is an error if the edit buffer does not contain enough newline characters to the left
           of the cursor position.

     ed-prev-word (emacs: Meta-B, Meta-b)
           Move the cursor to the left to the closest beginning of a word.  With an argument,
           repeat that number of times.  Can be used as a movement command after vi_change_meta,
           vi_delete_meta, or vi_yank.  It is an error if the cursor is already at the beginning
           of the edit buffer.

     ed-quoted-insert (vi insert, emacs: Ctrl-V)
           Read one character from the terminal bypassing the normal line editing functionality
           and call ed-insert on it.  If trying to read the character returns end of file or an
           error, call ed-end-of-file instead.

     ed-redisplay (vi command, emacs: Ctrl-R)
           Redisplay everything.  Ignore any argument.

     ed-search-next-history (vi command: J; emacs: Meta-N, Meta-n)
           Replace the edit buffer with the next matching history entry.

     ed-search-prev-history (vi command: K; emacs: Meta-P, Meta-p)
           Replace the edit buffer with the previous matching history entry.

     ed-sequence-lead-in (vi cmd: O, [; emacs: Ctrl-X; both: Meta-O, Meta-[)
           Call a macro.  See the section about Macros below for details.

     ed-start-over (not bound by default)
           Discard the contents of the edit buffer and start from scratch.  Ignore any argument.

     ed-transpose-chars (emacs: Ctrl-T)
           Exchange the character at the cursor position with the one to the left of it and move
           the cursor to the character to the right of the two exchanged characters.  Ignore any
           argument.  It is an error if the cursor is at the beginning of the edit buffer or if
           the edit buffer contains less than two characters.

     ed-unassigned (all characters not listed)
           This editor command always results in an error.

     em-capitol-case (emacs: Meta-C, Meta-c)
           Capitalize the string from the cursor to the end of the current word.  That is, if it
           contains at least one alphabetic character, convert the first alphabetic character to
           upper case, and convert all characters to the right of it to lower case.  In any case,
           move the cursor to the next character after the end of the current word.

     em-copy-prev-word (emacs: Ctrl-Meta-_)
           Copy the string from the beginning of the current word to the cursor and insert it to
           the left of the cursor.  Move the cursor to the character after the inserted string.
           It is an error if the cursor is at the beginning of the edit buffer.

     em-copy-region (emacs: Meta-W, Meta-w)
           Copy the string from the cursor to the mark to the cut buffer.  It is an error if the
           mark is not set.

     em-delete-next-word (emacs: Meta-D, Meta-d)
           Delete the string from the cursor to the end of the current word and save it to the
           cut buffer.  It is an error if the cursor is at the end of the edit buffer.

     em-delete-or-list (emacs: Ctrl-D, EOF)
           If the cursor is not at the end of the line, delete the character at the cursor.  If
           the edit buffer is empty, indicate end of file to the program.  It is an error if the
           cursor is at the end of the edit buffer and the edit buffer is not empty.

     em-delete-prev-char (emacs: Ctrl-H, BS, Ctrl-?, DEL)
           Delete the character to the left of the cursor.  It is an error if the cursor is at
           the beginning of the edit buffer.

     em-exchange-mark (not bound by default)
           Exchange the cursor and the mark.

     em-gosmacs-transpose (not bound by default)
           Exchange the two characters to the left of the cursor.  It is an error if the cursor
           is on the first or second character of the edit buffer.

     em-inc-search-next (not bound by default)
           Emacs incremental next search.

     em-inc-search-prev (not bound by default)
           Emacs incremental reverse search.

     em-kill-line (not bound by default)
           Delete the entire contents of the edit buffer and save it to the cut buffer.

     em-kill-region (emacs: Ctrl-W)
           Delete the string from the cursor to the mark and save it to the cut buffer.  It is an
           error if the mark is not set.

     em-lower-case (emacs: Meta-L, Meta-l)
           Convert the characters from the cursor to the end of the current word to lower case.

     em-meta-next (vi command, emacs: Ctrl-[, ESC)
           Set the bit 0x80 on the next character typed.  Unless the resulting code point is
           printable, holding down the ‘Meta-’ key while typing that character is a simpler way
           to achieve the same effect.

     em-next-word (Meta-F, Meta-f)
           Move the cursor to the end of the current word.  Can be used as a movement command
           after vi_change_meta, vi_delete_meta, or vi_yank.  It is an error if the cursor is
           already at the end of the edit buffer.

     em-set-mark (emacs: Ctrl-Q, NUL)
           Set the mark at the current cursor position.

     em-toggle-overwrite (not bound by default)
           Switch from insert to overwrite mode or vice versa.

     em-universal-argument (not bound by default)
           If in argument input mode, multiply the argument by 4.  Otherwise, switch to argument
           input mode and set the argument to 4.  It is an error if the existing argument is
           already greater than a million.

     em-upper-case (emacs: Meta-U, Meta-u)
           Convert the characters from the cursor to the end of the current word to upper case.

     em-yank (emacs: Ctrl-Y)
           Paste the cut buffer to the left of the cursor.

     vi-add (vi command: a)
           Switch to vi insert mode.  Unless the cursor is already at the end of the edit buffer,
           move it one character position to the right.

     vi-add-at-eol (vi command: A)
           Switch to vi insert mode and move the cursor to the end of the edit buffer.

     vi-alias (vi command: @)
           If an alias function was defined by calling the el_set(3) or el_wset(3) function with
           the argument EL_ALIAS_TEXT, read one character from the terminal bypassing the normal
           line editing functionality, call the alias function passing the argument that was
           specified with EL_ALIAS_TEXT as the first argument and the character read, with an
           underscore prepended, as the second argument, and pass the string returned from the
           alias function to el_wpush(3).  It is an error if no alias function is defined or if
           trying to read the character results in end of file or an error.

     vi-change-case (vi command: ~)
           Change the case of the character at the cursor and move the cursor one character
           position to the right.  It is an error if the cursor is already at the end of the edit
           buffer.

     vi-change-meta (vi command: c)
           Delete the string from the cursor to the position specified by the following movement
           command and save a copy of it to the cut buffer.  When given twice in a row, instead
           delete the whole contents of the edit buffer and save a copy of it to the cut buffer.
           In either case, switch to vi insert mode after that.

     vi-change-to-eol (vi command: C)
           Delete the string from the cursor position to the end of the line and save it to the
           cut buffer, then switch to vi insert mode.

     vi-command-mode (vi insert: Ctrl-[, ESC)
           Discard pending actions and arguments and switch to vi command mode.  Unless the
           cursor is already at the beginning of the edit buffer, move it to the left by one
           character position.

     vi-comment-out (vi command: #)
           Insert a ‘#’ character at the beginning of the edit buffer and return the edit buffer
           to the program.

     vi-delete-meta (vi command: d)
           Delete the string from the cursor to the position specified by the following movement
           command and save a copy of it to the cut buffer.  When given twice in a row, instead
           delete the whole contents of the edit buffer and save a copy of it to the cut buffer.

     vi-delete-prev-char (vi insert: Ctrl-H, BS, Ctrl-?, DEL)
           Delete the character to the left of the cursor.  It is an error if the cursor is
           already at the beginning of the edit buffer.

     vi-end-big-word (vi command: E)
           Move the cursor to the end of the current space delimited word.  Can be used as a
           movement command after vi_change_meta, vi_delete_meta, or vi_yank.  It is an error if
           the cursor is already at the end of the edit buffer.

     vi-end-word (vi command: e)
           Move the cursor to the end of the current word.  Can be used as a movement command
           after vi_change_meta, vi_delete_meta, or vi_yank.  It is an error if the cursor is
           already at the end of the edit buffer.

     vi-history-word (vi command: _)
           Insert the first word from the most recent history entry after the cursor, move the
           cursor after to the character after the inserted word, and switch to vi insert mode.
           It is an error if there is no history entry or the most recent history entry is empty.

     vi-insert (vi command: i)
           Enter insert mode.

     vi-insert-at-bol (vi command: I)
           Move the cursor to the beginning of the edit buffer and switch to vi insert mode.

     vi-kill-line-prev (vi: Ctrl-U)
           Delete the string from the beginning of the edit buffer to the cursor and save it to
           the cut buffer.

     vi-list-or-eof (vi insert: Ctrl-D, EOF)
           If the edit buffer is empty, indicate end of file to the program.  It is an error if
           the edit buffer is not empty.

     vi-match (vi command: %)
           Consider opening and closing parentheses, braces, and brackets as delimiters.  If the
           cursor is not at a delimiter, move it to the right until it gets to one, then move it
           to the matching delimiter.  Can be used as a movement command after vi_change_meta,
           vi_delete_meta, or vi_yank.  It is an error if there is no delimiter at the cursor or
           in the string to the right of the cursor, or if the first such delimiter has no
           matching delimiter.

     vi-next-big-word (vi command: W)
           Move the cursor to the right to the beginning of the next space delimited word.  Can
           be used as a movement command after vi_change_meta, vi_delete_meta, or vi_yank.  It is
           an error if the cursor is already at the end of the edit buffer or on its last
           character.

     vi-next-char (vi command: f)
           Read one character from the terminal bypassing the normal line editing functionality
           and move the cursor to the right to the next instance of that character in the edit
           buffer.  Can be used as a movement command after vi_change_meta, vi_delete_meta, or
           vi_yank.  If trying to read the character results in end of file or an error, call
           ed-end-of-file instead.  It is an error if the character is not found searching to the
           right in the edit buffer.

     vi-next-word (vi command: w)
           Move the cursor to the right to the beginning of the next word.  Can be used as a
           movement command after vi_change_meta, vi_delete_meta, or vi_yank.  It is an error if
           the cursor is already at the end of the edit buffer or on its last character.

     vi-paste-next (vi command: p)
           Insert a copy of the cut buffer to the right of the cursor.  It is an error if the cut
           buffer is empty.

     vi-paste-prev (vi command: P)
           Insert a copy of the cut buffer to the left of the cursor.  It is an error if the cut
           buffer is empty.

     vi-prev-big-word (vi command: B)
           Move the cursor to the left to the next beginning of a space delimited word.  Can be
           used as a movement command after vi_change_meta, vi_delete_meta, or vi_yank.  It is an
           error if the cursor is already at the beginning of the edit buffer.

     vi-prev-char (vi command: F)
           Read one character from the terminal bypassing the normal line editing functionality
           and move the cursor to the left to the next instance of that character in the edit
           buffer.  Can be used as a movement command after vi_change_meta, vi_delete_meta, or
           vi_yank.  If trying to read the character results in end of file or an error, call
           ed-end-of-file instead.  It is an error if the character is not found searching to the
           left in the edit buffer.

     vi-prev-word (vi command: b)
           Move the cursor to the left to the next beginning of a word.  Can be used as a
           movement command after vi_change_meta, vi_delete_meta, or vi_yank.  It is an error if
           the cursor is already at the beginning of the edit buffer.

     vi-redo (vi command: ‘.’)
           Redo the last non-motion command.

     vi-repeat-next-char (vi command: ‘;’)
           Repeat the most recent character search in the same search direction.  Can be used as
           a movement command after vi_change_meta, vi_delete_meta, or vi_yank.

     vi-repeat-prev-char (vi command: ‘,’)
           Repeat the most recent character search in the opposite search direction.  Can be used
           as a movement command after vi_change_meta, vi_delete_meta, or vi_yank.

     vi-repeat-search-next (vi command: n)
           Repeat the most recent history search in the same search direction.

     vi-repeat-search-prev (vi command: N)
           Repeat the most recent history search in the opposite search direction.

     vi-replace-char (vi command: r)
           Switch to vi replace mode, and automatically switch back to vi command mode after the
           next character typed.  See ed-insert for a description of replace mode.  It is an
           error if the cursor is at the end of the edit buffer.

     vi-replace-mode (vi command: R)
           Switch to vi replace mode.  This is a variant of vi insert mode; see ed-insert for the
           difference.

     vi-search-next (vi command: ?)
           Replace the edit buffer with the next matching history entry.

     vi-search-prev (vi command: /)
           Replace the edit buffer with the previous matching history entry.

     vi-substitute-char (vi command: s)
           Delete the character at the cursor and switch to vi insert mode.

     vi-substitute-line (vi command: S)
           Delete the entire contents of the edit buffer, save a copy of it in the cut buffer,
           and enter vi insert mode.

     vi-to-column (vi command: |)
           Move the cursor to the column specified as the argument.  Can be used as a movement
           command after vi_change_meta, vi_delete_meta, or vi_yank.

     vi-to-history-line (vi command: G)
           Replace the edit buffer with the specified history entry.

     vi-to-next-char (vi command: t)
           Read one character from the terminal bypassing the normal line editing functionality
           and move the cursor to the right to the character before the next instance of that
           character in the edit buffer.  Can be used as a movement command after vi_change_meta,
           vi_delete_meta, or vi_yank.  If trying to read the character results in end of file or
           an error, call ed-end-of-file instead.  It is an error if the character is not found
           searching to the right in the edit buffer.

     vi-to-prev-char (vi command: T)
           Read one character from the terminal bypassing the normal line editing functionality
           and move the cursor to the left to the character after the next instance of that
           character in the edit buffer.  Can be used as a movement command after vi_change_meta,
           vi_delete_meta, or vi_yank.  If trying to read the character results in end of file or
           an error, call ed-end-of-file instead.  It is an error if the character is not found
           searching to the left in the edit buffer.

     vi-undo (vi command: u)
           Undo the last change.

     vi-undo-line (vi command: U)
           Undo all changes to the edit buffer.

     vi-yank (vi command: y)
           Copy the string from the cursor to the position specified by the following movement
           command to the cut buffer.  When given twice in a row, instead copy the whole contents
           of the edit buffer to the cut buffer.

     vi-yank-end (vi command: Y)
           Copy the string from the cursor to the end of the edit buffer to the cut buffer.

     vi-zero (vi command: 0)
           If in argument input mode, multiply the argument by ten.  Otherwise, move the cursor
           to the beginning of the edit buffer.  Can be used as a movement command after
           vi_change_meta, vi_delete_meta, or vi_yank.

   Macros
     If an input character is bound to the editor command ed-sequence-lead-in, editline attempts
     to call a macro.  If the input character by itself forms the name of a macro, that macro is
     executed.  Otherwise, additional input characters are read until the string read forms the
     name of a macro, in which case that macro is executed, or until the string read matches the
     beginning of none of the existing macro names, in which case the string including the final,
     mismatching character is discarded and the terminal bell is rung.

     There are two kinds of macros.  Command macros execute a single editor command.  Keyboard
     macros return a string of characters that is appended as a new line to the Input Queue.

     The following command macros are defined by default in vi command mode and in emacs mode:

           Esc [ A, Esc O A    ed-prev-history
           Esc [ B, Esc O B    ed-next-history
           Esc [ C, Esc O C    ed-next-char
           Esc [ D, Esc O D    ed-prev-char
           Esc [ F, Esc O F    ed-move-to-end
           Esc [ H, Esc O H    ed-move-to-beg

     In vi command mode, they are also defined by default without the initial escape character.

     In addition, the editline library tries to bind the strings generated by the arrow keys as
     reported by the terminfo(5) database to these editor commands, unless that would clobber
     user settings.

     In emacs mode, the two-character string “Ctrl-X Ctrl-X” is bound to the em-exchange-mark
     editor command.

   Input Queue
     The editline library maintains an input queue operated in FIFO mode.  Whenever it needs an
     input character, it takes the first character from the first line of the input queue.  When
     the queue is empty, it reads from the terminal.

     A line can be appended to the end of the input queue in several ways:

           -   By calling one of the keyboard Macros.

           -   By calling the editor command vi-redo.

           -   By calling the editor command vi-alias.

           -   By pressing a key in emacs incremental search mode that doesn't have a special
               meaning in that mode but returns to normal emacs mode.

           -   If an application program directly calls the functions el_push(3) or el_wpush(3),
               it can provide additional, program-specific ways of appending to the input queue.

SEE ALSO

     mg(1), vi(1), editline(3edit), el_wgets(3), el_wpush(3), el_wset(3), editrc(5edit)

HISTORY

     This manual page first appeared in OpenBSD 6.0 and NetBSD 8.

AUTHORS

     This manual page was written by Ingo Schwarze <schwarze@openbsd.org>.