diff options
Diffstat (limited to 'readline-doc-4.3/doc/rluserman.info')
| -rw-r--r-- | readline-doc-4.3/doc/rluserman.info | 1260 |
1 files changed, 0 insertions, 1260 deletions
diff --git a/readline-doc-4.3/doc/rluserman.info b/readline-doc-4.3/doc/rluserman.info deleted file mode 100644 index 3fccbd4..0000000 --- a/readline-doc-4.3/doc/rluserman.info +++ /dev/null @@ -1,1260 +0,0 @@ -This is rluserman.info, produced by makeinfo version 4.1 from -/usr/homes/chet/src/bash/readline-src/doc/rluserman.texinfo. - -INFO-DIR-SECTION Libraries -START-INFO-DIR-ENTRY -* RLuserman: (rluserman). The GNU readline library User's Manual. -END-INFO-DIR-ENTRY - - This document describes the end user interface of the GNU Readline -Library, a utility which aids in the consistency of user interface -across discrete programs that need to provide a command line interface. - - Copyright (C) 1988-2002 Free Software Foundation, Inc. - - Permission is granted to make and distribute verbatim copies of this -manual provided the copyright notice and this permission notice pare -preserved on all copies. - - Permission is granted to copy and distribute modified versions of -this manual under the conditions for verbatim copying, provided that -the entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - - Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be stated in a -translation approved by the Free Software Foundation. - - -File: rluserman.info, Node: Top, Next: Command Line Editing, Up: (dir) - -GNU Readline Library -******************** - - This document describes the end user interface of the GNU Readline -Library, a utility which aids in the consistency of user interface -across discrete programs that need to provide a command line interface. - -* Menu: - -* Command Line Editing:: GNU Readline User's Manual. - - -File: rluserman.info, Node: Command Line Editing, Prev: Top, Up: Top - -Command Line Editing -******************** - - This chapter describes the basic features of the GNU command line -editing interface. - -* Menu: - -* Introduction and Notation:: Notation used in this text. -* Readline Interaction:: The minimum set of commands for editing a line. -* Readline Init File:: Customizing Readline from a user's view. -* Bindable Readline Commands:: A description of most of the Readline commands - available for binding -* Readline vi Mode:: A short description of how to make Readline - behave like the vi editor. - - -File: rluserman.info, Node: Introduction and Notation, Next: Readline Interaction, Up: Command Line Editing - -Introduction to Line Editing -============================ - - The following paragraphs describe the notation used to represent -keystrokes. - - The text `C-k' is read as `Control-K' and describes the character -produced when the <k> key is pressed while the Control key is depressed. - - The text `M-k' is read as `Meta-K' and describes the character -produced when the Meta key (if you have one) is depressed, and the <k> -key is pressed. The Meta key is labeled <ALT> on many keyboards. On -keyboards with two keys labeled <ALT> (usually to either side of the -space bar), the <ALT> on the left side is generally set to work as a -Meta key. The <ALT> key on the right may also be configured to work as -a Meta key or may be configured as some other modifier, such as a -Compose key for typing accented characters. - - If you do not have a Meta or <ALT> key, or another key working as a -Meta key, the identical keystroke can be generated by typing <ESC> -_first_, and then typing <k>. Either process is known as "metafying" -the <k> key. - - The text `M-C-k' is read as `Meta-Control-k' and describes the -character produced by "metafying" `C-k'. - - In addition, several keys have their own names. Specifically, -<DEL>, <ESC>, <LFD>, <SPC>, <RET>, and <TAB> all stand for themselves -when seen in this text, or in an init file (*note Readline Init File::). -If your keyboard lacks a <LFD> key, typing <C-j> will produce the -desired character. The <RET> key may be labeled <Return> or <Enter> on -some keyboards. - - -File: rluserman.info, Node: Readline Interaction, Next: Readline Init File, Prev: Introduction and Notation, Up: Command Line Editing - -Readline Interaction -==================== - - Often during an interactive session you type in a long line of text, -only to notice that the first word on the line is misspelled. The -Readline library gives you a set of commands for manipulating the text -as you type it in, allowing you to just fix your typo, and not forcing -you to retype the majority of the line. Using these editing commands, -you move the cursor to the place that needs correction, and delete or -insert the text of the corrections. Then, when you are satisfied with -the line, you simply press <RET>. You do not have to be at the end of -the line to press <RET>; the entire line is accepted regardless of the -location of the cursor within the line. - -* Menu: - -* Readline Bare Essentials:: The least you need to know about Readline. -* Readline Movement Commands:: Moving about the input line. -* Readline Killing Commands:: How to delete text, and how to get it back! -* Readline Arguments:: Giving numeric arguments to commands. -* Searching:: Searching through previous lines. - - -File: rluserman.info, Node: Readline Bare Essentials, Next: Readline Movement Commands, Up: Readline Interaction - -Readline Bare Essentials ------------------------- - - In order to enter characters into the line, simply type them. The -typed character appears where the cursor was, and then the cursor moves -one space to the right. If you mistype a character, you can use your -erase character to back up and delete the mistyped character. - - Sometimes you may mistype a character, and not notice the error -until you have typed several other characters. In that case, you can -type `C-b' to move the cursor to the left, and then correct your -mistake. Afterwards, you can move the cursor to the right with `C-f'. - - When you add text in the middle of a line, you will notice that -characters to the right of the cursor are `pushed over' to make room -for the text that you have inserted. Likewise, when you delete text -behind the cursor, characters to the right of the cursor are `pulled -back' to fill in the blank space created by the removal of the text. A -list of the bare essentials for editing the text of an input line -follows. - -`C-b' - Move back one character. - -`C-f' - Move forward one character. - -<DEL> or <Backspace> - Delete the character to the left of the cursor. - -`C-d' - Delete the character underneath the cursor. - -Printing characters - Insert the character into the line at the cursor. - -`C-_' or `C-x C-u' - Undo the last editing command. You can undo all the way back to an - empty line. - -(Depending on your configuration, the <Backspace> key be set to delete -the character to the left of the cursor and the <DEL> key set to delete -the character underneath the cursor, like `C-d', rather than the -character to the left of the cursor.) - - -File: rluserman.info, Node: Readline Movement Commands, Next: Readline Killing Commands, Prev: Readline Bare Essentials, Up: Readline Interaction - -Readline Movement Commands --------------------------- - - The above table describes the most basic keystrokes that you need in -order to do editing of the input line. For your convenience, many -other commands have been added in addition to `C-b', `C-f', `C-d', and -<DEL>. Here are some commands for moving more rapidly about the line. - -`C-a' - Move to the start of the line. - -`C-e' - Move to the end of the line. - -`M-f' - Move forward a word, where a word is composed of letters and - digits. - -`M-b' - Move backward a word. - -`C-l' - Clear the screen, reprinting the current line at the top. - - Notice how `C-f' moves forward a character, while `M-f' moves -forward a word. It is a loose convention that control keystrokes -operate on characters while meta keystrokes operate on words. - - -File: rluserman.info, Node: Readline Killing Commands, Next: Readline Arguments, Prev: Readline Movement Commands, Up: Readline Interaction - -Readline Killing Commands -------------------------- - - "Killing" text means to delete the text from the line, but to save -it away for later use, usually by "yanking" (re-inserting) it back into -the line. (`Cut' and `paste' are more recent jargon for `kill' and -`yank'.) - - If the description for a command says that it `kills' text, then you -can be sure that you can get the text back in a different (or the same) -place later. - - When you use a kill command, the text is saved in a "kill-ring". -Any number of consecutive kills save all of the killed text together, so -that when you yank it back, you get it all. The kill ring is not line -specific; the text that you killed on a previously typed line is -available to be yanked back later, when you are typing another line. - - Here is the list of commands for killing text. - -`C-k' - Kill the text from the current cursor position to the end of the - line. - -`M-d' - Kill from the cursor to the end of the current word, or, if between - words, to the end of the next word. Word boundaries are the same - as those used by `M-f'. - -`M-<DEL>' - Kill from the cursor the start of the current word, or, if between - words, to the start of the previous word. Word boundaries are the - same as those used by `M-b'. - -`C-w' - Kill from the cursor to the previous whitespace. This is - different than `M-<DEL>' because the word boundaries differ. - - Here is how to "yank" the text back into the line. Yanking means to -copy the most-recently-killed text from the kill buffer. - -`C-y' - Yank the most recently killed text back into the buffer at the - cursor. - -`M-y' - Rotate the kill-ring, and yank the new top. You can only do this - if the prior command is `C-y' or `M-y'. - - -File: rluserman.info, Node: Readline Arguments, Next: Searching, Prev: Readline Killing Commands, Up: Readline Interaction - -Readline Arguments ------------------- - - You can pass numeric arguments to Readline commands. Sometimes the -argument acts as a repeat count, other times it is the sign of the -argument that is significant. If you pass a negative argument to a -command which normally acts in a forward direction, that command will -act in a backward direction. For example, to kill text back to the -start of the line, you might type `M-- C-k'. - - The general way to pass numeric arguments to a command is to type -meta digits before the command. If the first `digit' typed is a minus -sign (`-'), then the sign of the argument will be negative. Once you -have typed one meta digit to get the argument started, you can type the -remainder of the digits, and then the command. For example, to give -the `C-d' command an argument of 10, you could type `M-1 0 C-d', which -will delete the next ten characters on the input line. - - -File: rluserman.info, Node: Searching, Prev: Readline Arguments, Up: Readline Interaction - -Searching for Commands in the History -------------------------------------- - - Readline provides commands for searching through the command history -for lines containing a specified string. There are two search modes: -"incremental" and "non-incremental". - - Incremental searches begin before the user has finished typing the -search string. As each character of the search string is typed, -Readline displays the next entry from the history matching the string -typed so far. An incremental search requires only as many characters -as needed to find the desired history entry. To search backward in the -history for a particular string, type `C-r'. Typing `C-s' searches -forward through the history. The characters present in the value of -the `isearch-terminators' variable are used to terminate an incremental -search. If that variable has not been assigned a value, the <ESC> and -`C-J' characters will terminate an incremental search. `C-g' will -abort an incremental search and restore the original line. When the -search is terminated, the history entry containing the search string -becomes the current line. - - To find other matching entries in the history list, type `C-r' or -`C-s' as appropriate. This will search backward or forward in the -history for the next entry matching the search string typed so far. -Any other key sequence bound to a Readline command will terminate the -search and execute that command. For instance, a <RET> will terminate -the search and accept the line, thereby executing the command from the -history list. A movement command will terminate the search, make the -last line found the current line, and begin editing. - - Readline remembers the last incremental search string. If two -`C-r's are typed without any intervening characters defining a new -search string, any remembered search string is used. - - Non-incremental searches read the entire search string before -starting to search for matching history lines. The search string may be -typed by the user or be part of the contents of the current line. - - -File: rluserman.info, Node: Readline Init File, Next: Bindable Readline Commands, Prev: Readline Interaction, Up: Command Line Editing - -Readline Init File -================== - - Although the Readline library comes with a set of Emacs-like -keybindings installed by default, it is possible to use a different set -of keybindings. Any user can customize programs that use Readline by -putting commands in an "inputrc" file, conventionally in his home -directory. The name of this file is taken from the value of the -environment variable `INPUTRC'. If that variable is unset, the default -is `~/.inputrc'. - - When a program which uses the Readline library starts up, the init -file is read, and the key bindings are set. - - In addition, the `C-x C-r' command re-reads this init file, thus -incorporating any changes that you might have made to it. - -* Menu: - -* Readline Init File Syntax:: Syntax for the commands in the inputrc file. - -* Conditional Init Constructs:: Conditional key bindings in the inputrc file. - -* Sample Init File:: An example inputrc file. - - -File: rluserman.info, Node: Readline Init File Syntax, Next: Conditional Init Constructs, Up: Readline Init File - -Readline Init File Syntax -------------------------- - - There are only a few basic constructs allowed in the Readline init -file. Blank lines are ignored. Lines beginning with a `#' are -comments. Lines beginning with a `$' indicate conditional constructs -(*note Conditional Init Constructs::). Other lines denote variable -settings and key bindings. - -Variable Settings - You can modify the run-time behavior of Readline by altering the - values of variables in Readline using the `set' command within the - init file. The syntax is simple: - - set VARIABLE VALUE - - Here, for example, is how to change from the default Emacs-like - key binding to use `vi' line editing commands: - - set editing-mode vi - - Variable names and values, where appropriate, are recognized - without regard to case. - - A great deal of run-time behavior is changeable with the following - variables. - - `bell-style' - Controls what happens when Readline wants to ring the - terminal bell. If set to `none', Readline never rings the - bell. If set to `visible', Readline uses a visible bell if - one is available. If set to `audible' (the default), - Readline attempts to ring the terminal's bell. - - `comment-begin' - The string to insert at the beginning of the line when the - `insert-comment' command is executed. The default value is - `"#"'. - - `completion-ignore-case' - If set to `on', Readline performs filename matching and - completion in a case-insensitive fashion. The default value - is `off'. - - `completion-query-items' - The number of possible completions that determines when the - user is asked whether he wants to see the list of - possibilities. If the number of possible completions is - greater than this value, Readline will ask the user whether - or not he wishes to view them; otherwise, they are simply - listed. This variable must be set to an integer value - greater than or equal to 0. The default limit is `100'. - - `convert-meta' - If set to `on', Readline will convert characters with the - eighth bit set to an ASCII key sequence by stripping the - eighth bit and prefixing an <ESC> character, converting them - to a meta-prefixed key sequence. The default value is `on'. - - `disable-completion' - If set to `On', Readline will inhibit word completion. - Completion characters will be inserted into the line as if - they had been mapped to `self-insert'. The default is `off'. - - `editing-mode' - The `editing-mode' variable controls which default set of key - bindings is used. By default, Readline starts up in Emacs - editing mode, where the keystrokes are most similar to Emacs. - This variable can be set to either `emacs' or `vi'. - - `enable-keypad' - When set to `on', Readline will try to enable the application - keypad when it is called. Some systems need this to enable - the arrow keys. The default is `off'. - - `expand-tilde' - If set to `on', tilde expansion is performed when Readline - attempts word completion. The default is `off'. - - If set to `on', the history code attempts to place point at - the same location on each history line retrived with - `previous-history' or `next-history'. - - `horizontal-scroll-mode' - This variable can be set to either `on' or `off'. Setting it - to `on' means that the text of the lines being edited will - scroll horizontally on a single screen line when they are - longer than the width of the screen, instead of wrapping onto - a new screen line. By default, this variable is set to `off'. - - `input-meta' - If set to `on', Readline will enable eight-bit input (it will - not clear the eighth bit in the characters it reads), - regardless of what the terminal claims it can support. The - default value is `off'. The name `meta-flag' is a synonym - for this variable. - - `isearch-terminators' - The string of characters that should terminate an incremental - search without subsequently executing the character as a - command (*note Searching::). If this variable has not been - given a value, the characters <ESC> and `C-J' will terminate - an incremental search. - - `keymap' - Sets Readline's idea of the current keymap for key binding - commands. Acceptable `keymap' names are `emacs', - `emacs-standard', `emacs-meta', `emacs-ctlx', `vi', `vi-move', - `vi-command', and `vi-insert'. `vi' is equivalent to - `vi-command'; `emacs' is equivalent to `emacs-standard'. The - default value is `emacs'. The value of the `editing-mode' - variable also affects the default keymap. - - `mark-directories' - If set to `on', completed directory names have a slash - appended. The default is `on'. - - `mark-modified-lines' - This variable, when set to `on', causes Readline to display an - asterisk (`*') at the start of history lines which have been - modified. This variable is `off' by default. - - `mark-symlinked-directories' - If set to `on', completed names which are symbolic links to - directories have a slash appended (subject to the value of - `mark-directories'). The default is `off'. - - `match-hidden-files' - This variable, when set to `on', causes Readline to match - files whose names begin with a `.' (hidden files) when - performing filename completion, unless the leading `.' is - supplied by the user in the filename to be completed. This - variable is `on' by default. - - `output-meta' - If set to `on', Readline will display characters with the - eighth bit set directly rather than as a meta-prefixed escape - sequence. The default is `off'. - - `page-completions' - If set to `on', Readline uses an internal `more'-like pager - to display a screenful of possible completions at a time. - This variable is `on' by default. - - `print-completions-horizontally' - If set to `on', Readline will display completions with matches - sorted horizontally in alphabetical order, rather than down - the screen. The default is `off'. - - `show-all-if-ambiguous' - This alters the default behavior of the completion functions. - If set to `on', words which have more than one possible - completion cause the matches to be listed immediately instead - of ringing the bell. The default value is `off'. - - `visible-stats' - If set to `on', a character denoting a file's type is - appended to the filename when listing possible completions. - The default is `off'. - -Key Bindings - The syntax for controlling key bindings in the init file is - simple. First you need to find the name of the command that you - want to change. The following sections contain tables of the - command name, the default keybinding, if any, and a short - description of what the command does. - - Once you know the name of the command, simply place on a line in - the init file the name of the key you wish to bind the command to, - a colon, and then the name of the command. The name of the key - can be expressed in different ways, depending on what you find most - comfortable. - - In addition to command names, readline allows keys to be bound to - a string that is inserted when the key is pressed (a MACRO). - - KEYNAME: FUNCTION-NAME or MACRO - KEYNAME is the name of a key spelled out in English. For - example: - Control-u: universal-argument - Meta-Rubout: backward-kill-word - Control-o: "> output" - - In the above example, `C-u' is bound to the function - `universal-argument', `M-DEL' is bound to the function - `backward-kill-word', and `C-o' is bound to run the macro - expressed on the right hand side (that is, to insert the text - `> output' into the line). - - A number of symbolic character names are recognized while - processing this key binding syntax: DEL, ESC, ESCAPE, LFD, - NEWLINE, RET, RETURN, RUBOUT, SPACE, SPC, and TAB. - - "KEYSEQ": FUNCTION-NAME or MACRO - KEYSEQ differs from KEYNAME above in that strings denoting an - entire key sequence can be specified, by placing the key - sequence in double quotes. Some GNU Emacs style key escapes - can be used, as in the following example, but the special - character names are not recognized. - - "\C-u": universal-argument - "\C-x\C-r": re-read-init-file - "\e[11~": "Function Key 1" - - In the above example, `C-u' is again bound to the function - `universal-argument' (just as it was in the first example), - `C-x C-r' is bound to the function `re-read-init-file', and - `<ESC> <[> <1> <1> <~>' is bound to insert the text `Function - Key 1'. - - The following GNU Emacs style escape sequences are available when - specifying key sequences: - - `\C-' - control prefix - - `\M-' - meta prefix - - `\e' - an escape character - - `\\' - backslash - - `\"' - <">, a double quotation mark - - `\'' - <'>, a single quote or apostrophe - - In addition to the GNU Emacs style escape sequences, a second set - of backslash escapes is available: - - `\a' - alert (bell) - - `\b' - backspace - - `\d' - delete - - `\f' - form feed - - `\n' - newline - - `\r' - carriage return - - `\t' - horizontal tab - - `\v' - vertical tab - - `\NNN' - the eight-bit character whose value is the octal value NNN - (one to three digits) - - `\xHH' - the eight-bit character whose value is the hexadecimal value - HH (one or two hex digits) - - When entering the text of a macro, single or double quotes must be - used to indicate a macro definition. Unquoted text is assumed to - be a function name. In the macro body, the backslash escapes - described above are expanded. Backslash will quote any other - character in the macro text, including `"' and `''. For example, - the following binding will make `C-x \' insert a single `\' into - the line: - "\C-x\\": "\\" - - -File: rluserman.info, Node: Conditional Init Constructs, Next: Sample Init File, Prev: Readline Init File Syntax, Up: Readline Init File - -Conditional Init Constructs ---------------------------- - - Readline implements a facility similar in spirit to the conditional -compilation features of the C preprocessor which allows key bindings -and variable settings to be performed as the result of tests. There -are four parser directives used. - -`$if' - The `$if' construct allows bindings to be made based on the - editing mode, the terminal being used, or the application using - Readline. The text of the test extends to the end of the line; no - characters are required to isolate it. - - `mode' - The `mode=' form of the `$if' directive is used to test - whether Readline is in `emacs' or `vi' mode. This may be - used in conjunction with the `set keymap' command, for - instance, to set bindings in the `emacs-standard' and - `emacs-ctlx' keymaps only if Readline is starting out in - `emacs' mode. - - `term' - The `term=' form may be used to include terminal-specific key - bindings, perhaps to bind the key sequences output by the - terminal's function keys. The word on the right side of the - `=' is tested against both the full name of the terminal and - the portion of the terminal name before the first `-'. This - allows `sun' to match both `sun' and `sun-cmd', for instance. - - `application' - The APPLICATION construct is used to include - application-specific settings. Each program using the - Readline library sets the APPLICATION NAME, and you can test - for a particular value. This could be used to bind key - sequences to functions useful for a specific program. For - instance, the following command adds a key sequence that - quotes the current or previous word in Bash: - $if Bash - # Quote the current or previous word - "\C-xq": "\eb\"\ef\"" - $endif - -`$endif' - This command, as seen in the previous example, terminates an `$if' - command. - -`$else' - Commands in this branch of the `$if' directive are executed if the - test fails. - -`$include' - This directive takes a single filename as an argument and reads - commands and bindings from that file. For example, the following - directive reads from `/etc/inputrc': - $include /etc/inputrc - - -File: rluserman.info, Node: Sample Init File, Prev: Conditional Init Constructs, Up: Readline Init File - -Sample Init File ----------------- - - Here is an example of an INPUTRC file. This illustrates key -binding, variable assignment, and conditional syntax. - - - # This file controls the behaviour of line input editing for - # programs that use the GNU Readline library. Existing - # programs include FTP, Bash, and GDB. - # - # You can re-read the inputrc file with C-x C-r. - # Lines beginning with '#' are comments. - # - # First, include any systemwide bindings and variable - # assignments from /etc/Inputrc - $include /etc/Inputrc - - # - # Set various bindings for emacs mode. - - set editing-mode emacs - - $if mode=emacs - - Meta-Control-h: backward-kill-word Text after the function name is ignored - - # - # Arrow keys in keypad mode - # - #"\M-OD": backward-char - #"\M-OC": forward-char - #"\M-OA": previous-history - #"\M-OB": next-history - # - # Arrow keys in ANSI mode - # - "\M-[D": backward-char - "\M-[C": forward-char - "\M-[A": previous-history - "\M-[B": next-history - # - # Arrow keys in 8 bit keypad mode - # - #"\M-\C-OD": backward-char - #"\M-\C-OC": forward-char - #"\M-\C-OA": previous-history - #"\M-\C-OB": next-history - # - # Arrow keys in 8 bit ANSI mode - # - #"\M-\C-[D": backward-char - #"\M-\C-[C": forward-char - #"\M-\C-[A": previous-history - #"\M-\C-[B": next-history - - C-q: quoted-insert - - $endif - - # An old-style binding. This happens to be the default. - TAB: complete - - # Macros that are convenient for shell interaction - $if Bash - # edit the path - "\C-xp": "PATH=${PATH}\e\C-e\C-a\ef\C-f" - # prepare to type a quoted word -- - # insert open and close double quotes - # and move to just after the open quote - "\C-x\"": "\"\"\C-b" - # insert a backslash (testing backslash escapes - # in sequences and macros) - "\C-x\\": "\\" - # Quote the current or previous word - "\C-xq": "\eb\"\ef\"" - # Add a binding to refresh the line, which is unbound - "\C-xr": redraw-current-line - # Edit variable on current line. - "\M-\C-v": "\C-a\C-k$\C-y\M-\C-e\C-a\C-y=" - $endif - - # use a visible bell if one is available - set bell-style visible - - # don't strip characters to 7 bits when reading - set input-meta on - - # allow iso-latin1 characters to be inserted rather - # than converted to prefix-meta sequences - set convert-meta off - - # display characters with the eighth bit set directly - # rather than as meta-prefixed characters - set output-meta on - - # if there are more than 150 possible completions for - # a word, ask the user if he wants to see all of them - set completion-query-items 150 - - # For FTP - $if Ftp - "\C-xg": "get \M-?" - "\C-xt": "put \M-?" - "\M-.": yank-last-arg - $endif - - -File: rluserman.info, Node: Bindable Readline Commands, Next: Readline vi Mode, Prev: Readline Init File, Up: Command Line Editing - -Bindable Readline Commands -========================== - -* Menu: - -* Commands For Moving:: Moving about the line. -* Commands For History:: Getting at previous lines. -* Commands For Text:: Commands for changing text. -* Commands For Killing:: Commands for killing and yanking. -* Numeric Arguments:: Specifying numeric arguments, repeat counts. -* Commands For Completion:: Getting Readline to do the typing for you. -* Keyboard Macros:: Saving and re-executing typed characters -* Miscellaneous Commands:: Other miscellaneous commands. - - This section describes Readline commands that may be bound to key -sequences. Command names without an accompanying key sequence are -unbound by default. - - In the following descriptions, "point" refers to the current cursor -position, and "mark" refers to a cursor position saved by the -`set-mark' command. The text between the point and mark is referred to -as the "region". - - -File: rluserman.info, Node: Commands For Moving, Next: Commands For History, Up: Bindable Readline Commands - -Commands For Moving -------------------- - -`beginning-of-line (C-a)' - Move to the start of the current line. - -`end-of-line (C-e)' - Move to the end of the line. - -`forward-char (C-f)' - Move forward a character. - -`backward-char (C-b)' - Move back a character. - -`forward-word (M-f)' - Move forward to the end of the next word. Words are composed of - letters and digits. - -`backward-word (M-b)' - Move back to the start of the current or previous word. Words are - composed of letters and digits. - -`clear-screen (C-l)' - Clear the screen and redraw the current line, leaving the current - line at the top of the screen. - -`redraw-current-line ()' - Refresh the current line. By default, this is unbound. - - -File: rluserman.info, Node: Commands For History, Next: Commands For Text, Prev: Commands For Moving, Up: Bindable Readline Commands - -Commands For Manipulating The History -------------------------------------- - -`accept-line (Newline or Return)' - Accept the line regardless of where the cursor is. If this line is - non-empty, it may be added to the history list for future recall - with `add_history()'. If this line is a modified history line, - the history line is restored to its original state. - -`previous-history (C-p)' - Move `back' through the history list, fetching the previous - command. - -`next-history (C-n)' - Move `forward' through the history list, fetching the next command. - -`beginning-of-history (M-<)' - Move to the first line in the history. - -`end-of-history (M->)' - Move to the end of the input history, i.e., the line currently - being entered. - -`reverse-search-history (C-r)' - Search backward starting at the current line and moving `up' - through the history as necessary. This is an incremental search. - -`forward-search-history (C-s)' - Search forward starting at the current line and moving `down' - through the the history as necessary. This is an incremental - search. - -`non-incremental-reverse-search-history (M-p)' - Search backward starting at the current line and moving `up' - through the history as necessary using a non-incremental search - for a string supplied by the user. - -`non-incremental-forward-search-history (M-n)' - Search forward starting at the current line and moving `down' - through the the history as necessary using a non-incremental search - for a string supplied by the user. - -`history-search-forward ()' - Search forward through the history for the string of characters - between the start of the current line and the point. This is a - non-incremental search. By default, this command is unbound. - -`history-search-backward ()' - Search backward through the history for the string of characters - between the start of the current line and the point. This is a - non-incremental search. By default, this command is unbound. - -`yank-nth-arg (M-C-y)' - Insert the first argument to the previous command (usually the - second word on the previous line) at point. With an argument N, - insert the Nth word from the previous command (the words in the - previous command begin with word 0). A negative argument inserts - the Nth word from the end of the previous command. - -`yank-last-arg (M-. or M-_)' - Insert last argument to the previous command (the last word of the - previous history entry). With an argument, behave exactly like - `yank-nth-arg'. Successive calls to `yank-last-arg' move back - through the history list, inserting the last argument of each line - in turn. - - -File: rluserman.info, Node: Commands For Text, Next: Commands For Killing, Prev: Commands For History, Up: Bindable Readline Commands - -Commands For Changing Text --------------------------- - -`delete-char (C-d)' - Delete the character at point. If point is at the beginning of - the line, there are no characters in the line, and the last - character typed was not bound to `delete-char', then return EOF. - -`backward-delete-char (Rubout)' - Delete the character behind the cursor. A numeric argument means - to kill the characters instead of deleting them. - -`forward-backward-delete-char ()' - Delete the character under the cursor, unless the cursor is at the - end of the line, in which case the character behind the cursor is - deleted. By default, this is not bound to a key. - -`quoted-insert (C-q or C-v)' - Add the next character typed to the line verbatim. This is how to - insert key sequences like `C-q', for example. - -`tab-insert (M-<TAB>)' - Insert a tab character. - -`self-insert (a, b, A, 1, !, ...)' - Insert yourself. - -`transpose-chars (C-t)' - Drag the character before the cursor forward over the character at - the cursor, moving the cursor forward as well. If the insertion - point is at the end of the line, then this transposes the last two - characters of the line. Negative arguments have no effect. - -`transpose-words (M-t)' - Drag the word before point past the word after point, moving point - past that word as well. If the insertion point is at the end of - the line, this transposes the last two words on the line. - -`upcase-word (M-u)' - Uppercase the current (or following) word. With a negative - argument, uppercase the previous word, but do not move the cursor. - -`downcase-word (M-l)' - Lowercase the current (or following) word. With a negative - argument, lowercase the previous word, but do not move the cursor. - -`capitalize-word (M-c)' - Capitalize the current (or following) word. With a negative - argument, capitalize the previous word, but do not move the cursor. - -`overwrite-mode ()' - Toggle overwrite mode. With an explicit positive numeric argument, - switches to overwrite mode. With an explicit non-positive numeric - argument, switches to insert mode. This command affects only - `emacs' mode; `vi' mode does overwrite differently. Each call to - `readline()' starts in insert mode. - - In overwrite mode, characters bound to `self-insert' replace the - text at point rather than pushing the text to the right. - Characters bound to `backward-delete-char' replace the character - before point with a space. - - By default, this command is unbound. - - -File: rluserman.info, Node: Commands For Killing, Next: Numeric Arguments, Prev: Commands For Text, Up: Bindable Readline Commands - -Killing And Yanking -------------------- - -`kill-line (C-k)' - Kill the text from point to the end of the line. - -`backward-kill-line (C-x Rubout)' - Kill backward to the beginning of the line. - -`unix-line-discard (C-u)' - Kill backward from the cursor to the beginning of the current line. - -`kill-whole-line ()' - Kill all characters on the current line, no matter where point is. - By default, this is unbound. - -`kill-word (M-d)' - Kill from point to the end of the current word, or if between - words, to the end of the next word. Word boundaries are the same - as `forward-word'. - -`backward-kill-word (M-<DEL>)' - Kill the word behind point. Word boundaries are the same as - `backward-word'. - -`unix-word-rubout (C-w)' - Kill the word behind point, using white space as a word boundary. - The killed text is saved on the kill-ring. - -`delete-horizontal-space ()' - Delete all spaces and tabs around point. By default, this is - unbound. - -`kill-region ()' - Kill the text in the current region. By default, this command is - unbound. - -`copy-region-as-kill ()' - Copy the text in the region to the kill buffer, so it can be yanked - right away. By default, this command is unbound. - -`copy-backward-word ()' - Copy the word before point to the kill buffer. The word - boundaries are the same as `backward-word'. By default, this - command is unbound. - -`copy-forward-word ()' - Copy the word following point to the kill buffer. The word - boundaries are the same as `forward-word'. By default, this - command is unbound. - -`yank (C-y)' - Yank the top of the kill ring into the buffer at point. - -`yank-pop (M-y)' - Rotate the kill-ring, and yank the new top. You can only do this - if the prior command is `yank' or `yank-pop'. - - -File: rluserman.info, Node: Numeric Arguments, Next: Commands For Completion, Prev: Commands For Killing, Up: Bindable Readline Commands - -Specifying Numeric Arguments ----------------------------- - -`digit-argument (M-0, M-1, ... M--)' - Add this digit to the argument already accumulating, or start a new - argument. `M--' starts a negative argument. - -`universal-argument ()' - This is another way to specify an argument. If this command is - followed by one or more digits, optionally with a leading minus - sign, those digits define the argument. If the command is - followed by digits, executing `universal-argument' again ends the - numeric argument, but is otherwise ignored. As a special case, if - this command is immediately followed by a character that is - neither a digit or minus sign, the argument count for the next - command is multiplied by four. The argument count is initially - one, so executing this function the first time makes the argument - count four, a second time makes the argument count sixteen, and so - on. By default, this is not bound to a key. - - -File: rluserman.info, Node: Commands For Completion, Next: Keyboard Macros, Prev: Numeric Arguments, Up: Bindable Readline Commands - -Letting Readline Type For You ------------------------------ - -`complete (<TAB>)' - Attempt to perform completion on the text before point. The - actual completion performed is application-specific. The default - is filename completion. - -`possible-completions (M-?)' - List the possible completions of the text before point. - -`insert-completions (M-*)' - Insert all completions of the text before point that would have - been generated by `possible-completions'. - -`menu-complete ()' - Similar to `complete', but replaces the word to be completed with - a single match from the list of possible completions. Repeated - execution of `menu-complete' steps through the list of possible - completions, inserting each match in turn. At the end of the list - of completions, the bell is rung (subject to the setting of - `bell-style') and the original text is restored. An argument of N - moves N positions forward in the list of matches; a negative - argument may be used to move backward through the list. This - command is intended to be bound to <TAB>, but is unbound by - default. - -`delete-char-or-list ()' - Deletes the character under the cursor if not at the beginning or - end of the line (like `delete-char'). If at the end of the line, - behaves identically to `possible-completions'. This command is - unbound by default. - - -File: rluserman.info, Node: Keyboard Macros, Next: Miscellaneous Commands, Prev: Commands For Completion, Up: Bindable Readline Commands - -Keyboard Macros ---------------- - -`start-kbd-macro (C-x ()' - Begin saving the characters typed into the current keyboard macro. - -`end-kbd-macro (C-x ))' - Stop saving the characters typed into the current keyboard macro - and save the definition. - -`call-last-kbd-macro (C-x e)' - Re-execute the last keyboard macro defined, by making the - characters in the macro appear as if typed at the keyboard. - - -File: rluserman.info, Node: Miscellaneous Commands, Prev: Keyboard Macros, Up: Bindable Readline Commands - -Some Miscellaneous Commands ---------------------------- - -`re-read-init-file (C-x C-r)' - Read in the contents of the INPUTRC file, and incorporate any - bindings or variable assignments found there. - -`abort (C-g)' - Abort the current editing command and ring the terminal's bell - (subject to the setting of `bell-style'). - -`do-uppercase-version (M-a, M-b, M-X, ...)' - If the metafied character X is lowercase, run the command that is - bound to the corresponding uppercase character. - -`prefix-meta (<ESC>)' - Metafy the next character typed. This is for keyboards without a - meta key. Typing `<ESC> f' is equivalent to typing `M-f'. - -`undo (C-_ or C-x C-u)' - Incremental undo, separately remembered for each line. - -`revert-line (M-r)' - Undo all changes made to this line. This is like executing the - `undo' command enough times to get back to the beginning. - -`tilde-expand (M-~)' - Perform tilde expansion on the current word. - -`set-mark (C-@)' - Set the mark to the point. If a numeric argument is supplied, the - mark is set to that position. - -`exchange-point-and-mark (C-x C-x)' - Swap the point with the mark. The current cursor position is set - to the saved position, and the old cursor position is saved as the - mark. - -`character-search (C-])' - A character is read and point is moved to the next occurrence of - that character. A negative count searches for previous - occurrences. - -`character-search-backward (M-C-])' - A character is read and point is moved to the previous occurrence - of that character. A negative count searches for subsequent - occurrences. - -`insert-comment (M-#)' - Without a numeric argument, the value of the `comment-begin' - variable is inserted at the beginning of the current line. If a - numeric argument is supplied, this command acts as a toggle: if - the characters at the beginning of the line do not match the value - of `comment-begin', the value is inserted, otherwise the - characters in `comment-begin' are deleted from the beginning of - the line. In either case, the line is accepted as if a newline - had been typed. - -`dump-functions ()' - Print all of the functions and their key bindings to the Readline - output stream. If a numeric argument is supplied, the output is - formatted in such a way that it can be made part of an INPUTRC - file. This command is unbound by default. - -`dump-variables ()' - Print all of the settable variables and their values to the - Readline output stream. If a numeric argument is supplied, the - output is formatted in such a way that it can be made part of an - INPUTRC file. This command is unbound by default. - -`dump-macros ()' - Print all of the Readline key sequences bound to macros and the - strings they output. If a numeric argument is supplied, the - output is formatted in such a way that it can be made part of an - INPUTRC file. This command is unbound by default. - -`emacs-editing-mode (C-e)' - When in `vi' command mode, this causes a switch to `emacs' editing - mode. - -`vi-editing-mode (M-C-j)' - When in `emacs' editing mode, this causes a switch to `vi' editing - mode. - - -File: rluserman.info, Node: Readline vi Mode, Prev: Bindable Readline Commands, Up: Command Line Editing - -Readline vi Mode -================ - - While the Readline library does not have a full set of `vi' editing -functions, it does contain enough to allow simple editing of the line. -The Readline `vi' mode behaves as specified in the POSIX 1003.2 -standard. - - In order to switch interactively between `emacs' and `vi' editing -modes, use the command `M-C-j' (bound to emacs-editing-mode when in -`vi' mode and to vi-editing-mode in `emacs' mode). The Readline -default is `emacs' mode. - - When you enter a line in `vi' mode, you are already placed in -`insertion' mode, as if you had typed an `i'. Pressing <ESC> switches -you into `command' mode, where you can edit the text of the line with -the standard `vi' movement keys, move to previous history lines with -`k' and subsequent lines with `j', and so forth. - - - -Tag Table: -Node: Top1208 -Node: Command Line Editing1604 -Node: Introduction and Notation2218 -Node: Readline Interaction3837 -Node: Readline Bare Essentials5025 -Node: Readline Movement Commands6807 -Node: Readline Killing Commands7765 -Node: Readline Arguments9675 -Node: Searching10712 -Node: Readline Init File12856 -Node: Readline Init File Syntax13918 -Node: Conditional Init Constructs24802 -Node: Sample Init File27328 -Node: Bindable Readline Commands30513 -Node: Commands For Moving31564 -Node: Commands For History32414 -Node: Commands For Text35273 -Node: Commands For Killing37988 -Node: Numeric Arguments39940 -Node: Commands For Completion41069 -Node: Keyboard Macros42602 -Node: Miscellaneous Commands43162 -Node: Readline vi Mode46512 - -End Tag Table |