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+Date: Thu, 22 Jul 1999 18:37:46 -0600 (MDT)
+Message-Id: <199907230037.SAA01089@wijiji.santafe.edu>
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+From: Richard Stallman <rms@gnu.org>
+To: chet@nike.ins.cwru.edu
+Subject: Use of Readline
+Reply-to: rms@gnu.org
+
+I think Allbery's suggestion is a good one. So please add this text
+in a suitable place. Please don't put it in the GPL itself; that
+should be the same as the GPL everywhere else. Putting it in the
+README and/or the documentation would be a good idea.
+
+
+======================================================================
+Our position on the use of Readline through a shared-library linking
+mechanism is that there is no legal difference between shared-library
+linking and static linking--either kind of linking combines various
+modules into a single larger work. The conditions for using Readline
+in a larger work are stated in section 3 of the GNU GPL.
+
+
--- /dev/null
+<HTML>
+<HEAD>
+<!-- This HTML file has been created by texi2html 1.52
+ from /usr/homes/chet/src/bash/readline-src/doc/rluserman.texinfo on 1 March 2000 -->
+
+<TITLE>GNU Readline Library</TITLE>
+</HEAD>
+<BODY>
+<H1>GNU Readline Library User Interface</H1>
+<H2>Edition 4.1, for <CODE>Readline Library</CODE> Version 4.1.</H2>
+<H2>January 2000</H2>
+<ADDRESS>Brian Fox, Free Software Foundation</ADDRESS>
+<ADDRESS>Chet Ramey, Case Western Reserve University</ADDRESS>
+<P>
+<P><HR><P>
+<H1>Table of Contents</H1>
+<UL>
+<LI><A NAME="TOC1" HREF="rluserman.html#SEC1">Command Line Editing</A>
+<UL>
+<LI><A NAME="TOC2" HREF="rluserman.html#SEC2">Introduction to Line Editing</A>
+<LI><A NAME="TOC3" HREF="rluserman.html#SEC3">Readline Interaction</A>
+<UL>
+<LI><A NAME="TOC4" HREF="rluserman.html#SEC4">Readline Bare Essentials</A>
+<LI><A NAME="TOC5" HREF="rluserman.html#SEC5">Readline Movement Commands</A>
+<LI><A NAME="TOC6" HREF="rluserman.html#SEC6">Readline Killing Commands</A>
+<LI><A NAME="TOC7" HREF="rluserman.html#SEC7">Readline Arguments</A>
+<LI><A NAME="TOC8" HREF="rluserman.html#SEC8">Searching for Commands in the History</A>
+</UL>
+<LI><A NAME="TOC9" HREF="rluserman.html#SEC9">Readline Init File</A>
+<UL>
+<LI><A NAME="TOC10" HREF="rluserman.html#SEC10">Readline Init File Syntax</A>
+<LI><A NAME="TOC11" HREF="rluserman.html#SEC11">Conditional Init Constructs</A>
+<LI><A NAME="TOC12" HREF="rluserman.html#SEC12">Sample Init File</A>
+</UL>
+<LI><A NAME="TOC13" HREF="rluserman.html#SEC13">Bindable Readline Commands</A>
+<UL>
+<LI><A NAME="TOC14" HREF="rluserman.html#SEC14">Commands For Moving</A>
+<LI><A NAME="TOC15" HREF="rluserman.html#SEC15">Commands For Manipulating The History</A>
+<LI><A NAME="TOC16" HREF="rluserman.html#SEC16">Commands For Changing Text</A>
+<LI><A NAME="TOC17" HREF="rluserman.html#SEC17">Killing And Yanking</A>
+<LI><A NAME="TOC18" HREF="rluserman.html#SEC18">Specifying Numeric Arguments</A>
+<LI><A NAME="TOC19" HREF="rluserman.html#SEC19">Letting Readline Type For You</A>
+<LI><A NAME="TOC20" HREF="rluserman.html#SEC20">Keyboard Macros</A>
+<LI><A NAME="TOC21" HREF="rluserman.html#SEC21">Some Miscellaneous Commands</A>
+</UL>
+<LI><A NAME="TOC22" HREF="rluserman.html#SEC22">Readline vi Mode</A>
+</UL>
+</UL>
+<P><HR><P>
+
+<P>
+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.
+
+</P>
+<P>
+Published by the Free Software Foundation <BR>
+59 Temple Place, Suite 330, <BR>
+Boston, MA 02111 USA
+
+</P>
+<P>
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+
+</P>
+<P>
+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.
+
+</P>
+<P>
+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.
+
+</P>
+<P>
+Copyright (C) 1988-1999 Free Software Foundation, Inc.
+
+</P>
+
+
+
+<H1><A NAME="SEC1" HREF="rluserman.html#TOC1">Command Line Editing</A></H1>
+
+<P>
+This chapter describes the basic features of the GNU
+command line editing interface.
+
+</P>
+
+<UL>
+<LI><A HREF="rluserman.html#SEC2">Introduction and Notation</A>: Notation used in this text.
+<LI><A HREF="rluserman.html#SEC3">Readline Interaction</A>: The minimum set of commands for editing a line.
+<LI><A HREF="rluserman.html#SEC9">Readline Init File</A>: Customizing Readline from a user's view.
+<LI><A HREF="rluserman.html#SEC13">Bindable Readline Commands</A>: A description of most of the Readline commands
+ available for binding
+<LI><A HREF="rluserman.html#SEC22">Readline vi Mode</A>: A short description of how to make Readline
+ behave like the vi editor.
+</UL>
+
+
+
+<H2><A NAME="SEC2" HREF="rluserman.html#TOC2">Introduction to Line Editing</A></H2>
+
+<P>
+The following paragraphs describe the notation used to represent
+keystrokes.
+
+</P>
+<P>
+The text <KBD>C-k</KBD> is read as `Control-K' and describes the character
+produced when the <KBD>k</KBD> key is pressed while the Control key
+is depressed.
+
+</P>
+<P>
+The text <KBD>M-k</KBD> is read as `Meta-K' and describes the character
+produced when the Meta key (if you have one) is depressed, and the <KBD>k</KBD>
+key is pressed.
+The Meta key is labeled <KBD>ALT</KBD> on many keyboards.
+On keyboards with two keys labeled <KBD>ALT</KBD> (usually to either side of
+the space bar), the <KBD>ALT</KBD> on the left side is generally set to
+work as a Meta key.
+The <KBD>ALT</KBD> 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.
+
+</P>
+<P>
+If you do not have a Meta or <KBD>ALT</KBD> key, or another key working as
+a Meta key, the identical keystroke can be generated by typing <KBD>ESC</KBD>
+<I>first</I>, and then typing <KBD>k</KBD>.
+Either process is known as <EM>metafying</EM> the <KBD>k</KBD> key.
+
+</P>
+<P>
+The text <KBD>M-C-k</KBD> is read as `Meta-Control-k' and describes the
+character produced by <EM>metafying</EM> <KBD>C-k</KBD>.
+
+</P>
+<P>
+In addition, several keys have their own names. Specifically,
+<KBD>DEL</KBD>, <KBD>ESC</KBD>, <KBD>LFD</KBD>, <KBD>SPC</KBD>, <KBD>RET</KBD>, and <KBD>TAB</KBD> all
+stand for themselves when seen in this text, or in an init file
+(see section <A HREF="rluserman.html#SEC9">Readline Init File</A>).
+If your keyboard lacks a <KBD>LFD</KBD> key, typing <KBD>C-j</KBD> will
+produce the desired character.
+The <KBD>RET</KBD> key may be labeled <KBD>Return</KBD> or <KBD>Enter</KBD> on
+some keyboards.
+
+</P>
+
+
+<H2><A NAME="SEC3" HREF="rluserman.html#TOC3">Readline Interaction</A></H2>
+<P>
+<A NAME="IDX1"></A>
+
+</P>
+<P>
+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 <KBD>RETURN</KBD>. You do not have to be at the
+end of the line to press <KBD>RETURN</KBD>; the entire line is accepted
+regardless of the location of the cursor within the line.
+
+</P>
+
+<UL>
+<LI><A HREF="rluserman.html#SEC4">Readline Bare Essentials</A>: The least you need to know about Readline.
+<LI><A HREF="rluserman.html#SEC5">Readline Movement Commands</A>: Moving about the input line.
+<LI><A HREF="rluserman.html#SEC6">Readline Killing Commands</A>: How to delete text, and how to get it back!
+<LI><A HREF="rluserman.html#SEC7">Readline Arguments</A>: Giving numeric arguments to commands.
+<LI><A HREF="rluserman.html#SEC8">Searching</A>: Searching through previous lines.
+</UL>
+
+
+
+<H3><A NAME="SEC4" HREF="rluserman.html#TOC4">Readline Bare Essentials</A></H3>
+<P>
+<A NAME="IDX2"></A>
+<A NAME="IDX3"></A>
+<A NAME="IDX4"></A>
+
+</P>
+<P>
+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.
+
+</P>
+<P>
+Sometimes you may mistype a character, and
+not notice the error until you have typed several other characters. In
+that case, you can type <KBD>C-b</KBD> to move the cursor to the left, and then
+correct your mistake. Afterwards, you can move the cursor to the right
+with <KBD>C-f</KBD>.
+
+</P>
+<P>
+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.
+
+</P>
+<DL COMPACT>
+
+<DT><KBD>C-b</KBD>
+<DD>
+Move back one character.
+<DT><KBD>C-f</KBD>
+<DD>
+Move forward one character.
+<DT><KBD>DEL</KBD> or <KBD>Backspace</KBD>
+<DD>
+Delete the character to the left of the cursor.
+<DT><KBD>C-d</KBD>
+<DD>
+Delete the character underneath the cursor.
+<DT>Printing characters
+<DD>
+Insert the character into the line at the cursor.
+<DT><KBD>C-_</KBD> or <KBD>C-x C-u</KBD>
+<DD>
+Undo the last editing command. You can undo all the way back to an
+empty line.
+</DL>
+
+<P>
+(Depending on your configuration, the <KBD>Backspace</KBD> key be set to
+delete the character to the left of the cursor and the <KBD>DEL</KBD> key set
+to delete the character underneath the cursor, like <KBD>C-d</KBD>, rather
+than the character to the left of the cursor.)
+
+</P>
+
+
+<H3><A NAME="SEC5" HREF="rluserman.html#TOC5">Readline Movement Commands</A></H3>
+
+<P>
+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 <KBD>C-b</KBD>, <KBD>C-f</KBD>,
+<KBD>C-d</KBD>, and <KBD>DEL</KBD>. Here are some commands for moving more rapidly
+about the line.
+
+</P>
+<DL COMPACT>
+
+<DT><KBD>C-a</KBD>
+<DD>
+Move to the start of the line.
+<DT><KBD>C-e</KBD>
+<DD>
+Move to the end of the line.
+<DT><KBD>M-f</KBD>
+<DD>
+Move forward a word, where a word is composed of letters and digits.
+<DT><KBD>M-b</KBD>
+<DD>
+Move backward a word.
+<DT><KBD>C-l</KBD>
+<DD>
+Clear the screen, reprinting the current line at the top.
+</DL>
+
+<P>
+Notice how <KBD>C-f</KBD> moves forward a character, while <KBD>M-f</KBD> moves
+forward a word. It is a loose convention that control keystrokes
+operate on characters while meta keystrokes operate on words.
+
+</P>
+
+
+<H3><A NAME="SEC6" HREF="rluserman.html#TOC6">Readline Killing Commands</A></H3>
+
+<P>
+<A NAME="IDX5"></A>
+<A NAME="IDX6"></A>
+
+</P>
+<P>
+<EM>Killing</EM> text means to delete the text from the line, but to save
+it away for later use, usually by <EM>yanking</EM> (re-inserting)
+it back into the line.
+(`Cut' and `paste' are more recent jargon for `kill' and `yank'.)
+
+</P>
+<P>
+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.
+
+</P>
+<P>
+When you use a kill command, the text is saved in a <EM>kill-ring</EM>.
+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.
+<A NAME="IDX7"></A>
+
+</P>
+<P>
+Here is the list of commands for killing text.
+
+</P>
+<DL COMPACT>
+
+<DT><KBD>C-k</KBD>
+<DD>
+Kill the text from the current cursor position to the end of the line.
+
+<DT><KBD>M-d</KBD>
+<DD>
+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 <KBD>M-f</KBD>.
+
+<DT><KBD>M-DEL</KBD>
+<DD>
+Kill from the cursor the start of the previous word, or, if between
+words, to the start of the previous word.
+Word boundaries are the same as those used by <KBD>M-b</KBD>.
+
+<DT><KBD>C-w</KBD>
+<DD>
+Kill from the cursor to the previous whitespace. This is different than
+<KBD>M-DEL</KBD> because the word boundaries differ.
+
+</DL>
+
+<P>
+Here is how to <EM>yank</EM> the text back into the line. Yanking
+means to copy the most-recently-killed text from the kill buffer.
+
+</P>
+<DL COMPACT>
+
+<DT><KBD>C-y</KBD>
+<DD>
+Yank the most recently killed text back into the buffer at the cursor.
+
+<DT><KBD>M-y</KBD>
+<DD>
+Rotate the kill-ring, and yank the new top. You can only do this if
+the prior command is <KBD>C-y</KBD> or <KBD>M-y</KBD>.
+</DL>
+
+
+
+<H3><A NAME="SEC7" HREF="rluserman.html#TOC7">Readline Arguments</A></H3>
+
+<P>
+You can pass numeric arguments to Readline commands. Sometimes the
+argument acts as a repeat count, other times it is the <I>sign</I> 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 <SAMP>`M-- C-k'</SAMP>.
+
+</P>
+<P>
+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 (<SAMP>`-'</SAMP>), 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 <KBD>C-d</KBD> command an argument of 10, you could type <SAMP>`M-1 0 C-d'</SAMP>.
+
+</P>
+
+
+<H3><A NAME="SEC8" HREF="rluserman.html#TOC8">Searching for Commands in the History</A></H3>
+
+<P>
+Readline provides commands for searching through the command history
+for lines containing a specified string.
+There are two search modes: <VAR>incremental</VAR> and <VAR>non-incremental</VAR>.
+
+</P>
+<P>
+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
+<KBD>C-r</KBD>. Typing <KBD>C-s</KBD> searches forward through the history.
+The characters present in the value of the <CODE>isearch-terminators</CODE> variable
+are used to terminate an incremental search.
+If that variable has not been assigned a value, the <KBD>ESC</KBD> and
+<KBD>C-J</KBD> characters will terminate an incremental search.
+<KBD>C-g</KBD> 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.
+
+</P>
+<P>
+To find other matching entries in the history list, type <KBD>C-r</KBD> or
+<KBD>C-s</KBD> 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 <KBD>RET</KBD> will terminate the search and accept
+the line, thereby executing the command from the history list.
+
+</P>
+<P>
+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.
+
+</P>
+
+
+<H2><A NAME="SEC9" HREF="rluserman.html#TOC9">Readline Init File</A></H2>
+<P>
+<A NAME="IDX8"></A>
+
+</P>
+<P>
+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 <EM>inputrc</EM> file, conventionally in his home directory.
+The name of this
+file is taken from the value of the environment variable <CODE>INPUTRC</CODE>. If
+that variable is unset, the default is <TT>`~/.inputrc'</TT>.
+
+</P>
+<P>
+When a program which uses the Readline library starts up, the
+init file is read, and the key bindings are set.
+
+</P>
+<P>
+In addition, the <CODE>C-x C-r</CODE> command re-reads this init file, thus
+incorporating any changes that you might have made to it.
+
+</P>
+
+<UL>
+<LI><A HREF="rluserman.html#SEC10">Readline Init File Syntax</A>: Syntax for the commands in the inputrc file.
+
+<LI><A HREF="rluserman.html#SEC11">Conditional Init Constructs</A>: Conditional key bindings in the inputrc file.
+
+<LI><A HREF="rluserman.html#SEC12">Sample Init File</A>: An example inputrc file.
+</UL>
+
+
+
+<H3><A NAME="SEC10" HREF="rluserman.html#TOC10">Readline Init File Syntax</A></H3>
+
+<P>
+There are only a few basic constructs allowed in the
+Readline init file. Blank lines are ignored.
+Lines beginning with a <SAMP>`#'</SAMP> are comments.
+Lines beginning with a <SAMP>`$'</SAMP> indicate conditional
+constructs (see section <A HREF="rluserman.html#SEC11">Conditional Init Constructs</A>). Other lines
+denote variable settings and key bindings.
+
+</P>
+<DL COMPACT>
+
+<DT>Variable Settings
+<DD>
+You can modify the run-time behavior of Readline by
+altering the values of variables in Readline
+using the <CODE>set</CODE> command within the init file. Here is how to
+change from the default Emacs-like key binding to use
+<CODE>vi</CODE> line editing commands:
+
+
+<PRE>
+set editing-mode vi
+</PRE>
+
+A great deal of run-time behavior is changeable with the following
+variables.
+
+<DL COMPACT>
+
+<DT><CODE>bell-style</CODE>
+<DD>
+<A NAME="IDX9"></A>
+Controls what happens when Readline wants to ring the terminal bell.
+If set to <SAMP>`none'</SAMP>, Readline never rings the bell. If set to
+<SAMP>`visible'</SAMP>, Readline uses a visible bell if one is available.
+If set to <SAMP>`audible'</SAMP> (the default), Readline attempts to ring
+the terminal's bell.
+
+<DT><CODE>comment-begin</CODE>
+<DD>
+<A NAME="IDX10"></A>
+The string to insert at the beginning of the line when the
+<CODE>insert-comment</CODE> command is executed. The default value
+is <CODE>"#"</CODE>.
+
+<DT><CODE>completion-ignore-case</CODE>
+<DD>
+If set to <SAMP>`on'</SAMP>, Readline performs filename matching and completion
+in a case-insensitive fashion.
+The default value is <SAMP>`off'</SAMP>.
+
+<DT><CODE>completion-query-items</CODE>
+<DD>
+<A NAME="IDX11"></A>
+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. The default limit is
+<CODE>100</CODE>.
+
+<DT><CODE>convert-meta</CODE>
+<DD>
+<A NAME="IDX12"></A>
+If set to <SAMP>`on'</SAMP>, Readline will convert characters with the
+eighth bit set to an ASCII key sequence by stripping the eighth
+bit and prefixing an <KBD>ESC</KBD> character, converting them to a
+meta-prefixed key sequence. The default value is <SAMP>`on'</SAMP>.
+
+<DT><CODE>disable-completion</CODE>
+<DD>
+<A NAME="IDX13"></A>
+If set to <SAMP>`On'</SAMP>, Readline will inhibit word completion.
+Completion characters will be inserted into the line as if they had
+been mapped to <CODE>self-insert</CODE>. The default is <SAMP>`off'</SAMP>.
+
+<DT><CODE>editing-mode</CODE>
+<DD>
+<A NAME="IDX14"></A>
+The <CODE>editing-mode</CODE> 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 <SAMP>`emacs'</SAMP> or <SAMP>`vi'</SAMP>.
+
+<DT><CODE>enable-keypad</CODE>
+<DD>
+<A NAME="IDX15"></A>
+When set to <SAMP>`on'</SAMP>, Readline will try to enable the application
+keypad when it is called. Some systems need this to enable the
+arrow keys. The default is <SAMP>`off'</SAMP>.
+
+<DT><CODE>expand-tilde</CODE>
+<DD>
+<A NAME="IDX16"></A>
+If set to <SAMP>`on'</SAMP>, tilde expansion is performed when Readline
+attempts word completion. The default is <SAMP>`off'</SAMP>.
+
+<DT><CODE>horizontal-scroll-mode</CODE>
+<DD>
+<A NAME="IDX17"></A>
+This variable can be set to either <SAMP>`on'</SAMP> or <SAMP>`off'</SAMP>. Setting it
+to <SAMP>`on'</SAMP> 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 <SAMP>`off'</SAMP>.
+
+<DT><CODE>input-meta</CODE>
+<DD>
+<A NAME="IDX18"></A>
+<A NAME="IDX19"></A>
+If set to <SAMP>`on'</SAMP>, Readline will enable eight-bit input (it
+will not strip the eighth bit from the characters it reads),
+regardless of what the terminal claims it can support. The
+default value is <SAMP>`off'</SAMP>. The name <CODE>meta-flag</CODE> is a
+synonym for this variable.
+
+<DT><CODE>isearch-terminators</CODE>
+<DD>
+<A NAME="IDX20"></A>
+The string of characters that should terminate an incremental search without
+subsequently executing the character as a command (see section <A HREF="rluserman.html#SEC8">Searching for Commands in the History</A>).
+If this variable has not been given a value, the characters <KBD>ESC</KBD> and
+<KBD>C-J</KBD> will terminate an incremental search.
+
+<DT><CODE>keymap</CODE>
+<DD>
+<A NAME="IDX21"></A>
+Sets Readline's idea of the current keymap for key binding commands.
+Acceptable <CODE>keymap</CODE> names are
+<CODE>emacs</CODE>,
+<CODE>emacs-standard</CODE>,
+<CODE>emacs-meta</CODE>,
+<CODE>emacs-ctlx</CODE>,
+<CODE>vi</CODE>,
+<CODE>vi-command</CODE>, and
+<CODE>vi-insert</CODE>.
+<CODE>vi</CODE> is equivalent to <CODE>vi-command</CODE>; <CODE>emacs</CODE> is
+equivalent to <CODE>emacs-standard</CODE>. The default value is <CODE>emacs</CODE>.
+The value of the <CODE>editing-mode</CODE> variable also affects the
+default keymap.
+
+<DT><CODE>mark-directories</CODE>
+<DD>
+If set to <SAMP>`on'</SAMP>, completed directory names have a slash
+appended. The default is <SAMP>`on'</SAMP>.
+
+<DT><CODE>mark-modified-lines</CODE>
+<DD>
+<A NAME="IDX22"></A>
+This variable, when set to <SAMP>`on'</SAMP>, causes Readline to display an
+asterisk (<SAMP>`*'</SAMP>) at the start of history lines which have been modified.
+This variable is <SAMP>`off'</SAMP> by default.
+
+<DT><CODE>output-meta</CODE>
+<DD>
+<A NAME="IDX23"></A>
+If set to <SAMP>`on'</SAMP>, Readline will display characters with the
+eighth bit set directly rather than as a meta-prefixed escape
+sequence. The default is <SAMP>`off'</SAMP>.
+
+<DT><CODE>print-completions-horizontally</CODE>
+<DD>
+If set to <SAMP>`on'</SAMP>, Readline will display completions with matches
+sorted horizontally in alphabetical order, rather than down the screen.
+The default is <SAMP>`off'</SAMP>.
+
+<DT><CODE>show-all-if-ambiguous</CODE>
+<DD>
+<A NAME="IDX24"></A>
+This alters the default behavior of the completion functions. If
+set to <SAMP>`on'</SAMP>,
+words which have more than one possible completion cause the
+matches to be listed immediately instead of ringing the bell.
+The default value is <SAMP>`off'</SAMP>.
+
+<DT><CODE>visible-stats</CODE>
+<DD>
+<A NAME="IDX25"></A>
+If set to <SAMP>`on'</SAMP>, a character denoting a file's type
+is appended to the filename when listing possible
+completions. The default is <SAMP>`off'</SAMP>.
+
+</DL>
+
+<DT>Key Bindings
+<DD>
+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 the name of the key
+you wish to bind the command to, a colon, and then the name of the
+command on a line in the init file. The name of the key
+can be expressed in different ways, depending on which is most
+comfortable for you.
+
+<DL COMPACT>
+
+<DT><VAR>keyname</VAR>: <VAR>function-name</VAR> or <VAR>macro</VAR>
+<DD>
+<VAR>keyname</VAR> is the name of a key spelled out in English. For example:
+
+<PRE>
+Control-u: universal-argument
+Meta-Rubout: backward-kill-word
+Control-o: "> output"
+</PRE>
+
+In the above example, <KBD>C-u</KBD> is bound to the function
+<CODE>universal-argument</CODE>, and <KBD>C-o</KBD> is bound to run the macro
+expressed on the right hand side (that is, to insert the text
+<SAMP>`> output'</SAMP> into the line).
+
+<DT>"<VAR>keyseq</VAR>": <VAR>function-name</VAR> or <VAR>macro</VAR>
+<DD>
+<VAR>keyseq</VAR> differs from <VAR>keyname</VAR> 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.
+
+
+<PRE>
+"\C-u": universal-argument
+"\C-x\C-r": re-read-init-file
+"\e[11~": "Function Key 1"
+</PRE>
+
+In the above example, <KBD>C-u</KBD> is bound to the function
+<CODE>universal-argument</CODE> (just as it was in the first example),
+<SAMP>`<KBD>C-x</KBD> <KBD>C-r</KBD>'</SAMP> is bound to the function <CODE>re-read-init-file</CODE>,
+and <SAMP>`<KBD>ESC</KBD> <KBD>[</KBD> <KBD>1</KBD> <KBD>1</KBD> <KBD>~</KBD>'</SAMP> is bound to insert
+the text <SAMP>`Function Key 1'</SAMP>.
+
+</DL>
+
+The following GNU Emacs style escape sequences are available when
+specifying key sequences:
+
+<DL COMPACT>
+
+<DT><CODE><KBD>\C-</KBD></CODE>
+<DD>
+control prefix
+<DT><CODE><KBD>\M-</KBD></CODE>
+<DD>
+meta prefix
+<DT><CODE><KBD>\e</KBD></CODE>
+<DD>
+an escape character
+<DT><CODE><KBD>\\</KBD></CODE>
+<DD>
+backslash
+<DT><CODE><KBD>\"</KBD></CODE>
+<DD>
+<KBD>"</KBD>, a double quotation mark
+<DT><CODE><KBD>\'</KBD></CODE>
+<DD>
+<KBD>'</KBD>, a single quote or apostrophe
+</DL>
+
+In addition to the GNU Emacs style escape sequences, a second
+set of backslash escapes is available:
+
+<DL COMPACT>
+
+<DT><CODE>\a</CODE>
+<DD>
+alert (bell)
+<DT><CODE>\b</CODE>
+<DD>
+backspace
+<DT><CODE>\d</CODE>
+<DD>
+delete
+<DT><CODE>\f</CODE>
+<DD>
+form feed
+<DT><CODE>\n</CODE>
+<DD>
+newline
+<DT><CODE>\r</CODE>
+<DD>
+carriage return
+<DT><CODE>\t</CODE>
+<DD>
+horizontal tab
+<DT><CODE>\v</CODE>
+<DD>
+vertical tab
+<DT><CODE>\<VAR>nnn</VAR></CODE>
+<DD>
+the character whose <CODE>ASCII</CODE> code is the octal value <VAR>nnn</VAR>
+(one to three digits)
+<DT><CODE>\x<VAR>nnn</VAR></CODE>
+<DD>
+the character whose <CODE>ASCII</CODE> code is the hexadecimal value <VAR>nnn</VAR>
+(one to three digits)
+</DL>
+
+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 <SAMP>`"'</SAMP> and <SAMP>`''</SAMP>.
+For example, the following binding will make <SAMP>`C-x \'</SAMP>
+insert a single <SAMP>`\'</SAMP> into the line:
+
+<PRE>
+"\C-x\\": "\\"
+</PRE>
+
+</DL>
+
+
+
+<H3><A NAME="SEC11" HREF="rluserman.html#TOC11">Conditional Init Constructs</A></H3>
+
+<P>
+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.
+
+</P>
+<DL COMPACT>
+
+<DT><CODE>$if</CODE>
+<DD>
+The <CODE>$if</CODE> construct allows bindings to be made based on the
+editing mode, the terminal being used, or the application using
+Readline. The text of the test extends to the end of the line;
+no characters are required to isolate it.
+
+<DL COMPACT>
+
+<DT><CODE>mode</CODE>
+<DD>
+The <CODE>mode=</CODE> form of the <CODE>$if</CODE> directive is used to test
+whether Readline is in <CODE>emacs</CODE> or <CODE>vi</CODE> mode.
+This may be used in conjunction
+with the <SAMP>`set keymap'</SAMP> command, for instance, to set bindings in
+the <CODE>emacs-standard</CODE> and <CODE>emacs-ctlx</CODE> keymaps only if
+Readline is starting out in <CODE>emacs</CODE> mode.
+
+<DT><CODE>term</CODE>
+<DD>
+The <CODE>term=</CODE> 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
+<SAMP>`='</SAMP> is tested against both the full name of the terminal and
+the portion of the terminal name before the first <SAMP>`-'</SAMP>. This
+allows <CODE>sun</CODE> to match both <CODE>sun</CODE> and <CODE>sun-cmd</CODE>,
+for instance.
+
+<DT><CODE>application</CODE>
+<DD>
+The <VAR>application</VAR> construct is used to include
+application-specific settings. Each program using the Readline
+library sets the <VAR>application name</VAR>, and you can test for it.
+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:
+
+<PRE>
+$if Bash
+# Quote the current or previous word
+"\C-xq": "\eb\"\ef\""
+$endif
+</PRE>
+
+</DL>
+
+<DT><CODE>$endif</CODE>
+<DD>
+This command, as seen in the previous example, terminates an
+<CODE>$if</CODE> command.
+
+<DT><CODE>$else</CODE>
+<DD>
+Commands in this branch of the <CODE>$if</CODE> directive are executed if
+the test fails.
+
+<DT><CODE>$include</CODE>
+<DD>
+This directive takes a single filename as an argument and reads commands
+and bindings from that file.
+
+<PRE>
+$include /etc/inputrc
+</PRE>
+
+</DL>
+
+
+
+<H3><A NAME="SEC12" HREF="rluserman.html#TOC12">Sample Init File</A></H3>
+
+<P>
+Here is an example of an inputrc file. This illustrates key
+binding, variable assignment, and conditional syntax.
+
+</P>
+
+<PRE>
+# 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
+</PRE>
+
+
+
+<H2><A NAME="SEC13" HREF="rluserman.html#TOC13">Bindable Readline Commands</A></H2>
+
+
+<UL>
+<LI><A HREF="rluserman.html#SEC14">Commands For Moving</A>: Moving about the line.
+<LI><A HREF="rluserman.html#SEC15">Commands For History</A>: Getting at previous lines.
+<LI><A HREF="rluserman.html#SEC16">Commands For Text</A>: Commands for changing text.
+<LI><A HREF="rluserman.html#SEC17">Commands For Killing</A>: Commands for killing and yanking.
+<LI><A HREF="rluserman.html#SEC18">Numeric Arguments</A>: Specifying numeric arguments, repeat counts.
+<LI><A HREF="rluserman.html#SEC19">Commands For Completion</A>: Getting Readline to do the typing for you.
+<LI><A HREF="rluserman.html#SEC20">Keyboard Macros</A>: Saving and re-executing typed characters
+<LI><A HREF="rluserman.html#SEC21">Miscellaneous Commands</A>: Other miscellaneous commands.
+</UL>
+
+<P>
+This section describes Readline commands that may be bound to key
+sequences.
+
+</P>
+<P>
+Command names without an accompanying key sequence are unbound by default.
+In the following descriptions, <VAR>point</VAR> refers to the current cursor
+position, and <VAR>mark</VAR> refers to a cursor position saved by the
+<CODE>set-mark</CODE> command.
+The text between the point and mark is referred to as the <VAR>region</VAR>.
+
+</P>
+
+
+<H3><A NAME="SEC14" HREF="rluserman.html#TOC14">Commands For Moving</A></H3>
+<DL COMPACT>
+
+<DT><CODE>beginning-of-line (C-a)</CODE>
+<DD>
+<A NAME="IDX26"></A>
+Move to the start of the current line.
+
+<DT><CODE>end-of-line (C-e)</CODE>
+<DD>
+<A NAME="IDX27"></A>
+Move to the end of the line.
+
+<DT><CODE>forward-char (C-f)</CODE>
+<DD>
+<A NAME="IDX28"></A>
+Move forward a character.
+
+<DT><CODE>backward-char (C-b)</CODE>
+<DD>
+<A NAME="IDX29"></A>
+Move back a character.
+
+<DT><CODE>forward-word (M-f)</CODE>
+<DD>
+<A NAME="IDX30"></A>
+Move forward to the end of the next word. Words are composed of
+letters and digits.
+
+<DT><CODE>backward-word (M-b)</CODE>
+<DD>
+<A NAME="IDX31"></A>
+Move back to the start of the current or previous word. Words are
+composed of letters and digits.
+
+<DT><CODE>clear-screen (C-l)</CODE>
+<DD>
+<A NAME="IDX32"></A>
+Clear the screen and redraw the current line,
+leaving the current line at the top of the screen.
+
+<DT><CODE>redraw-current-line ()</CODE>
+<DD>
+<A NAME="IDX33"></A>
+Refresh the current line. By default, this is unbound.
+
+</DL>
+
+
+
+<H3><A NAME="SEC15" HREF="rluserman.html#TOC15">Commands For Manipulating The History</A></H3>
+
+<DL COMPACT>
+
+<DT><CODE>accept-line (Newline, Return)</CODE>
+<DD>
+<A NAME="IDX34"></A>
+Accept the line regardless of where the cursor is. If this line is
+non-empty, add it to the history list. If this line was a history
+line, then restore the history line to its original state.
+
+<DT><CODE>previous-history (C-p)</CODE>
+<DD>
+<A NAME="IDX35"></A>
+Move `up' through the history list.
+
+<DT><CODE>next-history (C-n)</CODE>
+<DD>
+<A NAME="IDX36"></A>
+Move `down' through the history list.
+
+<DT><CODE>beginning-of-history (M-<)</CODE>
+<DD>
+<A NAME="IDX37"></A>
+Move to the first line in the history.
+
+<DT><CODE>end-of-history (M->)</CODE>
+<DD>
+<A NAME="IDX38"></A>
+Move to the end of the input history, i.e., the line currently
+being entered.
+
+<DT><CODE>reverse-search-history (C-r)</CODE>
+<DD>
+<A NAME="IDX39"></A>
+Search backward starting at the current line and moving `up' through
+the history as necessary. This is an incremental search.
+
+<DT><CODE>forward-search-history (C-s)</CODE>
+<DD>
+<A NAME="IDX40"></A>
+Search forward starting at the current line and moving `down' through
+the the history as necessary. This is an incremental search.
+
+<DT><CODE>non-incremental-reverse-search-history (M-p)</CODE>
+<DD>
+<A NAME="IDX41"></A>
+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.
+
+<DT><CODE>non-incremental-forward-search-history (M-n)</CODE>
+<DD>
+<A NAME="IDX42"></A>
+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.
+
+<DT><CODE>history-search-forward ()</CODE>
+<DD>
+<A NAME="IDX43"></A>
+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.
+
+<DT><CODE>history-search-backward ()</CODE>
+<DD>
+<A NAME="IDX44"></A>
+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.
+
+<DT><CODE>yank-nth-arg (M-C-y)</CODE>
+<DD>
+<A NAME="IDX45"></A>
+Insert the first argument to the previous command (usually
+the second word on the previous line). With an argument <VAR>n</VAR>,
+insert the <VAR>n</VAR>th word from the previous command (the words
+in the previous command begin with word 0). A negative argument
+inserts the <VAR>n</VAR>th word from the end of the previous command.
+
+<DT><CODE>yank-last-arg (M-., M-_)</CODE>
+<DD>
+<A NAME="IDX46"></A>
+Insert last argument to the previous command (the last word of the
+previous history entry). With an
+argument, behave exactly like <CODE>yank-nth-arg</CODE>.
+Successive calls to <CODE>yank-last-arg</CODE> move back through the history
+list, inserting the last argument of each line in turn.
+
+</DL>
+
+
+
+<H3><A NAME="SEC16" HREF="rluserman.html#TOC16">Commands For Changing Text</A></H3>
+
+<DL COMPACT>
+
+<DT><CODE>delete-char (C-d)</CODE>
+<DD>
+<A NAME="IDX47"></A>
+Delete the character under the cursor. If the cursor is at the
+beginning of the line, there are no characters in the line, and
+the last character typed was not bound to <CODE>delete-char</CODE>, then
+return <CODE>EOF</CODE>.
+
+<DT><CODE>backward-delete-char (Rubout)</CODE>
+<DD>
+<A NAME="IDX48"></A>
+Delete the character behind the cursor. A numeric argument means
+to kill the characters instead of deleting them.
+
+<DT><CODE>forward-backward-delete-char ()</CODE>
+<DD>
+<A NAME="IDX49"></A>
+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.
+
+<DT><CODE>quoted-insert (C-q, C-v)</CODE>
+<DD>
+<A NAME="IDX50"></A>
+Add the next character typed to the line verbatim. This is
+how to insert key sequences like <KBD>C-q</KBD>, for example.
+
+<DT><CODE>tab-insert (M-TAB)</CODE>
+<DD>
+<A NAME="IDX51"></A>
+Insert a tab character.
+
+<DT><CODE>self-insert (a, b, A, 1, !, ...)</CODE>
+<DD>
+<A NAME="IDX52"></A>
+Insert yourself.
+
+<DT><CODE>transpose-chars (C-t)</CODE>
+<DD>
+<A NAME="IDX53"></A>
+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.
+
+<DT><CODE>transpose-words (M-t)</CODE>
+<DD>
+<A NAME="IDX54"></A>
+Drag the word before point past the word after point,
+moving point past that word as well.
+
+<DT><CODE>upcase-word (M-u)</CODE>
+<DD>
+<A NAME="IDX55"></A>
+Uppercase the current (or following) word. With a negative argument,
+uppercase the previous word, but do not move the cursor.
+
+<DT><CODE>downcase-word (M-l)</CODE>
+<DD>
+<A NAME="IDX56"></A>
+Lowercase the current (or following) word. With a negative argument,
+lowercase the previous word, but do not move the cursor.
+
+<DT><CODE>capitalize-word (M-c)</CODE>
+<DD>
+<A NAME="IDX57"></A>
+Capitalize the current (or following) word. With a negative argument,
+capitalize the previous word, but do not move the cursor.
+
+</DL>
+
+
+
+<H3><A NAME="SEC17" HREF="rluserman.html#TOC17">Killing And Yanking</A></H3>
+
+<DL COMPACT>
+
+<DT><CODE>kill-line (C-k)</CODE>
+<DD>
+<A NAME="IDX58"></A>
+Kill the text from point to the end of the line.
+
+<DT><CODE>backward-kill-line (C-x Rubout)</CODE>
+<DD>
+<A NAME="IDX59"></A>
+Kill backward to the beginning of the line.
+
+<DT><CODE>unix-line-discard (C-u)</CODE>
+<DD>
+<A NAME="IDX60"></A>
+Kill backward from the cursor to the beginning of the current line.
+
+<DT><CODE>kill-whole-line ()</CODE>
+<DD>
+<A NAME="IDX61"></A>
+Kill all characters on the current line, no matter point is.
+By default, this is unbound.
+
+<DT><CODE>kill-word (M-d)</CODE>
+<DD>
+<A NAME="IDX62"></A>
+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 <CODE>forward-word</CODE>.
+
+<DT><CODE>backward-kill-word (M-DEL)</CODE>
+<DD>
+<A NAME="IDX63"></A>
+Kill the word behind point.
+Word boundaries are the same as <CODE>backward-word</CODE>.
+
+<DT><CODE>unix-word-rubout (C-w)</CODE>
+<DD>
+<A NAME="IDX64"></A>
+Kill the word behind point, using white space as a word boundary.
+The killed text is saved on the kill-ring.
+
+<DT><CODE>delete-horizontal-space ()</CODE>
+<DD>
+<A NAME="IDX65"></A>
+Delete all spaces and tabs around point. By default, this is unbound.
+
+<DT><CODE>kill-region ()</CODE>
+<DD>
+<A NAME="IDX66"></A>
+Kill the text in the current region.
+By default, this command is unbound.
+
+<DT><CODE>copy-region-as-kill ()</CODE>
+<DD>
+<A NAME="IDX67"></A>
+Copy the text in the region to the kill buffer, so it can be yanked
+right away. By default, this command is unbound.
+
+<DT><CODE>copy-backward-word ()</CODE>
+<DD>
+<A NAME="IDX68"></A>
+Copy the word before point to the kill buffer.
+The word boundaries are the same as <CODE>backward-word</CODE>.
+By default, this command is unbound.
+
+<DT><CODE>copy-forward-word ()</CODE>
+<DD>
+<A NAME="IDX69"></A>
+Copy the word following point to the kill buffer.
+The word boundaries are the same as <CODE>forward-word</CODE>.
+By default, this command is unbound.
+
+<DT><CODE>yank (C-y)</CODE>
+<DD>
+<A NAME="IDX70"></A>
+Yank the top of the kill ring into the buffer at the current
+cursor position.
+
+<DT><CODE>yank-pop (M-y)</CODE>
+<DD>
+<A NAME="IDX71"></A>
+Rotate the kill-ring, and yank the new top. You can only do this if
+the prior command is yank or yank-pop.
+</DL>
+
+
+
+<H3><A NAME="SEC18" HREF="rluserman.html#TOC18">Specifying Numeric Arguments</A></H3>
+<DL COMPACT>
+
+<DT><CODE>digit-argument (M-0, M-1, ... M--)</CODE>
+<DD>
+<A NAME="IDX72"></A>
+Add this digit to the argument already accumulating, or start a new
+argument. <KBD>M--</KBD> starts a negative argument.
+
+<DT><CODE>universal-argument ()</CODE>
+<DD>
+<A NAME="IDX73"></A>
+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 <CODE>universal-argument</CODE>
+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.
+</DL>
+
+
+
+<H3><A NAME="SEC19" HREF="rluserman.html#TOC19">Letting Readline Type For You</A></H3>
+
+<DL COMPACT>
+
+<DT><CODE>complete (TAB)</CODE>
+<DD>
+<A NAME="IDX74"></A>
+Attempt to do completion on the text before the cursor. This is
+application-specific. Generally, if you are typing a filename
+argument, you can do filename completion; if you are typing a command,
+you can do command completion; if you are typing in a symbol to GDB, you
+can do symbol name completion; if you are typing in a variable to Bash,
+you can do variable name completion, and so on.
+
+<DT><CODE>possible-completions (M-?)</CODE>
+<DD>
+<A NAME="IDX75"></A>
+List the possible completions of the text before the cursor.
+
+<DT><CODE>insert-completions (M-*)</CODE>
+<DD>
+<A NAME="IDX76"></A>
+Insert all completions of the text before point that would have
+been generated by <CODE>possible-completions</CODE>.
+
+<DT><CODE>menu-complete ()</CODE>
+<DD>
+<A NAME="IDX77"></A>
+Similar to <CODE>complete</CODE>, but replaces the word to be completed
+with a single match from the list of possible completions.
+Repeated execution of <CODE>menu-complete</CODE> steps through the list
+of possible completions, inserting each match in turn.
+At the end of the list of completions, the bell is rung and the
+original text is restored.
+An argument of <VAR>n</VAR> moves <VAR>n</VAR> 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 <CODE>TAB</CODE>, but is unbound
+by default.
+
+<DT><CODE>delete-char-or-list ()</CODE>
+<DD>
+<A NAME="IDX78"></A>
+Deletes the character under the cursor if not at the beginning or
+end of the line (like <CODE>delete-char</CODE>).
+If at the end of the line, behaves identically to
+<CODE>possible-completions</CODE>.
+This command is unbound by default.
+
+</DL>
+
+
+
+<H3><A NAME="SEC20" HREF="rluserman.html#TOC20">Keyboard Macros</A></H3>
+<DL COMPACT>
+
+<DT><CODE>start-kbd-macro (C-x ()</CODE>
+<DD>
+<A NAME="IDX79"></A>
+Begin saving the characters typed into the current keyboard macro.
+
+<DT><CODE>end-kbd-macro (C-x ))</CODE>
+<DD>
+<A NAME="IDX80"></A>
+Stop saving the characters typed into the current keyboard macro
+and save the definition.
+
+<DT><CODE>call-last-kbd-macro (C-x e)</CODE>
+<DD>
+<A NAME="IDX81"></A>
+Re-execute the last keyboard macro defined, by making the characters
+in the macro appear as if typed at the keyboard.
+
+</DL>
+
+
+
+<H3><A NAME="SEC21" HREF="rluserman.html#TOC21">Some Miscellaneous Commands</A></H3>
+<DL COMPACT>
+
+<DT><CODE>re-read-init-file (C-x C-r)</CODE>
+<DD>
+<A NAME="IDX82"></A>
+Read in the contents of the <VAR>inputrc</VAR> file, and incorporate
+any bindings or variable assignments found there.
+
+<DT><CODE>abort (C-g)</CODE>
+<DD>
+<A NAME="IDX83"></A>
+Abort the current editing command and
+ring the terminal's bell (subject to the setting of
+<CODE>bell-style</CODE>).
+
+<DT><CODE>do-uppercase-version (M-a, M-b, M-<VAR>x</VAR>, ...)</CODE>
+<DD>
+<A NAME="IDX84"></A>
+If the metafied character <VAR>x</VAR> is lowercase, run the command
+that is bound to the corresponding uppercase character.
+
+<DT><CODE>prefix-meta (ESC)</CODE>
+<DD>
+<A NAME="IDX85"></A>
+Make the next character typed be metafied. This is for keyboards
+without a meta key. Typing <SAMP>`ESC f'</SAMP> is equivalent to typing
+<SAMP>`M-f'</SAMP>.
+
+<DT><CODE>undo (C-_, C-x C-u)</CODE>
+<DD>
+<A NAME="IDX86"></A>
+Incremental undo, separately remembered for each line.
+
+<DT><CODE>revert-line (M-r)</CODE>
+<DD>
+<A NAME="IDX87"></A>
+Undo all changes made to this line. This is like executing the <CODE>undo</CODE>
+command enough times to get back to the beginning.
+
+<DT><CODE>tilde-expand (M-~)</CODE>
+<DD>
+<A NAME="IDX88"></A>
+Perform tilde expansion on the current word.
+
+<DT><CODE>set-mark (C-@)</CODE>
+<DD>
+<A NAME="IDX89"></A>
+Set the mark to the current point. If a
+numeric argument is supplied, the mark is set to that position.
+
+<DT><CODE>exchange-point-and-mark (C-x C-x)</CODE>
+<DD>
+<A NAME="IDX90"></A>
+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.
+
+<DT><CODE>character-search (C-])</CODE>
+<DD>
+<A NAME="IDX91"></A>
+A character is read and point is moved to the next occurrence of that
+character. A negative count searches for previous occurrences.
+
+<DT><CODE>character-search-backward (M-C-])</CODE>
+<DD>
+<A NAME="IDX92"></A>
+A character is read and point is moved to the previous occurrence
+of that character. A negative count searches for subsequent
+occurrences.
+
+<DT><CODE>insert-comment (M-#)</CODE>
+<DD>
+<A NAME="IDX93"></A>
+The value of the <CODE>comment-begin</CODE>
+variable is inserted at the beginning of the current line,
+and the line is accepted as if a newline had been typed.
+
+<DT><CODE>dump-functions ()</CODE>
+<DD>
+<A NAME="IDX94"></A>
+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 <VAR>inputrc</VAR> file. This command is unbound by default.
+
+<DT><CODE>dump-variables ()</CODE>
+<DD>
+<A NAME="IDX95"></A>
+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 <VAR>inputrc</VAR> file. This command is unbound by default.
+
+<DT><CODE>dump-macros ()</CODE>
+<DD>
+<A NAME="IDX96"></A>
+Print all of the Readline key sequences bound to macros and the
+strings they ouput. If a numeric argument is supplied,
+the output is formatted in such a way that it can be made part
+of an <VAR>inputrc</VAR> file. This command is unbound by default.
+
+</DL>
+
+
+
+<H2><A NAME="SEC22" HREF="rluserman.html#TOC22">Readline vi Mode</A></H2>
+
+<P>
+While the Readline library does not have a full set of <CODE>vi</CODE>
+editing functions, it does contain enough to allow simple editing
+of the line. The Readline <CODE>vi</CODE> mode behaves as specified in
+the POSIX 1003.2 standard.
+
+</P>
+<P>
+In order to switch interactively between <CODE>emacs</CODE> and <CODE>vi</CODE>
+editing modes, use the command M-C-j (toggle-editing-mode).
+The Readline default is <CODE>emacs</CODE> mode.
+
+</P>
+<P>
+When you enter a line in <CODE>vi</CODE> mode, you are already placed in
+`insertion' mode, as if you had typed an <SAMP>`i'</SAMP>. Pressing <KBD>ESC</KBD>
+switches you into `command' mode, where you can edit the text of the
+line with the standard <CODE>vi</CODE> movement keys, move to previous
+history lines with <SAMP>`k'</SAMP> and subsequent lines with <SAMP>`j'</SAMP>, and
+so forth.
+
+</P>
+
+<P><HR><P>
+This document was generated on 1 March 2000 using the
+<A HREF="http://wwwinfo.cern.ch/dis/texi2html/">texi2html</A>
+translator version 1.52.</P>
+</BODY>
+</HTML>
--- /dev/null
+This is Info file rluserman.info, produced by Makeinfo version 1.68
+from the input file
+/usr/homes/chet/src/bash/readline-src/doc/rluserman.texinfo.
+
+INFO-DIR-SECTION Libraries
+START-INFO-DIR-ENTRY
+* Readline: (readline). The GNU readline library API
+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) 1988-1999 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.
+
+\1f
+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.
+
+\1f
+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.
+
+\1f
+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.
+
+\1f
+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 <RETURN>. You do not have to be at the end
+of the line to press <RETURN>; 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.
+
+\1f
+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.)
+
+\1f
+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.
+
+\1f
+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 previous 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>.
+
+\1f
+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'.
+
+\1f
+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.
+
+ 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.
+
+\1f
+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.
+
+\1f
+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. Here is how to change from the default Emacs-like key
+ binding to use `vi' line editing commands:
+
+ set editing-mode vi
+
+ 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. 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'.
+
+ `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 strip the eighth bit from 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-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.
+
+ `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'.
+
+ `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 the name of
+ the key you wish to bind the command to, a colon, and then the
+ name of the command on a line in the init file. The name of the
+ key can be expressed in different ways, depending on which is most
+ comfortable for you.
+
+ 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', 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).
+
+ "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 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 character whose `ASCII' code is the octal value NNN (one
+ to three digits)
+
+ `\xNNN'
+ the character whose `ASCII' code is the hexadecimal value NNN
+ (one to three 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\\": "\\"
+
+\1f
+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 it. 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.
+ $include /etc/inputrc
+
+\1f
+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
+
+\1f
+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.
+
+\1f
+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.
+
+\1f
+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, Return)'
+ Accept the line regardless of where the cursor is. If this line is
+ non-empty, add it to the history list. If this line was a history
+ line, then restore the history line to its original state.
+
+`previous-history (C-p)'
+ Move `up' through the history list.
+
+`next-history (C-n)'
+ Move `down' through the history list.
+
+`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). 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-., 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.
+
+\1f
+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 under the cursor. If the cursor 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, 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.
+
+`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.
+
+\1f
+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 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 the current
+ cursor position.
+
+`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.
+
+\1f
+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.
+
+\1f
+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 do completion on the text before the cursor. This is
+ application-specific. Generally, if you are typing a filename
+ argument, you can do filename completion; if you are typing a
+ command, you can do command completion; if you are typing in a
+ symbol to GDB, you can do symbol name completion; if you are
+ typing in a variable to Bash, you can do variable name completion,
+ and so on.
+
+`possible-completions (M-?)'
+ List the possible completions of the text before the cursor.
+
+`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 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.
+
+\1f
+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.
+
+\1f
+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)'
+ Make the next character typed be metafied. This is for keyboards
+ without a meta key. Typing `ESC f' is equivalent to typing `M-f'.
+
+`undo (C-_, 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 current 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-#)'
+ The value of the `comment-begin' variable is inserted at the
+ beginning of the current line, and 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 ouput. 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.
+
+\1f
+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 (toggle-editing-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.
+
+
+\1f
+Tag Table:
+Node: Top\7f1221
+Node: Command Line Editing\7f1617
+Node: Introduction and Notation\7f2231
+Node: Readline Interaction\7f3850
+Node: Readline Bare Essentials\7f5044
+Node: Readline Movement Commands\7f6826
+Node: Readline Killing Commands\7f7784
+Node: Readline Arguments\7f9691
+Node: Searching\7f10667
+Node: Readline Init File\7f12511
+Node: Readline Init File Syntax\7f13573
+Node: Conditional Init Constructs\7f22839
+Node: Sample Init File\7f25279
+Node: Bindable Readline Commands\7f28450
+Node: Commands For Moving\7f29495
+Node: Commands For History\7f30345
+Node: Commands For Text\7f33063
+Node: Commands For Killing\7f35067
+Node: Numeric Arguments\7f37035
+Node: Commands For Completion\7f38163
+Node: Keyboard Macros\7f39912
+Node: Miscellaneous Commands\7f40472
+Node: Readline vi Mode\7f43277
+\1f
+End Tag Table
--- /dev/null
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+b Fn(16)374 1464 y(1.4.8)44 b(Some)15 b(Miscellaneous)i(Commands)7
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+f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f
+(.)h(.)f(.)h(.)28 b Fn(18)p eop
+%%Page: -2 22
+-2 21 bop 75 -58 a Fn(ii)1321 b(GNU)15 b(Readline)i(Library)p
+eop
+%%Trailer
+end
+userdict /end-hook known{end-hook}if
+%%EOF
--- /dev/null
+\input texinfo @c -*-texinfo-*-
+@comment %**start of header (This is for running Texinfo on a region.)
+@setfilename rluserman.info
+@settitle GNU Readline Library
+@comment %**end of header (This is for running Texinfo on a region.)
+@setchapternewpage odd
+
+@include manvers.texinfo
+
+@ifinfo
+@dircategory Libraries
+@direntry
+* Readline: (readline). The GNU readline library API
+@end direntry
+
+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) 1988-1999 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.
+
+@ignore
+Permission is granted to process this file through TeX and print the
+results, provided the printed document carries copying permission
+notice identical to this one except for the removal of this paragraph
+(this paragraph not being relevant to the printed manual).
+@end ignore
+
+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.
+@end ifinfo
+
+@titlepage
+@title GNU Readline Library User Interface
+@subtitle Edition @value{EDITION}, for @code{Readline Library} Version @value{VERSION}.
+@subtitle @value{UPDATE-MONTH}
+@author Brian Fox, Free Software Foundation
+@author Chet Ramey, Case Western Reserve University
+
+@page
+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.
+
+Published by the Free Software Foundation @*
+59 Temple Place, Suite 330, @*
+Boston, MA 02111 USA
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are 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.
+
+@vskip 0pt plus 1filll
+Copyright @copyright{} 1988-1999 Free Software Foundation, Inc.
+@end titlepage
+
+@ifinfo
+@node Top
+@top 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.
+@end menu
+@end ifinfo
+
+@include rluser.texinfo
+
+@contents
+@bye
--- /dev/null
+/*
+From: Jeff Solomon <jsolomon@stanford.edu>
+Date: Fri, 9 Apr 1999 10:13:27 -0700 (PDT)
+To: chet@po.cwru.edu
+Subject: new readline example
+Message-ID: <14094.12094.527305.199695@mrclean.Stanford.EDU>
+
+Chet,
+
+I've been using readline 4.0. Specifically, I've been using the perl
+version Term::ReadLine::Gnu. It works great.
+
+Anyway, I've been playing around the alternate interface and I wanted
+to contribute a little C program, callback.c, to you that you could
+use as an example of the alternate interface in the /examples
+directory of the readline distribution.
+
+My example shows how, using the alternate interface, you can
+interactively change the prompt (which is very nice imo). Also, I
+point out that you must roll your own terminal setting when using the
+alternate interface because readline depreps (using your parlance) the
+terminal while in the user callback. I try to demostrate what I mean
+with an example. I've included the program below.
+
+To compile, I just put the program in the examples directory and made
+the appropriate changes to the EXECUTABLES and OBJECTS line and added
+an additional target 'callback'.
+
+I compiled on my Sun Solaris2.6 box using Sun's cc.
+
+Let me know what you think.
+
+Jeff
+*/
+
+#if defined (HAVE_CONFIG_H)
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <termios.h> /* xxx - should make this more general */
+
+#ifdef READLINE_LIBRARY
+# include "readline.h"
+#else
+# include <readline/readline.h>
+#endif
+
+/* This little examples demonstrates the alternate interface to using readline.
+ * In the alternate interface, the user maintains control over program flow and
+ * only calls readline when STDIN is readable. Using the alternate interface,
+ * you can do anything else while still using readline (like talking to a
+ * network or another program) without blocking.
+ *
+ * Specifically, this program highlights two importants features of the
+ * alternate interface. The first is the ability to interactively change the
+ * prompt, which can't be done using the regular interface since rl_prompt is
+ * read-only.
+ *
+ * The second feature really highlights a subtle point when using the alternate
+ * interface. That is, readline will not alter the terminal when inside your
+ * callback handler. So let's so, your callback executes a user command that
+ * takes a non-trivial amount of time to complete (seconds). While your
+ * executing the command, the user continues to type keystrokes and expects them
+ * to be re-echoed on the new prompt when it returns. Unfortunately, the default
+ * terminal configuration doesn't do this. After the prompt returns, the user
+ * must hit one additional keystroke and then will see all of his previous
+ * keystrokes. To illustrate this, compile and run this program. Type "sleep" at
+ * the prompt and then type "bar" before the prompt returns (you have 3
+ * seconds). Notice how "bar" is re-echoed on the prompt after the prompt
+ * returns? This is what you expect to happen. Now comment out the 4 lines below
+ * the line that says COMMENT LINE BELOW. Recompile and rerun the program and do
+ * the same thing. When the prompt returns, you should not see "bar". Now type
+ * "f", see how "barf" magically appears? This behavior is un-expected and not
+ * desired.
+ */
+
+void process_line(char *line);
+int change_prompt(void);
+char *get_prompt(void);
+
+int prompt = 1;
+char prompt_buf[40], line_buf[256];
+tcflag_t old_lflag;
+cc_t old_vtime;
+struct termios term;
+
+int
+main()
+{
+ fd_set fds;
+
+ /* Adjust the terminal slightly before the handler is installed. Disable
+ * canonical mode processing and set the input character time flag to be
+ * non-blocking.
+ */
+ if( tcgetattr(STDIN_FILENO, &term) < 0 ) {
+ perror("tcgetattr");
+ exit(1);
+ }
+ old_lflag = term.c_lflag;
+ old_vtime = term.c_cc[VTIME];
+ term.c_lflag &= ~ICANON;
+ term.c_cc[VTIME] = 1;
+ /* COMMENT LINE BELOW - see above */
+ if( tcsetattr(STDIN_FILENO, TCSANOW, &term) < 0 ) {
+ perror("tcsetattr");
+ exit(1);
+ }
+
+ rl_add_defun("change-prompt", change_prompt, CTRL('t'));
+ rl_callback_handler_install(get_prompt(), process_line);
+
+ while(1) {
+ FD_ZERO(&fds);
+ FD_SET(fileno(stdin), &fds);
+
+ if( select(FD_SETSIZE, &fds, NULL, NULL, NULL) < 0) {
+ perror("select");
+ exit(1);
+ }
+
+ if( FD_ISSET(fileno(stdin), &fds) ) {
+ rl_callback_read_char();
+ }
+ }
+}
+
+void
+process_line(char *line)
+{
+ if( line == NULL ) {
+ fprintf(stderr, "\n", line);
+
+ /* reset the old terminal setting before exiting */
+ term.c_lflag = old_lflag;
+ term.c_cc[VTIME] = old_vtime;
+ if( tcsetattr(STDIN_FILENO, TCSANOW, &term) < 0 ) {
+ perror("tcsetattr");
+ exit(1);
+ }
+ exit(0);
+ }
+
+ if( strcmp(line, "sleep") == 0 ) {
+ sleep(3);
+ } else {
+ fprintf(stderr, "|%s|\n", line);
+ }
+}
+
+int
+change_prompt(void)
+{
+ /* toggle the prompt variable */
+ prompt = !prompt;
+
+ /* save away the current contents of the line */
+ strcpy(line_buf, rl_line_buffer);
+
+ /* install a new handler which will change the prompt and erase the current line */
+ rl_callback_handler_install(get_prompt(), process_line);
+
+ /* insert the old text on the new line */
+ rl_insert_text(line_buf);
+
+ /* redraw the current line - this is an undocumented function. It invokes the
+ * redraw-current-line command.
+ */
+ rl_refresh_line(0, 0);
+}
+
+char *
+get_prompt(void)
+{
+ /* The prompts can even be different lengths! */
+ sprintf(prompt_buf, "%s",
+ prompt ? "Hit ctrl-t to toggle prompt> " : "Pretty cool huh?> ");
+ return prompt_buf;
+}
--- /dev/null
+/* A front-end using readline to "cook" input lines for Kawa.
+ *
+ * Copyright (C) 1999 Per Bothner
+ *
+ * This front-end program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * Some code from Johnson & Troan: "Linux Application Development"
+ * (Addison-Wesley, 1998) was used directly or for inspiration.
+ */
+
+/* PROBLEMS/TODO:
+ *
+ * Only tested under Linux; needs to be ported.
+ *
+ * When running mc -c under the Linux console, mc does not recognize
+ * mouse clicks, which mc does when not running under fep.
+ *
+ * Pasting selected text containing tabs is like hitting the tab character,
+ * which invokes readline completion. We don't want this. I don't know
+ * if this is fixable without integrating fep into a terminal emulator.
+ *
+ * Echo suppression is a kludge, but can only be avoided with better kernel
+ * support: We need a tty mode to disable "real" echoing, while still
+ * letting the inferior think its tty driver to doing echoing.
+ * Stevens's book claims SCR$ and BSD4.3+ have TIOCREMOTE.
+ *
+ * The latest readline may have some hooks we can use to avoid having
+ * to back up the prompt.
+ *
+ * Desirable readline feature: When in cooked no-echo mode (e.g. password),
+ * echo characters are they are types with '*', but remove them when done.
+ *
+ * A synchronous output while we're editing an input line should be
+ * inserted in the output view *before* the input line, so that the
+ * lines being edited (with the prompt) float at the end of the input.
+ *
+ * A "page mode" option to emulate more/less behavior: At each page of
+ * output, pause for a user command. This required parsing the output
+ * to keep track of line lengths. It also requires remembering the
+ * output, if we want an option to scroll back, which suggests that
+ * this should be integrated with a terminal emulator like xterm.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <signal.h>
+#include <netdb.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <grp.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+
+#ifdef READLINE_LIBRARY
+# include "readline.h"
+# include "history.h"
+#else
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
+
+#ifndef COMMAND
+#define COMMAND "/bin/sh"
+#endif
+#ifndef COMMAND_ARGS
+#define COMMAND_ARGS COMMAND
+#endif
+
+#ifndef HAVE_MEMMOVE
+# if __GNUC__ > 1
+# define memmove(d, s, n) __builtin_memcpy(d, s, n)
+# else
+# define memmove(d, s, n) memcpy(d, s, n)
+# endif
+#else
+# define memmove(d, s, n) memcpy(d, s, n)
+#endif
+
+#define APPLICATION_NAME "Fep"
+
+static int in_from_inferior_fd;
+static int out_to_inferior_fd;
+
+/* Unfortunately, we cannot safely display echo from the inferior process.
+ The reason is that the echo bit in the pty is "owned" by the inferior,
+ and if we try to turn it off, we could confuse the inferior.
+ Thus, when echoing, we get echo twice: First readline echoes while
+ we're actually editing. Then we send the line to the inferior, and the
+ terminal driver send back an extra echo.
+ The work-around is to remember the input lines, and when we see that
+ line come back, we supress the output.
+ A better solution (supposedly available on SVR4) would be a smarter
+ terminal driver, with more flags ... */
+#define ECHO_SUPPRESS_MAX 1024
+char echo_suppress_buffer[ECHO_SUPPRESS_MAX];
+int echo_suppress_start = 0;
+int echo_suppress_limit = 0;
+
+#define DEBUG
+
+#ifdef DEBUG
+FILE *logfile = NULL;
+#define DPRINT0(FMT) (fprintf(logfile, FMT), fflush(logfile))
+#define DPRINT1(FMT, V1) (fprintf(logfile, FMT, V1), fflush(logfile))
+#define DPRINT2(FMT, V1, V2) (fprintf(logfile, FMT, V1, V2), fflush(logfile))
+#else
+#define DPRINT0(FMT) /* Do nothing */
+#define DPRINT1(FMT, V1) /* Do nothing */
+#define DPRINT2(FMT, V1, V2) /* Do nothing */
+#endif
+
+struct termios orig_term;
+
+/* Pid of child process. */
+static pid_t child = -1;
+
+static void
+sig_child (int signo)
+{
+ int status;
+ wait (&status);
+ DPRINT0 ("(Child process died.)\n");
+ tcsetattr(STDIN_FILENO, TCSANOW, &orig_term);
+ exit (0);
+}
+
+volatile int propagate_sigwinch = 0;
+
+/* sigwinch_handler
+ * propagate window size changes from input file descriptor to
+ * master side of pty.
+ */
+void sigwinch_handler(int signal) {
+ propagate_sigwinch = 1;
+}
+
+/* get_master_pty() takes a double-indirect character pointer in which
+ * to put a slave name, and returns an integer file descriptor.
+ * If it returns < 0, an error has occurred.
+ * Otherwise, it has returned the master pty file descriptor, and fills
+ * in *name with the name of the corresponding slave pty.
+ * Once the slave pty has been opened, you are responsible to free *name.
+ */
+
+int get_master_pty(char **name) {
+ int i, j;
+ /* default to returning error */
+ int master = -1;
+
+ /* create a dummy name to fill in */
+ *name = strdup("/dev/ptyXX");
+
+ /* search for an unused pty */
+ for (i=0; i<16 && master <= 0; i++) {
+ for (j=0; j<16 && master <= 0; j++) {
+ (*name)[5] = 'p';
+ (*name)[8] = "pqrstuvwxyzPQRST"[i];
+ (*name)[9] = "0123456789abcdef"[j];
+ /* open the master pty */
+ if ((master = open(*name, O_RDWR)) < 0) {
+ if (errno == ENOENT) {
+ /* we are out of pty devices */
+ free (*name);
+ return (master);
+ }
+ }
+ else {
+ /* By substituting a letter, we change the master pty
+ * name into the slave pty name.
+ */
+ (*name)[5] = 't';
+ if (access(*name, R_OK|W_OK) != 0)
+ {
+ close(master);
+ master = -1;
+ }
+ }
+ }
+ }
+ if ((master < 0) && (i == 16) && (j == 16)) {
+ /* must have tried every pty unsuccessfully */
+ free (*name);
+ return (master);
+ }
+
+ (*name)[5] = 't';
+
+ return (master);
+}
+
+/* get_slave_pty() returns an integer file descriptor.
+ * If it returns < 0, an error has occurred.
+ * Otherwise, it has returned the slave file descriptor.
+ */
+
+int get_slave_pty(char *name) {
+ struct group *gptr;
+ gid_t gid;
+ int slave = -1;
+
+ /* chown/chmod the corresponding pty, if possible.
+ * This will only work if the process has root permissions.
+ * Alternatively, write and exec a small setuid program that
+ * does just this.
+ */
+ if ((gptr = getgrnam("tty")) != 0) {
+ gid = gptr->gr_gid;
+ } else {
+ /* if the tty group does not exist, don't change the
+ * group on the slave pty, only the owner
+ */
+ gid = -1;
+ }
+
+ /* Note that we do not check for errors here. If this is code
+ * where these actions are critical, check for errors!
+ */
+ chown(name, getuid(), gid);
+ /* This code only makes the slave read/writeable for the user.
+ * If this is for an interactive shell that will want to
+ * receive "write" and "wall" messages, OR S_IWGRP into the
+ * second argument below.
+ */
+ chmod(name, S_IRUSR|S_IWUSR);
+
+ /* open the corresponding slave pty */
+ slave = open(name, O_RDWR);
+ return (slave);
+}
+
+/* Certain special characters, such as ctrl/C, we want to pass directly
+ to the inferior, rather than letting readline handle them. */
+
+static char special_chars[20];
+static int special_chars_count;
+
+static void
+add_special_char(int ch)
+{
+ if (ch != 0)
+ special_chars[special_chars_count++] = ch;
+}
+
+static int eof_char;
+
+static int
+is_special_char(int ch)
+{
+ int i;
+#if 0
+ if (ch == eof_char && rl_point == rl_end)
+ return 1;
+#endif
+ for (i = special_chars_count; --i >= 0; )
+ if (special_chars[i] == ch)
+ return 1;
+ return 0;
+}
+
+static char buf[1024];
+/* buf[0 .. buf_count-1] is the what has been emitted on the current line.
+ It is used as the readline prompt. */
+static int buf_count = 0;
+
+int num_keys = 0;
+
+static void
+null_prep_terminal (int meta)
+{
+}
+
+static void
+null_deprep_terminal ()
+{
+}
+
+char pending_special_char;
+
+static void
+line_handler (char *line)
+{
+ if (line == NULL)
+ {
+ char buf[1];
+ DPRINT0("saw eof!\n");
+ buf[0] = '\004'; /* ctrl/d */
+ write (out_to_inferior_fd, buf, 1);
+ }
+ else
+ {
+ static char enter[] = "\r";
+ /* Send line to inferior: */
+ int length = strlen (line);
+ if (length > ECHO_SUPPRESS_MAX-2)
+ {
+ echo_suppress_start = 0;
+ echo_suppress_limit = 0;
+ }
+ else
+ {
+ if (echo_suppress_limit + length > ECHO_SUPPRESS_MAX - 2)
+ {
+ if (echo_suppress_limit - echo_suppress_start + length
+ <= ECHO_SUPPRESS_MAX - 2)
+ {
+ memmove (echo_suppress_buffer,
+ echo_suppress_buffer + echo_suppress_start,
+ echo_suppress_limit - echo_suppress_start);
+ echo_suppress_limit -= echo_suppress_start;
+ echo_suppress_start = 0;
+ }
+ else
+ {
+ echo_suppress_limit = 0;
+ }
+ echo_suppress_start = 0;
+ }
+ memcpy (echo_suppress_buffer + echo_suppress_limit,
+ line, length);
+ echo_suppress_limit += length;
+ echo_suppress_buffer[echo_suppress_limit++] = '\r';
+ echo_suppress_buffer[echo_suppress_limit++] = '\n';
+ }
+ write (out_to_inferior_fd, line, length);
+ if (pending_special_char == 0)
+ {
+ write (out_to_inferior_fd, enter, sizeof(enter)-1);
+ if (*line)
+ add_history (line);
+ }
+ free (line);
+ }
+ rl_callback_handler_remove ();
+ buf_count = 0;
+ num_keys = 0;
+ if (pending_special_char != 0)
+ {
+ write (out_to_inferior_fd, &pending_special_char, 1);
+ pending_special_char = 0;
+ }
+}
+
+/* Value of rl_getc_function.
+ Use this because readline should read from stdin, not rl_instream,
+ points to the pty (so readline has monitor its terminal modes). */
+
+int
+my_rl_getc (FILE *dummy)
+{
+ int ch = rl_getc (stdin);
+ if (is_special_char (ch))
+ {
+ pending_special_char = ch;
+ return '\r';
+ }
+ return ch;
+}
+
+int
+main(int argc, char** argv)
+{
+ char *path;
+ int i;
+ int master;
+ char *name;
+ int in_from_tty_fd;
+ struct sigaction act;
+ struct winsize ws;
+ struct termios t;
+ int maxfd;
+ fd_set in_set;
+ static char empty_string[1] = "";
+ char *prompt = empty_string;
+ int ioctl_err = 0;
+
+#ifdef DEBUG
+ logfile = fopen("LOG", "w");
+#endif
+
+ rl_readline_name = APPLICATION_NAME;
+
+ if ((master = get_master_pty(&name)) < 0)
+ {
+ perror("ptypair: could not open master pty");
+ exit(1);
+ }
+
+ DPRINT1("pty name: '%s'\n", name);
+
+ /* set up SIGWINCH handler */
+ act.sa_handler = sigwinch_handler;
+ sigemptyset(&(act.sa_mask));
+ act.sa_flags = 0;
+ if (sigaction(SIGWINCH, &act, NULL) < 0)
+ {
+ perror("ptypair: could not handle SIGWINCH ");
+ exit(1);
+ }
+
+ if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) < 0)
+ {
+ perror("ptypair: could not get window size");
+ exit(1);
+ }
+
+ if ((child = fork()) < 0)
+ {
+ perror("cannot fork");
+ exit(1);
+ }
+
+ if (child == 0)
+ {
+ int slave; /* file descriptor for slave pty */
+
+ /* We are in the child process */
+ close(master);
+
+#ifdef TIOCSCTTY
+ if ((slave = get_slave_pty(name)) < 0)
+ {
+ perror("ptypair: could not open slave pty");
+ exit(1);
+ }
+ free(name);
+#endif
+
+ /* We need to make this process a session group leader, because
+ * it is on a new PTY, and things like job control simply will
+ * not work correctly unless there is a session group leader
+ * and process group leader (which a session group leader
+ * automatically is). This also disassociates us from our old
+ * controlling tty.
+ */
+ if (setsid() < 0)
+ {
+ perror("could not set session leader");
+ }
+
+ /* Tie us to our new controlling tty. */
+#ifdef TIOCSCTTY
+ if (ioctl(slave, TIOCSCTTY, NULL))
+ {
+ perror("could not set new controlling tty");
+ }
+#else
+ if ((slave = get_slave_pty(name)) < 0)
+ {
+ perror("ptypair: could not open slave pty");
+ exit(1);
+ }
+ free(name);
+#endif
+
+ /* make slave pty be standard in, out, and error */
+ dup2(slave, STDIN_FILENO);
+ dup2(slave, STDOUT_FILENO);
+ dup2(slave, STDERR_FILENO);
+
+ /* at this point the slave pty should be standard input */
+ if (slave > 2)
+ {
+ close(slave);
+ }
+
+ /* Try to restore window size; failure isn't critical */
+ if (ioctl(STDOUT_FILENO, TIOCSWINSZ, &ws) < 0)
+ {
+ perror("could not restore window size");
+ }
+
+ /* now start the shell */
+ {
+ static char* command_args[] = { COMMAND_ARGS, NULL };
+ if (argc <= 1)
+ execvp(COMMAND, command_args);
+ else
+ execvp(argv[1], &argv[1]);
+ }
+
+ /* should never be reached */
+ exit(1);
+ }
+
+ /* parent */
+ signal (SIGCHLD, sig_child);
+ free(name);
+
+ /* Note that we only set termios settings for standard input;
+ * the master side of a pty is NOT a tty.
+ */
+ tcgetattr(STDIN_FILENO, &orig_term);
+
+ t = orig_term;
+ eof_char = t.c_cc[VEOF];
+ /* add_special_char(t.c_cc[VEOF]);*/
+ add_special_char(t.c_cc[VINTR]);
+ add_special_char(t.c_cc[VQUIT]);
+ add_special_char(t.c_cc[VSUSP]);
+#if defined (VDISCARD)
+ add_special_char(t.c_cc[VDISCARD]);
+#endif
+
+#if 0
+ t.c_lflag |= (ICANON | ISIG | ECHO | ECHOCTL | ECHOE | \
+ ECHOK | ECHOKE | ECHONL | ECHOPRT );
+#else
+ t.c_lflag &= ~(ICANON | ISIG | ECHO | ECHOCTL | ECHOE | \
+ ECHOK | ECHOKE | ECHONL | ECHOPRT );
+#endif
+ t.c_iflag |= IGNBRK;
+ t.c_cc[VMIN] = 1;
+ t.c_cc[VTIME] = 0;
+ tcsetattr(STDIN_FILENO, TCSANOW, &t);
+ in_from_inferior_fd = master;
+ out_to_inferior_fd = master;
+ rl_instream = fdopen (master, "r");
+ rl_getc_function = my_rl_getc;
+
+ rl_prep_term_function = null_prep_terminal;
+ rl_deprep_term_function = null_deprep_terminal;
+ rl_callback_handler_install (prompt, line_handler);
+
+ in_from_tty_fd = STDIN_FILENO;
+ FD_ZERO (&in_set);
+ maxfd = in_from_inferior_fd > in_from_tty_fd ? in_from_inferior_fd
+ : in_from_tty_fd;
+ for (;;)
+ {
+ int num;
+ FD_SET (in_from_inferior_fd, &in_set);
+ FD_SET (in_from_tty_fd, &in_set);
+
+ num = select(maxfd+1, &in_set, NULL, NULL, NULL);
+
+ if (propagate_sigwinch)
+ {
+ struct winsize ws;
+ if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) >= 0)
+ {
+ ioctl (master, TIOCSWINSZ, &ws);
+ }
+ propagate_sigwinch = 0;
+ continue;
+ }
+
+ if (num <= 0)
+ {
+ perror ("select");
+ exit (-1);
+ }
+ if (FD_ISSET (in_from_tty_fd, &in_set))
+ {
+ extern int readline_echoing_p;
+ struct termios term_master;
+ int do_canon = 1;
+ int ioctl_ret;
+
+ DPRINT1("[tty avail num_keys:%d]\n", num_keys);
+
+ /* If we can't get tty modes for the master side of the pty, we
+ can't handle non-canonical-mode programs. Always assume the
+ master is in canonical echo mode if we can't tell. */
+ ioctl_ret = tcgetattr(master, &term_master);
+
+ if (ioctl_ret >= 0)
+ {
+ DPRINT2 ("echo:%d, canon:%d\n",
+ (term_master.c_lflag & ECHO) != 0,
+ (term_master.c_lflag & ICANON) != 0);
+ do_canon = (term_master.c_lflag & ICANON) != 0;
+ readline_echoing_p = (term_master.c_lflag & ECHO) != 0;
+ }
+ else
+ {
+ if (ioctl_err == 0)
+ DPRINT1("tcgetattr on master fd failed: errno = %d\n", errno);
+ ioctl_err = 1;
+ }
+
+ if (do_canon == 0 && num_keys == 0)
+ {
+ char ch[10];
+ int count = read (STDIN_FILENO, ch, sizeof(ch));
+ write (out_to_inferior_fd, ch, count);
+ }
+ else
+ {
+ if (num_keys == 0)
+ {
+ int i;
+ /* Re-install callback handler for new prompt. */
+ if (prompt != empty_string)
+ free (prompt);
+ prompt = malloc (buf_count + 1);
+ if (prompt == NULL)
+ prompt = empty_string;
+ else
+ {
+ memcpy (prompt, buf, buf_count);
+ prompt[buf_count] = '\0';
+ DPRINT1("New prompt '%s'\n", prompt);
+#if 0 /* ifdef HAVE_RL_ALREADY_PROMPTED -- doesn't work */
+ rl_already_prompted = buf_count > 0;
+#else
+ if (buf_count > 0)
+ write (1, "\r", 1);
+#endif
+ }
+ rl_callback_handler_install (prompt, line_handler);
+ }
+ num_keys++;
+ rl_callback_read_char ();
+ }
+ }
+ else /* input from inferior. */
+ {
+ int i;
+ int count;
+ int old_count;
+ if (buf_count > (sizeof(buf) >> 2))
+ buf_count = 0;
+ count = read (in_from_inferior_fd, buf+buf_count,
+ sizeof(buf) - buf_count);
+ if (count <= 0)
+ {
+ DPRINT0 ("(Connection closed by foreign host.)\n");
+ tcsetattr(STDIN_FILENO, TCSANOW, &orig_term);
+ exit (0);
+ }
+ old_count = buf_count;
+
+ /* Look for any pending echo that we need to suppress. */
+ while (echo_suppress_start < echo_suppress_limit
+ && count > 0
+ && buf[buf_count] == echo_suppress_buffer[echo_suppress_start])
+ {
+ count--;
+ buf_count++;
+ echo_suppress_start++;
+ }
+
+ /* Write to the terminal anything that was not suppressed. */
+ if (count > 0)
+ write (1, buf + buf_count, count);
+
+ /* Finally, look for a prompt candidate.
+ * When we get around to going input (from the keyboard),
+ * we will consider the prompt to be anything since the last
+ * line terminator. So we need to save that text in the
+ * initial part of buf. However, anything before the
+ * most recent end-of-line is not interesting. */
+ buf_count += count;
+#if 1
+ for (i = buf_count; --i >= old_count; )
+#else
+ for (i = buf_count - 1; i-- >= buf_count - count; )
+#endif
+ {
+ if (buf[i] == '\n' || buf[i] == '\r')
+ {
+ i++;
+ memmove (buf, buf+i, buf_count - i);
+ buf_count -= i;
+ break;
+ }
+ }
+ DPRINT2("-> i: %d, buf_count: %d\n", i, buf_count);
+ }
+ }
+}
--- /dev/null
+/* rlprivate.h -- functions and variables global to the readline library,
+ but not intended for use by applications. */
+
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#if !defined (_RL_PRIVATE_H_)
+#define _RL_PRIVATE_H_
+
+#include "rlconf.h" /* for VISIBLE_STATS */
+#include "rlstdc.h"
+#include "posixjmp.h" /* defines procenv_t */
+
+/*************************************************************************
+ * *
+ * Global functions undocumented in texinfo manual and not in readline.h *
+ * *
+ *************************************************************************/
+
+/* terminal.c */
+extern char *rl_get_termcap __P((char *));
+
+/*************************************************************************
+ * *
+ * Global variables undocumented in texinfo manual and not in readline.h *
+ * *
+ *************************************************************************/
+
+/* complete.c */
+extern int rl_complete_with_tilde_expansion;
+#if defined (VISIBLE_STATS)
+extern int rl_visible_stats;
+#endif /* VISIBLE_STATS */
+
+/* readline.c */
+extern int rl_line_buffer_len;
+extern int rl_numeric_arg;
+extern int rl_arg_sign;
+extern int rl_explicit_arg;
+extern int rl_editing_mode;
+extern int rl_visible_prompt_length;
+extern Function *rl_last_func;
+extern int readline_echoing_p;
+extern int rl_key_sequence_length;
+
+/* display.c */
+extern int rl_display_fixed;
+
+/* parens.c */
+extern int rl_blink_matching_paren;
+
+/*************************************************************************
+ * *
+ * Global functions and variables unsed and undocumented *
+ * *
+ *************************************************************************/
+
+/* bind.c */
+extern char *rl_untranslate_keyseq __P((int));
+
+/* kill.c */
+extern int rl_set_retained_kills __P((int));
+
+/* readline.c */
+extern int rl_discard_argument __P((void));
+
+/* rltty.c */
+extern int rl_stop_output __P((int, int));
+
+/* terminal.c */
+extern void _rl_set_screen_size __P((int, int));
+
+/* undo.c */
+extern int _rl_fix_last_undo_of_type __P((int, int, int));
+
+/* util.c */
+extern char *_rl_savestring __P((char *));
+
+/*************************************************************************
+ * *
+ * Functions and variables private to the readline library *
+ * *
+ *************************************************************************/
+
+/* NOTE: Functions and variables prefixed with `_rl_' are
+ pseudo-global: they are global so they can be shared
+ between files in the readline library, but are not intended
+ to be visible to readline callers. */
+
+/*************************************************************************
+ * Undocumented private functions *
+ *************************************************************************/
+
+#if defined(READLINE_CALLBACKS)
+
+/* readline.c */
+extern void readline_internal_setup __P((void));
+extern char *readline_internal_teardown __P((int));
+extern int readline_internal_char __P((void));
+
+#endif /* READLINE_CALLBACKS */
+
+/* bind.c */
+extern void _rl_bind_if_unbound __P((char *, Function *));
+
+/* display.c */
+extern char *_rl_strip_prompt __P((char *));
+extern void _rl_move_cursor_relative __P((int, char *));
+extern void _rl_move_vert __P((int));
+extern void _rl_save_prompt __P((void));
+extern void _rl_restore_prompt __P((void));
+extern char *_rl_make_prompt_for_search __P((int));
+extern void _rl_erase_at_end_of_line __P((int));
+extern void _rl_clear_to_eol __P((int));
+extern void _rl_clear_screen __P((void));
+extern void _rl_update_final __P((void));
+extern void _rl_redisplay_after_sigwinch __P((void));
+extern void _rl_clean_up_for_exit __P((void));
+extern void _rl_erase_entire_line __P((void));
+extern int _rl_currentb_display_line __P((void));
+
+/* input.c */
+extern int _rl_any_typein __P((void));
+extern int _rl_input_available __P((void));
+extern void _rl_insert_typein __P((int));
+
+/* macro.c */
+extern void _rl_with_macro_input __P((char *));
+extern int _rl_next_macro_key __P((void));
+extern void _rl_push_executing_macro __P((void));
+extern void _rl_pop_executing_macro __P((void));
+extern void _rl_add_macro_char __P((int));
+extern void _rl_kill_kbd_macro __P((void));
+
+/* nls.c */
+extern int _rl_init_eightbit __P((void));
+
+/* parens.c */
+extern void _rl_enable_paren_matching __P((int));
+
+/* readline.c */
+extern void _rl_init_line_state __P((void));
+extern void _rl_set_the_line __P((void));
+extern int _rl_dispatch __P((int, Keymap));
+extern int _rl_init_argument __P((void));
+extern void _rl_fix_point __P((int));
+extern void _rl_replace_text __P((char *, int, int));
+extern int _rl_char_search_internal __P((int, int, int));
+extern int _rl_set_mark_at_pos __P((int));
+
+/* rltty.c */
+extern int _rl_disable_tty_signals __P((void));
+extern int _rl_restore_tty_signals __P((void));
+
+/* terminal.c */
+extern void _rl_get_screen_size __P((int, int));
+extern int _rl_init_terminal_io __P((char *));
+#ifdef _MINIX
+extern void _rl_output_character_function __P((int));
+#else
+extern int _rl_output_character_function __P((int));
+#endif
+extern void _rl_output_some_chars __P((char *, int));
+extern int _rl_backspace __P((int));
+extern void _rl_enable_meta_key __P((void));
+extern void _rl_control_keypad __P((int));
+
+/* util.c */
+extern int alphabetic __P((int));
+extern int _rl_abort_internal __P((void));
+extern char *_rl_strindex __P((char *, char *));
+extern int _rl_qsort_string_compare __P((char **, char **));
+extern int (_rl_uppercase_p) __P((int));
+extern int (_rl_lowercase_p) __P((int));
+extern int (_rl_pure_alphabetic) __P((int));
+extern int (_rl_digit_p) __P((int));
+extern int (_rl_to_lower) __P((int));
+extern int (_rl_to_upper) __P((int));
+extern int (_rl_digit_value) __P((int));
+
+/* vi_mode.c */
+extern void _rl_vi_initialize_line __P((void));
+extern void _rl_vi_reset_last __P((void));
+extern void _rl_vi_set_last __P((int, int, int));
+extern int _rl_vi_textmod_command __P((int));
+extern void _rl_vi_done_inserting __P((void));
+
+/*************************************************************************
+ * Undocumented private variables *
+ *************************************************************************/
+
+/* complete.c */
+extern int _rl_complete_show_all;
+extern int _rl_complete_mark_directories;
+extern int _rl_print_completions_horizontally;
+extern int _rl_completion_case_fold;
+
+/* display.c */
+extern int _rl_vis_botlin;
+extern int _rl_last_c_pos;
+extern int _rl_suppress_redisplay;
+extern char *rl_display_prompt;
+
+/* funmap.c */
+extern char *possible_control_prefixes[];
+extern char *possible_meta_prefixes[];
+
+/* isearch.c */
+extern unsigned char *_rl_isearch_terminators;
+
+/* macro.c */
+extern int _rl_defining_kbd_macro;
+extern char *_rl_executing_macro;
+
+/* readline.c */
+extern int _rl_horizontal_scroll_mode;
+extern int _rl_mark_modified_lines;
+extern int _rl_bell_preference;
+extern int _rl_meta_flag;
+extern int _rl_convert_meta_chars_to_ascii;
+extern int _rl_output_meta_chars;
+extern char *_rl_comment_begin;
+extern unsigned char _rl_parsing_conditionalized_out;
+extern Keymap _rl_keymap;
+extern FILE *_rl_in_stream;
+extern FILE *_rl_out_stream;
+extern int _rl_last_command_was_kill;
+extern int _rl_eof_char;
+extern procenv_t readline_top_level;
+
+/* terminal.c */
+extern int _rl_enable_keypad;
+extern int _rl_enable_meta;
+extern char *term_clreol;
+extern char *term_clrpag;
+extern char *term_im;
+extern char *term_ic;
+extern char *term_ei;
+extern char *term_DC;
+extern char *term_up;
+extern char *term_dc;
+extern char *term_cr;
+extern char *term_IC;
+extern int screenheight;
+extern int screenwidth;
+extern int screenchars;
+extern int terminal_can_insert;
+extern int _rl_term_autowrap;
+
+/* undo.c */
+extern int _rl_doing_an_undo;
+extern int _rl_undo_group_level;
+
+#endif /* _RL_PRIVATE_H_ */
--- /dev/null
+/* rlshell.h -- utility functions normally provided by bash. */
+
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#if !defined (_RL_SHELL_H_)
+#define _RL_SHELL_H_
+
+#include "rlstdc.h"
+
+extern char *single_quote __P((char *));
+extern void set_lines_and_columns __P((int, int));
+extern char *get_env_value __P((char *));
+extern char *get_home_dir __P((void));
+extern int unset_nodelay_mode __P((int));
+
+#endif /* _RL_SHELL_H_ */
--- /dev/null
+/* xmalloc.h -- memory allocation that aborts on errors. */
+
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2, or
+ (at your option) any later version.
+
+ The GNU Readline Library is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#if !defined (_XMALLOC_H_)
+#define _XMALLOC_H_
+
+#if defined (READLINE_LIBRARY)
+# include "rlstdc.h"
+#else
+# include <readline/rlstdc.h>
+#endif
+
+#ifndef PTR_T
+
+#ifdef __STDC__
+# define PTR_T void *
+#else
+# define PTR_T char *
+#endif
+
+#endif /* !PTR_T */
+
+extern char *xmalloc __P((int));
+extern char *xrealloc __P((void *, int));
+extern void xfree __P((void *));
+
+#endif /* _XMALLOC_H_ */
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