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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 06:17:24 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 06:17:24 +0000
commit9d8085074991d5c0a42d6fc96a2d1a3ee918aad1 (patch)
treec85bca1e6c11eb872edfc64c524d20f2b7e3307b /lib/readline/examples
parentInitial commit. (diff)
downloadbash-9d8085074991d5c0a42d6fc96a2d1a3ee918aad1.tar.xz
bash-9d8085074991d5c0a42d6fc96a2d1a3ee918aad1.zip
Adding upstream version 5.1.upstream/5.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/readline/examples')
-rw-r--r--lib/readline/examples/Inputrc81
-rw-r--r--lib/readline/examples/Makefile44
-rw-r--r--lib/readline/examples/excallback.c196
-rw-r--r--lib/readline/examples/fileman.c506
-rw-r--r--lib/readline/examples/histexamp.c125
-rw-r--r--lib/readline/examples/manexamp.c111
-rw-r--r--lib/readline/examples/rl-callbacktest.c90
-rw-r--r--lib/readline/examples/rl.c158
-rw-r--r--lib/readline/examples/rlcat.c179
-rw-r--r--lib/readline/examples/rltest.c93
10 files changed, 1583 insertions, 0 deletions
diff --git a/lib/readline/examples/Inputrc b/lib/readline/examples/Inputrc
new file mode 100644
index 0000000..a358bc4
--- /dev/null
+++ b/lib/readline/examples/Inputrc
@@ -0,0 +1,81 @@
+# My ~/.inputrc file is in -*- text -*- for easy editing with Emacs.
+#
+# Notice the various bindings which are conditionalized depending
+# on which program is running, or what terminal is active.
+#
+
+# Copyright (C) 1989-2009 Free Software Foundation, Inc.
+#
+# This 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# In all programs, all terminals, make sure this is bound.
+"\C-x\C-r": re-read-init-file
+
+# Hp terminals (and some others) have ugly default behaviour for C-h.
+"\C-h": backward-delete-char
+"\e\C-h": backward-kill-word
+"\C-xd": dump-functions
+
+# In xterm windows, make the arrow keys do the right thing.
+$if TERM=xterm
+"\e[A": previous-history
+"\e[B": next-history
+"\e[C": forward-char
+"\e[D": backward-char
+
+# alternate arrow key prefix
+"\eOA": previous-history
+"\eOB": next-history
+"\eOC": forward-char
+"\eOD": backward-char
+
+# Under Xterm in Bash, we bind local Function keys to do something useful.
+$if Bash
+"\e[11~": "Function Key 1"
+"\e[12~": "Function Key 2"
+"\e[13~": "Function Key 3"
+"\e[14~": "Function Key 4"
+"\e[15~": "Function Key 5"
+
+# I know the following escape sequence numbers are 1 greater than
+# the function key. Don't ask me why, I didn't design the xterm terminal.
+"\e[17~": "Function Key 6"
+"\e[18~": "Function Key 7"
+"\e[19~": "Function Key 8"
+"\e[20~": "Function Key 9"
+"\e[21~": "Function Key 10"
+$endif
+$endif
+
+# For Bash, all terminals, add some Bash specific hacks.
+$if Bash
+"\C-xv": show-bash-version
+"\C-x\C-e": shell-expand-line
+
+# Here is one for editing my path.
+"\C-xp": "$PATH\C-x\C-e\C-e\"\C-aPATH=\":\C-b"
+
+# Make C-x r read my mail in emacs.
+# "\C-xr": "emacs -f rmail\C-j"
+$endif
+
+# For FTP, different hacks:
+$if Ftp
+"\C-xg": "get \M-?"
+"\C-xt": "put \M-?"
+"\M-.": yank-last-arg
+$endif
+
+" ": self-insert
diff --git a/lib/readline/examples/Makefile b/lib/readline/examples/Makefile
new file mode 100644
index 0000000..2df2240
--- /dev/null
+++ b/lib/readline/examples/Makefile
@@ -0,0 +1,44 @@
+# This is the Makefile for the examples subdirectory of readline. -*- text -*-
+#
+# Copyright (C) 1994 Free Software Foundation, Inc.
+
+# This 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+EXECUTABLES = fileman rltest rl
+CFLAGS = -g -I../.. -I.. -DREADLINE_LIBRARY
+LDFLAGS = -g -L..
+
+.c.o:
+ $(CC) $(CFLAGS) -c $<
+
+all: $(EXECUTABLES)
+
+
+rl: rl.o
+ $(CC) $(LDFLAGS) -o $@ rl.o -lreadline -ltermcap
+
+fileman: fileman.o
+ $(CC) $(LDFLAGS) -o $@ fileman.o -lreadline -ltermcap
+
+rltest: rltest.o
+ $(CC) $(LDFLAGS) -o $@ rltest.o -lreadline -ltermcap
+
+rlcat: rlcat.o
+ $(CC) $(LDFLAGS) -o $@ rlcat.o -lreadline -ltermcap
+
+fileman.o: fileman.c
+rltest.o: rltest.c
+rl.o: rl.c
+rlcat.o: rlcat.c
diff --git a/lib/readline/examples/excallback.c b/lib/readline/examples/excallback.c
new file mode 100644
index 0000000..4206acf
--- /dev/null
+++ b/lib/readline/examples/excallback.c
@@ -0,0 +1,196 @@
+/*
+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
+*/
+/*
+Copyright (C) 1999 Jeff Solomon
+*/
+
+#if defined (HAVE_CONFIG_H)
+#include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <stdlib.h>
+
+#include <stdio.h>
+#include <termios.h> /* xxx - should make this more general */
+
+#ifdef READLINE_LIBRARY
+# include "readline.h"
+#else
+# include <readline/readline.h>
+#endif
+
+#ifndef STDIN_FILENO
+# define STDIN_FILENO 0
+#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);
+ }
+
+ free (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;
+}
diff --git a/lib/readline/examples/fileman.c b/lib/readline/examples/fileman.c
new file mode 100644
index 0000000..2a8b097
--- /dev/null
+++ b/lib/readline/examples/fileman.c
@@ -0,0 +1,506 @@
+/* fileman.c - file manager example for readline library. */
+
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library for
+ reading lines of text with interactive input and history editing.
+
+ Readline 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 3 of the License, or
+ (at your option) any later version.
+
+ Readline 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.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* fileman.c -- A tiny application which demonstrates how to use the
+ GNU Readline library. This application interactively allows users
+ to manipulate files and their modes. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <sys/types.h>
+#ifdef HAVE_SYS_FILE_H
+# include <sys/file.h>
+#endif
+#include <sys/stat.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <errno.h>
+
+#if defined (HAVE_STRING_H)
+# include <string.h>
+#else /* !HAVE_STRING_H */
+# include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include <time.h>
+
+#ifdef READLINE_LIBRARY
+# include "readline.h"
+# include "history.h"
+#else
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
+
+extern char *xmalloc PARAMS((size_t));
+
+void initialize_readline PARAMS((void));
+void too_dangerous PARAMS((char *));
+
+int execute_line PARAMS((char *));
+int valid_argument PARAMS((char *, char *));
+
+/* The names of functions that actually do the manipulation. */
+int com_list PARAMS((char *));
+int com_view PARAMS((char *));
+int com_rename PARAMS((char *));
+int com_stat PARAMS((char *));
+int com_pwd PARAMS((char *));
+int com_delete PARAMS((char *));
+int com_help PARAMS((char *));
+int com_cd PARAMS((char *));
+int com_quit PARAMS((char *));
+
+/* A structure which contains information on the commands this program
+ can understand. */
+
+typedef struct {
+ char *name; /* User printable name of the function. */
+ rl_icpfunc_t *func; /* Function to call to do the job. */
+ char *doc; /* Documentation for this function. */
+} COMMAND;
+
+COMMAND commands[] = {
+ { "cd", com_cd, "Change to directory DIR" },
+ { "delete", com_delete, "Delete FILE" },
+ { "help", com_help, "Display this text" },
+ { "?", com_help, "Synonym for `help'" },
+ { "list", com_list, "List files in DIR" },
+ { "ls", com_list, "Synonym for `list'" },
+ { "pwd", com_pwd, "Print the current working directory" },
+ { "quit", com_quit, "Quit using Fileman" },
+ { "rename", com_rename, "Rename FILE to NEWNAME" },
+ { "stat", com_stat, "Print out statistics on FILE" },
+ { "view", com_view, "View the contents of FILE" },
+ { (char *)NULL, (rl_icpfunc_t *)NULL, (char *)NULL }
+};
+
+/* Forward declarations. */
+char *stripwhite ();
+COMMAND *find_command ();
+
+/* The name of this program, as taken from argv[0]. */
+char *progname;
+
+/* When non-zero, this global means the user is done using this program. */
+int done;
+
+char *
+dupstr (s)
+ char *s;
+{
+ char *r;
+
+ r = xmalloc (strlen (s) + 1);
+ strcpy (r, s);
+ return (r);
+}
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ char *line, *s;
+
+ progname = argv[0];
+
+ initialize_readline (); /* Bind our completer. */
+
+ /* Loop reading and executing lines until the user quits. */
+ for ( ; done == 0; )
+ {
+ line = readline ("FileMan: ");
+
+ if (!line)
+ break;
+
+ /* Remove leading and trailing whitespace from the line.
+ Then, if there is anything left, add it to the history list
+ and execute it. */
+ s = stripwhite (line);
+
+ if (*s)
+ {
+ add_history (s);
+ execute_line (s);
+ }
+
+ free (line);
+ }
+ exit (0);
+}
+
+/* Execute a command line. */
+int
+execute_line (line)
+ char *line;
+{
+ register int i;
+ COMMAND *command;
+ char *word;
+
+ /* Isolate the command word. */
+ i = 0;
+ while (line[i] && whitespace (line[i]))
+ i++;
+ word = line + i;
+
+ while (line[i] && !whitespace (line[i]))
+ i++;
+
+ if (line[i])
+ line[i++] = '\0';
+
+ command = find_command (word);
+
+ if (!command)
+ {
+ fprintf (stderr, "%s: No such command for FileMan.\n", word);
+ return (-1);
+ }
+
+ /* Get argument to command, if any. */
+ while (whitespace (line[i]))
+ i++;
+
+ word = line + i;
+
+ /* Call the function. */
+ return ((*(command->func)) (word));
+}
+
+/* Look up NAME as the name of a command, and return a pointer to that
+ command. Return a NULL pointer if NAME isn't a command name. */
+COMMAND *
+find_command (name)
+ char *name;
+{
+ register int i;
+
+ for (i = 0; commands[i].name; i++)
+ if (strcmp (name, commands[i].name) == 0)
+ return (&commands[i]);
+
+ return ((COMMAND *)NULL);
+}
+
+/* Strip whitespace from the start and end of STRING. Return a pointer
+ into STRING. */
+char *
+stripwhite (string)
+ char *string;
+{
+ register char *s, *t;
+
+ for (s = string; whitespace (*s); s++)
+ ;
+
+ if (*s == 0)
+ return (s);
+
+ t = s + strlen (s) - 1;
+ while (t > s && whitespace (*t))
+ t--;
+ *++t = '\0';
+
+ return s;
+}
+
+/* **************************************************************** */
+/* */
+/* Interface to Readline Completion */
+/* */
+/* **************************************************************** */
+
+char *command_generator PARAMS((const char *, int));
+char **fileman_completion PARAMS((const char *, int, int));
+
+/* Tell the GNU Readline library how to complete. We want to try to complete
+ on command names if this is the first word in the line, or on filenames
+ if not. */
+void
+initialize_readline ()
+{
+ /* Allow conditional parsing of the ~/.inputrc file. */
+ rl_readline_name = "FileMan";
+
+ /* Tell the completer that we want a crack first. */
+ rl_attempted_completion_function = fileman_completion;
+}
+
+/* Attempt to complete on the contents of TEXT. START and END bound the
+ region of rl_line_buffer that contains the word to complete. TEXT is
+ the word to complete. We can use the entire contents of rl_line_buffer
+ in case we want to do some simple parsing. Return the array of matches,
+ or NULL if there aren't any. */
+char **
+fileman_completion (text, start, end)
+ const char *text;
+ int start, end;
+{
+ char **matches;
+
+ matches = (char **)NULL;
+
+ /* If this word is at the start of the line, then it is a command
+ to complete. Otherwise it is the name of a file in the current
+ directory. */
+ if (start == 0)
+ matches = rl_completion_matches (text, command_generator);
+
+ return (matches);
+}
+
+/* Generator function for command completion. STATE lets us know whether
+ to start from scratch; without any state (i.e. STATE == 0), then we
+ start at the top of the list. */
+char *
+command_generator (text, state)
+ const char *text;
+ int state;
+{
+ static int list_index, len;
+ char *name;
+
+ /* If this is a new word to complete, initialize now. This includes
+ saving the length of TEXT for efficiency, and initializing the index
+ variable to 0. */
+ if (!state)
+ {
+ list_index = 0;
+ len = strlen (text);
+ }
+
+ /* Return the next name which partially matches from the command list. */
+ while (name = commands[list_index].name)
+ {
+ list_index++;
+
+ if (strncmp (name, text, len) == 0)
+ return (dupstr(name));
+ }
+
+ /* If no names matched, then return NULL. */
+ return ((char *)NULL);
+}
+
+/* **************************************************************** */
+/* */
+/* FileMan Commands */
+/* */
+/* **************************************************************** */
+
+/* String to pass to system (). This is for the LIST, VIEW and RENAME
+ commands. */
+static char syscom[1024];
+
+/* List the file(s) named in arg. */
+int
+com_list (arg)
+ char *arg;
+{
+ if (!arg)
+ arg = "";
+
+ sprintf (syscom, "ls -FClg %s", arg);
+ return (system (syscom));
+}
+
+int
+com_view (arg)
+ char *arg;
+{
+ if (!valid_argument ("view", arg))
+ return 1;
+
+#if defined (__MSDOS__)
+ /* more.com doesn't grok slashes in pathnames */
+ sprintf (syscom, "less %s", arg);
+#else
+ sprintf (syscom, "more %s", arg);
+#endif
+ return (system (syscom));
+}
+
+int
+com_rename (arg)
+ char *arg;
+{
+ too_dangerous ("rename");
+ return (1);
+}
+
+int
+com_stat (arg)
+ char *arg;
+{
+ struct stat finfo;
+
+ if (!valid_argument ("stat", arg))
+ return (1);
+
+ if (stat (arg, &finfo) == -1)
+ {
+ perror (arg);
+ return (1);
+ }
+
+ printf ("Statistics for `%s':\n", arg);
+
+ printf ("%s has %d link%s, and is %lu byte%s in length.\n",
+ arg,
+ finfo.st_nlink,
+ (finfo.st_nlink == 1) ? "" : "s",
+ (unsigned long)finfo.st_size,
+ (finfo.st_size == 1) ? "" : "s");
+ printf ("Inode Last Change at: %s", ctime (&finfo.st_ctime));
+ printf (" Last access at: %s", ctime (&finfo.st_atime));
+ printf (" Last modified at: %s", ctime (&finfo.st_mtime));
+ return (0);
+}
+
+int
+com_delete (arg)
+ char *arg;
+{
+ too_dangerous ("delete");
+ return (1);
+}
+
+/* Print out help for ARG, or for all of the commands if ARG is
+ not present. */
+int
+com_help (arg)
+ char *arg;
+{
+ register int i;
+ int printed = 0;
+
+ for (i = 0; commands[i].name; i++)
+ {
+ if (!*arg || (strcmp (arg, commands[i].name) == 0))
+ {
+ printf ("%s\t\t%s.\n", commands[i].name, commands[i].doc);
+ printed++;
+ }
+ }
+
+ if (!printed)
+ {
+ printf ("No commands match `%s'. Possibilities are:\n", arg);
+
+ for (i = 0; commands[i].name; i++)
+ {
+ /* Print in six columns. */
+ if (printed == 6)
+ {
+ printed = 0;
+ printf ("\n");
+ }
+
+ printf ("%s\t", commands[i].name);
+ printed++;
+ }
+
+ if (printed)
+ printf ("\n");
+ }
+ return (0);
+}
+
+/* Change to the directory ARG. */
+int
+com_cd (arg)
+ char *arg;
+{
+ if (chdir (arg) == -1)
+ {
+ perror (arg);
+ return 1;
+ }
+
+ com_pwd ("");
+ return (0);
+}
+
+/* Print out the current working directory. */
+int
+com_pwd (ignore)
+ char *ignore;
+{
+ char dir[1024], *s;
+
+ s = getcwd (dir, sizeof(dir) - 1);
+ if (s == 0)
+ {
+ printf ("Error getting pwd: %s\n", dir);
+ return 1;
+ }
+
+ printf ("Current directory is %s\n", dir);
+ return 0;
+}
+
+/* The user wishes to quit using this program. Just set DONE non-zero. */
+int
+com_quit (arg)
+ char *arg;
+{
+ done = 1;
+ return (0);
+}
+
+/* Function which tells you that you can't do this. */
+void
+too_dangerous (caller)
+ char *caller;
+{
+ fprintf (stderr,
+ "%s: Too dangerous for me to distribute. Write it yourself.\n",
+ caller);
+}
+
+/* Return non-zero if ARG is a valid argument for CALLER, else print
+ an error message and return zero. */
+int
+valid_argument (caller, arg)
+ char *caller, *arg;
+{
+ if (!arg || !*arg)
+ {
+ fprintf (stderr, "%s: Argument required.\n", caller);
+ return (0);
+ }
+
+ return (1);
+}
diff --git a/lib/readline/examples/histexamp.c b/lib/readline/examples/histexamp.c
new file mode 100644
index 0000000..3b43674
--- /dev/null
+++ b/lib/readline/examples/histexamp.c
@@ -0,0 +1,125 @@
+/* histexamp.c - history library example program. */
+
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library for
+ reading lines of text with interactive input and history editing.
+
+ Readline 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 3 of the License, or
+ (at your option) any later version.
+
+ Readline 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.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+
+#ifdef READLINE_LIBRARY
+# include "history.h"
+#else
+# include <readline/history.h>
+#endif
+
+#include <string.h>
+
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ char line[1024], *t;
+ int len, done;
+
+ line[0] = 0;
+ done = 0;
+
+ using_history ();
+ while (!done)
+ {
+ printf ("history$ ");
+ fflush (stdout);
+ t = fgets (line, sizeof (line) - 1, stdin);
+ if (t && *t)
+ {
+ len = strlen (t);
+ if (t[len - 1] == '\n')
+ t[len - 1] = '\0';
+ }
+
+ if (!t)
+ strcpy (line, "quit");
+
+ if (line[0])
+ {
+ char *expansion;
+ int result;
+
+ using_history ();
+
+ result = history_expand (line, &expansion);
+ if (result)
+ fprintf (stderr, "%s\n", expansion);
+
+ if (result < 0 || result == 2)
+ {
+ free (expansion);
+ continue;
+ }
+
+ add_history (expansion);
+ strncpy (line, expansion, sizeof (line) - 1);
+ free (expansion);
+ }
+
+ if (strcmp (line, "quit") == 0)
+ done = 1;
+ else if (strcmp (line, "save") == 0)
+ write_history ("history_file");
+ else if (strcmp (line, "read") == 0)
+ read_history ("history_file");
+ else if (strcmp (line, "list") == 0)
+ {
+ register HIST_ENTRY **the_list;
+ register int i;
+ time_t tt;
+ char timestr[128];
+
+ the_list = history_list ();
+ if (the_list)
+ for (i = 0; the_list[i]; i++)
+ {
+ tt = history_get_time (the_list[i]);
+ if (tt)
+ strftime (timestr, sizeof (timestr), "%a %R", localtime(&tt));
+ else
+ strcpy (timestr, "??");
+ printf ("%d: %s: %s\n", i + history_base, timestr, the_list[i]->line);
+ }
+ }
+ else if (strncmp (line, "delete", 6) == 0)
+ {
+ int which;
+ if ((sscanf (line + 6, "%d", &which)) == 1)
+ {
+ HIST_ENTRY *entry = remove_history (which);
+ if (!entry)
+ fprintf (stderr, "No such entry %d\n", which);
+ else
+ {
+ free (entry->line);
+ free (entry);
+ }
+ }
+ else
+ {
+ fprintf (stderr, "non-numeric arg given to `delete'\n");
+ }
+ }
+ }
+}
diff --git a/lib/readline/examples/manexamp.c b/lib/readline/examples/manexamp.c
new file mode 100644
index 0000000..351c628
--- /dev/null
+++ b/lib/readline/examples/manexamp.c
@@ -0,0 +1,111 @@
+/* manexamp.c -- The examples which appear in the documentation are here. */
+
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library for
+ reading lines of text with interactive input and history editing.
+
+ Readline 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 3 of the License, or
+ (at your option) any later version.
+
+ Readline 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.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+#include <readline/readline.h>
+
+/* **************************************************************** */
+/* */
+/* How to Emulate gets () */
+/* */
+/* **************************************************************** */
+
+/* A static variable for holding the line. */
+static char *line_read = (char *)NULL;
+
+/* Read a string, and return a pointer to it. Returns NULL on EOF. */
+char *
+rl_gets ()
+{
+ /* If the buffer has already been allocated, return the memory
+ to the free pool. */
+ if (line_read)
+ {
+ free (line_read);
+ line_read = (char *)NULL;
+ }
+
+ /* Get a line from the user. */
+ line_read = readline ("");
+
+ /* If the line has any text in it, save it on the history. */
+ if (line_read && *line_read)
+ add_history (line_read);
+
+ return (line_read);
+}
+
+/* **************************************************************** */
+/* */
+/* Writing a Function to be Called by Readline. */
+/* */
+/* **************************************************************** */
+
+/* Invert the case of the COUNT following characters. */
+invert_case_line (count, key)
+ int count, key;
+{
+ register int start, end;
+
+ start = rl_point;
+
+ if (count < 0)
+ {
+ direction = -1;
+ count = -count;
+ }
+ else
+ direction = 1;
+
+ /* Find the end of the range to modify. */
+ end = start + (count * direction);
+
+ /* Force it to be within range. */
+ if (end > rl_end)
+ end = rl_end;
+ else if (end < 0)
+ end = -1;
+
+ if (start > end)
+ {
+ int temp = start;
+ start = end;
+ end = temp;
+ }
+
+ if (start == end)
+ return;
+
+ /* Tell readline that we are modifying the line, so save the undo
+ information. */
+ rl_modifying (start, end);
+
+ for (; start != end; start += direction)
+ {
+ if (_rl_uppercase_p (rl_line_buffer[start]))
+ rl_line_buffer[start] = _rl_to_lower (rl_line_buffer[start]);
+ else if (_rl_lowercase_p (rl_line_buffer[start]))
+ rl_line_buffer[start] = _rl_to_upper (rl_line_buffer[start]);
+ }
+
+ /* Move point to on top of the last character changed. */
+ rl_point = end - direction;
+}
diff --git a/lib/readline/examples/rl-callbacktest.c b/lib/readline/examples/rl-callbacktest.c
new file mode 100644
index 0000000..0f00e57
--- /dev/null
+++ b/lib/readline/examples/rl-callbacktest.c
@@ -0,0 +1,90 @@
+/* Standard include files. stdio.h is required. */
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+/* Used for select(2) */
+#include <sys/types.h>
+#include <sys/select.h>
+
+#include <errno.h>
+#include <stdio.h>
+
+/* Standard readline include files. */
+#if defined (READLINE_LIBRARY)
+# include "readline.h"
+# include "history.h"
+#else
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
+
+extern int errno;
+
+static void cb_linehandler (char *);
+
+int running;
+const char *prompt = "rltest$ ";
+
+/* Callback function called for each line when accept-line executed, EOF
+ seen, or EOF character read. This sets a flag and returns; it could
+ also call exit(3). */
+static void
+cb_linehandler (char *line)
+{
+ /* Can use ^D (stty eof) or `exit' to exit. */
+ if (line == NULL || strcmp (line, "exit") == 0)
+ {
+ if (line == 0)
+ printf ("\n");
+ printf ("exit\n");
+ /* This function needs to be called to reset the terminal settings,
+ and calling it from the line handler keeps one extra prompt from
+ being displayed. */
+ rl_callback_handler_remove ();
+
+ running = 0;
+ }
+ else
+ {
+ if (*line)
+ add_history (line);
+ printf ("input line: %s\n", line);
+ free (line);
+ }
+}
+
+int
+main (int c, char **v)
+{
+ fd_set fds;
+ int r;
+
+ /* Install the line handler. */
+ rl_callback_handler_install (prompt, cb_linehandler);
+
+ /* Enter a simple event loop. This waits until something is available
+ to read on readline's input stream (defaults to standard input) and
+ calls the builtin character read callback to read it. It does not
+ have to modify the user's terminal settings. */
+ running = 1;
+ while (running)
+ {
+ FD_ZERO (&fds);
+ FD_SET (fileno (rl_instream), &fds);
+
+ r = select (FD_SETSIZE, &fds, NULL, NULL, NULL);
+ if (r < 0 && errno != EINTR)
+ {
+ perror ("rltest: select");
+ rl_callback_handler_remove ();
+ break;
+ }
+
+ if (FD_ISSET (fileno (rl_instream), &fds))
+ rl_callback_read_char ();
+ }
+
+ printf ("rltest: Event loop has exited\n");
+ return 0;
+}
diff --git a/lib/readline/examples/rl.c b/lib/readline/examples/rl.c
new file mode 100644
index 0000000..a5cf276
--- /dev/null
+++ b/lib/readline/examples/rl.c
@@ -0,0 +1,158 @@
+/*
+ * rl - command-line interface to read a line from the standard input
+ * (or another fd) using readline.
+ *
+ * usage: rl [-p prompt] [-u unit] [-d default] [-n nchars]
+ */
+
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library for
+ reading lines of text with interactive input and history editing.
+
+ Readline 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 3 of the License, or
+ (at your option) any later version.
+
+ Readline 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.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
+#endif
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+extern void exit();
+#endif
+
+#if defined (READLINE_LIBRARY)
+# include "posixstat.h"
+# include "readline.h"
+# include "history.h"
+#else
+# include <sys/stat.h>
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
+
+extern int optind;
+extern char *optarg;
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strrchr();
+#endif
+
+static char *progname;
+static char *deftext;
+
+static int
+set_deftext ()
+{
+ if (deftext)
+ {
+ rl_insert_text (deftext);
+ deftext = (char *)NULL;
+ rl_startup_hook = (rl_hook_func_t *)NULL;
+ }
+ return 0;
+}
+
+static void
+usage()
+{
+ fprintf (stderr, "%s: usage: %s [-p prompt] [-u unit] [-d default] [-n nchars]\n",
+ progname, progname);
+}
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ char *temp, *prompt;
+ struct stat sb;
+ int opt, fd, nch;
+ FILE *ifp;
+
+ progname = strrchr(argv[0], '/');
+ if (progname == 0)
+ progname = argv[0];
+ else
+ progname++;
+
+ /* defaults */
+ prompt = "readline$ ";
+ fd = nch = 0;
+ deftext = (char *)0;
+
+ while ((opt = getopt(argc, argv, "p:u:d:n:")) != EOF)
+ {
+ switch (opt)
+ {
+ case 'p':
+ prompt = optarg;
+ break;
+ case 'u':
+ fd = atoi(optarg);
+ if (fd < 0)
+ {
+ fprintf (stderr, "%s: bad file descriptor `%s'\n", progname, optarg);
+ exit (2);
+ }
+ break;
+ case 'd':
+ deftext = optarg;
+ break;
+ case 'n':
+ nch = atoi(optarg);
+ if (nch < 0)
+ {
+ fprintf (stderr, "%s: bad value for -n: `%s'\n", progname, optarg);
+ exit (2);
+ }
+ break;
+ default:
+ usage ();
+ exit (2);
+ }
+ }
+
+ if (fd != 0)
+ {
+ if (fstat (fd, &sb) < 0)
+ {
+ fprintf (stderr, "%s: %d: bad file descriptor\n", progname, fd);
+ exit (1);
+ }
+ ifp = fdopen (fd, "r");
+ rl_instream = ifp;
+ }
+
+ if (deftext && *deftext)
+ rl_startup_hook = set_deftext;
+
+ if (nch > 0)
+ rl_num_chars_to_read = nch;
+
+ temp = readline (prompt);
+
+ /* Test for EOF. */
+ if (temp == 0)
+ exit (1);
+
+ printf ("%s\n", temp);
+ exit (0);
+}
diff --git a/lib/readline/examples/rlcat.c b/lib/readline/examples/rlcat.c
new file mode 100644
index 0000000..b494241
--- /dev/null
+++ b/lib/readline/examples/rlcat.c
@@ -0,0 +1,179 @@
+/*
+ * rlcat - cat(1) using readline
+ *
+ * usage: rlcat
+ */
+
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library for
+ reading lines of text with interactive input and history editing.
+
+ Readline 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 3 of the License, or
+ (at your option) any later version.
+
+ Readline 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.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include <sys/types.h>
+#include "posixstat.h"
+
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+extern void exit();
+#endif
+
+#ifndef errno
+extern int errno;
+#endif
+
+#if defined (READLINE_LIBRARY)
+# include "readline.h"
+# include "history.h"
+#else
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
+
+extern int optind;
+extern char *optarg;
+
+static int stdcat();
+
+static char *progname;
+static int vflag;
+
+static void
+usage()
+{
+ fprintf (stderr, "%s: usage: %s [-vEVN] [filename]\n", progname, progname);
+}
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ char *temp;
+ int opt, Vflag, Nflag;
+
+ progname = strrchr(argv[0], '/');
+ if (progname == 0)
+ progname = argv[0];
+ else
+ progname++;
+
+ vflag = Vflag = Nflag = 0;
+ while ((opt = getopt(argc, argv, "vEVN")) != EOF)
+ {
+ switch (opt)
+ {
+ case 'v':
+ vflag = 1;
+ break;
+ case 'V':
+ Vflag = 1;
+ break;
+ case 'E':
+ Vflag = 0;
+ break;
+ case 'N':
+ Nflag = 1;
+ break;
+ default:
+ usage ();
+ exit (2);
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ if (isatty(0) == 0 || argc || Nflag)
+ return stdcat(argc, argv);
+
+ rl_variable_bind ("editing-mode", Vflag ? "vi" : "emacs");
+ while (temp = readline (""))
+ {
+ if (*temp)
+ add_history (temp);
+ printf ("%s\n", temp);
+ }
+
+ return (ferror (stdout));
+}
+
+static int
+fcopy(fp)
+ FILE *fp;
+{
+ int c;
+ char *x;
+
+ while ((c = getc(fp)) != EOF)
+ {
+ if (vflag && isascii ((unsigned char)c) && isprint((unsigned char)c) == 0)
+ {
+ x = rl_untranslate_keyseq (c);
+ if (fputs (x, stdout) == EOF)
+ return 1;
+ }
+ else if (putchar (c) == EOF)
+ return 1;
+ }
+ return (ferror (stdout));
+}
+
+int
+stdcat (argc, argv)
+ int argc;
+ char **argv;
+{
+ int i, fd, r;
+ char *s;
+ FILE *fp;
+
+ if (argc == 0)
+ return (fcopy(stdin));
+
+ for (i = 0, r = 1; i < argc; i++)
+ {
+ if (*argv[i] == '-' && argv[i][1] == 0)
+ fp = stdin;
+ else
+ {
+ fp = fopen (argv[i], "r");
+ if (fp == 0)
+ {
+ fprintf (stderr, "%s: %s: cannot open: %s\n", progname, argv[i], strerror(errno));
+ continue;
+ }
+ }
+ r = fcopy (fp);
+ if (fp != stdin)
+ fclose(fp);
+ }
+ return r;
+}
diff --git a/lib/readline/examples/rltest.c b/lib/readline/examples/rltest.c
new file mode 100644
index 0000000..65abe87
--- /dev/null
+++ b/lib/readline/examples/rltest.c
@@ -0,0 +1,93 @@
+/* **************************************************************** */
+/* */
+/* Testing Readline */
+/* */
+/* **************************************************************** */
+
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library for
+ reading lines of text with interactive input and history editing.
+
+ Readline 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 3 of the License, or
+ (at your option) any later version.
+
+ Readline 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.
+
+ You should have received a copy of the GNU General Public License
+ along with Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if defined (HAVE_CONFIG_H)
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+extern void exit();
+#endif
+
+#ifdef READLINE_LIBRARY
+# include "readline.h"
+# include "history.h"
+#else
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
+
+extern HIST_ENTRY **history_list ();
+
+int
+main ()
+{
+ char *temp, *prompt;
+ int done;
+
+ temp = (char *)NULL;
+ prompt = "readline$ ";
+ done = 0;
+
+ while (!done)
+ {
+ temp = readline (prompt);
+
+ /* Test for EOF. */
+ if (!temp)
+ exit (1);
+
+ /* If there is anything on the line, print it and remember it. */
+ if (*temp)
+ {
+ fprintf (stderr, "%s\r\n", temp);
+ add_history (temp);
+ }
+
+ /* Check for `command' that we handle. */
+ if (strcmp (temp, "quit") == 0)
+ done = 1;
+
+ if (strcmp (temp, "list") == 0)
+ {
+ HIST_ENTRY **list;
+ register int i;
+
+ list = history_list ();
+ if (list)
+ {
+ for (i = 0; list[i]; i++)
+ fprintf (stderr, "%d: %s\r\n", i, list[i]->line);
+ }
+ }
+ free (temp);
+ }
+ exit (0);
+}