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+This file is bind.def, from which is created bind.c.
+It implements the builtin "bind" in Bash.
+
+Copyright (C) 1987-2015 Free Software Foundation, Inc.
+
+This file is part of GNU Bash, the Bourne Again SHell.
+
+Bash 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.
+
+Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
+
+$PRODUCES bind.c
+
+#include <config.h>
+
+$BUILTIN bind
+$DEPENDS_ON READLINE
+$FUNCTION bind_builtin
+$SHORT_DOC bind [-lpsvPSVX] [-m keymap] [-f filename] [-q name] [-u name] [-r keyseq] [-x keyseq:shell-command] [keyseq:readline-function or readline-command]
+Set Readline key bindings and variables.
+
+Bind a key sequence to a Readline function or a macro, or set a
+Readline variable. The non-option argument syntax is equivalent to
+that found in ~/.inputrc, but must be passed as a single argument:
+e.g., bind '"\C-x\C-r": re-read-init-file'.
+
+Options:
+ -m keymap Use KEYMAP as the keymap for the duration of this
+ command. Acceptable keymap names are emacs,
+ emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move,
+ vi-command, and vi-insert.
+ -l List names of functions.
+ -P List function names and bindings.
+ -p List functions and bindings in a form that can be
+ reused as input.
+ -S List key sequences that invoke macros and their values
+ -s List key sequences that invoke macros and their values
+ in a form that can be reused as input.
+ -V List variable names and values
+ -v List variable names and values in a form that can
+ be reused as input.
+ -q function-name Query about which keys invoke the named function.
+ -u function-name Unbind all keys which are bound to the named function.
+ -r keyseq Remove the binding for KEYSEQ.
+ -f filename Read key bindings from FILENAME.
+ -x keyseq:shell-command Cause SHELL-COMMAND to be executed when
+ KEYSEQ is entered.
+ -X List key sequences bound with -x and associated commands
+ in a form that can be reused as input.
+
+Exit Status:
+bind returns 0 unless an unrecognized option is given or an error occurs.
+$END
+
+#if defined (READLINE)
+
+#if defined (HAVE_UNISTD_H)
+# ifdef _MINIX
+# include <sys/types.h>
+# endif
+# include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+#include <readline/readline.h>
+#include <readline/history.h>
+
+#include "../bashintl.h"
+
+#include "../shell.h"
+#include "../bashline.h"
+#include "bashgetopt.h"
+#include "common.h"
+
+static int query_bindings __P((char *));
+static int unbind_command __P((char *));
+static int unbind_keyseq __P((char *));
+
+#define BIND_RETURN(x) do { return_code = x; goto bind_exit; } while (0)
+
+#define LFLAG 0x0001
+#define PFLAG 0x0002
+#define FFLAG 0x0004
+#define VFLAG 0x0008
+#define QFLAG 0x0010
+#define MFLAG 0x0020
+#define RFLAG 0x0040
+#define PPFLAG 0x0080
+#define VVFLAG 0x0100
+#define SFLAG 0x0200
+#define SSFLAG 0x0400
+#define UFLAG 0x0800
+#define XFLAG 0x1000
+#define XXFLAG 0x2000
+
+int
+bind_builtin (list)
+ WORD_LIST *list;
+{
+ int return_code;
+ Keymap kmap, saved_keymap;
+ int flags, opt;
+ char *initfile, *map_name, *fun_name, *unbind_name, *remove_seq, *cmd_seq, *t;
+
+ if (no_line_editing)
+ {
+#if 0
+ builtin_error (_("line editing not enabled"));
+ return (EXECUTION_FAILURE);
+#else
+ builtin_warning (_("line editing not enabled"));
+#endif
+ }
+
+ kmap = saved_keymap = (Keymap) NULL;
+ flags = 0;
+ initfile = map_name = fun_name = unbind_name = remove_seq = cmd_seq = (char *)NULL;
+ return_code = EXECUTION_SUCCESS;
+
+ if (bash_readline_initialized == 0)
+ initialize_readline ();
+
+ begin_unwind_frame ("bind_builtin");
+ unwind_protect_var (rl_outstream);
+
+ rl_outstream = stdout;
+
+ reset_internal_getopt ();
+ while ((opt = internal_getopt (list, "lvpVPsSXf:q:u:m:r:x:")) != -1)
+ {
+ switch (opt)
+ {
+ case 'l':
+ flags |= LFLAG;
+ break;
+ case 'v':
+ flags |= VFLAG;
+ break;
+ case 'p':
+ flags |= PFLAG;
+ break;
+ case 'f':
+ flags |= FFLAG;
+ initfile = list_optarg;
+ break;
+ case 'm':
+ flags |= MFLAG;
+ map_name = list_optarg;
+ break;
+ case 'q':
+ flags |= QFLAG;
+ fun_name = list_optarg;
+ break;
+ case 'u':
+ flags |= UFLAG;
+ unbind_name = list_optarg;
+ break;
+ case 'r':
+ flags |= RFLAG;
+ remove_seq = list_optarg;
+ break;
+ case 'V':
+ flags |= VVFLAG;
+ break;
+ case 'P':
+ flags |= PPFLAG;
+ break;
+ case 's':
+ flags |= SFLAG;
+ break;
+ case 'S':
+ flags |= SSFLAG;
+ break;
+ case 'x':
+ flags |= XFLAG;
+ cmd_seq = list_optarg;
+ break;
+ case 'X':
+ flags |= XXFLAG;
+ break;
+ CASE_HELPOPT;
+ default:
+ builtin_usage ();
+ BIND_RETURN (EX_USAGE);
+ }
+ }
+
+ list = loptend;
+
+ /* First, see if we need to install a special keymap for this
+ command. Then start on the arguments. */
+
+ if ((flags & MFLAG) && map_name)
+ {
+ kmap = rl_get_keymap_by_name (map_name);
+ if (kmap == 0)
+ {
+ builtin_error (_("`%s': invalid keymap name"), map_name);
+ BIND_RETURN (EXECUTION_FAILURE);
+ }
+ }
+
+ if (kmap)
+ {
+ saved_keymap = rl_get_keymap ();
+ rl_set_keymap (kmap);
+ }
+
+ /* XXX - we need to add exclusive use tests here. It doesn't make sense
+ to use some of these options together. */
+ /* Now hack the option arguments */
+ if (flags & LFLAG)
+ rl_list_funmap_names ();
+
+ if (flags & PFLAG)
+ rl_function_dumper (1);
+
+ if (flags & PPFLAG)
+ rl_function_dumper (0);
+
+ if (flags & SFLAG)
+ rl_macro_dumper (1);
+
+ if (flags & SSFLAG)
+ rl_macro_dumper (0);
+
+ if (flags & VFLAG)
+ rl_variable_dumper (1);
+
+ if (flags & VVFLAG)
+ rl_variable_dumper (0);
+
+ if ((flags & FFLAG) && initfile)
+ {
+ if (rl_read_init_file (initfile) != 0)
+ {
+ t = printable_filename (initfile, 0);
+ builtin_error (_("%s: cannot read: %s"), t, strerror (errno));
+ if (t != initfile)
+ free (t);
+ BIND_RETURN (EXECUTION_FAILURE);
+ }
+ }
+
+ if ((flags & QFLAG) && fun_name)
+ return_code = query_bindings (fun_name);
+
+ if ((flags & UFLAG) && unbind_name)
+ return_code = unbind_command (unbind_name);
+
+ if ((flags & RFLAG) && remove_seq)
+ {
+ opt = unbind_keyseq (remove_seq);
+ BIND_RETURN (opt);
+ }
+
+ if (flags & XFLAG)
+ return_code = bind_keyseq_to_unix_command (cmd_seq);
+
+ if (flags & XXFLAG)
+ return_code = print_unix_command_map ();
+
+ /* Process the rest of the arguments as binding specifications. */
+ while (list)
+ {
+ rl_parse_and_bind (list->word->word);
+ list = list->next;
+ }
+
+ bind_exit:
+ if (saved_keymap)
+ rl_set_keymap (saved_keymap);
+
+ run_unwind_frame ("bind_builtin");
+
+ return (sh_chkwrite (return_code));
+}
+
+static int
+query_bindings (name)
+ char *name;
+{
+ rl_command_func_t *function;
+ char **keyseqs;
+ int j;
+
+ function = rl_named_function (name);
+ if (function == 0)
+ {
+ builtin_error (_("`%s': unknown function name"), name);
+ return EXECUTION_FAILURE;
+ }
+
+ keyseqs = rl_invoking_keyseqs (function);
+
+ if (!keyseqs)
+ {
+ printf (_("%s is not bound to any keys.\n"), name);
+ return EXECUTION_FAILURE;
+ }
+
+ printf (_("%s can be invoked via "), name);
+ for (j = 0; j < 5 && keyseqs[j]; j++)
+ printf ("\"%s\"%s", keyseqs[j], keyseqs[j + 1] ? ", " : ".\n");
+ if (keyseqs[j])
+ printf ("...\n");
+ strvec_dispose (keyseqs);
+ return EXECUTION_SUCCESS;
+}
+
+static int
+unbind_command (name)
+ char *name;
+{
+ rl_command_func_t *function;
+
+ function = rl_named_function (name);
+ if (function == 0)
+ {
+ builtin_error (_("`%s': unknown function name"), name);
+ return EXECUTION_FAILURE;
+ }
+
+ rl_unbind_function_in_map (function, rl_get_keymap ());
+ return EXECUTION_SUCCESS;
+}
+
+static int
+unbind_keyseq (seq)
+ char *seq;
+{
+ char *kseq;
+ int kslen;
+
+ kseq = (char *)xmalloc ((2 * strlen (seq)) + 1);
+ if (rl_translate_keyseq (seq, kseq, &kslen))
+ {
+ free (kseq);
+ builtin_error (_("`%s': cannot unbind"), seq);
+ return EXECUTION_FAILURE;
+ }
+ if (rl_function_of_keyseq (kseq, (Keymap)0, (int *)0) == 0)
+ {
+ free (kseq);
+ return (EXECUTION_SUCCESS);
+ }
+
+ /* I wish this didn't have to translate the key sequence again, but readline
+ doesn't have a binding function that takes a translated key sequence as
+ an argument. */
+ if (rl_bind_keyseq (seq, (rl_command_func_t *)NULL) != 0)
+ {
+ free (kseq);
+ builtin_error (_("`%s': cannot unbind"), seq);
+ return (EXECUTION_FAILURE);
+ }
+
+ free (kseq);
+ return (EXECUTION_SUCCESS);
+}
+#endif /* READLINE */
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