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-rw-r--r--lib/readline/bind.c2970
1 files changed, 2970 insertions, 0 deletions
diff --git a/lib/readline/bind.c b/lib/readline/bind.c
new file mode 100644
index 0000000..87596dc
--- /dev/null
+++ b/lib/readline/bind.c
@@ -0,0 +1,2970 @@
+/* bind.c -- key binding and startup file support for the readline library. */
+
+/* Copyright (C) 1987-2020 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/>.
+*/
+
+#define READLINE_LIBRARY
+
+#if defined (__TANDEM)
+# include <floss.h>
+#endif
+
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+# include <sys/file.h>
+#endif /* HAVE_SYS_FILE_H */
+
+#if defined (HAVE_UNISTD_H)
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <errno.h>
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+#include "posixstat.h"
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#include "rlprivate.h"
+#include "rlshell.h"
+#include "xmalloc.h"
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+/* Variables exported by this file. */
+Keymap rl_binding_keymap;
+
+static int _rl_skip_to_delim PARAMS((char *, int, int));
+
+#if defined (USE_VARARGS) && defined (PREFER_STDARG)
+static void _rl_init_file_error (const char *, ...) __attribute__((__format__ (printf, 1, 2)));
+#else
+static void _rl_init_file_error ();
+#endif
+
+static rl_command_func_t *_rl_function_of_keyseq_internal PARAMS((const char *, size_t, Keymap, int *));
+
+static char *_rl_read_file PARAMS((char *, size_t *));
+static int _rl_read_init_file PARAMS((const char *, int));
+static int glean_key_from_name PARAMS((char *));
+
+static int find_boolean_var PARAMS((const char *));
+static int find_string_var PARAMS((const char *));
+
+static const char *boolean_varname PARAMS((int));
+static const char *string_varname PARAMS((int));
+
+static char *_rl_get_string_variable_value PARAMS((const char *));
+static int substring_member_of_array PARAMS((const char *, const char * const *));
+
+static int _rl_get_keymap_by_name PARAMS((const char *));
+static int _rl_get_keymap_by_map PARAMS((Keymap));
+
+static int currently_reading_init_file;
+
+/* used only in this file */
+static int _rl_prefer_visible_bell = 1;
+
+#define OP_EQ 1
+#define OP_NE 2
+#define OP_GT 3
+#define OP_GE 4
+#define OP_LT 5
+#define OP_LE 6
+
+#define OPSTART(c) ((c) == '=' || (c) == '!' || (c) == '<' || (c) == '>')
+#define CMPSTART(c) ((c) == '=' || (c) == '!')
+
+/* **************************************************************** */
+/* */
+/* Binding keys */
+/* */
+/* **************************************************************** */
+
+/* rl_add_defun (char *name, rl_command_func_t *function, int key)
+ Add NAME to the list of named functions. Make FUNCTION be the function
+ that gets called. If KEY is not -1, then bind it. */
+int
+rl_add_defun (const char *name, rl_command_func_t *function, int key)
+{
+ if (key != -1)
+ rl_bind_key (key, function);
+ rl_add_funmap_entry (name, function);
+ return 0;
+}
+
+/* Bind KEY to FUNCTION. Returns non-zero if KEY is out of range. */
+int
+rl_bind_key (int key, rl_command_func_t *function)
+{
+ char keyseq[4];
+ int l;
+
+ if (key < 0 || key > largest_char)
+ return (key);
+
+ /* Want to make this a multi-character key sequence with an ESC prefix */
+ if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii)
+ {
+ if (_rl_keymap[ESC].type == ISKMAP)
+ {
+ Keymap escmap;
+
+ escmap = FUNCTION_TO_KEYMAP (_rl_keymap, ESC);
+ key = UNMETA (key);
+ escmap[key].type = ISFUNC;
+ escmap[key].function = function;
+ return (0);
+ }
+
+ /* Otherwise, let's just let rl_generic_bind handle the key sequence.
+ We start it off with ESC here and let the code below add the rest
+ of the sequence. */
+ keyseq[0] = ESC;
+ l = 1;
+ key = UNMETA(key);
+ goto bind_keyseq;
+ }
+
+ /* If it's bound to a function or macro, just overwrite. Otherwise we have
+ to treat it as a key sequence so rl_generic_bind handles shadow keymaps
+ for us. If we are binding '\' or \C-@ (NUL) make sure to escape it so
+ it makes it through the call to rl_translate_keyseq. */
+ if (_rl_keymap[key].type != ISKMAP)
+ {
+ if (_rl_keymap[key].type == ISMACR)
+ xfree ((char *)_rl_keymap[key].function);
+ _rl_keymap[key].type = ISFUNC;
+ _rl_keymap[key].function = function;
+ }
+ else
+ {
+ l = 0;
+bind_keyseq:
+ if (key == '\\')
+ {
+ keyseq[l++] = '\\';
+ keyseq[l++] = '\\';
+ }
+ else if (key == '\0')
+ {
+ keyseq[l++] = '\\';
+ keyseq[l++] = '0';
+ }
+ else
+ keyseq[l++] = key;
+ keyseq[l] = '\0';
+ rl_bind_keyseq (keyseq, function);
+ }
+ rl_binding_keymap = _rl_keymap;
+ return (0);
+}
+
+/* Bind KEY to FUNCTION in MAP. Returns non-zero in case of invalid
+ KEY. */
+int
+rl_bind_key_in_map (int key, rl_command_func_t *function, Keymap map)
+{
+ int result;
+ Keymap oldmap;
+
+ oldmap = _rl_keymap;
+ _rl_keymap = map;
+ result = rl_bind_key (key, function);
+ _rl_keymap = oldmap;
+ return (result);
+}
+
+/* Bind key sequence KEYSEQ to DEFAULT_FUNC if KEYSEQ is unbound. Right
+ now, this is always used to attempt to bind the arrow keys. */
+int
+rl_bind_key_if_unbound_in_map (int key, rl_command_func_t *default_func, Keymap kmap)
+{
+ char *keyseq;
+
+ keyseq = rl_untranslate_keyseq ((unsigned char)key);
+ return (rl_bind_keyseq_if_unbound_in_map (keyseq, default_func, kmap));
+}
+
+int
+rl_bind_key_if_unbound (int key, rl_command_func_t *default_func)
+{
+ char *keyseq;
+
+ keyseq = rl_untranslate_keyseq ((unsigned char)key);
+ return (rl_bind_keyseq_if_unbound_in_map (keyseq, default_func, _rl_keymap));
+}
+
+/* Make KEY do nothing in the currently selected keymap.
+ Returns non-zero in case of error. This is not the same as self-insert;
+ this makes it a dead key. */
+int
+rl_unbind_key (int key)
+{
+ return (rl_bind_key (key, (rl_command_func_t *)NULL));
+}
+
+/* Make KEY do nothing in MAP. Returns non-zero in case of error. */
+int
+rl_unbind_key_in_map (int key, Keymap map)
+{
+ return (rl_bind_key_in_map (key, (rl_command_func_t *)NULL, map));
+}
+
+/* Unbind all keys bound to FUNCTION in MAP. */
+int
+rl_unbind_function_in_map (rl_command_func_t *func, Keymap map)
+{
+ register int i, rval;
+
+ for (i = rval = 0; i < KEYMAP_SIZE; i++)
+ {
+ if (map[i].type == ISFUNC && map[i].function == func)
+ {
+ map[i].function = (rl_command_func_t *)NULL;
+ rval = 1;
+ }
+ else if (map[i].type == ISKMAP) /* TAG:readline-8.1 */
+ {
+ int r;
+ r = rl_unbind_function_in_map (func, FUNCTION_TO_KEYMAP (map, i));
+ if (r == 1)
+ rval = 1;
+ }
+ }
+ return rval;
+}
+
+/* Unbind all keys bound to COMMAND, which is a bindable command name, in MAP */
+int
+rl_unbind_command_in_map (const char *command, Keymap map)
+{
+ rl_command_func_t *func;
+
+ func = rl_named_function (command);
+ if (func == 0)
+ return 0;
+ return (rl_unbind_function_in_map (func, map));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+ FUNCTION, starting in the current keymap. This makes new
+ keymaps as necessary. */
+int
+rl_bind_keyseq (const char *keyseq, rl_command_func_t *function)
+{
+ return (rl_generic_bind (ISFUNC, keyseq, (char *)function, _rl_keymap));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+ FUNCTION. This makes new keymaps as necessary. The initial
+ place to do bindings is in MAP. */
+int
+rl_bind_keyseq_in_map (const char *keyseq, rl_command_func_t *function, Keymap map)
+{
+ return (rl_generic_bind (ISFUNC, keyseq, (char *)function, map));
+}
+
+/* Backwards compatibility; equivalent to rl_bind_keyseq_in_map() */
+int
+rl_set_key (const char *keyseq, rl_command_func_t *function, Keymap map)
+{
+ return (rl_generic_bind (ISFUNC, keyseq, (char *)function, map));
+}
+
+/* Bind key sequence KEYSEQ to DEFAULT_FUNC if KEYSEQ is unbound. Right
+ now, this is always used to attempt to bind the arrow keys, hence the
+ check for rl_vi_movement_mode. */
+int
+rl_bind_keyseq_if_unbound_in_map (const char *keyseq, rl_command_func_t *default_func, Keymap kmap)
+{
+ rl_command_func_t *func;
+ char *keys;
+ int keys_len;
+
+ if (keyseq)
+ {
+ /* Handle key sequences that require translations and `raw' ones that
+ don't. This might be a problem with backslashes. */
+ keys = (char *)xmalloc (1 + (2 * strlen (keyseq)));
+ if (rl_translate_keyseq (keyseq, keys, &keys_len))
+ {
+ xfree (keys);
+ return -1;
+ }
+ func = rl_function_of_keyseq_len (keys, keys_len, kmap, (int *)NULL);
+ xfree (keys);
+#if defined (VI_MODE)
+ if (!func || func == rl_do_lowercase_version || func == rl_vi_movement_mode)
+#else
+ if (!func || func == rl_do_lowercase_version)
+#endif
+ return (rl_bind_keyseq_in_map (keyseq, default_func, kmap));
+ else
+ return 1;
+ }
+ return 0;
+}
+
+int
+rl_bind_keyseq_if_unbound (const char *keyseq, rl_command_func_t *default_func)
+{
+ return (rl_bind_keyseq_if_unbound_in_map (keyseq, default_func, _rl_keymap));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+ the string of characters MACRO. This makes new keymaps as
+ necessary. The initial place to do bindings is in MAP. */
+int
+rl_macro_bind (const char *keyseq, const char *macro, Keymap map)
+{
+ char *macro_keys;
+ int macro_keys_len;
+
+ macro_keys = (char *)xmalloc ((2 * strlen (macro)) + 1);
+
+ if (rl_translate_keyseq (macro, macro_keys, &macro_keys_len))
+ {
+ xfree (macro_keys);
+ return -1;
+ }
+ rl_generic_bind (ISMACR, keyseq, macro_keys, map);
+ return 0;
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+ the arbitrary pointer DATA. TYPE says what kind of data is
+ pointed to by DATA, right now this can be a function (ISFUNC),
+ a macro (ISMACR), or a keymap (ISKMAP). This makes new keymaps
+ as necessary. The initial place to do bindings is in MAP. */
+int
+rl_generic_bind (int type, const char *keyseq, char *data, Keymap map)
+{
+ char *keys;
+ int keys_len, prevkey, ic;
+ register int i;
+ KEYMAP_ENTRY k;
+ Keymap prevmap;
+
+ k.function = 0;
+
+ /* If no keys to bind to, exit right away. */
+ if (keyseq == 0 || *keyseq == 0)
+ {
+ if (type == ISMACR)
+ xfree (data);
+ return -1;
+ }
+
+ keys = (char *)xmalloc (1 + (2 * strlen (keyseq)));
+
+ /* Translate the ASCII representation of KEYSEQ into an array of
+ characters. Stuff the characters into KEYS, and the length of
+ KEYS into KEYS_LEN. */
+ if (rl_translate_keyseq (keyseq, keys, &keys_len))
+ {
+ xfree (keys);
+ return -1;
+ }
+
+ prevmap = map;
+ prevkey = keys[0];
+
+ /* Bind keys, making new keymaps as necessary. */
+ for (i = 0; i < keys_len; i++)
+ {
+ unsigned char uc = keys[i];
+
+ if (i > 0)
+ prevkey = ic;
+
+ ic = uc;
+ if (ic < 0 || ic >= KEYMAP_SIZE)
+ {
+ xfree (keys);
+ return -1;
+ }
+
+ /* We now rely on rl_translate_keyseq to do this conversion, so this
+ check is superfluous. */
+#if 0
+ if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii)
+ {
+ ic = UNMETA (ic);
+ if (map[ESC].type == ISKMAP)
+ {
+ prevmap = map;
+ map = FUNCTION_TO_KEYMAP (map, ESC);
+ }
+ }
+#endif
+
+ if ((i + 1) < keys_len)
+ {
+ if (map[ic].type != ISKMAP)
+ {
+ /* We allow subsequences of keys. If a keymap is being
+ created that will `shadow' an existing function or macro
+ key binding, we save that keybinding into the ANYOTHERKEY
+ index in the new map. The dispatch code will look there
+ to find the function to execute if the subsequence is not
+ matched. ANYOTHERKEY was chosen to be greater than
+ UCHAR_MAX. */
+ k = map[ic];
+
+ map[ic].type = ISKMAP;
+ map[ic].function = KEYMAP_TO_FUNCTION (rl_make_bare_keymap());
+ }
+ prevmap = map;
+ map = FUNCTION_TO_KEYMAP (map, ic);
+ /* The dispatch code will return this function if no matching
+ key sequence is found in the keymap. This (with a little
+ help from the dispatch code in readline.c) allows `a' to be
+ mapped to something, `abc' to be mapped to something else,
+ and the function bound to `a' to be executed when the user
+ types `abx', leaving `bx' in the input queue. */
+ if (k.function && ((k.type == ISFUNC && k.function != rl_do_lowercase_version) || k.type == ISMACR))
+ {
+ map[ANYOTHERKEY] = k;
+ k.function = 0;
+ }
+ }
+ else
+ {
+ if (map[ic].type == ISKMAP)
+ {
+ prevmap = map;
+ map = FUNCTION_TO_KEYMAP (map, ic);
+ ic = ANYOTHERKEY;
+ /* If we're trying to override a keymap with a null function
+ (e.g., trying to unbind it), we can't use a null pointer
+ here because that's indistinguishable from having not been
+ overridden. We use a special bindable function that does
+ nothing. */
+ if (type == ISFUNC && data == 0)
+ data = (char *)_rl_null_function;
+ }
+ if (map[ic].type == ISMACR)
+ xfree ((char *)map[ic].function);
+
+ map[ic].function = KEYMAP_TO_FUNCTION (data);
+ map[ic].type = type;
+ }
+
+ rl_binding_keymap = map;
+
+ }
+
+ /* If we unbound a key (type == ISFUNC, data == 0), and the prev keymap
+ points to the keymap where we unbound the key (sanity check), and the
+ current binding keymap is empty (rl_empty_keymap() returns non-zero),
+ and the binding keymap has ANYOTHERKEY set with type == ISFUNC
+ (overridden function), delete the now-empty keymap, take the previously-
+ overridden function and remove the override. */
+ /* Right now, this only works one level back. */
+ if (type == ISFUNC && data == 0 &&
+ prevmap[prevkey].type == ISKMAP &&
+ (FUNCTION_TO_KEYMAP(prevmap, prevkey) == rl_binding_keymap) &&
+ rl_binding_keymap[ANYOTHERKEY].type == ISFUNC &&
+ rl_empty_keymap (rl_binding_keymap))
+ {
+ prevmap[prevkey].type = rl_binding_keymap[ANYOTHERKEY].type;
+ prevmap[prevkey].function = rl_binding_keymap[ANYOTHERKEY].function;
+ rl_discard_keymap (rl_binding_keymap);
+ rl_binding_keymap = prevmap;
+ }
+
+ xfree (keys);
+ return 0;
+}
+
+/* Translate the ASCII representation of SEQ, stuffing the values into ARRAY,
+ an array of characters. LEN gets the final length of ARRAY. Return
+ non-zero if there was an error parsing SEQ. */
+int
+rl_translate_keyseq (const char *seq, char *array, int *len)
+{
+ register int i, l, temp;
+ int has_control, has_meta;
+ unsigned char c;
+
+ has_control = 0;
+ has_meta = 0;
+
+ /* When there are incomplete prefixes \C- or \M- (has_control || has_meta)
+ without base character at the end of SEQ, they are processed as the
+ prefixes for '\0'.
+ */
+ for (i = l = 0; (c = seq[i]) || has_control || has_meta; i++)
+ {
+ /* Only backslashes followed by a non-null character are handled
+ specially. Trailing backslash (backslash followed by '\0') is
+ processed as a normal character.
+ */
+ if (c == '\\' && seq[i + 1] != '\0')
+ {
+ c = seq[++i];
+
+ /* Handle \C- and \M- prefixes. */
+ if (c == 'C' && seq[i + 1] == '-')
+ {
+ i++;
+ has_control = 1;
+ continue;
+ }
+ else if (c == 'M' && seq[i + 1] == '-')
+ {
+ i++;
+ has_meta = 1;
+ continue;
+ }
+
+ /* Translate other backslash-escaped characters. These are the
+ same escape sequences that bash's `echo' and `printf' builtins
+ handle, with the addition of \d -> RUBOUT. A backslash
+ preceding a character that is not special is stripped. */
+ switch (c)
+ {
+ case 'a':
+ c = '\007';
+ break;
+ case 'b':
+ c = '\b';
+ break;
+ case 'd':
+ c = RUBOUT; /* readline-specific */
+ break;
+ case 'e':
+ c = ESC;
+ break;
+ case 'f':
+ c = '\f';
+ break;
+ case 'n':
+ c = NEWLINE;
+ break;
+ case 'r':
+ c = RETURN;
+ break;
+ case 't':
+ c = TAB;
+ break;
+ case 'v':
+ c = 0x0B;
+ break;
+ case '\\':
+ c = '\\';
+ break;
+ case '0': case '1': case '2': case '3':
+ case '4': case '5': case '6': case '7':
+ i++;
+ for (temp = 2, c -= '0'; ISOCTAL ((unsigned char)seq[i]) && temp--; i++)
+ c = (c * 8) + OCTVALUE (seq[i]);
+ i--; /* auto-increment in for loop */
+ c &= largest_char;
+ break;
+ case 'x':
+ i++;
+ for (temp = 2, c = 0; ISXDIGIT ((unsigned char)seq[i]) && temp--; i++)
+ c = (c * 16) + HEXVALUE (seq[i]);
+ if (temp == 2)
+ c = 'x';
+ i--; /* auto-increment in for loop */
+ c &= largest_char;
+ break;
+ default: /* backslashes before non-special chars just add the char */
+ c &= largest_char;
+ break; /* the backslash is stripped */
+ }
+ }
+
+ /* Process \C- and \M- flags */
+ if (has_control)
+ {
+ /* Special treatment for C-? */
+ c = (c == '?') ? RUBOUT : CTRL (_rl_to_upper (c));
+ has_control = 0;
+ }
+ if (has_meta)
+ {
+ c = META (c);
+ has_meta = 0;
+ }
+
+ /* If convert-meta is turned on, convert a meta char to a key sequence */
+ if (META_CHAR (c) && _rl_convert_meta_chars_to_ascii)
+ {
+ array[l++] = ESC; /* ESC is meta-prefix */
+ array[l++] = UNMETA (c);
+ }
+ else
+ array[l++] = (c);
+
+ /* Null characters may be processed for incomplete prefixes at the end of
+ sequence */
+ if (seq[i] == '\0')
+ break;
+ }
+
+ *len = l;
+ array[l] = '\0';
+ return (0);
+}
+
+static int
+_rl_isescape (int c)
+{
+ switch (c)
+ {
+ case '\007':
+ case '\b':
+ case '\f':
+ case '\n':
+ case '\r':
+ case TAB:
+ case 0x0b: return (1);
+ default: return (0);
+ }
+}
+
+static int
+_rl_escchar (int c)
+{
+ switch (c)
+ {
+ case '\007': return ('a');
+ case '\b': return ('b');
+ case '\f': return ('f');
+ case '\n': return ('n');
+ case '\r': return ('r');
+ case TAB: return ('t');
+ case 0x0b: return ('v');
+ default: return (c);
+ }
+}
+
+char *
+rl_untranslate_keyseq (int seq)
+{
+ static char kseq[16];
+ int i, c;
+
+ i = 0;
+ c = seq;
+ if (META_CHAR (c))
+ {
+ kseq[i++] = '\\';
+ kseq[i++] = 'M';
+ kseq[i++] = '-';
+ c = UNMETA (c);
+ }
+ else if (c == ESC)
+ {
+ kseq[i++] = '\\';
+ c = 'e';
+ }
+ else if (CTRL_CHAR (c))
+ {
+ kseq[i++] = '\\';
+ kseq[i++] = 'C';
+ kseq[i++] = '-';
+ c = _rl_to_lower (UNCTRL (c));
+ }
+ else if (c == RUBOUT)
+ {
+ kseq[i++] = '\\';
+ kseq[i++] = 'C';
+ kseq[i++] = '-';
+ c = '?';
+ }
+
+ if (c == ESC)
+ {
+ kseq[i++] = '\\';
+ c = 'e';
+ }
+ else if (c == '\\' || c == '"')
+ {
+ kseq[i++] = '\\';
+ }
+
+ kseq[i++] = (unsigned char) c;
+ kseq[i] = '\0';
+ return kseq;
+}
+
+char *
+_rl_untranslate_macro_value (char *seq, int use_escapes)
+{
+ char *ret, *r, *s;
+ int c;
+
+ r = ret = (char *)xmalloc (7 * strlen (seq) + 1);
+ for (s = seq; *s; s++)
+ {
+ c = *s;
+ if (META_CHAR (c))
+ {
+ *r++ = '\\';
+ *r++ = 'M';
+ *r++ = '-';
+ c = UNMETA (c);
+ }
+ else if (c == ESC)
+ {
+ *r++ = '\\';
+ c = 'e';
+ }
+ else if (CTRL_CHAR (c))
+ {
+ *r++ = '\\';
+ if (use_escapes && _rl_isescape (c))
+ c = _rl_escchar (c);
+ else
+ {
+ *r++ = 'C';
+ *r++ = '-';
+ c = _rl_to_lower (UNCTRL (c));
+ }
+ }
+ else if (c == RUBOUT)
+ {
+ *r++ = '\\';
+ *r++ = 'C';
+ *r++ = '-';
+ c = '?';
+ }
+
+ if (c == ESC)
+ {
+ *r++ = '\\';
+ c = 'e';
+ }
+ else if (c == '\\' || c == '"')
+ *r++ = '\\';
+
+ *r++ = (unsigned char)c;
+ }
+ *r = '\0';
+ return ret;
+}
+
+/* Return a pointer to the function that STRING represents.
+ If STRING doesn't have a matching function, then a NULL pointer
+ is returned. The string match is case-insensitive. */
+rl_command_func_t *
+rl_named_function (const char *string)
+{
+ register int i;
+
+ rl_initialize_funmap ();
+
+ for (i = 0; funmap[i]; i++)
+ if (_rl_stricmp (funmap[i]->name, string) == 0)
+ return (funmap[i]->function);
+ return ((rl_command_func_t *)NULL);
+}
+
+/* Return the function (or macro) definition which would be invoked via
+ KEYSEQ if executed in MAP. If MAP is NULL, then the current keymap is
+ used. TYPE, if non-NULL, is a pointer to an int which will receive the
+ type of the object pointed to. One of ISFUNC (function), ISKMAP (keymap),
+ or ISMACR (macro). */
+static rl_command_func_t *
+_rl_function_of_keyseq_internal (const char *keyseq, size_t len, Keymap map, int *type)
+{
+ register int i;
+
+ if (map == 0)
+ map = _rl_keymap;
+
+ for (i = 0; keyseq && i < len; i++)
+ {
+ unsigned char ic = keyseq[i];
+
+ if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii)
+ {
+ if (map[ESC].type == ISKMAP)
+ {
+ map = FUNCTION_TO_KEYMAP (map, ESC);
+ ic = UNMETA (ic);
+ }
+ /* XXX - should we just return NULL here, since this obviously
+ doesn't match? */
+ else
+ {
+ if (type)
+ *type = map[ESC].type;
+
+ return (map[ESC].function);
+ }
+ }
+
+ if (map[ic].type == ISKMAP)
+ {
+ /* If this is the last key in the key sequence, return the
+ map. */
+ if (i + 1 == len)
+ {
+ if (type)
+ *type = ISKMAP;
+
+ return (map[ic].function);
+ }
+ else
+ map = FUNCTION_TO_KEYMAP (map, ic);
+ }
+ /* If we're not at the end of the key sequence, and the current key
+ is bound to something other than a keymap, then the entire key
+ sequence is not bound. */
+ else if (map[ic].type != ISKMAP && i+1 < len)
+ return ((rl_command_func_t *)NULL);
+ else /* map[ic].type != ISKMAP && i+1 == len */
+ {
+ if (type)
+ *type = map[ic].type;
+
+ return (map[ic].function);
+ }
+ }
+ return ((rl_command_func_t *) NULL);
+}
+
+rl_command_func_t *
+rl_function_of_keyseq (const char *keyseq, Keymap map, int *type)
+{
+ return _rl_function_of_keyseq_internal (keyseq, strlen (keyseq), map, type);
+}
+
+rl_command_func_t *
+rl_function_of_keyseq_len (const char *keyseq, size_t len, Keymap map, int *type)
+{
+ return _rl_function_of_keyseq_internal (keyseq, len, map, type);
+}
+
+/* The last key bindings file read. */
+static char *last_readline_init_file = (char *)NULL;
+
+/* The file we're currently reading key bindings from. */
+static const char *current_readline_init_file;
+static int current_readline_init_include_level;
+static int current_readline_init_lineno;
+
+/* Read FILENAME into a locally-allocated buffer and return the buffer.
+ The size of the buffer is returned in *SIZEP. Returns NULL if any
+ errors were encountered. */
+static char *
+_rl_read_file (char *filename, size_t *sizep)
+{
+ struct stat finfo;
+ size_t file_size;
+ char *buffer;
+ int i, file;
+
+ file = -1;
+ if (((file = open (filename, O_RDONLY, 0666)) < 0) || (fstat (file, &finfo) < 0))
+ {
+ if (file >= 0)
+ close (file);
+ return ((char *)NULL);
+ }
+
+ file_size = (size_t)finfo.st_size;
+
+ /* check for overflow on very large files */
+ if (file_size != finfo.st_size || file_size + 1 < file_size)
+ {
+ if (file >= 0)
+ close (file);
+#if defined (EFBIG)
+ errno = EFBIG;
+#endif
+ return ((char *)NULL);
+ }
+
+ /* Read the file into BUFFER. */
+ buffer = (char *)xmalloc (file_size + 1);
+ i = read (file, buffer, file_size);
+ close (file);
+
+ if (i < 0)
+ {
+ xfree (buffer);
+ return ((char *)NULL);
+ }
+
+ RL_CHECK_SIGNALS ();
+
+ buffer[i] = '\0';
+ if (sizep)
+ *sizep = i;
+
+ return (buffer);
+}
+
+/* Re-read the current keybindings file. */
+int
+rl_re_read_init_file (int count, int ignore)
+{
+ int r;
+ r = rl_read_init_file ((const char *)NULL);
+ rl_set_keymap_from_edit_mode ();
+ return r;
+}
+
+/* Do key bindings from a file. If FILENAME is NULL it defaults
+ to the first non-null filename from this list:
+ 1. the filename used for the previous call
+ 2. the value of the shell variable `INPUTRC'
+ 3. ~/.inputrc
+ 4. /etc/inputrc
+ If the file existed and could be opened and read, 0 is returned,
+ otherwise errno is returned. */
+int
+rl_read_init_file (const char *filename)
+{
+ /* Default the filename. */
+ if (filename == 0)
+ filename = last_readline_init_file;
+ if (filename == 0)
+ filename = sh_get_env_value ("INPUTRC");
+ if (filename == 0 || *filename == 0)
+ {
+ filename = DEFAULT_INPUTRC;
+ /* Try to read DEFAULT_INPUTRC; fall back to SYS_INPUTRC on failure */
+ if (_rl_read_init_file (filename, 0) == 0)
+ return 0;
+ filename = SYS_INPUTRC;
+ }
+
+#if defined (__MSDOS__)
+ if (_rl_read_init_file (filename, 0) == 0)
+ return 0;
+ filename = "~/_inputrc";
+#endif
+ return (_rl_read_init_file (filename, 0));
+}
+
+static int
+_rl_read_init_file (const char *filename, int include_level)
+{
+ register int i;
+ char *buffer, *openname, *line, *end;
+ size_t file_size;
+
+ current_readline_init_file = filename;
+ current_readline_init_include_level = include_level;
+
+ openname = tilde_expand (filename);
+ buffer = _rl_read_file (openname, &file_size);
+ xfree (openname);
+
+ RL_CHECK_SIGNALS ();
+ if (buffer == 0)
+ return (errno);
+
+ if (include_level == 0 && filename != last_readline_init_file)
+ {
+ FREE (last_readline_init_file);
+ last_readline_init_file = savestring (filename);
+ }
+
+ currently_reading_init_file = 1;
+
+ /* Loop over the lines in the file. Lines that start with `#' are
+ comments; all other lines are commands for readline initialization. */
+ current_readline_init_lineno = 1;
+ line = buffer;
+ end = buffer + file_size;
+ while (line < end)
+ {
+ /* Find the end of this line. */
+ for (i = 0; line + i != end && line[i] != '\n'; i++);
+
+#if defined (__CYGWIN__)
+ /* ``Be liberal in what you accept.'' */
+ if (line[i] == '\n' && line[i-1] == '\r')
+ line[i - 1] = '\0';
+#endif
+
+ /* Mark end of line. */
+ line[i] = '\0';
+
+ /* Skip leading whitespace. */
+ while (*line && whitespace (*line))
+ {
+ line++;
+ i--;
+ }
+
+ /* If the line is not a comment, then parse it. */
+ if (*line && *line != '#')
+ rl_parse_and_bind (line);
+
+ /* Move to the next line. */
+ line += i + 1;
+ current_readline_init_lineno++;
+ }
+
+ xfree (buffer);
+ currently_reading_init_file = 0;
+ return (0);
+}
+
+static void
+#if defined (PREFER_STDARG)
+_rl_init_file_error (const char *format, ...)
+#else
+_rl_init_file_error (va_alist)
+ va_dcl
+#endif
+{
+ va_list args;
+#if defined (PREFER_VARARGS)
+ char *format;
+#endif
+
+#if defined (PREFER_STDARG)
+ va_start (args, format);
+#else
+ va_start (args);
+ format = va_arg (args, char *);
+#endif
+
+ fprintf (stderr, "readline: ");
+ if (currently_reading_init_file)
+ fprintf (stderr, "%s: line %d: ", current_readline_init_file,
+ current_readline_init_lineno);
+
+ vfprintf (stderr, format, args);
+ fprintf (stderr, "\n");
+ fflush (stderr);
+
+ va_end (args);
+}
+
+/* **************************************************************** */
+/* */
+/* Parser Helper Functions */
+/* */
+/* **************************************************************** */
+
+static int
+parse_comparison_op (s, indp)
+ const char *s;
+ int *indp;
+{
+ int i, peekc, op;
+
+ if (OPSTART (s[*indp]) == 0)
+ return -1;
+ i = *indp;
+ peekc = s[i] ? s[i+1] : 0;
+ op = -1;
+
+ if (s[i] == '=')
+ {
+ op = OP_EQ;
+ if (peekc == '=')
+ i++;
+ i++;
+ }
+ else if (s[i] == '!' && peekc == '=')
+ {
+ op = OP_NE;
+ i += 2;
+ }
+ else if (s[i] == '<' && peekc == '=')
+ {
+ op = OP_LE;
+ i += 2;
+ }
+ else if (s[i] == '>' && peekc == '=')
+ {
+ op = OP_GE;
+ i += 2;
+ }
+ else if (s[i] == '<')
+ {
+ op = OP_LT;
+ i += 1;
+ }
+ else if (s[i] == '>')
+ {
+ op = OP_GT;
+ i += 1;
+ }
+
+ *indp = i;
+ return op;
+}
+
+/* **************************************************************** */
+/* */
+/* Parser Directives */
+/* */
+/* **************************************************************** */
+
+typedef int _rl_parser_func_t PARAMS((char *));
+
+/* Things that mean `Control'. */
+const char * const _rl_possible_control_prefixes[] = {
+ "Control-", "C-", "CTRL-", (const char *)NULL
+};
+
+const char * const _rl_possible_meta_prefixes[] = {
+ "Meta", "M-", (const char *)NULL
+};
+
+/* Conditionals. */
+
+/* Calling programs set this to have their argv[0]. */
+const char *rl_readline_name = "other";
+
+/* Stack of previous values of parsing_conditionalized_out. */
+static unsigned char *if_stack = (unsigned char *)NULL;
+static int if_stack_depth;
+static int if_stack_size;
+
+/* Push _rl_parsing_conditionalized_out, and set parser state based
+ on ARGS. */
+static int
+parser_if (char *args)
+{
+ int i, llen, boolvar, strvar;
+
+ boolvar = strvar = -1;
+
+ /* Push parser state. */
+ if (if_stack_depth + 1 >= if_stack_size)
+ {
+ if (!if_stack)
+ if_stack = (unsigned char *)xmalloc (if_stack_size = 20);
+ else
+ if_stack = (unsigned char *)xrealloc (if_stack, if_stack_size += 20);
+ }
+ if_stack[if_stack_depth++] = _rl_parsing_conditionalized_out;
+
+ /* If parsing is turned off, then nothing can turn it back on except
+ for finding the matching endif. In that case, return right now. */
+ if (_rl_parsing_conditionalized_out)
+ return 0;
+
+ llen = strlen (args);
+
+ /* Isolate first argument. */
+ for (i = 0; args[i] && !whitespace (args[i]); i++);
+
+ if (args[i])
+ args[i++] = '\0';
+
+ /* Handle "$if term=foo" and "$if mode=emacs" constructs. If this
+ isn't term=foo, or mode=emacs, then check to see if the first
+ word in ARGS is the same as the value stored in rl_readline_name. */
+ if (rl_terminal_name && _rl_strnicmp (args, "term=", 5) == 0)
+ {
+ char *tem, *tname;
+
+ /* Terminals like "aaa-60" are equivalent to "aaa". */
+ tname = savestring (rl_terminal_name);
+ tem = strchr (tname, '-');
+ if (tem)
+ *tem = '\0';
+
+ /* Test the `long' and `short' forms of the terminal name so that
+ if someone has a `sun-cmd' and does not want to have bindings
+ that will be executed if the terminal is a `sun', they can put
+ `$if term=sun-cmd' into their .inputrc. */
+ _rl_parsing_conditionalized_out = _rl_stricmp (args + 5, tname) &&
+ _rl_stricmp (args + 5, rl_terminal_name);
+ xfree (tname);
+ }
+#if defined (VI_MODE)
+ else if (_rl_strnicmp (args, "mode=", 5) == 0)
+ {
+ int mode;
+
+ if (_rl_stricmp (args + 5, "emacs") == 0)
+ mode = emacs_mode;
+ else if (_rl_stricmp (args + 5, "vi") == 0)
+ mode = vi_mode;
+ else
+ mode = no_mode;
+
+ _rl_parsing_conditionalized_out = mode != rl_editing_mode;
+ }
+#endif /* VI_MODE */
+ else if (_rl_strnicmp (args, "version", 7) == 0)
+ {
+ int rlversion, versionarg, op, previ, major, minor;
+
+ _rl_parsing_conditionalized_out = 1;
+ rlversion = RL_VERSION_MAJOR*10 + RL_VERSION_MINOR;
+ /* if "version" is separated from the operator by whitespace, or the
+ operand is separated from the operator by whitespace, restore it.
+ We're more liberal with allowed whitespace for this variable. */
+ if (i > 0 && i <= llen && args[i-1] == '\0')
+ args[i-1] = ' ';
+ args[llen] = '\0'; /* just in case */
+ for (i = 7; whitespace (args[i]); i++)
+ ;
+ if (OPSTART(args[i]) == 0)
+ {
+ _rl_init_file_error ("comparison operator expected, found `%s'", args[i] ? args + i : "end-of-line");
+ return 0;
+ }
+ previ = i;
+ op = parse_comparison_op (args, &i);
+ if (op <= 0)
+ {
+ _rl_init_file_error ("comparison operator expected, found `%s'", args+previ);
+ return 0;
+ }
+ for ( ; args[i] && whitespace (args[i]); i++)
+ ;
+ if (args[i] == 0 || _rl_digit_p (args[i]) == 0)
+ {
+ _rl_init_file_error ("numeric argument expected, found `%s'", args+i);
+ return 0;
+ }
+ major = minor = 0;
+ previ = i;
+ for ( ; args[i] && _rl_digit_p (args[i]); i++)
+ major = major*10 + _rl_digit_value (args[i]);
+ if (args[i] == '.')
+ {
+ if (args[i + 1] && _rl_digit_p (args [i + 1]) == 0)
+ {
+ _rl_init_file_error ("numeric argument expected, found `%s'", args+previ);
+ return 0;
+ }
+ for (++i; args[i] && _rl_digit_p (args[i]); i++)
+ minor = minor*10 + _rl_digit_value (args[i]);
+ }
+ /* optional - check for trailing garbage on the line, allow whitespace
+ and a trailing comment */
+ previ = i;
+ for ( ; args[i] && whitespace (args[i]); i++)
+ ;
+ if (args[i] && args[i] != '#')
+ {
+ _rl_init_file_error ("trailing garbage on line: `%s'", args+previ);
+ return 0;
+ }
+ versionarg = major*10 + minor;
+
+ switch (op)
+ {
+ case OP_EQ:
+ _rl_parsing_conditionalized_out = rlversion == versionarg;
+ break;
+ case OP_NE:
+ _rl_parsing_conditionalized_out = rlversion != versionarg;
+ break;
+ case OP_GT:
+ _rl_parsing_conditionalized_out = rlversion > versionarg;
+ break;
+ case OP_GE:
+ _rl_parsing_conditionalized_out = rlversion >= versionarg;
+ break;
+ case OP_LT:
+ _rl_parsing_conditionalized_out = rlversion < versionarg;
+ break;
+ case OP_LE:
+ _rl_parsing_conditionalized_out = rlversion <= versionarg;
+ break;
+ }
+ }
+ /* Check to see if the first word in ARGS is the same as the
+ value stored in rl_readline_name. */
+ else if (_rl_stricmp (args, rl_readline_name) == 0)
+ _rl_parsing_conditionalized_out = 0;
+ else if ((boolvar = find_boolean_var (args)) >= 0 || (strvar = find_string_var (args)) >= 0)
+ {
+ int op, previ;
+ size_t vlen;
+ const char *vname;
+ char *valuearg, *vval, prevc;
+
+ _rl_parsing_conditionalized_out = 1;
+ vname = (boolvar >= 0) ? boolean_varname (boolvar) : string_varname (strvar);
+ vlen = strlen (vname);
+ if (i > 0 && i <= llen && args[i-1] == '\0')
+ args[i-1] = ' ';
+ args[llen] = '\0'; /* just in case */
+ for (i = vlen; whitespace (args[i]); i++)
+ ;
+ if (CMPSTART(args[i]) == 0)
+ {
+ _rl_init_file_error ("equality comparison operator expected, found `%s'", args[i] ? args + i : "end-of-line");
+ return 0;
+ }
+ previ = i;
+ op = parse_comparison_op (args, &i);
+ if (op != OP_EQ && op != OP_NE)
+ {
+ _rl_init_file_error ("equality comparison operator expected, found `%s'", args+previ);
+ return 0;
+ }
+ for ( ; args[i] && whitespace (args[i]); i++)
+ ;
+ if (args[i] == 0)
+ {
+ _rl_init_file_error ("argument expected, found `%s'", args+i);
+ return 0;
+ }
+ previ = i;
+ valuearg = args + i;
+ for ( ; args[i] && whitespace (args[i]) == 0; i++)
+ ;
+ prevc = args[i];
+ args[i] = '\0'; /* null-terminate valuearg */
+ vval = rl_variable_value (vname);
+ if (op == OP_EQ)
+ _rl_parsing_conditionalized_out = _rl_stricmp (vval, valuearg) != 0;
+ else if (op == OP_NE)
+ _rl_parsing_conditionalized_out = _rl_stricmp (vval, valuearg) == 0;
+ args[i] = prevc;
+ }
+ else
+ _rl_parsing_conditionalized_out = 1;
+ return 0;
+}
+
+/* Invert the current parser state if there is anything on the stack. */
+static int
+parser_else (char *args)
+{
+ register int i;
+
+ if (if_stack_depth == 0)
+ {
+ _rl_init_file_error ("$else found without matching $if");
+ return 0;
+ }
+
+#if 0
+ /* Check the previous (n - 1) levels of the stack to make sure that
+ we haven't previously turned off parsing. */
+ for (i = 0; i < if_stack_depth - 1; i++)
+#else
+ /* Check the previous (n) levels of the stack to make sure that
+ we haven't previously turned off parsing. */
+ for (i = 0; i < if_stack_depth; i++)
+#endif
+ if (if_stack[i] == 1)
+ return 0;
+
+ /* Invert the state of parsing if at top level. */
+ _rl_parsing_conditionalized_out = !_rl_parsing_conditionalized_out;
+ return 0;
+}
+
+/* Terminate a conditional, popping the value of
+ _rl_parsing_conditionalized_out from the stack. */
+static int
+parser_endif (char *args)
+{
+ if (if_stack_depth)
+ _rl_parsing_conditionalized_out = if_stack[--if_stack_depth];
+ else
+ _rl_init_file_error ("$endif without matching $if");
+ return 0;
+}
+
+static int
+parser_include (char *args)
+{
+ const char *old_init_file;
+ char *e;
+ int old_line_number, old_include_level, r;
+
+ if (_rl_parsing_conditionalized_out)
+ return (0);
+
+ old_init_file = current_readline_init_file;
+ old_line_number = current_readline_init_lineno;
+ old_include_level = current_readline_init_include_level;
+
+ e = strchr (args, '\n');
+ if (e)
+ *e = '\0';
+ r = _rl_read_init_file ((const char *)args, old_include_level + 1);
+
+ current_readline_init_file = old_init_file;
+ current_readline_init_lineno = old_line_number;
+ current_readline_init_include_level = old_include_level;
+
+ return r;
+}
+
+/* Associate textual names with actual functions. */
+static const struct {
+ const char * const name;
+ _rl_parser_func_t *function;
+} parser_directives [] = {
+ { "if", parser_if },
+ { "endif", parser_endif },
+ { "else", parser_else },
+ { "include", parser_include },
+ { (char *)0x0, (_rl_parser_func_t *)0x0 }
+};
+
+/* Handle a parser directive. STATEMENT is the line of the directive
+ without any leading `$'. */
+static int
+handle_parser_directive (char *statement)
+{
+ register int i;
+ char *directive, *args;
+
+ /* Isolate the actual directive. */
+
+ /* Skip whitespace. */
+ for (i = 0; whitespace (statement[i]); i++);
+
+ directive = &statement[i];
+
+ for (; statement[i] && !whitespace (statement[i]); i++);
+
+ if (statement[i])
+ statement[i++] = '\0';
+
+ for (; statement[i] && whitespace (statement[i]); i++);
+
+ args = &statement[i];
+
+ /* Lookup the command, and act on it. */
+ for (i = 0; parser_directives[i].name; i++)
+ if (_rl_stricmp (directive, parser_directives[i].name) == 0)
+ {
+ (*parser_directives[i].function) (args);
+ return (0);
+ }
+
+ /* display an error message about the unknown parser directive */
+ _rl_init_file_error ("%s: unknown parser directive", directive);
+ return (1);
+}
+
+/* Start at STRING[START] and look for DELIM. Return I where STRING[I] ==
+ DELIM or STRING[I] == 0. DELIM is usually a double quote. */
+static int
+_rl_skip_to_delim (char *string, int start, int delim)
+{
+ int i, c, passc;
+
+ for (i = start,passc = 0; c = string[i]; i++)
+ {
+ if (passc)
+ {
+ passc = 0;
+ if (c == 0)
+ break;
+ continue;
+ }
+
+ if (c == '\\')
+ {
+ passc = 1;
+ continue;
+ }
+
+ if (c == delim)
+ break;
+ }
+
+ return i;
+}
+
+/* Read the binding command from STRING and perform it.
+ A key binding command looks like: Keyname: function-name\0,
+ a variable binding command looks like: set variable value.
+ A new-style keybinding looks like "\C-x\C-x": exchange-point-and-mark. */
+int
+rl_parse_and_bind (char *string)
+{
+ char *funname, *kname;
+ register int c, i;
+ int key, equivalency, foundmod, foundsep;
+
+ while (string && whitespace (*string))
+ string++;
+
+ if (string == 0 || *string == 0 || *string == '#')
+ return 0;
+
+ /* If this is a parser directive, act on it. */
+ if (*string == '$')
+ {
+ handle_parser_directive (&string[1]);
+ return 0;
+ }
+
+ /* If we aren't supposed to be parsing right now, then we're done. */
+ if (_rl_parsing_conditionalized_out)
+ return 0;
+
+ i = 0;
+ /* If this keyname is a complex key expression surrounded by quotes,
+ advance to after the matching close quote. This code allows the
+ backslash to quote characters in the key expression. */
+ if (*string == '"')
+ {
+ i = _rl_skip_to_delim (string, 1, '"');
+
+ /* If we didn't find a closing quote, abort the line. */
+ if (string[i] == '\0')
+ {
+ _rl_init_file_error ("%s: no closing `\"' in key binding", string);
+ return 1;
+ }
+ else
+ i++; /* skip past closing double quote */
+ }
+
+ /* Advance to the colon (:) or whitespace which separates the two objects. */
+ for (; (c = string[i]) && c != ':' && c != ' ' && c != '\t'; i++ );
+
+ if (i == 0)
+ {
+ _rl_init_file_error ("`%s': invalid key binding: missing key sequence", string);
+ return 1;
+ }
+
+ equivalency = (c == ':' && string[i + 1] == '=');
+
+ foundsep = c != 0;
+
+ /* Mark the end of the command (or keyname). */
+ if (string[i])
+ string[i++] = '\0';
+
+ /* If doing assignment, skip the '=' sign as well. */
+ if (equivalency)
+ string[i++] = '\0';
+
+ /* If this is a command to set a variable, then do that. */
+ if (_rl_stricmp (string, "set") == 0)
+ {
+ char *var, *value, *e;
+ int s;
+
+ var = string + i;
+ /* Make VAR point to start of variable name. */
+ while (*var && whitespace (*var)) var++;
+
+ /* Make VALUE point to start of value string. */
+ value = var;
+ while (*value && whitespace (*value) == 0) value++;
+ if (*value)
+ *value++ = '\0';
+ while (*value && whitespace (*value)) value++;
+
+ /* Strip trailing whitespace from values of boolean variables. */
+ if (find_boolean_var (var) >= 0)
+ {
+ /* just read a whitespace-delimited word or empty string */
+ for (e = value; *e && whitespace (*e) == 0; e++)
+ ;
+ if (e > value)
+ *e = '\0'; /* cut off everything trailing */
+ }
+ else if ((i = find_string_var (var)) >= 0)
+ {
+ /* Allow quoted strings in variable values */
+ if (*value == '"')
+ {
+ i = _rl_skip_to_delim (value, 1, *value);
+ value[i] = '\0';
+ value++; /* skip past the quote */
+ }
+ else
+ {
+ /* remove trailing whitespace */
+ e = value + strlen (value) - 1;
+ while (e >= value && whitespace (*e))
+ e--;
+ e++; /* skip back to whitespace or EOS */
+
+ if (*e && e >= value)
+ *e = '\0';
+ }
+ }
+ else
+ {
+ /* avoid calling rl_variable_bind just to find this out */
+ _rl_init_file_error ("%s: unknown variable name", var);
+ return 1;
+ }
+
+ rl_variable_bind (var, value);
+ return 0;
+ }
+
+ /* Skip any whitespace between keyname and funname. */
+ for (; string[i] && whitespace (string[i]); i++);
+ funname = &string[i];
+
+ /* Now isolate funname.
+ For straight function names just look for whitespace, since
+ that will signify the end of the string. But this could be a
+ macro definition. In that case, the string is quoted, so skip
+ to the matching delimiter. We allow the backslash to quote the
+ delimiter characters in the macro body. */
+ /* This code exists to allow whitespace in macro expansions, which
+ would otherwise be gobbled up by the next `for' loop.*/
+ /* XXX - it may be desirable to allow backslash quoting only if " is
+ the quoted string delimiter, like the shell. */
+ if (*funname == '\'' || *funname == '"')
+ {
+ i = _rl_skip_to_delim (string, i+1, *funname);
+ if (string[i])
+ i++;
+ else
+ {
+ _rl_init_file_error ("`%s': missing closing quote for macro", funname);
+ return 1;
+ }
+ }
+
+ /* Advance to the end of the string. */
+ for (; string[i] && whitespace (string[i]) == 0; i++);
+
+ /* No extra whitespace at the end of the string. */
+ string[i] = '\0';
+
+ /* Handle equivalency bindings here. Make the left-hand side be exactly
+ whatever the right-hand evaluates to, including keymaps. */
+ if (equivalency)
+ {
+ return 0;
+ }
+
+ if (foundsep == 0)
+ {
+ _rl_init_file_error ("%s: no key sequence terminator", string);
+ return 1;
+ }
+
+ /* If this is a new-style key-binding, then do the binding with
+ rl_bind_keyseq (). Otherwise, let the older code deal with it. */
+ if (*string == '"')
+ {
+ char *seq;
+ register int j, k, passc;
+
+ seq = (char *)xmalloc (1 + strlen (string));
+ for (j = 1, k = passc = 0; string[j]; j++)
+ {
+ /* Allow backslash to quote characters, but leave them in place.
+ This allows a string to end with a backslash quoting another
+ backslash, or with a backslash quoting a double quote. The
+ backslashes are left in place for rl_translate_keyseq (). */
+ if (passc || (string[j] == '\\'))
+ {
+ seq[k++] = string[j];
+ passc = !passc;
+ continue;
+ }
+
+ if (string[j] == '"')
+ break;
+
+ seq[k++] = string[j];
+ }
+ seq[k] = '\0';
+
+ /* Binding macro? */
+ if (*funname == '\'' || *funname == '"')
+ {
+ j = strlen (funname);
+
+ /* Remove the delimiting quotes from each end of FUNNAME. */
+ if (j && funname[j - 1] == *funname)
+ funname[j - 1] = '\0';
+
+ rl_macro_bind (seq, &funname[1], _rl_keymap);
+ }
+ else
+ rl_bind_keyseq (seq, rl_named_function (funname));
+
+ xfree (seq);
+ return 0;
+ }
+
+ /* Get the actual character we want to deal with. */
+ kname = strrchr (string, '-');
+ if (kname == 0)
+ kname = string;
+ else
+ kname++;
+
+ key = glean_key_from_name (kname);
+
+ /* Add in control and meta bits. */
+ foundmod = 0;
+ if (substring_member_of_array (string, _rl_possible_control_prefixes))
+ {
+ key = CTRL (_rl_to_upper (key));
+ foundmod = 1;
+ }
+
+ if (substring_member_of_array (string, _rl_possible_meta_prefixes))
+ {
+ key = META (key);
+ foundmod = 1;
+ }
+
+ if (foundmod == 0 && kname != string)
+ {
+ _rl_init_file_error ("%s: unknown key modifier", string);
+ return 1;
+ }
+
+ /* Temporary. Handle old-style keyname with macro-binding. */
+ if (*funname == '\'' || *funname == '"')
+ {
+ char useq[2];
+ int fl = strlen (funname);
+
+ useq[0] = key; useq[1] = '\0';
+ if (fl && funname[fl - 1] == *funname)
+ funname[fl - 1] = '\0';
+
+ rl_macro_bind (useq, &funname[1], _rl_keymap);
+ }
+#if defined (PREFIX_META_HACK)
+ /* Ugly, but working hack to keep prefix-meta around. */
+ else if (_rl_stricmp (funname, "prefix-meta") == 0)
+ {
+ char seq[2];
+
+ seq[0] = key;
+ seq[1] = '\0';
+ rl_generic_bind (ISKMAP, seq, (char *)emacs_meta_keymap, _rl_keymap);
+ }
+#endif /* PREFIX_META_HACK */
+ else
+ rl_bind_key (key, rl_named_function (funname));
+
+ return 0;
+}
+
+/* Simple structure for boolean readline variables (i.e., those that can
+ have one of two values; either "On" or 1 for truth, or "Off" or 0 for
+ false. */
+
+#define V_SPECIAL 0x1
+
+static const struct {
+ const char * const name;
+ int *value;
+ int flags;
+} boolean_varlist [] = {
+ { "bind-tty-special-chars", &_rl_bind_stty_chars, 0 },
+ { "blink-matching-paren", &rl_blink_matching_paren, V_SPECIAL },
+ { "byte-oriented", &rl_byte_oriented, 0 },
+#if defined (COLOR_SUPPORT)
+ { "colored-completion-prefix",&_rl_colored_completion_prefix, 0 },
+ { "colored-stats", &_rl_colored_stats, 0 },
+#endif
+ { "completion-ignore-case", &_rl_completion_case_fold, 0 },
+ { "completion-map-case", &_rl_completion_case_map, 0 },
+ { "convert-meta", &_rl_convert_meta_chars_to_ascii, 0 },
+ { "disable-completion", &rl_inhibit_completion, 0 },
+ { "echo-control-characters", &_rl_echo_control_chars, 0 },
+ { "enable-bracketed-paste", &_rl_enable_bracketed_paste, V_SPECIAL },
+ { "enable-keypad", &_rl_enable_keypad, 0 },
+ { "enable-meta-key", &_rl_enable_meta, 0 },
+ { "expand-tilde", &rl_complete_with_tilde_expansion, 0 },
+ { "history-preserve-point", &_rl_history_preserve_point, 0 },
+ { "horizontal-scroll-mode", &_rl_horizontal_scroll_mode, 0 },
+ { "input-meta", &_rl_meta_flag, 0 },
+ { "mark-directories", &_rl_complete_mark_directories, 0 },
+ { "mark-modified-lines", &_rl_mark_modified_lines, 0 },
+ { "mark-symlinked-directories", &_rl_complete_mark_symlink_dirs, 0 },
+ { "match-hidden-files", &_rl_match_hidden_files, 0 },
+ { "menu-complete-display-prefix", &_rl_menu_complete_prefix_first, 0 },
+ { "meta-flag", &_rl_meta_flag, 0 },
+ { "output-meta", &_rl_output_meta_chars, 0 },
+ { "page-completions", &_rl_page_completions, 0 },
+ { "prefer-visible-bell", &_rl_prefer_visible_bell, V_SPECIAL },
+ { "print-completions-horizontally", &_rl_print_completions_horizontally, 0 },
+ { "revert-all-at-newline", &_rl_revert_all_at_newline, 0 },
+ { "show-all-if-ambiguous", &_rl_complete_show_all, 0 },
+ { "show-all-if-unmodified", &_rl_complete_show_unmodified, 0 },
+ { "show-mode-in-prompt", &_rl_show_mode_in_prompt, 0 },
+ { "skip-completed-text", &_rl_skip_completed_text, 0 },
+#if defined (VISIBLE_STATS)
+ { "visible-stats", &rl_visible_stats, 0 },
+#endif /* VISIBLE_STATS */
+ { (char *)NULL, (int *)NULL, 0 }
+};
+
+static int
+find_boolean_var (const char *name)
+{
+ register int i;
+
+ for (i = 0; boolean_varlist[i].name; i++)
+ if (_rl_stricmp (name, boolean_varlist[i].name) == 0)
+ return i;
+ return -1;
+}
+
+static const char *
+boolean_varname (int i)
+{
+ return ((i >= 0) ? boolean_varlist[i].name : (char *)NULL);
+}
+
+/* Hooks for handling special boolean variables, where a
+ function needs to be called or another variable needs
+ to be changed when they're changed. */
+static void
+hack_special_boolean_var (int i)
+{
+ const char *name;
+
+ name = boolean_varlist[i].name;
+
+ if (_rl_stricmp (name, "blink-matching-paren") == 0)
+ _rl_enable_paren_matching (rl_blink_matching_paren);
+ else if (_rl_stricmp (name, "prefer-visible-bell") == 0)
+ {
+ if (_rl_prefer_visible_bell)
+ _rl_bell_preference = VISIBLE_BELL;
+ else
+ _rl_bell_preference = AUDIBLE_BELL;
+ }
+ else if (_rl_stricmp (name, "show-mode-in-prompt") == 0)
+ _rl_reset_prompt ();
+ else if (_rl_stricmp (name, "enable-bracketed-paste") == 0)
+ _rl_enable_active_region = _rl_enable_bracketed_paste;
+}
+
+typedef int _rl_sv_func_t PARAMS((const char *));
+
+/* These *must* correspond to the array indices for the appropriate
+ string variable. (Though they're not used right now.) */
+#define V_BELLSTYLE 0
+#define V_COMBEGIN 1
+#define V_EDITMODE 2
+#define V_ISRCHTERM 3
+#define V_KEYMAP 4
+
+#define V_STRING 1
+#define V_INT 2
+
+/* Forward declarations */
+static int sv_bell_style PARAMS((const char *));
+static int sv_combegin PARAMS((const char *));
+static int sv_dispprefix PARAMS((const char *));
+static int sv_compquery PARAMS((const char *));
+static int sv_compwidth PARAMS((const char *));
+static int sv_editmode PARAMS((const char *));
+static int sv_emacs_modestr PARAMS((const char *));
+static int sv_histsize PARAMS((const char *));
+static int sv_isrchterm PARAMS((const char *));
+static int sv_keymap PARAMS((const char *));
+static int sv_seqtimeout PARAMS((const char *));
+static int sv_viins_modestr PARAMS((const char *));
+static int sv_vicmd_modestr PARAMS((const char *));
+
+static const struct {
+ const char * const name;
+ int flags;
+ _rl_sv_func_t *set_func;
+} string_varlist[] = {
+ { "bell-style", V_STRING, sv_bell_style },
+ { "comment-begin", V_STRING, sv_combegin },
+ { "completion-display-width", V_INT, sv_compwidth },
+ { "completion-prefix-display-length", V_INT, sv_dispprefix },
+ { "completion-query-items", V_INT, sv_compquery },
+ { "editing-mode", V_STRING, sv_editmode },
+ { "emacs-mode-string", V_STRING, sv_emacs_modestr },
+ { "history-size", V_INT, sv_histsize },
+ { "isearch-terminators", V_STRING, sv_isrchterm },
+ { "keymap", V_STRING, sv_keymap },
+ { "keyseq-timeout", V_INT, sv_seqtimeout },
+ { "vi-cmd-mode-string", V_STRING, sv_vicmd_modestr },
+ { "vi-ins-mode-string", V_STRING, sv_viins_modestr },
+ { (char *)NULL, 0, (_rl_sv_func_t *)0 }
+};
+
+static int
+find_string_var (const char *name)
+{
+ register int i;
+
+ for (i = 0; string_varlist[i].name; i++)
+ if (_rl_stricmp (name, string_varlist[i].name) == 0)
+ return i;
+ return -1;
+}
+
+static const char *
+string_varname (int i)
+{
+ return ((i >= 0) ? string_varlist[i].name : (char *)NULL);
+}
+
+/* A boolean value that can appear in a `set variable' command is true if
+ the value is null or empty, `on' (case-insensitive), or "1". All other
+ values result in 0 (false). */
+static int
+bool_to_int (const char *value)
+{
+ return (value == 0 || *value == '\0' ||
+ (_rl_stricmp (value, "on") == 0) ||
+ (value[0] == '1' && value[1] == '\0'));
+}
+
+char *
+rl_variable_value (const char *name)
+{
+ register int i;
+
+ /* Check for simple variables first. */
+ i = find_boolean_var (name);
+ if (i >= 0)
+ return (*boolean_varlist[i].value ? "on" : "off");
+
+ i = find_string_var (name);
+ if (i >= 0)
+ return (_rl_get_string_variable_value (string_varlist[i].name));
+
+ /* Unknown variable names return NULL. */
+ return (char *)NULL;
+}
+
+int
+rl_variable_bind (const char *name, const char *value)
+{
+ register int i;
+ int v;
+
+ /* Check for simple variables first. */
+ i = find_boolean_var (name);
+ if (i >= 0)
+ {
+ *boolean_varlist[i].value = bool_to_int (value);
+ if (boolean_varlist[i].flags & V_SPECIAL)
+ hack_special_boolean_var (i);
+ return 0;
+ }
+
+ i = find_string_var (name);
+
+ /* For the time being, string names without a handler function are simply
+ ignored. */
+ if (i < 0 || string_varlist[i].set_func == 0)
+ {
+ if (i < 0)
+ _rl_init_file_error ("%s: unknown variable name", name);
+ return 0;
+ }
+
+ v = (*string_varlist[i].set_func) (value);
+ if (v != 0)
+ _rl_init_file_error ("%s: could not set value to `%s'", name, value);
+ return v;
+}
+
+static int
+sv_editmode (const char *value)
+{
+ if (_rl_strnicmp (value, "vi", 2) == 0)
+ {
+#if defined (VI_MODE)
+ _rl_keymap = vi_insertion_keymap;
+ rl_editing_mode = vi_mode;
+#endif /* VI_MODE */
+ return 0;
+ }
+ else if (_rl_strnicmp (value, "emacs", 5) == 0)
+ {
+ _rl_keymap = emacs_standard_keymap;
+ rl_editing_mode = emacs_mode;
+ return 0;
+ }
+ return 1;
+}
+
+static int
+sv_combegin (const char *value)
+{
+ if (value && *value)
+ {
+ FREE (_rl_comment_begin);
+ _rl_comment_begin = savestring (value);
+ return 0;
+ }
+ return 1;
+}
+
+static int
+sv_dispprefix (const char *value)
+{
+ int nval = 0;
+
+ if (value && *value)
+ {
+ nval = atoi (value);
+ if (nval < 0)
+ nval = 0;
+ }
+ _rl_completion_prefix_display_length = nval;
+ return 0;
+}
+
+static int
+sv_compquery (const char *value)
+{
+ int nval = 100;
+
+ if (value && *value)
+ {
+ nval = atoi (value);
+ if (nval < 0)
+ nval = 0;
+ }
+ rl_completion_query_items = nval;
+ return 0;
+}
+
+static int
+sv_compwidth (const char *value)
+{
+ int nval = -1;
+
+ if (value && *value)
+ nval = atoi (value);
+
+ _rl_completion_columns = nval;
+ return 0;
+}
+
+static int
+sv_histsize (const char *value)
+{
+ int nval;
+
+ nval = 500;
+ if (value && *value)
+ {
+ nval = atoi (value);
+ if (nval < 0)
+ {
+ unstifle_history ();
+ return 0;
+ }
+ }
+ stifle_history (nval);
+ return 0;
+}
+
+static int
+sv_keymap (const char *value)
+{
+ Keymap kmap;
+
+ kmap = rl_get_keymap_by_name (value);
+ if (kmap)
+ {
+ rl_set_keymap (kmap);
+ return 0;
+ }
+ return 1;
+}
+
+static int
+sv_seqtimeout (const char *value)
+{
+ int nval;
+
+ nval = 0;
+ if (value && *value)
+ {
+ nval = atoi (value);
+ if (nval < 0)
+ nval = 0;
+ }
+ _rl_keyseq_timeout = nval;
+ return 0;
+}
+
+static int
+sv_bell_style (const char *value)
+{
+ if (value == 0 || *value == '\0')
+ _rl_bell_preference = AUDIBLE_BELL;
+ else if (_rl_stricmp (value, "none") == 0 || _rl_stricmp (value, "off") == 0)
+ _rl_bell_preference = NO_BELL;
+ else if (_rl_stricmp (value, "audible") == 0 || _rl_stricmp (value, "on") == 0)
+ _rl_bell_preference = AUDIBLE_BELL;
+ else if (_rl_stricmp (value, "visible") == 0)
+ _rl_bell_preference = VISIBLE_BELL;
+ else
+ return 1;
+ return 0;
+}
+
+static int
+sv_isrchterm (const char *value)
+{
+ int beg, end, delim;
+ char *v;
+
+ if (value == 0)
+ return 1;
+
+ /* Isolate the value and translate it into a character string. */
+ v = savestring (value);
+ FREE (_rl_isearch_terminators);
+ if (v[0] == '"' || v[0] == '\'')
+ {
+ delim = v[0];
+ for (beg = end = 1; v[end] && v[end] != delim; end++)
+ ;
+ }
+ else
+ {
+ for (beg = end = 0; v[end] && whitespace (v[end]) == 0; end++)
+ ;
+ }
+
+ v[end] = '\0';
+
+ /* The value starts at v + beg. Translate it into a character string. */
+ _rl_isearch_terminators = (char *)xmalloc (2 * strlen (v) + 1);
+ rl_translate_keyseq (v + beg, _rl_isearch_terminators, &end);
+ _rl_isearch_terminators[end] = '\0';
+
+ xfree (v);
+ return 0;
+}
+
+extern char *_rl_emacs_mode_str;
+
+static int
+sv_emacs_modestr (const char *value)
+{
+ if (value && *value)
+ {
+ FREE (_rl_emacs_mode_str);
+ _rl_emacs_mode_str = (char *)xmalloc (2 * strlen (value) + 1);
+ rl_translate_keyseq (value, _rl_emacs_mode_str, &_rl_emacs_modestr_len);
+ _rl_emacs_mode_str[_rl_emacs_modestr_len] = '\0';
+ return 0;
+ }
+ else if (value)
+ {
+ FREE (_rl_emacs_mode_str);
+ _rl_emacs_mode_str = (char *)xmalloc (1);
+ _rl_emacs_mode_str[_rl_emacs_modestr_len = 0] = '\0';
+ return 0;
+ }
+ else if (value == 0)
+ {
+ FREE (_rl_emacs_mode_str);
+ _rl_emacs_mode_str = 0; /* prompt_modestr does the right thing */
+ _rl_emacs_modestr_len = 0;
+ return 0;
+ }
+ return 1;
+}
+
+static int
+sv_viins_modestr (const char *value)
+{
+ if (value && *value)
+ {
+ FREE (_rl_vi_ins_mode_str);
+ _rl_vi_ins_mode_str = (char *)xmalloc (2 * strlen (value) + 1);
+ rl_translate_keyseq (value, _rl_vi_ins_mode_str, &_rl_vi_ins_modestr_len);
+ _rl_vi_ins_mode_str[_rl_vi_ins_modestr_len] = '\0';
+ return 0;
+ }
+ else if (value)
+ {
+ FREE (_rl_vi_ins_mode_str);
+ _rl_vi_ins_mode_str = (char *)xmalloc (1);
+ _rl_vi_ins_mode_str[_rl_vi_ins_modestr_len = 0] = '\0';
+ return 0;
+ }
+ else if (value == 0)
+ {
+ FREE (_rl_vi_ins_mode_str);
+ _rl_vi_ins_mode_str = 0; /* prompt_modestr does the right thing */
+ _rl_vi_ins_modestr_len = 0;
+ return 0;
+ }
+ return 1;
+}
+
+static int
+sv_vicmd_modestr (const char *value)
+{
+ if (value && *value)
+ {
+ FREE (_rl_vi_cmd_mode_str);
+ _rl_vi_cmd_mode_str = (char *)xmalloc (2 * strlen (value) + 1);
+ rl_translate_keyseq (value, _rl_vi_cmd_mode_str, &_rl_vi_cmd_modestr_len);
+ _rl_vi_cmd_mode_str[_rl_vi_cmd_modestr_len] = '\0';
+ return 0;
+ }
+ else if (value)
+ {
+ FREE (_rl_vi_cmd_mode_str);
+ _rl_vi_cmd_mode_str = (char *)xmalloc (1);
+ _rl_vi_cmd_mode_str[_rl_vi_cmd_modestr_len = 0] = '\0';
+ return 0;
+ }
+ else if (value == 0)
+ {
+ FREE (_rl_vi_cmd_mode_str);
+ _rl_vi_cmd_mode_str = 0; /* prompt_modestr does the right thing */
+ _rl_vi_cmd_modestr_len = 0;
+ return 0;
+ }
+ return 1;
+}
+
+/* Return the character which matches NAME.
+ For example, `Space' returns ' '. */
+
+typedef struct {
+ const char * const name;
+ int value;
+} assoc_list;
+
+static const assoc_list name_key_alist[] = {
+ { "DEL", 0x7f },
+ { "ESC", '\033' },
+ { "Escape", '\033' },
+ { "LFD", '\n' },
+ { "Newline", '\n' },
+ { "RET", '\r' },
+ { "Return", '\r' },
+ { "Rubout", 0x7f },
+ { "SPC", ' ' },
+ { "Space", ' ' },
+ { "Tab", 0x09 },
+ { (char *)0x0, 0 }
+};
+
+static int
+glean_key_from_name (char *name)
+{
+ register int i;
+
+ for (i = 0; name_key_alist[i].name; i++)
+ if (_rl_stricmp (name, name_key_alist[i].name) == 0)
+ return (name_key_alist[i].value);
+
+ return (*(unsigned char *)name); /* XXX was return (*name) */
+}
+
+/* Auxiliary functions to manage keymaps. */
+struct name_and_keymap {
+ char *name;
+ Keymap map;
+};
+
+static struct name_and_keymap builtin_keymap_names[] = {
+ { "emacs", emacs_standard_keymap },
+ { "emacs-standard", emacs_standard_keymap },
+ { "emacs-meta", emacs_meta_keymap },
+ { "emacs-ctlx", emacs_ctlx_keymap },
+#if defined (VI_MODE)
+ { "vi", vi_movement_keymap },
+ { "vi-move", vi_movement_keymap },
+ { "vi-command", vi_movement_keymap },
+ { "vi-insert", vi_insertion_keymap },
+#endif /* VI_MODE */
+ { (char *)0x0, (Keymap)0x0 }
+};
+
+/* -1 for NULL entry */
+#define NUM_BUILTIN_KEYMAPS (sizeof (builtin_keymap_names) / sizeof (builtin_keymap_names[0]) - 1)
+
+static struct name_and_keymap *keymap_names = builtin_keymap_names;
+
+static int
+_rl_get_keymap_by_name (const char *name)
+{
+ register int i;
+
+ for (i = 0; keymap_names[i].name; i++)
+ if (_rl_stricmp (name, keymap_names[i].name) == 0)
+ return (i);
+ return -1;
+}
+
+Keymap
+rl_get_keymap_by_name (const char *name)
+{
+ int i;
+
+ i = _rl_get_keymap_by_name (name);
+ return ((i >= 0) ? keymap_names[i].map : (Keymap) NULL);
+}
+
+static int
+_rl_get_keymap_by_map (Keymap map)
+{
+ register int i;
+
+ for (i = 0; keymap_names[i].name; i++)
+ if (map == keymap_names[i].map)
+ return (i);
+ return -1;
+}
+
+char *
+rl_get_keymap_name (Keymap map)
+{
+ int i;
+
+ i = _rl_get_keymap_by_map (map);
+ return ((i >= 0) ? keymap_names[i].name : (char *)NULL);
+}
+
+int
+rl_set_keymap_name (const char *name, Keymap map)
+{
+ int i, ni, mi;
+
+ /* First check whether or not we're trying to rename a builtin keymap */
+ mi = _rl_get_keymap_by_map (map);
+ if (mi >= 0 && mi < NUM_BUILTIN_KEYMAPS)
+ return -1;
+
+ /* Then reject attempts to set one of the builtin names to a new map */
+ ni = _rl_get_keymap_by_name (name);
+ if (ni >= 0 && ni < NUM_BUILTIN_KEYMAPS)
+ return -1;
+
+ /* Renaming a keymap we already added */
+ if (mi >= 0) /* XXX - could be >= NUM_BUILTIN_KEYMAPS */
+ {
+ xfree (keymap_names[mi].name);
+ keymap_names[mi].name = savestring (name);
+ return mi;
+ }
+
+ /* Associating new keymap with existing name */
+ if (ni >= 0)
+ {
+ keymap_names[ni].map = map;
+ return ni;
+ }
+
+ for (i = 0; keymap_names[i].name; i++)
+ ;
+
+ if (keymap_names == builtin_keymap_names)
+ {
+ keymap_names = xmalloc ((i + 2) * sizeof (struct name_and_keymap));
+ memcpy (keymap_names, builtin_keymap_names, i * sizeof (struct name_and_keymap));
+ }
+ else
+ keymap_names = xrealloc (keymap_names, (i + 2) * sizeof (struct name_and_keymap));
+
+ keymap_names[i].name = savestring (name);
+ keymap_names[i].map = map;
+
+ keymap_names[i+1].name = NULL;
+ keymap_names[i+1].map = NULL;
+
+ return i;
+}
+
+void
+rl_set_keymap (Keymap map)
+{
+ if (map)
+ _rl_keymap = map;
+}
+
+Keymap
+rl_get_keymap (void)
+{
+ return (_rl_keymap);
+}
+
+void
+rl_set_keymap_from_edit_mode (void)
+{
+ if (rl_editing_mode == emacs_mode)
+ _rl_keymap = emacs_standard_keymap;
+#if defined (VI_MODE)
+ else if (rl_editing_mode == vi_mode)
+ _rl_keymap = vi_insertion_keymap;
+#endif /* VI_MODE */
+}
+
+char *
+rl_get_keymap_name_from_edit_mode (void)
+{
+ if (rl_editing_mode == emacs_mode)
+ return "emacs";
+#if defined (VI_MODE)
+ else if (rl_editing_mode == vi_mode)
+ return "vi";
+#endif /* VI_MODE */
+ else
+ return "none";
+}
+
+/* **************************************************************** */
+/* */
+/* Key Binding and Function Information */
+/* */
+/* **************************************************************** */
+
+/* Each of the following functions produces information about the
+ state of keybindings and functions known to Readline. The info
+ is always printed to rl_outstream, and in such a way that it can
+ be read back in (i.e., passed to rl_parse_and_bind ()). */
+
+/* Print the names of functions known to Readline. */
+void
+rl_list_funmap_names (void)
+{
+ register int i;
+ const char **funmap_names;
+
+ funmap_names = rl_funmap_names ();
+
+ if (!funmap_names)
+ return;
+
+ for (i = 0; funmap_names[i]; i++)
+ fprintf (rl_outstream, "%s\n", funmap_names[i]);
+
+ xfree (funmap_names);
+}
+
+static char *
+_rl_get_keyname (int key)
+{
+ char *keyname;
+ int i, c;
+
+ keyname = (char *)xmalloc (8);
+
+ c = key;
+ /* Since this is going to be used to write out keysequence-function
+ pairs for possible inclusion in an inputrc file, we don't want to
+ do any special meta processing on KEY. */
+
+#if 1
+ /* XXX - Experimental */
+ /* We might want to do this, but the old version of the code did not. */
+
+ /* If this is an escape character, we don't want to do any more processing.
+ Just add the special ESC key sequence and return. */
+ if (c == ESC)
+ {
+ keyname[0] = '\\';
+ keyname[1] = 'e';
+ keyname[2] = '\0';
+ return keyname;
+ }
+#endif
+
+ /* RUBOUT is translated directly into \C-? */
+ if (key == RUBOUT)
+ {
+ keyname[0] = '\\';
+ keyname[1] = 'C';
+ keyname[2] = '-';
+ keyname[3] = '?';
+ keyname[4] = '\0';
+ return keyname;
+ }
+
+ i = 0;
+ /* Now add special prefixes needed for control characters. This can
+ potentially change C. */
+ if (CTRL_CHAR (c))
+ {
+ keyname[i++] = '\\';
+ keyname[i++] = 'C';
+ keyname[i++] = '-';
+ c = _rl_to_lower (UNCTRL (c));
+ }
+
+ /* XXX experimental code. Turn the characters that are not ASCII or
+ ISO Latin 1 (128 - 159) into octal escape sequences (\200 - \237).
+ This changes C. */
+ if (c >= 128 && c <= 159)
+ {
+ keyname[i++] = '\\';
+ keyname[i++] = '2';
+ c -= 128;
+ keyname[i++] = (c / 8) + '0';
+ c = (c % 8) + '0';
+ }
+
+ /* Now, if the character needs to be quoted with a backslash, do that. */
+ if (c == '\\' || c == '"')
+ keyname[i++] = '\\';
+
+ /* Now add the key, terminate the string, and return it. */
+ keyname[i++] = (char) c;
+ keyname[i] = '\0';
+
+ return keyname;
+}
+
+/* Return a NULL terminated array of strings which represent the key
+ sequences that are used to invoke FUNCTION in MAP. */
+char **
+rl_invoking_keyseqs_in_map (rl_command_func_t *function, Keymap map)
+{
+ register int key;
+ char **result;
+ int result_index, result_size;
+
+ result = (char **)NULL;
+ result_index = result_size = 0;
+
+ for (key = 0; key < KEYMAP_SIZE; key++)
+ {
+ switch (map[key].type)
+ {
+ case ISMACR:
+ /* Macros match, if, and only if, the pointers are identical.
+ Thus, they are treated exactly like functions in here. */
+ case ISFUNC:
+ /* If the function in the keymap is the one we are looking for,
+ then add the current KEY to the list of invoking keys. */
+ if (map[key].function == function)
+ {
+ char *keyname;
+
+ keyname = _rl_get_keyname (key);
+
+ if (result_index + 2 > result_size)
+ {
+ result_size += 10;
+ result = (char **)xrealloc (result, result_size * sizeof (char *));
+ }
+
+ result[result_index++] = keyname;
+ result[result_index] = (char *)NULL;
+ }
+ break;
+
+ case ISKMAP:
+ {
+ char **seqs;
+ register int i;
+
+ /* Find the list of keyseqs in this map which have FUNCTION as
+ their target. Add the key sequences found to RESULT. */
+ if (map[key].function)
+ seqs =
+ rl_invoking_keyseqs_in_map (function, FUNCTION_TO_KEYMAP (map, key));
+ else
+ break;
+
+ if (seqs == 0)
+ break;
+
+ for (i = 0; seqs[i]; i++)
+ {
+ char *keyname = (char *)xmalloc (6 + strlen (seqs[i]));
+
+ if (key == ESC)
+ {
+ /* If ESC is the meta prefix and we're converting chars
+ with the eighth bit set to ESC-prefixed sequences, then
+ we can use \M-. Otherwise we need to use the sequence
+ for ESC. */
+ if (_rl_convert_meta_chars_to_ascii && map[ESC].type == ISKMAP)
+ sprintf (keyname, "\\M-");
+ else
+ sprintf (keyname, "\\e");
+ }
+ else
+ {
+ int c = key, l = 0;
+ if (CTRL_CHAR (c) || c == RUBOUT)
+ {
+ keyname[l++] = '\\';
+ keyname[l++] = 'C';
+ keyname[l++] = '-';
+ c = (c == RUBOUT) ? '?' : _rl_to_lower (UNCTRL (c));
+ }
+
+ if (c == '\\' || c == '"')
+ keyname[l++] = '\\';
+
+ keyname[l++] = (char) c;
+ keyname[l++] = '\0';
+ }
+
+ strcat (keyname, seqs[i]);
+ xfree (seqs[i]);
+
+ if (result_index + 2 > result_size)
+ {
+ result_size += 10;
+ result = (char **)xrealloc (result, result_size * sizeof (char *));
+ }
+
+ result[result_index++] = keyname;
+ result[result_index] = (char *)NULL;
+ }
+
+ xfree (seqs);
+ }
+ break;
+ }
+ }
+ return (result);
+}
+
+/* Return a NULL terminated array of strings which represent the key
+ sequences that can be used to invoke FUNCTION using the current keymap. */
+char **
+rl_invoking_keyseqs (rl_command_func_t *function)
+{
+ return (rl_invoking_keyseqs_in_map (function, _rl_keymap));
+}
+
+/* Print all of the functions and their bindings to rl_outstream. If
+ PRINT_READABLY is non-zero, then print the output in such a way
+ that it can be read back in. */
+void
+rl_function_dumper (int print_readably)
+{
+ register int i;
+ const char **names;
+ const char *name;
+
+ names = rl_funmap_names ();
+
+ fprintf (rl_outstream, "\n");
+
+ for (i = 0; name = names[i]; i++)
+ {
+ rl_command_func_t *function;
+ char **invokers;
+
+ function = rl_named_function (name);
+ invokers = rl_invoking_keyseqs_in_map (function, _rl_keymap);
+
+ if (print_readably)
+ {
+ if (!invokers)
+ fprintf (rl_outstream, "# %s (not bound)\n", name);
+ else
+ {
+ register int j;
+
+ for (j = 0; invokers[j]; j++)
+ {
+ fprintf (rl_outstream, "\"%s\": %s\n",
+ invokers[j], name);
+ xfree (invokers[j]);
+ }
+
+ xfree (invokers);
+ }
+ }
+ else
+ {
+ if (!invokers)
+ fprintf (rl_outstream, "%s is not bound to any keys\n",
+ name);
+ else
+ {
+ register int j;
+
+ fprintf (rl_outstream, "%s can be found on ", name);
+
+ for (j = 0; invokers[j] && j < 5; j++)
+ {
+ fprintf (rl_outstream, "\"%s\"%s", invokers[j],
+ invokers[j + 1] ? ", " : ".\n");
+ }
+
+ if (j == 5 && invokers[j])
+ fprintf (rl_outstream, "...\n");
+
+ for (j = 0; invokers[j]; j++)
+ xfree (invokers[j]);
+
+ xfree (invokers);
+ }
+ }
+ }
+
+ xfree (names);
+}
+
+/* Print all of the current functions and their bindings to
+ rl_outstream. If an explicit argument is given, then print
+ the output in such a way that it can be read back in. */
+int
+rl_dump_functions (int count, int key)
+{
+ if (rl_dispatching)
+ fprintf (rl_outstream, "\r\n");
+ rl_function_dumper (rl_explicit_arg);
+ rl_on_new_line ();
+ return (0);
+}
+
+static void
+_rl_macro_dumper_internal (int print_readably, Keymap map, char *prefix)
+{
+ register int key;
+ char *keyname, *out;
+ int prefix_len;
+
+ for (key = 0; key < KEYMAP_SIZE; key++)
+ {
+ switch (map[key].type)
+ {
+ case ISMACR:
+ keyname = _rl_get_keyname (key);
+ out = _rl_untranslate_macro_value ((char *)map[key].function, 0);
+
+ if (print_readably)
+ fprintf (rl_outstream, "\"%s%s\": \"%s\"\n", prefix ? prefix : "",
+ keyname,
+ out ? out : "");
+ else
+ fprintf (rl_outstream, "%s%s outputs %s\n", prefix ? prefix : "",
+ keyname,
+ out ? out : "");
+ xfree (keyname);
+ xfree (out);
+ break;
+ case ISFUNC:
+ break;
+ case ISKMAP:
+ prefix_len = prefix ? strlen (prefix) : 0;
+ if (key == ESC)
+ {
+ keyname = (char *)xmalloc (3 + prefix_len);
+ if (prefix)
+ strcpy (keyname, prefix);
+ keyname[prefix_len] = '\\';
+ keyname[prefix_len + 1] = 'e';
+ keyname[prefix_len + 2] = '\0';
+ }
+ else
+ {
+ keyname = _rl_get_keyname (key);
+ if (prefix)
+ {
+ out = (char *)xmalloc (strlen (keyname) + prefix_len + 1);
+ strcpy (out, prefix);
+ strcpy (out + prefix_len, keyname);
+ xfree (keyname);
+ keyname = out;
+ }
+ }
+
+ _rl_macro_dumper_internal (print_readably, FUNCTION_TO_KEYMAP (map, key), keyname);
+ xfree (keyname);
+ break;
+ }
+ }
+}
+
+void
+rl_macro_dumper (int print_readably)
+{
+ _rl_macro_dumper_internal (print_readably, _rl_keymap, (char *)NULL);
+}
+
+int
+rl_dump_macros (int count, int key)
+{
+ if (rl_dispatching)
+ fprintf (rl_outstream, "\r\n");
+ rl_macro_dumper (rl_explicit_arg);
+ rl_on_new_line ();
+ return (0);
+}
+
+static char *
+_rl_get_string_variable_value (const char *name)
+{
+ static char numbuf[32];
+ char *ret;
+
+ if (_rl_stricmp (name, "bell-style") == 0)
+ {
+ switch (_rl_bell_preference)
+ {
+ case NO_BELL:
+ return "none";
+ case VISIBLE_BELL:
+ return "visible";
+ case AUDIBLE_BELL:
+ default:
+ return "audible";
+ }
+ }
+ else if (_rl_stricmp (name, "comment-begin") == 0)
+ return (_rl_comment_begin ? _rl_comment_begin : RL_COMMENT_BEGIN_DEFAULT);
+ else if (_rl_stricmp (name, "completion-display-width") == 0)
+ {
+ sprintf (numbuf, "%d", _rl_completion_columns);
+ return (numbuf);
+ }
+ else if (_rl_stricmp (name, "completion-prefix-display-length") == 0)
+ {
+ sprintf (numbuf, "%d", _rl_completion_prefix_display_length);
+ return (numbuf);
+ }
+ else if (_rl_stricmp (name, "completion-query-items") == 0)
+ {
+ sprintf (numbuf, "%d", rl_completion_query_items);
+ return (numbuf);
+ }
+ else if (_rl_stricmp (name, "editing-mode") == 0)
+ return (rl_get_keymap_name_from_edit_mode ());
+ else if (_rl_stricmp (name, "history-size") == 0)
+ {
+ sprintf (numbuf, "%d", history_is_stifled() ? history_max_entries : 0);
+ return (numbuf);
+ }
+ else if (_rl_stricmp (name, "isearch-terminators") == 0)
+ {
+ if (_rl_isearch_terminators == 0)
+ return 0;
+ ret = _rl_untranslate_macro_value (_rl_isearch_terminators, 0);
+ if (ret)
+ {
+ strncpy (numbuf, ret, sizeof (numbuf) - 1);
+ xfree (ret);
+ numbuf[sizeof(numbuf) - 1] = '\0';
+ }
+ else
+ numbuf[0] = '\0';
+ return numbuf;
+ }
+ else if (_rl_stricmp (name, "keymap") == 0)
+ {
+ ret = rl_get_keymap_name (_rl_keymap);
+ if (ret == 0)
+ ret = rl_get_keymap_name_from_edit_mode ();
+ return (ret ? ret : "none");
+ }
+ else if (_rl_stricmp (name, "keyseq-timeout") == 0)
+ {
+ sprintf (numbuf, "%d", _rl_keyseq_timeout);
+ return (numbuf);
+ }
+ else if (_rl_stricmp (name, "emacs-mode-string") == 0)
+ return (_rl_emacs_mode_str ? _rl_emacs_mode_str : RL_EMACS_MODESTR_DEFAULT);
+ else if (_rl_stricmp (name, "vi-cmd-mode-string") == 0)
+ return (_rl_vi_cmd_mode_str ? _rl_vi_cmd_mode_str : RL_VI_CMD_MODESTR_DEFAULT);
+ else if (_rl_stricmp (name, "vi-ins-mode-string") == 0)
+ return (_rl_vi_ins_mode_str ? _rl_vi_ins_mode_str : RL_VI_INS_MODESTR_DEFAULT);
+ else
+ return (0);
+}
+
+void
+rl_variable_dumper (int print_readably)
+{
+ int i;
+ char *v;
+
+ for (i = 0; boolean_varlist[i].name; i++)
+ {
+ if (print_readably)
+ fprintf (rl_outstream, "set %s %s\n", boolean_varlist[i].name,
+ *boolean_varlist[i].value ? "on" : "off");
+ else
+ fprintf (rl_outstream, "%s is set to `%s'\n", boolean_varlist[i].name,
+ *boolean_varlist[i].value ? "on" : "off");
+ }
+
+ for (i = 0; string_varlist[i].name; i++)
+ {
+ v = _rl_get_string_variable_value (string_varlist[i].name);
+ if (v == 0) /* _rl_isearch_terminators can be NULL */
+ continue;
+ if (print_readably)
+ fprintf (rl_outstream, "set %s %s\n", string_varlist[i].name, v);
+ else
+ fprintf (rl_outstream, "%s is set to `%s'\n", string_varlist[i].name, v);
+ }
+}
+
+/* Print all of the current variables and their values to
+ rl_outstream. If an explicit argument is given, then print
+ the output in such a way that it can be read back in. */
+int
+rl_dump_variables (int count, int key)
+{
+ if (rl_dispatching)
+ fprintf (rl_outstream, "\r\n");
+ rl_variable_dumper (rl_explicit_arg);
+ rl_on_new_line ();
+ return (0);
+}
+
+/* Return non-zero if any members of ARRAY are a substring in STRING. */
+static int
+substring_member_of_array (const char *string, const char * const *array)
+{
+ while (*array)
+ {
+ if (_rl_strindex (string, *array))
+ return (1);
+ array++;
+ }
+ return (0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 23:48:20 +0000