/* readline.c -- a general facility for reading lines of input
with emacs style editing and completion. */
-/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of the GNU Readline Library, a library for
reading lines of text with interactive input and history editing.
/* System-specific feature definitions and include files. */
#include "rldefs.h"
+#include "rlmbutil.h"
#if defined (__EMX__)
# define INCL_DOSPROCESS
#include "xmalloc.h"
#ifndef RL_LIBRARY_VERSION
-# define RL_LIBRARY_VERSION "4.2a"
+# define RL_LIBRARY_VERSION "4.3"
#endif
#ifndef RL_READLINE_VERSION
-# define RL_READLINE_VERSION 0x0402
+# define RL_READLINE_VERSION 0x0403
#endif
-/* Evaluates its arguments multiple times. */
-#define SWAP(s, e) do { int t; t = s; s = e; e = t; } while (0)
+extern void _rl_free_history_entry PARAMS((HIST_ENTRY *));
/* Forward declarations used in this file. */
-void _rl_free_history_entry PARAMS((HIST_ENTRY *));
-
static char *readline_internal PARAMS((void));
static void readline_initialize_everything PARAMS((void));
-static void start_using_history PARAMS((void));
+
+static void bind_arrow_keys_internal PARAMS((Keymap));
static void bind_arrow_keys PARAMS((void));
-static int rl_change_case PARAMS((int, int));
static void readline_default_bindings PARAMS((void));
/* The current style of editing. */
int rl_editing_mode = emacs_mode;
+/* The current insert mode: input (the default) or overwrite */
+int rl_insert_mode = RL_IM_DEFAULT;
+
/* Non-zero if we called this function from _rl_dispatch(). It's present
so functions can find out whether they were called from a key binding
or directly from an application. */
rather than as a meta-prefixed escape sequence. */
int _rl_output_meta_chars = 0;
-/* If non-zero, rl_get_previous_history and rl_get_next_history attempt
- to preserve the value of rl_point from line to line. */
-int _rl_history_preserve_point = 0;
-
-/* Saved target point for when _rl_history_preserve_point is set. Special
- value of -1 means that point is at the end of the line. */
-static int _rl_history_saved_point = -1;
-
/* **************************************************************** */
/* */
/* Top Level Functions */
if (rl_startup_hook)
(*rl_startup_hook) ();
- if (readline_echoing_p == 0)
+ /* If we're not echoing, we still want to at least print a prompt, because
+ rl_redisplay will not do it for us. If the calling application has a
+ custom redisplay function, though, let that function handle it. */
+ if (readline_echoing_p == 0 && rl_redisplay_function == rl_redisplay)
{
if (rl_prompt && rl_already_prompted == 0)
{
else
rl_on_new_line ();
(*rl_redisplay_function) ();
+ }
+
#if defined (VI_MODE)
- if (rl_editing_mode == vi_mode)
- rl_vi_insertion_mode (1, 0);
+ if (rl_editing_mode == vi_mode)
+ rl_vi_insertion_mode (1, 0);
#endif /* VI_MODE */
- }
if (rl_pre_input_hook)
(*rl_pre_input_hook) ();
if (rl_undo_list)
rl_free_undo_list ();
+ /* Restore normal cursor, if available. */
+ _rl_set_insert_mode (RL_IM_INSERT, 0);
+
return (eof ? (char *)NULL : savestring (the_line));
}
void
_rl_init_line_state ()
{
- rl_point = rl_end = 0;
+ rl_point = rl_end = rl_mark = 0;
the_line = rl_line_buffer;
the_line[0] = 0;
}
register int key;
Keymap map;
{
+ return _rl_dispatch_subseq (key, map, 0);
+}
+
+int
+_rl_dispatch_subseq (key, map, got_subseq)
+ register int key;
+ Keymap map;
+ int got_subseq;
+{
int r, newkey;
char *macro;
rl_command_func_t *func;
{
if (map[ESC].type == ISKMAP)
{
- if (_rl_defining_kbd_macro)
+ if (RL_ISSTATE (RL_STATE_MACRODEF))
_rl_add_macro_char (ESC);
map = FUNCTION_TO_KEYMAP (map, ESC);
key = UNMETA (key);
return 0;
}
- if (_rl_defining_kbd_macro)
+ if (RL_ISSTATE (RL_STATE_MACRODEF))
_rl_add_macro_char (key);
r = 0;
if (rl_pending_input == 0 && map[key].function != rl_digit_argument)
rl_last_func = map[key].function;
}
+ else if (map[ANYOTHERKEY].function)
+ {
+ /* OK, there's no function bound in this map, but there is a
+ shadow function that was overridden when the current keymap
+ was created. Return -2 to note that. */
+ _rl_unget_char (key);
+ return -2;
+ }
+ else if (got_subseq)
+ {
+ /* Return -1 to note that we're in a subsequence, but we don't
+ have a matching key, nor was one overridden. This means
+ we need to back up the recursion chain and find the last
+ subsequence that is bound to a function. */
+ _rl_unget_char (key);
+ return -1;
+ }
else
{
_rl_abort_internal ();
case ISKMAP:
if (map[key].function != 0)
{
+#if defined (VI_MODE)
+ /* The only way this test will be true is if a subsequence has been
+ bound starting with ESC, generally the arrow keys. What we do is
+ check whether there's input in the queue, which there generally
+ will be if an arrow key has been pressed, and, if there's not,
+ just dispatch to (what we assume is) rl_vi_movement_mode right
+ away. This is essentially an input test with a zero timeout. */
+ if (rl_editing_mode == vi_mode && key == ESC && map == vi_insertion_keymap
+ && _rl_input_queued (0) == 0)
+ return (_rl_dispatch (ANYOTHERKEY, FUNCTION_TO_KEYMAP (map, key)));
+#endif
+
rl_key_sequence_length++;
if (key == ESC)
return -1;
}
- r = _rl_dispatch (newkey, FUNCTION_TO_KEYMAP (map, key));
+ r = _rl_dispatch_subseq (newkey, FUNCTION_TO_KEYMAP (map, key), got_subseq || map[ANYOTHERKEY].function);
+
+ if (r == -2)
+ /* We didn't match anything, and the keymap we're indexed into
+ shadowed a function previously bound to that prefix. Call
+ the function. The recursive call to _rl_dispatch_subseq has
+ already taken care of pushing any necessary input back onto
+ the input queue with _rl_unget_char. */
+ r = _rl_dispatch (ANYOTHERKEY, FUNCTION_TO_KEYMAP (map, key));
+ else if (r && map[ANYOTHERKEY].function)
+ {
+ /* We didn't match (r is probably -1), so return something to
+ tell the caller that it should try ANYOTHERKEY for an
+ overridden function. */
+ _rl_unget_char (key);
+ return -2;
+ }
+ else if (r && got_subseq)
+ {
+ /* OK, back up the chain. */
+ _rl_unget_char (key);
+ return -1;
+ }
}
else
{
RL_UNSETSTATE(RL_STATE_DONE);
/* Tell the history routines what is going on. */
- start_using_history ();
+ _rl_start_using_history ();
/* Make the display buffer match the state of the line. */
rl_reset_line_state ();
_rl_vi_initialize_line ();
#endif
+ /* Each line starts in insert mode (the default). */
+ _rl_set_insert_mode (RL_IM_DEFAULT, 1);
+
return 0;
}
rl_tty_set_default_bindings (_rl_keymap);
}
+/* Bind some common arrow key sequences in MAP. */
static void
-bind_arrow_keys_internal ()
+bind_arrow_keys_internal (map)
+ Keymap map;
{
- rl_command_func_t *f;
+ Keymap xkeymap;
+
+ xkeymap = _rl_keymap;
+ _rl_keymap = map;
#if defined (__MSDOS__)
- f = rl_function_of_keyseq ("\033[0A", _rl_keymap, (int *)NULL);
- if (!f || f == rl_do_lowercase_version)
- {
- _rl_bind_if_unbound ("\033[0A", rl_get_previous_history);
- _rl_bind_if_unbound ("\033[0B", rl_backward);
- _rl_bind_if_unbound ("\033[0C", rl_forward);
- _rl_bind_if_unbound ("\033[0D", rl_get_next_history);
- }
+ _rl_bind_if_unbound ("\033[0A", rl_get_previous_history);
+ _rl_bind_if_unbound ("\033[0B", rl_backward_char);
+ _rl_bind_if_unbound ("\033[0C", rl_forward_char);
+ _rl_bind_if_unbound ("\033[0D", rl_get_next_history);
#endif
-
- f = rl_function_of_keyseq ("\033[A", _rl_keymap, (int *)NULL);
- if (!f || f == rl_do_lowercase_version)
- {
- _rl_bind_if_unbound ("\033[A", rl_get_previous_history);
- _rl_bind_if_unbound ("\033[B", rl_get_next_history);
- _rl_bind_if_unbound ("\033[C", rl_forward);
- _rl_bind_if_unbound ("\033[D", rl_backward);
- }
- f = rl_function_of_keyseq ("\033OA", _rl_keymap, (int *)NULL);
- if (!f || f == rl_do_lowercase_version)
- {
- _rl_bind_if_unbound ("\033OA", rl_get_previous_history);
- _rl_bind_if_unbound ("\033OB", rl_get_next_history);
- _rl_bind_if_unbound ("\033OC", rl_forward);
- _rl_bind_if_unbound ("\033OD", rl_backward);
- }
+ _rl_bind_if_unbound ("\033[A", rl_get_previous_history);
+ _rl_bind_if_unbound ("\033[B", rl_get_next_history);
+ _rl_bind_if_unbound ("\033[C", rl_forward_char);
+ _rl_bind_if_unbound ("\033[D", rl_backward_char);
+ _rl_bind_if_unbound ("\033[H", rl_beg_of_line);
+ _rl_bind_if_unbound ("\033[F", rl_end_of_line);
+
+ _rl_bind_if_unbound ("\033OA", rl_get_previous_history);
+ _rl_bind_if_unbound ("\033OB", rl_get_next_history);
+ _rl_bind_if_unbound ("\033OC", rl_forward_char);
+ _rl_bind_if_unbound ("\033OD", rl_backward_char);
+ _rl_bind_if_unbound ("\033OH", rl_beg_of_line);
+ _rl_bind_if_unbound ("\033OF", rl_end_of_line);
+
+ _rl_keymap = xkeymap;
}
-/* Try and bind the common arrow key prefix after giving termcap and
+/* Try and bind the common arrow key prefixes after giving termcap and
the inputrc file a chance to bind them and create `real' keymaps
for the arrow key prefix. */
static void
bind_arrow_keys ()
{
- Keymap xkeymap;
-
- xkeymap = _rl_keymap;
-
- _rl_keymap = emacs_standard_keymap;
- bind_arrow_keys_internal ();
+ bind_arrow_keys_internal (emacs_standard_keymap);
#if defined (VI_MODE)
- _rl_keymap = vi_movement_keymap;
- bind_arrow_keys_internal ();
+ bind_arrow_keys_internal (vi_movement_keymap);
+ bind_arrow_keys_internal (vi_insertion_keymap);
#endif
-
- _rl_keymap = xkeymap;
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Numeric Arguments */
-/* */
-/* **************************************************************** */
-
-/* Handle C-u style numeric args, as well as M--, and M-digits. */
-static int
-rl_digit_loop ()
-{
- int key, c, sawminus, sawdigits;
-
- rl_save_prompt ();
-
- RL_SETSTATE(RL_STATE_NUMERICARG);
- sawminus = sawdigits = 0;
- while (1)
- {
- if (rl_numeric_arg > 1000000)
- {
- sawdigits = rl_explicit_arg = rl_numeric_arg = 0;
- rl_ding ();
- rl_restore_prompt ();
- rl_clear_message ();
- RL_UNSETSTATE(RL_STATE_NUMERICARG);
- return 1;
- }
- rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg);
- RL_SETSTATE(RL_STATE_MOREINPUT);
- key = c = rl_read_key ();
- RL_UNSETSTATE(RL_STATE_MOREINPUT);
-
- if (c < 0)
- {
- _rl_abort_internal ();
- return -1;
- }
-
- /* If we see a key bound to `universal-argument' after seeing digits,
- it ends the argument but is otherwise ignored. */
- if (_rl_keymap[c].type == ISFUNC &&
- _rl_keymap[c].function == rl_universal_argument)
- {
- if (sawdigits == 0)
- {
- rl_numeric_arg *= 4;
- continue;
- }
- else
- {
- RL_SETSTATE(RL_STATE_MOREINPUT);
- key = rl_read_key ();
- RL_UNSETSTATE(RL_STATE_MOREINPUT);
- rl_restore_prompt ();
- rl_clear_message ();
- RL_UNSETSTATE(RL_STATE_NUMERICARG);
- return (_rl_dispatch (key, _rl_keymap));
- }
- }
-
- c = UNMETA (c);
-
- if (_rl_digit_p (c))
- {
- rl_numeric_arg = rl_explicit_arg ? (rl_numeric_arg * 10) + c - '0' : c - '0';
- sawdigits = rl_explicit_arg = 1;
- }
- else if (c == '-' && rl_explicit_arg == 0)
- {
- rl_numeric_arg = sawminus = 1;
- rl_arg_sign = -1;
- }
- else
- {
- /* Make M-- command equivalent to M--1 command. */
- if (sawminus && rl_numeric_arg == 1 && rl_explicit_arg == 0)
- rl_explicit_arg = 1;
- rl_restore_prompt ();
- rl_clear_message ();
- RL_UNSETSTATE(RL_STATE_NUMERICARG);
- return (_rl_dispatch (key, _rl_keymap));
- }
- }
-
- /*NOTREACHED*/
-}
-
-/* Add the current digit to the argument in progress. */
-int
-rl_digit_argument (ignore, key)
- int ignore, key;
-{
- rl_execute_next (key);
- return (rl_digit_loop ());
-}
-
-/* What to do when you abort reading an argument. */
-int
-rl_discard_argument ()
-{
- rl_ding ();
- rl_clear_message ();
- _rl_init_argument ();
- return 0;
-}
-
-/* Create a default argument. */
-int
-_rl_init_argument ()
-{
- rl_numeric_arg = rl_arg_sign = 1;
- rl_explicit_arg = 0;
- return 0;
-}
-
-/* C-u, universal argument. Multiply the current argument by 4.
- Read a key. If the key has nothing to do with arguments, then
- dispatch on it. If the key is the abort character then abort. */
-int
-rl_universal_argument (count, key)
- int count, key;
-{
- rl_numeric_arg *= 4;
- return (rl_digit_loop ());
-}
-
-/* **************************************************************** */
-/* */
-/* Insert and Delete */
-/* */
-/* **************************************************************** */
-
-/* Insert a string of text into the line at point. This is the only
- way that you should do insertion. rl_insert () calls this
- function. */
-int
-rl_insert_text (string)
- const char *string;
-{
- register int i, l = strlen (string);
-
- if (rl_end + l >= rl_line_buffer_len)
- rl_extend_line_buffer (rl_end + l);
-
- for (i = rl_end; i >= rl_point; i--)
- the_line[i + l] = the_line[i];
- strncpy (the_line + rl_point, string, l);
-
- /* Remember how to undo this if we aren't undoing something. */
- if (!_rl_doing_an_undo)
- {
- /* If possible and desirable, concatenate the undos. */
- if ((l == 1) &&
- rl_undo_list &&
- (rl_undo_list->what == UNDO_INSERT) &&
- (rl_undo_list->end == rl_point) &&
- (rl_undo_list->end - rl_undo_list->start < 20))
- rl_undo_list->end++;
- else
- rl_add_undo (UNDO_INSERT, rl_point, rl_point + l, (char *)NULL);
- }
- rl_point += l;
- rl_end += l;
- the_line[rl_end] = '\0';
- return l;
-}
-
-/* Delete the string between FROM and TO. FROM is
- inclusive, TO is not. */
-int
-rl_delete_text (from, to)
- int from, to;
-{
- register char *text;
- register int diff, i;
-
- /* Fix it if the caller is confused. */
- if (from > to)
- SWAP (from, to);
-
- /* fix boundaries */
- if (to > rl_end)
- {
- to = rl_end;
- if (from > to)
- from = to;
- }
-
- text = rl_copy_text (from, to);
-
- /* Some versions of strncpy() can't handle overlapping arguments. */
- diff = to - from;
- for (i = from; i < rl_end - diff; i++)
- the_line[i] = the_line[i + diff];
-
- /* Remember how to undo this delete. */
- if (_rl_doing_an_undo == 0)
- rl_add_undo (UNDO_DELETE, from, to, text);
- else
- free (text);
-
- rl_end -= diff;
- the_line[rl_end] = '\0';
- return (diff);
-}
-
-/* Fix up point so that it is within the line boundaries after killing
- text. If FIX_MARK_TOO is non-zero, the mark is forced within line
- boundaries also. */
-
-#define _RL_FIX_POINT(x) \
- do { \
- if (x > rl_end) \
- x = rl_end; \
- else if (x < 0) \
- x = 0; \
- } while (0)
-
-void
-_rl_fix_point (fix_mark_too)
- int fix_mark_too;
-{
- _RL_FIX_POINT (rl_point);
- if (fix_mark_too)
- _RL_FIX_POINT (rl_mark);
-}
-#undef _RL_FIX_POINT
-
-void
-_rl_replace_text (text, start, end)
- const char *text;
- int start, end;
-{
- rl_begin_undo_group ();
- rl_delete_text (start, end + 1);
- rl_point = start;
- rl_insert_text (text);
- rl_end_undo_group ();
}
/* **************************************************************** */
/* */
-/* Readline character functions */
-/* */
-/* **************************************************************** */
-
-/* This is not a gap editor, just a stupid line input routine. No hair
- is involved in writing any of the functions, and none should be. */
-
-/* Note that:
-
- rl_end is the place in the string that we would place '\0';
- i.e., it is always safe to place '\0' there.
-
- rl_point is the place in the string where the cursor is. Sometimes
- this is the same as rl_end.
-
- Any command that is called interactively receives two arguments.
- The first is a count: the numeric arg pased to this command.
- The second is the key which invoked this command.
-*/
-
-/* **************************************************************** */
-/* */
-/* Movement Commands */
+/* Saving and Restoring Readline's state */
/* */
/* **************************************************************** */
-/* Note that if you `optimize' the display for these functions, you cannot
- use said functions in other functions which do not do optimizing display.
- I.e., you will have to update the data base for rl_redisplay, and you
- might as well let rl_redisplay do that job. */
-
-/* Move forward COUNT characters. */
-int
-rl_forward (count, key)
- int count, key;
-{
- if (count < 0)
- rl_backward (-count, key);
- else if (count > 0)
- {
- int end = rl_point + count;
-#if defined (VI_MODE)
- int lend = rl_end > 0 ? rl_end - (rl_editing_mode == vi_mode) : rl_end;
-#else
- int lend = rl_end;
-#endif
-
- if (end > lend)
- {
- rl_point = lend;
- rl_ding ();
- }
- else
- rl_point = end;
- }
-
- if (rl_end < 0)
- rl_end = 0;
-
- return 0;
-}
-
-/* Move backward COUNT characters. */
-int
-rl_backward (count, key)
- int count, key;
-{
- if (count < 0)
- rl_forward (-count, key);
- else if (count > 0)
- {
- if (rl_point < count)
- {
- rl_point = 0;
- rl_ding ();
- }
- else
- rl_point -= count;
- }
-
- if (rl_point < 0)
- rl_point = 0;
-
- return 0;
-}
-
-/* Move to the beginning of the line. */
-int
-rl_beg_of_line (count, key)
- int count, key;
-{
- rl_point = 0;
- return 0;
-}
-
-/* Move to the end of the line. */
-int
-rl_end_of_line (count, key)
- int count, key;
-{
- rl_point = rl_end;
- return 0;
-}
-
-/* Move forward a word. We do what Emacs does. */
int
-rl_forward_word (count, key)
- int count, key;
+rl_save_state (sp)
+ struct readline_state *sp;
{
- int c;
-
- if (count < 0)
- {
- rl_backward_word (-count, key);
- return 0;
- }
-
- while (count)
- {
- if (rl_point == rl_end)
- return 0;
-
- /* If we are not in a word, move forward until we are in one.
- Then, move forward until we hit a non-alphabetic character. */
- c = the_line[rl_point];
- if (rl_alphabetic (c) == 0)
- {
- while (++rl_point < rl_end)
- {
- c = the_line[rl_point];
- if (rl_alphabetic (c))
- break;
- }
- }
- if (rl_point == rl_end)
- return 0;
- while (++rl_point < rl_end)
- {
- c = the_line[rl_point];
- if (rl_alphabetic (c) == 0)
- break;
- }
- --count;
- }
- return 0;
-}
-
-/* Move backward a word. We do what Emacs does. */
-int
-rl_backward_word (count, key)
- int count, key;
-{
- int c;
-
- if (count < 0)
- {
- rl_forward_word (-count, key);
- return 0;
- }
-
- while (count)
- {
- if (!rl_point)
- return 0;
-
- /* Like rl_forward_word (), except that we look at the characters
- just before point. */
-
- c = the_line[rl_point - 1];
- if (rl_alphabetic (c) == 0)
- {
- while (--rl_point)
- {
- c = the_line[rl_point - 1];
- if (rl_alphabetic (c))
- break;
- }
- }
-
- while (rl_point)
- {
- c = the_line[rl_point - 1];
- if (rl_alphabetic (c) == 0)
- break;
- else
- --rl_point;
- }
- --count;
- }
- return 0;
-}
-
-/* Clear the current line. Numeric argument to C-l does this. */
-int
-rl_refresh_line (ignore1, ignore2)
- int ignore1, ignore2;
-{
- int curr_line;
-
- curr_line = _rl_current_display_line ();
-
- _rl_move_vert (curr_line);
- _rl_move_cursor_relative (0, the_line); /* XXX is this right */
-
- _rl_clear_to_eol (0); /* arg of 0 means to not use spaces */
-
- rl_forced_update_display ();
- rl_display_fixed = 1;
-
- return 0;
-}
-
-/* C-l typed to a line without quoting clears the screen, and then reprints
- the prompt and the current input line. Given a numeric arg, redraw only
- the current line. */
-int
-rl_clear_screen (count, key)
- int count, key;
-{
- if (rl_explicit_arg)
- {
- rl_refresh_line (count, key);
- return 0;
- }
+ if (sp == 0)
+ return -1;
- _rl_clear_screen (); /* calls termcap function to clear screen */
- rl_forced_update_display ();
- rl_display_fixed = 1;
+ sp->point = rl_point;
+ sp->end = rl_end;
+ sp->mark = rl_mark;
+ sp->buffer = rl_line_buffer;
+ sp->buflen = rl_line_buffer_len;
+ sp->ul = rl_undo_list;
+ sp->prompt = rl_prompt;
+
+ sp->rlstate = rl_readline_state;
+ sp->done = rl_done;
+ sp->kmap = _rl_keymap;
+
+ sp->lastfunc = rl_last_func;
+ sp->insmode = rl_insert_mode;
+ sp->edmode = rl_editing_mode;
+ sp->kseqlen = rl_key_sequence_length;
+ sp->inf = rl_instream;
+ sp->outf = rl_outstream;
+ sp->pendingin = rl_pending_input;
+ sp->macro = rl_executing_macro;
+
+ sp->catchsigs = rl_catch_signals;
+ sp->catchsigwinch = rl_catch_sigwinch;
- return 0;
+ return (0);
}
int
-rl_arrow_keys (count, c)
- int count, c;
+rl_restore_state (sp)
+ struct readline_state *sp;
{
- int ch;
-
- RL_SETSTATE(RL_STATE_MOREINPUT);
- ch = rl_read_key ();
- RL_UNSETSTATE(RL_STATE_MOREINPUT);
-
- switch (_rl_to_upper (ch))
- {
- case 'A':
- rl_get_previous_history (count, ch);
- break;
+ if (sp == 0)
+ return -1;
- case 'B':
- rl_get_next_history (count, ch);
- break;
+ rl_point = sp->point;
+ rl_end = sp->end;
+ rl_mark = sp->mark;
+ the_line = rl_line_buffer = sp->buffer;
+ rl_line_buffer_len = sp->buflen;
+ rl_undo_list = sp->ul;
+ rl_prompt = sp->prompt;
+
+ rl_readline_state = sp->rlstate;
+ rl_done = sp->done;
+ _rl_keymap = sp->kmap;
+
+ rl_last_func = sp->lastfunc;
+ rl_insert_mode = sp->insmode;
+ rl_editing_mode = sp->edmode;
+ rl_key_sequence_length = sp->kseqlen;
+ rl_instream = sp->inf;
+ rl_outstream = sp->outf;
+ rl_pending_input = sp->pendingin;
+ rl_executing_macro = sp->macro;
+
+ rl_catch_signals = sp->catchsigs;
+ rl_catch_sigwinch = sp->catchsigwinch;
- case 'C':
- rl_forward (count, ch);
- break;
-
- case 'D':
- rl_backward (count, ch);
- break;
-
- default:
- rl_ding ();
- }
- return 0;
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Text commands */
-/* */
-/* **************************************************************** */
-
-/* Insert the character C at the current location, moving point forward. */
-int
-rl_insert (count, c)
- int count, c;
-{
- register int i;
- char *string;
-
- if (count <= 0)
- return 0;
-
- /* If we can optimize, then do it. But don't let people crash
- readline because of extra large arguments. */
- if (count > 1 && count <= 1024)
- {
- string = (char *)xmalloc (1 + count);
-
- for (i = 0; i < count; i++)
- string[i] = c;
-
- string[i] = '\0';
- rl_insert_text (string);
- free (string);
-
- return 0;
- }
-
- if (count > 1024)
- {
- int decreaser;
- char str[1024+1];
-
- for (i = 0; i < 1024; i++)
- str[i] = c;
-
- while (count)
- {
- decreaser = (count > 1024 ? 1024 : count);
- str[decreaser] = '\0';
- rl_insert_text (str);
- count -= decreaser;
- }
-
- return 0;
- }
-
- /* We are inserting a single character.
- If there is pending input, then make a string of all of the
- pending characters that are bound to rl_insert, and insert
- them all. */
- if (_rl_any_typein ())
- _rl_insert_typein (c);
- else
- {
- /* Inserting a single character. */
- char str[2];
-
- str[1] = '\0';
- str[0] = c;
- rl_insert_text (str);
- }
- return 0;
-}
-
-/* Insert the next typed character verbatim. */
-int
-rl_quoted_insert (count, key)
- int count, key;
-{
- int c;
-
-#if defined (HANDLE_SIGNALS)
- _rl_disable_tty_signals ();
-#endif
-
- RL_SETSTATE(RL_STATE_MOREINPUT);
- c = rl_read_key ();
- RL_UNSETSTATE(RL_STATE_MOREINPUT);
-
-#if defined (HANDLE_SIGNALS)
- _rl_restore_tty_signals ();
-#endif
-
- return (rl_insert (count, c));
-}
-
-/* Insert a tab character. */
-int
-rl_tab_insert (count, key)
- int count, key;
-{
- return (rl_insert (count, '\t'));
-}
-
-/* What to do when a NEWLINE is pressed. We accept the whole line.
- KEY is the key that invoked this command. I guess it could have
- meaning in the future. */
-int
-rl_newline (count, key)
- int count, key;
-{
- rl_done = 1;
-
- if (_rl_history_preserve_point)
- _rl_history_saved_point = (rl_point == rl_end) ? -1 : rl_point;
-
- RL_SETSTATE(RL_STATE_DONE);
-
-#if defined (VI_MODE)
- if (rl_editing_mode == vi_mode)
- {
- _rl_vi_done_inserting ();
- _rl_vi_reset_last ();
- }
-#endif /* VI_MODE */
-
- /* If we've been asked to erase empty lines, suppress the final update,
- since _rl_update_final calls rl_crlf(). */
- if (rl_erase_empty_line && rl_point == 0 && rl_end == 0)
- return 0;
-
- if (readline_echoing_p)
- _rl_update_final ();
- return 0;
-}
-
-/* What to do for some uppercase characters, like meta characters,
- and some characters appearing in emacs_ctlx_keymap. This function
- is just a stub, you bind keys to it and the code in _rl_dispatch ()
- is special cased. */
-int
-rl_do_lowercase_version (ignore1, ignore2)
- int ignore1, ignore2;
-{
- return 0;
-}
-
-/* Rubout the character behind point. */
-int
-rl_rubout (count, key)
- int count, key;
-{
- if (count < 0)
- {
- rl_delete (-count, key);
- return 0;
- }
-
- if (!rl_point)
- {
- rl_ding ();
- return -1;
- }
-
- if (count > 1 || rl_explicit_arg)
- {
- int orig_point = rl_point;
- rl_backward (count, key);
- rl_kill_text (orig_point, rl_point);
- }
- else
- {
- unsigned char c = the_line[--rl_point];
- rl_delete_text (rl_point, rl_point + 1);
-
- if (rl_point == rl_end && ISPRINT (c) && _rl_last_c_pos)
- {
- int l;
- l = rl_character_len (c, rl_point);
- _rl_erase_at_end_of_line (l);
- }
- }
- return 0;
-}
-
-/* Delete the character under the cursor. Given a numeric argument,
- kill that many characters instead. */
-int
-rl_delete (count, key)
- int count, key;
-{
- if (count < 0)
- return (rl_rubout (-count, key));
-
- if (rl_point == rl_end)
- {
- rl_ding ();
- return -1;
- }
-
- if (count > 1 || rl_explicit_arg)
- {
- int orig_point = rl_point;
- rl_forward (count, key);
- rl_kill_text (orig_point, rl_point);
- rl_point = orig_point;
- return 0;
- }
- else
- return (rl_delete_text (rl_point, rl_point + 1));
-}
-
-/* Delete the character under the cursor, unless the insertion
- point is at the end of the line, in which case the character
- behind the cursor is deleted. COUNT is obeyed and may be used
- to delete forward or backward that many characters. */
-int
-rl_rubout_or_delete (count, key)
- int count, key;
-{
- if (rl_end != 0 && rl_point == rl_end)
- return (rl_rubout (count, key));
- else
- return (rl_delete (count, key));
-}
-
-/* Delete all spaces and tabs around point. */
-int
-rl_delete_horizontal_space (count, ignore)
- int count, ignore;
-{
- int start = rl_point;
-
- while (rl_point && whitespace (the_line[rl_point - 1]))
- rl_point--;
-
- start = rl_point;
-
- while (rl_point < rl_end && whitespace (the_line[rl_point]))
- rl_point++;
-
- if (start != rl_point)
- {
- rl_delete_text (start, rl_point);
- rl_point = start;
- }
- return 0;
-}
-
-/* Like the tcsh editing function delete-char-or-list. The eof character
- is caught before this is invoked, so this really does the same thing as
- delete-char-or-list-or-eof, as long as it's bound to the eof character. */
-int
-rl_delete_or_show_completions (count, key)
- int count, key;
-{
- if (rl_end != 0 && rl_point == rl_end)
- return (rl_possible_completions (count, key));
- else
- return (rl_delete (count, key));
-}
-
-#ifndef RL_COMMENT_BEGIN_DEFAULT
-#define RL_COMMENT_BEGIN_DEFAULT "#"
-#endif
-
-/* Turn the current line into a comment in shell history.
- A K*rn shell style function. */
-int
-rl_insert_comment (count, key)
- int count, key;
-{
- rl_beg_of_line (1, key);
- rl_insert_text (_rl_comment_begin ? _rl_comment_begin
- : RL_COMMENT_BEGIN_DEFAULT);
- (*rl_redisplay_function) ();
- rl_newline (1, '\n');
return (0);
}
-
-/* **************************************************************** */
-/* */
-/* Changing Case */
-/* */
-/* **************************************************************** */
-
-/* The three kinds of things that we know how to do. */
-#define UpCase 1
-#define DownCase 2
-#define CapCase 3
-
-/* Uppercase the word at point. */
-int
-rl_upcase_word (count, key)
- int count, key;
-{
- return (rl_change_case (count, UpCase));
-}
-
-/* Lowercase the word at point. */
-int
-rl_downcase_word (count, key)
- int count, key;
-{
- return (rl_change_case (count, DownCase));
-}
-
-/* Upcase the first letter, downcase the rest. */
-int
-rl_capitalize_word (count, key)
- int count, key;
-{
- return (rl_change_case (count, CapCase));
-}
-
-/* The meaty function.
- Change the case of COUNT words, performing OP on them.
- OP is one of UpCase, DownCase, or CapCase.
- If a negative argument is given, leave point where it started,
- otherwise, leave it where it moves to. */
-static int
-rl_change_case (count, op)
- int count, op;
-{
- register int start, end;
- int inword, c;
-
- start = rl_point;
- rl_forward_word (count, 0);
- end = rl_point;
-
- if (count < 0)
- SWAP (start, end);
-
- /* We are going to modify some text, so let's prepare to undo it. */
- rl_modifying (start, end);
-
- for (inword = 0; start < end; start++)
- {
- c = the_line[start];
- switch (op)
- {
- case UpCase:
- the_line[start] = _rl_to_upper (c);
- break;
-
- case DownCase:
- the_line[start] = _rl_to_lower (c);
- break;
-
- case CapCase:
- the_line[start] = (inword == 0) ? _rl_to_upper (c) : _rl_to_lower (c);
- inword = rl_alphabetic (the_line[start]);
- break;
-
- default:
- rl_ding ();
- return -1;
- }
- }
- rl_point = end;
- return 0;
-}
-
-/* **************************************************************** */
-/* */
-/* Transposition */
-/* */
-/* **************************************************************** */
-
-/* Transpose the words at point. If point is at the end of the line,
- transpose the two words before point. */
-int
-rl_transpose_words (count, key)
- int count, key;
-{
- char *word1, *word2;
- int w1_beg, w1_end, w2_beg, w2_end;
- int orig_point = rl_point;
-
- if (!count)
- return 0;
-
- /* Find the two words. */
- rl_forward_word (count, key);
- w2_end = rl_point;
- rl_backward_word (1, key);
- w2_beg = rl_point;
- rl_backward_word (count, key);
- w1_beg = rl_point;
- rl_forward_word (1, key);
- w1_end = rl_point;
-
- /* Do some check to make sure that there really are two words. */
- if ((w1_beg == w2_beg) || (w2_beg < w1_end))
- {
- rl_ding ();
- rl_point = orig_point;
- return -1;
- }
-
- /* Get the text of the words. */
- word1 = rl_copy_text (w1_beg, w1_end);
- word2 = rl_copy_text (w2_beg, w2_end);
-
- /* We are about to do many insertions and deletions. Remember them
- as one operation. */
- rl_begin_undo_group ();
-
- /* Do the stuff at word2 first, so that we don't have to worry
- about word1 moving. */
- rl_point = w2_beg;
- rl_delete_text (w2_beg, w2_end);
- rl_insert_text (word1);
-
- rl_point = w1_beg;
- rl_delete_text (w1_beg, w1_end);
- rl_insert_text (word2);
-
- /* This is exactly correct since the text before this point has not
- changed in length. */
- rl_point = w2_end;
-
- /* I think that does it. */
- rl_end_undo_group ();
- free (word1);
- free (word2);
-
- return 0;
-}
-
-/* Transpose the characters at point. If point is at the end of the line,
- then transpose the characters before point. */
-int
-rl_transpose_chars (count, key)
- int count, key;
-{
- char dummy[2];
-
- if (!count)
- return 0;
-
- if (!rl_point || rl_end < 2)
- {
- rl_ding ();
- return -1;
- }
-
- rl_begin_undo_group ();
-
- if (rl_point == rl_end)
- {
- --rl_point;
- count = 1;
- }
- rl_point--;
-
- dummy[0] = the_line[rl_point];
- dummy[1] = '\0';
-
- rl_delete_text (rl_point, rl_point + 1);
-
- rl_point += count;
- _rl_fix_point (0);
- rl_insert_text (dummy);
-
- rl_end_undo_group ();
- return 0;
-}
-
-/* **************************************************************** */
-/* */
-/* Character Searching */
-/* */
-/* **************************************************************** */
-
-int
-_rl_char_search_internal (count, dir, schar)
- int count, dir, schar;
-{
- int pos, inc;
-
- pos = rl_point;
- inc = (dir < 0) ? -1 : 1;
- while (count)
- {
- if ((dir < 0 && pos <= 0) || (dir > 0 && pos >= rl_end))
- {
- rl_ding ();
- return -1;
- }
-
- pos += inc;
- do
- {
- if (rl_line_buffer[pos] == schar)
- {
- count--;
- if (dir < 0)
- rl_point = (dir == BTO) ? pos + 1 : pos;
- else
- rl_point = (dir == FTO) ? pos - 1 : pos;
- break;
- }
- }
- while ((dir < 0) ? pos-- : ++pos < rl_end);
- }
- return (0);
-}
-
-/* Search COUNT times for a character read from the current input stream.
- FDIR is the direction to search if COUNT is non-negative; otherwise
- the search goes in BDIR. */
-static int
-_rl_char_search (count, fdir, bdir)
- int count, fdir, bdir;
-{
- int c;
-
- RL_SETSTATE(RL_STATE_MOREINPUT);
- c = rl_read_key ();
- RL_UNSETSTATE(RL_STATE_MOREINPUT);
-
- if (count < 0)
- return (_rl_char_search_internal (-count, bdir, c));
- else
- return (_rl_char_search_internal (count, fdir, c));
-}
-
-int
-rl_char_search (count, key)
- int count, key;
-{
- return (_rl_char_search (count, FFIND, BFIND));
-}
-
-int
-rl_backward_char_search (count, key)
- int count, key;
-{
- return (_rl_char_search (count, BFIND, FFIND));
-}
-
-/* **************************************************************** */
-/* */
-/* History Utilities */
-/* */
-/* **************************************************************** */
-
-/* We already have a history library, and that is what we use to control
- the history features of readline. This is our local interface to
- the history mechanism. */
-
-/* While we are editing the history, this is the saved
- version of the original line. */
-HIST_ENTRY *_rl_saved_line_for_history = (HIST_ENTRY *)NULL;
-
-/* Set the history pointer back to the last entry in the history. */
-static void
-start_using_history ()
-{
- using_history ();
- if (_rl_saved_line_for_history)
- _rl_free_history_entry (_rl_saved_line_for_history);
-
- _rl_saved_line_for_history = (HIST_ENTRY *)NULL;
-}
-
-/* Free the contents (and containing structure) of a HIST_ENTRY. */
-void
-_rl_free_history_entry (entry)
- HIST_ENTRY *entry;
-{
- if (entry == 0)
- return;
- if (entry->line)
- free (entry->line);
- free (entry);
-}
-
-/* Perhaps put back the current line if it has changed. */
-int
-rl_maybe_replace_line ()
-{
- HIST_ENTRY *temp;
-
- temp = current_history ();
- /* If the current line has changed, save the changes. */
- if (temp && ((UNDO_LIST *)(temp->data) != rl_undo_list))
- {
- temp = replace_history_entry (where_history (), the_line, (histdata_t)rl_undo_list);
- free (temp->line);
- free (temp);
- }
- return 0;
-}
-
-/* Restore the _rl_saved_line_for_history if there is one. */
-int
-rl_maybe_unsave_line ()
-{
- int line_len;
-
- if (_rl_saved_line_for_history)
- {
- line_len = strlen (_rl_saved_line_for_history->line);
-
- if (line_len >= rl_line_buffer_len)
- rl_extend_line_buffer (line_len);
-
- strcpy (the_line, _rl_saved_line_for_history->line);
- rl_undo_list = (UNDO_LIST *)_rl_saved_line_for_history->data;
- _rl_free_history_entry (_rl_saved_line_for_history);
- _rl_saved_line_for_history = (HIST_ENTRY *)NULL;
- rl_end = rl_point = strlen (the_line);
- }
- else
- rl_ding ();
- return 0;
-}
-
-/* Save the current line in _rl_saved_line_for_history. */
-int
-rl_maybe_save_line ()
-{
- if (_rl_saved_line_for_history == 0)
- {
- _rl_saved_line_for_history = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY));
- _rl_saved_line_for_history->line = savestring (the_line);
- _rl_saved_line_for_history->data = (char *)rl_undo_list;
- }
- return 0;
-}
-
-int
-_rl_free_saved_history_line ()
-{
- if (_rl_saved_line_for_history)
- {
- _rl_free_history_entry (_rl_saved_line_for_history);
- _rl_saved_line_for_history = (HIST_ENTRY *)NULL;
- }
- return 0;
-}
-
-/* **************************************************************** */
-/* */
-/* History Commands */
-/* */
-/* **************************************************************** */
-
-/* Meta-< goes to the start of the history. */
-int
-rl_beginning_of_history (count, key)
- int count, key;
-{
- return (rl_get_previous_history (1 + where_history (), key));
-}
-
-/* Meta-> goes to the end of the history. (The current line). */
-int
-rl_end_of_history (count, key)
- int count, key;
-{
- rl_maybe_replace_line ();
- using_history ();
- rl_maybe_unsave_line ();
- return 0;
-}
-
-/* Move down to the next history line. */
-int
-rl_get_next_history (count, key)
- int count, key;
-{
- HIST_ENTRY *temp;
- int line_len;
-
- if (count < 0)
- return (rl_get_previous_history (-count, key));
-
- if (count == 0)
- return 0;
-
- rl_maybe_replace_line ();
-
- /* either not saved by rl_newline or at end of line, so set appropriately. */
- if (_rl_history_saved_point == -1 && (rl_point || rl_end))
- _rl_history_saved_point = (rl_point == rl_end) ? -1 : rl_point;
-
- temp = (HIST_ENTRY *)NULL;
- while (count)
- {
- temp = next_history ();
- if (!temp)
- break;
- --count;
- }
-
- if (temp == 0)
- rl_maybe_unsave_line ();
- else
- {
- line_len = strlen (temp->line);
-
- if (line_len >= rl_line_buffer_len)
- rl_extend_line_buffer (line_len);
-
- strcpy (the_line, temp->line);
- rl_undo_list = (UNDO_LIST *)temp->data;
- rl_end = strlen (the_line);
- rl_point = (_rl_history_preserve_point && _rl_history_saved_point != -1)
- ? _rl_history_saved_point
- : rl_end;
- if (rl_point > rl_end)
- rl_point = rl_end;
-#if defined (VI_MODE)
- if (rl_editing_mode == vi_mode)
- rl_point = 0;
-#endif /* VI_MODE */
- }
- return 0;
-}
-
-/* Get the previous item out of our interactive history, making it the current
- line. If there is no previous history, just ding. */
-int
-rl_get_previous_history (count, key)
- int count, key;
-{
- HIST_ENTRY *old_temp, *temp;
- int line_len;
-
- if (count < 0)
- return (rl_get_next_history (-count, key));
-
- if (count == 0)
- return 0;
-
- /* either not saved by rl_newline or at end of line, so set appropriately. */
- if (_rl_history_saved_point == -1 && (rl_point || rl_end))
- _rl_history_saved_point = (rl_point == rl_end) ? -1 : rl_point;
-
- /* If we don't have a line saved, then save this one. */
- rl_maybe_save_line ();
-
- /* If the current line has changed, save the changes. */
- rl_maybe_replace_line ();
-
- temp = old_temp = (HIST_ENTRY *)NULL;
- while (count)
- {
- temp = previous_history ();
- if (temp == 0)
- break;
-
- old_temp = temp;
- --count;
- }
-
- /* If there was a large argument, and we moved back to the start of the
- history, that is not an error. So use the last value found. */
- if (!temp && old_temp)
- temp = old_temp;
-
- if (temp == 0)
- rl_ding ();
- else
- {
- line_len = strlen (temp->line);
-
- if (line_len >= rl_line_buffer_len)
- rl_extend_line_buffer (line_len);
-
- strcpy (the_line, temp->line);
- rl_undo_list = (UNDO_LIST *)temp->data;
- rl_end = line_len;
- rl_point = (_rl_history_preserve_point && _rl_history_saved_point != -1)
- ? _rl_history_saved_point
- : rl_end;
- if (rl_point > rl_end)
- rl_point = rl_end;
-
-#if defined (VI_MODE)
- if (rl_editing_mode == vi_mode)
- rl_point = 0;
-#endif /* VI_MODE */
- }
- return 0;
-}
-
-/* **************************************************************** */
-/* */
-/* The Mark and the Region. */
-/* */
-/* **************************************************************** */
-
-/* Set the mark at POSITION. */
-int
-_rl_set_mark_at_pos (position)
- int position;
-{
- if (position > rl_end)
- return -1;
-
- rl_mark = position;
- return 0;
-}
-
-/* A bindable command to set the mark. */
-int
-rl_set_mark (count, key)
- int count, key;
-{
- return (_rl_set_mark_at_pos (rl_explicit_arg ? count : rl_point));
-}
-
-/* Exchange the position of mark and point. */
-int
-rl_exchange_point_and_mark (count, key)
- int count, key;
-{
- if (rl_mark > rl_end)
- rl_mark = -1;
-
- if (rl_mark == -1)
- {
- rl_ding ();
- return -1;
- }
- else
- SWAP (rl_point, rl_mark);
-
- return 0;
-}
-
-/* **************************************************************** */
-/* */
-/* Editing Modes */
-/* */
-/* **************************************************************** */
-/* How to toggle back and forth between editing modes. */
-int
-rl_vi_editing_mode (count, key)
- int count, key;
-{
-#if defined (VI_MODE)
- rl_editing_mode = vi_mode;
- rl_vi_insertion_mode (1, key);
-#endif /* VI_MODE */
- return 0;
-}
-
-int
-rl_emacs_editing_mode (count, key)
- int count, key;
-{
- rl_editing_mode = emacs_mode;
- _rl_keymap = emacs_standard_keymap;
- return 0;
-}
projects / platform / upstream / bash.git / blobdiff