/* vi_mode.c -- A vi emulation mode for Bash.
Derived from code written by Jeff Sparkes (jsparkes@bnr.ca). */
/* 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
/* **************************************************************** */
/* */
/* VI Emulation Mode */
/* */
/* **************************************************************** */
#include "rlconf.h"
#if defined (VI_MODE)
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#include <sys/types.h>
#if defined (HAVE_STDLIB_H)
# include <stdlib.h>
#else
# include "ansi_stdlib.h"
#endif /* HAVE_STDLIB_H */
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include <stdio.h>
/* Some standard library routines. */
#include "rldefs.h"
#include "rlmbutil.h"
#include "readline.h"
#include "history.h"
#include "rlprivate.h"
#include "xmalloc.h"
#ifndef member
#define member(c, s) ((c) ? (char *)strchr ((s), (c)) != (char *)NULL : 0)
#endif
/* Increment START to the next character in RL_LINE_BUFFER, handling multibyte chars */
#if defined (HANDLE_MULTIBYTE)
#define INCREMENT_POS(start) \
do { \
if (MB_CUR_MAX == 1 || rl_byte_oriented) \
start++; \
else \
start = _rl_find_next_mbchar (rl_line_buffer, start, 1, MB_FIND_ANY); \
} while (0)
#else /* !HANDLE_MULTIBYTE */
#define INCREMENT_POS(start) (start)++
#endif /* !HANDLE_MULTIBYTE */
/* This is global so other parts of the code can check whether the last
command was a text modification command. */
int _rl_vi_last_command = 'i'; /* default `.' puts you in insert mode */
_rl_vimotion_cxt *_rl_vimvcxt = 0;
/* Non-zero indicates we are redoing a vi-mode command with `.' */
int _rl_vi_redoing;
/* Non-zero means enter insertion mode. */
static int _rl_vi_doing_insert;
/* Command keys which do movement for xxx_to commands. */
static const char * const vi_motion = " hl^$0ftFT;,%wbeWBE|`";
/* Keymap used for vi replace characters. Created dynamically since
rarely used. */
static Keymap vi_replace_map;
/* The number of characters inserted in the last replace operation. */
static int vi_replace_count;
/* If non-zero, we have text inserted after a c[motion] command that put
us implicitly into insert mode. Some people want this text to be
attached to the command so that it is `redoable' with `.'. */
static int vi_continued_command;
static char *vi_insert_buffer;
static int vi_insert_buffer_size;
static int _rl_vi_last_repeat = 1;
static int _rl_vi_last_arg_sign = 1;
static int _rl_vi_last_motion;
#if defined (HANDLE_MULTIBYTE)
static char _rl_vi_last_search_mbchar[MB_LEN_MAX];
static int _rl_vi_last_search_mblen;
#else
static int _rl_vi_last_search_char;
#endif
static char _rl_vi_last_replacement[MB_LEN_MAX+1]; /* reserve for trailing NULL */
static int _rl_vi_last_key_before_insert;
/* Text modification commands. These are the `redoable' commands. */
static const char * const vi_textmod = "_*\\AaIiCcDdPpYyRrSsXx~";
/* Arrays for the saved marks. */
static int vi_mark_chars['z' - 'a' + 1];
static void _rl_vi_replace_insert PARAMS((int));
static void _rl_vi_save_replace PARAMS((void));
static void _rl_vi_stuff_insert PARAMS((int));
static void _rl_vi_save_insert PARAMS((UNDO_LIST *));
static void vi_save_insert_buffer PARAMS ((int, int));
static inline void _rl_vi_backup PARAMS((void));
static int _rl_vi_arg_dispatch PARAMS((int));
static int rl_digit_loop1 PARAMS((void));
static int _rl_vi_set_mark PARAMS((void));
static int _rl_vi_goto_mark PARAMS((void));
static inline int _rl_vi_advance_point PARAMS((void));
static inline int _rl_vi_backup_point PARAMS((void));
static void _rl_vi_append_forward PARAMS((int));
static int _rl_vi_callback_getchar PARAMS((char *, int));
#if defined (READLINE_CALLBACKS)
static int _rl_vi_callback_set_mark PARAMS((_rl_callback_generic_arg *));
static int _rl_vi_callback_goto_mark PARAMS((_rl_callback_generic_arg *));
static int _rl_vi_callback_change_char PARAMS((_rl_callback_generic_arg *));
static int _rl_vi_callback_char_search PARAMS((_rl_callback_generic_arg *));
#endif
static int rl_domove_read_callback PARAMS((_rl_vimotion_cxt *));
static int rl_domove_motion_callback PARAMS((_rl_vimotion_cxt *));
static int rl_vi_domove_getchar PARAMS((_rl_vimotion_cxt *));
static int vi_change_dispatch PARAMS((_rl_vimotion_cxt *));
static int vi_delete_dispatch PARAMS((_rl_vimotion_cxt *));
static int vi_yank_dispatch PARAMS((_rl_vimotion_cxt *));
static int vidomove_dispatch PARAMS((_rl_vimotion_cxt *));
void
_rl_vi_initialize_line (void)
{
register int i, n;
n = sizeof (vi_mark_chars) / sizeof (vi_mark_chars[0]);
for (i = 0; i < n; i++)
vi_mark_chars[i] = -1;
RL_UNSETSTATE(RL_STATE_VICMDONCE);
}
void
_rl_vi_reset_last (void)
{
_rl_vi_last_command = 'i';
_rl_vi_last_repeat = 1;
_rl_vi_last_arg_sign = 1;
_rl_vi_last_motion = 0;
}
void
_rl_vi_set_last (int key, int repeat, int sign)
{
_rl_vi_last_command = key;
_rl_vi_last_repeat = repeat;
_rl_vi_last_arg_sign = sign;
}
/* A convenience function that calls _rl_vi_set_last to save the last command
information and enters insertion mode. */
void
rl_vi_start_inserting (int key, int repeat, int sign)
{
_rl_vi_set_last (key, repeat, sign);
rl_begin_undo_group (); /* ensure inserts aren't concatenated */
rl_vi_insertion_mode (1, key);
}
/* Is the command C a VI mode text modification command? */
int
_rl_vi_textmod_command (int c)
{
return (member (c, vi_textmod));
}
int
_rl_vi_motion_command (int c)
{
return (member (c, vi_motion));
}
static void
_rl_vi_replace_insert (int count)
{
int nchars;
nchars = strlen (vi_insert_buffer);
rl_begin_undo_group ();
while (count--)
/* nchars-1 to compensate for _rl_replace_text using `end+1' in call
to rl_delete_text */
_rl_replace_text (vi_insert_buffer, rl_point, rl_point+nchars-1);
rl_end_undo_group ();
}
static void
_rl_vi_stuff_insert (int count)
{
rl_begin_undo_group ();
while (count--)
rl_insert_text (vi_insert_buffer);
rl_end_undo_group ();
}
/* Bound to `.'. Called from command mode, so we know that we have to
redo a text modification command. The default for _rl_vi_last_command
puts you back into insert mode. */
int
rl_vi_redo (int count, int c)
{
int r;
if (rl_explicit_arg == 0)
{
rl_numeric_arg = _rl_vi_last_repeat;
rl_arg_sign = _rl_vi_last_arg_sign;
}
r = 0;
_rl_vi_redoing = 1;
/* If we're redoing an insert with `i', stuff in the inserted text
and do not go into insertion mode. */
if (_rl_vi_last_command == 'i' && vi_insert_buffer && *vi_insert_buffer)
{
_rl_vi_stuff_insert (count);
/* And back up point over the last character inserted. */
if (rl_point > 0)
_rl_vi_backup ();
}
else if (_rl_vi_last_command == 'R' && vi_insert_buffer && *vi_insert_buffer)
{
_rl_vi_replace_insert (count);
/* And back up point over the last character inserted. */
if (rl_point > 0)
_rl_vi_backup ();
}
/* Ditto for redoing an insert with `I', but move to the beginning of the
line like the `I' command does. */
else if (_rl_vi_last_command == 'I' && vi_insert_buffer && *vi_insert_buffer)
{
rl_beg_of_line (1, 'I');
_rl_vi_stuff_insert (count);
if (rl_point > 0)
_rl_vi_backup ();
}
/* Ditto for redoing an insert with `a', but move forward a character first
like the `a' command does. */
else if (_rl_vi_last_command == 'a' && vi_insert_buffer && *vi_insert_buffer)
{
_rl_vi_append_forward ('a');
_rl_vi_stuff_insert (count);
if (rl_point > 0)
_rl_vi_backup ();
}
/* Ditto for redoing an insert with `A', but move to the end of the line
like the `A' command does. */
else if (_rl_vi_last_command == 'A' && vi_insert_buffer && *vi_insert_buffer)
{
rl_end_of_line (1, 'A');
_rl_vi_stuff_insert (count);
if (rl_point > 0)
_rl_vi_backup ();
}
else if (_rl_vi_last_command == '.' && _rl_keymap == vi_movement_keymap)
{
rl_ding ();
r = 0;
}
else
r = _rl_dispatch (_rl_vi_last_command, _rl_keymap);
_rl_vi_redoing = 0;
return (r);
}
/* A placeholder for further expansion. */
int
rl_vi_undo (int count, int key)
{
return (rl_undo_command (count, key));
}
/* Yank the nth arg from the previous line into this line at point. */
int
rl_vi_yank_arg (int count, int key)
{
/* Readline thinks that the first word on a line is the 0th, while vi
thinks the first word on a line is the 1st. Compensate. */
if (rl_explicit_arg)
rl_yank_nth_arg (count - 1, key);
else
rl_yank_nth_arg ('$', key);
return (0);
}
/* With an argument, move back that many history lines, else move to the
beginning of history. */
int
rl_vi_fetch_history (int count, int c)
{
int wanted;
/* Giving an argument of n means we want the nth command in the history
file. The command number is interpreted the same way that the bash
`history' command does it -- that is, giving an argument count of 450
to this command would get the command listed as number 450 in the
output of `history'. */
if (rl_explicit_arg)
{
wanted = history_base + where_history () - count;
if (wanted <= 0)
rl_beginning_of_history (0, 0);
else
rl_get_previous_history (wanted, c);
}
else
rl_beginning_of_history (count, 0);
return (0);
}
/* Search again for the last thing searched for. */
int
rl_vi_search_again (int count, int key)
{
switch (key)
{
case 'n':
rl_noninc_reverse_search_again (count, key);
break;
case 'N':
rl_noninc_forward_search_again (count, key);
break;
}
return (0);
}
/* Do a vi style search. */
int
rl_vi_search (int count, int key)
{
switch (key)
{
case '?':
_rl_free_saved_history_line ();
rl_noninc_forward_search (count, key);
break;
case '/':
_rl_free_saved_history_line ();
rl_noninc_reverse_search (count, key);
break;
default:
rl_ding ();
break;
}
return (0);
}
/* Completion, from vi's point of view. */
int
rl_vi_complete (int ignore, int key)
{
if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point])))
{
if (!whitespace (rl_line_buffer[rl_point + 1]))
rl_vi_end_word (1, 'E');
_rl_vi_advance_point ();
}
if (key == '*')
rl_complete_internal ('*'); /* Expansion and replacement. */
else if (key == '=')
rl_complete_internal ('?'); /* List possible completions. */
else if (key == '\\')
rl_complete_internal (TAB); /* Standard Readline completion. */
else
rl_complete (0, key);
if (key == '*' || key == '\\')
rl_vi_start_inserting (key, 1, rl_arg_sign);
return (0);
}
/* Tilde expansion for vi mode. */
int
rl_vi_tilde_expand (int ignore, int key)
{
rl_tilde_expand (0, key);
rl_vi_start_inserting (key, 1, rl_arg_sign);
return (0);
}
/* Previous word in vi mode. */
int
rl_vi_prev_word (int count, int key)
{
if (count < 0)
return (rl_vi_next_word (-count, key));
if (rl_point == 0)
{
rl_ding ();
return (0);
}
if (_rl_uppercase_p (key))
rl_vi_bWord (count, key);
else
rl_vi_bword (count, key);
return (0);
}
/* Next word in vi mode. */
int
rl_vi_next_word (int count, int key)
{
if (count < 0)
return (rl_vi_prev_word (-count, key));
if (rl_point >= (rl_end - 1))
{
rl_ding ();
return (0);
}
if (_rl_uppercase_p (key))
rl_vi_fWord (count, key);
else
rl_vi_fword (count, key);
return (0);
}
static inline int
_rl_vi_advance_point (void)
{
int point;
point = rl_point;
if (rl_point < rl_end)
#if defined (HANDLE_MULTIBYTE)
{
if (MB_CUR_MAX == 1 || rl_byte_oriented)
rl_point++;
else
{
point = rl_point;
rl_point = _rl_forward_char_internal (1);
if (point == rl_point || rl_point > rl_end)
rl_point = rl_end;
}
}
#else
rl_point++;
#endif
return point;
}
/* Move the cursor back one character. */
static inline void
_rl_vi_backup (void)
{
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
rl_point = _rl_find_prev_mbchar (rl_line_buffer, rl_point, MB_FIND_NONZERO);
else
rl_point--;
}
/* Move the point back one character, returning the starting value and not
doing anything at the beginning of the line */
static inline int
_rl_vi_backup_point (void)
{
int point;
point = rl_point;
if (rl_point > 0)
#if defined (HANDLE_MULTIBYTE)
{
if (MB_CUR_MAX == 1 || rl_byte_oriented)
rl_point--;
else
{
point = rl_point;
rl_point = _rl_backward_char_internal (1);
if (rl_point < 0)
rl_point = 0; /* XXX - not really necessary */
}
}
#else
rl_point--;
#endif
return point;
}
/* Move to the end of the ?next? word. */
int
rl_vi_end_word (int count, int key)
{
if (count < 0)
{
rl_ding ();
return 1;
}
if (_rl_uppercase_p (key))
rl_vi_eWord (count, key);
else
rl_vi_eword (count, key);
return (0);
}
/* Move forward a word the way that 'W' does. */
int
rl_vi_fWord (int count, int ignore)
{
while (count-- && rl_point < (rl_end - 1))
{
/* Skip until whitespace. */
while (!whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
_rl_vi_advance_point ();
/* Now skip whitespace. */
while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
_rl_vi_advance_point ();
}
return (0);
}
int
rl_vi_bWord (int count, int ignore)
{
while (count-- && rl_point > 0)
{
/* If we are at the start of a word, move back to whitespace so
we will go back to the start of the previous word. */
if (!whitespace (rl_line_buffer[rl_point]) &&
whitespace (rl_line_buffer[rl_point - 1]))
rl_point--;
while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
_rl_vi_backup_point ();
if (rl_point > 0)
{
do
_rl_vi_backup_point ();
while (rl_point > 0 && !whitespace (rl_line_buffer[rl_point]));
if (rl_point > 0) /* hit whitespace */
rl_point++;
if (rl_point < 0)
rl_point = 0;
}
}
return (0);
}
int
rl_vi_eWord (int count, int ignore)
{
int opoint;
while (count-- && rl_point < (rl_end - 1))
{
if (whitespace (rl_line_buffer[rl_point]) == 0)
_rl_vi_advance_point ();
/* Move to the next non-whitespace character (to the start of the
next word). */
while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
_rl_vi_advance_point ();
if (rl_point && rl_point < rl_end)
{
opoint = rl_point;
/* Skip whitespace. */
while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
opoint = _rl_vi_advance_point (); /* XXX - why? */
/* Skip until whitespace. */
while (rl_point < rl_end && !whitespace (rl_line_buffer[rl_point]))
opoint = _rl_vi_advance_point ();
/* Move back to the last character of the word. */
rl_point = opoint;
}
}
return (0);
}
int
rl_vi_fword (int count, int ignore)
{
int opoint;
while (count-- && rl_point < (rl_end - 1))
{
/* Move to white space (really non-identifer). */
if (_rl_isident (rl_line_buffer[rl_point]))
{
while (_rl_isident (rl_line_buffer[rl_point]) && rl_point < rl_end)
_rl_vi_advance_point ();
}
else /* if (!whitespace (rl_line_buffer[rl_point])) */
{
while (!_rl_isident (rl_line_buffer[rl_point]) &&
!whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
_rl_vi_advance_point ();
}
opoint = rl_point;
/* Move past whitespace. */
while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
opoint = _rl_vi_advance_point ();
}
return (0);
}
int
rl_vi_bword (int count, int ignore)
{
int opoint;
while (count-- && rl_point > 0)
{
int prev_is_ident, cur_is_ident;
/* If we are at the start of a word, move back to whitespace
so we will go back to the start of the previous word. */
if (!whitespace (rl_line_buffer[rl_point]) &&
whitespace (rl_line_buffer[rl_point - 1]))
if (--rl_point == 0)
break;
/* If this character and the previous character are `opposite', move
back so we don't get messed up by the rl_point++ down there in
the while loop. Without this code, words like `l;' screw up the
function. */
cur_is_ident = _rl_isident (rl_line_buffer[rl_point]);
opoint = _rl_vi_backup_point ();
prev_is_ident = _rl_isident (rl_line_buffer[rl_point]);
if ((cur_is_ident && !prev_is_ident) || (!cur_is_ident && prev_is_ident))
; /* leave point alone, we backed it up one character */
else
rl_point = opoint;
while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
_rl_vi_backup_point ();
if (rl_point > 0)
{
opoint = rl_point;
if (_rl_isident (rl_line_buffer[rl_point]))
do
opoint = _rl_vi_backup_point ();
while (rl_point > 0 && _rl_isident (rl_line_buffer[rl_point]));
else
do
opoint = _rl_vi_backup_point ();
while (rl_point > 0 && !_rl_isident (rl_line_buffer[rl_point]) &&
!whitespace (rl_line_buffer[rl_point]));
if (rl_point > 0)
rl_point = opoint;
if (rl_point < 0)
rl_point = 0;
}
}
return (0);
}
int
rl_vi_eword (int count, int ignore)
{
int opoint;
while (count-- && rl_point < (rl_end - 1))
{
if (whitespace (rl_line_buffer[rl_point]) == 0)
_rl_vi_advance_point ();
while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
_rl_vi_advance_point ();
opoint = rl_point;
if (rl_point < rl_end)
{
if (_rl_isident (rl_line_buffer[rl_point]))
do
{
opoint = _rl_vi_advance_point ();
}
while (rl_point < rl_end && _rl_isident (rl_line_buffer[rl_point]));
else
do
{
opoint = _rl_vi_advance_point ();
}
while (rl_point < rl_end && !_rl_isident (rl_line_buffer[rl_point])
&& !whitespace (rl_line_buffer[rl_point]));
}
rl_point = opoint;
}
return (0);
}
int
rl_vi_insert_beg (int count, int key)
{
rl_beg_of_line (1, key);
rl_vi_insert_mode (1, key);
return (0);
}
static void
_rl_vi_append_forward (int key)
{
_rl_vi_advance_point ();
}
int
rl_vi_append_mode (int count, int key)
{
_rl_vi_append_forward (key);
rl_vi_start_inserting (key, 1, rl_arg_sign);
return (0);
}
int
rl_vi_append_eol (int count, int key)
{
rl_end_of_line (1, key);
rl_vi_append_mode (1, key);
return (0);
}
/* What to do in the case of C-d. */
int
rl_vi_eof_maybe (int count, int c)
{
return (rl_newline (1, '\n'));
}
/* Insertion mode stuff. */
/* Switching from one mode to the other really just involves
switching keymaps. */
int
rl_vi_insertion_mode (int count, int key)
{
_rl_keymap = vi_insertion_keymap;
_rl_vi_last_key_before_insert = key;
if (_rl_show_mode_in_prompt)
_rl_reset_prompt ();
return (0);
}
int
rl_vi_insert_mode (int count, int key)
{
rl_vi_start_inserting (key, 1, rl_arg_sign);
return (0);
}
static void
vi_save_insert_buffer (int start, int len)
{
/* Same code as _rl_vi_save_insert below */
if (len >= vi_insert_buffer_size)
{
vi_insert_buffer_size += (len + 32) - (len % 32);
vi_insert_buffer = (char *)xrealloc (vi_insert_buffer, vi_insert_buffer_size);
}
strncpy (vi_insert_buffer, rl_line_buffer + start, len - 1);
vi_insert_buffer[len-1] = '\0';
}
static void
_rl_vi_save_replace (void)
{
int len, start, end;
UNDO_LIST *up;
up = rl_undo_list;
if (up == 0 || up->what != UNDO_END || vi_replace_count <= 0)
{
if (vi_insert_buffer_size >= 1)
vi_insert_buffer[0] = '\0';
return;
}
/* Let's try it the quick and easy way for now. This should essentially
accommodate every UNDO_INSERT and save the inserted text to
vi_insert_buffer */
end = rl_point;
start = end - vi_replace_count + 1;
len = vi_replace_count + 1;
if (start < 0)
{
len = end + 1;
start = 0;
}
vi_save_insert_buffer (start, len);
}
static void
_rl_vi_save_insert (UNDO_LIST *up)
{
int len, start, end;
if (up == 0 || up->what != UNDO_INSERT)
{
if (vi_insert_buffer_size >= 1)
vi_insert_buffer[0] = '\0';
return;
}
start = up->start;
end = up->end;
len = end - start + 1;
vi_save_insert_buffer (start, len);
}
void
_rl_vi_done_inserting (void)
{
if (_rl_vi_doing_insert)
{
/* The `c', `s', `S', and `R' commands set this. */
rl_end_undo_group (); /* for the group in rl_vi_start_inserting */
/* Now, the text between rl_undo_list->next->start and
rl_undo_list->next->end is what was inserted while in insert
mode. It gets copied to VI_INSERT_BUFFER because it depends
on absolute indices into the line which may change (though they
probably will not). */
_rl_vi_doing_insert = 0;
if (_rl_vi_last_key_before_insert == 'R')
_rl_vi_save_replace (); /* Half the battle */
else
_rl_vi_save_insert (rl_undo_list->next);
/* sanity check, should always be >= 1 here */
if (_rl_undo_group_level > 0)
rl_end_undo_group (); /* for the group in the command (change or replace) */
}
else
{
if (rl_undo_list && (_rl_vi_last_key_before_insert == 'i' ||
_rl_vi_last_key_before_insert == 'a' ||
_rl_vi_last_key_before_insert == 'I' ||
_rl_vi_last_key_before_insert == 'A'))
_rl_vi_save_insert (rl_undo_list);
/* XXX - Other keys probably need to be checked. */
else if (_rl_vi_last_key_before_insert == 'C')
rl_end_undo_group ();
}
/* Sanity check, make sure all the undo groups are closed before we leave
insert mode */
while (_rl_undo_group_level > 0)
rl_end_undo_group ();
}
int
rl_vi_movement_mode (int count, int key)
{
if (rl_point > 0)
rl_backward_char (1, key);
_rl_keymap = vi_movement_keymap;
_rl_vi_done_inserting ();
/* This is how POSIX.2 says `U' should behave -- everything up until the
first time you go into command mode should not be undone. */
if (RL_ISSTATE (RL_STATE_VICMDONCE) == 0)
rl_free_undo_list ();
if (_rl_show_mode_in_prompt)
_rl_reset_prompt ();
RL_SETSTATE (RL_STATE_VICMDONCE);
return (0);
}
int
rl_vi_arg_digit (int count, int c)
{
if (c == '0' && rl_numeric_arg == 1 && !rl_explicit_arg)
return (rl_beg_of_line (1, c));
else
return (rl_digit_argument (count, c));
}
/* Change the case of the next COUNT characters. */
#if defined (HANDLE_MULTIBYTE)
static int
_rl_vi_change_mbchar_case (int count)
{
wchar_t wc;
char mb[MB_LEN_MAX+1];
int mlen, p;
size_t m;
mbstate_t ps;
memset (&ps, 0, sizeof (mbstate_t));
if (_rl_adjust_point (rl_line_buffer, rl_point, &ps) > 0)
count--;
while (count-- && rl_point < rl_end)
{
m = mbrtowc (&wc, rl_line_buffer + rl_point, rl_end - rl_point, &ps);
if (MB_INVALIDCH (m))
wc = (wchar_t)rl_line_buffer[rl_point];
else if (MB_NULLWCH (m))
wc = L'\0';
if (iswupper (wc))
wc = towlower (wc);
else if (iswlower (wc))
wc = towupper (wc);
else
{
/* Just skip over chars neither upper nor lower case */
rl_forward_char (1, 0);
continue;
}
/* Vi is kind of strange here. */
if (wc)
{
p = rl_point;
mlen = wcrtomb (mb, wc, &ps);
if (mlen >= 0)
mb[mlen] = '\0';
rl_begin_undo_group ();
rl_vi_delete (1, 0);
if (rl_point < p) /* Did we retreat at EOL? */
_rl_vi_advance_point ();
rl_insert_text (mb);
rl_end_undo_group ();
rl_vi_check ();
}
else
rl_forward_char (1, 0);
}
return 0;
}
#endif
int
rl_vi_change_case (int count, int ignore)
{
int c, p;
/* Don't try this on an empty line. */
if (rl_point >= rl_end)
return (0);
c = 0;
#if defined (HANDLE_MULTIBYTE)
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
return (_rl_vi_change_mbchar_case (count));
#endif
while (count-- && rl_point < rl_end)
{
if (_rl_uppercase_p (rl_line_buffer[rl_point]))
c = _rl_to_lower (rl_line_buffer[rl_point]);
else if (_rl_lowercase_p (rl_line_buffer[rl_point]))
c = _rl_to_upper (rl_line_buffer[rl_point]);
else
{
/* Just skip over characters neither upper nor lower case. */
rl_forward_char (1, c);
continue;
}
/* Vi is kind of strange here. */
if (c)
{
p = rl_point;
rl_begin_undo_group ();
rl_vi_delete (1, c);
if (rl_point < p) /* Did we retreat at EOL? */
rl_point++;
_rl_insert_char (1, c);
rl_end_undo_group ();
rl_vi_check ();
}
else
rl_forward_char (1, c);
}
return (0);
}
int
rl_vi_put (int count, int key)
{
if (!_rl_uppercase_p (key) && (rl_point + 1 <= rl_end))
rl_point = _rl_find_next_mbchar (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
while (count--)
rl_yank (1, key);
rl_backward_char (1, key);
return (0);
}
/* Move the cursor back one character if you're at the end of the line */
int
rl_vi_check (void)
{
if (rl_point && rl_point == rl_end)
_rl_vi_backup ();
return (0);
}
/* Move to the character position specified by COUNT */
int
rl_vi_column (int count, int key)
{
if (count > rl_end)
rl_end_of_line (1, key);
else
{
rl_point = 0;
rl_point = _rl_forward_char_internal (count - 1);
}
return (0);
}
/* Process C as part of the current numeric argument. Return -1 if the
argument should be aborted, 0 if we should not read any more chars, and
1 if we should continue to read chars. */
static int
_rl_vi_arg_dispatch (int c)
{
int key;
key = c;
if (c >= 0 && _rl_keymap[c].type == ISFUNC && _rl_keymap[c].function == rl_universal_argument)
{
rl_numeric_arg *= 4;
return 1;
}
c = UNMETA (c);
if (_rl_digit_p (c))
{
if (rl_explicit_arg)
rl_numeric_arg = (rl_numeric_arg * 10) + _rl_digit_value (c);
else
rl_numeric_arg = _rl_digit_value (c);
rl_explicit_arg = 1;
return 1; /* keep going */
}
else
{
rl_clear_message ();
rl_stuff_char (key);
return 0; /* done */
}
}
/* A simplified loop for vi. Don't dispatch key at end.
Don't recognize minus sign?
Should this do rl_save_prompt/rl_restore_prompt? */
static int
rl_digit_loop1 (void)
{
int c, r;
while (1)
{
if (_rl_arg_overflow ())
return 1;
c = _rl_arg_getchar ();
r = _rl_vi_arg_dispatch (c);
if (r <= 0)
break;
}
RL_UNSETSTATE(RL_STATE_NUMERICARG);
return (0);
}
/* This set of functions is basically to handle the commands that take a
motion argument while in callback mode: read the command, read the motion
command modifier, find the extent of the text to affect, and dispatch the
command for execution. */
static void
_rl_mvcxt_init (_rl_vimotion_cxt *m, int op, int key)
{
m->op = op;
m->state = m->flags = 0;
m->ncxt = 0;
m->numeric_arg = -1;
m->start = rl_point;
m->end = rl_end;
m->key = key;
m->motion = -1;
}
static _rl_vimotion_cxt *
_rl_mvcxt_alloc (int op, int key)
{
_rl_vimotion_cxt *m;
m = xmalloc (sizeof (_rl_vimotion_cxt));
_rl_mvcxt_init (m, op, key);
return m;
}
static void
_rl_mvcxt_dispose (_rl_vimotion_cxt *m)
{
xfree (m);
}
static int
rl_domove_motion_callback (_rl_vimotion_cxt *m)
{
int c;
_rl_vi_last_motion = c = m->motion;
/* Append a blank character temporarily so that the motion routines
work right at the end of the line. Original value of rl_end is saved
as m->end. */
rl_extend_line_buffer (rl_end + 1);
rl_line_buffer[rl_end++] = ' ';
rl_line_buffer[rl_end] = '\0';
_rl_dispatch (c, _rl_keymap);
#if defined (READLINE_CALLBACKS)
if (RL_ISSTATE (RL_STATE_CALLBACK))
{
/* Messy case where char search can be vi motion command; see rest of
details in callback.c. vi_char_search and callback_char_search just
set and unset the CHARSEARCH state. This is where any vi motion
command that needs to set its own state should be handled, with any
corresponding code to manage that state in callback.c */
if (RL_ISSTATE (RL_STATE_CHARSEARCH))
return 0;
else
return (_rl_vi_domove_motion_cleanup (c, m));
}
#endif
return (_rl_vi_domove_motion_cleanup (c, m));
}
int
_rl_vi_domove_motion_cleanup (int c, _rl_vimotion_cxt *m)
{
int r;
/* Remove the blank that we added in rl_domove_motion_callback. */
rl_end = m->end;
rl_line_buffer[rl_end] = '\0';
_rl_fix_point (0);
/* No change in position means the command failed. */
if (rl_mark == rl_point)
{
/* 'c' and 'C' enter insert mode after the delete even if the motion
didn't delete anything, as long as the motion command is valid. */
if (_rl_to_upper (m->key) == 'C' && _rl_vi_motion_command (c))
return (vidomove_dispatch (m));
RL_UNSETSTATE (RL_STATE_VIMOTION);
return (-1);
}
/* rl_vi_f[wW]ord () leaves the cursor on the first character of the next
word. If we are not at the end of the line, and we are on a
non-whitespace character, move back one (presumably to whitespace). */
if ((_rl_to_upper (c) == 'W') && rl_point < rl_end && rl_point > rl_mark &&
!whitespace (rl_line_buffer[rl_point]))
rl_point--; /* XXX */
/* If cw or cW, back up to the end of a word, so the behaviour of ce
or cE is the actual result. Brute-force, no subtlety. */
if (m->key == 'c' && rl_point >= rl_mark && (_rl_to_upper (c) == 'W'))
{
/* Don't move farther back than where we started. */
while (rl_point > rl_mark && whitespace (rl_line_buffer[rl_point]))
rl_point--;
/* Posix.2 says that if cw or cW moves the cursor towards the end of
the line, the character under the cursor should be deleted. */
if (rl_point == rl_mark)
_rl_vi_advance_point ();
else
{
/* Move past the end of the word so that the kill doesn't
remove the last letter of the previous word. Only do this
if we are not at the end of the line. */
if (rl_point >= 0 && rl_point < (rl_end - 1) && !whitespace (rl_line_buffer[rl_point]))
_rl_vi_advance_point ();
}
}
if (rl_mark < rl_point)
SWAP (rl_point, rl_mark);
#if defined (READLINE_CALLBACKS)
if (RL_ISSTATE (RL_STATE_CALLBACK))
(*rl_redisplay_function)(); /* make sure motion is displayed */
#endif
r = vidomove_dispatch (m);
return (r);
}
#define RL_VIMOVENUMARG() (RL_ISSTATE (RL_STATE_VIMOTION) && RL_ISSTATE (RL_STATE_NUMERICARG))
static int
rl_domove_read_callback (_rl_vimotion_cxt *m)
{
int c, save;
c = m->motion;
if (member (c, vi_motion))
{
#if defined (READLINE_CALLBACKS)
/* If we just read a vi-mode motion command numeric argument, turn off
the `reading numeric arg' state */
if (RL_ISSTATE (RL_STATE_CALLBACK) && RL_VIMOVENUMARG())
RL_UNSETSTATE (RL_STATE_NUMERICARG);
#endif
/* Should do everything, including turning off RL_STATE_VIMOTION */
return (rl_domove_motion_callback (m));
}
else if (m->key == c && (m->key == 'd' || m->key == 'y' || m->key == 'c'))
{
rl_mark = rl_end;
rl_beg_of_line (1, c);
_rl_vi_last_motion = c;
RL_UNSETSTATE (RL_STATE_VIMOTION);
return (vidomove_dispatch (m));
}
#if defined (READLINE_CALLBACKS)
/* XXX - these need to handle rl_universal_argument bindings */
/* Reading vi motion char continuing numeric argument */
else if (_rl_digit_p (c) && RL_ISSTATE (RL_STATE_CALLBACK) && RL_VIMOVENUMARG())
{
return (_rl_vi_arg_dispatch (c));
}
/* Readine vi motion char starting numeric argument */
else if (_rl_digit_p (c) && RL_ISSTATE (RL_STATE_CALLBACK) && RL_ISSTATE (RL_STATE_VIMOTION) && (RL_ISSTATE (RL_STATE_NUMERICARG) == 0))
{
RL_SETSTATE (RL_STATE_NUMERICARG);
return (_rl_vi_arg_dispatch (c));
}
#endif
else if (_rl_digit_p (c))
{
/* This code path taken when not in callback mode */
save = rl_numeric_arg;
rl_numeric_arg = _rl_digit_value (c);
rl_explicit_arg = 1;
RL_SETSTATE (RL_STATE_NUMERICARG);
rl_digit_loop1 ();
rl_numeric_arg *= save;
c = rl_vi_domove_getchar (m);
if (c < 0)
{
m->motion = 0;
return -1;
}
m->motion = c;
return (rl_domove_motion_callback (m));
}
else
{
RL_UNSETSTATE (RL_STATE_VIMOTION);
RL_UNSETSTATE (RL_STATE_NUMERICARG);
return (1);
}
}
static int
rl_vi_domove_getchar (_rl_vimotion_cxt *m)
{
return (_rl_bracketed_read_key ());
}
#if defined (READLINE_CALLBACKS)
int
_rl_vi_domove_callback (_rl_vimotion_cxt *m)
{
int c, r;
m->motion = c = rl_vi_domove_getchar (m);
if (c < 0)
return 1; /* EOF */
r = rl_domove_read_callback (m);
return ((r == 0) ? r : 1); /* normalize return values */
}
#endif
/* This code path is taken when not in callback mode. */
int
rl_vi_domove (int x, int *ignore)
{
int r;
_rl_vimotion_cxt *m;
m = _rl_vimvcxt;
*ignore = m->motion = rl_vi_domove_getchar (m);
if (m->motion < 0)
{
m->motion = 0;
return -1;
}
return (rl_domove_read_callback (m));
}
static int
vi_delete_dispatch (_rl_vimotion_cxt *m)
{
/* These are the motion commands that do not require adjusting the
mark. */
if (((strchr (" l|h^0bBFT`", m->motion) == 0) && (rl_point >= m->start)) &&
(rl_mark < rl_end))
INCREMENT_POS (rl_mark);
rl_kill_text (rl_point, rl_mark);
return (0);
}
int
rl_vi_delete_to (int count, int key)
{
int c, r;
if (_rl_vimvcxt)
_rl_mvcxt_init (_rl_vimvcxt, VIM_DELETE, key);
else
_rl_vimvcxt = _rl_mvcxt_alloc (VIM_DELETE, key);
_rl_vimvcxt->start = rl_point;
rl_mark = rl_point;
if (_rl_uppercase_p (key))
{
_rl_vimvcxt->motion = '$';
r = rl_domove_motion_callback (_rl_vimvcxt);
}
else if (_rl_vi_redoing && _rl_vi_last_motion != 'd') /* `dd' is special */
{
_rl_vimvcxt->motion = _rl_vi_last_motion;
r = rl_domove_motion_callback (_rl_vimvcxt);
}
else if (_rl_vi_redoing) /* handle redoing `dd' here */
{
_rl_vimvcxt->motion = _rl_vi_last_motion;
rl_mark = rl_end;
rl_beg_of_line (1, key);
RL_UNSETSTATE (RL_STATE_VIMOTION);
r = vidomove_dispatch (_rl_vimvcxt);
}
#if defined (READLINE_CALLBACKS)
else if (RL_ISSTATE (RL_STATE_CALLBACK))
{
RL_SETSTATE (RL_STATE_VIMOTION);
return (0);
}
#endif
else
r = rl_vi_domove (key, &c);
if (r < 0)
{
rl_ding ();
r = -1;
}
_rl_mvcxt_dispose (_rl_vimvcxt);
_rl_vimvcxt = 0;
return r;
}
static int
vi_change_dispatch (_rl_vimotion_cxt *m)
{
/* These are the motion commands that do not require adjusting the
mark. c[wW] are handled by special-case code in rl_vi_domove(),
and already leave the mark at the correct location. */
if (((strchr (" l|hwW^0bBFT`", m->motion) == 0) && (rl_point >= m->start)) &&
(rl_mark < rl_end))
INCREMENT_POS (rl_mark);
/* The cursor never moves with c[wW]. */
if ((_rl_to_upper (m->motion) == 'W') && rl_point < m->start)
rl_point = m->start;
if (_rl_vi_redoing)
{
if (vi_insert_buffer && *vi_insert_buffer)
rl_begin_undo_group ();
rl_delete_text (rl_point, rl_mark);
if (vi_insert_buffer && *vi_insert_buffer)
{
rl_insert_text (vi_insert_buffer);
rl_end_undo_group ();
}
}
else
{
rl_begin_undo_group (); /* to make the `u' command work */
rl_kill_text (rl_point, rl_mark);
/* `C' does not save the text inserted for undoing or redoing. */
if (_rl_uppercase_p (m->key) == 0)
_rl_vi_doing_insert = 1;
/* XXX -- TODO -- use m->numericarg? */
rl_vi_start_inserting (m->key, rl_numeric_arg, rl_arg_sign);
}
return (0);
}
int
rl_vi_change_to (int count, int key)
{
int c, r;
if (_rl_vimvcxt)
_rl_mvcxt_init (_rl_vimvcxt, VIM_CHANGE, key);
else
_rl_vimvcxt = _rl_mvcxt_alloc (VIM_CHANGE, key);
_rl_vimvcxt->start = rl_point;
rl_mark = rl_point;
if (_rl_uppercase_p (key))
{
_rl_vimvcxt->motion = '$';
r = rl_domove_motion_callback (_rl_vimvcxt);
}
else if (_rl_vi_redoing && _rl_vi_last_motion != 'c') /* `cc' is special */
{
_rl_vimvcxt->motion = _rl_vi_last_motion;
r = rl_domove_motion_callback (_rl_vimvcxt);
}
else if (_rl_vi_redoing) /* handle redoing `cc' here */
{
_rl_vimvcxt->motion = _rl_vi_last_motion;
rl_mark = rl_end;
rl_beg_of_line (1, key);
RL_UNSETSTATE (RL_STATE_VIMOTION);
r = vidomove_dispatch (_rl_vimvcxt);
}
#if defined (READLINE_CALLBACKS)
else if (RL_ISSTATE (RL_STATE_CALLBACK))
{
RL_SETSTATE (RL_STATE_VIMOTION);
return (0);
}
#endif
else
r = rl_vi_domove (key, &c);
if (r < 0)
{
rl_ding ();
r = -1; /* normalize return value */
}
_rl_mvcxt_dispose (_rl_vimvcxt);
_rl_vimvcxt = 0;
return r;
}
static int
vi_yank_dispatch (_rl_vimotion_cxt *m)
{
/* These are the motion commands that do not require adjusting the
mark. */
if (((strchr (" l|h^0%bBFT`", m->motion) == 0) && (rl_point >= m->start)) &&
(rl_mark < rl_end))
INCREMENT_POS (rl_mark);
rl_begin_undo_group ();
rl_kill_text (rl_point, rl_mark);
rl_end_undo_group ();
rl_do_undo ();
rl_point = m->start;
_rl_fix_point (1);
return (0);
}
int
rl_vi_yank_to (int count, int key)
{
int c, r;
if (_rl_vimvcxt)
_rl_mvcxt_init (_rl_vimvcxt, VIM_YANK, key);
else
_rl_vimvcxt = _rl_mvcxt_alloc (VIM_YANK, key);
_rl_vimvcxt->start = rl_point;
rl_mark = rl_point;
if (_rl_uppercase_p (key))
{
_rl_vimvcxt->motion = '$';
r = rl_domove_motion_callback (_rl_vimvcxt);
}
else if (_rl_vi_redoing && _rl_vi_last_motion != 'y') /* `yy' is special */
{
_rl_vimvcxt->motion = _rl_vi_last_motion;
r = rl_domove_motion_callback (_rl_vimvcxt);
}
else if (_rl_vi_redoing) /* handle redoing `yy' here */
{
_rl_vimvcxt->motion = _rl_vi_last_motion;
rl_mark = rl_end;
rl_beg_of_line (1, key);
RL_UNSETSTATE (RL_STATE_VIMOTION);
r = vidomove_dispatch (_rl_vimvcxt);
}
#if defined (READLINE_CALLBACKS)
else if (RL_ISSTATE (RL_STATE_CALLBACK))
{
RL_SETSTATE (RL_STATE_VIMOTION);
return (0);
}
#endif
else
r = rl_vi_domove (key, &c);
if (r < 0)
{
rl_ding ();
r = -1;
}
_rl_mvcxt_dispose (_rl_vimvcxt);
_rl_vimvcxt = 0;
return r;
}
static int
vidomove_dispatch (_rl_vimotion_cxt *m)
{
int r;
switch (m->op)
{
case VIM_DELETE:
r = vi_delete_dispatch (m);
break;
case VIM_CHANGE:
r = vi_change_dispatch (m);
break;
case VIM_YANK:
r = vi_yank_dispatch (m);
break;
default:
_rl_errmsg ("vidomove_dispatch: unknown operator %d", m->op);
r = 1;
break;
}
RL_UNSETSTATE (RL_STATE_VIMOTION);
return r;
}
int
rl_vi_rubout (int count, int key)
{
int opoint;
if (count < 0)
return (rl_vi_delete (-count, key));
if (rl_point == 0)
{
rl_ding ();
return 1;
}
opoint = rl_point;
if (count > 1 && MB_CUR_MAX > 1 && rl_byte_oriented == 0)
rl_backward_char (count, key);
else if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
rl_point = _rl_find_prev_mbchar (rl_line_buffer, rl_point, MB_FIND_NONZERO);
else
rl_point -= count;
if (rl_point < 0)
rl_point = 0;
rl_kill_text (rl_point, opoint);
return (0);
}
int
rl_vi_delete (int count, int key)
{
int end;
if (count < 0)
return (rl_vi_rubout (-count, key));
if (rl_end == 0)
{
rl_ding ();
return 1;
}
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
end = _rl_find_next_mbchar (rl_line_buffer, rl_point, count, MB_FIND_NONZERO);
else
end = rl_point + count;
if (end >= rl_end)
end = rl_end;
rl_kill_text (rl_point, end);
if (rl_point > 0 && rl_point == rl_end)
rl_backward_char (1, key);
return (0);
}
/* This does what Posix specifies vi-mode C-w to do: using whitespace and
punctuation characters as the word boundaries. */
#define vi_unix_word_boundary(c) (whitespace(c) || ispunct(c))
int
rl_vi_unix_word_rubout (int count, int key)
{
int orig_point;
if (rl_point == 0)
rl_ding ();
else
{
orig_point = rl_point;
if (count <= 0)
count = 1;
while (count--)
{
/* This isn't quite what ksh93 does but it seems to match what the
Posix description of sh specifies, with a few accommodations
for sequences of whitespace characters between words and at
the end of the line. */
/* Skip over whitespace at the end of the line as a special case */
if (rl_point > 0 && (rl_line_buffer[rl_point] == 0) &&
whitespace (rl_line_buffer[rl_point - 1]))
while (--rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
;
/* If we're at the start of a word, move back to word boundary so we
move back to the `preceding' word */
if (rl_point > 0 && (vi_unix_word_boundary (rl_line_buffer[rl_point]) == 0) &&
vi_unix_word_boundary (rl_line_buffer[rl_point - 1]))
rl_point--;
/* If we are at a word boundary (whitespace/punct), move backward
past a sequence of word boundary characters. If we are at the
end of a word (non-word boundary), move back to a word boundary */
if (rl_point > 0 && vi_unix_word_boundary (rl_line_buffer[rl_point]))
while (rl_point && vi_unix_word_boundary (rl_line_buffer[rl_point - 1]))
rl_point--;
else if (rl_point > 0 && vi_unix_word_boundary (rl_line_buffer[rl_point]) == 0)
while (rl_point > 0 && (vi_unix_word_boundary (rl_line_buffer[rl_point - 1]) == 0))
_rl_vi_backup_point ();
}
rl_kill_text (orig_point, rl_point);
}
return 0;
}
int
rl_vi_back_to_indent (int count, int key)
{
rl_beg_of_line (1, key);
while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
rl_point++;
return (0);
}
int
rl_vi_first_print (int count, int key)
{
return (rl_vi_back_to_indent (1, key));
}
static int _rl_cs_dir, _rl_cs_orig_dir;
#if defined (READLINE_CALLBACKS)
static int
_rl_vi_callback_char_search (_rl_callback_generic_arg *data)
{
int c;
#if defined (HANDLE_MULTIBYTE)
c = _rl_vi_last_search_mblen = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
#else
RL_SETSTATE(RL_STATE_MOREINPUT);
c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
#endif
if (c <= 0)
{
RL_UNSETSTATE (RL_STATE_CHARSEARCH);
return -1;
}
#if !defined (HANDLE_MULTIBYTE)
_rl_vi_last_search_char = c;
#endif
_rl_callback_func = 0;
_rl_want_redisplay = 1;
RL_UNSETSTATE (RL_STATE_CHARSEARCH);
#if defined (HANDLE_MULTIBYTE)
return (_rl_char_search_internal (data->count, _rl_cs_dir, _rl_vi_last_search_mbchar, _rl_vi_last_search_mblen));
#else
return (_rl_char_search_internal (data->count, _rl_cs_dir, _rl_vi_last_search_char));
#endif
}
#endif
int
rl_vi_char_search (int count, int key)
{
int c;
#if defined (HANDLE_MULTIBYTE)
static char *target;
static int tlen;
#else
static char target;
#endif
if (key == ';' || key == ',')
{
if (_rl_cs_orig_dir == 0)
return 1;
#if defined (HANDLE_MULTIBYTE)
if (_rl_vi_last_search_mblen == 0)
return 1;
#else
if (_rl_vi_last_search_char == 0)
return 1;
#endif
_rl_cs_dir = (key == ';') ? _rl_cs_orig_dir : -_rl_cs_orig_dir;
}
else
{
switch (key)
{
case 't':
_rl_cs_orig_dir = _rl_cs_dir = FTO;
break;
case 'T':
_rl_cs_orig_dir = _rl_cs_dir = BTO;
break;
case 'f':
_rl_cs_orig_dir = _rl_cs_dir = FFIND;
break;
case 'F':
_rl_cs_orig_dir = _rl_cs_dir = BFIND;
break;
}
if (_rl_vi_redoing)
{
/* set target and tlen below */
}
#if defined (READLINE_CALLBACKS)
else if (RL_ISSTATE (RL_STATE_CALLBACK))
{
_rl_callback_data = _rl_callback_data_alloc (count);
_rl_callback_data->i1 = _rl_cs_dir;
_rl_callback_data->i2 = key;
_rl_callback_func = _rl_vi_callback_char_search;
RL_SETSTATE (RL_STATE_CHARSEARCH);
return (0);
}
#endif
else
{
#if defined (HANDLE_MULTIBYTE)
c = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
if (c <= 0)
return -1;
_rl_vi_last_search_mblen = c;
#else
RL_SETSTATE(RL_STATE_MOREINPUT);
c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
if (c < 0)
return -1;
_rl_vi_last_search_char = c;
#endif
}
}
#if defined (HANDLE_MULTIBYTE)
target = _rl_vi_last_search_mbchar;
tlen = _rl_vi_last_search_mblen;
#else
target = _rl_vi_last_search_char;
#endif
#if defined (HANDLE_MULTIBYTE)
return (_rl_char_search_internal (count, _rl_cs_dir, target, tlen));
#else
return (_rl_char_search_internal (count, _rl_cs_dir, target));
#endif
}
/* Match brackets */
int
rl_vi_match (int ignore, int key)
{
int count = 1, brack, pos, tmp, pre;
pos = rl_point;
if ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0)
{
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
{
while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0)
{
pre = rl_point;
rl_forward_char (1, key);
if (pre == rl_point)
break;
}
}
else
while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0 &&
rl_point < rl_end - 1)
rl_forward_char (1, key);
if (brack <= 0)
{
rl_point = pos;
rl_ding ();
return 1;
}
}
pos = rl_point;
if (brack < 0)
{
while (count)
{
tmp = pos;
if (MB_CUR_MAX == 1 || rl_byte_oriented)
pos--;
else
{
pos = _rl_find_prev_mbchar (rl_line_buffer, pos, MB_FIND_ANY);
if (tmp == pos)
pos--;
}
if (pos >= 0)
{
int b = rl_vi_bracktype (rl_line_buffer[pos]);
if (b == -brack)
count--;
else if (b == brack)
count++;
}
else
{
rl_ding ();
return 1;
}
}
}
else
{ /* brack > 0 */
while (count)
{
if (MB_CUR_MAX == 1 || rl_byte_oriented)
pos++;
else
pos = _rl_find_next_mbchar (rl_line_buffer, pos, 1, MB_FIND_ANY);
if (pos < rl_end)
{
int b = rl_vi_bracktype (rl_line_buffer[pos]);
if (b == -brack)
count--;
else if (b == brack)
count++;
}
else
{
rl_ding ();
return 1;
}
}
}
rl_point = pos;
return (0);
}
int
rl_vi_bracktype (int c)
{
switch (c)
{
case '(': return 1;
case ')': return -1;
case '[': return 2;
case ']': return -2;
case '{': return 3;
case '}': return -3;
default: return 0;
}
}
static int
_rl_vi_change_char (int count, int c, char *mb)
{
int p;
if (c == '\033' || c == CTRL ('C'))
return -1;
rl_begin_undo_group ();
while (count-- && rl_point < rl_end)
{
p = rl_point;
rl_vi_delete (1, c);
if (rl_point < p) /* Did we retreat at EOL? */
_rl_vi_append_forward (c);
#if defined (HANDLE_MULTIBYTE)
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
rl_insert_text (mb);
else
#endif
_rl_insert_char (1, c);
}
/* The cursor shall be left on the last character changed. */
rl_backward_char (1, c);
rl_end_undo_group ();
return (0);
}
static int
_rl_vi_callback_getchar (char *mb, int mlen)
{
return (_rl_bracketed_read_mbstring (mb, mlen));
}
#if defined (READLINE_CALLBACKS)
static int
_rl_vi_callback_change_char (_rl_callback_generic_arg *data)
{
int c;
char mb[MB_LEN_MAX+1];
c = _rl_vi_callback_getchar (mb, MB_LEN_MAX);
#if defined (HANDLE_MULTIBYTE)
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
strncpy (_rl_vi_last_replacement, mb, MB_LEN_MAX);
else
#endif
_rl_vi_last_replacement[0] = c;
_rl_vi_last_replacement[MB_LEN_MAX] = '\0'; /* XXX */
if (c < 0)
return -1;
_rl_callback_func = 0;
_rl_want_redisplay = 1;
return (_rl_vi_change_char (data->count, c, mb));
}
#endif
int
rl_vi_change_char (int count, int key)
{
int c;
char mb[MB_LEN_MAX+1];
if (_rl_vi_redoing)
{
strncpy (mb, _rl_vi_last_replacement, MB_LEN_MAX);
c = (unsigned char)_rl_vi_last_replacement[0]; /* XXX */
mb[MB_LEN_MAX] = '\0';
}
#if defined (READLINE_CALLBACKS)
else if (RL_ISSTATE (RL_STATE_CALLBACK))
{
_rl_callback_data = _rl_callback_data_alloc (count);
_rl_callback_func = _rl_vi_callback_change_char;
return (0);
}
#endif
else
{
c = _rl_vi_callback_getchar (mb, MB_LEN_MAX);
#ifdef HANDLE_MULTIBYTE
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
strncpy (_rl_vi_last_replacement, mb, MB_LEN_MAX);
else
#endif
_rl_vi_last_replacement[0] = c;
_rl_vi_last_replacement[MB_LEN_MAX] = '\0'; /* just in case */
}
if (c < 0)
return -1;
return (_rl_vi_change_char (count, c, mb));
}
int
rl_vi_subst (int count, int key)
{
/* If we are redoing, rl_vi_change_to will stuff the last motion char */
if (_rl_vi_redoing == 0)
rl_stuff_char ((key == 'S') ? 'c' : 'l'); /* `S' == `cc', `s' == `cl' */
return (rl_vi_change_to (count, 'c'));
}
int
rl_vi_overstrike (int count, int key)
{
if (_rl_vi_doing_insert == 0)
{
_rl_vi_doing_insert = 1;
rl_begin_undo_group ();
}
if (count > 0)
{
_rl_overwrite_char (count, key);
vi_replace_count += count;
}
return (0);
}
int
rl_vi_overstrike_delete (int count, int key)
{
int i, s;
for (i = 0; i < count; i++)
{
if (vi_replace_count == 0)
{
rl_ding ();
break;
}
s = rl_point;
if (rl_do_undo ())
vi_replace_count--; /* XXX */
if (rl_point == s)
rl_backward_char (1, key);
}
if (vi_replace_count == 0 && _rl_vi_doing_insert)
{
rl_end_undo_group ();
rl_do_undo ();
_rl_vi_doing_insert = 0;
}
return (0);
}
static int
rl_vi_overstrike_kill_line (int count, int key)
{
int r, end;
end = rl_end;
r = rl_unix_line_discard (count, key);
vi_replace_count -= end - rl_end;
return r;
}
static int
rl_vi_overstrike_kill_word (int count, int key)
{
int r, end;
end = rl_end;
r = rl_vi_unix_word_rubout (count, key);
vi_replace_count -= end - rl_end;
return r;
}
static int
rl_vi_overstrike_yank (int count, int key)
{
int r, end;
end = rl_end;
r = rl_yank (count, key);
vi_replace_count += rl_end - end;
return r;
}
/* Read bracketed paste mode pasted text and insert it in overwrite mode */
static int
rl_vi_overstrike_bracketed_paste (int count, int key)
{
int r;
char *pbuf;
size_t pblen;
pbuf = _rl_bracketed_text (&pblen);
if (pblen == 0)
{
xfree (pbuf);
return 0;
}
r = pblen;
while (--r >= 0)
_rl_unget_char ((unsigned char)pbuf[r]);
xfree (pbuf);
while (_rl_pushed_input_available ())
{
key = rl_read_key ();
r = rl_vi_overstrike (1, key);
}
return r;
}
int
rl_vi_replace (int count, int key)
{
int i;
vi_replace_count = 0;
if (vi_replace_map == 0)
{
vi_replace_map = rl_make_bare_keymap ();
for (i = 0; i < ' '; i++)
if (vi_insertion_keymap[i].type == ISFUNC)
vi_replace_map[i].function = vi_insertion_keymap[i].function;
for (i = ' '; i < KEYMAP_SIZE; i++)
vi_replace_map[i].function = rl_vi_overstrike;
vi_replace_map[RUBOUT].function = rl_vi_overstrike_delete;
/* Make sure these are what we want. */
vi_replace_map[ESC].function = rl_vi_movement_mode;
vi_replace_map[RETURN].function = rl_newline;
vi_replace_map[NEWLINE].function = rl_newline;
/* If the normal vi insertion keymap has ^H bound to erase, do the
same here. Probably should remove the assignment to RUBOUT up
there, but I don't think it will make a difference in real life. */
if (vi_insertion_keymap[CTRL ('H')].type == ISFUNC &&
vi_insertion_keymap[CTRL ('H')].function == rl_rubout)
vi_replace_map[CTRL ('H')].function = rl_vi_overstrike_delete;
/* Same for ^U and unix-line-discard. */
if (vi_insertion_keymap[CTRL ('U')].type == ISFUNC &&
vi_insertion_keymap[CTRL ('U')].function == rl_unix_line_discard)
vi_replace_map[CTRL ('U')].function = rl_vi_overstrike_kill_line;
/* And for ^W and unix-word-rubout. */
if (vi_insertion_keymap[CTRL ('W')].type == ISFUNC &&
vi_insertion_keymap[CTRL ('W')].function == rl_vi_unix_word_rubout)
vi_replace_map[CTRL ('W')].function = rl_vi_overstrike_kill_word;
/* And finally for ^Y and yank. */
if (vi_insertion_keymap[CTRL ('Y')].type == ISFUNC &&
vi_insertion_keymap[CTRL ('Y')].function == rl_yank)
vi_replace_map[CTRL ('Y')].function = rl_vi_overstrike_yank;
/* Make sure this is the value we need. */
vi_replace_map[ANYOTHERKEY].type = ISFUNC;
vi_replace_map[ANYOTHERKEY].function = (rl_command_func_t *)NULL;
}
rl_vi_start_inserting (key, 1, rl_arg_sign);
_rl_vi_last_key_before_insert = 'R'; /* in case someone rebinds it */
_rl_keymap = vi_replace_map;
if (_rl_enable_bracketed_paste)
rl_bind_keyseq_if_unbound (BRACK_PASTE_PREF, rl_vi_overstrike_bracketed_paste);
return (0);
}
#if 0
/* Try to complete the word we are standing on or the word that ends with
the previous character. A space matches everything. Word delimiters are
space and ;. */
int
rl_vi_possible_completions (void)
{
int save_pos = rl_point;
if (rl_line_buffer[rl_point] != ' ' && rl_line_buffer[rl_point] != ';')
{
while (rl_point < rl_end && rl_line_buffer[rl_point] != ' ' &&
rl_line_buffer[rl_point] != ';')
_rl_vi_advance_point ();
}
else if (rl_line_buffer[rl_point - 1] == ';')
{
rl_ding ();
return (0);
}
rl_possible_completions ();
rl_point = save_pos;
return (0);
}
#endif
/* Functions to save and restore marks. */
static int
_rl_vi_set_mark (void)
{
int ch;
RL_SETSTATE(RL_STATE_MOREINPUT);
ch = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
if (ch < 0 || ch < 'a' || ch > 'z') /* make test against 0 explicit */
{
rl_ding ();
return 1;
}
ch -= 'a';
vi_mark_chars[ch] = rl_point;
return 0;
}
#if defined (READLINE_CALLBACKS)
static int
_rl_vi_callback_set_mark (_rl_callback_generic_arg *data)
{
_rl_callback_func = 0;
_rl_want_redisplay = 1;
return (_rl_vi_set_mark ());
}
#endif
int
rl_vi_set_mark (int count, int key)
{
#if defined (READLINE_CALLBACKS)
if (RL_ISSTATE (RL_STATE_CALLBACK))
{
_rl_callback_data = 0;
_rl_callback_func = _rl_vi_callback_set_mark;
return (0);
}
#endif
return (_rl_vi_set_mark ());
}
static int
_rl_vi_goto_mark (void)
{
int ch;
RL_SETSTATE(RL_STATE_MOREINPUT);
ch = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
if (ch == '`')
{
rl_point = rl_mark;
_rl_fix_point (1);
return 0;
}
else if (ch < 0 || ch < 'a' || ch > 'z') /* make test against 0 explicit */
{
rl_ding ();
return 1;
}
ch -= 'a';
if (vi_mark_chars[ch] == -1)
{
rl_ding ();
return 1;
}
rl_point = vi_mark_chars[ch];
_rl_fix_point (1);
return 0;
}
#if defined (READLINE_CALLBACKS)
static int
_rl_vi_callback_goto_mark (_rl_callback_generic_arg *data)
{
_rl_callback_func = 0;
_rl_want_redisplay = 1;
return (_rl_vi_goto_mark ());
}
#endif
int
rl_vi_goto_mark (int count, int key)
{
#if defined (READLINE_CALLBACKS)
if (RL_ISSTATE (RL_STATE_CALLBACK))
{
_rl_callback_data = 0;
_rl_callback_func = _rl_vi_callback_goto_mark;
return (0);
}
#endif
return (_rl_vi_goto_mark ());
}
#endif /* VI_MODE */
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