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Diffstat (limited to 'lib/readline/vi_mode.c')
| -rw-r--r-- | lib/readline/vi_mode.c | 2408 |
1 files changed, 2408 insertions, 0 deletions
diff --git a/lib/readline/vi_mode.c b/lib/readline/vi_mode.c new file mode 100644 index 0000000..742341e --- /dev/null +++ b/lib/readline/vi_mode.c @@ -0,0 +1,2408 @@ +/* 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 */ |