diff options
Diffstat (limited to 'gdb/readline/vi_mode.c')
| -rw-r--r-- | gdb/readline/vi_mode.c | 856 |
1 files changed, 0 insertions, 856 deletions
diff --git a/gdb/readline/vi_mode.c b/gdb/readline/vi_mode.c deleted file mode 100644 index f750b41..0000000 --- a/gdb/readline/vi_mode.c +++ /dev/null @@ -1,856 +0,0 @@ -/* vi_mode.c -- A vi emulation mode for Bash. - Mostly written by Jeff Sparkes (jeff1@????). - */ - - -/* **************************************************************** */ -/* */ -/* VI Emulation Mode */ -/* */ -/* **************************************************************** */ - -/* Last string searched for from `/' or `?'. */ -static char *vi_last_search = (char *)NULL; -static int vi_histpos; - -/* *** UNCLEAN *** */ -/* Command keys which do movement for xxx_to commands. */ -static char *vi_motion = " hl^$0ftFt;,%wbeWBE|"; - -/* Keymap used for vi replace characters. Created dynamically since - rarely used. */ -static Keymap vi_replace_map = (Keymap)NULL; - -/* The number of characters inserted in the last replace operation. */ -static vi_replace_count = 0; - -/* Yank the nth arg from the previous line into this line at point. */ -rl_vi_yank_arg (count) - int count; -{ - rl_yank_nth_arg (count); -} - -/* Search again for the last thing searched for. */ -rl_vi_search_again (ignore, key) - int ignore, key; -{ - switch (key) - { - case 'n': - rl_vi_dosearch (vi_last_search, -1); - break; - - case 'N': - rl_vi_dosearch (vi_last_search, 1); - break; - } -} - -/* Do a vi style search. */ -rl_vi_search (count, key) - int count, key; -{ - int dir, c; - char *p; - - switch (key) - { - case '?': - dir = 1; - break; - - case '/': - dir = -1; - break; - - default: - ding (); - return; - } - - vi_histpos = where_history (); - maybe_save_line (); - - /* Reuse the line input buffer to read the search string. */ - the_line[0] = 0; - rl_end = rl_point = 0; - p = (char *)alloca (2 + rl_prompt ? strlen (rl_prompt) : 0); - - sprintf (p, "%s%c", rl_prompt ? rl_prompt : "", key); - - rl_message (p); - - while (c = rl_read_key (in_stream)) - { - switch (c) - { - case CTRL('W'): - case CTRL('U'): - case CTRL('H'): - case RUBOUT: - rl_dispatch (c, keymap); - break; - - case ESC: - case RETURN: - case NEWLINE: - goto dosearch; - break; - - case CTRL('C'): - maybe_unsave_line (); - rl_clear_message (); - rl_point = 0; - ding (); - return; - - default: - rl_insert (1, c); - break; - } - rl_redisplay (); - } - dosearch: - if (vi_last_search) - free (vi_last_search); - - vi_last_search = savestring (the_line); - rl_vi_dosearch (the_line, dir); -} - -rl_vi_dosearch (string, dir) - char *string; - int dir; -{ - int old, save = vi_histpos; - HIST_ENTRY *h; - - if (string == 0 || *string == 0 || vi_histpos < 0) - { - ding (); - return; - } - - if ((save = history_search_pos (string, dir, vi_histpos + dir)) == -1) - { - maybe_unsave_line (); - rl_clear_message (); - rl_point = 0; - ding (); - return; - } - - vi_histpos = save; - - old = where_history (); - history_set_pos (vi_histpos); - h = current_history (); - history_set_pos (old); - - strcpy (the_line, h->line); - rl_undo_list = (UNDO_LIST *)h->data; - rl_end = strlen (the_line); - rl_point = 0; - rl_clear_message (); -} - -/* Completion, from vi's point of view. */ -rl_vi_complete (ignore, key) - int ignore, key; -{ - if (!whitespace (the_line[rl_point])) - { - rl_vi_end_word (1, 'E'); - rl_point++; - } - rl_complete_internal ('*'); - rl_vi_insertion_mode (); -} - -/* Previous word in vi mode. */ -rl_vi_prev_word (count, key) - int count, key; -{ - if (count < 0) - { - rl_vi_next_word (-count, key); - return; - } - - if (uppercase_p (key)) - rl_vi_bWord (count); - else - rl_vi_bword (count); -} - -/* Next word in vi mode. */ -rl_vi_next_word (count, key) - int count; -{ - if (count < 0) - { - rl_vi_prev_word (-count, key); - return; - } - - if (uppercase_p (key)) - rl_vi_fWord (count); - else - rl_vi_fword (count); -} - -/* Move to the end of the ?next? word. */ -rl_vi_end_word (count, key) - int count, key; -{ - if (count < 0) - { - ding (); - return; - } - - if (uppercase_p (key)) - rl_vi_eWord (count); - else - rl_vi_eword (count); -} - -/* Move forward a word the way that 'W' does. */ -rl_vi_fWord (count) - int count; -{ - while (count-- && rl_point < (rl_end - 1)) - { - /* Skip until whitespace. */ - while (!whitespace (the_line[rl_point]) && rl_point < rl_end) - rl_point++; - - /* Now skip whitespace. */ - while (whitespace (the_line[rl_point]) && rl_point < rl_end) - rl_point++; - } -} - -rl_vi_bWord (count) - int count; -{ - while (count-- && rl_point > 0) - { - while (rl_point-- >= 0 && whitespace (the_line[rl_point])); - while (rl_point >= 0 && !whitespace (the_line[rl_point])) - rl_point--; - rl_point++; - } -} - -rl_vi_eWord (count) - int count; -{ - while (count -- && rl_point < (rl_end - 1)) - { - while (rl_point++ < rl_end && whitespace (the_line[rl_point])); - while (rl_point++ < rl_end && !whitespace (the_line[rl_point])); - rl_point--; - } -} - -rl_vi_fword (count) - int count; -{ - while (count -- && rl_point < (rl_end - 1)) - { - if (isident (the_line[rl_point])) - { - while (isident (the_line[rl_point]) && rl_point < rl_end) - rl_point += 1; - } - else if (!whitespace (the_line[rl_point])) - { - while (!isident (the_line[rl_point]) && - !whitespace (the_line[rl_point]) && rl_point < rl_end) - rl_point += 1; - } - - while (whitespace (the_line[rl_point]) && rl_point < rl_end) - rl_point++; - } -} - -rl_vi_bword (count) - int count; -{ - while (count -- && rl_point > 0) - { - while (--rl_point > 0 && whitespace (the_line[rl_point])); - if (rl_point > 0) - { - if (isident (the_line[rl_point])) - while (--rl_point >= 0 && isident (the_line[rl_point])); - else - while (--rl_point >= 0 && !isident (the_line[rl_point]) && - !whitespace (the_line[rl_point])); - rl_point++; - } - } -} - -rl_vi_eword (count) - int count; -{ - while (count -- && rl_point < rl_end - 1) - { - while (++rl_point < rl_end && whitespace (the_line[rl_point])); - - if (rl_point < rl_end) - { - if (isident (the_line[rl_point])) - while (++rl_point < rl_end && isident (the_line[rl_point])); - else - while (++rl_point < rl_end && !isident (the_line[rl_point]) - && !whitespace (the_line[rl_point])); - rl_point--; - } - } -} - -rl_vi_insert_beg () -{ - rl_beg_of_line (); - rl_vi_insertion_mode (); - return 0; -} - -rl_vi_append_mode () -{ - if (rl_point < rl_end) - rl_point += 1; - rl_vi_insertion_mode (); - return 0; -} - -rl_vi_append_eol () -{ - rl_end_of_line (); - rl_vi_append_mode (); - return 0; -} - -/* What to do in the case of C-d. */ -rl_vi_eof_maybe (count, c) - int count, c; -{ - rl_newline (1, '\n'); -} - -/* Insertion mode stuff. */ - -/* Switching from one mode to the other really just involves - switching keymaps. */ -rl_vi_insertion_mode () -{ - keymap = vi_insertion_keymap; -} - -rl_vi_movement_mode () -{ - if (rl_point > 0) - rl_backward (1); - - keymap = vi_movement_keymap; - if (vi_doing_insert) - { - rl_end_undo_group (); - vi_doing_insert = 0; - } -} - -rl_vi_arg_digit (count, c) - int count, c; -{ - if (c == '0' && rl_numeric_arg == 1 && !rl_explicit_arg) - rl_beg_of_line (); - else - rl_digit_argument (count, c); -} - -/* Doesn't take an arg count in vi */ -rl_vi_change_case (ignore1, ignore2) - int ignore1, ignore2; -{ - char c = 0; - - if (uppercase_p (the_line[rl_point])) - c = to_lower (the_line[rl_point]); - else if (lowercase_p (the_line[rl_point])) - c = to_upper (the_line[rl_point]); - - /* Vi is kind of strange here. */ - if (c) - { - rl_begin_undo_group (); - rl_delete (1); - rl_insert (1, c); - rl_end_undo_group (); - rl_vi_check (); - } - else - rl_forward (1); -} - -rl_vi_put (count, key) - int count, key; -{ - if (!uppercase_p (key)) - rl_forward (1); - - rl_yank (); - rl_backward (1); -} - -rl_vi_check () -{ - if (rl_point && rl_point == rl_end) - rl_point--; -} - -rl_vi_column (count) -{ - if (count > rl_end) - rl_end_of_line (); - else - rl_point = count - 1; -} - -int -rl_vi_domove () -{ - int c, save; - - rl_mark = rl_point; - c = rl_read_key (in_stream); - - if (!member (c, vi_motion)) - { - if (digit (c)) - { - save = rl_numeric_arg; - rl_digit_loop1 (); - rl_numeric_arg *= save; - } - else - return (-1); - } - - rl_dispatch (c, keymap); - - /* No change in position means the command failed. */ - if (rl_mark == rl_point) - return (-1); - - if ((c == 'w' || c == 'W') && rl_point < rl_end) - rl_point--; - - if (rl_mark < rl_point) - exchange (rl_point, rl_mark); - - return (0); -} - -/* A simplified loop for vi. Don't dispatch key at end. - Don't recognize minus sign? */ -rl_digit_loop1 () -{ - int key, c; - - while (1) - { - rl_message ("(arg: %d) ", arg_sign * rl_numeric_arg); - key = c = rl_read_key (); - - if (keymap[c].type == ISFUNC && - keymap[c].function == rl_universal_argument) - { - rl_numeric_arg *= 4; - continue; - } - c = UNMETA (c); - if (numeric (c)) - { - if (rl_explicit_arg) - rl_numeric_arg = (rl_numeric_arg * 10) + (c - '0'); - else - rl_numeric_arg = (c - '0'); - rl_explicit_arg = 1; - } - else - { - rl_clear_message (); - rl_stuff_char (key); - } - } -} - -rl_vi_delete_to (count, key) - int count, key; -{ - if (uppercase_p (key)) - rl_stuff_char ('$'); - - if (rl_vi_domove ()) - { - ding (); - return; - } - - rl_kill_text (rl_point, rl_mark); -} - -rl_vi_change_to (count, key) - int count, key; -{ - if (uppercase_p (key)) - rl_stuff_char ('$'); - - if (rl_vi_domove ()) - { - ding (); - return; - } - - rl_begin_undo_group (); - vi_doing_insert = 1; - rl_kill_text (rl_point, rl_mark); - rl_vi_insertion_mode (); -} - -rl_vi_yank_to (count, key) - int count, key; -{ - int save = rl_point; - - if (uppercase_p (key)) - rl_stuff_char ('$'); - - if (rl_vi_domove ()) - { - ding (); - return; - } - - rl_begin_undo_group (); - rl_kill_text (rl_point, rl_mark); - rl_end_undo_group (); - rl_do_undo (); - rl_point = save; -} - -rl_vi_delete (count) -{ - if (rl_point >= rl_end - 1) - { - rl_delete (count); - if (rl_point > 0) - rl_backward (1); - } - else - rl_delete (count); -} - -/* Turn the current line into a comment in shell history. A ksh function */ -rl_vi_comment () -{ - rl_beg_of_line (); - rl_insert_text (": "); /* # doesn't work in interactive mode */ - rl_redisplay (); - rl_newline (1, '\010'); -} - -rl_vi_first_print () -{ - rl_back_to_indent (); -} - -rl_back_to_indent (ignore1, ignore2) - int ignore1, ignore2; -{ - rl_beg_of_line (); - while (rl_point < rl_end && whitespace (the_line[rl_point])) - rl_point++; -} - -/* NOTE: it is necessary that opposite directions are inverses */ -#define FTO 1 /* forward to */ -#define BTO -1 /* backward to */ -#define FFIND 2 /* forward find */ -#define BFIND -2 /* backward find */ - -rl_vi_char_search (count, key) - int count, key; -{ - static char target; - static int orig_dir, dir; - int pos; - - if (key == ';' || key == ',') - dir = (key == ';' ? orig_dir : -orig_dir); - else - { - target = rl_getc (in_stream); - - switch (key) - { - case 't': - orig_dir = dir = FTO; - break; - - case 'T': - orig_dir = dir = BTO; - break; - - case 'f': - orig_dir = dir = FFIND; - break; - - case 'F': - orig_dir = dir = BFIND; - break; - } - } - - pos = rl_point; - - if (dir < 0) - { - pos--; - do - { - if (the_line[pos] == target) - { - if (dir == BTO) - rl_point = pos + 1; - else - rl_point = pos; - return; - } - } - while (pos--); - - if (pos < 0) - { - ding (); - return; - } - } - else - { /* dir > 0 */ - pos++; - do - { - if (the_line[pos] == target) - { - if (dir == FTO) - rl_point = pos - 1; - else - rl_point = pos; - return; - } - } - while (++pos < rl_end); - - if (pos >= (rl_end - 1)) - ding (); - } -} - -/* Match brackets */ -rl_vi_match () -{ - int count = 1, brack, pos; - - pos = rl_point; - if ((brack = rl_vi_bracktype (the_line[rl_point])) == 0) - { - while ((brack = rl_vi_bracktype (the_line[rl_point])) == 0 && - rl_point < rl_end - 1) - rl_forward (1); - - if (brack <= 0) - { - rl_point = pos; - ding (); - return; - } - } - - pos = rl_point; - - if (brack < 0) - { - while (count) - { - if (--pos >= 0) - { - int b = rl_vi_bracktype (the_line[pos]); - if (b == -brack) - count--; - else if (b == brack) - count++; - } - else - { - ding (); - return; - } - } - } - else - { /* brack > 0 */ - while (count) - { - if (++pos < rl_end) - { - int b = rl_vi_bracktype (the_line[pos]); - if (b == -brack) - count--; - else if (b == brack) - count++; - } - else - { - ding (); - return; - } - } - } - rl_point = pos; -} - -int -rl_vi_bracktype (c) - 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; - } -} - -rl_vi_change_char () -{ - int c; - - c = rl_getc (in_stream); - - switch (c) - { - case '\033': - case CTRL('C'): - return; - - default: - rl_begin_undo_group (); - rl_delete (1); - rl_insert (1, c); - rl_end_undo_group (); - break; - } -} - -rl_vi_subst (count, key) - int count, key; -{ - rl_begin_undo_group (); - vi_doing_insert = 1; - - if (uppercase_p (key)) - { - rl_beg_of_line (); - rl_kill_line (1); - } - else - rl_delete (1); - - rl_vi_insertion_mode (); -} - -rl_vi_overstrike (count, key) - int count, key; -{ - int i; - - if (vi_doing_insert == 0) - { - vi_doing_insert = 1; - rl_begin_undo_group (); - } - - for (i = 0; i < count; i++) - { - vi_replace_count++; - rl_begin_undo_group (); - - if (rl_point < rl_end) - { - rl_delete (1); - rl_insert (1, key); - } - else - rl_insert (1, key); - - rl_end_undo_group (); - } -} - -rl_vi_overstrike_delete (count) - int count; -{ - int i, s; - - for (i = 0; i < count; i++) - { - if (vi_replace_count == 0) - { - ding (); - break; - } - s = rl_point; - - if (rl_do_undo ()) - vi_replace_count--; - - if (rl_point == s) - rl_backward (1); - } - - if (vi_replace_count == 0 && vi_doing_insert) - { - rl_end_undo_group (); - rl_do_undo (); - vi_doing_insert = 0; - } -} - -rl_vi_replace () -{ - int i; - - vi_replace_count = 0; - - vi_replace_map = rl_make_bare_keymap (); - - for (i = ' '; i < 127; i++) - vi_replace_map[i].function = rl_vi_overstrike; - - vi_replace_map[RUBOUT].function = rl_vi_overstrike_delete; - vi_replace_map[ESC].function = rl_vi_movement_mode; - vi_replace_map[RETURN].function = rl_newline; - vi_replace_map[NEWLINE].function = rl_newline; - keymap = vi_replace_map; -} |