-/* Clear the current line. Numeric argument to C-l does this. */
-int
-rl_refresh_line ()
-{
- int curr_line, nleft;
-
- /* Find out whether or not there might be invisible characters in the
- editing buffer. */
- if (rl_display_prompt == rl_prompt)
- nleft = _rl_last_c_pos - screenwidth - rl_visible_prompt_length;
- else
- nleft = _rl_last_c_pos - screenwidth;
-
- if (nleft > 0)
- curr_line = 1 + nleft / screenwidth;
- else
- curr_line = 0;
-
- _rl_move_vert (curr_line);
- _rl_move_cursor_relative (0, the_line); /* XXX is this right */
-
-#if defined (__GO32__)
- {
- int row, col, width, row_start;
-
- ScreenGetCursor (&row, &col);
- width = ScreenCols ();
- row_start = ScreenPrimary + (row * width);
- memset (row_start + col, 0, (width - col) * 2);
- }
-#else /* !__GO32__ */
- _rl_clear_to_eol (0); /* arg of 0 means to not use spaces */
-#endif /* !__GO32__ */
-
- rl_forced_update_display ();
- rl_display_fixed = 1;
-
- return 0;
-}
-
-/* C-l typed to a line without quoting clears the screen, and then reprints
- the prompt and the current input line. Given a numeric arg, redraw only
- the current line. */
-int
-rl_clear_screen (count, key)
- int count, key;
-{
- if (rl_explicit_arg)
- {
- rl_refresh_line ();
- return 0;
- }
-
- _rl_clear_screen (); /* calls termcap function to clear screen */
- rl_forced_update_display ();
- rl_display_fixed = 1;
-
- return 0;
-}
-
-int
-rl_arrow_keys (count, c)
- int count, c;
-{
- int ch;
-
- ch = rl_read_key ();
-
- switch (_rl_to_upper (ch))
- {
- case 'A':
- rl_get_previous_history (count, ch);
- break;
-
- case 'B':
- rl_get_next_history (count, ch);
- break;
-
- case 'C':
- rl_forward (count, ch);
- break;
-
- case 'D':
- rl_backward (count, ch);
- break;
-
- default:
- ding ();
- }
- return 0;
-}
-
-\f
-/* **************************************************************** */
-/* */
-/* Text commands */
-/* */
-/* **************************************************************** */
-
-/* Insert the character C at the current location, moving point forward. */
-int
-rl_insert (count, c)
- int count, c;
-{
- register int i;
- char *string;
-
- if (count <= 0)
- return 0;
-
- /* If we can optimize, then do it. But don't let people crash
- readline because of extra large arguments. */
- if (count > 1 && count <= 1024)
- {
- string = xmalloc (1 + count);
-
- for (i = 0; i < count; i++)
- string[i] = c;
-
- string[i] = '\0';
- rl_insert_text (string);
- free (string);
-
- return 0;
- }
-
- if (count > 1024)
- {
- int decreaser;
- char str[1024+1];
-
- for (i = 0; i < 1024; i++)
- str[i] = c;
-
- while (count)
- {
- decreaser = (count > 1024 ? 1024 : count);
- str[decreaser] = '\0';
- rl_insert_text (str);
- count -= decreaser;
- }
-
- return 0;
- }
-
- /* We are inserting a single character.
- If there is pending input, then make a string of all of the
- pending characters that are bound to rl_insert, and insert
- them all. */
- if (_rl_any_typein ())
- _rl_insert_typein (c);
- else
- {
- /* Inserting a single character. */
- char str[2];
-
- str[1] = '\0';
- str[0] = c;
- rl_insert_text (str);
- }
- return 0;
-}
-
-/* Insert the next typed character verbatim. */
-int
-rl_quoted_insert (count, key)
- int count, key;
-{
- int c;
-
- c = rl_read_key ();
- return (rl_insert (count, c));
-}
-
-/* Insert a tab character. */
-int
-rl_tab_insert (count, key)
- int count, key;
-{
- return (rl_insert (count, '\t'));
-}
-
-/* What to do when a NEWLINE is pressed. We accept the whole line.
- KEY is the key that invoked this command. I guess it could have
- meaning in the future. */
-int
-rl_newline (count, key)
- int count, key;
-{
- rl_done = 1;
-
-#if defined (VI_MODE)
- if (rl_editing_mode == vi_mode)
- {
- _rl_vi_done_inserting ();
- _rl_vi_reset_last ();
- }
-#endif /* VI_MODE */
-
- if (readline_echoing_p)
- _rl_update_final ();
- return 0;
-}
-
-/* What to do for some uppercase characters, like meta characters,
- and some characters appearing in emacs_ctlx_keymap. This function
- is just a stub, you bind keys to it and the code in _rl_dispatch ()
- is special cased. */
-int
-rl_do_lowercase_version (ignore1, ignore2)
- int ignore1, ignore2;
-{
- return 0;
-}
-
-/* Rubout the character behind point. */
-int
-rl_rubout (count, key)
- int count, key;
-{
- if (count < 0)
- {
- rl_delete (-count, key);
- return 0;
- }
-
- if (!rl_point)
- {
- ding ();
- return -1;
- }
-
- if (count > 1 || rl_explicit_arg)
- {
- int orig_point = rl_point;
- rl_backward (count, key);
- rl_kill_text (orig_point, rl_point);
- }
- else
- {
- int c = the_line[--rl_point];
- rl_delete_text (rl_point, rl_point + 1);
-
- if (rl_point == rl_end && isprint (c) && _rl_last_c_pos)
- {
- int l;
- l = rl_character_len (c, rl_point);
- _rl_erase_at_end_of_line (l);
- }
- }
- return 0;
-}
-
-/* Delete the character under the cursor. Given a numeric argument,
- kill that many characters instead. */
-int
-rl_delete (count, key)
- int count, key;
-{
- if (count < 0)
- return (rl_rubout (-count, key));
-
- if (rl_point == rl_end)
- {
- ding ();
- return -1;
- }
-
- if (count > 1 || rl_explicit_arg)
- {
- int orig_point = rl_point;
- rl_forward (count, key);
- rl_kill_text (orig_point, rl_point);
- rl_point = orig_point;
- return 0;
- }
- else
- return (rl_delete_text (rl_point, rl_point + 1));
-
-}
-
-/* Delete all spaces and tabs around point. */
-int
-rl_delete_horizontal_space (count, ignore)
- int count, ignore;
-{
- int start = rl_point;
-
- while (rl_point && whitespace (the_line[rl_point - 1]))
- rl_point--;
-
- start = rl_point;
-
- while (rl_point < rl_end && whitespace (the_line[rl_point]))
- rl_point++;
-
- if (start != rl_point)
- {
- rl_delete_text (start, rl_point);
- rl_point = start;
- }
- return 0;
-}
-
-#ifndef RL_COMMENT_BEGIN_DEFAULT
-#define RL_COMMENT_BEGIN_DEFAULT "#"
-#endif
-
-/* Turn the current line into a comment in shell history.
- A K*rn shell style function. */
-int
-rl_insert_comment (count, key)
- int count, key;
-{
- rl_beg_of_line (1, key);
- rl_insert_text (_rl_comment_begin ? _rl_comment_begin
- : RL_COMMENT_BEGIN_DEFAULT);
- (*rl_redisplay_function) ();
- rl_newline (1, '\n');
- return (0);
-}
-
-/* **************************************************************** */
-/* */
-/* Changing Case */
-/* */
-/* **************************************************************** */
-
-/* The three kinds of things that we know how to do. */
-#define UpCase 1
-#define DownCase 2
-#define CapCase 3
-
-static int rl_change_case ();
-
-/* Uppercase the word at point. */
-int
-rl_upcase_word (count, key)
- int count, key;
-{
- return (rl_change_case (count, UpCase));
-}
-
-/* Lowercase the word at point. */
-int
-rl_downcase_word (count, key)
- int count, key;
-{
- return (rl_change_case (count, DownCase));
-}
-
-/* Upcase the first letter, downcase the rest. */
-int
-rl_capitalize_word (count, key)
- int count, key;
-{
- return (rl_change_case (count, CapCase));
-}
-
-/* The meaty function.
- Change the case of COUNT words, performing OP on them.
- OP is one of UpCase, DownCase, or CapCase.
- If a negative argument is given, leave point where it started,
- otherwise, leave it where it moves to. */
-static int
-rl_change_case (count, op)
- int count, op;
-{
- register int start, end;
- int inword, c;
-
- start = rl_point;
- rl_forward_word (count, 0);
- end = rl_point;
-
- if (count < 0)
- SWAP (start, end);
-
- /* We are going to modify some text, so let's prepare to undo it. */
- rl_modifying (start, end);
-
- for (inword = 0; start < end; start++)
- {
- c = the_line[start];
- switch (op)
- {
- case UpCase:
- the_line[start] = _rl_to_upper (c);
- break;
-
- case DownCase:
- the_line[start] = _rl_to_lower (c);
- break;
-
- case CapCase:
- the_line[start] = (inword == 0) ? _rl_to_upper (c) : _rl_to_lower (c);
- inword = alphabetic (the_line[start]);
- break;
-
- default:
- ding ();
- return -1;
- }
- }
- rl_point = end;
- return 0;
-}
-
-/* **************************************************************** */
-/* */
-/* Transposition */
-/* */
-/* **************************************************************** */
-
-/* Transpose the words at point. */
-int
-rl_transpose_words (count, key)
- int count, key;
-{
- char *word1, *word2;
- int w1_beg, w1_end, w2_beg, w2_end;
- int orig_point = rl_point;
-
- if (!count)
- return 0;
-
- /* Find the two words. */
- rl_forward_word (count, key);
- w2_end = rl_point;
- rl_backward_word (1, key);
- w2_beg = rl_point;
- rl_backward_word (count, key);
- w1_beg = rl_point;
- rl_forward_word (1, key);
- w1_end = rl_point;
-
- /* Do some check to make sure that there really are two words. */
- if ((w1_beg == w2_beg) || (w2_beg < w1_end))
- {
- ding ();
- rl_point = orig_point;
- return -1;
- }
-
- /* Get the text of the words. */
- word1 = rl_copy_text (w1_beg, w1_end);
- word2 = rl_copy_text (w2_beg, w2_end);
-
- /* We are about to do many insertions and deletions. Remember them
- as one operation. */
- rl_begin_undo_group ();
-
- /* Do the stuff at word2 first, so that we don't have to worry
- about word1 moving. */
- rl_point = w2_beg;
- rl_delete_text (w2_beg, w2_end);
- rl_insert_text (word1);
-
- rl_point = w1_beg;
- rl_delete_text (w1_beg, w1_end);
- rl_insert_text (word2);
-
- /* This is exactly correct since the text before this point has not
- changed in length. */
- rl_point = w2_end;
-
- /* I think that does it. */
- rl_end_undo_group ();
- free (word1);
- free (word2);
-
- return 0;
-}
-
-/* Transpose the characters at point. If point is at the end of the line,
- then transpose the characters before point. */
-int
-rl_transpose_chars (count, key)
- int count, key;
-{
- char dummy[2];
-
- if (!count)
- return 0;
-
- if (!rl_point || rl_end < 2)
- {
- ding ();
- return -1;
- }
-
- rl_begin_undo_group ();
-
- if (rl_point == rl_end)
- {
- --rl_point;
- count = 1;
- }
- rl_point--;
-
- dummy[0] = the_line[rl_point];
- dummy[1] = '\0';
-
- rl_delete_text (rl_point, rl_point + 1);
-
- rl_point += count;
- _rl_fix_point (0);
- rl_insert_text (dummy);
-
- rl_end_undo_group ();
- return 0;
-}
-
-/* **************************************************************** */
-/* */
-/* Character Searching */
-/* */
-/* **************************************************************** */
-
-int
-_rl_char_search_internal (count, dir, schar)
- int count, dir, schar;
-{
- int pos, inc;
-
- pos = rl_point;
- inc = (dir < 0) ? -1 : 1;
- while (count)
- {
- if ((dir < 0 && pos <= 0) || (dir > 0 && pos >= rl_end))
- {
- ding ();
- return -1;
- }
-
- pos += inc;
- do
- {
- if (rl_line_buffer[pos] == schar)
- {
- count--;
- if (dir < 0)
- rl_point = (dir == BTO) ? pos + 1 : pos;
- else
- rl_point = (dir == FTO) ? pos - 1 : pos;
- break;
- }
- }
- while ((dir < 0) ? pos-- : ++pos < rl_end);
- }
projects / platform / upstream / bash.git / blobdiff