/* text.c -- text handling commands for readline. */
-/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
- This file is part of the GNU Readline Library, a library for
- reading lines of text with interactive input and history editing.
+ This file is part of the GNU Readline Library (Readline), a library
+ for reading lines of text with interactive input and history editing.
- The GNU Readline Library 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 2, or
+ 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.
- The GNU Readline Library 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
+ 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.
- The GNU General Public License is often shipped with GNU software, and
- is generally kept in a file called COPYING or LICENSE. If you do not
- have a copy of the license, write to the Free Software Foundation,
- 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+ 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
#if defined (HAVE_CONFIG_H)
static int rl_change_case PARAMS((int, int));
static int _rl_char_search PARAMS((int, int, int));
+#if defined (READLINE_CALLBACKS)
+static int _rl_insert_next_callback PARAMS((_rl_callback_generic_arg *));
+static int _rl_char_search_callback PARAMS((_rl_callback_generic_arg *));
+#endif
+
/* **************************************************************** */
/* */
/* Insert and Delete */
}
#undef _RL_FIX_POINT
+/* Replace the contents of the line buffer between START and END with
+ TEXT. The operation is undoable. To replace the entire line in an
+ undoable mode, use _rl_replace_text(text, 0, rl_end); */
int
_rl_replace_text (text, start, end)
const char *text;
{
int end = rl_point + count;
#if defined (VI_MODE)
- int lend = rl_end > 0 ? rl_end - (rl_editing_mode == vi_mode) : rl_end;
+ int lend = rl_end > 0 ? rl_end - (VI_COMMAND_MODE()) : rl_end;
#else
int lend = rl_end;
#endif
if (count > 0)
{
+ if (rl_point == rl_end && EMACS_MODE())
+ {
+ rl_ding ();
+ return 0;
+ }
+
point = _rl_find_next_mbchar (rl_line_buffer, rl_point, count, MB_FIND_NONZERO);
#if defined (VI_MODE)
- if (rl_end <= point && rl_editing_mode == vi_mode)
+ if (point >= rl_end && VI_COMMAND_MODE())
point = _rl_find_prev_mbchar (rl_line_buffer, rl_end, MB_FIND_NONZERO);
#endif
return 0;
}
-/* XXX - these might need changes for multibyte characters */
-/* Move forward a word. We do what Emacs does. */
+/* Move forward a word. We do what Emacs does. Handles multibyte chars. */
int
rl_forward_word (count, key)
int count, key;
/* If we are not in a word, move forward until we are in one.
Then, move forward until we hit a non-alphabetic character. */
- c = rl_line_buffer[rl_point];
- if (rl_alphabetic (c) == 0)
+ c = _rl_char_value (rl_line_buffer, rl_point);
+
+ if (_rl_walphabetic (c) == 0)
{
- while (++rl_point < rl_end)
+ rl_point = MB_NEXTCHAR (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
+ while (rl_point < rl_end)
{
- c = rl_line_buffer[rl_point];
- if (rl_alphabetic (c))
+ c = _rl_char_value (rl_line_buffer, rl_point);
+ if (_rl_walphabetic (c))
break;
+ rl_point = MB_NEXTCHAR (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
}
}
if (rl_point == rl_end)
return 0;
- while (++rl_point < rl_end)
+ rl_point = MB_NEXTCHAR (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
+ while (rl_point < rl_end)
{
- c = rl_line_buffer[rl_point];
- if (rl_alphabetic (c) == 0)
+ c = _rl_char_value (rl_line_buffer, rl_point);
+ if (_rl_walphabetic (c) == 0)
break;
+ rl_point = MB_NEXTCHAR (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
}
+
--count;
}
return 0;
}
-/* Move backward a word. We do what Emacs does. */
+/* Move backward a word. We do what Emacs does. Handles multibyte chars. */
int
rl_backward_word (count, key)
int count, key;
{
- int c;
+ int c, p;
if (count < 0)
return (rl_forward_word (-count, key));
while (count)
{
- if (!rl_point)
+ if (rl_point == 0)
return 0;
/* Like rl_forward_word (), except that we look at the characters
just before point. */
- c = rl_line_buffer[rl_point - 1];
- if (rl_alphabetic (c) == 0)
+ p = MB_PREVCHAR (rl_line_buffer, rl_point, MB_FIND_NONZERO);
+ c = _rl_char_value (rl_line_buffer, p);
+
+ if (_rl_walphabetic (c) == 0)
{
- while (--rl_point)
+ rl_point = p;
+ while (rl_point > 0)
{
- c = rl_line_buffer[rl_point - 1];
- if (rl_alphabetic (c))
+ p = MB_PREVCHAR (rl_line_buffer, rl_point, MB_FIND_NONZERO);
+ c = _rl_char_value (rl_line_buffer, p);
+ if (_rl_walphabetic (c))
break;
+ rl_point = p;
}
}
while (rl_point)
{
- c = rl_line_buffer[rl_point - 1];
- if (rl_alphabetic (c) == 0)
+ p = MB_PREVCHAR (rl_line_buffer, rl_point, MB_FIND_NONZERO);
+ c = _rl_char_value (rl_line_buffer, p);
+ if (_rl_walphabetic (c) == 0)
break;
else
- --rl_point;
+ rl_point = p;
}
--count;
return 0;
}
-#if defined (HANDLE_MULTIBYTE)
if (MB_CUR_MAX == 1 || rl_byte_oriented)
{
-#endif
/* 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
str[0] = c;
rl_insert_text (str);
}
-#if defined (HANDLE_MULTIBYTE)
}
+#if defined (HANDLE_MULTIBYTE)
else
{
rl_insert_text (incoming);
k = _rl_read_mbstring (c, mbkey, MB_LEN_MAX);
#endif
+ rl_begin_undo_group ();
+
for (i = 0; i < count; i++)
{
- rl_begin_undo_group ();
-
- if (rl_point < rl_end)
- rl_delete (1, c);
-
#if defined (HANDLE_MULTIBYTE)
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
rl_insert_text (mbkey);
#endif
_rl_insert_char (1, c);
- rl_end_undo_group ();
+ if (rl_point < rl_end)
+ rl_delete (1, c);
}
+ rl_end_undo_group ();
+
return 0;
}
}
/* Insert the next typed character verbatim. */
-int
-rl_quoted_insert (count, key)
- int count, key;
+static int
+_rl_insert_next (count)
+ int count;
{
int c;
-#if defined (HANDLE_SIGNALS)
- _rl_disable_tty_signals ();
-#endif
-
RL_SETSTATE(RL_STATE_MOREINPUT);
c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ return -1;
+
#if defined (HANDLE_SIGNALS)
- _rl_restore_tty_signals ();
+ if (RL_ISSTATE (RL_STATE_CALLBACK) == 0)
+ _rl_restore_tty_signals ();
#endif
return (_rl_insert_char (count, c));
}
+#if defined (READLINE_CALLBACKS)
+static int
+_rl_insert_next_callback (data)
+ _rl_callback_generic_arg *data;
+{
+ int count;
+
+ count = data->count;
+
+ /* Deregister function, let rl_callback_read_char deallocate data */
+ _rl_callback_func = 0;
+ _rl_want_redisplay = 1;
+
+ return _rl_insert_next (count);
+}
+#endif
+
+int
+rl_quoted_insert (count, key)
+ int count, key;
+{
+ /* Let's see...should the callback interface futz with signal handling? */
+#if defined (HANDLE_SIGNALS)
+ if (RL_ISSTATE (RL_STATE_CALLBACK) == 0)
+ _rl_disable_tty_signals ();
+#endif
+
+#if defined (READLINE_CALLBACKS)
+ if (RL_ISSTATE (RL_STATE_CALLBACK))
+ {
+ _rl_callback_data = _rl_callback_data_alloc (count);
+ _rl_callback_func = _rl_insert_next_callback;
+ return (0);
+ }
+#endif
+
+ return _rl_insert_next (count);
+}
+
/* Insert a tab character. */
int
rl_tab_insert (count, key)
if (rl_editing_mode == vi_mode)
{
_rl_vi_done_inserting ();
- _rl_vi_reset_last ();
+ if (_rl_vi_textmod_command (_rl_vi_last_command) == 0) /* XXX */
+ _rl_vi_reset_last ();
}
#endif /* VI_MODE */
if (rl_erase_empty_line && rl_point == 0 && rl_end == 0)
return 0;
- if (readline_echoing_p)
+ if (_rl_echoing_p)
_rl_update_final ();
return 0;
}
rl_delete_text (opoint, rl_point);
/* Emacs puts point at the beginning of the sequence of spaces. */
- opoint = rl_point;
- _rl_insert_char (l, ' ');
- rl_point = opoint;
+ if (rl_point < rl_end)
+ {
+ opoint = rl_point;
+ _rl_insert_char (l, ' ');
+ rl_point = opoint;
+ }
rl_end_undo_group ();
return -1;
}
+ orig_point = rl_point;
if (count > 1 || rl_explicit_arg)
{
- orig_point = rl_point;
-#if defined (HANDLE_MULTIBYTE)
- if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
- rl_backward_char (count, key);
- else
-#endif
- rl_backward_byte (count, key);
+ rl_backward_char (count, key);
rl_kill_text (orig_point, rl_point);
}
- else
+ else if (MB_CUR_MAX == 1 || rl_byte_oriented)
{
-#if defined (HANDLE_MULTIBYTE)
- if (MB_CUR_MAX == 1 || rl_byte_oriented)
- {
-#endif
- c = rl_line_buffer[--rl_point];
- rl_delete_text (rl_point, rl_point + 1);
-#if defined (HANDLE_MULTIBYTE)
- }
- else
- {
- int orig_point;
-
- orig_point = rl_point;
- rl_point = _rl_find_prev_mbchar (rl_line_buffer, rl_point, MB_FIND_NONZERO);
- c = rl_line_buffer[rl_point];
- rl_delete_text (rl_point, orig_point);
- }
-#endif /* HANDLE_MULTIBYTE */
-
- /* I don't think that the hack for end of line is needed for
- multibyte chars. */
-#if defined (HANDLE_MULTIBYTE)
- if (MB_CUR_MAX == 1 || rl_byte_oriented)
-#endif
+ c = rl_line_buffer[--rl_point];
+ rl_delete_text (rl_point, orig_point);
+ /* The erase-at-end-of-line hack is of questionable merit now. */
if (rl_point == rl_end && ISPRINT (c) && _rl_last_c_pos)
{
int l;
_rl_erase_at_end_of_line (l);
}
}
+ else
+ {
+ rl_point = _rl_find_prev_mbchar (rl_line_buffer, rl_point, MB_FIND_NONZERO);
+ rl_delete_text (rl_point, orig_point);
+ }
return 0;
}
rl_delete (count, key)
int count, key;
{
- int r;
+ int xpoint;
if (count < 0)
return (_rl_rubout_char (-count, key));
if (count > 1 || rl_explicit_arg)
{
- int orig_point = rl_point;
-#if defined (HANDLE_MULTIBYTE)
+ xpoint = rl_point;
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
rl_forward_char (count, key);
else
-#endif
rl_forward_byte (count, key);
- r = rl_kill_text (orig_point, rl_point);
- rl_point = orig_point;
- return r;
+ rl_kill_text (xpoint, rl_point);
+ rl_point = xpoint;
}
else
{
- int new_point;
- if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
- new_point = _rl_find_next_mbchar (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
- else
- new_point = rl_point + 1;
-
- return (rl_delete_text (rl_point, new_point));
+ xpoint = MB_NEXTCHAR (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
+ rl_delete_text (rl_point, xpoint);
}
+ return 0;
}
/* Delete the character under the cursor, unless the insertion
rl_delete_text (start, rl_point);
rl_point = start;
}
+
+ if (rl_point < 0)
+ rl_point = 0;
+
return 0;
}
rl_change_case (count, op)
int count, op;
{
- register int start, end;
- int inword, c;
+ int start, next, end;
+ int inword, c, nc, nop;
+#if defined (HANDLE_MULTIBYTE)
+ wchar_t wc, nwc;
+ char mb[MB_LEN_MAX+1];
+ int mlen;
+ mbstate_t mps;
+#endif
start = rl_point;
rl_forward_word (count, 0);
end = rl_point;
+ if (op != UpCase && op != DownCase && op != CapCase)
+ {
+ rl_ding ();
+ return -1;
+ }
+
if (count < 0)
SWAP (start, end);
+#if defined (HANDLE_MULTIBYTE)
+ memset (&mps, 0, sizeof (mbstate_t));
+#endif
+
/* We are going to modify some text, so let's prepare to undo it. */
rl_modifying (start, end);
- for (inword = 0; start < end; start++)
+ inword = 0;
+ while (start < end)
{
- c = rl_line_buffer[start];
- switch (op)
- {
- case UpCase:
- rl_line_buffer[start] = _rl_to_upper (c);
- break;
-
- case DownCase:
- rl_line_buffer[start] = _rl_to_lower (c);
- break;
+ c = _rl_char_value (rl_line_buffer, start);
+ /* This assumes that the upper and lower case versions are the same width. */
+ next = MB_NEXTCHAR (rl_line_buffer, start, 1, MB_FIND_NONZERO);
- case CapCase:
- rl_line_buffer[start] = (inword == 0) ? _rl_to_upper (c) : _rl_to_lower (c);
- inword = rl_alphabetic (rl_line_buffer[start]);
- break;
+ if (_rl_walphabetic (c) == 0)
+ {
+ inword = 0;
+ start = next;
+ continue;
+ }
- default:
- rl_ding ();
- return -1;
+ if (op == CapCase)
+ {
+ nop = inword ? DownCase : UpCase;
+ inword = 1;
}
+ else
+ nop = op;
+ if (MB_CUR_MAX == 1 || rl_byte_oriented || isascii (c))
+ {
+ nc = (nop == UpCase) ? _rl_to_upper (c) : _rl_to_lower (c);
+ rl_line_buffer[start] = nc;
+ }
+#if defined (HANDLE_MULTIBYTE)
+ else
+ {
+ mbrtowc (&wc, rl_line_buffer + start, end - start, &mps);
+ nwc = (nop == UpCase) ? _rl_to_wupper (wc) : _rl_to_wlower (wc);
+ if (nwc != wc) /* just skip unchanged characters */
+ {
+ mlen = wcrtomb (mb, nwc, &mps);
+ if (mlen > 0)
+ mb[mlen] = '\0';
+ /* Assume the same width */
+ strncpy (rl_line_buffer + start, mb, mlen);
+ }
+ }
+#endif
+
+ start = next;
}
+
rl_point = end;
return 0;
}
{
#if defined (HANDLE_MULTIBYTE)
char *dummy;
- int i, prev_point;
+ int i;
#else
char dummy[2];
#endif
- int char_length;
+ int char_length, prev_point;
if (count == 0)
return 0;
if (rl_point == rl_end)
{
- 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;
+ rl_point = MB_PREVCHAR (rl_line_buffer, rl_point, MB_FIND_NONZERO);
count = 1;
}
-#if defined (HANDLE_MULTIBYTE)
prev_point = rl_point;
- if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
- rl_point = _rl_find_prev_mbchar (rl_line_buffer, rl_point, MB_FIND_NONZERO);
- else
-#endif
- rl_point--;
+ rl_point = MB_PREVCHAR (rl_line_buffer, rl_point, MB_FIND_NONZERO);
#if defined (HANDLE_MULTIBYTE)
char_length = prev_point - rl_point;
mb_len = _rl_read_mbchar (mbchar, MB_LEN_MAX);
+ if (mb_len <= 0)
+ return -1;
+
if (count < 0)
return (_rl_char_search_internal (-count, bdir, mbchar, mb_len));
else
c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ return -1;
+
if (count < 0)
return (_rl_char_search_internal (-count, bdir, c));
else
}
#endif /* !HANDLE_MULTIBYTE */
+#if defined (READLINE_CALLBACKS)
+static int
+_rl_char_search_callback (data)
+ _rl_callback_generic_arg *data;
+{
+ _rl_callback_func = 0;
+ _rl_want_redisplay = 1;
+
+ return (_rl_char_search (data->count, data->i1, data->i2));
+}
+#endif
+
int
rl_char_search (count, key)
int count, key;
{
+#if defined (READLINE_CALLBACKS)
+ if (RL_ISSTATE (RL_STATE_CALLBACK))
+ {
+ _rl_callback_data = _rl_callback_data_alloc (count);
+ _rl_callback_data->i1 = FFIND;
+ _rl_callback_data->i2 = BFIND;
+ _rl_callback_func = _rl_char_search_callback;
+ return (0);
+ }
+#endif
+
return (_rl_char_search (count, FFIND, BFIND));
}
rl_backward_char_search (count, key)
int count, key;
{
+#if defined (READLINE_CALLBACKS)
+ if (RL_ISSTATE (RL_STATE_CALLBACK))
+ {
+ _rl_callback_data = _rl_callback_data_alloc (count);
+ _rl_callback_data->i1 = BFIND;
+ _rl_callback_data->i2 = FFIND;
+ _rl_callback_func = _rl_char_search_callback;
+ return (0);
+ }
+#endif
+
return (_rl_char_search (count, BFIND, FFIND));
}
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