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bash-3.1-rc2
bash/lib/readline/ddd
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Chet Ramey 6bf74e5aca commit bash-20051103 snapshot
2011-12-03 13:53:00 -05:00

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*** ../../../bash-3.0-patched/lib/readline/display.c 2004-09-08 11:07:51.000000000 -0400
--- display.c 2005-11-06 21:32:59.000000000 -0500
***************
*** 1,5 ****
/* display.c -- readline redisplay facility. */
! /* Copyright (C) 1987-2004 Free Software Foundation, Inc.
This file is part of the GNU Readline Library, a library for
--- 1,5 ----
/* display.c -- readline redisplay facility. */
! /* Copyright (C) 1987-2005 Free Software Foundation, Inc.
This file is part of the GNU Readline Library, a library for
***************
*** 119,122 ****
--- 119,123 ----
int _rl_suppress_redisplay = 0;
+ int _rl_want_redisplay = 0;
/* The stuff that gets printed out before the actual text of the line.
***************
*** 125,129 ****
--- 126,135 ----
/* Pseudo-global variables declared here. */
+
/* The visible cursor position. If you print some text, adjust this. */
+ /* NOTE: _rl_last_c_pos is used as a buffer index when not in a locale
+ supporting multibyte characters, and an absolute cursor position when
+ in such a locale. This is an artifact of the donated multibyte support.
+ Care must be taken when modifying its value. */
int _rl_last_c_pos = 0;
int _rl_last_v_pos = 0;
***************
*** 181,184 ****
--- 187,202 ----
static int prompt_physical_chars;
+ /* Variables to save and restore prompt and display information. */
+
+ /* These are getting numerous enough that it's time to create a struct. */
+
+ static char *saved_local_prompt;
+ static char *saved_local_prefix;
+ static int saved_last_invisible;
+ static int saved_visible_length;
+ static int saved_prefix_length;
+ static int saved_invis_chars_first_line;
+ static int saved_physical_chars;
+
/* Expand the prompt string S and return the number of visible
characters in *LP, if LP is not null. This is currently more-or-less
***************
*** 237,241 ****
{
ignoring = 0;
! last = r - ret - 1;
continue;
}
--- 255,260 ----
{
ignoring = 0;
! if (p[-1] != RL_PROMPT_START_IGNORE)
! last = r - ret - 1;
continue;
}
***************
*** 336,340 ****
local_prompt = local_prompt_prefix = (char *)0;
! prompt_last_invisible = prompt_visible_length = 0;
if (prompt == 0 || *prompt == 0)
--- 355,360 ----
local_prompt = local_prompt_prefix = (char *)0;
! prompt_last_invisible = prompt_invis_chars_first_line = 0;
! prompt_visible_length = prompt_physical_chars = 0;
if (prompt == 0 || *prompt == 0)
***************
*** 441,445 ****
rl_display_prompt = "";
! if (invisible_line == 0)
{
init_line_structures (0);
--- 461,465 ----
rl_display_prompt = "";
! if (invisible_line == 0 || vis_lbreaks == 0)
{
init_line_structures (0);
***************
*** 834,838 ****
if (_rl_horizontal_scroll_mode == 0 && _rl_term_up && *_rl_term_up)
{
! int nleft, pos, changed_screen_line;
if (!rl_display_fixed || forced_display)
--- 854,858 ----
if (_rl_horizontal_scroll_mode == 0 && _rl_term_up && *_rl_term_up)
{
! int nleft, pos, changed_screen_line, tx, fudge;
if (!rl_display_fixed || forced_display)
***************
*** 879,883 ****
(_rl_last_c_pos < visible_first_line_len))
{
! nleft = _rl_screenwidth + wrap_offset - _rl_last_c_pos;
if (nleft)
_rl_clear_to_eol (nleft);
--- 899,906 ----
(_rl_last_c_pos < visible_first_line_len))
{
! if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
! nleft = _rl_screenwidth - _rl_last_c_pos;
! else
! nleft = _rl_screenwidth + wrap_offset - _rl_last_c_pos;
if (nleft)
_rl_clear_to_eol (nleft);
***************
*** 915,919 ****
but the buffer position needs to be adjusted to account
for invisible characters. */
! if (cursor_linenum == 0 && wrap_offset)
_rl_last_c_pos += wrap_offset;
}
--- 938,942 ----
but the buffer position needs to be adjusted to account
for invisible characters. */
! if ((MB_CUR_MAX == 1 || rl_byte_oriented) && cursor_linenum == 0 && wrap_offset)
_rl_last_c_pos += wrap_offset;
}
***************
*** 948,951 ****
--- 971,980 ----
nleft = c_pos - pos;
+ /* NLEFT is now a number of characters in a buffer. When in a
+ multibyte locale, however, _rl_last_c_pos is an absolute cursor
+ position that doesn't take invisible characters in the prompt
+ into account. We use a fudge factor to compensate. */
+ fudge = (MB_CUR_MAX > 1 && rl_byte_oriented == 0) ? wrap_offset : 0;
+
/* Since _rl_backspace() doesn't know about invisible characters in the
prompt, and there's no good way to tell it, we compensate for
***************
*** 953,961 ****
if (wrap_offset && cursor_linenum == 0 && nleft < _rl_last_c_pos)
{
- _rl_backspace (_rl_last_c_pos - nleft);
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
! _rl_last_c_pos = _rl_col_width (&visible_line[pos], 0, nleft);
else
! _rl_last_c_pos = nleft;
}
--- 982,994 ----
if (wrap_offset && cursor_linenum == 0 && nleft < _rl_last_c_pos)
{
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
! tx = _rl_col_width (&visible_line[pos], 0, nleft);
else
! tx = nleft;
! if ((_rl_last_c_pos+fudge) != tx)
! {
! _rl_backspace (_rl_last_c_pos + fudge - tx); /* XXX */
! _rl_last_c_pos = tx;
! }
}
***************
*** 1118,1122 ****
emulators. In this calculation, TEMP is the physical screen
position of the cursor. */
! temp = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset);
if (temp == _rl_screenwidth && _rl_term_autowrap && !_rl_horizontal_scroll_mode
&& _rl_last_v_pos == current_line - 1)
--- 1151,1158 ----
emulators. In this calculation, TEMP is the physical screen
position of the cursor. */
! if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
! temp = _rl_last_c_pos;
! else
! temp = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset);
if (temp == _rl_screenwidth && _rl_term_autowrap && !_rl_horizontal_scroll_mode
&& _rl_last_v_pos == current_line - 1)
***************
*** 1324,1328 ****
{
_rl_move_vert (current_line);
! if (current_line == 0 && visible_wrap_offset)
_rl_last_c_pos += visible_wrap_offset;
}
--- 1360,1364 ----
{
_rl_move_vert (current_line);
! if ((MB_CUR_MAX == 1 || rl_byte_oriented) && current_line == 0 && visible_wrap_offset)
_rl_last_c_pos += visible_wrap_offset;
}
***************
*** 1415,1419 ****
_rl_last_c_pos += col_lendiff;
}
! else if (*ols == 0 && lendiff > 0)
{
/* At the end of a line the characters do not have to
--- 1451,1455 ----
_rl_last_c_pos += col_lendiff;
}
! else if ((MB_CUR_MAX == 1 || rl_byte_oriented != 0) && *ols == 0 && lendiff > 0)
{
/* At the end of a line the characters do not have to
***************
*** 1797,1803 ****
return ((ISPRINT (uc)) ? 1 : 2);
}
-
/* How to print things in the "echo-area". The prompt is treated as a
mini-modeline. */
#if defined (USE_VARARGS)
--- 1833,1839 ----
return ((ISPRINT (uc)) ? 1 : 2);
}
/* How to print things in the "echo-area". The prompt is treated as a
mini-modeline. */
+ static int msg_saved_prompt = 0;
#if defined (USE_VARARGS)
***************
*** 1830,1835 ****
--- 1866,1882 ----
va_end (args);
+ if (saved_local_prompt == 0)
+ {
+ rl_save_prompt ();
+ msg_saved_prompt = 1;
+ }
rl_display_prompt = msg_buf;
+ local_prompt = expand_prompt (msg_buf, &prompt_visible_length,
+ &prompt_last_invisible,
+ &prompt_invis_chars_first_line,
+ &prompt_physical_chars);
+ local_prompt_prefix = (char *)NULL;
(*rl_redisplay_function) ();
+
return 0;
}
***************
*** 1841,1846 ****
--- 1888,1905 ----
sprintf (msg_buf, format, arg1, arg2);
msg_buf[sizeof(msg_buf) - 1] = '\0'; /* overflow? */
+
rl_display_prompt = msg_buf;
+ if (saved_local_prompt == 0)
+ {
+ rl_save_prompt ();
+ msg_saved_prompt = 1;
+ }
+ local_prompt = expand_prompt (msg_buf, &prompt_visible_length,
+ &prompt_last_invisible,
+ &prompt_invis_chars_first_line,
+ &prompt_physical_chars);
+ local_prompt_prefix = (char *)NULL;
(*rl_redisplay_function) ();
+
return 0;
}
***************
*** 1852,1855 ****
--- 1911,1919 ----
{
rl_display_prompt = rl_prompt;
+ if (msg_saved_prompt)
+ {
+ rl_restore_prompt ();
+ msg_saved_prompt = 0;
+ }
(*rl_redisplay_function) ();
return 0;
***************
*** 1866,1878 ****
}
- /* These are getting numerous enough that it's time to create a struct. */
-
- static char *saved_local_prompt;
- static char *saved_local_prefix;
- static int saved_last_invisible;
- static int saved_visible_length;
- static int saved_invis_chars_first_line;
- static int saved_physical_chars;
-
void
rl_save_prompt ()
--- 1930,1933 ----
***************
*** 1880,1883 ****
--- 1935,1939 ----
saved_local_prompt = local_prompt;
saved_local_prefix = local_prompt_prefix;
+ saved_prefix_length = prompt_prefix_length;
saved_last_invisible = prompt_last_invisible;
saved_visible_length = prompt_visible_length;
***************
*** 1886,1890 ****
local_prompt = local_prompt_prefix = (char *)0;
! prompt_last_invisible = prompt_visible_length = 0;
prompt_invis_chars_first_line = prompt_physical_chars = 0;
}
--- 1942,1946 ----
local_prompt = local_prompt_prefix = (char *)0;
! prompt_last_invisible = prompt_visible_length = prompt_prefix_length = 0;
prompt_invis_chars_first_line = prompt_physical_chars = 0;
}
***************
*** 1898,1905 ****
--- 1954,1967 ----
local_prompt = saved_local_prompt;
local_prompt_prefix = saved_local_prefix;
+ prompt_prefix_length = saved_prefix_length;
prompt_last_invisible = saved_last_invisible;
prompt_visible_length = saved_visible_length;
prompt_invis_chars_first_line = saved_invis_chars_first_line;
prompt_physical_chars = saved_physical_chars;
+
+ /* can test saved_local_prompt to see if prompt info has been saved. */
+ saved_local_prompt = saved_local_prefix = (char *)0;
+ saved_last_invisible = saved_visible_length = saved_prefix_length = 0;
+ saved_invis_chars_first_line = saved_physical_chars = 0;
}
***************
*** 1935,1938 ****
--- 1997,2002 ----
}
+ prompt_physical_chars = saved_physical_chars + 1;
+
return pmt;
}
***************
*** 1995,1998 ****
--- 2059,2065 ----
int count, col;
{
+ #if defined (__MSDOS__) || defined (__MINGW32__)
+ _rl_output_some_chars (string, count);
+ #else
/* DEBUGGING */
if (MB_CUR_MAX == 1 || rl_byte_oriented)
***************
*** 2033,2036 ****
--- 2100,2104 ----
tputs (_rl_term_ei, 1, _rl_output_character_function);
}
+ #endif /* __MSDOS__ || __MINGW32__ */
}
***************
*** 2043,2046 ****
--- 2111,2115 ----
return;
+ #if !defined (__MSDOS__) && !defined (__MINGW32__)
if (_rl_term_DC && *_rl_term_DC)
{
***************
*** 2055,2058 ****
--- 2124,2128 ----
tputs (_rl_term_dc, 1, _rl_output_character_function);
}
+ #endif /* !__MSDOS__ && !__MINGW32__ */
}
***************
*** 2110,2125 ****
char *t;
{
! char *oldp, *oldl, *oldlprefix;
! int oldlen, oldlast, oldplen, oldninvis, oldphyschars;
- /* Geez, I should make this a struct. */
oldp = rl_display_prompt;
! oldl = local_prompt;
! oldlprefix = local_prompt_prefix;
! oldlen = prompt_visible_length;
! oldplen = prompt_prefix_length;
! oldlast = prompt_last_invisible;
! oldninvis = prompt_invis_chars_first_line;
! oldphyschars = prompt_physical_chars;
rl_display_prompt = t;
--- 2180,2187 ----
char *t;
{
! char *oldp;
oldp = rl_display_prompt;
! rl_save_prompt ();
rl_display_prompt = t;
***************
*** 2129,2142 ****
&prompt_physical_chars);
local_prompt_prefix = (char *)NULL;
rl_forced_update_display ();
rl_display_prompt = oldp;
! local_prompt = oldl;
! local_prompt_prefix = oldlprefix;
! prompt_visible_length = oldlen;
! prompt_prefix_length = oldplen;
! prompt_last_invisible = oldlast;
! prompt_invis_chars_first_line = oldninvis;
! prompt_physical_chars = oldphyschars;
}
--- 2191,2199 ----
&prompt_physical_chars);
local_prompt_prefix = (char *)NULL;
+
rl_forced_update_display ();
rl_display_prompt = oldp;
! rl_restore_prompt();
}
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