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-rw-r--r--readline/terminal.c370
1 files changed, 227 insertions, 143 deletions
diff --git a/readline/terminal.c b/readline/terminal.c
index 02757fe..ea3270e 100644
--- a/readline/terminal.c
+++ b/readline/terminal.c
@@ -68,6 +68,10 @@
#include "rlprivate.h"
#include "rlshell.h"
+#include "xmalloc.h"
+
+#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
+#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
/* **************************************************************** */
/* */
@@ -93,27 +97,36 @@ char PC, *BC, *UP;
#endif /* __linux__ */
/* Some strings to control terminal actions. These are output by tputs (). */
-char *term_goto, *term_clreol, *term_cr, *term_clrpag, *term_backspace;
-char *term_pc;
+char *_rl_term_clreol;
+char *_rl_term_clrpag;
+char *_rl_term_cr;
+char *_rl_term_backspace;
+char *_rl_term_goto;
+char *_rl_term_pc;
/* Non-zero if we determine that the terminal can do character insertion. */
-int terminal_can_insert = 0;
+int _rl_terminal_can_insert = 0;
/* How to insert characters. */
-char *term_im, *term_ei, *term_ic, *term_ip, *term_IC;
+char *_rl_term_im;
+char *_rl_term_ei;
+char *_rl_term_ic;
+char *_rl_term_ip;
+char *_rl_term_IC;
/* How to delete characters. */
-char *term_dc, *term_DC;
+char *_rl_term_dc;
+char *_rl_term_DC;
#if defined (HACK_TERMCAP_MOTION)
-char *term_forward_char;
+char *_rl_term_forward_char;
#endif /* HACK_TERMCAP_MOTION */
/* How to go up a line. */
-char *term_up;
+char *_rl_term_up;
-/* A visible bell, if the terminal can be made to flash the screen. */
-static char *visible_bell;
+/* A visible bell; char if the terminal can be made to flash the screen. */
+static char *_rl_visible_bell;
/* Non-zero means the terminal can auto-wrap lines. */
int _rl_term_autowrap;
@@ -122,20 +135,36 @@ int _rl_term_autowrap;
static int term_has_meta;
/* The sequences to write to turn on and off the meta key, if this
- terminal has one. */
-static char *term_mm, *term_mo;
+ terminal has one. */
+static char *_rl_term_mm;
+static char *_rl_term_mo;
/* The key sequences output by the arrow keys, if this terminal has any. */
-static char *term_ku, *term_kd, *term_kr, *term_kl;
+static char *_rl_term_ku;
+static char *_rl_term_kd;
+static char *_rl_term_kr;
+static char *_rl_term_kl;
/* How to initialize and reset the arrow keys, if this terminal has any. */
-static char *term_ks, *term_ke;
+static char *_rl_term_ks;
+static char *_rl_term_ke;
/* The key sequences sent by the Home and End keys, if any. */
-static char *term_kh, *term_kH;
+static char *_rl_term_kh;
+static char *_rl_term_kH;
+static char *_rl_term_at7; /* @7 */
+
+/* Insert key */
+static char *_rl_term_kI;
+
+/* Cursor control */
+static char *_rl_term_vs; /* very visible */
+static char *_rl_term_ve; /* normal */
+
+static void bind_termcap_arrow_keys PARAMS((Keymap));
/* Variables that hold the screen dimensions, used by the display code. */
-int screenwidth, screenheight, screenchars;
+int _rl_screenwidth, _rl_screenheight, _rl_screenchars;
/* Non-zero means the user wants to enable the keypad. */
int _rl_enable_keypad;
@@ -175,90 +204,107 @@ _rl_get_screen_size (tty, ignore_env)
#if defined (TIOCGWINSZ)
if (ioctl (tty, TIOCGWINSZ, &window_size) == 0)
{
- screenwidth = (int) window_size.ws_col;
- screenheight = (int) window_size.ws_row;
+ _rl_screenwidth = (int) window_size.ws_col;
+ _rl_screenheight = (int) window_size.ws_row;
}
#endif /* TIOCGWINSZ */
#if defined (__EMX__)
- _emx_get_screensize (&screenwidth, &screenheight);
+ _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight);
#endif
/* Environment variable COLUMNS overrides setting of "co" if IGNORE_ENV
is unset. */
- if (screenwidth <= 0)
+ if (_rl_screenwidth <= 0)
{
- if (ignore_env == 0 && (ss = get_env_value ("COLUMNS")))
- screenwidth = atoi (ss);
+ if (ignore_env == 0 && (ss = sh_get_env_value ("COLUMNS")))
+ _rl_screenwidth = atoi (ss);
-#if defined (__DJGPP__)
- if (screenwidth <= 0)
- screenwidth = ScreenCols ();
-#else
- if (screenwidth <= 0 && term_string_buffer)
- screenwidth = tgetnum ("co");
+#if !defined (__DJGPP__)
+ if (_rl_screenwidth <= 0 && term_string_buffer)
+ _rl_screenwidth = tgetnum ("co");
#endif
}
/* Environment variable LINES overrides setting of "li" if IGNORE_ENV
is unset. */
- if (screenheight <= 0)
+ if (_rl_screenheight <= 0)
{
- if (ignore_env == 0 && (ss = get_env_value ("LINES")))
- screenheight = atoi (ss);
+ if (ignore_env == 0 && (ss = sh_get_env_value ("LINES")))
+ _rl_screenheight = atoi (ss);
-#if defined (__DJGPP__)
- if (screenheight <= 0)
- screenheight = ScreenRows ();
-#else
- if (screenheight <= 0 && term_string_buffer)
- screenheight = tgetnum ("li");
+#if !defined (__DJGPP__)
+ if (_rl_screenheight <= 0 && term_string_buffer)
+ _rl_screenheight = tgetnum ("li");
#endif
}
/* If all else fails, default to 80x24 terminal. */
- if (screenwidth <= 1)
- screenwidth = 80;
+ if (_rl_screenwidth <= 1)
+ _rl_screenwidth = 80;
- if (screenheight <= 0)
- screenheight = 24;
+ if (_rl_screenheight <= 0)
+ _rl_screenheight = 24;
/* If we're being compiled as part of bash, set the environment
variables $LINES and $COLUMNS to new values. Otherwise, just
do a pair of putenv () or setenv () calls. */
- set_lines_and_columns (screenheight, screenwidth);
+ sh_set_lines_and_columns (_rl_screenheight, _rl_screenwidth);
if (_rl_term_autowrap == 0)
- screenwidth--;
+ _rl_screenwidth--;
- screenchars = screenwidth * screenheight;
+ _rl_screenchars = _rl_screenwidth * _rl_screenheight;
}
void
_rl_set_screen_size (rows, cols)
int rows, cols;
{
- screenheight = rows;
- screenwidth = cols;
+ if (rows == 0 || cols == 0)
+ return;
+
+ _rl_screenheight = rows;
+ _rl_screenwidth = cols;
if (_rl_term_autowrap == 0)
- screenwidth--;
+ _rl_screenwidth--;
- screenchars = screenwidth * screenheight;
+ _rl_screenchars = _rl_screenwidth * _rl_screenheight;
}
void
+rl_set_screen_size (rows, cols)
+ int rows, cols;
+{
+ _rl_set_screen_size (rows, cols);
+}
+
+void
+rl_get_screen_size (rows, cols)
+ int *rows, *cols;
+{
+ if (rows)
+ *rows = _rl_screenheight;
+ if (cols)
+ *cols = _rl_screenwidth;
+}
+
+void
rl_resize_terminal ()
{
if (readline_echoing_p)
{
_rl_get_screen_size (fileno (rl_instream), 1);
- _rl_redisplay_after_sigwinch ();
+ if (CUSTOM_REDISPLAY_FUNC ())
+ rl_forced_update_display ();
+ else
+ _rl_redisplay_after_sigwinch ();
}
}
struct _tc_string {
- char *tc_var;
+ const char *tc_var;
char **tc_value;
};
@@ -266,32 +312,36 @@ struct _tc_string {
search algorithm to something smarter. */
static struct _tc_string tc_strings[] =
{
- { "DC", &term_DC },
- { "IC", &term_IC },
- { "ce", &term_clreol },
- { "cl", &term_clrpag },
- { "cr", &term_cr },
- { "dc", &term_dc },
- { "ei", &term_ei },
- { "ic", &term_ic },
- { "im", &term_im },
- { "kd", &term_kd },
- { "kh", &term_kh }, /* home */
- { "kH", &term_kH }, /* end */
- { "kl", &term_kl },
- { "kr", &term_kr },
- { "ku", &term_ku },
- { "ks", &term_ks },
- { "ke", &term_ke },
- { "le", &term_backspace },
- { "mm", &term_mm },
- { "mo", &term_mo },
+ { "@7", &_rl_term_at7 },
+ { "DC", &_rl_term_DC },
+ { "IC", &_rl_term_IC },
+ { "ce", &_rl_term_clreol },
+ { "cl", &_rl_term_clrpag },
+ { "cr", &_rl_term_cr },
+ { "dc", &_rl_term_dc },
+ { "ei", &_rl_term_ei },
+ { "ic", &_rl_term_ic },
+ { "im", &_rl_term_im },
+ { "kH", &_rl_term_kH }, /* home down ?? */
+ { "kI", &_rl_term_kI }, /* insert */
+ { "kd", &_rl_term_kd },
+ { "ke", &_rl_term_ke }, /* end keypad mode */
+ { "kh", &_rl_term_kh }, /* home */
+ { "kl", &_rl_term_kl },
+ { "kr", &_rl_term_kr },
+ { "ks", &_rl_term_ks }, /* start keypad mode */
+ { "ku", &_rl_term_ku },
+ { "le", &_rl_term_backspace },
+ { "mm", &_rl_term_mm },
+ { "mo", &_rl_term_mo },
#if defined (HACK_TERMCAP_MOTION)
- { "nd", &term_forward_char },
+ { "nd", &_rl_term_forward_char },
#endif
- { "pc", &term_pc },
- { "up", &term_up },
- { "vb", &visible_bell },
+ { "pc", &_rl_term_pc },
+ { "up", &_rl_term_up },
+ { "vb", &_rl_visible_bell },
+ { "vs", &_rl_term_vs },
+ { "ve", &_rl_term_ve },
};
#define NUM_TC_STRINGS (sizeof (tc_strings) / sizeof (struct _tc_string))
@@ -306,26 +356,27 @@ get_term_capabilities (bp)
register int i;
for (i = 0; i < NUM_TC_STRINGS; i++)
+# ifdef __LCC__
+ *(tc_strings[i].tc_value) = tgetstr ((char *)tc_strings[i].tc_var, bp);
+# else
*(tc_strings[i].tc_value) = tgetstr (tc_strings[i].tc_var, bp);
+# endif
#endif
tcap_initialized = 1;
}
-#define CUSTOM_REDISPLAY_FUNC() (rl_redisplay_function != rl_redisplay)
-#define CUSTOM_INPUT_FUNC() (rl_getc_function != rl_getc)
-
int
_rl_init_terminal_io (terminal_name)
- char *terminal_name;
+ const char *terminal_name;
{
- char *term, *buffer;
+ const char *term;
+ char *buffer;
int tty, tgetent_ret;
- Keymap xkeymap;
- term = terminal_name ? terminal_name : get_env_value ("TERM");
- term_clrpag = term_cr = term_clreol = (char *)NULL;
+ term = terminal_name ? terminal_name : sh_get_env_value ("TERM");
+ _rl_term_clrpag = _rl_term_cr = _rl_term_clreol = (char *)NULL;
tty = rl_instream ? fileno (rl_instream) : 0;
- screenwidth = screenheight = 0;
+ _rl_screenwidth = _rl_screenheight = 0;
if (term == 0)
term = "dumb";
@@ -350,10 +401,10 @@ _rl_init_terminal_io (terminal_name)
else
{
if (term_string_buffer == 0)
- term_string_buffer = xmalloc(2032);
+ term_string_buffer = (char *)xmalloc(2032);
if (term_buffer == 0)
- term_buffer = xmalloc(4080);
+ term_buffer = (char *)xmalloc(4080);
buffer = term_string_buffer;
@@ -366,41 +417,43 @@ _rl_init_terminal_io (terminal_name)
FREE (term_buffer);
buffer = term_buffer = term_string_buffer = (char *)NULL;
- dumb_term = 1;
_rl_term_autowrap = 0; /* used by _rl_get_screen_size */
#if defined (__EMX__)
- _emx_get_screensize (&screenwidth, &screenheight);
- screenwidth--;
+ _emx_get_screensize (&_rl_screenwidth, &_rl_screenheight);
+ _rl_screenwidth--;
#else /* !__EMX__ */
_rl_get_screen_size (tty, 0);
#endif /* !__EMX__ */
/* Defaults. */
- if (screenwidth <= 0 || screenheight <= 0)
+ if (_rl_screenwidth <= 0 || _rl_screenheight <= 0)
{
- screenwidth = 79;
- screenheight = 24;
+ _rl_screenwidth = 79;
+ _rl_screenheight = 24;
}
/* Everything below here is used by the redisplay code (tputs). */
- screenchars = screenwidth * screenheight;
- term_cr = "\r";
- term_im = term_ei = term_ic = term_IC = (char *)NULL;
- term_up = term_dc = term_DC = visible_bell = (char *)NULL;
- term_ku = term_kd = term_kl = term_kr = (char *)NULL;
- term_mm = term_mo = (char *)NULL;
+ _rl_screenchars = _rl_screenwidth * _rl_screenheight;
+ _rl_term_cr = "\r";
+ _rl_term_im = _rl_term_ei = _rl_term_ic = _rl_term_IC = (char *)NULL;
+ _rl_term_up = _rl_term_dc = _rl_term_DC = _rl_visible_bell = (char *)NULL;
+ _rl_term_ku = _rl_term_kd = _rl_term_kl = _rl_term_kr = (char *)NULL;
+ _rl_term_kh = _rl_term_kH = _rl_term_kI = (char *)NULL;
+ _rl_term_ks = _rl_term_ke = _rl_term_at7 = (char *)NULL;
+ _rl_term_mm = _rl_term_mo = (char *)NULL;
+ _rl_term_ve = _rl_term_vs = (char *)NULL;
#if defined (HACK_TERMCAP_MOTION)
term_forward_char = (char *)NULL;
#endif
- terminal_can_insert = term_has_meta = 0;
+ _rl_terminal_can_insert = term_has_meta = 0;
/* Reasonable defaults for tgoto(). Readline currently only uses
- tgoto if term_IC or term_DC is defined, but just in case we
+ tgoto if _rl_term_IC or _rl_term_DC is defined, but just in case we
change that later... */
PC = '\0';
- BC = term_backspace = "\b";
- UP = term_up;
+ BC = _rl_term_backspace = "\b";
+ UP = _rl_term_up;
return 0;
}
@@ -409,12 +462,12 @@ _rl_init_terminal_io (terminal_name)
/* Set up the variables that the termcap library expects the application
to provide. */
- PC = term_pc ? *term_pc : 0;
- BC = term_backspace;
- UP = term_up;
+ PC = _rl_term_pc ? *_rl_term_pc : 0;
+ BC = _rl_term_backspace;
+ UP = _rl_term_up;
- if (!term_cr)
- term_cr = "\r";
+ if (!_rl_term_cr)
+ _rl_term_cr = "\r";
_rl_term_autowrap = tgetflag ("am") && tgetflag ("xn");
@@ -424,48 +477,53 @@ _rl_init_terminal_io (terminal_name)
character insertion if *any one of* the capabilities `IC',
`im', `ic' or `ip' is provided." But we can't do anything if
only `ip' is provided, so... */
- terminal_can_insert = (term_IC || term_im || term_ic);
+ _rl_terminal_can_insert = (_rl_term_IC || _rl_term_im || _rl_term_ic);
/* Check to see if this terminal has a meta key and clear the capability
variables if there is none. */
term_has_meta = (tgetflag ("km") || tgetflag ("MT"));
if (!term_has_meta)
- term_mm = term_mo = (char *)NULL;
+ _rl_term_mm = _rl_term_mo = (char *)NULL;
#endif /* !__MSDOS__ */
/* Attempt to find and bind the arrow keys. Do not override already
bound keys in an overzealous attempt, however. */
- xkeymap = _rl_keymap;
-
- _rl_keymap = emacs_standard_keymap;
- _rl_bind_if_unbound (term_ku, rl_get_previous_history);
- _rl_bind_if_unbound (term_kd, rl_get_next_history);
- _rl_bind_if_unbound (term_kr, rl_forward);
- _rl_bind_if_unbound (term_kl, rl_backward);
- _rl_bind_if_unbound (term_kh, rl_beg_of_line); /* Home */
- _rl_bind_if_unbound (term_kH, rl_end_of_line); /* End */
+ bind_termcap_arrow_keys (emacs_standard_keymap);
#if defined (VI_MODE)
- _rl_keymap = vi_movement_keymap;
- _rl_bind_if_unbound (term_ku, rl_get_previous_history);
- _rl_bind_if_unbound (term_kd, rl_get_next_history);
- _rl_bind_if_unbound (term_kr, rl_forward);
- _rl_bind_if_unbound (term_kl, rl_backward);
-
- _rl_bind_if_unbound (term_kh, rl_beg_of_line); /* Home */
- _rl_bind_if_unbound (term_kH, rl_end_of_line); /* End */
+ bind_termcap_arrow_keys (vi_movement_keymap);
+ bind_termcap_arrow_keys (vi_insertion_keymap);
#endif /* VI_MODE */
- _rl_keymap = xkeymap;
-
return 0;
}
+/* Bind the arrow key sequences from the termcap description in MAP. */
+static void
+bind_termcap_arrow_keys (map)
+ Keymap map;
+{
+ Keymap xkeymap;
+
+ xkeymap = _rl_keymap;
+ _rl_keymap = map;
+
+ _rl_bind_if_unbound (_rl_term_ku, rl_get_previous_history);
+ _rl_bind_if_unbound (_rl_term_kd, rl_get_next_history);
+ _rl_bind_if_unbound (_rl_term_kr, rl_forward);
+ _rl_bind_if_unbound (_rl_term_kl, rl_backward);
+
+ _rl_bind_if_unbound (_rl_term_kh, rl_beg_of_line); /* Home */
+ _rl_bind_if_unbound (_rl_term_at7, rl_end_of_line); /* End */
+
+ _rl_keymap = xkeymap;
+}
+
char *
rl_get_termcap (cap)
- char *cap;
+ const char *cap;
{
register int i;
@@ -483,7 +541,7 @@ rl_get_termcap (cap)
has changed. */
int
rl_reset_terminal (terminal_name)
- char *terminal_name;
+ const char *terminal_name;
{
_rl_init_terminal_io (terminal_name);
return 0;
@@ -509,7 +567,7 @@ _rl_output_character_function (c)
/* Write COUNT characters from STRING to the output stream. */
void
_rl_output_some_chars (string, count)
- char *string;
+ const char *string;
int count;
{
fwrite (string, 1, count, _rl_out_stream);
@@ -523,9 +581,9 @@ _rl_backspace (count)
register int i;
#ifndef __MSDOS__
- if (term_backspace)
+ if (_rl_term_backspace)
for (i = 0; i < count; i++)
- tputs (term_backspace, 1, _rl_output_character_function);
+ tputs (_rl_term_backspace, 1, _rl_output_character_function);
else
#endif
for (i = 0; i < count; i++)
@@ -535,11 +593,11 @@ _rl_backspace (count)
/* Move to the start of the next line. */
int
-crlf ()
+rl_crlf ()
{
#if defined (NEW_TTY_DRIVER)
- if (term_cr)
- tputs (term_cr, 1, _rl_output_character_function);
+ if (_rl_term_cr)
+ tputs (_rl_term_cr, 1, _rl_output_character_function);
#endif /* NEW_TTY_DRIVER */
putc ('\n', _rl_out_stream);
return 0;
@@ -547,7 +605,7 @@ crlf ()
/* Ring the terminal bell. */
int
-ding ()
+rl_ding ()
{
if (readline_echoing_p)
{
@@ -561,9 +619,9 @@ ding ()
ScreenVisualBell ();
break;
#else
- if (visible_bell)
+ if (_rl_visible_bell)
{
- tputs (visible_bell, 1, _rl_output_character_function);
+ tputs (_rl_visible_bell, 1, _rl_output_character_function);
break;
}
#endif
@@ -588,8 +646,8 @@ void
_rl_enable_meta_key ()
{
#if !defined (__DJGPP__)
- if (term_has_meta && term_mm)
- tputs (term_mm, 1, _rl_output_character_function);
+ if (term_has_meta && _rl_term_mm)
+ tputs (_rl_term_mm, 1, _rl_output_character_function);
#endif
}
@@ -598,9 +656,35 @@ _rl_control_keypad (on)
int on;
{
#if !defined (__DJGPP__)
- if (on && term_ks)
- tputs (term_ks, 1, _rl_output_character_function);
- else if (!on && term_ke)
- tputs (term_ke, 1, _rl_output_character_function);
+ if (on && _rl_term_ks)
+ tputs (_rl_term_ks, 1, _rl_output_character_function);
+ else if (!on && _rl_term_ke)
+ tputs (_rl_term_ke, 1, _rl_output_character_function);
#endif
}
+
+/* **************************************************************** */
+/* */
+/* Controlling the Cursor */
+/* */
+/* **************************************************************** */
+
+/* Set the cursor appropriately depending on IM, which is one of the
+ insert modes (insert or overwrite). Insert mode gets the normal
+ cursor. Overwrite mode gets a very visible cursor. Only does
+ anything if we have both capabilities. */
+void
+_rl_set_cursor (im, force)
+ int im, force;
+{
+ if (_rl_term_ve && _rl_term_vs)
+ {
+ if (force || im != rl_insert_mode)
+ {
+ if (im == RL_IM_OVERWRITE)
+ tputs (_rl_term_vs, 1, _rl_output_character_function);
+ else
+ tputs (_rl_term_ve, 1, _rl_output_character_function);
+ }
+ }
+}