-
-/***************************************************************************
-* COPYRIGHT NOTICE *
-****************************************************************************
-* ncurses is copyright (C) 1992-1995 *
-* Zeyd M. Ben-Halim *
-* zmbenhal@netcom.com *
-* Eric S. Raymond *
-* esr@snark.thyrsus.com *
-* *
-* Permission is hereby granted to reproduce and distribute ncurses *
-* by any means and for any fee, whether alone or as part of a *
-* larger distribution, in source or in binary form, PROVIDED *
-* this notice is included with any such distribution, and is not *
-* removed from any of its header files. Mention of ncurses in any *
-* applications linked with it is highly appreciated. *
-* *
-* ncurses comes AS IS with no warranty, implied or expressed. *
-* *
-***************************************************************************/
+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ ****************************************************************************/
#include <curses.priv.h>
-#ifdef SVR4_TERMIO
+#if defined(SVR4_TERMIO) && !defined(_POSIX_SOURCE)
#define _POSIX_SOURCE
#endif
#include <term.h> /* clear_screen, cup & friends, cur_term */
-MODULE_ID("$Id: lib_newterm.c,v 1.23 1997/03/30 01:42:01 tom Exp $")
+MODULE_ID("$Id: lib_newterm.c,v 1.33 1998/02/11 12:13:57 tom Exp $")
+
+#ifndef ONLCR /* Allows compilation under the QNX 4.2 OS */
+#define ONLCR 0
+#endif
-/* This should be moved to TERMINAL */
+/*
+ * SVr4/XSI Curses specify that hardware echo is turned off in initscr, and not
+ * restored during the curses session. The library simulates echo in software.
+ * (The behavior is unspecified if the application enables hardware echo).
+ *
+ * The newterm function also initializes terminal settings, and since initscr
+ * is supposed to behave as if it calls newterm, we do it here.
+ */
+static inline int _nc_initscr(void)
+{
+ /* for extended XPG4 conformance requires cbreak() at this point */
+ /* (SVr4 curses does this anyway) */
+ cbreak();
+
+#ifdef TERMIOS
+ cur_term->Nttyb.c_lflag &= ~(ECHO|ECHONL);
+ cur_term->Nttyb.c_iflag &= ~(ICRNL|INLCR|IGNCR);
+ cur_term->Nttyb.c_oflag &= ~(ONLCR);
+#else
+ cur_term->Nttyb.sg_flags &= ~(ECHO|CRMOD);
+#endif
+ return _nc_set_curterm(&cur_term->Nttyb);
+}
+
+/*
+ * filter() has to be called before either initscr() or newterm(), so there is
+ * apparently no way to make this flag apply to some terminals and not others,
+ * aside from possibly delaying a filter() call until some terminals have been
+ * initialized.
+ */
static int filter_mode = FALSE;
void filter(void)
SCREEN * newterm(const char *term, FILE *ofp, FILE *ifp)
{
int errret;
+SCREEN* current;
#ifdef TRACE
char *t = getenv("NCURSES_TRACE");
/* this loads the capability entry, then sets LINES and COLS */
if (setupterm(term, fileno(ofp), &errret) == ERR)
- return NULL;
+ return 0;
/*
* Check for mismatched graphic-rendition capabilities. Most SVr4
- * terminfo tree contain entries that have rmul or rmso equated to sgr0
- * (Solaris curses copes with those entries). We do this only for
+ * terminfo trees contain entries that have rmul or rmso equated to
+ * sgr0 (Solaris curses copes with those entries). We do this only for
* curses, since many termcap applications assume that smso/rmso and
* smul/rmul are paired, and will not function properly if we remove
* rmso or rmul. Curses applications shouldn't be looking at this
T(("TABSIZE = %d", TABSIZE));
#ifdef clear_screen
- clear_screen = (char *)NULL;
- cursor_down = parm_down_cursor = (char *)NULL;
- cursor_address = (char *)NULL;
- cursor_up = parm_up_cursor = (char *)NULL;
- row_address = (char *)NULL;
-
+ clear_screen = 0;
+ cursor_down = parm_down_cursor = 0;
+ cursor_address = 0;
+ cursor_up = parm_up_cursor = 0;
+ row_address = 0;
+
cursor_home = carriage_return;
#endif /* clear_screen */
}
if (_nc_slk_format)
{
if (ERR==_nc_ripoffline(-SLK_LINES, _nc_slk_initialize))
- return NULL;
+ return 0;
}
/* this actually allocates the screen structure, and saves the
* original terminal settings.
*/
- if (_nc_setupscreen(LINES, COLS, ofp) == ERR)
- return NULL;
+ current = SP;
+ _nc_set_screen(0);
+ if (_nc_setupscreen(LINES, COLS, ofp) == ERR) {
+ _nc_set_screen(current);
+ return 0;
+ }
#ifdef num_labels
/* if the terminal type has real soft labels, set those up */
#endif
SP->_endwin = FALSE;
+ /* Check whether we can optimize scrolling under dumb terminals in case
+ * we do not have any of these capabilities, scrolling optimization
+ * will be useless.
+ */
+ SP->_scrolling = ((scroll_forward && scroll_reverse) ||
+ ((parm_rindex || parm_insert_line || insert_line) &&
+ (parm_index || parm_delete_line || delete_line)));
+
baudrate(); /* sets a field in the SP structure */
+ SP->_keytry = 0;
+
/* compute movement costs so we can do better move optimization */
_nc_mvcur_init();
_nc_signal_handler(TRUE);
- /* open a connection to the screen's associated mouse, if any */
- _nc_mouse_init(SP);
+ /* initialize terminal to a sane state */
+ _nc_screen_init();
/* Initialize the terminal line settings. */
_nc_initscr();
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