/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2005,2006 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 *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
****************************************************************************/
-
-
/*
** lib_newterm.c
**
#include <curses.priv.h>
-#if defined(SVR4_TERMIO) && !defined(_POSIX_SOURCE)
+#if SVR4_TERMIO && !defined(_POSIX_SOURCE)
#define _POSIX_SOURCE
#endif
-#include <term.h> /* clear_screen, cup & friends, cur_term */
+#include <term.h> /* clear_screen, cup & friends, cur_term */
+#include <tic.h>
-MODULE_ID("$Id: lib_newterm.c,v 1.41 1999/07/24 20:07:48 tom Exp $")
+MODULE_ID("$Id: lib_newterm.c,v 1.64 2006/01/14 15:36:24 tom Exp $")
-#ifndef ONLCR /* Allows compilation under the QNX 4.2 OS */
+#ifndef ONLCR /* Allows compilation under the QNX 4.2 OS */
#define ONLCR 0
#endif
* 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)
+static NCURSES_INLINE int
+_nc_initscr(void)
{
- /* for extended XPG4 conformance requires cbreak() at this point */
- /* (SVr4 curses does this anyway) */
- cbreak();
+ int result = ERR;
+ /* for extended XPG4 conformance requires cbreak() at this point */
+ /* (SVr4 curses does this anyway) */
+ if (cbreak() == OK) {
+ TTY buf;
+
+ buf = cur_term->Nttyb;
#ifdef TERMIOS
- cur_term->Nttyb.c_lflag &= ~(ECHO|ECHONL);
- cur_term->Nttyb.c_iflag &= ~(ICRNL|INLCR|IGNCR);
- cur_term->Nttyb.c_oflag &= ~(ONLCR);
+ buf.c_lflag &= ~(ECHO | ECHONL);
+ buf.c_iflag &= ~(ICRNL | INLCR | IGNCR);
+ buf.c_oflag &= ~(ONLCR);
+#elif HAVE_SGTTY_H
+ buf.sg_flags &= ~(ECHO | CRMOD);
#else
- cur_term->Nttyb.sg_flags &= ~(ECHO|CRMOD);
+ memset(&buf, 0, sizeof(buf));
#endif
- return _nc_set_tty_mode(&cur_term->Nttyb);
+ if ((result = _nc_set_tty_mode(&buf)) == OK)
+ cur_term->Nttyb = buf;
+ }
+ return result;
}
/*
* aside from possibly delaying a filter() call until some terminals have been
* initialized.
*/
-static int filter_mode = FALSE;
+static bool filter_mode = FALSE;
-void filter(void)
+NCURSES_EXPORT(void)
+filter(void)
{
+ START_TRACE();
+ T((T_CALLED("filter")));
filter_mode = TRUE;
+ returnVoid;
}
-SCREEN * newterm(NCURSES_CONST char *name, FILE *ofp, FILE *ifp)
+#if NCURSES_EXT_FUNCS
+/*
+ * An extension, allowing the application to open a new screen without
+ * requiring it to also be filtered.
+ */
+NCURSES_EXPORT(void)
+nofilter(void)
{
-int errret;
-int slk_format = _nc_slk_format;
-SCREEN* current;
-#ifdef TRACE
-int t = _nc_getenv_num("NCURSES_TRACE");
-
- if (t >= 0)
- trace(t);
+ START_TRACE();
+ T((T_CALLED("nofilter")));
+ filter_mode = FALSE;
+ returnVoid;
+}
#endif
- T((T_CALLED("newterm(\"%s\",%p,%p)"), name, ofp, ifp));
-
- /* this loads the capability entry, then sets LINES and COLS */
- if (setupterm(name, fileno(ofp), &errret) == ERR)
- return 0;
-
- /* implement filter mode */
- if (filter_mode) {
- LINES = 1;
-
- if (init_tabs != -1)
- TABSIZE = init_tabs;
- else
- TABSIZE = 8;
-
- T(("TABSIZE = %d", TABSIZE));
-
- 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;
- }
-
- /* If we must simulate soft labels, grab off the line to be used.
- We assume that we must simulate, if it is none of the standard
- formats (4-4 or 3-2-3) for which there may be some hardware
- support. */
- if (num_labels <= 0 || !SLK_STDFMT(slk_format))
- if (slk_format)
- {
- if (ERR==_nc_ripoffline(-SLK_LINES(slk_format),
- _nc_slk_initialize))
- return 0;
- }
- /* this actually allocates the screen structure, and saves the
- * original terminal settings.
+NCURSES_EXPORT(SCREEN *)
+newterm(NCURSES_CONST char *name, FILE *ofp, FILE *ifp)
+{
+ int value;
+ int errret;
+ int slk_format = _nc_slk_format;
+ SCREEN *current;
+ SCREEN *result = 0;
+
+ START_TRACE();
+ T((T_CALLED("newterm(\"%s\",%p,%p)"), name, ofp, ifp));
+
+ _nc_handle_sigwinch(0);
+
+ /* allow user to set maximum escape delay from the environment */
+ if ((value = _nc_getenv_num("ESCDELAY")) >= 0) {
+ ESCDELAY = value;
+ }
+
+ /* this loads the capability entry, then sets LINES and COLS */
+ if (setupterm(name, fileno(ofp), &errret) == ERR) {
+ result = 0;
+ } else {
+ /*
+ * This actually allocates the screen structure, and saves the original
+ * terminal settings.
*/
current = SP;
_nc_set_screen(0);
- if (_nc_setupscreen(LINES, COLS, ofp) == ERR) {
- _nc_set_screen(current);
- return 0;
- }
-
- /* if the terminal type has real soft labels, set those up */
- if (slk_format && num_labels > 0 && SLK_STDFMT(slk_format))
- _nc_slk_initialize(stdscr, COLS);
-
- SP->_ifd = fileno(ifp);
- SP->_checkfd = fileno(ifp);
- typeahead(fileno(ifp));
+ if (_nc_setupscreen(LINES, COLS, ofp, filter_mode, slk_format) == ERR) {
+ _nc_set_screen(current);
+ result = 0;
+ } else {
+ /* if the terminal type has real soft labels, set those up */
+ if (slk_format && num_labels > 0 && SLK_STDFMT(slk_format))
+ _nc_slk_initialize(stdscr, COLS);
+
+ SP->_ifd = fileno(ifp);
+ typeahead(fileno(ifp));
#ifdef TERMIOS
- SP->_use_meta = ((cur_term->Ottyb.c_cflag & CSIZE) == CS8 &&
- !(cur_term->Ottyb.c_iflag & ISTRIP));
+ SP->_use_meta = ((cur_term->Ottyb.c_cflag & CSIZE) == CS8 &&
+ !(cur_term->Ottyb.c_iflag & ISTRIP));
#else
- SP->_use_meta = FALSE;
+ SP->_use_meta = FALSE;
#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;
-
- /*
- * Check for mismatched graphic-rendition capabilities. Most SVr4
- * 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
- * detail.
- */
+ 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;
+
+ /*
+ * Check for mismatched graphic-rendition capabilities. Most SVr4
+ * 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 detail.
+ */
#define SGR0_TEST(mode) (mode != 0) && (exit_attribute_mode == 0 || strcmp(mode, exit_attribute_mode))
- SP->_use_rmso = SGR0_TEST(exit_standout_mode);
- SP->_use_rmul = SGR0_TEST(exit_underline_mode);
+ SP->_use_rmso = SGR0_TEST(exit_standout_mode);
+ SP->_use_rmul = SGR0_TEST(exit_underline_mode);
- /* compute movement costs so we can do better move optimization */
- _nc_mvcur_init();
+ /* compute movement costs so we can do better move optimization */
+ _nc_mvcur_init();
- /* initialize terminal to a sane state */
- _nc_screen_init();
+ /* initialize terminal to a sane state */
+ _nc_screen_init();
- /* Initialize the terminal line settings. */
- _nc_initscr();
+ /* Initialize the terminal line settings. */
+ _nc_initscr();
- _nc_signal_handler(TRUE);
+ _nc_signal_handler(TRUE);
- T((T_RETURN("%p"), SP));
- return(SP);
+ result = SP;
+ }
+ }
+ _nc_handle_sigwinch(1);
+ returnSP(result);
}
projects / ncurses.git / blobdiff