/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2006,2007 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 *
****************************************************************************/
/*
#include <term.h> /* clear_screen, cup & friends, cur_term */
#include <tic.h>
-MODULE_ID("$Id: lib_newterm.c,v 1.56 2002/10/12 15:24:08 tom Exp $")
+MODULE_ID("$Id: lib_newterm.c,v 1.67 2007/04/21 20:47:32 tom Exp $")
#ifndef ONLCR /* Allows compilation under the QNX 4.2 OS */
#define ONLCR 0
* 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
+static NCURSES_INLINE int
_nc_initscr(void)
{
int result = ERR;
buf.c_lflag &= ~(ECHO | ECHONL);
buf.c_iflag &= ~(ICRNL | INLCR | IGNCR);
buf.c_oflag &= ~(ONLCR);
-#else
+#elif HAVE_SGTTY_H
buf.sg_flags &= ~(ECHO | CRMOD);
+#else
+ memset(&buf, 0, sizeof(buf));
#endif
if ((result = _nc_set_tty_mode(&buf)) == OK)
cur_term->Nttyb = buf;
* aside from possibly delaying a filter() call until some terminals have been
* initialized.
*/
-static int filter_mode = FALSE;
-
NCURSES_EXPORT(void)
filter(void)
{
+ START_TRACE();
T((T_CALLED("filter")));
- filter_mode = TRUE;
+ _nc_prescreen.filter_mode = TRUE;
returnVoid;
}
+#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)
+{
+ START_TRACE();
+ T((T_CALLED("nofilter")));
+ _nc_prescreen.filter_mode = FALSE;
+ returnVoid;
+}
+#endif
+
NCURSES_EXPORT(SCREEN *)
-newterm(NCURSES_CONST char *name, FILE * ofp, FILE * ifp)
+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));
/* this loads the capability entry, then sets LINES and COLS */
- if (setupterm(name, fileno(ofp), &errret) == ERR)
- returnSP(0);
-
- /* implement filter mode */
- if (filter_mode) {
- LINES = 1;
-
- if (VALID_NUMERIC(init_tabs))
- 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))
- returnSP(0);
+ 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);
+
+ /* allow user to set maximum escape delay from the environment */
+ if ((value = _nc_getenv_num("ESCDELAY")) >= 0) {
+#if USE_REENTRANT
+ SP->_ESCDELAY = value;
+#else
+ ESCDELAY = value;
+#endif
}
- /* 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);
- returnSP(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);
- typeahead(fileno(ifp));
+ if (_nc_setupscreen(LINES,
+ COLS,
+ ofp,
+ _nc_prescreen.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);
- returnSP(SP);
+ result = SP;
+ }
+ }
+ returnSP(result);
}
projects / ncurses.git / blobdiff