+++ /dev/null
-/****************************************************************************
- * 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> *
- ****************************************************************************/
-
-
-
-/*
-** lib_newterm.c
-**
-** The newterm() function.
-**
-*/
-
-#include <curses.priv.h>
-
-#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 1.33 1998/02/11 12:13:57 tom Exp $")
-
-#ifndef ONLCR /* Allows compilation under the QNX 4.2 OS */
-#define ONLCR 0
-#endif
-
-/*
- * 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)
-{
- filter_mode = TRUE;
-}
-
-SCREEN * newterm(const char *term, FILE *ofp, FILE *ifp)
-{
-int errret;
-SCREEN* current;
-#ifdef TRACE
-char *t = getenv("NCURSES_TRACE");
-
- if (t)
- trace((unsigned) strtol(t, 0, 0));
-#endif
-
- T((T_CALLED("newterm(\"%s\",%p,%p)"), term, ofp, ifp));
-
- /* this loads the capability entry, then sets LINES and COLS */
- if (setupterm(term, fileno(ofp), &errret) == ERR)
- return 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.
- */
- if (exit_attribute_mode) {
-#define SGR0_FIX(mode) if (mode != 0 && !strcmp(mode, exit_attribute_mode)) \
- mode = 0
- SGR0_FIX(exit_underline_mode);
- SGR0_FIX(exit_standout_mode);
- }
-
- /* implement filter mode */
- if (filter_mode) {
- LINES = 1;
-
-#ifdef init_tabs
- if (init_tabs != -1)
- TABSIZE = init_tabs;
- else
-#endif /* init_tabs */
- TABSIZE = 8;
-
- T(("TABSIZE = %d", TABSIZE));
-
-#ifdef clear_screen
- 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 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. */
-#ifdef num_labels
- if (num_labels <= 0 || !SLK_STDFMT)
-#endif /* num_labels */
- if (_nc_slk_format)
- {
- if (ERR==_nc_ripoffline(-SLK_LINES, _nc_slk_initialize))
- return 0;
- }
- /* 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;
- }
-
-#ifdef num_labels
- /* if the terminal type has real soft labels, set those up */
- if (_nc_slk_format && num_labels > 0 && SLK_STDFMT)
- _nc_slk_initialize(stdscr, COLS);
-#endif /* num_labels */
-
- SP->_ifd = fileno(ifp);
- SP->_checkfd = fileno(ifp);
- typeahead(fileno(ifp));
-#ifdef TERMIOS
- SP->_use_meta = ((cur_term->Ottyb.c_cflag & CSIZE) == CS8 &&
- !(cur_term->Ottyb.c_iflag & ISTRIP));
-#else
- 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;
-
- /* compute movement costs so we can do better move optimization */
- _nc_mvcur_init();
-
- _nc_signal_handler(TRUE);
-
- /* initialize terminal to a sane state */
- _nc_screen_init();
-
- /* Initialize the terminal line settings. */
- _nc_initscr();
-
- T((T_RETURN("%p"), SP));
- return(SP);
-}
projects / ncurses.git / blobdiff