=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/less/screen.c,v retrieving revision 1.1.1.1 retrieving revision 1.1.1.2 diff -c -r1.1.1.1 -r1.1.1.2 *** src/usr.bin/less/screen.c 1996/09/21 05:39:41 1.1.1.1 --- src/usr.bin/less/screen.c 2003/04/13 18:21:21 1.1.1.2 *************** *** 1,40 **** /* ! * Copyright (c) 1984,1985,1989,1994,1995 Mark Nudelman ! * All rights reserved. * ! * Redistribution and use in source and binary forms, with or without ! * modification, are permitted provided that the following conditions ! * are met: ! * 1. Redistributions of source code must retain the above copyright ! * notice, this list of conditions and the following disclaimer. ! * 2. Redistributions in binary form must reproduce the above copyright ! * notice in the documentation and/or other materials provided with ! * the distribution. * ! * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY ! * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ! * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR ! * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE ! * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR ! * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT ! * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR ! * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ! * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE ! * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN ! * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Routines which deal with the characteristics of the terminal. * Uses termcap to be as terminal-independent as possible. - * - * {{ Maybe someday this should be rewritten to use curses or terminfo. }} */ #include "less.h" #include "cmd.h" #if HAVE_TERMIOS_H && HAVE_TERMIOS_FUNCS #include #if HAVE_SYS_IOCTL_H && !defined(TIOCGWINSZ) --- 1,43 ---- /* ! * Copyright (C) 1984-2002 Mark Nudelman * ! * You may distribute under the terms of either the GNU General Public ! * License or the Less License, as specified in the README file. * ! * For more information about less, or for information on how to ! * contact the author, see the README file. */ /* * Routines which deal with the characteristics of the terminal. * Uses termcap to be as terminal-independent as possible. */ #include "less.h" #include "cmd.h" + #if MSDOS_COMPILER + #include "pckeys.h" + #if MSDOS_COMPILER==MSOFTC + #include + #else + #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC + #include + #if MSDOS_COMPILER==DJGPPC + #include + extern int fd0; + #endif + #else + #if MSDOS_COMPILER==WIN32C + #include + #endif + #endif + #endif + #include + + #else + #if HAVE_TERMIOS_H && HAVE_TERMIOS_FUNCS #include #if HAVE_SYS_IOCTL_H && !defined(TIOCGWINSZ) *************** *** 44,71 **** #if HAVE_TERMIO_H #include #else #include #if HAVE_SYS_IOCTL_H && (defined(TIOCGWINSZ) || defined(TCGETA) || defined(TIOCGETP) || defined(WIOCGETD)) #include #endif #endif #endif #if HAVE_TERMCAP_H #include #endif ! ! #ifndef TIOCGWINSZ ! /* ! * For the Unix PC (ATT 7300 & 3B1): ! * Since WIOCGETD is defined in sys/window.h, we can't use that to decide ! * whether to include sys/window.h. Use SIGPHONE from sys/signal.h instead. ! */ #include ! #ifdef SIGPHONE ! #include #endif - #endif - #if HAVE_SYS_STREAM_H #include #endif --- 47,73 ---- #if HAVE_TERMIO_H #include #else + #if HAVE_SGSTAT_H + #include + #else #include + #endif #if HAVE_SYS_IOCTL_H && (defined(TIOCGWINSZ) || defined(TCGETA) || defined(TIOCGETP) || defined(WIOCGETD)) #include #endif #endif #endif + #if HAVE_TERMCAP_H #include #endif ! #ifdef _OSK ! #include ! #endif ! #if OS2 #include ! #include "pckeys.h" #endif #if HAVE_SYS_STREAM_H #include #endif *************** *** 73,84 **** --- 75,162 ---- #include #endif + #endif /* MSDOS_COMPILER */ + + /* + * Check for broken termios package that forces you to manually + * set the line discipline. + */ + #ifdef __ultrix__ + #define MUST_SET_LINE_DISCIPLINE 1 + #else + #define MUST_SET_LINE_DISCIPLINE 0 + #endif + #if OS2 #define DEFAULT_TERM "ansi" + static char *windowid; #else #define DEFAULT_TERM "unknown" #endif + #if MSDOS_COMPILER==MSOFTC + static int videopages; + static long msec_loops; + static int flash_created = 0; + #define SETCOLORS(fg,bg) { _settextcolor(fg); _setbkcolor(bg); } + #endif + + #if MSDOS_COMPILER==BORLANDC + static unsigned short *whitescreen; + static int flash_created = 0; + #endif + #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC + #define _settextposition(y,x) gotoxy(x,y) + #define _clearscreen(m) clrscr() + #define _outtext(s) cputs(s) + #define SETCOLORS(fg,bg) { textcolor(fg); textbackground(bg); } + extern int sc_height; + #endif + + #if MSDOS_COMPILER==WIN32C + struct keyRecord + { + int ascii; + int scan; + } currentKey; + + static int keyCount = 0; + static WORD curr_attr; + static int pending_scancode = 0; + static WORD *whitescreen; + + static HANDLE con_out_save = INVALID_HANDLE_VALUE; /* previous console */ + static HANDLE con_out_ours = INVALID_HANDLE_VALUE; /* our own */ + HANDLE con_out = INVALID_HANDLE_VALUE; /* current console */ + + extern int quitting; + static void win32_init_term(); + static void win32_deinit_term(); + + #define FG_COLORS (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_INTENSITY) + #define BG_COLORS (BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE | BACKGROUND_INTENSITY) + #define MAKEATTR(fg,bg) ((WORD)((fg)|((bg)<<4))) + #define SETCOLORS(fg,bg) { curr_attr = MAKEATTR(fg,bg); \ + if (SetConsoleTextAttribute(con_out, curr_attr) == 0) \ + error("SETCOLORS failed"); } + #endif + + #if MSDOS_COMPILER + public int nm_fg_color; /* Color of normal text */ + public int nm_bg_color; + public int bo_fg_color; /* Color of bold text */ + public int bo_bg_color; + public int ul_fg_color; /* Color of underlined text */ + public int ul_bg_color; + public int so_fg_color; /* Color of standout text */ + public int so_bg_color; + public int bl_fg_color; /* Color of blinking text */ + public int bl_bg_color; + static int sy_fg_color; /* Color of system text (before less) */ + static int sy_bg_color; + + #else + /* * Strings passed to tputs() to do various terminal functions. */ *************** *** 105,110 **** --- 183,189 ---- *sc_e_keypad, /* End keypad mode */ *sc_init, /* Startup terminal initialization */ *sc_deinit; /* Exit terminal de-initialization */ + #endif static int init_done = 0; *************** *** 119,126 **** --- 198,212 ---- public int bl_s_width, bl_e_width; /* Printing width of blink seq */ public int above_mem, below_mem; /* Memory retained above/below screen */ public int can_goto_line; /* Can move cursor to any line */ + public int clear_bg; /* Clear fills with background color */ + public int missing_cap = 0; /* Some capability is missing */ + static int attrmode = AT_NORMAL; + + #if !MSDOS_COMPILER static char *cheaper(); + static void tmodes(); + #endif /* * These two variables are sometimes defined in, *************** *** 130,141 **** extern short ospeed; /* Terminal output baud rate */ extern char PC; /* Pad character */ #endif extern int quiet; /* If VERY_QUIET, use visual bell for bell */ ! extern int know_dumb; /* Don't complain about a dumb terminal */ ! extern int back_scroll; extern int swindow; extern int no_init; #if HILITE_SEARCH extern int hilite_search; #endif --- 216,235 ---- extern short ospeed; /* Terminal output baud rate */ extern char PC; /* Pad character */ #endif + #ifdef _OSK + short ospeed; + char PC_, *UP, *BC; + #endif extern int quiet; /* If VERY_QUIET, use visual bell for bell */ ! extern int no_back_scroll; extern int swindow; extern int no_init; + extern int no_keypad; + extern int sigs; + extern int wscroll; + extern int screen_trashed; + extern int tty; #if HILITE_SEARCH extern int hilite_search; #endif *************** *** 163,189 **** if (on == curr_on) return; - #if OS2 - signal(SIGINT, SIG_IGN); - erase_char = '\b'; - kill_char = '\033'; - #else #if HAVE_TERMIOS_H && HAVE_TERMIOS_FUNCS { struct termios s; static struct termios save_term; if (on) { /* * Get terminal modes. */ ! tcgetattr(2, &s); /* * Save modes and set certain variables dependent on modes. */ ! save_term = s; #if HAVE_OSPEED switch (cfgetospeed(&s)) { --- 257,283 ---- if (on == curr_on) return; #if HAVE_TERMIOS_H && HAVE_TERMIOS_FUNCS { struct termios s; static struct termios save_term; + static int saved_term = 0; if (on) { /* * Get terminal modes. */ ! tcgetattr(tty, &s); /* * Save modes and set certain variables dependent on modes. */ ! if (!saved_term) ! { ! save_term = s; ! saved_term = 1; ! } #if HAVE_OSPEED switch (cfgetospeed(&s)) { *************** *** 249,255 **** #ifdef VWERASE werase_char = s.c_cc[VWERASE]; #else ! werase_char = 0; #endif /* --- 343,349 ---- #ifdef VWERASE werase_char = s.c_cc[VWERASE]; #else ! werase_char = CONTROL('W'); #endif /* *************** *** 274,287 **** ); s.c_oflag |= (0 ! #ifdef XTABS ! | XTABS #else #ifdef TAB3 | TAB3 #else ! #ifdef OXTABS ! | OXTABS #endif #endif #endif --- 368,381 ---- ); s.c_oflag |= (0 ! #ifdef OXTABS ! | OXTABS #else #ifdef TAB3 | TAB3 #else ! #ifdef XTABS ! | XTABS #endif #endif #endif *************** *** 309,314 **** --- 403,421 ---- ); s.c_cc[VMIN] = 1; s.c_cc[VTIME] = 0; + #ifdef VLNEXT + s.c_cc[VLNEXT] = 0; + #endif + #ifdef VDSUSP + s.c_cc[VDSUSP] = 0; + #endif + #if MUST_SET_LINE_DISCIPLINE + /* + * System's termios is broken; need to explicitly + * request TERMIODISC line discipline. + */ + s.c_line = TERMIODISC; + #endif } else { /* *************** *** 316,340 **** */ s = save_term; } ! tcsetattr(2, TCSADRAIN, &s); } #else #ifdef TCGETA { struct termio s; static struct termio save_term; if (on) { /* * Get terminal modes. */ ! ioctl(2, TCGETA, &s); /* * Save modes and set certain variables dependent on modes. */ ! save_term = s; #if HAVE_OSPEED ospeed = s.c_cflag & CBAUD; #endif --- 423,467 ---- */ s = save_term; } ! #if HAVE_FSYNC ! fsync(tty); ! #endif ! tcsetattr(tty, TCSADRAIN, &s); ! #if MUST_SET_LINE_DISCIPLINE ! if (!on) ! { ! /* ! * Broken termios *ignores* any line discipline ! * except TERMIODISC. A different old line discipline ! * is therefore not restored, yet. Restore the old ! * line discipline by hand. ! */ ! ioctl(tty, TIOCSETD, &save_term.c_line); ! } ! #endif } #else #ifdef TCGETA { struct termio s; static struct termio save_term; + static int saved_term = 0; if (on) { /* * Get terminal modes. */ ! ioctl(tty, TCGETA, &s); /* * Save modes and set certain variables dependent on modes. */ ! if (!saved_term) ! { ! save_term = s; ! saved_term = 1; ! } #if HAVE_OSPEED ospeed = s.c_cflag & CBAUD; #endif *************** *** 343,349 **** #ifdef VWERASE werase_char = s.c_cc[VWERASE]; #else ! werase_char = 0; #endif /* --- 470,476 ---- #ifdef VWERASE werase_char = s.c_cc[VWERASE]; #else ! werase_char = CONTROL('W'); #endif /* *************** *** 361,390 **** */ s = save_term; } ! ioctl(2, TCSETAW, &s); } #else { struct sgttyb s; static struct sgttyb save_term; if (on) { /* * Get terminal modes. */ ! ioctl(2, TIOCGETP, &s); /* * Save modes and set certain variables dependent on modes. */ ! save_term = s; #if HAVE_OSPEED ospeed = s.sg_ospeed; #endif erase_char = s.sg_erase; kill_char = s.sg_kill; ! werase_char = 0; /* * Set the modes to the way we want them. --- 488,523 ---- */ s = save_term; } ! ioctl(tty, TCSETAW, &s); } #else + #ifdef TIOCGETP { struct sgttyb s; static struct sgttyb save_term; + static int saved_term = 0; if (on) { /* * Get terminal modes. */ ! ioctl(tty, TIOCGETP, &s); /* * Save modes and set certain variables dependent on modes. */ ! if (!saved_term) ! { ! save_term = s; ! saved_term = 1; ! } #if HAVE_OSPEED ospeed = s.sg_ospeed; #endif erase_char = s.sg_erase; kill_char = s.sg_kill; ! werase_char = CONTROL('W'); /* * Set the modes to the way we want them. *************** *** 398,675 **** */ s = save_term; } ! ioctl(2, TIOCSETN, &s); } #endif #endif #endif curr_on = on; } ! static void ! cannot(s) ! char *s; { ! PARG parg; ! if (know_dumb) ! /* ! * User knows this is a dumb terminal, so don't tell him. ! */ ! return; ! ! parg.p_string = s; ! error("WARNING: terminal cannot %s", &parg); } ! /* ! * Get size of the output screen. ! */ ! #if OS2 ! public void ! scrsize() { ! int s[2]; ! _scrsize(s); ! sc_width = s[0]; ! sc_height = s[1]; } ! #else ! ! public void ! scrsize() { ! register char *s; ! #ifdef TIOCGWINSZ ! struct winsize w; ! #else ! #ifdef WIOCGETD ! struct uwdata w; ! #endif ! #endif ! #ifdef TIOCGWINSZ ! if (ioctl(2, TIOCGWINSZ, &w) == 0 && w.ws_row > 0) ! sc_height = w.ws_row; ! else ! #else ! #ifdef WIOCGETD ! if (ioctl(2, WIOCGETD, &w) == 0 && w.uw_height > 0) ! sc_height = w.uw_height/w.uw_vs; ! else ! #endif ! #endif ! if ((s = getenv("LINES")) != NULL) ! sc_height = atoi(s); ! else ! sc_height = tgetnum("li"); ! if (sc_height <= 0) ! sc_height = 24; ! #ifdef TIOCGWINSZ ! if (ioctl(2, TIOCGWINSZ, &w) == 0 && w.ws_col > 0) ! sc_width = w.ws_col; ! else ! #ifdef WIOCGETD ! if (ioctl(2, WIOCGETD, &w) == 0 && w.uw_width > 0) ! sc_width = w.uw_width/w.uw_hs; ! else ! #endif ! #endif ! if ((s = getenv("COLUMNS")) != NULL) ! sc_width = atoi(s); ! else ! sc_width = tgetnum("co"); ! ! if (sc_width <= 0) ! sc_width = 80; } ! #endif /* OS2 */ /* ! * Take care of the "variable" keys. ! * Certain keys send escape sequences which differ on different terminals ! * (such as the arrow keys, INSERT, DELETE, etc.) ! * Construct the commands based on these keys. */ public void ! get_editkeys() { ! char *sp; ! char *s; ! char tbuf[40]; ! static char kfcmdtable[400]; ! int sz_kfcmdtable = 0; ! static char kecmdtable[400]; ! int sz_kecmdtable = 0; - #define put_cmd(str,action,tbl,sz) { \ - strcpy(tbl+sz, str); \ - sz += strlen(str) + 1; \ - tbl[sz++] = action; } - #define put_esc_cmd(str,action,tbl,sz) { \ - tbl[sz++] = ESC; \ - put_cmd(str,action,tbl,sz); } ! #define put_fcmd(str,action) put_cmd(str,action,kfcmdtable,sz_kfcmdtable) ! #define put_ecmd(str,action) put_cmd(str,action,kecmdtable,sz_kecmdtable) ! #define put_esc_fcmd(str,action) put_esc_cmd(str,action,kfcmdtable,sz_kfcmdtable) ! #define put_esc_ecmd(str,action) put_esc_cmd(str,action,kecmdtable,sz_kecmdtable) ! /* ! * Look at some interesting keys and see what strings they send. ! * Create commands (both command keys and line-edit keys). ! */ ! ! /* RIGHT ARROW */ ! sp = tbuf; ! if ((s = tgetstr("kr", &sp)) != NULL) { ! put_ecmd(s, EC_RIGHT); ! put_esc_ecmd(s, EC_W_RIGHT); } ! ! /* LEFT ARROW */ ! sp = tbuf; ! if ((s = tgetstr("kl", &sp)) != NULL) { ! put_ecmd(s, EC_LEFT); ! put_esc_ecmd(s, EC_W_LEFT); } ! ! /* UP ARROW */ ! sp = tbuf; ! if ((s = tgetstr("ku", &sp)) != NULL) { ! put_ecmd(s, EC_UP); ! put_fcmd(s, A_B_LINE); } ! ! /* DOWN ARROW */ ! sp = tbuf; ! if ((s = tgetstr("kd", &sp)) != NULL) { ! put_ecmd(s, EC_DOWN); ! put_fcmd(s, A_F_LINE); } ! ! /* PAGE UP */ ! sp = tbuf; ! if ((s = tgetstr("kP", &sp)) != NULL) { ! put_fcmd(s, A_B_SCREEN); } ! ! /* PAGE DOWN */ ! sp = tbuf; ! if ((s = tgetstr("kN", &sp)) != NULL) { ! put_fcmd(s, A_F_SCREEN); } ! ! /* HOME */ ! sp = tbuf; ! if ((s = tgetstr("kh", &sp)) != NULL) ! { ! put_ecmd(s, EC_HOME); ! } ! /* END */ ! sp = tbuf; ! if ((s = tgetstr("@7", &sp)) != NULL) ! { ! put_ecmd(s, EC_END); ! } ! /* DELETE */ ! sp = tbuf; ! if ((s = tgetstr("kD", &sp)) == NULL) ! { ! /* Use DEL (\177) if no "kD" termcap. */ ! tbuf[1] = '\177'; ! tbuf[2] = '\0'; ! s = tbuf+1; ! } ! put_ecmd(s, EC_DELETE); ! put_esc_ecmd(s, EC_W_DELETE); ! ! /* BACKSPACE */ ! tbuf[0] = ESC; ! tbuf[1] = erase_char; ! tbuf[2] = '\0'; ! put_ecmd(tbuf, EC_W_BACKSPACE); ! if (werase_char != 0) ! { ! tbuf[0] = werase_char; ! tbuf[1] = '\0'; ! put_ecmd(tbuf, EC_W_BACKSPACE); ! } ! /* ! * Register the two tables. */ ! add_fcmd_table(kfcmdtable, sz_kfcmdtable); ! add_ecmd_table(kecmdtable, sz_kecmdtable); } ! #if DEBUG static void ! get_debug_term() { ! auto_wrap = 1; ! ignaw = 1; ! so_s_width = so_e_width = 0; ! bo_s_width = bo_e_width = 0; ! ul_s_width = ul_e_width = 0; ! bl_s_width = bl_e_width = 0; ! sc_s_keypad = "(InitKey)"; ! sc_e_keypad = "(DeinitKey)"; ! sc_init = "(InitTerm)"; ! sc_deinit = "(DeinitTerm)"; ! sc_eol_clear = "(ClearEOL)"; ! sc_eos_clear = "(ClearEOS)"; ! sc_clear = "(ClearScreen)"; ! sc_move = "(Move<%d,%d>)"; ! sc_s_in = "(SO+)"; ! sc_s_out = "(SO-)"; ! sc_u_in = "(UL+)"; ! sc_u_out = "(UL-)"; ! sc_b_in = "(BO+)"; ! sc_b_out = "(BO-)"; ! sc_bl_in = "(BL+)"; ! sc_bl_out = "(BL-)"; ! sc_visual_bell ="(VBell)"; ! sc_backspace = "(BS)"; ! sc_home = "(Home)"; ! sc_lower_left = "(LL)"; ! sc_addline = "(AddLine)"; } #endif /* * Get terminal capabilities via termcap. */ public void get_term() { char *sp; register char *t1, *t2; - register int hard; char *term; ! char termbuf[2048]; ! static char sbuf[1024]; ! #ifdef OS2 /* * Make sure the termcap database is available. */ ! sp = getenv("TERMCAP"); if (sp == NULL || *sp == '\0') { char *termcap; --- 531,1108 ---- */ s = save_term; } ! ioctl(tty, TIOCSETN, &s); } + #else + #ifdef _OSK + { + struct sgbuf s; + static struct sgbuf save_term; + static int saved_term = 0; + + if (on) + { + /* + * Get terminal modes. + */ + _gs_opt(tty, &s); + + /* + * Save modes and set certain variables dependent on modes. + */ + if (!saved_term) + { + save_term = s; + saved_term = 1; + } + erase_char = s.sg_bspch; + kill_char = s.sg_dlnch; + werase_char = CONTROL('W'); + + /* + * Set the modes to the way we want them. + */ + s.sg_echo = 0; + s.sg_eofch = 0; + s.sg_pause = 0; + s.sg_psch = 0; + } else + { + /* + * Restore saved modes. + */ + s = save_term; + } + _ss_opt(tty, &s); + } + #else + /* MS-DOS, Windows, or OS2 */ + #if OS2 + /* OS2 */ + LSIGNAL(SIGINT, SIG_IGN); #endif + erase_char = '\b'; + #if MSDOS_COMPILER==DJGPPC + kill_char = CONTROL('U'); + /* + * So that when we shell out or run another program, its + * stdin is in cooked mode. We do not switch stdin to binary + * mode if fd0 is zero, since that means we were called before + * tty was reopened in open_getchr, in which case we would be + * changing the original stdin device outside less. + */ + if (fd0 != 0) + setmode(0, on ? O_BINARY : O_TEXT); + #else + kill_char = ESC; #endif + werase_char = CONTROL('W'); #endif + #endif + #endif + #endif curr_on = on; } ! #if !MSDOS_COMPILER ! /* ! * Some glue to prevent calling termcap functions if tgetent() failed. ! */ ! static int hardcopy; ! ! static char * ! ltget_env(capname) ! char *capname; { ! char name[16]; ! strcpy(name, "LESS_TERMCAP_"); ! strcat(name, capname); ! return (lgetenv(name)); } ! static int ! ltgetflag(capname) ! char *capname; { ! char *s; ! if ((s = ltget_env(capname)) != NULL) ! return (*s != '\0' && *s != '0'); ! if (hardcopy) ! return (0); ! return (tgetflag(capname)); } ! static int ! ltgetnum(capname) ! char *capname; { ! char *s; ! if ((s = ltget_env(capname)) != NULL) ! return (atoi(s)); ! if (hardcopy) ! return (-1); ! return (tgetnum(capname)); ! } ! static char * ! ltgetstr(capname, pp) ! char *capname; ! char **pp; ! { ! char *s; ! if ((s = ltget_env(capname)) != NULL) ! return (s); ! if (hardcopy) ! return (NULL); ! return (tgetstr(capname, pp)); } ! #endif /* MSDOS_COMPILER */ /* ! * Get size of the output screen. */ public void ! scrsize() { ! register char *s; ! int sys_height; ! int sys_width; ! #if !MSDOS_COMPILER ! int n; ! #endif ! #define DEF_SC_WIDTH 80 ! #if MSDOS_COMPILER ! #define DEF_SC_HEIGHT 25 ! #else ! #define DEF_SC_HEIGHT 24 ! #endif ! sys_width = sys_height = 0; ! #if MSDOS_COMPILER==MSOFTC { ! struct videoconfig w; ! _getvideoconfig(&w); ! sys_height = w.numtextrows; ! sys_width = w.numtextcols; } ! #else ! #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC { ! struct text_info w; ! gettextinfo(&w); ! sys_height = w.screenheight; ! sys_width = w.screenwidth; } ! #else ! #if MSDOS_COMPILER==WIN32C { ! CONSOLE_SCREEN_BUFFER_INFO scr; ! GetConsoleScreenBufferInfo(con_out, &scr); ! sys_height = scr.srWindow.Bottom - scr.srWindow.Top + 1; ! sys_width = scr.srWindow.Right - scr.srWindow.Left + 1; } ! #else ! #if OS2 { ! int s[2]; ! _scrsize(s); ! sys_width = s[0]; ! sys_height = s[1]; ! /* ! * When using terminal emulators for XFree86/OS2, the ! * _scrsize function does not work well. ! * Call the scrsize.exe program to get the window size. ! */ ! windowid = getenv("WINDOWID"); ! if (windowid != NULL) ! { ! FILE *fd = popen("scrsize", "rt"); ! if (fd != NULL) ! { ! int w, h; ! fscanf(fd, "%i %i", &w, &h); ! if (w > 0 && h > 0) ! { ! sys_width = w; ! sys_height = h; ! } ! pclose(fd); ! } ! } } ! #else ! #ifdef TIOCGWINSZ { ! struct winsize w; ! if (ioctl(2, TIOCGWINSZ, &w) == 0) ! { ! if (w.ws_row > 0) ! sys_height = w.ws_row; ! if (w.ws_col > 0) ! sys_width = w.ws_col; ! } } ! #else ! #ifdef WIOCGETD { ! struct uwdata w; ! if (ioctl(2, WIOCGETD, &w) == 0) ! { ! if (w.uw_height > 0) ! sys_height = w.uw_height / w.uw_vs; ! if (w.uw_width > 0) ! sys_width = w.uw_width / w.uw_hs; ! } } ! #endif ! #endif ! #endif ! #endif ! #endif ! #endif ! if (sys_height > 0) ! sc_height = sys_height; ! else if ((s = lgetenv("LINES")) != NULL) ! sc_height = atoi(s); ! #if !MSDOS_COMPILER ! else if ((n = ltgetnum("li")) > 0) ! sc_height = n; ! #endif ! else ! sc_height = DEF_SC_HEIGHT; ! if (sys_width > 0) ! sc_width = sys_width; ! else if ((s = lgetenv("COLUMNS")) != NULL) ! sc_width = atoi(s); ! #if !MSDOS_COMPILER ! else if ((n = ltgetnum("co")) > 0) ! sc_width = n; ! #endif ! else ! sc_width = DEF_SC_WIDTH; ! } ! #if MSDOS_COMPILER==MSOFTC ! /* ! * Figure out how many empty loops it takes to delay a millisecond. ! */ ! static void ! get_clock() ! { ! clock_t start; ! /* ! * Get synchronized at the start of a tick. */ ! start = clock(); ! while (clock() == start) ! ; ! /* ! * Now count loops till the next tick. ! */ ! start = clock(); ! msec_loops = 0; ! while (clock() == start) ! msec_loops++; ! /* ! * Convert from (loops per clock) to (loops per millisecond). ! */ ! msec_loops *= CLOCKS_PER_SEC; ! msec_loops /= 1000; } ! /* ! * Delay for a specified number of milliseconds. ! */ static void ! dummy_func() { ! static long delay_dummy = 0; ! delay_dummy++; } + + static void + delay(msec) + int msec; + { + long i; + + while (msec-- > 0) + { + for (i = 0; i < msec_loops; i++) + { + /* + * Make it look like we're doing something here, + * so the optimizer doesn't remove the whole loop. + */ + dummy_func(); + } + } + } #endif /* + * Return the characters actually input by a "special" key. + */ + public char * + special_key_str(key) + int key; + { + static char tbuf[40]; + char *s; + #if MSDOS_COMPILER || OS2 + static char k_right[] = { '\340', PCK_RIGHT, 0 }; + static char k_left[] = { '\340', PCK_LEFT, 0 }; + static char k_ctl_right[] = { '\340', PCK_CTL_RIGHT, 0 }; + static char k_ctl_left[] = { '\340', PCK_CTL_LEFT, 0 }; + static char k_insert[] = { '\340', PCK_INSERT, 0 }; + static char k_delete[] = { '\340', PCK_DELETE, 0 }; + static char k_ctl_delete[] = { '\340', PCK_CTL_DELETE, 0 }; + static char k_ctl_backspace[] = { '\177', 0 }; + static char k_home[] = { '\340', PCK_HOME, 0 }; + static char k_end[] = { '\340', PCK_END, 0 }; + static char k_up[] = { '\340', PCK_UP, 0 }; + static char k_down[] = { '\340', PCK_DOWN, 0 }; + static char k_backtab[] = { '\340', PCK_SHIFT_TAB, 0 }; + static char k_pagedown[] = { '\340', PCK_PAGEDOWN, 0 }; + static char k_pageup[] = { '\340', PCK_PAGEUP, 0 }; + static char k_f1[] = { '\340', PCK_F1, 0 }; + #endif + #if !MSDOS_COMPILER + char *sp = tbuf; + #endif + + switch (key) + { + #if OS2 + /* + * If windowid is not NULL, assume less is executed in + * the XFree86 environment. + */ + case SK_RIGHT_ARROW: + s = windowid ? ltgetstr("kr", &sp) : k_right; + break; + case SK_LEFT_ARROW: + s = windowid ? ltgetstr("kl", &sp) : k_left; + break; + case SK_UP_ARROW: + s = windowid ? ltgetstr("ku", &sp) : k_up; + break; + case SK_DOWN_ARROW: + s = windowid ? ltgetstr("kd", &sp) : k_down; + break; + case SK_PAGE_UP: + s = windowid ? ltgetstr("kP", &sp) : k_pageup; + break; + case SK_PAGE_DOWN: + s = windowid ? ltgetstr("kN", &sp) : k_pagedown; + break; + case SK_HOME: + s = windowid ? ltgetstr("kh", &sp) : k_home; + break; + case SK_END: + s = windowid ? ltgetstr("@7", &sp) : k_end; + break; + case SK_DELETE: + if (windowid) + { + s = ltgetstr("kD", &sp); + if (s == NULL) + { + tbuf[0] = '\177'; + tbuf[1] = '\0'; + s = tbuf; + } + } else + s = k_delete; + break; + #endif + #if MSDOS_COMPILER + case SK_RIGHT_ARROW: + s = k_right; + break; + case SK_LEFT_ARROW: + s = k_left; + break; + case SK_UP_ARROW: + s = k_up; + break; + case SK_DOWN_ARROW: + s = k_down; + break; + case SK_PAGE_UP: + s = k_pageup; + break; + case SK_PAGE_DOWN: + s = k_pagedown; + break; + case SK_HOME: + s = k_home; + break; + case SK_END: + s = k_end; + break; + case SK_DELETE: + s = k_delete; + break; + #endif + #if MSDOS_COMPILER || OS2 + case SK_INSERT: + s = k_insert; + break; + case SK_CTL_LEFT_ARROW: + s = k_ctl_left; + break; + case SK_CTL_RIGHT_ARROW: + s = k_ctl_right; + break; + case SK_CTL_BACKSPACE: + s = k_ctl_backspace; + break; + case SK_CTL_DELETE: + s = k_ctl_delete; + break; + case SK_F1: + s = k_f1; + break; + case SK_BACKTAB: + s = k_backtab; + break; + #else + case SK_RIGHT_ARROW: + s = ltgetstr("kr", &sp); + break; + case SK_LEFT_ARROW: + s = ltgetstr("kl", &sp); + break; + case SK_UP_ARROW: + s = ltgetstr("ku", &sp); + break; + case SK_DOWN_ARROW: + s = ltgetstr("kd", &sp); + break; + case SK_PAGE_UP: + s = ltgetstr("kP", &sp); + break; + case SK_PAGE_DOWN: + s = ltgetstr("kN", &sp); + break; + case SK_HOME: + s = ltgetstr("kh", &sp); + break; + case SK_END: + s = ltgetstr("@7", &sp); + break; + case SK_DELETE: + s = ltgetstr("kD", &sp); + if (s == NULL) + { + tbuf[0] = '\177'; + tbuf[1] = '\0'; + s = tbuf; + } + break; + #endif + case SK_CONTROL_K: + tbuf[0] = CONTROL('K'); + tbuf[1] = '\0'; + s = tbuf; + break; + default: + return (NULL); + } + return (s); + } + + /* * Get terminal capabilities via termcap. */ public void get_term() { + #if MSDOS_COMPILER + auto_wrap = 1; + ignaw = 0; + can_goto_line = 1; + clear_bg = 1; + /* + * Set up default colors. + * The xx_s_width and xx_e_width vars are already initialized to 0. + */ + #if MSDOS_COMPILER==MSOFTC + sy_bg_color = _getbkcolor(); + sy_fg_color = _gettextcolor(); + get_clock(); + #else + #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC + { + struct text_info w; + gettextinfo(&w); + sy_bg_color = (w.attribute >> 4) & 0x0F; + sy_fg_color = (w.attribute >> 0) & 0x0F; + } + #else + #if MSDOS_COMPILER==WIN32C + { + DWORD nread; + CONSOLE_SCREEN_BUFFER_INFO scr; + + con_out_save = con_out = GetStdHandle(STD_OUTPUT_HANDLE); + /* + * Always open stdin in binary. Note this *must* be done + * before any file operations have been done on fd0. + */ + SET_BINARY(0); + GetConsoleScreenBufferInfo(con_out, &scr); + ReadConsoleOutputAttribute(con_out, &curr_attr, + 1, scr.dwCursorPosition, &nread); + sy_bg_color = (curr_attr & BG_COLORS) >> 4; /* normalize */ + sy_fg_color = curr_attr & FG_COLORS; + } + #endif + #endif + #endif + nm_fg_color = sy_fg_color; + nm_bg_color = sy_bg_color; + bo_fg_color = 11; + bo_bg_color = 0; + ul_fg_color = 9; + ul_bg_color = 0; + so_fg_color = 15; + so_bg_color = 9; + bl_fg_color = 15; + bl_bg_color = 0; + + /* + * Get size of the screen. + */ + scrsize(); + pos_init(); + + + #else /* !MSDOS_COMPILER */ + char *sp; register char *t1, *t2; char *term; ! char termbuf[TERMBUF_SIZE]; ! static char sbuf[TERMSBUF_SIZE]; ! #if OS2 /* * Make sure the termcap database is available. */ ! sp = lgetenv("TERMCAP"); if (sp == NULL || *sp == '\0') { char *termcap; *************** *** 685,723 **** /* * Find out what kind of terminal this is. */ ! if ((term = getenv("TERM")) == NULL) term = DEFAULT_TERM; if (tgetent(termbuf, term) <= 0) ! strcpy(termbuf, "dumb:hc:"); - hard = tgetflag("hc"); - /* * Get size of the screen. */ scrsize(); pos_init(); ! #if DEBUG ! if (strncmp(term,"LESSDEBUG",9) == 0) ! { ! get_debug_term(); ! return; ! } ! #endif /* DEBUG */ - auto_wrap = tgetflag("am"); - ignaw = tgetflag("xn"); - above_mem = tgetflag("da"); - below_mem = tgetflag("db"); - /* * Assumes termcap variable "sg" is the printing width of: * the standout sequence, the end standout sequence, * the underline sequence, the end underline sequence, * the boldface sequence, and the end boldface sequence. */ ! if ((so_s_width = tgetnum("sg")) < 0) so_s_width = 0; so_e_width = so_s_width; --- 1118,1150 ---- /* * Find out what kind of terminal this is. */ ! if ((term = lgetenv("TERM")) == NULL) term = DEFAULT_TERM; + hardcopy = 0; if (tgetent(termbuf, term) <= 0) ! hardcopy = 1; ! if (ltgetflag("hc")) ! hardcopy = 1; /* * Get size of the screen. */ scrsize(); pos_init(); ! auto_wrap = ltgetflag("am"); ! ignaw = ltgetflag("xn"); ! above_mem = ltgetflag("da"); ! below_mem = ltgetflag("db"); ! clear_bg = ltgetflag("ut"); /* * Assumes termcap variable "sg" is the printing width of: * the standout sequence, the end standout sequence, * the underline sequence, the end underline sequence, * the boldface sequence, and the end boldface sequence. */ ! if ((so_s_width = ltgetnum("sg")) < 0) so_s_width = 0; so_e_width = so_s_width; *************** *** 743,792 **** sp = sbuf; #if HAVE_OSPEED ! sc_pad = tgetstr("pc", &sp); if (sc_pad != NULL) PC = *sc_pad; #endif ! sc_s_keypad = tgetstr("ks", &sp); if (sc_s_keypad == NULL) sc_s_keypad = ""; ! sc_e_keypad = tgetstr("ke", &sp); if (sc_e_keypad == NULL) sc_e_keypad = ""; ! sc_init = tgetstr("ti", &sp); if (sc_init == NULL) sc_init = ""; ! sc_deinit= tgetstr("te", &sp); if (sc_deinit == NULL) sc_deinit = ""; ! sc_eol_clear = tgetstr("ce", &sp); ! if (hard || sc_eol_clear == NULL || *sc_eol_clear == '\0') { ! cannot("clear to end of line"); sc_eol_clear = ""; } ! sc_eos_clear = tgetstr("cd", &sp); ! if (below_mem && ! (hard || sc_eos_clear == NULL || *sc_eos_clear == '\0')) { ! cannot("clear to end of screen"); sc_eol_clear = ""; } ! sc_clear = tgetstr("cl", &sp); ! if (hard || sc_clear == NULL || *sc_clear == '\0') { ! cannot("clear screen"); sc_clear = "\n\n"; } ! sc_move = tgetstr("cm", &sp); ! if (hard || sc_move == NULL || *sc_move == '\0') { /* * This is not an error here, because we don't --- 1170,1218 ---- sp = sbuf; #if HAVE_OSPEED ! sc_pad = ltgetstr("pc", &sp); if (sc_pad != NULL) PC = *sc_pad; #endif ! sc_s_keypad = ltgetstr("ks", &sp); if (sc_s_keypad == NULL) sc_s_keypad = ""; ! sc_e_keypad = ltgetstr("ke", &sp); if (sc_e_keypad == NULL) sc_e_keypad = ""; ! sc_init = ltgetstr("ti", &sp); if (sc_init == NULL) sc_init = ""; ! sc_deinit= ltgetstr("te", &sp); if (sc_deinit == NULL) sc_deinit = ""; ! sc_eol_clear = ltgetstr("ce", &sp); ! if (sc_eol_clear == NULL || *sc_eol_clear == '\0') { ! missing_cap = 1; sc_eol_clear = ""; } ! sc_eos_clear = ltgetstr("cd", &sp); ! if (below_mem && (sc_eos_clear == NULL || *sc_eos_clear == '\0')) { ! missing_cap = 1; sc_eol_clear = ""; } ! sc_clear = ltgetstr("cl", &sp); ! if (sc_clear == NULL || *sc_clear == '\0') { ! missing_cap = 1; sc_clear = "\n\n"; } ! sc_move = ltgetstr("cm", &sp); ! if (sc_move == NULL || *sc_move == '\0') { /* * This is not an error here, because we don't *************** *** 798,852 **** } else can_goto_line = 1; ! sc_s_in = tgetstr("so", &sp); ! if (hard || sc_s_in == NULL) ! sc_s_in = ""; ! sc_s_out = tgetstr("se", &sp); ! if (hard || sc_s_out == NULL) ! sc_s_out = ""; ! ! sc_u_in = tgetstr("us", &sp); ! if (hard || sc_u_in == NULL) ! sc_u_in = sc_s_in; ! ! sc_u_out = tgetstr("ue", &sp); ! if (hard || sc_u_out == NULL) ! sc_u_out = sc_s_out; ! ! sc_b_in = tgetstr("md", &sp); ! if (hard || sc_b_in == NULL) ! { ! sc_b_in = sc_s_in; ! sc_b_out = sc_s_out; ! } else ! { ! sc_b_out = tgetstr("me", &sp); ! if (hard || sc_b_out == NULL) ! sc_b_out = ""; ! } ! ! sc_bl_in = tgetstr("mb", &sp); ! if (hard || sc_bl_in == NULL) ! { ! sc_bl_in = sc_s_in; ! sc_bl_out = sc_s_out; ! } else ! { ! sc_bl_out = tgetstr("me", &sp); ! if (hard || sc_bl_out == NULL) ! sc_bl_out = ""; ! } ! ! sc_visual_bell = tgetstr("vb", &sp); ! if (hard || sc_visual_bell == NULL) sc_visual_bell = ""; ! if (tgetflag("bs")) sc_backspace = "\b"; else { ! sc_backspace = tgetstr("bc", &sp); if (sc_backspace == NULL || *sc_backspace == '\0') sc_backspace = "\b"; } --- 1224,1243 ---- } else can_goto_line = 1; ! tmodes("so", "se", &sc_s_in, &sc_s_out, "", "", &sp); ! tmodes("us", "ue", &sc_u_in, &sc_u_out, sc_s_in, sc_s_out, &sp); ! tmodes("md", "me", &sc_b_in, &sc_b_out, sc_s_in, sc_s_out, &sp); ! tmodes("mb", "me", &sc_bl_in, &sc_bl_out, sc_s_in, sc_s_out, &sp); ! sc_visual_bell = ltgetstr("vb", &sp); ! if (sc_visual_bell == NULL) sc_visual_bell = ""; ! if (ltgetflag("bs")) sc_backspace = "\b"; else { ! sc_backspace = ltgetstr("bc", &sp); if (sc_backspace == NULL || *sc_backspace == '\0') sc_backspace = "\b"; } *************** *** 855,862 **** * Choose between using "ho" and "cm" ("home" and "cursor move") * to move the cursor to the upper left corner of the screen. */ ! t1 = tgetstr("ho", &sp); ! if (hard || t1 == NULL) t1 = ""; if (*sc_move == '\0') t2 = ""; --- 1246,1253 ---- * Choose between using "ho" and "cm" ("home" and "cursor move") * to move the cursor to the upper left corner of the screen. */ ! t1 = ltgetstr("ho", &sp); ! if (t1 == NULL) t1 = ""; if (*sc_move == '\0') t2 = ""; *************** *** 866,879 **** t2 = sp; sp += strlen(sp) + 1; } ! sc_home = cheaper(t1, t2, "home cursor", "|\b^"); /* * Choose between using "ll" and "cm" ("lower left" and "cursor move") * to move the cursor to the lower left corner of the screen. */ ! t1 = tgetstr("ll", &sp); ! if (hard || t1 == NULL) t1 = ""; if (*sc_move == '\0') t2 = ""; --- 1257,1270 ---- t2 = sp; sp += strlen(sp) + 1; } ! sc_home = cheaper(t1, t2, "|\b^"); /* * Choose between using "ll" and "cm" ("lower left" and "cursor move") * to move the cursor to the lower left corner of the screen. */ ! t1 = ltgetstr("ll", &sp); ! if (t1 == NULL) t1 = ""; if (*sc_move == '\0') t2 = ""; *************** *** 883,900 **** t2 = sp; sp += strlen(sp) + 1; } ! sc_lower_left = cheaper(t1, t2, ! "move cursor to lower left of screen", "\r"); /* * Choose between using "al" or "sr" ("add line" or "scroll reverse") * to add a line at the top of the screen. */ ! t1 = tgetstr("al", &sp); ! if (hard || t1 == NULL) t1 = ""; ! t2 = tgetstr("sr", &sp); ! if (hard || t2 == NULL) t2 = ""; #if OS2 if (*t1 == '\0' && *t2 == '\0') --- 1274,1290 ---- t2 = sp; sp += strlen(sp) + 1; } ! sc_lower_left = cheaper(t1, t2, "\r"); /* * Choose between using "al" or "sr" ("add line" or "scroll reverse") * to add a line at the top of the screen. */ ! t1 = ltgetstr("al", &sp); ! if (t1 == NULL) t1 = ""; ! t2 = ltgetstr("sr", &sp); ! if (t2 == NULL) t2 = ""; #if OS2 if (*t1 == '\0' && *t2 == '\0') *************** *** 904,919 **** if (above_mem) sc_addline = t1; else ! sc_addline = cheaper(t1, t2, "scroll backwards", ""); if (*sc_addline == '\0') { /* * Force repaint on any backward movement. */ ! back_scroll = 0; } } /* * Return the cost of displaying a termcap string. * We use the trick of calling tputs, but as a char printing function --- 1294,1311 ---- if (above_mem) sc_addline = t1; else ! sc_addline = cheaper(t1, t2, ""); if (*sc_addline == '\0') { /* * Force repaint on any backward movement. */ ! no_back_scroll = 1; } + #endif /* MSDOS_COMPILER */ } + #if !MSDOS_COMPILER /* * Return the cost of displaying a termcap string. * We use the trick of calling tputs, but as a char printing function *************** *** 947,960 **** * cost (see cost() function). */ static char * ! cheaper(t1, t2, doit, def) char *t1, *t2; - char *doit; char *def; { if (*t1 == '\0' && *t2 == '\0') { ! cannot(doit); return (def); } if (*t1 == '\0') --- 1339,1351 ---- * cost (see cost() function). */ static char * ! cheaper(t1, t2, def) char *t1, *t2; char *def; { if (*t1 == '\0' && *t2 == '\0') { ! missing_cap = 1; return (def); } if (*t1 == '\0') *************** *** 966,988 **** return (t2); } /* * Below are the functions which perform all the * terminal-specific screen manipulation. */ /* * Initialize terminal */ public void init() { ! if (no_init) ! return; ! tputs(sc_init, sc_height, putchr); ! tputs(sc_s_keypad, sc_height, putchr); init_done = 1; } --- 1357,1518 ---- return (t2); } + static void + tmodes(incap, outcap, instr, outstr, def_instr, def_outstr, spp) + char *incap; + char *outcap; + char **instr; + char **outstr; + char *def_instr; + char *def_outstr; + char **spp; + { + *instr = ltgetstr(incap, spp); + if (*instr == NULL) + { + /* Use defaults. */ + *instr = def_instr; + *outstr = def_outstr; + return; + } + *outstr = ltgetstr(outcap, spp); + if (*outstr == NULL) + /* No specific out capability; use "me". */ + *outstr = ltgetstr("me", spp); + if (*outstr == NULL) + /* Don't even have "me"; use a null string. */ + *outstr = ""; + } + + #endif /* MSDOS_COMPILER */ + + /* * Below are the functions which perform all the * terminal-specific screen manipulation. */ + #if MSDOS_COMPILER + + #if MSDOS_COMPILER==WIN32C + static void + _settextposition(int row, int col) + { + COORD cpos; + CONSOLE_SCREEN_BUFFER_INFO csbi; + + GetConsoleScreenBufferInfo(con_out, &csbi); + cpos.X = csbi.srWindow.Left + (col - 1); + cpos.Y = csbi.srWindow.Top + (row - 1); + SetConsoleCursorPosition(con_out, cpos); + } + #endif + /* + * Initialize the screen to the correct color at startup. + */ + static void + initcolor() + { + SETCOLORS(nm_fg_color, nm_bg_color); + #if 0 + /* + * This clears the screen at startup. This is different from + * the behavior of other versions of less. Disable it for now. + */ + char *blanks; + int row; + int col; + + /* + * Create a complete, blank screen using "normal" colors. + */ + SETCOLORS(nm_fg_color, nm_bg_color); + blanks = (char *) ecalloc(width+1, sizeof(char)); + for (col = 0; col < sc_width; col++) + blanks[col] = ' '; + blanks[sc_width] = '\0'; + for (row = 0; row < sc_height; row++) + _outtext(blanks); + free(blanks); + #endif + } + #endif + + #if MSDOS_COMPILER==WIN32C + + /* + * Termcap-like init with a private win32 console. + */ + static void + win32_init_term() + { + CONSOLE_SCREEN_BUFFER_INFO scr; + COORD size; + + if (con_out_save == INVALID_HANDLE_VALUE) + return; + + GetConsoleScreenBufferInfo(con_out_save, &scr); + + if (con_out_ours == INVALID_HANDLE_VALUE) + { + /* + * Create our own screen buffer, so that we + * may restore the original when done. + */ + con_out_ours = CreateConsoleScreenBuffer( + GENERIC_WRITE | GENERIC_READ, + FILE_SHARE_WRITE | FILE_SHARE_READ, + (LPSECURITY_ATTRIBUTES) NULL, + CONSOLE_TEXTMODE_BUFFER, + (LPVOID) NULL); + } + + size.X = scr.srWindow.Right - scr.srWindow.Left + 1; + size.Y = scr.srWindow.Bottom - scr.srWindow.Top + 1; + SetConsoleScreenBufferSize(con_out_ours, size); + SetConsoleActiveScreenBuffer(con_out_ours); + con_out = con_out_ours; + } + + /* + * Restore the startup console. + */ + static void + win32_deinit_term() + { + if (con_out_save == INVALID_HANDLE_VALUE) + return; + if (quitting) + (void) CloseHandle(con_out_ours); + SetConsoleActiveScreenBuffer(con_out_save); + con_out = con_out_save; + } + + #endif + + /* * Initialize terminal */ public void init() { ! #if !MSDOS_COMPILER ! if (!no_init) ! tputs(sc_init, sc_height, putchr); ! if (!no_keypad) ! tputs(sc_s_keypad, sc_height, putchr); ! #else ! #if MSDOS_COMPILER==WIN32C ! if (!no_init) ! win32_init_term(); ! #endif ! initcolor(); ! flush(); ! #endif init_done = 1; } *************** *** 992,1003 **** public void deinit() { - if (no_init) - return; if (!init_done) return; ! tputs(sc_e_keypad, sc_height, putchr); ! tputs(sc_deinit, sc_height, putchr); init_done = 0; } --- 1522,1545 ---- public void deinit() { if (!init_done) return; ! #if !MSDOS_COMPILER ! if (!no_keypad) ! tputs(sc_e_keypad, sc_height, putchr); ! if (!no_init) ! tputs(sc_deinit, sc_height, putchr); ! #else ! /* Restore system colors. */ ! SETCOLORS(sy_fg_color, sy_bg_color); ! #if MSDOS_COMPILER==WIN32C ! if (!no_init) ! win32_deinit_term(); ! #else ! /* Need clreol to make SETCOLORS take effect. */ ! clreol(); ! #endif ! #endif init_done = 0; } *************** *** 1007,1013 **** --- 1549,1560 ---- public void home() { + #if !MSDOS_COMPILER tputs(sc_home, 1, putchr); + #else + flush(); + _settextposition(1,1); + #endif } /* *************** *** 1017,1058 **** public void add_line() { tputs(sc_addline, sc_height, putchr); } /* * Move cursor to lower left corner of screen. */ public void lower_left() { tputs(sc_lower_left, 1, putchr); } /* * Goto a specific line on the screen. */ public void goto_line(slinenum) int slinenum; { ! char *sc_goto; ! ! sc_goto = tgoto(sc_move, 0, slinenum); ! tputs(sc_goto, 1, putchr); } /* ! * Ring the terminal bell. */ ! public void ! bell() { ! if (quiet == VERY_QUIET) ! vbell(); ! else ! putchr('\7'); } /* * Output the "visual bell", if there is one. --- 1564,1894 ---- public void add_line() { + #if !MSDOS_COMPILER tputs(sc_addline, sc_height, putchr); + #else + flush(); + #if MSDOS_COMPILER==MSOFTC + _scrolltextwindow(_GSCROLLDOWN); + _settextposition(1,1); + #else + #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC + movetext(1,1, sc_width,sc_height-1, 1,2); + gotoxy(1,1); + clreol(); + #else + #if MSDOS_COMPILER==WIN32C + { + CHAR_INFO fillchar; + SMALL_RECT rcSrc, rcClip; + COORD new_org; + CONSOLE_SCREEN_BUFFER_INFO csbi; + + GetConsoleScreenBufferInfo(con_out,&csbi); + + /* The clip rectangle is the entire visible screen. */ + rcClip.Left = csbi.srWindow.Left; + rcClip.Top = csbi.srWindow.Top; + rcClip.Right = csbi.srWindow.Right; + rcClip.Bottom = csbi.srWindow.Bottom; + + /* The source rectangle is the visible screen minus the last line. */ + rcSrc = rcClip; + rcSrc.Bottom--; + + /* Move the top left corner of the source window down one row. */ + new_org.X = rcSrc.Left; + new_org.Y = rcSrc.Top + 1; + + /* Fill the right character and attributes. */ + fillchar.Char.AsciiChar = ' '; + curr_attr = MAKEATTR(nm_fg_color, nm_bg_color); + fillchar.Attributes = curr_attr; + ScrollConsoleScreenBuffer(con_out, &rcSrc, &rcClip, new_org, &fillchar); + _settextposition(1,1); + } + #endif + #endif + #endif + #endif } + #if 0 /* + * Remove the n topmost lines and scroll everything below it in the + * window upward. This is needed to stop leaking the topmost line + * into the scrollback buffer when we go down-one-line (in WIN32). + */ + public void + remove_top(n) + int n; + { + #if MSDOS_COMPILER==WIN32C + SMALL_RECT rcSrc, rcClip; + CHAR_INFO fillchar; + COORD new_org; + CONSOLE_SCREEN_BUFFER_INFO csbi; /* to get buffer info */ + + if (n >= sc_height - 1) + { + clear(); + home(); + return; + } + + flush(); + + GetConsoleScreenBufferInfo(con_out, &csbi); + + /* Get the extent of all-visible-rows-but-the-last. */ + rcSrc.Left = csbi.srWindow.Left; + rcSrc.Top = csbi.srWindow.Top + n; + rcSrc.Right = csbi.srWindow.Right; + rcSrc.Bottom = csbi.srWindow.Bottom; + + /* Get the clip rectangle. */ + rcClip.Left = rcSrc.Left; + rcClip.Top = csbi.srWindow.Top; + rcClip.Right = rcSrc.Right; + rcClip.Bottom = rcSrc.Bottom ; + + /* Move the source window up n rows. */ + new_org.X = rcSrc.Left; + new_org.Y = rcSrc.Top - n; + + /* Fill the right character and attributes. */ + fillchar.Char.AsciiChar = ' '; + curr_attr = MAKEATTR(nm_fg_color, nm_bg_color); + fillchar.Attributes = curr_attr; + + ScrollConsoleScreenBuffer(con_out, &rcSrc, &rcClip, new_org, &fillchar); + + /* Position cursor on first blank line. */ + goto_line(sc_height - n - 1); + #endif + } + #endif + + #if MSDOS_COMPILER==WIN32C + /* + * Clear the screen. + */ + static void + win32_clear() + { + /* + * This will clear only the currently visible rows of the NT + * console buffer, which means none of the precious scrollback + * rows are touched making for faster scrolling. Note that, if + * the window has fewer columns than the console buffer (i.e. + * there is a horizontal scrollbar as well), the entire width + * of the visible rows will be cleared. + */ + COORD topleft; + DWORD nchars; + DWORD winsz; + CONSOLE_SCREEN_BUFFER_INFO csbi; + + /* get the number of cells in the current buffer */ + GetConsoleScreenBufferInfo(con_out, &csbi); + winsz = csbi.dwSize.X * (csbi.srWindow.Bottom - csbi.srWindow.Top + 1); + topleft.X = 0; + topleft.Y = csbi.srWindow.Top; + + curr_attr = MAKEATTR(nm_fg_color, nm_bg_color); + FillConsoleOutputCharacter(con_out, ' ', winsz, topleft, &nchars); + FillConsoleOutputAttribute(con_out, curr_attr, winsz, topleft, &nchars); + } + + /* + * Remove the n topmost lines and scroll everything below it in the + * window upward. + */ + public void + win32_scroll_up(n) + int n; + { + SMALL_RECT rcSrc, rcClip; + CHAR_INFO fillchar; + COORD topleft; + COORD new_org; + DWORD nchars; + DWORD size; + CONSOLE_SCREEN_BUFFER_INFO csbi; + + if (n <= 0) + return; + + if (n >= sc_height - 1) + { + win32_clear(); + _settextposition(1,1); + return; + } + + /* Get the extent of what will remain visible after scrolling. */ + GetConsoleScreenBufferInfo(con_out, &csbi); + rcSrc.Left = csbi.srWindow.Left; + rcSrc.Top = csbi.srWindow.Top + n; + rcSrc.Right = csbi.srWindow.Right; + rcSrc.Bottom = csbi.srWindow.Bottom; + + /* Get the clip rectangle. */ + rcClip.Left = rcSrc.Left; + rcClip.Top = csbi.srWindow.Top; + rcClip.Right = rcSrc.Right; + rcClip.Bottom = rcSrc.Bottom ; + + /* Move the source text to the top of the screen. */ + new_org.X = rcSrc.Left; + new_org.Y = 0; + + /* Fill the right character and attributes. */ + fillchar.Char.AsciiChar = ' '; + fillchar.Attributes = MAKEATTR(nm_fg_color, nm_bg_color); + + /* Scroll the window. */ + SetConsoleTextAttribute(con_out, fillchar.Attributes); + ScrollConsoleScreenBuffer(con_out, &rcSrc, &rcClip, new_org, &fillchar); + + /* Clear remaining lines at bottom. */ + topleft.X = csbi.dwCursorPosition.X; + topleft.Y = rcSrc.Bottom - n; + size = (n * csbi.dwSize.X) + (rcSrc.Right - topleft.X); + FillConsoleOutputCharacter(con_out, ' ', size, topleft, + &nchars); + FillConsoleOutputAttribute(con_out, fillchar.Attributes, size, topleft, + &nchars); + SetConsoleTextAttribute(con_out, curr_attr); + + /* Move cursor n lines up from where it was. */ + csbi.dwCursorPosition.Y -= n; + SetConsoleCursorPosition(con_out, csbi.dwCursorPosition); + } + #endif + + /* * Move cursor to lower left corner of screen. */ public void lower_left() { + #if !MSDOS_COMPILER tputs(sc_lower_left, 1, putchr); + #else + flush(); + _settextposition(sc_height, 1); + #endif } /* + * Check if the console size has changed and reset internals + * (in lieu of SIGWINCH for WIN32). + */ + public void + check_winch() + { + #if MSDOS_COMPILER==WIN32C + CONSOLE_SCREEN_BUFFER_INFO scr; + COORD size; + + if (con_out == INVALID_HANDLE_VALUE) + return; + + flush(); + GetConsoleScreenBufferInfo(con_out, &scr); + size.Y = scr.srWindow.Bottom - scr.srWindow.Top + 1; + size.X = scr.srWindow.Right - scr.srWindow.Left + 1; + if (size.Y != sc_height || size.X != sc_width) + { + sc_height = size.Y; + sc_width = size.X; + if (!no_init && con_out_ours == con_out) + SetConsoleScreenBufferSize(con_out, size); + pos_init(); + wscroll = (sc_height + 1) / 2; + screen_trashed = 1; + } + #endif + } + + /* * Goto a specific line on the screen. */ public void goto_line(slinenum) int slinenum; { ! #if !MSDOS_COMPILER ! tputs(tgoto(sc_move, 0, slinenum), 1, putchr); ! #else ! flush(); ! _settextposition(slinenum+1, 1); ! #endif } + #if MSDOS_COMPILER==MSOFTC || MSDOS_COMPILER==BORLANDC /* ! * Create an alternate screen which is all white. ! * This screen is used to create a "flash" effect, by displaying it ! * briefly and then switching back to the normal screen. ! * {{ Yuck! There must be a better way to get a visual bell. }} */ ! static void ! create_flash() { ! #if MSDOS_COMPILER==MSOFTC ! struct videoconfig w; ! char *blanks; ! int row, col; ! ! _getvideoconfig(&w); ! videopages = w.numvideopages; ! if (videopages < 2) ! { ! so_enter(); ! so_exit(); ! } else ! { ! _setactivepage(1); ! so_enter(); ! blanks = (char *) ecalloc(w.numtextcols, sizeof(char)); ! for (col = 0; col < w.numtextcols; col++) ! blanks[col] = ' '; ! for (row = w.numtextrows; row > 0; row--) ! _outmem(blanks, w.numtextcols); ! _setactivepage(0); ! _setvisualpage(0); ! free(blanks); ! so_exit(); ! } ! #else ! #if MSDOS_COMPILER==BORLANDC ! register int n; ! ! whitescreen = (unsigned short *) ! malloc(sc_width * sc_height * sizeof(short)); ! if (whitescreen == NULL) ! return; ! for (n = 0; n < sc_width * sc_height; n++) ! whitescreen[n] = 0x7020; ! #else ! #if MSDOS_COMPILER==WIN32C ! register int n; ! ! whitescreen = (WORD *) ! malloc(sc_height * sc_width * sizeof(WORD)); ! if (whitescreen == NULL) ! return; ! /* Invert the standard colors. */ ! for (n = 0; n < sc_width * sc_height; n++) ! whitescreen[n] = (WORD)((nm_fg_color << 4) | nm_bg_color); ! #endif ! #endif ! #endif ! flash_created = 1; } + #endif /* MSDOS_COMPILER */ /* * Output the "visual bell", if there is one. *************** *** 1060,1077 **** --- 1896,2004 ---- public void vbell() { + #if !MSDOS_COMPILER if (*sc_visual_bell == '\0') return; tputs(sc_visual_bell, sc_height, putchr); + #else + #if MSDOS_COMPILER==DJGPPC + ScreenVisualBell(); + #else + #if MSDOS_COMPILER==MSOFTC + /* + * Create a flash screen on the second video page. + * Switch to that page, then switch back. + */ + if (!flash_created) + create_flash(); + if (videopages < 2) + return; + _setvisualpage(1); + delay(100); + _setvisualpage(0); + #else + #if MSDOS_COMPILER==BORLANDC + unsigned short *currscreen; + + /* + * Get a copy of the current screen. + * Display the flash screen. + * Then restore the old screen. + */ + if (!flash_created) + create_flash(); + if (whitescreen == NULL) + return; + currscreen = (unsigned short *) + malloc(sc_width * sc_height * sizeof(short)); + if (currscreen == NULL) return; + gettext(1, 1, sc_width, sc_height, currscreen); + puttext(1, 1, sc_width, sc_height, whitescreen); + delay(100); + puttext(1, 1, sc_width, sc_height, currscreen); + free(currscreen); + #else + #if MSDOS_COMPILER==WIN32C + /* paint screen with an inverse color */ + clear(); + + /* leave it displayed for 100 msec. */ + Sleep(100); + + /* restore with a redraw */ + repaint(); + #endif + #endif + #endif + #endif + #endif } /* + * Make a noise. + */ + static void + beep() + { + #if !MSDOS_COMPILER + putchr(CONTROL('G')); + #else + #if MSDOS_COMPILER==WIN32C + MessageBeep(0); + #else + write(1, "\7", 1); + #endif + #endif + } + + /* + * Ring the terminal bell. + */ + public void + bell() + { + if (quiet == VERY_QUIET) + vbell(); + else + beep(); + } + + /* * Clear the screen. */ public void clear() { + #if !MSDOS_COMPILER tputs(sc_clear, sc_height, putchr); + #else + flush(); + #if MSDOS_COMPILER==WIN32C + win32_clear(); + #else + _clearscreen(_GCLEARSCREEN); + #endif + #endif } /* *************** *** 1081,1101 **** public void clear_eol() { tputs(sc_eol_clear, 1, putchr); } /* * Clear the bottom line of the display. * Leave the cursor at the beginning of the bottom line. */ public void clear_bot() { lower_left(); ! if (below_mem) ! tputs(sc_eos_clear, 1, putchr); ! else ! tputs(sc_eol_clear, 1, putchr); } /* --- 2008,2121 ---- public void clear_eol() { + #if !MSDOS_COMPILER tputs(sc_eol_clear, 1, putchr); + #else + #if MSDOS_COMPILER==MSOFTC + short top, left; + short bot, right; + struct rccoord tpos; + + flush(); + /* + * Save current state. + */ + tpos = _gettextposition(); + _gettextwindow(&top, &left, &bot, &right); + /* + * Set a temporary window to the current line, + * from the cursor's position to the right edge of the screen. + * Then clear that window. + */ + _settextwindow(tpos.row, tpos.col, tpos.row, sc_width); + _clearscreen(_GWINDOW); + /* + * Restore state. + */ + _settextwindow(top, left, bot, right); + _settextposition(tpos.row, tpos.col); + #else + #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC + flush(); + clreol(); + #else + #if MSDOS_COMPILER==WIN32C + DWORD nchars; + COORD cpos; + CONSOLE_SCREEN_BUFFER_INFO scr; + + flush(); + memset(&scr, 0, sizeof(scr)); + GetConsoleScreenBufferInfo(con_out, &scr); + cpos.X = scr.dwCursorPosition.X; + cpos.Y = scr.dwCursorPosition.Y; + curr_attr = MAKEATTR(nm_fg_color, nm_bg_color); + FillConsoleOutputAttribute(con_out, curr_attr, + scr.dwSize.X - cpos.X, cpos, &nchars); + FillConsoleOutputCharacter(con_out, ' ', + scr.dwSize.X - cpos.X, cpos, &nchars); + #endif + #endif + #endif + #endif } /* + * Clear the current line. + * Clear the screen if there's off-screen memory below the display. + */ + static void + clear_eol_bot() + { + #if MSDOS_COMPILER + clear_eol(); + #else + if (below_mem) + tputs(sc_eos_clear, 1, putchr); + else + tputs(sc_eol_clear, 1, putchr); + #endif + } + + /* * Clear the bottom line of the display. * Leave the cursor at the beginning of the bottom line. */ public void clear_bot() { + /* + * If we're in a non-normal attribute mode, temporarily exit + * the mode while we do the clear. Some terminals fill the + * cleared area with the current attribute. + */ lower_left(); ! switch (attrmode) ! { ! case AT_STANDOUT: ! so_exit(); ! clear_eol_bot(); ! so_enter(); ! break; ! case AT_UNDERLINE: ! ul_exit(); ! clear_eol_bot(); ! ul_enter(); ! break; ! case AT_BOLD: ! bo_exit(); ! clear_eol_bot(); ! bo_enter(); ! break; ! case AT_BLINK: ! bl_exit(); ! clear_eol_bot(); ! bl_enter(); ! break; ! default: ! clear_eol_bot(); ! break; ! } } /* *************** *** 1104,1110 **** --- 2124,2136 ---- public void so_enter() { + #if !MSDOS_COMPILER tputs(sc_s_in, 1, putchr); + #else + flush(); + SETCOLORS(so_fg_color, so_bg_color); + #endif + attrmode = AT_STANDOUT; } /* *************** *** 1113,1119 **** --- 2139,2151 ---- public void so_exit() { + #if !MSDOS_COMPILER tputs(sc_s_out, 1, putchr); + #else + flush(); + SETCOLORS(nm_fg_color, nm_bg_color); + #endif + attrmode = AT_NORMAL; } /* *************** *** 1123,1129 **** --- 2155,2167 ---- public void ul_enter() { + #if !MSDOS_COMPILER tputs(sc_u_in, 1, putchr); + #else + flush(); + SETCOLORS(ul_fg_color, ul_bg_color); + #endif + attrmode = AT_UNDERLINE; } /* *************** *** 1132,1138 **** --- 2170,2182 ---- public void ul_exit() { + #if !MSDOS_COMPILER tputs(sc_u_out, 1, putchr); + #else + flush(); + SETCOLORS(nm_fg_color, nm_bg_color); + #endif + attrmode = AT_NORMAL; } /* *************** *** 1141,1147 **** --- 2185,2197 ---- public void bo_enter() { + #if !MSDOS_COMPILER tputs(sc_b_in, 1, putchr); + #else + flush(); + SETCOLORS(bo_fg_color, bo_bg_color); + #endif + attrmode = AT_BOLD; } /* *************** *** 1150,1156 **** --- 2200,2212 ---- public void bo_exit() { + #if !MSDOS_COMPILER tputs(sc_b_out, 1, putchr); + #else + flush(); + SETCOLORS(nm_fg_color, nm_bg_color); + #endif + attrmode = AT_NORMAL; } /* *************** *** 1159,1165 **** --- 2215,2227 ---- public void bl_enter() { + #if !MSDOS_COMPILER tputs(sc_bl_in, 1, putchr); + #else + flush(); + SETCOLORS(bl_fg_color, bl_bg_color); + #endif + attrmode = AT_BLINK; } /* *************** *** 1168,1176 **** --- 2230,2245 ---- public void bl_exit() { + #if !MSDOS_COMPILER tputs(sc_bl_out, 1, putchr); + #else + flush(); + SETCOLORS(nm_fg_color, nm_bg_color); + #endif + attrmode = AT_NORMAL; } + #if 0 /* No longer used */ /* * Erase the character to the left of the cursor * and move the cursor left. *************** *** 1178,1190 **** public void backspace() { /* ! * Try to erase the previous character by overstriking with a space. */ tputs(sc_backspace, 1, putchr); putchr(' '); tputs(sc_backspace, 1, putchr); } /* * Output a plain backspace, without erasing the previous char. --- 2247,2294 ---- public void backspace() { + #if !MSDOS_COMPILER /* ! * Erase the previous character by overstriking with a space. */ tputs(sc_backspace, 1, putchr); putchr(' '); tputs(sc_backspace, 1, putchr); + #else + #if MSDOS_COMPILER==MSOFTC + struct rccoord tpos; + + flush(); + tpos = _gettextposition(); + if (tpos.col <= 1) + return; + _settextposition(tpos.row, tpos.col-1); + _outtext(" "); + _settextposition(tpos.row, tpos.col-1); + #else + #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC + cputs("\b"); + #else + #if MSDOS_COMPILER==WIN32C + COORD cpos; + DWORD cChars; + CONSOLE_SCREEN_BUFFER_INFO scr; + + flush(); + GetConsoleScreenBufferInfo(con_out, &scr); + cpos = scr.dwCursorPosition; + if (cpos.X <= 0) + return; + cpos.X--; + SetConsoleCursorPosition(con_out, cpos); + FillConsoleOutputCharacter(con_out, (TCHAR)' ', 1, cpos, &cChars); + SetConsoleCursorPosition(con_out, cpos); + #endif + #endif + #endif + #endif } + #endif /* 0 */ /* * Output a plain backspace, without erasing the previous char. *************** *** 1192,1196 **** --- 2296,2429 ---- public void putbs() { + #if !MSDOS_COMPILER tputs(sc_backspace, 1, putchr); + #else + int row, col; + + flush(); + { + #if MSDOS_COMPILER==MSOFTC + struct rccoord tpos; + tpos = _gettextposition(); + row = tpos.row; + col = tpos.col; + #else + #if MSDOS_COMPILER==BORLANDC || MSDOS_COMPILER==DJGPPC + row = wherey(); + col = wherex(); + #else + #if MSDOS_COMPILER==WIN32C + CONSOLE_SCREEN_BUFFER_INFO scr; + GetConsoleScreenBufferInfo(con_out, &scr); + row = scr.dwCursorPosition.Y - scr.srWindow.Top + 1; + col = scr.dwCursorPosition.X - scr.srWindow.Left + 1; + #endif + #endif + #endif + } + if (col <= 1) + return; + _settextposition(row, col-1); + #endif /* MSDOS_COMPILER */ } + + #if MSDOS_COMPILER==WIN32C + /* + * Determine whether an input character is waiting to be read. + */ + static int + win32_kbhit(tty) + HANDLE tty; + { + INPUT_RECORD ip; + DWORD read; + + if (keyCount > 0) + return (TRUE); + + currentKey.ascii = 0; + currentKey.scan = 0; + + /* + * Wait for a real key-down event, but + * ignore SHIFT and CONTROL key events. + */ + do + { + PeekConsoleInput(tty, &ip, 1, &read); + if (read == 0) + return (FALSE); + ReadConsoleInput(tty, &ip, 1, &read); + } while (ip.EventType != KEY_EVENT || + ip.Event.KeyEvent.bKeyDown != TRUE || + ip.Event.KeyEvent.wVirtualScanCode == 0 || + ip.Event.KeyEvent.wVirtualKeyCode == VK_SHIFT || + ip.Event.KeyEvent.wVirtualKeyCode == VK_CONTROL || + ip.Event.KeyEvent.wVirtualKeyCode == VK_MENU); + + currentKey.ascii = ip.Event.KeyEvent.uChar.AsciiChar; + currentKey.scan = ip.Event.KeyEvent.wVirtualScanCode; + keyCount = ip.Event.KeyEvent.wRepeatCount; + + if (ip.Event.KeyEvent.dwControlKeyState & + (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)) + { + switch (currentKey.scan) + { + case PCK_ALT_E: /* letter 'E' */ + currentKey.ascii = 0; + break; + } + } else if (ip.Event.KeyEvent.dwControlKeyState & + (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) + { + switch (currentKey.scan) + { + case PCK_RIGHT: /* right arrow */ + currentKey.scan = PCK_CTL_RIGHT; + break; + case PCK_LEFT: /* left arrow */ + currentKey.scan = PCK_CTL_LEFT; + break; + case PCK_DELETE: /* delete */ + currentKey.scan = PCK_CTL_DELETE; + break; + } + } + return (TRUE); + } + + /* + * Read a character from the keyboard. + */ + public char + WIN32getch(tty) + int tty; + { + int ascii; + + if (pending_scancode) + { + pending_scancode = 0; + return ((char)(currentKey.scan & 0x00FF)); + } + + while (win32_kbhit((HANDLE)tty) == FALSE) + { + Sleep(20); + if (ABORT_SIGS()) + return ('\003'); + continue; + } + keyCount --; + ascii = currentKey.ascii; + /* + * On PC's, the extended keys return a 2 byte sequence beginning + * with '00', so if the ascii code is 00, the next byte will be + * the lsb of the scan code. + */ + pending_scancode = (ascii == 0x00); + return ((char)ascii); + } + #endif