Centralize customization in defines.h instead of Makefile + estruct.h.

Makefile

@@ -13,11 +13,6 @@ else
 endif
 export E Q
 
-uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
-# for windows based target, insure we strip the variant part
-# CYGWIN_NT-6.1, CYGWIN_NT-6.1-WOW, CYGWIN_NT-6.1-WOW64, MSYS_NT-10.0-19042
-uname_S := $(shell sh -c 'echo $(uname_S) | sed s/_.*$$//')
-
 PROGRAM=ue
 
 CC=gcc
@@ -25,18 +20,7 @@ WARNINGS=-pedantic -Wall -Wextra -Wstrict-prototypes -Wno-unused-parameter
 CFLAGS=-O2 $(WARNINGS)
 LDFLAGS=-s
 LIBS=-lcurses
-DEFINES=-DAUTOCONF -DPROGRAM=$(PROGRAM) # -DNDEBUG
-ifeq ($(uname_S),Linux)
- DEFINES += -DPOSIX -DUSG
-else ifeq ($(uname_S),CYGWIN)
- DEFINES += -DCYGWIN -DSYSV
-else ifeq ($(uname_S),MSYS)
- DEFINES += -DCYGWIN -DSYSV
-else ifeq ($(uname_S),NetBSD)
- DEFINES += -DPOSIX -DBSD=1
-else
- $(error $(uname_S) needs configuration)
-endif
+DEFINES=-DPROGRAM=$(PROGRAM) -D_GNU_SOURCE # -DNDEBUG
 
 BINDIR=/usr/bin
 LIBDIR=/usr/lib

buffer.c

@@ -1,8 +1,9 @@
 /* buffer.c -- implements buffer.h */
 #include "buffer.h"
 
-/*  Buffer management.  Some of the functions are internal, and some are actually attached to
-    user keys.  Like everyone else, they set hints for the display system.
+/* Buffer management.  Some of the functions are internal, and some are
+   actually attached to user keys.  Like everyone else, they set hints for
+   the display system.
 
     modified by Petri Kutvonen
  */
@@ -11,7 +12,6 @@
 #include <string.h>
 
 #include "defines.h"
-#include "estruct.h"
 #include "file.h"
 #include "input.h"
 #include "mlout.h"

defines.h

@@ -1,17 +1,64 @@
-/* defines.h -- */
+/* defines.h -- customization based on gcc predefined macroes */
 #ifndef __DEFINES_H__
 #define __DEFINES_H__
 
-/* Must define one of
-    USG | BSD
-*/
-#define USG 1
-
-#define PKCODE 1
-#define SCROLLCODE 1   /* scrolling code P.K.                          */
-#define ENVFUNC 1
+#if __unix__
+# define UNIX 1
+# if __NetBSD__
+#  define BSD 1
+#  define POSIX 1
+# elsif __linux__
+#  define USG 1
+#  define SVR4 1	/* locks */
+#  define POSIX 1
+# else	/* __CYGWIN__ */
+#  define USG 1
+//#  define POSIX 1
+# endif
+#else
+# error Missing gcc predefined __unix__
+#endif
 
 #define NSTRING 128     /* # of bytes, string buffers   */
 
+#define TERMCAP 1		/* UNIX */
+#define XONXOFF 1		/* UNIX */
+
+#define VISMAC  0  		/* update display during keyboard macros        */
+
+#define MSDOS	0
+#define IBMPC	MSDOS
+#define COLOR	MSDOS
+#define MEMMAP	IBMPC
+
+
+#define FILOCK (SVR4 | BSD)
+#define ENVFUNC 1		/* only two types so far (USG | BSD) */
+
+#define PKCODE 1		/* include P.K. extensions, define always    */
+#define SCROLLCODE 1	/* scrolling code P.K. */
+
+/*  Dynamic RAM tracking and reporting redefinitions    */
+#define RAMSIZE 0		/* dynamic RAM memory usage tracking */
+#if RAMSIZE
+# define RAMSHOW 1      /* auto dynamic RAM reporting */
+# include <stdlib.h>
+  void *allocate( size_t size) ;
+  void release( void *ptr) ;
+  
+# define    malloc  allocate
+# define    free    release
 #endif
-/* end of defines.h */
+
+/* De-allocate memory always on exit (if the operating system or main
+   program can not
+*/
+#define CLEAN 0			/* de-alloc memory on exit */
+#if CLEAN
+# define exit(a) cexit(a)
+
+  void cexit( int status) ;
+#endif
+
+#endif
+/* end of predefs.h */

display.c

@@ -12,12 +12,13 @@
  */
 
 #include <errno.h>
+#include <locale.h>
 #include <stdarg.h>
 #include <string.h>
 #include <unistd.h>
 
 #include "buffer.h"
-#include "estruct.h"
+#include "defines.h"
 #include "input.h"
 #include "line.h"
 #include "termio.h"
@@ -50,16 +51,16 @@ static video_p *pscreen ;	/* Physical screen. */
 #endif
 
 static int displaying = TRUE ;
-#if UNIX
-# include <signal.h>
-#endif
 
 #ifdef SIGWINCH
 # include <sys/ioctl.h>
 /* for window size changes */
- int chg_width, chg_height ;
+  int chg_width, chg_height ;
+
+  static void sizesignal( int signr) ;
 #endif
 
+
 static int currow ;		/* Cursor row                   */
 static int curcol ;		/* Cursor column                */
 static int vtrow = 0 ;	/* Row location of SW cursor */
@@ -105,6 +106,11 @@ static int newscreensize( int h, int w) ;
    completely redrawn on the first call to "update".
  */
 void vtinit( void) {
+#ifdef SIGWINCH
+	signal( SIGWINCH, sizesignal) ;
+#endif
+
+	setlocale( LC_CTYPE, "") ; /* expects $LANG like en_GB.UTF-8 */
 	TTopen() ;		/* open the screen */
 	TTkopen() ;		/* open the keyboard */
 	TTrev( FALSE) ;
@@ -1404,7 +1410,7 @@ void getscreensize( int *widthp, int *heightp) {
 }
 
 #ifdef SIGWINCH
-void sizesignal( int signr) {
+static void sizesignal( int signr) {
 	int w, h ;
 	int old_errno = errno ;
 

display.h

@@ -4,7 +4,7 @@
 
 #include <stdarg.h>
 
-#include "estruct.h"
+#include "defines.h"		/* UNIX */
 #include "names.h"          /* BINDABLE() */
 #include "utf8.h"           /* unicode_t */
 
@@ -40,8 +40,6 @@ void getscreensize( int *widthp, int *heightp) ;
 # include <signal.h>
 # ifdef SIGWINCH
    extern int chg_width, chg_height ;
-
-   void sizesignal( int signr) ;
 # endif
 #endif
 

estruct.h

@@ -1,135 +0,0 @@
-/* estruct.h -- */
-#ifndef _ESTRUCT_H_
-#define _ESTRUCT_H_
-
-/*  Structure and preprocessor defines
- *
- *  written by Dave G. Conroy
- *  modified by Steve Wilhite, George Jones
- *  substantially modified by Daniel Lawrence
- *  modified by Petri Kutvonen
- */
-
-#ifdef  MSDOS
-# undef MSDOS
-#endif
-
-/* Machine/OS definitions. */
-
-#if defined(AUTOCONF) || defined(BSD) || defined(SYSV)
-
-/* Make an intelligent guess about the target system. */
-
-# if defined(BSD) || defined(sun) || defined(ultrix) || defined(__osf__)
-#  ifndef BSD
-#   define BSD 1 /* Berkeley UNIX */
-#  endif
-# else
-#  define BSD 0
-# endif
-
-# if defined(SVR4) || defined(__linux__)    /* ex. SunOS 5.3 */
-#  define SVR4 1
-#  define SYSV 1
-#  undef BSD
-# endif
-
-# if defined(SYSV) || defined(u3b2) || defined(_AIX) || (defined(i386) && defined(unix)) || defined( __unix__)
-#  define   USG 1 /* System V UNIX */
-# else
-#  define   USG 0
-# endif
-
-#else
-# define BSD    0       /* UNIX BSD 4.2 and ULTRIX      */
-# define USG    1       /* UNIX system V                */
-#endif  /*autoconf || BSD || SYSV */
-
-#define MSDOS   0       /* MS-DOS                       */
-
-/*  Compiler definitions    */
-#ifndef AUTOCONF
-# define UNIX   1       /* a random UNIX compiler */
-#else
-# define UNIX   (BSD | USG)
-#endif  /*autoconf */
-
-/*  Debugging options   */
-
-#define RAMSIZE 0       /* dynamic RAM memory usage tracking */
-#if RAMSIZE
-# define    RAMSHOW 1       /* auto dynamic RAM reporting */
-#endif
-
-#ifndef AUTOCONF
-/*  Terminal Output definitions     */
-# define TERMCAP    0       /* Use TERMCAP                  */
-# define IBMPC      1       /* IBM-PC CGA/MONO/EGA driver   */
-#else
-# define TERMCAP    UNIX
-# define IBMPC      MSDOS
-#endif /* Autoconf. */
-
-/*  Configuration options   */
-
-#define VISMAC  0  /* update display during keyboard macros        */
-
-#ifndef AUTOCONF
-# define    COLOR   1  /* color commands and windows                   */
-# define    FILOCK  0  /* file locking under unix BSD 4.2              */
-#else
-# define    COLOR   MSDOS
-# ifdef  SVR4
-#  define FILOCK  1
-# else
-#  define   FILOCK  BSD
-# endif
-#endif /* Autoconf. */
-
-#define CLEAN   0  /* de-alloc memory on exit                      */
-
-#ifndef AUTOCONF
-# define XONXOFF    0  /* don't disable XON-XOFF flow control P.K.     */
-#else
-# define XONXOFF    UNIX
-#endif /* Autoconf. */
-
-#define PKCODE  1      /* include my extensions P.K., define always    */
-#define SCROLLCODE 1   /* scrolling code P.K.                          */
-
-/* Define some ability flags. */
-
-#if IBMPC
-# define    MEMMAP  1
-#else
-# define    MEMMAP  0
-#endif
-
-#if USG | BSD
-# define ENVFUNC    1
-#else
-# define ENVFUNC    0
-#endif
-
-/*  Dynamic RAM tracking and reporting redefinitions    */
-
-#if RAMSIZE
-# include <stdlib.h>
-  void *allocate( size_t size) ;
-  void release( void *ptr) ;
-# define    malloc  allocate
-# define    free    release
-#endif
-
-/*  De-allocate memory always on exit (if the operating system or
-    main program can not
-*/
-
-#if CLEAN
-# define    exit(a) cexit(a)
-
-  void cexit( int status) ;
-#endif
-
-#endif
-/* end of estruct.h */

eval.c

@@ -15,8 +15,8 @@
 #include "basic.h"
 #include "bind.h"
 #include "buffer.h"
+#include "defines.h"
 #include "display.h"
-#include "estruct.h"
 #include "exec.h"
 #include "execute.h"
 #include "flook.h"

execute.c

@@ -7,12 +7,12 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "estruct.h"
-#include "random.h"
+#include "defines.h"
 #include "display.h"
 #include "file.h"
 #include "input.h"
 #include "mlout.h"
+#include "random.h"
 #include "search.h"
 #include "terminal.h"
 #include "window.h"

file.c

@@ -17,7 +17,6 @@
 #include "buffer.h"
 #include "defines.h"
 #include "display.h"
-#include "estruct.h"
 #include "execute.h"
 #include "fileio.h"
 #include "input.h"

input.c

@@ -13,8 +13,8 @@
 #include <unistd.h>
 
 #include "bind.h"
-#include "estruct.h"
 #include "bindable.h"
+#include "defines.h"
 #include "display.h"	/* rubout(), echos(), echoc(), update() */
 #include "exec.h"
 #include "isa.h"

isearch.c

@@ -27,8 +27,8 @@
 
 #include "basic.h"
 #include "buffer.h"
+#include "defines.h"
 #include "display.h"
-#include "estruct.h"
 #include "exec.h"
 #include "input.h"
 #include "line.h"

line.c

@@ -20,7 +20,7 @@
 #include <string.h>
 
 #include "buffer.h"
-#include "estruct.h"
+#include "defines.h"
 #include "mlout.h"
 #include "utf8.h"
 #include "window.h"

lock.h

@@ -2,7 +2,7 @@
 #ifndef _LOCK_H_
 #define _LOCK_H_
 
-#include "estruct.h"
+#include "defines.h"	/* BSD, SVR4 */
 
 #if BSD | SVR4
 int lockchk( const char *fname) ;

main.c

@@ -62,14 +62,13 @@
  *
  */
 
-#include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "estruct.h"	/* Global structures and defines. */
+#include "defines.h"	/* OS specific customization */
 #if UNIX
-#include <signal.h>
+# include <signal.h>
 #endif
 
 #include "basic.h"
@@ -91,9 +90,8 @@
 #include "window.h"
 
 #if UNIX
-static void emergencyexit(int signr)
-{
-	quickexit(FALSE, 0);
+static void emergencyexit( int signr) {
+	quickexit( FALSE, 0) ;
 	quit( TRUE, 0) ; /* If quickexit fails (to save changes), do a force quit */
 }
 #endif
@@ -124,13 +122,12 @@ static void usage( void) {
 }
 
 
-int main(int argc, char **argv)
-{
-	struct buffer *bp;	/* temp buffer pointer */
+int main( int argc, char *argv[]) {
+	buffer_p bp;	/* temp buffer pointer */
 	int firstfile;	/* first file flag */
 	int carg;	/* current arg to scan */
 	int startflag;	/* startup executed flag */
-	struct buffer *firstbp = NULL;	/* ptr to first buffer in cmd line */
+	buffer_p firstbp = NULL;	/* ptr to first buffer in cmd line */
 	int viewflag;		/* are we starting in view mode? */
 	int gotoflag;		/* do we need to goto a line at start? */
 	int gline = 0;		/* if so, what line? */
@@ -138,17 +135,10 @@ int main(int argc, char **argv)
 	int errflag;		/* C error processing? */
 	bname_t bname ;	/* buffer name of file to read */
 
-	setlocale( LC_CTYPE, "") ; /* expects $LANG like en_GB.UTF-8 */
-
 #if	PKCODE & BSD
 	sleep(1); /* Time for window manager. */
 #endif
 
-#if	UNIX
-#ifdef SIGWINCH
-	signal(SIGWINCH, sizesignal);
-#endif
-#endif
 	if( argc == 2) {
 		if( strcmp( argv[ 1], "--help") == 0) {
 			usage() ;
@@ -325,7 +315,7 @@ int main(int argc, char **argv)
  */
 static void edinit( char *bname) {
 	buffer_p bp;
-	struct window *wp;
+	window_p wp;
 
 	if( !init_bindings()	/* initialize mapping of function to name and key */
 	||  NULL == (bp = bfind( bname, TRUE, 0))				/* First buffer */
@@ -442,42 +432,36 @@ static void dspram( void)
 
 #if	CLEAN
 
-/*
- * cexit()
+/* cexit()
  *
  * int status;		return status of emacs
  */
 void cexit( int status) {
-	struct buffer *bp;	/* buffer list pointer */
-	struct window *wp;	/* window list pointer */
-	struct window *tp;	/* temporary window pointer */
-
-	/* first clean up the windows */
-	wp = wheadp;
-	while (wp) {
-		tp = wp->w_wndp;
-		free(wp);
-		wp = tp;
+/* first clean up the windows */
+	window_p wp = wheadp ;
+	while( wp) {
+		window_p tp = wp->w_wndp ;
+		free( wp) ;
+		wp = tp ;
 	}
-	wheadp = NULL;
+	
+	wheadp = NULL ;
 
-	/* then the buffers */
-	bp = bheadp;
-	while (bp) {
-		bp->b_nwnd = 0;
-		bp->b_flag = 0;	/* don't say anything about a changed buffer! */
-		zotbuf(bp);
-		bp = bheadp;
+/* then the buffers */
+	buffer_p bp ;
+	while( (bp = bheadp) != NULL) {
+		bp->b_nwnd = 0 ;
+		bp->b_flag = 0 ;	/* don't say anything about a changed buffer! */
+		zotbuf( bp) ;
 	}
 
-	/* and the kill buffer */
-	kdelete();
+/* and the kill buffer */
+	kdelete() ;
 
-	/* and the video buffers */
-	vtfree();
+/* and the video buffers */
+	vtfree() ;
 
-#undef	exit
-	exit(status);
+	(exit)( status) ;
 }
 #endif
 

pklock.h

@@ -2,7 +2,7 @@
 #ifndef _PKLOCK_H_
 #define _PKLOCK_H_
 
-#include "estruct.h"
+#include "defines.h"	/* FILOCK, BSD, SVR4 */
 
 #if (FILOCK && BSD) || SVR4
 char *dolock( const char *fname) ;

posix.c

@@ -1,18 +1,17 @@
 /* posix.c -- posix implementation of termio.h */
-#ifdef POSIX
-
 #include "termio.h"
 
-/*	posix.c
- *
- *      The functions in this file negotiate with the operating system for
- *      characters, and write characters in a barely buffered fashion on the
- *      display. All operating systems.
- *
- *	modified by Petri Kutvonen
- *
- *	based on termio.c, with all the old cruft removed, and
- *	fixed for termios rather than the old termio.. Linus Torvalds
+#include "defines.h"	/* POSIX */
+#ifdef POSIX
+
+/* The functions in this file negotiate with the operating system for
+   characters, and write characters in a barely buffered fashion on the
+   display.  All operating systems.
+
+   modified by Petri Kutvonen
+ 
+   based on termio.c, with all the old cruft removed, and
+   fixed for termios rather than the old termio.. Linus Torvalds
  */
 
 #include <errno.h>
@@ -24,21 +23,19 @@
 #include <termios.h>
 #include <unistd.h>
 
-#include "estruct.h"
 #include "retcode.h"
 #include "utf8.h"
 
-int ttrow = HUGE ;		/* Row location of HW cursor */
-int ttcol = HUGE ;		/* Column location of HW cursor */
+int ttrow = -1 ;		/* Row location of HW cursor */
+int ttcol = -1 ;		/* Column location of HW cursor */
 
-/* Since Mac OS X's termios.h doesn't have the following 2 macros, define them.
- */
-#if BSD || defined(SYSV) && (defined(_DARWIN_C_SOURCE) || defined(_FREEBSD_C_SOURCE))
+/* Define missing macroes for BSD and CYGWIN environment */
+#if BSD
 #define OLCUC 0000002
 #define XCASE 0000004
 #endif
 
-#ifdef CYGWIN
+#ifdef __CYGWIN__			/* gcc predefined (see cpp -dM) */
 #define XCASE 0
 #define ECHOPRT 0
 #define PENDIN 0
@@ -96,10 +93,8 @@ void ttopen(void)
 	kbdflgs = fcntl(0, F_GETFL, 0);
 	kbdpoll = FALSE;
 
-	/* on all screens we are not sure of the initial position
-	   of the cursor                                        */
-	ttrow = 999;
-	ttcol = 999;
+/* on all screens we are not sure of the initial position of the cursor */
+	ttrow = ttcol = -1 ;
 }
 
 /*
@@ -247,8 +242,6 @@ int typahead(void)
 	return x;
 }
 
-#else
-typedef void _pedantic_empty_translation_unit ;
-#endif              /* not POSIX */
+#endif
 
 /* end of posix.c */

random.c

@@ -14,8 +14,8 @@
 
 #include "basic.h"
 #include "buffer.h"
+#include "defines.h"
 #include "display.h"
-#include "estruct.h"
 #include "execute.h"
 #include "input.h"
 #include "line.h"

region.c

@@ -12,7 +12,7 @@
 #include <stddef.h>
 
 #include "buffer.h"
-#include "estruct.h"
+#include "defines.h"
 #include "line.h"
 #include "mlout.h"
 #include "random.h"

search.c

@@ -65,8 +65,8 @@
 
 #include "basic.h"
 #include "buffer.h"
+#include "defines.h"
 #include "display.h"
-#include "estruct.h"
 #include "input.h"
 #include "isa.h"
 #include "line.h"

spawn.c

@@ -12,11 +12,9 @@
 #include <string.h>
 #include <unistd.h>
 
-#include "defines.h"
-
 #include "buffer.h"
+#include "defines.h"
 #include "display.h"
-#include "estruct.h"
 #include "exec.h"
 #include "file.h"
 #include "flook.h"
@@ -27,8 +25,6 @@
 
 #if	USG | BSD
 #include        <signal.h>
-#ifdef SIGWINCH
-#endif
 #endif
 
 

tcap.c

@@ -20,8 +20,8 @@
 #include <curses.h>
 #include <term.h>
 
+#include "defines.h"
 #include "display.h"
-#include "estruct.h"
 #include "termio.h"
 
 #if TERMCAP
@@ -83,7 +83,7 @@ static char *_UP, _PC, *CM, *CE, *CL, *SO, *SE;
    static char *CS, *DL, *AL, *SF, *SR;
 # endif
 
-struct terminal term = {
+terminal_t term = {
 	480,	/* actual 479 on 2560x1440 landscape terminal window */
 	2550,	/* actual 2541 */
 	0,		/* These four values are set dynamically at open time. */
@@ -231,16 +231,14 @@ static void tcapclose(void)
 }
 # endif
 
-static void tcapkopen(void)
-{
+static void tcapkopen( void) {
 # if PKCODE
-	putpad(TI);
-	ttflush();
-	ttrow = 999;
-	ttcol = 999;
-	sgarbf = TRUE;
+	putpad( TI) ;
+	ttflush() ;
+	ttrow = ttcol = -1 ;
+	sgarbf = TRUE ;
 # endif
-	strcpy(sres, "NORMAL");
+	strcpy(sres, "NORMAL") ;
 }
 
 static void tcapkclose(void)

terminal.h

@@ -6,45 +6,45 @@
 #include "retcode.h"
 #include "utf8.h"
 
-/* The editor communicates with the display using a high level interface. A
- * "TERM" structure holds useful variables, and indirect pointers to routines
- * that do useful operations. The low level get and put routines are here too.
- * This lets a terminal, in addition to having non standard commands, have
- * funny get and put character code too. The calls might get changed to
- * "termp->t_field" style in the future, to make it possible to run more than
- * one terminal type.
+/* The editor communicates with the display using a high level interface.
+   A "TERM" structure holds useful variables, and indirect pointers to
+   routines that do useful operations.  The low level get and put routines
+   are here too.  This lets a terminal, in addition to having non standard
+   commands, have funny get and put character code too.  The calls might
+   get changed to "termp->t_field" style in the future, to make it possible
+   to run more than one terminal type.
  */
-struct terminal {
-    const short t_maxrow ;  /* max number of rows allowable         */
-    const short t_maxcol ;  /* max number of columns allowable      */
-    short t_mrow ;          /* max number of rows displayable       */
-    short t_nrow ;          /* current number of rows displayed     */
-    short t_mcol ;          /* max number of rows displayable       */
-    short t_ncol ;          /* current number of columns displayed  */
-    short t_margin;     /* min margin for extended lines */
-    short t_scrsiz;     /* size of scroll region "      */
-    int t_pause;        /* # times thru update to pause */
-    void (*t_open)(void);   /* Open terminal at the start.  */
-    void (*t_close)(void);  /* Close terminal at end.       */
-    void (*t_kopen)(void);  /* Open keyboard                */
-    void (*t_kclose)(void); /* close keyboard               */
-    int (*t_getchar)(void); /* Get character from keyboard. */
-    int (*t_putchar)( unicode_t) ;  /* Put character to display.    */
-    void (*t_flush) (void); /* Flush output buffers.        */
-    void (*t_move)(int, int);/* Move the cursor, origin 0.   */
-    void (*t_eeol)(void);   /* Erase to end of line.        */
-    void (*t_eeop)(void);   /* Erase to end of page.        */
-    void (*t_beep)(void);   /* Beep.                        */
-    void (*t_rev)(int); /* set reverse video state      */
-    int (*t_rez)(char *);   /* change screen resolution     */
+typedef struct {
+    const short t_maxrow ;          /* max number of rows allowable */
+    const short t_maxcol ;          /* max number of columns allowable */
+    short t_mrow ;                  /* max number of rows displayable */
+    short t_nrow ;                  /* current number of rows displayed */
+    short t_mcol ;                  /* max number of rows displayable */
+    short t_ncol ;                  /* current number of columns displayed */
+    short t_margin ;                /* min margin for extended lines */
+    short t_scrsiz ;                /* size of scroll region */
+    int t_pause ;                   /* # times thru update to pause */
+    void (*t_open)( void) ;         /* Open terminal at the start */
+    void (*t_close)( void) ;        /* Close terminal at end. */
+    void (*t_kopen)( void) ;        /* Open keyboard */
+    void (*t_kclose)( void) ;       /* close keyboard */
+    int (*t_getchar)( void) ;       /* Get character from keyboard */
+    int (*t_putchar)( unicode_t) ;  /* Put character to display */
+    void (*t_flush) (void) ;        /* Flush output buffers */
+    void (*t_move)( int, int) ;     /* Move the cursor, origin 0 */
+    void (*t_eeol)( void) ;         /* Erase to end of line */
+    void (*t_eeop)( void) ;         /* Erase to end of page */
+    void (*t_beep)( void) ;         /* Beep */
+    void (*t_rev)( int) ;           /* set reverse video state */
+    int (*t_rez)( char *) ;         /* change screen resolution */
 #if COLOR
-    int (*t_setfor) (); /* set forground color          */
-    int (*t_setback) ();    /* set background color         */
+    int (*t_setfor)() ;             /* set forground color */
+    int (*t_setback)() ;            /* set background color */
 #endif
-#if     SCROLLCODE
-    void (*t_scroll)(int, int,int); /* scroll a region of the screen */
+#if SCROLLCODE
+    void (*t_scroll)( int, int,int) ; /* scroll a region of the screen */
 #endif
-};
+} terminal_t ;
 
 /* TEMPORARY macros for terminal I/O (to be placed in a machine dependant
    place later)
@@ -68,11 +68,8 @@ struct terminal {
 #define TTbacg      (*term.t_setback)
 #endif
 
-/* Terminal table defined only in term.c */
-extern struct terminal term ;
-
-extern int ttrow ;          /* Row location of HW cursor */
-extern int ttcol ;          /* Column location of HW cursor */
+/* Terminal table defined only in tcap.c */
+extern terminal_t term ;
 
 extern boolean eolexist ;   /* does clear to EOL exist?     */
 extern boolean revexist ;   /* does reverse video exist?    */

termio.c

@@ -1,21 +1,19 @@
 /* termio.c -- implements termio.h */
-#if !defined( POSIX)
-
 #include "termio.h"
 
-/*  TERMIO.C
- *
- * The functions in this file negotiate with the operating system for
- * characters, and write characters in a barely buffered fashion on the display.
- * All operating systems.
- *
- *  modified by Petri Kutvonen
+#include "defines.h"	/* POSIX */
+#ifndef POSIX
+
+/* The functions in this file negotiate with the operating system for
+   characters, and write characters in a barely buffered fashion on the
+   display.  All operating systems.
+
+   modified by Petri Kutvonen
  */
 
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "estruct.h"
 #include "retcode.h"
 #include "utf8.h"
 
@@ -23,8 +21,8 @@
 #include <unistd.h>
 #include <sys/ioctl.h>
 
-int ttrow = HUGE ;      /* Row location of HW cursor */
-int ttcol = HUGE ;      /* Column location of HW cursor */
+int ttrow = -1 ;    /* Row location of HW cursor */
+int ttcol = -1 ;	/* Column location of HW cursor */
 
 
 #if USG         /* System V */
@@ -141,8 +139,7 @@ void ttopen(void)
 
     /* on all screens we are not sure of the initial position
        of the cursor                                        */
-    ttrow = 999;
-    ttcol = 999;
+    ttrow = ttcol = -1 ;
 }
 
 /*
@@ -258,14 +255,12 @@ int typahead( void)
     return kbdqp;
 #endif
 
-#if !UNIX
+#  if !UNIX
     return FALSE;
-#endif
+#  endif
 }
-#endif
+# endif
 
-#else
-typedef void _pedantic_empty_translation_unit ;
 #endif              /* not POSIX */
 
 /* end of termio.c */

termio.h

@@ -6,8 +6,6 @@
 
 #define TYPEAH  1       /* type ahead causes update to be skipped */
 
-#define HUGE    1000    /* Huge number (for row/col)    */
-
 extern int ttrow ;      /* Row location of HW cursor    */
 extern int ttcol ;      /* Column location of HW cursor */
 

utf8.c

@@ -1,16 +1,13 @@
 /* utf8.c -- implements utf8.h, conversion between unicode and UTF-8 */
 #include "utf8.h"
 
-#define _XOPEN_SOURCE   /* wcwidth in wchar.h */
-
 #include <assert.h>
-#include <wchar.h>
+#include <wchar.h>					/* either _XOPEN_SOURCE or _GNU_SOURCE */
 
 
 /* Display width of UTF-8 character */
 int _utf8_width( unicode_t c) {
-#if CYGWIN
-    assert( sizeof( wchar_t) == 2) ;    /* wcwidth only supports UTF-16 */
+#if __SIZEOF_WCHAR_T__ == 2		    /* wcwidth only supports UTF-16 */
     return (c < 0x10000) ? wcwidth( (wchar_t) c) : -1 ;
 #else
     return wcwidth( (wchar_t) c) ;

window.c

@@ -9,8 +9,8 @@
 
 #include "basic.h"
 #include "buffer.h"
+#include "defines.h"
 #include "display.h"	/* upmode() */
-#include "estruct.h"
 #include "execute.h"
 #include "line.h"
 #include "mlout.h"

word.c

@@ -14,7 +14,7 @@
 
 #include "basic.h"
 #include "buffer.h"
-#include "estruct.h"
+#include "defines.h"
 #include "isa.h"
 #include "line.h"
 #include "mlout.h"