#ifndef _ESTRUCT_H_
#define _ESTRUCT_H_
/* 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
#ifdef EGA
#undef EGA
#endif
/* Machine/OS definitions. */
#if defined(AUTOCONF) || defined(MSDOS) || defined(BSD) || defined(SYSV) || defined(VMS)
/* Make an intelligent guess about the target system. */
#if defined(__TURBOC__)
#define MSDOS 1 /* MS/PC DOS 3.1-4.0 with Turbo C 2.0 */
#else
#define MSDOS 0
#endif
#if defined(BSD) || defined(sun) || defined(ultrix) || (defined(vax) && defined(unix)) || 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(__hpux) || defined( __unix__)
#define USG 1 /* System V UNIX */
#else
#define USG 0
#endif
#if defined(VMS) || (defined(vax) && ! defined(unix))
#define VMS 1 /* VAX/VMS */
#else
#define VMS 0
#endif
#define V7 0 /* No more. */
#else
#define MSDOS 1 /* MS-DOS */
#define V7 0 /* V7 UNIX or Coherent or BSD4.2 */
#define BSD 0 /* UNIX BSD 4.2 and ULTRIX */
#define USG 0 /* UNIX system V */
#define VMS 0 /* VAX/VMS */
#endif /*autoconf */
#ifndef AUTOCONF
/* Compiler definitions */
#define UNIX 0 /* a random UNIX compiler */
#define MSC 0 /* MicroSoft C compiler, versions 3 up */
#define TURBO 1 /* Turbo C/MSDOS */
#else
#define UNIX (V7 | BSD | USG)
#define MSC 0
#define TURBO MSDOS
#endif /*autoconf */
/* Debugging options */
#define RAMSIZE 0 /* dynamic RAM memory usage tracking */
#if RAMSIZE
#define RAMSHOW 1 /* auto dynamic RAM reporting */
#endif
#ifndef AUTOCONF
/* Special keyboard definitions */
#define VT220 0 /* Use keypad escapes P.K. */
#define VT100 0 /* Handle VT100 style keypad. */
/* Terminal Output definitions */
#define ANSI 0 /* ANSI escape sequences */
#define VMSVT 0 /* various VMS terminal entries */
#define VT52 0 /* VT52 terminal (Zenith). */
#define TERMCAP 0 /* Use TERMCAP */
#define IBMPC 1 /* IBM-PC CGA/MONO/EGA driver */
#elif defined( MINGW32)
#define VT220 (UNIX | VMS)
#define VT100 0
#define ANSI 0
#define VMSVT 0
#define VT52 0
#define TERMCAP 0
#define IBMPC 0
#else
#define VT220 (UNIX | VMS)
#define VT100 0
#define ANSI 0
#define VMSVT VMS
#define VT52 0
#define TERMCAP UNIX
#define IBMPC MSDOS
#endif /* Autoconf. */
/* Configuration options */
#define CFENCE 1 /* fench matching in CMODE */
#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 */
#define ASCII 1 /* always using ASCII char sequences for now */
#define EBCDIC 0 /* later IBM mainfraim versions will use EBCDIC */
#ifndef AUTOCONF
#define XONXOFF 0 /* don't disable XON-XOFF flow control P.K. */
#define NATIONL 0 /* interprete [,],\,{,},| as characters P.K. */
#else
#define XONXOFF (UNIX | VMS)
#define NATIONL (UNIX | VMS)
#endif /* Autoconf. */
#define PKCODE 1 /* include my extensions P.K., define always */
#define IBMCHR MSDOS /* use IBM PC character set P.K. */
#define SCROLLCODE 1 /* scrolling code P.K. */
/* System dependant library redefinitions, structures and includes. */
#if TURBO
#include <dos.h>
#include <mem.h>
#undef peek
#undef poke
#define peek(a,b,c,d) movedata(a,b,FP_SEG(c),FP_OFF(c),d)
#define poke(a,b,c,d) movedata(FP_SEG(c),FP_OFF(c),a,b,d)
#endif
#if MSDOS & MSC
#include <dos.h>
#include <memory.h>
#define peek(a,b,c,d) movedata(a,b,FP_SEG(c),FP_OFF(c),d)
#define poke(a,b,c,d) movedata(FP_SEG(c),FP_OFF(c),a,b,d)
#define movmem(a, b, c) memcpy(b, a, c)
#endif
#if VMS
#define unlink(a) delete(a)
#endif
/* Define some ability flags. */
#if IBMPC
#define MEMMAP 1
#else
#define MEMMAP 0
#endif
#if MSDOS | V7 | USG | BSD
#define ENVFUNC 1
#else
#define ENVFUNC 0
#endif
/* DIFCASE represents the integer difference between upper
and lower case letters. It is an xor-able value, which is
fortunate, since the relative positions of upper to lower
case letters is the opposite of ascii in ebcdic.
*/
#ifdef islower
#undef islower
#endif
#if PKCODE
#ifdef isupper
#undef isupper
#endif
#endif
#if ASCII
#define DIFCASE 0x20
#if NATIONL
#define LASTUL ']'
#define LASTLL '}'
#else
#define LASTUL 'Z'
#define LASTLL 'z'
#endif
#if IBMCHR
#define isletter(c) (('a' <= c && LASTLL >= c) || ('A' <= c && LASTUL >= c) || (128<=c && c<=167))
#define islower(c) (('a' <= c && LASTLL >= c))
#define isupper(c) (('A' <= c && LASTUL >= c))
#else
#define isletter(c) __isxletter((0xFF & (c)))
#define islower(c) isxlower((0xFF & (c)))
#define isupper(c) isxupper((0xFF & (c)))
#define __isxletter(c) (('a' <= c && LASTLL >= c) || ('A' <= c && LASTUL >= c) || (192<=c /* && c<=255 */))
#define isxlower(c) (('a' <= c && LASTLL >= c) || (224 <= c && 252 >= c))
#define isxupper(c) (('A' <= c && LASTUL >= c) || (192 <= c && 220 >= c))
#endif
#endif
#if EBCDIC
#define DIFCASE 0x40
#define isletter(c) (('a' <= c && 'i' >= c) || ('j' <= c && 'r' >= c) || ('s' <= c && 'z' >= c) || ('A' <= c && 'I' >= c) || ('J' <= c && 'R' >= c) || ('S' <= c && 'Z' >= c))
#define islower(c) (('a' <= c && 'i' >= c) || ('j' <= c && 'r' >= c) || ('s' <= c && 'z' >= c))
#if PKCODE
#define isupper(c) (('A' <= c && 'I' >= c) || ('J' <= c && 'R' >= c) || ('S' <= c && 'Z' >= c))
#endif
#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