mirror of
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683 lines
20 KiB
C
683 lines
20 KiB
C
#ifndef _ESTRUCT_H_
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#define _ESTRUCT_H_
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/* ESTRUCT.H
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*
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* Structure and preprocessor defines
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*
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* written by Dave G. Conroy
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* modified by Steve Wilhite, George Jones
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* substantially modified by Daniel Lawrence
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* modified by Petri Kutvonen
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*/
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#include "line.h"
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#define MAXCOL 500
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#define MAXROW 500
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#ifdef MSDOS
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#undef MSDOS
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#endif
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#ifdef EGA
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#undef EGA
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#endif
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#ifdef CTRLZ
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#undef CTRLZ
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#endif
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/* Machine/OS definitions. */
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#if defined(AUTOCONF) || defined(MSDOS) || defined(BSD) || defined(SYSV) || defined(VMS)
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/* Make an intelligent guess about the target system. */
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#if defined(__TURBOC__)
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#define MSDOS 1 /* MS/PC DOS 3.1-4.0 with Turbo C 2.0 */
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#else
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#define MSDOS 0
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#endif
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#if defined(BSD) || defined(sun) || defined(ultrix) || (defined(vax) && defined(unix)) || defined(ultrix) || defined(__osf__)
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#ifndef BSD
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#define BSD 1 /* Berkeley UNIX */
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#endif
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#else
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#define BSD 0
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#endif
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#if defined(SVR4) || defined(__linux__) /* ex. SunOS 5.3 */
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#define SVR4 1
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#define SYSV 1
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#undef BSD
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#endif
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#if defined(SYSV) || defined(u3b2) || defined(_AIX) || (defined(i386) && defined(unix)) || defined(__hpux)
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#define USG 1 /* System V UNIX */
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#else
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#define USG 0
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#endif
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#if defined(VMS) || (defined(vax) && ! defined(unix))
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#define VMS 1 /* VAX/VMS */
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#else
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#define VMS 0
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#endif
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#define V7 0 /* No more. */
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#else
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#define MSDOS 1 /* MS-DOS */
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#define V7 0 /* V7 UNIX or Coherent or BSD4.2 */
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#define BSD 0 /* UNIX BSD 4.2 and ULTRIX */
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#define USG 0 /* UNIX system V */
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#define VMS 0 /* VAX/VMS */
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#endif /*autoconf */
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#ifndef AUTOCONF
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/* Compiler definitions */
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#define UNIX 0 /* a random UNIX compiler */
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#define MSC 0 /* MicroSoft C compiler, versions 3 up */
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#define TURBO 1 /* Turbo C/MSDOS */
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#else
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#define UNIX (V7 | BSD | USG)
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#define MSC 0
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#define TURBO MSDOS
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#endif /*autoconf */
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/* Debugging options */
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#define RAMSIZE 0 /* dynamic RAM memory usage tracking */
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#define RAMSHOW 0 /* auto dynamic RAM reporting */
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#ifndef AUTOCONF
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/* Special keyboard definitions */
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#define VT220 0 /* Use keypad escapes P.K. */
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#define VT100 0 /* Handle VT100 style keypad. */
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/* Terminal Output definitions */
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#define ANSI 0 /* ANSI escape sequences */
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#define VMSVT 0 /* various VMS terminal entries */
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#define VT52 0 /* VT52 terminal (Zenith). */
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#define TERMCAP 0 /* Use TERMCAP */
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#define IBMPC 1 /* IBM-PC CGA/MONO/EGA driver */
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#else
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#define VT220 (UNIX | VMS)
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#define VT100 0
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#define ANSI 0
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#define VMSVT VMS
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#define VT52 0
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#define TERMCAP UNIX
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#define IBMPC MSDOS
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#endif /* Autoconf. */
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/* Configuration options */
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#define CVMVAS 1 /* arguments to page forward/back in pages */
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#define CLRMSG 0 /* space clears the message line with no insert */
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#define CFENCE 1 /* fench matching in CMODE */
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#define TYPEAH 1 /* type ahead causes update to be skipped */
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#define DEBUGM 1 /* $debug triggers macro debugging */
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#define VISMAC 0 /* update display during keyboard macros */
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#define CTRLZ 0 /* add a ^Z at end of files under MSDOS only */
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#define ADDCR 0 /* ajout d'un CR en fin de chaque ligne (ST520) */
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#define NBRACE 1 /* new style brace matching command */
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#define REVSTA 1 /* Status line appears in reverse video */
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#ifndef AUTOCONF
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#define COLOR 1 /* color commands and windows */
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#define FILOCK 0 /* file locking under unix BSD 4.2 */
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#else
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#define COLOR MSDOS
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#ifdef SVR4
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#define FILOCK 1
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#else
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#define FILOCK BSD
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#endif
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#endif /* Autoconf. */
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#define ISRCH 1 /* Incremental searches like ITS EMACS */
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#define WORDPRO 1 /* Advanced word processing features */
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#define APROP 1 /* Add code for Apropos command */
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#define CRYPT 1 /* file encryption enabled? */
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#define MAGIC 1 /* include regular expression matching? */
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#define AEDIT 1 /* advanced editing options: en/detabbing */
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#define PROC 1 /* named procedures */
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#define CLEAN 0 /* de-alloc memory on exit */
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#define ASCII 1 /* always using ASCII char sequences for now */
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#define EBCDIC 0 /* later IBM mainfraim versions will use EBCDIC */
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#ifndef AUTOCONF
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#define XONXOFF 0 /* don't disable XON-XOFF flow control P.K. */
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#define NATIONL 0 /* interprete [,],\,{,},| as characters P.K. */
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#else
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#define XONXOFF (UNIX | VMS)
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#define NATIONL (UNIX | VMS)
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#endif /* Autoconf. */
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#define PKCODE 1 /* include my extensions P.K., define always */
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#define IBMCHR MSDOS /* use IBM PC character set P.K. */
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#define SCROLLCODE 1 /* scrolling code P.K. */
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/* System dependant library redefinitions, structures and includes. */
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#if TURBO
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#include <dos.h>
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#include <mem.h>
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#undef peek
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#undef poke
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#define peek(a,b,c,d) movedata(a,b,FP_SEG(c),FP_OFF(c),d)
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#define poke(a,b,c,d) movedata(FP_SEG(c),FP_OFF(c),a,b,d)
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#endif
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#if VMS
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#define atoi xatoi
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#define abs xabs
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#define getname xgetname
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#endif
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#if MSDOS & MSC
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#include <dos.h>
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#include <memory.h>
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#define peek(a,b,c,d) movedata(a,b,FP_SEG(c),FP_OFF(c),d)
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#define poke(a,b,c,d) movedata(FP_SEG(c),FP_OFF(c),a,b,d)
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#define movmem(a, b, c) memcpy(b, a, c)
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#endif
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#if VMS
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#define unlink(a) delete(a)
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#endif
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/* Define some ability flags. */
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#if IBMPC
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#define MEMMAP 1
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#else
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#define MEMMAP 0
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#endif
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#if MSDOS | V7 | USG | BSD
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#define ENVFUNC 1
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#else
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#define ENVFUNC 0
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#endif
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/* Emacs global flag bit definitions (for gflags). */
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#define GFREAD 1
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/* Internal constants. */
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#define NBINDS 256 /* max # of bound keys */
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#define NFILEN 80 /* # of bytes, file name */
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#define NBUFN 16 /* # of bytes, buffer name */
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#define NLINE 256 /* # of bytes, input line */
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#define NSTRING 128 /* # of bytes, string buffers */
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#define NKBDM 256 /* # of strokes, keyboard macro */
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#define NPAT 128 /* # of bytes, pattern */
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#define HUGE 1000 /* Huge number */
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#define NLOCKS 100 /* max # of file locks active */
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#define NCOLORS 8 /* number of supported colors */
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#define KBLOCK 250 /* sizeof kill buffer chunks */
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#define CONTROL 0x10000000 /* Control flag, or'ed in */
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#define META 0x20000000 /* Meta flag, or'ed in */
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#define CTLX 0x40000000 /* ^X flag, or'ed in */
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#define SPEC 0x80000000 /* special key (function keys) */
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#ifdef FALSE
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#undef FALSE
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#endif
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#ifdef TRUE
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#undef TRUE
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#endif
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#if 0
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#define FALSE 0 /* False, no, bad, etc. */
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#define TRUE 1 /* True, yes, good, etc. */
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#define ABORT 2 /* Death, ^G, abort, etc. */
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#define FAILED 3 /* not-quite fatal false return */
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#endif
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typedef enum {
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FALSE,
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TRUE
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} boolean ;
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#define ABORT 2
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#define STOP 0 /* keyboard macro not in use */
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#define PLAY 1 /* playing */
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#define RECORD 2 /* recording */
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/* Directive definitions */
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#define DIF 0
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#define DELSE 1
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#define DENDIF 2
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#define DGOTO 3
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#define DRETURN 4
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#define DENDM 5
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#define DWHILE 6
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#define DENDWHILE 7
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#define DBREAK 8
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#define DFORCE 9
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#define NUMDIRS 10
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/*
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* PTBEG, PTEND, FORWARD, and REVERSE are all toggle-able values for
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* the scan routines.
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*/
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#define PTBEG 0 /* Leave the point at the beginning on search */
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#define PTEND 1 /* Leave the point at the end on search */
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#define FORWARD 0 /* forward direction */
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#define REVERSE 1 /* backwards direction */
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#define CFCPCN 0x0001 /* Last command was C-P, C-N */
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#define CFKILL 0x0002 /* Last command was a kill */
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#define BELL 0x07 /* a bell character */
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#define TAB 0x09 /* a tab character */
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#if V7 | USG | BSD
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#define PATHCHR ':'
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#else
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#define PATHCHR ';'
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#endif
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#define INTWIDTH sizeof(int) * 3
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/* Macro argument token types */
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#define TKNUL 0 /* end-of-string */
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#define TKARG 1 /* interactive argument */
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#define TKBUF 2 /* buffer argument */
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#define TKVAR 3 /* user variables */
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#define TKENV 4 /* environment variables */
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#define TKFUN 5 /* function.... */
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#define TKDIR 6 /* directive */
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#define TKLBL 7 /* line label */
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#define TKLIT 8 /* numeric literal */
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#define TKSTR 9 /* quoted string literal */
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#define TKCMD 10 /* command name */
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/* Internal defined functions */
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#define nextab(a) (a & ~tabmask) + (tabmask+1)
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#ifdef abs
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#undef abs
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#endif
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/* DIFCASE represents the integer difference between upper
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and lower case letters. It is an xor-able value, which is
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fortunate, since the relative positions of upper to lower
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case letters is the opposite of ascii in ebcdic.
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*/
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#ifdef islower
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#undef islower
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#endif
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#if PKCODE
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#ifdef isupper
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#undef isupper
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#endif
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#endif
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#if ASCII
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#define DIFCASE 0x20
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#if NATIONL
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#define LASTUL ']'
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#define LASTLL '}'
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#else
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#define LASTUL 'Z'
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#define LASTLL 'z'
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#endif
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#if IBMCHR
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#define isletter(c) (('a' <= c && LASTLL >= c) || ('A' <= c && LASTUL >= c) || (128<=c && c<=167))
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#define islower(c) (('a' <= c && LASTLL >= c))
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#define isupper(c) (('A' <= c && LASTUL >= c))
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#else
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#define isletter(c) isxletter((0xFF & (c)))
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#define islower(c) isxlower((0xFF & (c)))
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#define isupper(c) isxupper((0xFF & (c)))
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#define isxletter(c) (('a' <= c && LASTLL >= c) || ('A' <= c && LASTUL >= c) || (192<=c && c<=255))
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#define isxlower(c) (('a' <= c && LASTLL >= c) || (224 <= c && 252 >= c))
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#define isxupper(c) (('A' <= c && LASTUL >= c) || (192 <= c && 220 >= c))
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#endif
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#endif
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#if EBCDIC
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#define DIFCASE 0x40
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#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))
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#define islower(c) (('a' <= c && 'i' >= c) || ('j' <= c && 'r' >= c) || ('s' <= c && 'z' >= c))
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#if PKCODE
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#define isupper(c) (('A' <= c && 'I' >= c) || ('J' <= c && 'R' >= c) || ('S' <= c && 'Z' >= c))
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#endif
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#endif
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/* Dynamic RAM tracking and reporting redefinitions */
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#if RAMSIZE
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#define malloc allocate
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#define free release
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#endif
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/* De-allocate memory always on exit (if the operating system or
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main program can not
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*/
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#if CLEAN
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#define exit(a) cexit(a)
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int cexit( int status) ;
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#endif
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/*
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* There is a window structure allocated for every active display window. The
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* windows are kept in a big list, in top to bottom screen order, with the
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* listhead at "wheadp". Each window contains its own values of dot and mark.
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* The flag field contains some bits that are set by commands to guide
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* redisplay. Although this is a bit of a compromise in terms of decoupling,
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* the full blown redisplay is just too expensive to run for every input
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* character.
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*/
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struct window {
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struct window *w_wndp; /* Next window */
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struct buffer *w_bufp; /* Buffer displayed in window */
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struct line *w_linep; /* Top line in the window */
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struct line *w_dotp; /* Line containing "." */
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struct line *w_markp; /* Line containing "mark" */
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int w_doto; /* Byte offset for "." */
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int w_marko; /* Byte offset for "mark" */
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char w_toprow; /* Origin 0 top row of window */
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char w_ntrows; /* # of rows of text in window */
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char w_force; /* If NZ, forcing row. */
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char w_flag; /* Flags. */
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#if COLOR
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char w_fcolor; /* current forground color */
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char w_bcolor; /* current background color */
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#endif
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};
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#define WFFORCE 0x01 /* Window needs forced reframe */
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#define WFMOVE 0x02 /* Movement from line to line */
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#define WFEDIT 0x04 /* Editing within a line */
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#define WFHARD 0x08 /* Better to a full display */
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#define WFMODE 0x10 /* Update mode line. */
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#define WFCOLR 0x20 /* Needs a color change */
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#if SCROLLCODE
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#define WFKILLS 0x40 /* something was deleted */
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#define WFINS 0x80 /* something was inserted */
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#endif
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/*
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* Text is kept in buffers. A buffer header, described below, exists for every
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* buffer in the system. The buffers are kept in a big list, so that commands
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* that search for a buffer by name can find the buffer header. There is a
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* safe store for the dot and mark in the header, but this is only valid if
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* the buffer is not being displayed (that is, if "b_nwnd" is 0). The text for
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* the buffer is kept in a circularly linked list of lines, with a pointer to
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* the header line in "b_linep".
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* Buffers may be "Inactive" which means the files associated with them
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* have not been read in yet. These get read in at "use buffer" time.
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*/
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struct buffer {
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struct buffer *b_bufp; /* Link to next struct buffer */
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struct line *b_dotp; /* Link to "." struct line structure */
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struct line *b_markp; /* The same as the above two, */
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struct line *b_linep; /* Link to the header struct line */
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int b_doto; /* Offset of "." in above struct line */
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int b_marko; /* but for the "mark" */
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int b_mode; /* editor mode of this buffer */
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char b_active; /* window activated flag */
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char b_nwnd; /* Count of windows on buffer */
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char b_flag; /* Flags */
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char b_fname[NFILEN]; /* File name */
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char b_bname[NBUFN]; /* Buffer name */
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#if CRYPT
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char b_key[NPAT]; /* current encrypted key */
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#endif
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};
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#define BFINVS 0x01 /* Internal invisable buffer */
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#define BFCHG 0x02 /* Changed since last write */
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#define BFTRUNC 0x04 /* buffer was truncated when read */
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/* mode flags */
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#define NUMMODES 11 /* # of defined modes */
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#define MDWRAP 0x0001 /* word wrap */
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#define MDCMOD 0x0002 /* C indentation and fence match */
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#define MDSPELL 0x0004 /* spell error parcing */
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#define MDEXACT 0x0008 /* Exact matching for searches */
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#define MDVIEW 0x0010 /* read-only buffer */
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#define MDOVER 0x0020 /* overwrite mode */
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#define MDMAGIC 0x0040 /* regular expresions in search */
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#define MDCRYPT 0x0080 /* encrytion mode active */
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#define MDASAVE 0x0100 /* auto-save mode */
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#define MDUTF8 0x0200 /* utf8 mode */
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#define MDDOS 0x0400 /* CRLF eol mode */
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/*
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* The starting position of a region, and the size of the region in
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* characters, is kept in a region structure. Used by the region commands.
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*/
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struct region {
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struct line *r_linep; /* Origin struct line address. */
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int r_offset; /* Origin struct line offset. */
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long r_size; /* Length in characters. */
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};
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/*
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* The editor communicates with the display using a high level interface. A
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* "TERM" structure holds useful variables, and indirect pointers to routines
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* that do useful operations. The low level get and put routines are here too.
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* This lets a terminal, in addition to having non standard commands, have
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* funny get and put character code too. The calls might get changed to
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* "termp->t_field" style in the future, to make it possible to run more than
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* one terminal type.
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*/
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struct terminal {
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short t_mrow; /* max number of rows allowable */
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short t_nrow; /* current number of rows used */
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short t_mcol; /* max Number of columns. */
|
|
short t_ncol; /* current Number of columns. */
|
|
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)(int); /* 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 */
|
|
#endif
|
|
#if SCROLLCODE
|
|
void (*t_scroll)(int, int,int); /* scroll a region of the screen */
|
|
#endif
|
|
};
|
|
|
|
/* TEMPORARY macros for terminal I/O (to be placed in a machine
|
|
dependant place later) */
|
|
|
|
#define TTopen (*term.t_open)
|
|
#define TTclose (*term.t_close)
|
|
#define TTkopen (*term.t_kopen)
|
|
#define TTkclose (*term.t_kclose)
|
|
#define TTgetc (*term.t_getchar)
|
|
#define TTputc (*term.t_putchar)
|
|
#define TTflush (*term.t_flush)
|
|
#define TTmove (*term.t_move)
|
|
#define TTeeol (*term.t_eeol)
|
|
#define TTeeop (*term.t_eeop)
|
|
#define TTbeep (*term.t_beep)
|
|
#define TTrev (*term.t_rev)
|
|
#define TTrez (*term.t_rez)
|
|
#if COLOR
|
|
#define TTforg (*term.t_setfor)
|
|
#define TTbacg (*term.t_setback)
|
|
#endif
|
|
|
|
/* The editor holds deleted text chunks in the struct kill buffer. The
|
|
* kill buffer is logically a stream of ascii characters, however
|
|
* due to its unpredicatable size, it gets implemented as a linked
|
|
* list of chunks. (The d_ prefix is for "deleted" text, as k_
|
|
* was taken up by the keycode structure).
|
|
*/
|
|
struct kill {
|
|
struct kill *d_next; /* Link to next chunk, NULL if last. */
|
|
char d_chunk[KBLOCK]; /* Deleted text. */
|
|
};
|
|
|
|
/* When emacs' command interpetor needs to get a variable's name,
|
|
* rather than it's value, it is passed back as a variable description
|
|
* structure. The v_num field is a index into the appropriate variable table.
|
|
*/
|
|
struct variable_description {
|
|
int v_type; /* Type of variable. */
|
|
int v_num; /* Ordinal pointer to variable in list. */
|
|
};
|
|
|
|
/* The !WHILE directive in the execution language needs to
|
|
* stack references to pending whiles. These are stored linked
|
|
* to each currently open procedure via a linked list of
|
|
* the following structure.
|
|
*/
|
|
struct while_block {
|
|
struct line *w_begin; /* ptr to !while statement */
|
|
struct line *w_end; /* ptr to the !endwhile statement */
|
|
int w_type; /* block type */
|
|
struct while_block *w_next; /* next while */
|
|
};
|
|
|
|
#define BTWHILE 1
|
|
#define BTBREAK 2
|
|
|
|
/*
|
|
* Incremental search defines.
|
|
*/
|
|
#if ISRCH
|
|
|
|
#define CMDBUFLEN 256 /* Length of our command buffer */
|
|
|
|
#define IS_ABORT 0x07 /* Abort the isearch */
|
|
#define IS_BACKSP 0x08 /* Delete previous char */
|
|
#define IS_TAB 0x09 /* Tab character (allowed search char) */
|
|
#define IS_NEWLINE 0x0D /* New line from keyboard (Carriage return) */
|
|
#define IS_QUOTE 0x11 /* Quote next character */
|
|
#define IS_REVERSE 0x12 /* Search backward */
|
|
#define IS_FORWARD 0x13 /* Search forward */
|
|
#define IS_VMSQUOTE 0x16 /* VMS quote character */
|
|
#define IS_VMSFORW 0x18 /* Search forward for VMS */
|
|
#define IS_QUIT 0x1B /* Exit the search */
|
|
#define IS_RUBOUT 0x7F /* Delete previous character */
|
|
|
|
/* IS_QUIT is no longer used, the variable metac is used instead */
|
|
|
|
#endif
|
|
|
|
#if defined(MAGIC)
|
|
/*
|
|
* Defines for the metacharacters in the regular expression
|
|
* search routines.
|
|
*/
|
|
#define MCNIL 0 /* Like the '\0' for strings. */
|
|
#define LITCHAR 1 /* Literal character, or string. */
|
|
#define ANY 2
|
|
#define CCL 3
|
|
#define NCCL 4
|
|
#define BOL 5
|
|
#define EOL 6
|
|
#define DITTO 7
|
|
#define CLOSURE 256 /* An or-able value. */
|
|
#define MASKCL (CLOSURE - 1)
|
|
|
|
#define MC_ANY '.' /* 'Any' character (except newline). */
|
|
#define MC_CCL '[' /* Character class. */
|
|
#define MC_NCCL '^' /* Negate character class. */
|
|
#define MC_RCCL '-' /* Range in character class. */
|
|
#define MC_ECCL ']' /* End of character class. */
|
|
#define MC_BOL '^' /* Beginning of line. */
|
|
#define MC_EOL '$' /* End of line. */
|
|
#define MC_CLOSURE '*' /* Closure - does not extend past newline. */
|
|
#define MC_DITTO '&' /* Use matched string in replacement. */
|
|
#define MC_ESC '\\' /* Escape - suppress meta-meaning. */
|
|
|
|
#define BIT(n) (1 << (n)) /* An integer with one bit set. */
|
|
#define CHCASE(c) ((c) ^ DIFCASE) /* Toggle the case of a letter. */
|
|
|
|
/* HICHAR - 1 is the largest character we will deal with.
|
|
* HIBYTE represents the number of bytes in the bitmap.
|
|
*/
|
|
#define HICHAR 256
|
|
#define HIBYTE HICHAR >> 3
|
|
|
|
/* Typedefs that define the meta-character structure for MAGIC mode searching
|
|
* (struct magic), and the meta-character structure for MAGIC mode replacement
|
|
* (struct magic_replacement).
|
|
*/
|
|
struct magic {
|
|
short int mc_type;
|
|
union {
|
|
int lchar;
|
|
char *cclmap;
|
|
} u;
|
|
};
|
|
|
|
struct magic_replacement {
|
|
short int mc_type;
|
|
char *rstr;
|
|
};
|
|
|
|
#endif /* MAGIC */
|
|
|
|
#endif
|