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nethack/include/vmsconf.h
nethack.rankin 2f1813cdd8 altmeta Alt key hack, mainly for unix (trunk only) 
Some time ago we received a patch submission which attempted to
handle the Alt key for terminals or emulators which transmit two char
sequence "ESC c" when Alt+c is pressed, but I can't find it.  I don't
remember the details but recall that it had at least once significant
problem (perhaps just that it was unconditional, although it may have
been implemented in a way which interferred with using ESC to cancel).

     This patch reimplements the desired fix, making the new behavior be
conditional on a boolean option:  altmeta.  That option already exists
for the Amiga port, where it deals with low-level keyboard handling but
essentially affects the same thing:  whether Alt+key can be used as a
shortcut for various extended commands.  This one affects how the core
processes commands, and is only available if ALTMETA is defined at
compile time.  I've defined that for Unix and VMS; other ports don't
seem to need it.  (I'm not sure whether "options" created by makedefs
ought to mention it.  So far, it doesn't since this isn't something
users are expected to tweak.  The setting of the non-Amiga altmeta
option doesn't get saved and restored, so won't affect saved data if
someone does toggle ALTMETA and then rebuild.)

     When [non-Amiga] altmeta is set, nethack's core will give special
handling to ESC, but only during top level command processing.  If ESC
is seen while reading a command, it will be consumed and then the next
character seen will have its meta bit set.  This introduces a potential
problem:  typing ESC as a command will result in waiting for another
character instead of reporting that that isn't a valid command.  Since it
isn't a valid command, this shouldn't be a big deal, but starting a count
intended to prefix your next command and then typing ESC after deciding
to abort that count runs into the same situation:  nethack will wait for
another character to complete the two character sequence expected for
"ESC c".  There's not much that can be done with this, other than have
the Guidebook mention that an extra ESC is needed to cancel the pending
count, because digits followed by ESC could actually be a numeric prefix
for Alt+something rather than an attempt to abort the count.
2011-04-19 02:02:11 +00:00

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/* NetHack 3.5 vmsconf.h $Date$ $Revision$ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
#ifdef VMS
#ifndef VMSCONF_H
#define VMSCONF_H
/*
* Edit these to choose values appropriate for your site.
* WIZARD is the username allowed to use the debug option of nethack; no harm
* is done by leaving it as a username that doesn't exist at your site.
* HACKDIR can be overridden at run-time with the logical name HACKDIR, as in
* $ define hackdir disk$users:[games.nethack]
* Trailing NULs are present in the default values in order to make some
* extra room for patching longer values into an existing executable.
*/
#define Local_WIZARD "NHWIZARD\0\0\0\0"
#define Local_HACKDIR "DISK$USERS:[GAMES.NETHACK.3_5_X.PLAY]\0\0\0\0\0\0\0\0"
/*
* This section cleans up the stuff done in config.h so that it
* shouldn't need to be modified. It's conservative so that if
* config.h is actually edited, the changes won't impact us.
*/
#ifdef UNIX
# undef UNIX
#endif
#ifdef HACKDIR
# undef HACKDIR
#endif
#ifdef WIZARD
# undef WIZARD
#endif
#ifdef WIZARD_NAME
# undef WIZARD_NAME
#endif
#define HACKDIR Local_HACKDIR
#ifndef KR1ED
# define WIZARD Local_WIZARD
# define WIZARD_NAME WIZARD
#else
# define WIZARD 1
# define WIZARD_NAME Local_WIZARD
#endif
/* filenames require punctuation to avoid redirection via logical names */
#undef RECORD
#define RECORD "record;1" /* scoreboard file (retains high scores) */
#undef LOGFILE
#define LOGFILE "logfile;0" /* optional file (records all games) */
#define HLOCK "perm;1" /* an empty file used for locking purposes */
/* want compression--for level & save files--performed within NetHack itself */
#ifdef COMPRESS
# undef COMPRESS
#endif
#ifndef INTERNAL_COMP
# define INTERNAL_COMP
#endif
/*
* If nethack.exe will be installed with privilege so that the playground
* won't need to be left unprotected, define SECURE to suppress a couple
* of file protection fixups (protection of bones files and ownership of
* save files).
*/
/* #define SECURE */
/*
* Put the readonly data files into a single container rather than into
* separate files in the playground directory.
*/
#define DLB /* use data librarian code */
/*
* Provide menu of saved games to choose from at start.
* [Player needs to use ``nethack "-ugames"'' for this to work.]
*/
#define SELECTSAVED
/*
* You may define TEXTCOLOR if your system has any terminals that recognize
* ANSI color sequences of the form ``<ESCAPE>[#;#m'', where the first # is
* a number between 40 and 47 represented background color, and the second
* # is a number between 30 and 37 representing the foreground color.
* GIGI terminals and DECterm windows on color VAXstations support these
* color escape sequences, as do some 3rd party terminals and many micro
* computers.
*/
/* #define TEXTCOLOR */
/*
* If you define USE_QIO_INPUT, then you'll get raw characters from the
* keyboard, not unlike those of the unix version of Nethack. This will
* allow you to use the Escape key in normal gameplay, and the appropriate
* control characters in Wizard mode. It will work most like the unix version.
* It will also avoid "<interrupt>" being displayed when ^Y is pressed.
*
* Otherwise, the VMS SMG calls will be used. These calls block use of
* the escape key, as well as certain control keys, so gameplay is not
* the same, although the differences are fairly negligible. You must
* then use a VTxxx function key or two <escape>s to give an ESC response.
*/
#define USE_QIO_INPUT /* use SYS$QIOW instead of SMG$READ_KEYSTROKE */
/*
* Allow the user to decide whether to pause via timer or excess screen
* output for various display effects like explosions and moving objects.
*/
#define TIMED_DELAY /* enable the `timed_delay' run-time option */
/*
* If you define MAIL, then NetHack will capture incoming broadcast
* messages such as "New mail from so-and-so" and "Print job completed,"
* and then deliver them to the player. For mail and phone broadcasts
* a scroll of mail will be created, which when read will cause NetHack
* to prompt the player for a command to spawn in order to respond. The
* latter capability will not be available if SHELL is disabled below.
* If you undefine MAIL, broadcasts will go straight to the terminal,
* resulting in disruption of the screen display; use <ctrl/R> to redraw.
*/
#define MAIL /* enable broadcast trapping */
/*
* SHELL enables the player to 'escape' into a spawned subprocess via
* the '!' command. Logout or attach back to the parent to resume play.
* If the player attaches back to NetHack, then a subsequent escape will
* re-attach to the existing subprocess. Any such subprocess left over
* at game exit will be deleted by an exit handler.
* SUSPEND enables someone running NetHack in a subprocess to reconnect
* to the parent process with the <ctrl/Z> command; this is not very
* close to Unix job control, but it's better than nothing.
*/
#define SHELL /* do not delete the '!' command */
#define SUSPEND /* don't delete the ^Z command, such as it is */
/*
* Some terminals or terminal emulators send two character sequence "ESC c"
* when Alt+c is pressed. The altmeta run-time option allows the user to
* request that "ESC c" be treated as M-c, which means that if nethack sees
* ESC when it is waiting for a command, it will wait for another character
* (even if user intended that ESC to be standalone to cancel a count prefix).
*/
#define ALTMETA /* support altmeta run-time option */
#define RANDOM /* use sys/share/random.c instead of vaxcrtl rand */
#define FCMASK 0660 /* file creation mask */
/*
* The remainder of the file should not need to be changed.
*/
/* data librarian defs */
#ifdef DLB
# define DLBFILE "nh-data.dlb"
/*
* Since we can do without case insensitive filename comparison,
* avoid enabling it because that requires compiling and linking
* src/hacklib into util/dlb_main.
*/
/* # define FILENAME_CMP strcmpi */ /* case insensitive */
#endif
#if defined(VAXC) && !defined(ANCIENT_VAXC)
# ifdef volatile
# undef volatile
# endif
# ifdef const
# undef const
# endif
#endif
#ifdef __DECC
# define STRICT_REF_DEF /* used in lev_main.c */
#endif
#ifdef STRICT_REF_DEF
# define DEFINE_OSPEED
#endif
#ifndef alloca
/* bison generated foo_yacc.c might try to use alloca() */
# ifdef __GNUC__
# define alloca __builtin_alloca
# else
# define ALLOCA_HACK /* used in util/panic.c */
# endif
#endif
#ifdef _DECC_V4_SOURCE
/* <types.h> excludes some necessary typedefs when _DECC_V4_SOURCE is defined */
#include <types.h>
# ifndef __PID_T
# define __PID_T
typedef __pid_t pid_t;
# endif
# ifndef __UID_T
# define __UID_T
typedef __uid_t uid_t;
# endif
# ifndef __GID_T
# define __GID_T
typedef __gid_t gid_t;
# endif
# ifndef __MODE_T
# define __MODE_T
typedef __mode_t mode_t;
# endif
#endif /* _DECC_V4_SOURCE */
#include <time.h>
#if 0 /* <file.h> is missing for old gcc versions; skip it to save time */
#include <file.h>
#else /* values needed from missing include file */
# define O_RDONLY 0
# define O_WRONLY 1
# define O_RDWR 2
# define O_CREAT 0x200
# define O_TRUNC 0x400
#endif
#ifndef REDO
# define Getchar nhgetch
#endif
#define tgetch vms_getchar
#include "system.h"
#define index strchr
#define rindex strrchr
/* Use the high quality random number routines. */
#if defined(RANDOM)
#define Rand() random()
/* VMS V7 adds these entry points to DECC$SHR; stick with the nethack-supplied
code to avoid having to deal with version-specific conditionalized builds */
#define random nh_random
#define srandom nh_srandom
#define initstate nh_initstate
#define setstate nh_setstate
#else
#define Rand() rand()
#endif
#ifndef __GNUC__
# ifndef bcopy
#define bcopy(s,d,n) memcpy((d),(s),(n)) /* vaxcrtl */
# endif
#endif
#define abort() vms_abort() /* vmsmisc.c */
#define creat(f,m) vms_creat(f,m) /* vmsfiles.c */
#define exit(sts) vms_exit(sts) /* vmsmisc.c */
#define getuid() vms_getuid() /* vmsunix.c */
#define link(f1,f2) vms_link(f1,f2) /* vmsfiles.c */
#define open(f,k,m) vms_open(f,k,m) /* vmsfiles.c */
#define fopen(f,m) vms_fopen(f,m) /* vmsfiles.c */
/* #define unlink(f0) vms_unlink(f0) /* vmsfiles.c */
#ifdef VERYOLD_VMS
#define unlink(f0) delete(f0) /* vaxcrtl */
#else
#define unlink(f0) remove(f0) /* vaxcrtl, decc$shr */
#endif
#define C$$TRANSLATE(n) c__translate(n) /* vmsfiles.c */
/* VMS global names are case insensitive... */
#define An vms_an
#define The vms_the
#define Shk_Your vms_shk_your
/* avoid global symbol in Alpha/VMS V1.5 STARLET library (link trouble) */
#define ospeed vms_ospeed
/* used in several files which don't #include "extern.h" */
extern void FDECL(vms_exit, (int));
extern int FDECL(vms_open, (const char *,int,unsigned));
extern FILE *FDECL(vms_fopen, (const char *,const char *));
char *FDECL(vms_basename, (const char *)); /* vmsfiles.c */
#endif /* VMSCONF_H */
#endif /* VMS */
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