# $File: adventure,v 1.18 2019/04/19 00:42:27 christos Exp $

#------------------------------------------------------------------------------
# $File: adventure,v 1.18 2019/04/19 00:42:27 christos Exp $
# adventure: file(1) magic for Adventure game files
#
# from Allen Garvin <[email protected]>
# Edited by Dave Chapeskie <[email protected]> Jun 28, 1998
# Edited by Chris Chittleborough <[email protected]>, March 2002
#
# ALAN
# I assume there are other, lower versions, but these are the only ones I
# saw in the archive.
0 beshort 0x0206 ALAN game data
>2 byte <10 version 2.6%d

# Infocom (see z-machine)
#------------------------------------------------------------------------------
# Z-machine: file(1) magic for Z-machine binaries.
# Sanity checks by David Griffith <[email protected]>
# Updated by Adam Buchbinder <[email protected]>
#
#http://www.gnelson.demon.co.uk/zspec/sect11.html
#https://www.jczorkmid.net/~jpenney/ZSpec11-latest.txt
#https://en.wikipedia.org/wiki/Z-machine
# The first byte is the Z-machine revision; it is always between 1 and 8. We
# had false matches (for instance, inbig5.ocp from the Omega TeX extension as
# well as an occasional MP3 file), so we sanity-check the version number.
#
# It might be possible to sanity-check the release number as well, as it seems
# (at least in classic Infocom games) to always be a relatively small number,
# always under 150 or so, but as this isn't rigorous, we'll wait on that until
# it becomes clear that it's needed.
#
0 ubyte >0
>0 ubyte <9
>>16 belong&0xfe00f0f0 0x3030
>>>0 ubyte < 10
>>>>2 ubeshort x
>>>>>18 regex [0-9][0-9][0-9][0-9][0-9][0-9]
>>>>>>0 ubyte < 10 Infocom (Z-machine %d
>>>>>>>2 ubeshort x \b, Release %d
>>>>>>>>18 string >\0 \b, Serial %.6s
>>>>>>>>18 string x \b)
!:strength + 40
!:mime application/x-zmachine

#------------------------------------------------------------------------------
# Glulx: file(1) magic for Glulx binaries.
#
# David Griffith <[email protected]>
# I haven't checked for false matches yet.
#
0 string Glul Glulx game data
>4 beshort x (Version %d
>>6 byte x \b.%d
>>8 byte x \b.%d)
>36 string Info Compiled by Inform
!:mime application/x-glulx

# For Quetzal and blorb magic see iff

# TADS (Text Adventure Development System) version 2
# All files are machine-independent (games compile to byte-code) and are tagged
# with a version string of the form "V2.<digit>.<digit>\0".
# Game files start with "TADS2 bin\n\r\032\0" then the compiler version.
0 string TADS2\ bin TADS
>9 belong !0x0A0D1A00 game data, CORRUPTED
>9 belong 0x0A0D1A00
>>13 string >\0 %s game data
!:mime application/x-tads
# Resource files start with "TADS2 rsc\n\r\032\0" then the compiler version.
0 string TADS2\ rsc TADS
>9 belong !0x0A0D1A00 resource data, CORRUPTED
>9 belong 0x0A0D1A00
>>13 string >\0 %s resource data
!:mime application/x-tads
# Some saved game files start with "TADS2 save/g\n\r\032\0", a little-endian
# 2-byte length N, the N-char name of the game file *without* a NUL (darn!),
# "TADS2 save\n\r\032\0" and the interpreter version.
0 string TADS2\ save/g TADS
>12 belong !0x0A0D1A00 saved game data, CORRUPTED
>12 belong 0x0A0D1A00
>>(16.s+32) string >\0 %s saved game data
!:mime application/x-tads
# Other saved game files start with "TADS2 save\n\r\032\0" and the interpreter
# version.
0 string TADS2\ save TADS
>10 belong !0x0A0D1A00 saved game data, CORRUPTED
>10 belong 0x0A0D1A00
>>14 string >\0 %s saved game data
!:mime application/x-tads

# TADS (Text Adventure Development System) version 3
# Game files start with "T3-image\015\012\032"
0 string T3-image\015\012\032
>11 leshort x TADS 3 game data (format version %d)
# Saved game files start with "T3-state-v####\015\012\032"
# where #### is a format version number
0 string T3-state-v
>14 string \015\012\032 TADS 3 saved game data (format version
>>10 byte x %c
>>11 byte x \b%c
>>12 byte x \b%c
>>13 byte x \b%c)
!:mime application/x-t3vm-image

# edited by David Griffith <[email protected]>
# Danny Milosavljevic <[email protected]>
# These are ADRIFT (adventure game standard) game files, extension .taf
# Checked from source at (http://www.adrift.co/) and various taf files
# found at the Interactive Fiction Archive (https://ifarchive.org/)
0 belong 0x3C423FC9
>4 belong 0x6A87C2CF Adrift game file version
>>8 belong 0x94453661 3.80
>>8 belong 0x94453761 3.90
>>8 belong 0x93453E61 4.0
>>8 belong 0x92453E61 5.0
>>8 default x unknown
!:mime application/x-adrift