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Diffstat (limited to 'magic/Magdir/mathematica')
| -rw-r--r-- | magic/Magdir/mathematica | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/magic/Magdir/mathematica b/magic/Magdir/mathematica new file mode 100644 index 0000000..f034477 --- /dev/null +++ b/magic/Magdir/mathematica @@ -0,0 +1,177 @@ + +#------------------------------------------------------------------------------ +# $File: mathematica,v 1.15 2022/10/31 13:22:26 christos Exp $ +# mathematica: file(1) magic for mathematica files +# "H. Nanosecond" <aldomel@ix.netcom.com> +# Mathematica a multi-purpose math program +# versions 2.2 and 3.0 + +#mathematica .mb +0 string \064\024\012\000\035\000\000\000 Mathematica version 2 notebook +!:ext mb +0 string \064\024\011\000\035\000\000\000 Mathematica version 2 notebook +!:ext mb + +# .ma +# multiple possibilities: + +0 string (*^\n\n::[\011frontEndVersion\ =\ Mathematica notebook +#>41 string >\0 %s +!:ext mb + +#0 string (*^\n\n::[\011palette Mathematica notebook version 2.x + +#0 string (*^\n\n::[\011Information Mathematica notebook version 2.x +#>675 string >\0 %s #doesn't work well + +# there may be 'cr' instead of 'nl' in some does this matter? + +# generic: +0 string (*^\r\r::[\011 Mathematica notebook version 2.x +!:ext mb +0 string (*^\r\n\r\n::[\011 Mathematica notebook version 2.x +!:ext mb +0 string (*^\015 Mathematica notebook version 2.x +!:ext mb +0 string (*^\n\r\n\r::[\011 Mathematica notebook version 2.x +!:ext mb +0 string (*^\r::[\011 Mathematica notebook version 2.x +!:ext mb +0 string (*^\r\n::[\011 Mathematica notebook version 2.x +!:ext mb +0 string (*^\n\n::[\011 Mathematica notebook version 2.x +!:ext mb +0 string (*^\n::[\011 Mathematica notebook version 2.x +!:ext mb + + +# Mathematica .mx files + +#0 string (*This\ is\ a\ Mathematica\ binary\ dump\ file.\ It\ can\ be\ loaded\ with\ Get.*) Mathematica binary file +0 string (*This\ is\ a\ Mathematica\ binary\ Mathematica binary file +#>71 string \000\010\010\010\010\000\000\000\000\000\000\010\100\010\000\000\000 +# >71... is optional +>88 string >\0 from %s + + +# Mathematica files PBF: +# 115 115 101 120 102 106 000 001 000 000 000 203 000 001 000 +0 string MMAPBF\000\001\000\000\000\203\000\001\000 Mathematica PBF (fonts I think) + +# .ml files These are menu resources I think +# these start with "[0-9][0-9][0-9]\ A~[0-9][0-9][0-9]\ +# how to put that into a magic rule? +4 string \ A~ MAthematica .ml file + +# .nb files +#too long 0 string (***********************************************************************\n\n\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ Mathematica-Compatible Notebook Mathematica 3.0 notebook +0 string (*********************** Mathematica 3.0 notebook + +# other (* matches it is a comment start in these langs +# GRR: Too weak; also matches other languages e.g. ML +#0 string (* Mathematica, or Pascal, Modula-2 or 3 code text + +######################### +# MatLab v5 +# URL: http://fileformats.archiveteam.org/wiki/MAT +# Reference: https://www.mathworks.com/help/pdf_doc/matlab/matfile_format.pdf +# first 116 bytes of header contain text in human-readable form +0 string MATLAB Matlab v +#>11 string/T x \b, at 11 "%.105s" +#!:mime application/octet-stream +!:mime application/x-matlab-data +!:ext mat +# https://de.mathworks.com/help/matlab/import_export/mat-file-versions.html +# level of the MAT-file like: 5.0 7.0 or maybe 7.3 +#>7 string x LEVEL "%.3s" +>7 ubyte =0x35 \b5 mat-file +>7 ubyte !0x35 +>>7 string x \b%.3s mat-file +>126 short 0x494d (big endian) +>>124 beshort x version %#04x +>126 short 0x4d49 (little endian) +# 0x0100 for level 5.0 and 0x0200 for level 7.0 +>>124 leshort x version %#04x +# test again so that default clause works +>126 short x +# created by MATLAB include Platform sometimes without leading comma (0x2C) or missing +# like: GLNX86 PCWIN PCWIN64 SOL2 Windows\0407 nt posix +>>20 search/2 Platform:\040 \b, platform +>>>&0 string x %-0.2s +>>>&2 ubyte !0x2C \b%c +>>>>&0 ubyte !0x2C \b%c +>>>>>&0 ubyte !0x2C \b%c +>>>>>>&0 ubyte !0x2C \b%c +>>>>>>>&0 ubyte !0x2C \b%c +>>>>>>>>&0 ubyte !0x2C \b%c +>>>>>>>>>&0 ubyte !0x2C \b%c +# examples without Platform tag like one_by_zero_char.mat +>>20 default x +>>>11 string x "%s" +# created by MATLAB include time like: Fri Feb 20 15:26:59 2009 +>34 search/9/c created\040on:\040 \b, created +>>&0 string x %-.24s +# MatLab v4 +# From: Joerg Jenderek +# check for valid imaginary flag of Matlab matrix version 4 +13 ushort 0 +# check for valid ASCII matrix name +>20 ubyte >0x1F +# skip PreviousEntries.dat with "invalid high" name \304P\344@\001 +>>20 ubyte <0304 +# skip some Netwfw*.dat and $I3KREPH.dat by checking for non zero number of rows +>>>4 ulong !0 +# skip some CD-ROM filesystem like test-hfs.iso by looking for valid big endian type flag +>>>>0 ubelong&0xFFffFF00 0x00000300 +>>>>>0 use matlab4 +# no example for 8-bit and 16-bit integers matrix +>>>>0 ubelong&0xFFffFF00 0x00000400 +>>>>>0 use matlab4 +# branch for Little-Endian variant of Matlab MATrix version 4 +# skip big endian variant by looking for valid low lttle endian type flag +>>>>0 ulelong <53 +# skip tokens.dat and some Netwfw*.dat by check for valid imaginary flag value of MAT version 4 +>>>>>12 ulelong <2 +# no misidentified little endian MATrix example with "short" matrix name +>>>>>>16 ulelong <3 +>>>>>>>0 use \^matlab4 +# little endian MATrix with "long" matrix name or some misidentified samples +>>>>>>16 ulelong >2 +# skip TileCacheLogo-*.dat with invalid 2nd character \001 of matrix name with length 96 +>>>>>>>21 ubyte >0x1F +>>>>>>>>0 use \^matlab4 +# display information of Matlab v4 mat-file +0 name matlab4 Matlab v4 mat-file +#!:mime application/octet-stream +!:mime application/x-matlab-data +!:ext mat +# 20-byte header with 5 long integers that contains information describing certain attributes of the Matrix +# type flag decimal MOPT; maximal 4052=FD4h; maximal 52=34h for little endian +#>0 ubelong x \b, type flag %u +#>0 ubelong x (%#x) +# M: 0~little endian 1~Big Endian 2~VAX D-float 3~VAX G-float 4~Cray +#>0 ubelong/1000 x \b, M=%u +>0 ubelong/1000 0 (little endian) +>0 ubelong/1000 1 (big endian) +>0 ubelong/1000 2 (VAX D-float) +>0 ubelong/1000 3 (VAX G-float) +>0 ubelong/1000 4 (Cray) +# namlen; the length of the matrix name +#>16 ubelong x \b, name length %u +#>(16.L+19) ubyte x \b, TERMINATING NAME CHARACTER=%#x +# nul terminated matrix name like: fit_params testmatrix testsparsecomplex teststringarray +#>20 string x \b, MATRIX NAME="%s" +#>21 ubyte x \b, MAYBE 2ND CHAR=%c +>16 pstring/L x %s +# T indicates the matrix type: 0~numeric 1~text 2~sparse +#>0 ubelong%10 x \b, T=%u +>0 ubelong%10 0 \b, numeric +>0 ubelong%10 1 \b, text +>0 ubelong%10 2 \b, sparse +# mrows; number of rows in the matrix like: 1 3 8 +>4 ubelong x \b, rows %u +# ncols; number of columns in the matrix like: 1 3 4 5 9 43 +>8 ubelong x \b, columns %u +# imagf; imaginary flag; 1~matrix has an imaginary part 0~only real data +>12 ubelong !0 \b, imaginary (%u) +# real; Real part of the matrix consists of mrows * ncols numbers |