2 #------------------------------------------------------------------------------
3 # $File: rtf,v 1.8 2020/05/17 19:28:49 christos Exp $
4 # rtf: file(1) magic for Rich Text Format (RTF)
6 # Duncan P. Simpson, D.P.Simpson@dcs.warwick.ac.uk
7 # Update: Joerg Jenderek
8 # URL: https://en.wikipedia.org/wiki/Rich_Text_Format
9 # Reference: http://www.snake.net/software/RTF/RTF-Spec-1.7.rtf
10 # http://www.kleinlercher.at/tools/Windows_Protocols/Word2007RTFSpec9.pdf
12 # skip DROID fmt-355-signature-id-522.rtf by looking for valid version
14 # skip also \ in DROID fmt-50-signature-id-158.rtf by looking for valid version
15 >>5 ubyte !0x5C Rich Text Format data
20 # display information like version, language and code page of RTF
22 # 1 mostly, 2 for newer Pocket Word documents, space for test like fdo78502.rtf, { for some urtf
23 >5 ubyte !0x7b \b, version %c
24 # The word for character set must precede any text or most other control words
25 >6 string \\mac \b, Apple Macintosh
28 >>9 ubyte =0x61 \b, IBM PS/2, code page 850
29 >>9 ubyte !0x61 \b, IBM PC, code page 437
30 # unknown character set or ANSI later after control words like
31 # \adeflang1025 \info \title \author \category \manager
32 # "Burow, Steffanie - Im Tal des Schneeleoparden.rtf"
33 #>6 search/105 \\ansi \b, ANSI
34 >6 search/502 \\ansi \b, ANSI
35 >6 default x \b, unknown character set
36 # look for explict codepage keyword
37 # "Burow, Steffanie - Im Tal des Schneeleoparden.rtf"
38 #>5 search/110 \\ansicpg
39 >5 search/500 \\ansicpg
40 # skip unknown or buggy codepage string 0 like in fdo78502.rtf
41 >>&0 ubyte !0x30 \b, code page
42 # codepage string: 437~United States IBM, ..., 1252~WesternEuropean, ..., 57011~Punjabi
44 # skip space or \ and display possible 4th digit of code page string
46 >>>>&-1 ubyte <0x3A \b%c
47 # possible 5th digit of code page string
49 >>>>>>&-1 ubyte <0x3A \b%c
50 # look again at version byte to use default clause
52 # Default language ID for South Asian/Middle Eastern text
53 # language ID: 1025, ..., 1065~Persian, ..., 2057~English_UnitedKingdom, ..., 58380~French_NorthAfrica
54 # Readme-0.72-Persian.rtf
55 #>6 search/1 \\adeflang \b, default middle east language ID
56 >>6 search/497 \\adeflang \b, default middle east language ID
57 # https://docs.microsoft.com/en-us/openspecs/office_standards/ms-oe376/6c085406-a698-4e12-9d4d-c3b0ee3dbc4a
59 # skip \ and NL and show possible 5th digit of language string
61 >>>>&-1 ubyte <0x3A \b%c
62 # else look for default language to be used when the \plain control word is encountered
64 # "Burow, Steffanie - Im Tal des Schneeleoparden.rtf"
65 #>>>6 search/127 \\deflang
66 >>>6 search/505 \\deflang
67 >>>>&0 string >0 \b, default language ID %-.4s
68 # possible 5th digit of language string
70 >>>>>&-1 ubyte <0x3A \b%c
72 # Reference: http://latex2rtf.sourceforge.net/rtfspec_63.html
73 # Note: no real world example found
74 0 string {\\urtf Rich Text Format unicoded data
80 # URL: https://en.wikipedia.org/wiki/Microsoft_Word
81 # Reference: http://fileformats.archiveteam.org/wiki/Microsoft_Word
82 # Note: called by TrID "Pocket Word document"
83 # by PlanMaker "Pocket Word-Handheld PC" for pwd
84 # by PlanMaker "Pocket Word-Pocket PC" for psw
85 0 string {\\pwd Pocket Word document or template
86 # by SoftMaker Office http://extension.nirsoft.net/pwd
87 #!:mime application/msword
88 # https://reposcope.com/mimetype/application/x-pocket-word
89 !:mime application/x-pocket-word
90 # PWD for Handheld PC variant and PSW for Pocket PC variant