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- #------------------------------------------------------------------------------
- # $File: rtf,v 1.9 2020/12/12 20:01:47 christos Exp $
- # rtf: file(1) magic for Rich Text Format (RTF)
- #
- # Duncan P. Simpson, D.P.Simpson@dcs.warwick.ac.uk
- # Update: Joerg Jenderek
- # URL: https://en.wikipedia.org/wiki/Rich_Text_Format
- # Reference: http://www.snake.net/software/RTF/RTF-Spec-1.7.rtf
- # http://www.kleinlercher.at/tools/Windows_Protocols/Word2007RTFSpec9.pdf
- 0 string {\\rtf
- # skip DROID fmt-355-signature-id-522.rtf by looking for valid version
- >5 ubyte !0xAB
- # skip also \ in DROID fmt-50-signature-id-158.rtf by looking for valid version
- >>5 ubyte !0x5C Rich Text Format data
- !:mime text/rtf
- !:apple ????RTF
- !:ext rtf
- >>>0 use rtf-info
- # display information like version, language and code page of RTF
- 0 name rtf-info
- # 1 mostly, 2 for newer Pocket Word documents, space for test like fdo78502.rtf, { for some urtf
- >5 ubyte !0x7b \b, version %c
- # The word for character set must precede any text or most other control words
- >6 string \\mac \b, Apple Macintosh
- >6 string \\pc
- # control word \pca
- >>9 ubyte =0x61 \b, IBM PS/2, code page 850
- >>9 ubyte !0x61 \b, IBM PC, code page 437
- # unknown character set or ANSI later after control words like
- # \adeflang1025 \info \title \author \category \manager
- # "Burow, Steffanie - Im Tal des Schneeleoparden.rtf"
- #>6 search/105 \\ansi \b, ANSI
- >6 search/502 \\ansi \b, ANSI
- >6 default x \b, unknown character set
- # look for explicit codepage keyword
- # "Burow, Steffanie - Im Tal des Schneeleoparden.rtf"
- #>5 search/110 \\ansicpg
- >5 search/500 \\ansicpg
- # skip unknown or buggy codepage string 0 like in fdo78502.rtf
- >>&0 ubyte !0x30 \b, code page
- # codepage string: 437~United States IBM, ..., 1252~WesternEuropean, ..., 57011~Punjabi
- >>>&-1 string x %-.3s
- # skip space or \ and display possible 4th digit of code page string
- >>>&2 ubyte >0x2F
- >>>>&-1 ubyte <0x3A \b%c
- # possible 5th digit of code page string
- >>>>>&0 ubyte >0x2F
- >>>>>>&-1 ubyte <0x3A \b%c
- # look again at version byte to use default clause
- >5 ubyte x
- # Default language ID for South Asian/Middle Eastern text
- # language ID: 1025, ..., 1065~Persian, ..., 2057~English_UnitedKingdom, ..., 58380~French_NorthAfrica
- # Readme-0.72-Persian.rtf
- #>6 search/1 \\adeflang \b, default middle east language ID
- >>6 search/497 \\adeflang \b, default middle east language ID
- # https://docs.microsoft.com/en-us/openspecs/office_standards/ms-oe376/6c085406-a698-4e12-9d4d-c3b0ee3dbc4a
- >>>&0 string x %.4s
- # skip \ and NL and show possible 5th digit of language string
- >>>&4 ubyte >0x2F
- >>>>&-1 ubyte <0x3A \b%c
- # else look for default language to be used when the \plain control word is encountered
- >>6 default x
- # "Burow, Steffanie - Im Tal des Schneeleoparden.rtf"
- #>>>6 search/127 \\deflang
- >>>6 search/505 \\deflang
- >>>>&0 string >0 \b, default language ID %-.4s
- # possible 5th digit of language string
- >>>>&4 ubyte >0x2F
- >>>>>&-1 ubyte <0x3A \b%c
- # Reference: http://latex2rtf.sourceforge.net/rtfspec_63.html
- # Note: no real world example found
- 0 string {\\urtf Rich Text Format unicoded data
- !:mime text/rtf
- #!:apple ????RTF
- !:ext rtf
- >1 use rtf-info
- # URL: https://en.wikipedia.org/wiki/Microsoft_Word
- # Reference: http://fileformats.archiveteam.org/wiki/Microsoft_Word
- # Note: called by TrID "Pocket Word document"
- # by PlanMaker "Pocket Word-Handheld PC" for pwd
- # by PlanMaker "Pocket Word-Pocket PC" for psw
- 0 string {\\pwd Pocket Word document or template
- # by SoftMaker Office http://extension.nirsoft.net/pwd
- #!:mime application/msword
- # https://reposcope.com/mimetype/application/x-pocket-word
- !:mime application/x-pocket-word
- # PWD for Handheld PC variant and PSW for Pocket PC variant
- # PWT for template
- !:ext pwd/psw/pwt
- >0 use rtf-info
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