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  1. 

  2. #------------------------------------------------------------------------------
    3. 

  3. # $File: cad,v 1.19 2019/04/19 00:42:27 christos Exp $
    4. 

  4. # autocad:  file(1) magic for cad files
    5. 

  5. #
    6. 

  6. 

  7. # Microstation DGN/CIT Files (www.bentley.com)
    8. 

  8. # Last updated July 29, 2005 by Lester Hightower
    9. 

  9. # DGN is the default file extension of Microstation/Intergraph CAD files.
    10. 

  10. # CIT is the proprietary raster format (similar to TIFF) used to attach
    11. 

  11. # raster underlays to Microstation DGN (vector) drawings.
    12. 

  12. #
    13. 

  13. # http://www.wotsit.org/search.asp
    14. 

  14. # https://filext.com/detaillist.php?extdetail=DGN
    15. 

  15. # https://filext.com/detaillist.php?extdetail=CIT
    16. 

  16. #
    17. 

  17. # https://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2
    18. 

  18. # 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928
    19. 

  19. # https://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682
    20. 

  20. # 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F
    21. 

  21. 0	string	\010\011\376			Microstation
    22. 

  22. >3	string	\002
    23. 

  23. >>30	string	\026\105			DGNFile
    24. 

  24. >>30	string	\034\105			DGNFile
    25. 

  25. >>30	string	\073\107			DGNFile
    26. 

  26. >>30	string	\073\110			DGNFile
    27. 

  27. >>30	string	\106\107			DGNFile
    28. 

  28. >>30	string	\110\103			DGNFile
    29. 

  29. >>30	string	\120\104			DGNFile
    30. 

  30. >>30	string	\172\104			DGNFile
    31. 

  31. >>30	string	\172\105			DGNFile
    32. 

  32. >>30	string	\172\106			DGNFile
    33. 

  33. >>30	string	\234\106			DGNFile
    34. 

  34. >>30	string	\273\105			DGNFile
    35. 

  35. >>30	string	\306\106			DGNFile
    36. 

  36. >>30	string	\310\104			DGNFile
    37. 

  37. >>30	string	\341\104			DGNFile
    38. 

  38. >>30	string	\372\103			DGNFile
    39. 

  39. >>30	string	\372\104			DGNFile
    40. 

  40. >>30	string	\372\106			DGNFile
    41. 

  41. >>30	string	\376\103			DGNFile
    42. 

  42. >4	string	\030\000\000			CITFile
    43. 

  43. >4	string	\030\000\003			CITFile
    44. 

  44. 

  45. # AutoCAD
    46. 

  46. # Merge of the different contributions and updates from https://en.wikipedia.org/wiki/Dwg
    47. 

  47. # and https://www.iana.org/assignments/media-types/image/vnd.dwg
    48. 

  48. 0	string	MC0.0	DWG AutoDesk AutoCAD Release 1.0
    49. 

  49. !:mime image/vnd.dwg
    50. 

  50. 0	string	AC1.2	DWG AutoDesk AutoCAD Release 1.2
    51. 

  51. !:mime image/vnd.dwg
    52. 

  52. 0	string	AC1.3	DWG AutoDesk AutoCAD Release 1.3
    53. 

  53. !:mime image/vnd.dwg
    54. 

  54. 0	string	AC1.40	DWG AutoDesk AutoCAD Release 1.40
    55. 

  55. !:mime image/vnd.dwg
    56. 

  56. 0	string	AC1.50	DWG AutoDesk AutoCAD Release 2.05
    57. 

  57. !:mime image/vnd.dwg
    58. 

  58. 0	string	AC2.10	DWG AutoDesk AutoCAD Release 2.10
    59. 

  59. !:mime image/vnd.dwg
    60. 

  60. 0	string	AC2.21	DWG AutoDesk AutoCAD Release 2.21
    61. 

  61. !:mime image/vnd.dwg
    62. 

  62. 0	string	AC2.22	DWG AutoDesk AutoCAD Release 2.22
    63. 

  63. !:mime image/vnd.dwg
    64. 

  64. 0	string	AC1001	DWG AutoDesk AutoCAD Release 2.22
    65. 

  65. !:mime image/vnd.dwg
    66. 

  66. 0	string	AC1002	DWG AutoDesk AutoCAD Release 2.50
    67. 

  67. !:mime image/vnd.dwg
    68. 

  68. 0	string	AC1003	DWG AutoDesk AutoCAD Release 2.60
    69. 

  69. !:mime image/vnd.dwg
    70. 

  70. 0	string	AC1004	DWG AutoDesk AutoCAD Release 9
    71. 

  71. !:mime image/vnd.dwg
    72. 

  72. 0	string	AC1006	DWG AutoDesk AutoCAD Release 10
    73. 

  73. !:mime image/vnd.dwg
    74. 

  74. 0	string	AC1009	DWG AutoDesk AutoCAD Release 11/12
    75. 

  75. !:mime image/vnd.dwg
    76. 

  76. # AutoCAD DWG versions R13/R14 (www.autodesk.com)
    77. 

  77. # Written December 01, 2003 by Lester Hightower
    78. 

  78. # Based on the DWG File Format Specifications at http://www.opendwg.org/
    79. 

  79. # AutoCad, from Nahuel Greco
    80. 

  80. # AutoCAD DWG versions R12/R13/R14 (www.autodesk.com)
    81. 

  81. 0	string	AC1012	DWG AutoDesk AutoCAD Release 13
    82. 

  82. !:mime image/vnd.dwg
    83. 

  83. 0	string	AC1014	DWG AutoDesk AutoCAD Release 14
    84. 

  84. !:mime image/vnd.dwg
    85. 

  85. 0	string	AC1015	DWG AutoDesk AutoCAD 2000/2002
    86. 

  86. !:mime image/vnd.dwg
    87. 

  87. 

  88. # A new version of AutoCAD DWG
    89. 

  89. # Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru,
    90. 

  90. # ICQ 358572321)
    91. 

  91. # From various sources like:
    92. 

  92. # https://autodesk.blogs.com/between_the_lines/autocad-release-history.html
    93. 

  93. 0	string	AC1018	DWG AutoDesk AutoCAD 2004/2005/2006
    94. 

  94. !:mime image/vnd.dwg
    95. 

  95. 0	string	AC1021	DWG AutoDesk AutoCAD 2007/2008/2009
    96. 

  96. !:mime image/vnd.dwg
    97. 

  97. 0	string	AC1024	DWG AutoDesk AutoCAD 2010/2011/2012
    98. 

  98. !:mime image/vnd.dwg
    99. 

  99. 0	string	AC1027	DWG AutoDesk AutoCAD 2013/2014
    100. 

  100. !:mime image/vnd.dwg
    101. 

  101. 

  102. # KOMPAS 2D drawing from ASCON
    103. 

  103. # This is KOMPAS 2D drawing or fragment of drawing but is not detailed nor
    104. 

  104. # gathered nor specification
    105. 

  105. # ASCON https://ascon.net/main/ in English,
    106. 

  106. #	https://ascon.ru/ main site in Russian
    107. 

  107. # Extension is CDW for drawing and FRW for fragment of drawing
    108. 

  108. # Sergey Zaykov (mail_of_sergey@mail.ru, sergey_zaikov@rambler.ru,
    109. 

  109. # ICQ 358572321, https://vkontakte.ru/id16076543)
    110. 

  110. # From:
    111. 

  111. # https://sd.ascon.ru/otrs/customer.pl?Action=CustomerFAQ&CategoryID=4&ItemID=292
    112. 

  112. # (in russian) and my experiments
    113. 

  113. 0	string	KF
    114. 

  114. >2	belong	0x4E00000C	Kompas drawing 12.0 SP1
    115. 

  115. >2	belong	0x4D00000C	Kompas drawing 12.0
    116. 

  116. >2	belong	0x3200000B	Kompas drawing 11.0 SP1
    117. 

  117. >2	belong	0x3100000B	Kompas drawing 11.0
    118. 

  118. >2	belong	0x2310000A	Kompas drawing 10.0 SP1
    119. 

  119. >2	belong	0x2110000A	Kompas drawing 10.0
    120. 

  120. >2	belong	0x08000009	Kompas drawing 9.0 SP1
    121. 

  121. >2	belong	0x05000009	Kompas drawing 9.0
    122. 

  122. >2	belong	0x33010008	Kompas drawing 8+
    123. 

  123. >2	belong	0x1A000008	Kompas drawing 8.0
    124. 

  124. >2	belong	0x2C010107	Kompas drawing 7+
    125. 

  125. >2	belong	0x05000007	Kompas drawing 7.0
    126. 

  126. >2	belong	0x32000006	Kompas drawing 6+
    127. 

  127. >2	belong	0x09000006	Kompas drawing 6.0
    128. 

  128. >2	belong	0x5C009005	Kompas drawing 5.11R03
    129. 

  129. >2	belong	0x54009005	Kompas drawing 5.11R02
    130. 

  130. >2	belong	0x51009005	Kompas drawing 5.11R01
    131. 

  131. >2	belong	0x22009005	Kompas drawing 5.10R03
    132. 

  132. >2	belong	0x22009005	Kompas drawing 5.10R02 mar
    133. 

  133. >2	belong	0x21009005	Kompas drawing 5.10R02 febr
    134. 

  134. >2	belong	0x19009005	Kompas drawing 5.10R01
    135. 

  135. >2	belong	0xF4008005	Kompas drawing 5.9R01.003
    136. 

  136. >2	belong	0x1C008005	Kompas drawing 5.9R01.002
    137. 

  137. >2	belong	0x11008005	Kompas drawing 5.8R01.003
    138. 

  138. 

  139. # CAD: file(1) magic for computer aided design files
    140. 

  140. # Phillip Griffith <phillip dot griffith at gmail dot com>
    141. 

  141. # AutoCAD magic taken from the Open Design Alliance's OpenDWG specifications.
    142. 

  142. #
    143. 

  143. 0	belong	0x08051700	Bentley/Intergraph MicroStation DGN cell library
    144. 

  144. 0	belong	0x0809fe02	Bentley/Intergraph MicroStation DGN vector CAD
    145. 

  145. 0	belong	0xc809fe02	Bentley/Intergraph MicroStation DGN vector CAD
    146. 

  146. 0	beshort	0x0809		Bentley/Intergraph MicroStation
    147. 

  147. >0x02	byte	0xfe
    148. 

  148. >>0x04	beshort	0x1800		CIT raster CAD
    149. 

  149. 

  150. # 3DS (3d Studio files)
    151. 

  151. 0	leshort		0x4d4d
    152. 

  152. >6	leshort		0x2
    153. 

  153. >>8	lelong		0xa
    154. 

  154. >>>16	leshort		0x3d3d	3D Studio model
    155. 

  155. !:mime	image/x-3ds
    156. 

  156. !:ext 3ds
    157. 

  157. 

  158. # MegaCAD 2D/3D drawing (.prt)
    159. 

  159. # https://megacad.de/
    160. 

  160. # From: Markus Heidelberg <markus.heidelberg@web.de>
    161. 

  161. 0	string	MegaCad23\0	MegaCAD 2D/3D drawing
    162. 

  162. 

  163. # Hoops CAD files
    164. 

  164. # https://docs.techsoft3d.com/visualize/3df/latest/build/general/hsf/\
    165. 

  165. # HSF_architecture.html
    166. 

  166. # Stephane Charette <stephane.charette@gmail.com>
    167. 

  167. 0	string	;;\020HSF\020V		OpenHSF (Hoops Stream Format)
    168. 

  168. >7	regex/9 V[.0-9]{4,5}\020	%s
    169. 

  169. !:ext hsf
    170. 

  170. 

  171. # AutoCAD Drawing Exchange Format
    172. 

  172. 0	regex		\^[\ \t]*0\r?\000$
    173. 

  173. >1	regex		\^[\ \t]*SECTION\r?$
    174. 

  174. >>2	regex		\^[\ \t]*2\r?$
    175. 

  175. >>>3	regex		\^[\ \t]*HEADER\r?$	AutoCAD Drawing Exchange Format
    176. 

  176. !:mime	application/x-dxf
    177. 

  177. !:ext	dxf
    178. 

  178. >>>>&1	search/8192	AC1006			\b, R10
    179. 

  179. >>>>&1	search/8192	AC1009			\b, R11/R12
    180. 

  180. >>>>&1	search/8192	AC1012			\b, R13
    181. 

  181. >>>>&1	search/8192	AC1014			\b, R14
    182. 

  182. >>>>&1	search/8192	AC1015			\b, version 2000
    183. 

  183. >>>>&1	search/8192	AC1018			\b, version 2004
    184. 

  184. >>>>&1	search/8192	AC1021			\b, version 2007
    185. 

  185. >>>>&1	search/8192	AC1024			\b, version 2010
    186. 

  186. 

  187. # The Sketchup 3D model format https://www.sketchup.com/
    188. 

  188. 0	string	\xff\xfe\xff\x0e\x53\x00\x6b\x00\x65\x00\x74\x00\x63\x00\x68\x00\x55\x00\x70\x00\x20\x00\x4d\x00\x6f\x00\x64\x00\x65\x00\x6c\x00	SketchUp Model
    189. 

  189. !:mime application/vnd.sketchup.skp
    190. 

  190. !:ext skp
    191.