#	$OpenBSD: cad,v 1.1 2004/06/03 03:14:19 tedu Exp $

#------------------------------------------------------------------------------
# autocad:  file(1) magic for cad files
#

# AutoCAD DWG versions R13/R14 (www.autodesk.com)
# Written December 01, 2003 by Lester Hightower
# Based on the DWG File Format Specifications at http://www.opendwg.org/
0	string	       \101\103\061\060\061		   AutoCAD
>5	string	       \062\000\000\000\000		   DWG ver. R13
>5	string	       \064\000\000\000\000		   DWG ver. R14

# Microstation DGN/CIT Files (www.bentley.com)
# Written October 30, 2003 by Lester Hightower
# DGN is the default file extension of Microstation/Intergraph CAD files.
# CIT is the proprietary raster format (similar to TIFF) used to attach
# raster underlays to Microstation DGN (vector) drawings.
# 
# http://www.wotsit.org/search.asp
# http://filext.com/detaillist.php?extdetail=DGN
# http://filext.com/detaillist.php?extdetail=CIT
#
# http://www.bentley.com/products/default.cfm?objectid=97F351F5-9C35-4E5E-89C2
# 3F86C928&method=display&p_objectid=97F351F5-9C35-4E5E-89C280A93F86C928
# http://www.bentley.com/products/default.cfm?objectid=A5C2FD43-3AC9-4C71-B682
# 721C479F&method=display&p_objectid=A5C2FD43-3AC9-4C71-B682C7BE721C479F
0	string	       \010\011\376			   Microstation
>3	string	       \002
>>30	string	       \372\104				   DGN File
>>30	string	       \172\104				   DGN File
>>30	string	       \026\105				   DGN File
>4	string	       \030\000\000			   CIT File

# AutoCad, from Nahuel Greco
0	string AC1012	AutoCad (release 12)
0	string AC1014	AutoCad (release 14)