PR/16: Add autocad dxf magic

diff --git a/magic/Magdir/cad b/magic/Magdir/cad
index 3a71e06b69018f2d2b5e00c12cd205197355c040..efc195a28fa9ba09713050327b045be64e4f4a0a 100644 (file)
--- a/magic/Magdir/cad
+++ b/magic/Magdir/cad
@@ -1,6 +1,6 @@
 
 #------------------------------------------------------------------------------
-# $File: cad,v 1.16 2018/05/07 23:26:31 christos Exp $
+# $File: cad,v 1.17 2018/08/01 12:05:00 christos Exp $
 # autocad:  file(1) magic for cad files
 #
 
@@ -167,3 +167,19 @@
 0      string  ;;\020HSF\020V          OpenHSF (Hoops Stream Format)
 >7     regex/9 V[.0-9]{4,5}\020        %s
 !:ext hsf
+
+# AutoCAD Drawing Exchange Format
+0      regex           \^[\ \t]*0\r?\000$
+>1     regex           \^[\ \t]*SECTION\r?$
+>>2    regex           \^[\ \t]*2\r?$
+>>>3   regex           \^[\ \t]*HEADER\r?$     AutoCAD Drawing Exchange Format
+!:mime application/x-dxf
+!:ext  dxf
+>>>>&1 search/8192     AC1006                  \b, R10
+>>>>&1 search/8192     AC1009                  \b, R11/R12
+>>>>&1 search/8192     AC1012                  \b, R13
+>>>>&1 search/8192     AC1014                  \b, R14
+>>>>&1 search/8192     AC1015                  \b, version 2000
+>>>>&1 search/8192     AC1018                  \b, version 2004
+>>>>&1 search/8192     AC1021                  \b, version 2007
+>>>>&1 search/8192     AC1024                  \b, version 2010