From: Christos Zoulas <christos@zoulas.com>
Date: Thu, 8 Sep 2011 21:58:42 +0000 (+0000)
Subject: add marc21
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5221c2640336fae30f7c6b4fd88f4f5b25aad2ff;p=file

add marc21
---

diff --git a/magic/Magdir/marc21 b/magic/Magdir/marc21
new file mode 100644
index 00000000..83f7959e
--- /dev/null
+++ b/magic/Magdir/marc21
@@ -0,0 +1,28 @@
+#--------------------------------------------
+# marc21: file(1) magic for MARC 21 Format
+#
+# Kevin Ford (kefo@loc.gov)
+# 
+# MARC21 formats are for the representation and communication
+# of bibliographic and related information in machine-readable
+# form.  For more info, see http://www.loc.gov/marc/
+
+
+# leader position 20-21 must be 45
+20	string	45	
+
+# leader starts with 5 digits, followed by codes specific to MARC format
+>0	regex/1	(^[0-9]{5})[acdnp][^bhlnqsu-z]	MARC21 Bibliographic
+!:mime	application/marc
+>0	regex/1	(^[0-9]{5})[acdnosx][z]	MARC21 Authority
+!:mime	application/marc
+>0	regex/1	(^[0-9]{5})[cdn][uvxy]	MARC21 Holdings
+!:mime	application/marc
+0	regex/1	(^[0-9]{5})[acdn][w]	MARC21 Classification
+!:mime	application/marc
+>0	regex/1	(^[0-9]{5})[cdn][q]	MARC21 Community
+!:mime	application/marc
+
+# leader position 22-23, should be "00" but is it?
+>0	regex/1	(^.{21})([^0]{2})	(non-conforming)
+!:mime	application/marc
diff --git a/magic/Makefile.am b/magic/Makefile.am
index c389f096..3c5a8eb9 100644
--- a/magic/Makefile.am
+++ b/magic/Makefile.am
@@ -1,5 +1,5 @@
 #
-# $File: Makefile.am,v 1.72 2011/08/17 17:37:18 christos Exp $
+# $File: Makefile.am,v 1.73 2011/09/08 21:58:42 christos Exp $
 #
 MAGIC_FRAGMENT_BASE = Magdir
 MAGIC_DIR = $(top_srcdir)/magic
@@ -119,6 +119,7 @@ $(MAGIC_FRAGMENT_DIR)/macintosh \
 $(MAGIC_FRAGMENT_DIR)/magic \
 $(MAGIC_FRAGMENT_DIR)/mail.news \
 $(MAGIC_FRAGMENT_DIR)/maple \
+$(MAGIC_FRAGMENT_DIR)/marc21 \
 $(MAGIC_FRAGMENT_DIR)/mathcad \
 $(MAGIC_FRAGMENT_DIR)/mathematica \
 $(MAGIC_FRAGMENT_DIR)/matroska \