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-rw-r--r--magic/Magdir/dif33
-rw-r--r--magic/Magdir/diff41
2 files changed, 74 insertions, 0 deletions
diff --git a/magic/Magdir/dif b/magic/Magdir/dif
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+
+#------------------------------------------------------------------------------
+# $File: dif,v 1.1 2020/04/09 19:14:01 christos Exp $
+# dif: file(1) magic for DIF text files
+
+#------------------------------------------------------------------------------
+# From: Joerg Jenderek
+# URL: http://en.wikipedia.org/wiki/Data_Interchange_Format
+# http://fileformats.archiveteam.org/wiki/Data_Interchange_Format
+# Note: called by TrID "Data Interchange Format",
+# by DROID x-fmt/368 "VisiCalc Database"
+0 string TABLE
+# skip text starting with TABLE by looking for numeric version on 2nd line
+>6 search/2 0,
+# skip DROID x-fmt-41-signature-id-380.dif by looking for key word TUPLES at the beginning
+>>27 search/128 TUPLES Data Interchange Format
+# https://www.pcmatic.com/company/libraries/fileextension/detail.asp?ext=dif.html
+#!:mime application/x-dif-spreadsheet Gnumeric
+# https://github.com/LibreOffice/online/blob/master/discovery.xml
+#!:mime application/x-dif-document LibreOffice
+# https://www.wikidata.org/wiki/Wikidata:WikiProject_Informatics/File_formats/Lists/File_formats
+!:mime application/x-dif
+# https://extension.nirsoft.net/dif
+#!:mime application/vnd.ms-excel
+#!:mime text/plain
+!:ext dif
+# look for double quote 0x22 on 3rd line
+>>>10 search/3 "
+# skip if next character also double quote
+>>>>&0 ubyte !0x22 \b, generator or table name
+# comment like EXCEL, pwm enclosed in double quotes
+>>>>>&-2 string x %s
+
diff --git a/magic/Magdir/diff b/magic/Magdir/diff
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+++ b/magic/Magdir/diff
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+
+#------------------------------------------------------------------------------
+# $File: diff,v 1.17 2020/08/22 18:16:58 christos Exp $
+# diff: file(1) magic for diff(1) output
+#
+0 search/1 diff\040 diff output text
+!:mime text/x-diff
+0 search/1 ***\040
+>&0 search/1024 \n---\040 context diff output text
+!:mime text/x-diff
+0 search/1 Only\040in\040 diff output text
+!:mime text/x-diff
+0 search/1 Common\040subdirectories:\040 diff output text
+!:mime text/x-diff
+
+0 search/1 Index: RCS/CVS diff output text
+!:mime text/x-diff
+
+# bsdiff: file(1) magic for bsdiff(1) output
+0 string/b BSDIFF40 bsdiff(1) patch file
+
+
+# unified diff
+0 search/4096 ---\040
+>&0 search/1024 \n
+>>&0 search/1 +++\040
+>>>&0 search/1024 \n
+>>>>&0 search/1 @@ unified diff output text
+!:mime text/x-diff
+!:strength + 90
+
+# librsync -- the library for network deltas
+#
+# Copyright (C) 2001 by Martin Pool. You may do whatever you want with
+# this file.
+#
+0 belong 0x72730236 rdiff network-delta data
+
+0 belong 0x72730136 rdiff network-delta signature data
+>4 belong x (block length=%d,
+>8 belong x signature strength=%d)