1 2#------------------------------------------------------------------------------ 3# $File: dif,v 1.1 2020/04/09 19:14:01 christos Exp $ 4# dif: file(1) magic for DIF text files 5 6#------------------------------------------------------------------------------ 7# From: Joerg Jenderek 8# URL: http://en.wikipedia.org/wiki/Data_Interchange_Format 9# http://fileformats.archiveteam.org/wiki/Data_Interchange_Format 10# Note: called by TrID "Data Interchange Format", 11# by DROID x-fmt/368 "VisiCalc Database" 120 string TABLE 13# skip text starting with TABLE by looking for numeric version on 2nd line 14>6 search/2 0, 15# skip DROID x-fmt-41-signature-id-380.dif by looking for key word TUPLES at the beginning 16>>27 search/128 TUPLES Data Interchange Format 17# https://www.pcmatic.com/company/libraries/fileextension/detail.asp?ext=dif.html 18#!:mime application/x-dif-spreadsheet Gnumeric 19# https://github.com/LibreOffice/online/blob/master/discovery.xml 20#!:mime application/x-dif-document LibreOffice 21# https://www.wikidata.org/wiki/Wikidata:WikiProject_Informatics/File_formats/Lists/File_formats 22!:mime application/x-dif 23# https://extension.nirsoft.net/dif 24#!:mime application/vnd.ms-excel 25#!:mime text/plain 26!:ext dif 27# look for double quote 0x22 on 3rd line 28>>>10 search/3 " 29# skip if next character also double quote 30>>>>&0 ubyte !0x22 \b, generator or table name 31# comment like EXCEL, pwm enclosed in double quotes 32>>>>>&-2 string x %s 33 34