file/magic/Magdir/sosi

#------------------------------------------------------------------------------
# $File: sosi,v 1.2 2021/02/23 00:51:10 christos Exp $
# SOSI
# Summary: Systematic Organization of Spatial Information
# Long description: Norwegian text based map format
# File extension: .sos
# Full name:    Petter Reinholdtsen (pere@hungry.com)
# Reference: https://en.wikipedia.org/wiki/SOSI
#
# Example SOSI files available from
# https://trac.osgeo.org/gdal/ticket/3638
# https://nedlasting.geonorge.no/geonorge/Basisdata/N50Kartdata/SOSI/
# https://nedlasting.geonorge.no/geonorge/Samferdsel/Elveg/SOSI/
#
# Start with optional comments (from "!" to the next line end)
# followed by ".HODE" and end with "\n.SLUTT" followed by an optional
# separator (any number of " ", "\t", "\n" or "\r"), might have BOM at
# the start and following ".HODE" near the start there is "..OMR=C3=85DE"
# (either UTF-8, ISO-8859-1 or some 7 bit Norwegian charset based on
# ASCII) , "..TRANSPAR", "..TEGNSETT " followed by the charset and a
# separator, as well as "..SOSI-VERSJON " followed by the format
# version and a separator.
#
# FIXME figure out how to accept any of [space], [tab], [newline] and
# [carriage return] as separators, not only line end.

# Not searching for full "OMR=C3=85DE" to match also for non-UTF-8
# character sets
0	search	..OMR
>0	search	..TRANSPAR
>>0       search  .HODE           SOSI map data
>>>&0      search  ..SOSI-VERSJON
>>>>&1	string	x		\b, version %s
# FIXME could not figure out way to make a match for .SLUTT at the end required
#>-7      string  \n.SLUTT	slutt
#>-8      string  \n.SLUTT\n	slutt-nl
#>-9      string  \n.SLUTT\r\n	slutt-crnl2
!:mime text/vnd.sosi
!:ext sos