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Date: Fri, 18 Oct 1996 17:42:28 +0300 (EDT)
From: flexstor@ozone.FMI.FI
To: IANA@isi.edu
Subject: Registration of MIME media type Text/vnd.fmi.flexstor
MIME media type name: Text
MIME subtype name: vnd.FMI.FLEXSTOR
Required parameters: none
Optional parameters: version-major, version-minor, charset,
table-prefix, table-minor, table-major
version-major is MAJOR number from the first line
flexstor MAJOR MINOR
version-minor is MINOR number from the first line
flexstor MAJOR MINOR
charset is a coded character set used in the media type.
Because flexstor's grammar allows only use of
US-ASCII, only comments may contain characters
beyond US-ASCII.
This registration refers flexstor format with MAJOR = 1
and MINOR = 0.
In the first line of flexstor -format there may be also
information on used symbol table and version of symbol
table. In that case the first line is
flexstor MAJOR MINOR TABLE_PREFIX TABLEMINOR TABLEMAJOR
table-prefix is TABLE_PREFIX from the first line
flexstor MAJOR MINOR TABLE_PREFIX TABLEMINOR TABLEMAJOR
table-minor is TABLEMINOR from the first line
flexstor MAJOR MINOR TABLE_PREFIX TABLEMINOR TABLEMAJOR
table-major is TABLEMAJOR from the first line
flexstor MAJOR MINOR TABLE_PREFIX TABLEMINOR TABLEMAJOR
Notice: File-name should be given in
Content-Disposation -header, as described
in RFC 1806:
1806 E R. Troost, S. Dorner, "Communicating Presentation Information in
Internet Messages: The Content-Disposition Header", 06/07/1995.
(Pages=8) (Format=.txt)
Encoding considerations:
FLEXSTOR is US-ASCII only format, but it allows
very long lines. If there are lines not too long
and there are no characters beyond US-ASCII in
comments, then '7bit' encoding is sufficient.
If there are lines too long, then 'quoted-printable'
encoding can be used.
Security considerations:
FLEXSTOR format is a data format and does not include
executable code in any form. 'include' directive
allows refering to other files. Parser of FLEXSTOR
should check that no references otside the allowed
data directory tree occur.
Interoperability considerations:
It is of great importance that both data providers
and developers of data analysis tools agree on a symbol
name and identifier convention and stick to it. In
practice this means that document, which describes
the used symbol table, is required.
Published specification:
Flexstor format ducument with MAJOR = 1 and MINOR = 0
is available with
<URL: http://www.ozone.fmi.fi/flexstor/flexstor_1.html >
<URL: http://www.ozone.fmi.fi/flexstor/flexstor_1.ps >
( Latest version of this document are available with
<URL: http://www.ozone.fmi.fi/flexstor/flexstor_current.html >
<URL: http://www.ozone.fmi.fi/flexstor/flexstor_current.ps >
)
Applications which use this media type:
UVRAPPF / SUVDAMA database (uv.fmi.fi)
Additional information:
Magic number(s): Format starts with string "flexstor".
File extension(s): Generally "flx", but documents describing
certain symbol table may allocate their
own set of extensions.
Macintosh File Type Code(s): none
The canonical format:
Flexstor data format treats CRLF, CR and LF as end of line.
End of line presentation for the canonical format is CRLF.
In canonical format CR and LF is not allowed outside of
end of line.
Rationale for version numbers of FLEXSTOR format:
If the parser detects the MINOR number and only the MINOR
number to be greater than the one(s) the parser supports,
it knows that it perhaps fails parsing the file. However,
if it succeeds in parsing the file, it knows that the resulting
interpretation is the same as intended by the data submitter.
If the parser detects the MAJOR number to be greater than the
one(s) the parser supports, it knows that parsing of the file,
even when performed succesfully, does not result in an
interpretation guaranteed to be the same as intended by the data
submitter.
Person & email address to contact for further information:
flexstor@ozone.FMI.FI
Kari E. Hurtta <Kari.Hurtta@FMI.FI>
Arve Kylling <arve.kylling@itek.norut.no>
Intended usage: LIMITED USE
This is intended to use in
SUVDAMA <URL: http://www.ozone.fmi.fi/SUVDAMA/ > and
UVRAPPF <URL: http://www.ozone.fmi.fi/UVRAPPF/ > -projects.
This media type is useful both in MIME mail and in HTTP -protocol
(WWW).
Author/Change controller:
flexstor@ozone.FMI.FI
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