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From: "Costello, Roger L." <costello@mitre.org>
Newsgroups: comp.compilers
Subject: Parsing and unparsing file formats using DFDL (Data Format Description Language)
Date: Mon, 1 Jul 2019 16:57:23 +0000
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Hi Folks,

DFDL is a standards-based XML language for parsing data formats, both text and
binary formats.

Using DFDL you can parse just about anything.

The output of parsing is an XML (or JSON) document, representing the input
file.

Not only can DFDL parse data files, it can also unparse the XML (or JSON) to
reconstitute the original data format.

Example: JPEG --> DFDL --> XML --> DFDL --> JPEG

DFDL is pretty neat. I created several tutorials about it and how to use it:

http://www.xfront.com/DFDL/index.html

/Roger