GEL - Graph Exchange Language

I am glad to announce the availability of GEL (Graph Exchange
Language) and its C implementation.


GEL is an acronym for "Graph Exchange Language". It can be used for the
efficient exchange of (typed, directed, labeled) graphs between components
of a (distributed) system. Compared with naive approaches, the advantages
of GEL are:


* Sharing and cycles appearing in internal datastructures can be retained
          across the components


* The components exchanging the graph may be implemented in any language,
          because the GEL encodings of graphs are in a language-independent
          byte-encoding.


* GEL contains a <em>dynamic</em> abbreviation mechanism, allowing short
          abbreviations without imposing a system-wide abbreviation scheme


* The dynamics of the abbreviation mechanism causes GEL to be
          <em>compositional</em>, i.e. in some common cases, GEL representations
          composite datastructures may be textually composed of GEL representations
          of the elements


* GEL encodings are completely self-contained, allowing the implementation
          of general-purpose graph-browsers, analyzers, compressors, etcetera.


GEL and its documentation can be obtained as follows:


WWW: http://www.cwi.nl/~jasper/epic/gel/
FTP: ftp.cwi.nl pub/gipe/sources/GEL.tar.Z


For reactions, please use e-mail


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Email: Jasper.Kamperman@cwi.nl SnailMail:
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