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dcodeIO edited this page Sep 8, 2014 · 4 revisions

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Changes in version 3 of the specification

Progressive dictionary support has been dropped, as it is too costly in production systems anyway. As a result, the token %xFE (previously STRING_ADD) has been redefined to represent the JavaScript constant undefined (see 2.6.).

Additionally to the raw PSON format, streaming of PSON chunks has been defined (see 7.). The streaming format includes an option to send control sequences in between, indicated by a chunk size of zero followed by arbitrary control data. Control sequences for example may be used by the encoding side to extend, clear or reset the dictionary on the decoding side. The exact implementation here is left open to the developer.

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