RProtoBuf 0.3.0

July 15, 2013

(This article was first published on Thinking inside the box , and kindly contributed to R-bloggers)

A new release of
— now at version 0.3.0 —
arrived earlier on CRAN.
provides GNU R
bindings for the
Google Protobuf data encoding
library used and released by Google.

Murray added a lot of new features
which merited the increase in the minor number. The NEWS file entry follows below:

Changes in RProtoBuf version 0.3 (2013-07-13)

  • Added support for Protocol Buffer extensions through the new
    getExtension and setExtension methods for Message objects, and added
    top-level extensions to the descriptor pool.

  • Added more user-friendly show() methods for Messages,
    Descriptors, and other RProtoBuf objects. A common source of
    confusion on the mailing lists is to confuse Messages and
    Descriptors. The new show() methods succinctly display more
    information about e.g. the number of set fields in a message to
    make it a little clearer to users what type of object they are
    working with.

  • Added has method for EnumDescriptor objects to test existance
    of a named constant in an enumeration, and fix a bug in the length
    method for these objects.

  • Added a number method for EnumValueDescriptor objects to
    return the number of a named enumeration constant directly.

  • Improved documentation and unit tests.

CRANberries also provides a

diff to the previous release 0.2.6
More information is at the
page which has a
draft package vignette,
a ‘quick’ overview vignette
and a
unit test summary vignette.
Questions, comments etc should go to the
rprotobuf mailing list
off the RProtoBuf page at R-Forge.

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