The bson package

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A BSON Document is an untyped (dynamically type-checked) record. I.e. it is a list of name-value pairs, where a Value is a single sum type with constructors for basic types (Bool, Int, Float, String, and Time), compound types (List, and (embedded) Document), and special types (Binary, Javascript, ObjectId, RegEx, and a few others). A BSON Document is serialized to a standard binary encoding defined at This implements version 1 of that spec.


Versions0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.1, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.7, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.3, 0.3.1, 0.3.2,,,,
Dependenciesbase (<5), binary (>=0.5 && <0.9), bytestring, cryptohash, data-binary-ieee754, mtl (>=2), network, text (>=0.11), time [details]
CopyrightCopyright (c) 2010-2012 10gen Inc.
AuthorTony Hannan
MaintainerFedor Gogolev <>, Greg Weber <>
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UploadedSun Aug 28 05:06:28 UTC 2016 by VictorDenisov




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