The bytestring-trie package

[Tags:bsd3, library]

An efficient finite map from (byte)strings to values.

The implementation is based on big-endian patricia trees, like Data.IntMap. We first trie on the elements of Data.ByteString and then trie on the big-endian bit representation of those elements. Patricia trees have efficient algorithms for union and other merging operations, but they're also quick for lookups and insertions.

If you are only interested in being able to associate strings to values, then you may prefer the hashmap package which is faster for those only needing a map-like structure. This package is intended for those who need the extra capabilities that a trie-like structure can offer (e.g., structure sharing to reduce memory costs for highly redundant keys, taking the submap of all keys with a given prefix, contextual mapping, extracting the minimum and maximum keys, etc.)


Versions 0.1, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.2.2, 0.2.3, 0.2.4,
Dependencies base (<2.2 || >=3 && <5), binary, bytestring [details]
License BSD3
Copyright Copyright (c) 2008--2011 wren ng thornton
Author wren ng thornton
Stability provisional
Category Data, Data Structures
Home page
Source repository head: darcs get
Uploaded Sat Feb 12 11:07:27 UTC 2011 by WrenThornton
Distributions Fedora:, LTSHaskell:, NixOS:, Stackage:, Tumbleweed:
Downloads 7431 total (22 in the last 30 days)
0 []
Status Docs uploaded by user
Build status unknown [no reports yet]




base4base-4.0 emits "Prelude deprecated" messages in order to get people to be explicit about which version of base they use.EnabledAutomatic
usecinternalUse optimized C implementation for indexOfDifference. See notes in Data.Trie.ByteStringInternal.DisabledAutomatic
applicativeinbaseApplicative functors were added in base-2.0EnabledAutomatic
bytestringinbaseThe bytestring library was included in base-2.0 and base-2.1.1, but for base-1.0 and base-3.0 it was a separate packageDisabledAutomatic

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