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Fuzzy String Matching -- Approximate Text Similarity

How similar are the words "Hello" and "Hallo"? By editing 1 of the 5 letters ("e" to "a") you get the same string. That's a similarity of 80% according to the Levenshtein Edit Distance. Use this and other scientific string similarity methods to quickly match or validate strings approximately.

FuzzyString function library enables you to

automatically fix user typos
build a robust text search (e.g., for tech trees, unlocks or shop system)
filter in-game chat

Tutorial & Documentation | Support Forum

Changelog:

2022-12-11: UE 5.1 compatibility update.

2022-09-22: Fixed critical crash under UE4.26 and UE4.27 (UE5.0 was not affected). Pease update if you installed it before.

Technical Details

Features:

Easy calculation of fuzzy string similarity in C++ or Blueprints
Six scientifically established string distance methods: Levenshtein Edit Distance, Optimal Alignment, Token Set, Token Sort, Weighted Ratio and Longest Common Substring
Plug and Play, with no setup
Works in any Blueprints
Comprehensive documentation
All C++ code is fully documented and source-open

Code Modules:

FuzzyStringLibrary (Runtime)

Number of Blueprints: 1

Number of C++ Classes: 2

Network Replicated: N/A

Supported Development Platforms: Windows, Mac

Supported Target Build Platforms: Windows, Mac

Documentation: https://maschere.github.io/asset-documentation/fuzzy-string/

Example Project: Demo widget and demo level included in plugin content folder.

Important/Additional Notes: This plugin is partially based on the excellent, MIT licensed rapidfuzz-cpp library.

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Platforms	Windows 64-bit, MacOS
UE Versions	4.26 - 4.27, 5.0 - 5.1
Tags	MODULAR, STRINGS, BLUEPRINTS, RETRIEVAL, DIFFERENCE, USER FRIENDLY, DISTANCE, UX UI, FUNCTION LIBRARY, SEARCH, USER EXPERIENCE, FILTER, SCIENCE, CHAT
Release date	16.06.2022