Tantivy is a full text search engine library written in rust. It is closer to Lucene than to Elastic Search and Solr in the sense it is not an off-the-shelf search engine server, but rather a crate that can be used to build such a search engine.
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Its features include: <BR>
<ul>
<li>Full-text search</li>
<li>Configurable tokenizer (stemming available for 17 Latin languages with third party support for Chinese (<a href="https://crates.io/crates/tantivy-jieba" target="_blank" rel="nofollow">tantivy-jieba</a> and <a href="https://crates.io/crates/cang-jie" rel="nofollow">cang-jie</a>), Japanese (<a href="https://github.com/lindera-morphology/lindera-tantivy">lindera</a> and <a href="https://crates.io/crates/tantivy-tokenizer-tiny-segmenter" rel="nofollow">tantivy-tokenizer-tiny-segmenter</a>) and Korean (<a href="https://github.com/lindera-morphology/lindera-tantivy">lindera</a> + <a href="https://github.com/lindera-morphology/lindera-ko-dic-builder">lindera-ko-dic-builder</a>)</li>
<li>Fast (check out the <g-emoji class="g-emoji" alias="racehorse" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f40e.png">🐎</g-emoji> <g-emoji class="g-emoji" alias="sparkles" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/2728.png">✨</g-emoji> <a href="https://tantivy-search.github.io/bench/" rel="nofollow">benchmark</a> <g-emoji class="g-emoji" alias="sparkles" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/2728.png">✨</g-emoji> <g-emoji class="g-emoji" alias="racehorse" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f40e.png">🐎</g-emoji>)</li>
<li>Tiny startup time (&lt;10ms), perfect for command line tools</li>
<li>BM25 scoring (the same as Lucene)</li>
<li>Natural query language (e.g. <code>(michael AND jackson) OR "king of pop"</code>)</li>
<li>Phrase queries search (e.g. <code>"michael jackson"</code>)</li>
<li>Incremental indexing</li>
<li>Multithreaded indexing (indexing English Wikipedia takes &lt; 3 minutes on my desktop)</li>
<li>Mmap directory</li>
<li>SIMD integer compression when the platform/CPU includes the SSE2 instruction set</li>
<li>Single valued and multivalued u64, i64, and f64 fast fields (equivalent of doc values in Lucene)</li>
<li><code>&amp;[u8]</code> fast fields</li>
<li>Text, i64, u64, f64, dates, and hierarchical facet fields</li>
<li>LZ4 compressed document store</li>
<li>Range queries</li>
<li>Faceted search</li>
<li>Configurable indexing (optional term frequency and position indexing)</li>
<li>Cheesy logo with a horse</li>
</ul>

Tantivy is a full text search engine library written in rust. It is closer to Lucene than to Elastic Search and Solr in the sense it is not an off-the-shelf search engine server, but rather a crate that can be used to build such a search engine.

Tantivy - Full-text search engine library inspired by Lucene and written in Rust

The open source project strus provides a collection of C++ (C++98) libraries and command line tools for building a full-text search engine. The strus search engine can be build using any key value store database that provides an upper bound seek function for the stored key/value pairs. Currently there exists an implementation based on the LevelDB library.

Strus - Full text Search Engine in C++

Lucene++ is an up to date C++ port of the popular Java Lucene library, a high-performance, full-featured text search engine.

LucenePlusPlus - C++ port of the popular Java Lucene library

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Tantivy - Full-text search engine library inspired by Lucene and written in Rust

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