Lingua 1.6.2

Improvements

• Type stubs for the Python bindings are now available, allowing better static code analysis, better code completion in supported IDEs and easier understanding of the library's API.

Bug Fixes

• The method LanguageDetector.detect_multiple_languages_of still returned character indices instead of byte indices when only a single DetectionResult was produced. This has been fixed.

Lingua 1.6.1

Bug Fixes

• The method LanguageDetector.detect_multiple_languages_of returns byte indices. For creating string slices in Python and JavaScript, character indices are needed but were not provided. This resulted in incorrect DetectionResults for Python and JavaScript. This has been fixed now by converting the byte indices to character indices. (pemistahl/lingua-py#192)

• Some minor bugs in the WASM module have been fixed to prepare the first release of Lingua for JavaScript.

Lingua 1.6.0

Features

• Python bindings are now available for the library. These bindings replace the pure Python implementation of Lingua in order to benefit from Rust's performance in any Python software. (#262)

• Parallel equivalents for all methods in LanguageDetector have been added to give the user the choice of using the library single-threaded or multi-threaded. (#271)

Bug Fixes

• Several bugs in multiple languages detection have been fixed that caused incomplete results to be returned in several cases.

• A significant amount of Kazakh texts were incorrectly classified as Mongolian. This has been fixed.

Lingua 1.5.0

Features

• The new method LanguageDetector.detect_multiple_languages_of() has been introduced. It allows to detect multiple languages in mixed-language text. (#1)

• The new method LanguageDetectorBuilder.with_low_accuracy_mode() has been introduced. By activating it, detection accuracy for short text is reduced in favor of a smaller memory footprint and faster detection performance. (#119)

• The new method LanguageDetector.compute_language_confidence() has been introduced. It allows to retrieve the confidence value for one specific language only, given the input text. (#102)

Improvements

• The computation of the confidence values has been revised and the softmax function is now applied to the values, making them better comparable by behaving more like real probabilities. (#120)

• The WASM API has been revised. Now it makes use of the same builder pattern as the Rust API. (#122)

• The language model files are now compressed with the Brotli algorithm which reduces the file size by 15 %, on average. (#189)

• The language model ngrams are now stored in a CompactString type which reduces the amount of consumed memory by 20 %. (#198)

• Several performance optimizations have been applied which makes the library nearly twice as fast as the previous version. Big thanks go out to @serega and @koute for their help. (#82, #148, #177)

• The enums IsoCode639_1 and IsoCode639_3 now implement some new traits such as Copy, Hash and Serde's Serialize and Deserialize. The enum Language now implements Copy as well. (#175)

Lingua 1.4.0

Features

• The library can now be compiled to WebAssembly and be used in any JavaScript project. Big thanks to @martindisch for bringing this forward. (#14)

Improvements

• Some minor performance tweaks have been applied to the rule engine.

Lingua 1.3.3

Bug Fixes

• This release updates outdated dependencies and fixes an incompatibility between different versions of the include_dir crate which are used in the main lingua crate and the language model crates.

Lingua 1.3.2

Bug Fixes

• Another compilation error has been fixed which occurred when the Latin language was left out as Cargo feature.

Lingua 1.3.1

Bug Fixes

• When Chinese, Japanese or Korean were left out as Cargo features, there were compilation errors. This has been fixed.

Lingua 1.3.0

Features

• The language model dependencies are separate Cargo features now. Users can decide which languages shall be downloaded and used in the library. (#12)

Improvements

• The code that does the lazy-loading of the language models has been refactored significantly, making the code more stable and less error-prone.

Bug Fixes

• In very rare cases, the language returned by the detector was non-deterministic. This has been fixed. Big thanks to @asg0451 for identifying this problem. (#17)

Lingua 1.2.2

Features

• The enums Language, IsoCode639_1 and IsoCode639_3 now implement std::str::FromStr in order to instantiate enum variants by string values. This comes in handy for JavaScript bindings and the like. (#15)

Improvements

• The performance of preloading the language models has been improved.

Bug Fixes

• Language detection for sentences with more than 120 characters was supposed to be done by iterating through trigrams only but this was never the case. This has been corrected.