Fuzzy String Scoring Utility

Command-score is a JavaScript utility designed for fuzzy string matching, providing a numerical 'matchiness' score between 0 and 1 for a given query and target string. It was developed for use in autocompletion contexts within the Superhuman email client, where the set of potential results is relatively bounded. The library's scoring algorithm prioritizes various factors, including exact matches, case sensitivity, prefix matches, and penalties for word or character jumps and transpositions within the query. Scores are primarily comparable when the query remains constant across different target strings, allowing for a secondary sort on top of matchiness. The latest version, 0.1.2, was published in June 2016, and the project has seen no significant code updates since, indicating it is no longer actively maintained. As such, it does not support modern JavaScript module systems (ESM) natively.