bistring

The bistring library offers a non-destructive interface for string processing, enabling operations such as normalization, case folding, and find/replace while retaining the original string and mapping between modified and original substrings. It's useful for developers needing to manipulate strings with complex characters, including Unicode and emojis, in a variety of programming languages, currently supporting Python and JavaScript/TypeScript. Notable features include easy substring extraction and the ability to apply multiple transformations without losing the context of the original content.