Let's say I have a std::String, contents unknown, that like "Mañana" has combining characters and I want to convert it to unicode NFC, a la String.prototype.normalize in Javascript or unicodedata.normalize in Python.
I found this crate on crates.io but it seems to contain only methods for working with individual characters. How would I convert an entire string? Convert to bytes and iterate pairwise and check for combining characters using the functions in that crate? What would that even look like in rust?
You can indeed use the unicode_normalization crate. More specifically, check out the nfc method.
Example:
"Mañana".nfc().collect::<String>()