Exposes predefined Unicode normalization functions that are required by many protocols. This is just a binding to ICU, which is said to be fast.
npm i node-stringprep apt-get install libicu-dev emerge icu
port install icu +devel brew install icu4c ln -s /usr/local/Cellar/icu4c/<VERSION>/bin/icu-config /usr/local/bin/icu-config ln -s /usr/local/Cellar/icu4c/<VERSION>/include/unicode /usr/local/include If experiencing issues with 'homebrew' installing version 50.1 of icu4c, try the following:
brew search icu4c brew tap homebrew/versions brew versions icu4c cd $(brew --prefix) && git pull --rebase git checkout c25fd2f $(brew --prefix)/Library/Formula/icu4c.rb brew install icu4c var StringPrep = require('node-stringprep').StringPrep; var prep = new StringPrep('nameprep'); prep.prepare('Äffchen') // => 'äffchen' For a list of supported profiles, see node-stringprep.cc