Emacs helm mode: https://github.com/emacs-helm/helm https://github.com/emacs-helm/helm . In Emacs, usually a language support library (like ensime, ycmd or ggt

Emacs helm mode: https://github.com/emacs-helm/helm https://github.com/emacs-helm/helm . In Emacs, usually a language support library (like ensime, ycmd or ggtags) just give you a list of things user can choose from. This list is often passed to a function like completing-read. You choose the implementation for complete-read. Helm is a very good option for fuzzy matching implementation. There are more advanced options like icicles, that let you switch between completion modes (including fuzzy) on the fly.