Talvez confira os recursos de preenchimento automático incorporados no Notepad ++ 5 e acima.
Notepad++ has autocompletion capabilities, allowing it to finish a word that you are typing by giving a list of possible options, or immediately inserting it when only one possibility is left (powered by the Scintilla component).
There are two types of auto completion:
The first one uses a list of well known keywords and provides a hint based on that and goes by the name Function Completion. It is triggered by selecting Edit->Auto-Completion->Function Completion or automatically when a certain amount of characters is typed (see also Preferences).
The second one retrieves all the words from the current file and provides hinting on that, named Word Completion. This is triggered by selecting Edit->Auto-Completion->Word Completion, or by entering a set number of characters (again, see Preferences). Word completion is the only type that can automatically finish a word without displaying a list of options first.