chzyer/readline: Readline is a pure go(golang) implementation for GNU-Readline kind library — Readline for Go

component/textarea-caret-position: xy coordinates of a textarea or input's caret — Caret position on screen for placing menus and other autocomplete popups near the cursor.

alecthomas/chroma: A general purpose syntax highlighter in pure Go — Syntax highlighting engine for Go. It would be nice to be able to integrate this into the wiki.