macos
slap: Sublime-like terminal-based text editor (Free program)
slap is a Sublime-like terminal-based text editor that strives to make editing from the terminal easier. It has: features * first-class mouse support (even over an SSH connection) * a Sublime-like file sidebar * double-click to select word, highlight other occurrences * configurable Sublime-like keybindings* (Ctrl+S save, Ctrl+Z undo, etc.) * copying/pasting