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Viper Is a Package for Emacs Rebels

2. Improvements over Vi

Some common problems with Vi and Ex have been solved in Viper. This includes better implementation of existing commands, new commands, and the facilities provided by Emacs.

2.1 Basics		Basic Viper differences, Multi-file effects.
2.2 Undo and Backups		Multiple undo, auto-save, backups and changes
2.3 History		History for Ex and Vi commands.
2.4 Macros and Registers		Keyboard Macros (extended ".") @reg execution.
2.5 Completion		Filename and Command Completion for Ex.
2.6 Improved Search		Incremental Search and Buffer Content Search.
2.7 Abbreviation Facilities		Normal Abbrevs, Templates, and Dynamic Abbrevs.
2.8 Movement and Markers		Screen Editor movements, viewing textmarkers.
2.9 New Commands		Commands that do not exist in Vi.
2.10 Useful Packages		A Sampling of some Emacs packages, and things you should know about.