Introduction: What Is Text Editing All About? -- The Basic Get_Line -- The Forest -- Questions to Probe Your Understanding -- Chapeter 1: Users -- User Categories -- "Religion" -- User Goals -- Physiological Constraints -- Applying These Physiological Constraints -- Users Who Have Handicaps -- Questions to Probe Your Understanding -- 2: User Interface Hardware -- Display Types -- Keyboards -- Graphical Input -- Communications Path Issues -- Questions to Probe Your Understanding -- 3: Implementation Languages -- General Considerations -- Specific Language Notes -- Questions to Probe Your Understanding -- Chpater 4: Editing Models -- One-Dimensional Array of Bytes -- Two-Dimensional Array of Bytes -- List of Lines -- Paged Models -- Objects -- Dealing with Real Text -- Questions to Probe Your Understanding -- 5: File Formats -- Text Files -- Binary Files -- Structured Files -- Where to Store the "Extra" information -- The Additional Information -- Internalization -- Questions to Probe Your Understanding -- 6: The Internal Sub-Editor -- Basic Concepts and Definitions -- Internal Data Structures -- Procedure Interface Definitions -- Characteristics of Implementation Methods -- Implementation Method Overview -- Buffer Gap -- Linked Line -- Paged Buffer Gap -- Other Methods -- Method Comparisons -- Editing Extremely Large Files -- Difference Files -- Questions to Probe Your Understanding -- Chpater 7: Redisplay -- Constraints -- Procedure Interface Defenitions -- Considerations -- Redisplay Itself -- Questions to Probe Your Understanding -- 8: User-Oriented Commands: The Command Loop -- The Core Loop: Read, Evaluate, Print -- Errors -- Arguments -- Rebinding -- Modes -- Changing Your Mind -- Macros -- Question to Probe Your Understanding -- 9: Command Set Design -- Responsiveness -- Consistency -- Permissiveness -- Progress -- Simplicity -- Uniformity -- Extensibility -- Modes -- Use of Language -- Guideline Summary -- Structure Editors -- Programming Assistance -- Command Behavior -- Questions to Probe Your Understanding -- 10: Emacs-Type Editors -- "What Do You Mean, 'Emacs-type?'" -- The Command Set -- The Extended Environment -- Extensibility -- Questions to Probe Your Understanding -- Epilogue -- Questions to Probe Your Understanding -- Appendix A: A Five-Minute Introduction to C -- Case Conventions -- Data Types and Declarations -- Constants -- Pre-Defined Constants -- Procedure Structure -- Statements -- Operators -- Standard Library Functions Used in This Book -- Non-Standard Library Functions Used in This Book -- Appendix B: Emacs Implementations -- Acronyms -- Implementations Mentioned in My Thesis (Pre-1980) -- GNU-Emacs -- What Is Copyleft? -- Newer Implementations Available for No Charge -- Newer Implementations Sold by Vendors -- Appendix C: The Emacs Command Set -- Notation -- Default GNU-Emacs Command List -- Help Commands -- Control-X (^X) Commands -- Control-X 4 Commands -- Meta (^ [) Commands -- The Author' Command Set -- Appendix D: The TECO Command Set -- General Notation -- E-Commands -- F-Commands -- FS-Variables -- Appendix E: ASCII Chart.