Emacs. All. Index

Emacs Main. Table of Contents

Quick Start

• Download
• Show Version
• Launch
• Exit
• Graphical Menu
• Basic Key Shortcuts
• How-To
• Fun Features
• Microsoft Windows Tips

Font

• Change Font Size

Split Window

• Split Window

File

• Open, Save, Save As, Close, Quit
• File Manager, dired
• Batch Rename Files
• Bookmark
• Open Recently Opened File

Buffer

• List Buffers
• Switch Buffer

Copy Paste

• Select Text (mark and region)
• Copy Paste, kill-ring
• Copy to Register

Search Text

• Search Text
• Highlight Word, Line
• List Matching Lines
• Search Text in Directory

Find Replace

• Find Replace in Current File
• Find Replace Text in Directory
• Regular Expression

Unicode

• File Encoding
• Insert Unicode Character
• Input Method
• Newline Convention

Whitespace

• Indentation Commands
• Delete Trailing Whitespace
• Show Whitespaces

Sort

• Sort Lines

Rectangle Edit

• Comment, Uncomment
• Edit Column Text, Rectangle
• Align Text Column

Shell

• Run Shell in Emacs

View Special File

• View Image File
• Show Image Thumbnails
• View Info Page
• View man Page
• Eww Web Browser

Org Mode

• Outline, org-mode Intro

Name Completion

• Icomplete, Minibuffer Name Completion
• fido-mode (Minibuffer Name Completion)
• fido-mode vs icomplete-mode

• Name Completion
• Hippie Expand
• Abbrev Mode

Emacs Efficiency

• Key Macro
• Jump to Previous Position
• Repeat Last Command
• Fullscreen vs Multiple Windows
• Narrow to Region
• Master Tips

Misc

• Terminal vs Graphical User Interface
• Command to Open Menu
• Emergency vim Tutorial
• Chinese Input
• Spell Check
• Edit Tables
• Version Control Commands (git)

• Bold, Underline, Color Texts (Persistent Highlight)
• File Variables (Run Elisp Code When File Opens)

Emacs Principles

• Principle, Command, Keys
• Jargons (Glossary)
• Minibuffer
• Mode Line
• Universal Argument (prefix arg)

Emacs Init Setup. Table of Contents

Init Basics

• Intro
• File Location
• Sample Init
• Ignore Init File

• Set Default Window (frame) Size

Font

• Setup Font

Keys

• Which Key Mode

Text Editing

• Type Overwrite Selection
• Tab, Indent
• Auto Insert Closing Bracket (electric-pair-mode)
• isearch Whitespace Regex
• Move Cursor by camelCase, snake_case (subword-mode)

Completion

• Icomplete Mode
• Hippie Expand
• Abbrev Mode

File

• Set Default File Encoding
• Emacs: Refresh, Revert File
• Set Default Major Mode
• Dired Config

Restore Things

• Restore Opened Files (desktop-save-mode)
• Save Cursor Position
• Save Command History

Backup, Auto Save

• Emacs: Real Automatic Save File
• Emacs: #auto-save# (hashtag filename)
• Emacs: Auto Backup~ (tilde postfix)

Line Editing

• Show Line Numbers
• Emacs: Hard-Wrap Lines (fill-region)
• Emacs: Visual Line Mode
• Arrow Key for Screen Line or Logical Line

Line Appearance

• Highlight Current Line
• Show Cursor Column Position
• Ruler Mode
• Emacs: Toggle Word Wrap
• Emacs: Line Wrap
• Line Height

Appearance

• Set Color Theme
• Highlight Brackets
• Emacs: text-quoting-style
• Whitespace Mode
• Display Lambda as λ

Misc

• Emacs: Bookmark Init
• Emacs: Misc Init Tips
• Emacs: Command Name Alias
• Stop Cursor Going into Minibuffer Prompt

Advanced Init Tips

• Emacs: Major Mode
• Emacs: Minor Mode
• Emacs: Show Variable Value and Doc
• M-x customize
• Organize Init File
• Emacs: Byte Compile Elisp Files
• Hook
• Environment Variables
• Get Version, Host Name, User Name, Init Dir

packages

• Install Package from ELPA, MELPA
• Install Package Manually

Emacs Keys ⌨. Table of Contents

Overview

• Overview
• Layout Diagram

How-To

• Define Key
• Keybinding Functions, Emacs 29 Change
• Syntax
• Change Major Mode Keys
• Change Minor Mode Keys
• Change Minibuffer Keys
• Minor Modes Key Priority
• Key Sequence
• Major-Mode Dependent Key
• Meta Key
• Super Hyper
• Menu Key
• Repeat Command by Key, Transient Map
• Set Key to Insert Unicode Emoji
• Remap Key, translation-keymaps
• emacs init: Mouse Button Syntax

Key Tips

• emacs init: Standard Copy Cut Paste Keys
• Add Custom Keys to Enhance Productivity
• emacs init: isearch by Arrow Keys
• Emacs: Bind Number Pad Keys
• Emacs: 1 Key for M-x

Emacs Pinky

• Best Keyboards for Emacs
• Why Emacs Keys are Painful
• How to Avoid Emacs Pinky
• Emacs: Command Frequency Statistics
• Emacs: Why You Should Not Swap CapsLock and Control
• Famous Programers with Repetitive Strain Injury
• Xah Lee, Typing Experience and Repetitive Strain Injury

Misc

• Emacs: One Thousand Default Keybinding

Elisp: Lisp Basics. Table of Contents

Quick Start

• Quick Start
• Filename Extension
• Comment
• Print, Output

Working with Elisp

• Emacs: Evaluate Elisp Code
• Emacs: Show Function Documentation
• Emacs: Search Function by Name
• Emacs: How to Edit Lisp Code

String

• String
• Unicode Escape Sequence
• String Functions
• Replace String or Regex in String
• Join Strings, Codepoints to String
• String Comparison, Equality, Order
• Format String
• Convert Number, String
• Character Type

Number

• Number
• Arithmetic
• Compare Numbers, Equality

Boolean

• Boolean (true false nil)

Variable

• Variable
• Destructure Binding (seq-setq, seq-let)
• Place Expression, Generalized Variable
• Buffer Local Variable
• emacs init: Environment Variables
• Emacs: Show Variable Value and Doc
• Emacs: Search Variable by Name

Conditionals

• If then else (Conditional)
• Equality Test
• Block of Expression (progn)

Loop

• Loop
• Exit Loop or Function (throw, catch)

Lisp Data Structure

List

• List
• Create List
• List, Get Elements
• Modify List
• List Iteration
• Check Element Exist in List
• Remove Elements in List
• Backquote Reader Macro for List

Special Lists

• Association List
• Property List
• Symbol Property List

List Structure

• Cons Cell
• Quote and Dot Notation
• Proper List

Vector

• Vector

Sequence

• Sequence Type
• Sequence Functions
• Sequence. Take, Drop, Slice
• Sequence. Iteration Guide
• Sequence. Map
• Sequence. Foreach
• Sequence. some, every (conditional exit)
• Sequence. Filter
• Sequence. Insert or Remove
• Sequence. Find
• Sequence. Sort, Reverse
• Sequence. Join, Convert
• Sequence. Union, Intersection, Difference
• Sequence. Partition, Group
• Sequence. Min, Max, Random

Hash Table

• Hash Table
• Generic Map Functions

JSON Read Write

• JSON Read Write

Function

• Define Function
• Define a Command
• Function Parameters (optional, rest)
• Function Keyword Parameters (Named Parameters)
• Docstring Markup
• Lambda Function
• Exit Loop or Function (throw, catch)
• Apply Function, funcall, identity
• Types of Functions

Symbol

• Symbol
• Quoting Symbol
• Keyword Symbol (Colon Prefix)
• Symbol Cells
• Special Form

Regular Expression

• Regular Expression
• Regex Functions
• Emacs: Regular Expression Syntax
• Regex Backslash in Lisp Code
• Case Sensitivity (case-fold-search)
• Find Replace Text in Buffer
• Match Data (Regex Result)
• Convert Regex to Lisp Regex String
• How to Test Regex
• Regex in Readable Syntax, Package Rx
• Regex Named Character Class and Syntax Table
• Emacs Regex vs Regex in Python, JavaScript, Java

Lisp Misc

• Print Date Time
• Parse Date Time

Practical Emacs Lisp. Table of Contents

• Overview of Coding Emacs Lisp

Writing Command

• Define a Command
• Simple Code Examples

Text Processing

• Cursor Position Functions
• Move Cursor
• Search Text Functions
• Text Editing Functions
• Mark, Region, Active Region
• Cut Copy Paste, kill-ring
• Get Buffer String
• Functions on Line
• Get Text at Cursor (thing-at-point)
• Get Text Block 📜
• Save narrow-to-region
• Find Replace Text in Buffer

Get User Input

• Interactive Form
• Get User Input
• Get universal-argument

File, Buffer

• Buffer Functions
• Read File
• Read File Content as String or Lines
• Open File, Read, Possibly Write
• Write File
• File and Directory Functions
• Get File Info
• File Path Functions
• Walk Directory, List Files
• Walk Directory by Depth 📜
• Get Dired Marked Files

Call Shell Command

• Call Shell Command
• Call Shell Command on Region
• Start External Process
• emacs init: Environment Variables
• exec-path, External Program Search Paths

Package

• load, load-file, autoload
• provide, require, features

Writing Script

• Run Elisp Script in Terminal
• Get Command Line Arguments
• Get Script Name at Run Time, Call by Relative Path

Benchmark and Testing

• Benchmark, Test Speed
• Unit Testing

Elisp: Create Major Mode. Table of Contents

Basics

• Write a Major Mode for Syntax Coloring
• Font Lock Mode
• Syntax Color Comments
• Write Comment/Uncomment Command
• Keyword Completion
• Create Keymap (keybinding)
• Create Function Templates
• Emacs: Command to Lookup Doc on Web 📜
• Create a Hook
• Text Properties
• Overlay Highlighting

Major Mode Naming

• Major Mode Names

Syntax Table

• Character Type
• Syntax Table
• Create Syntax Table
• Syntax Class
• Show Syntax Table
• Show Char's Syntax
• Syntax Descriptor
• Modify Syntax Table Temporarily
• Determine Cursor is Inside String or Comment
• Find Matching Bracket Character

Font Face

• Font Face
• Define Face
• Modify Default Face (Font)
• Font Lock Mode

Abbrev

• Abbrev Table
• Abbrev Properties
• Abbrev Trigger Character
• Abbrev Enable Function
• Abbrev Expand Function
• Abbrev Hook
• Example of Abbrev as Function Templates