Notes on XEmacs

What is XEmacs?

A text editor, Integrated Development Environment, and shell.

XEmacs Web site

XEmacs: The next generation of Emacs

Determiners of Look and Feel

• ~/.Xdefaults
• command line

• ~/.xemacs
        init.el
        custom.el
  

Running XEmacs

xemacs [file] [&]
Note: XEmacs is implemented in Lisp; Every command is a Lisp function.

Abort Command if Hung

C-g

Exiting XEmacs

C-x C-c

Screen Organization

1. Frame: Everything in the X window
2. Menu Bar
3. Tool Bar
4. Window
   May be several, one of which is selected.
   Each contains a buffer with a point between two characters.
   The selected window contains the cursor on the character after point.
   Last line is the mode line.
5. Minibuffer

Getting Help

• Menus
• Help menu
• C-h

Major Modes

Determined by file extension.
M-x mode-mode To change mode.
Note Space completion

• Fundamental
• Text
• Lisp Interaction (Emacs Lisp)
• Dired
• LaTeX
• HTML
• Java
• C
• Common Lisp
• Inferior Common Lisp
• Mail
• Prolog
• Python
• Shell
• etc..........

Dired: Operating on Directories

C-x d (Note default argument -- RET to accept)

• f To edit file under cursor
  
• g Refresh information
  
• Other commands ...

Getting a File into a Buffer

C-x C-f Note: the file is created if it doesn't already exist.

Saving a File

C-x C-s

Manipulating Buffers

C-x b Get a different buffer in the window
C-x C-b List all buffers
C-x k Kill buffer

Moving the Cursor

Mouse-Left
C-f Forward one character
C-b Backward one character
M-f Forward one word
M-b Backward one word
C-n Next line
C-p Previous line
C-a Beginning of line
C-e End of line
C-v Down one window-full
M-v Up one window-full
M-< Beginning of buffer
M-> End of buffer
C-l Center this line within this window

Editing Text

Type To enter before cursor
DEL or BS To delete before cursor
C-d To delete under cursor
C-k To kill rest of line
C-y To paste ("yank") last killed object
C-o To "open" a new line Note: NEWLINE is just another character.
C-x u To undo
M-x revert-buffer restores the version on disk.

Searching

C-s Incremental search forward
C-r Incremental search backward
M-% Query-Replace M-C-s Incremental Regex search forward
M-C-r Incremental Regex search backward
M-C-% Regex Query-Replace

Regions

C-spc Set mark (Region from mark to cursor)
C-w Kill region
M-w Copy region to kill ring
M-x kill-rectangle
M-x yank-rectangle

Windows

C-x 2 Split window in two
C-x 0 Delete this window
C-x 1 Make this the only window
C-x o Other window