Jim Brooks
emacs reference card 


C-X   means to hold down Control key then press key X
M-X   means to hold down Meta key (usually Alt) then press key X
ESC X means to press and release ESC key first, then key X


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keys
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M-k
    Kill (delete) paragraph.

C-y [M-y...]
    Yank from item in kill ring.  Then M-y cycles thru previous items in kill ring.

C-x n n
    Narrow view to region.

C-x n w
    Exit narrow view.


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searching, replacing
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C-s C-w [C-w...]
    Search for the word that the cursor is on.
    Press C-w repeatedly to pick up parts of a word separated by underscore.
    Then press C-s to start the search.

C-s RETURN C-w
    Do a word seach (ignores line breaks, spaces, and punctuation).

ESC C-s  or  M-C-s
    Regular expression (regex) search forward.

To search or replace in multiple files:

    Using dired, mark all files by:
    | m (XEmacs)
    * s (emacs)
    (Press 'u' over any CVS/RCS subdir to exclude it)

    A    global search        thru marked files
    M-,  continue global search
    Q    global query/replace thru marked files

    Replacement is done by regex and is tricky.
    Eg to change "st.", write "st[\.]".


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bookmarks
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http://www.xemacs.org/Documentation/21.5/html/xemacs_13.html

C-x r m RET
    Save bookmark for the visited file.

C-x r m (name) RET
    Save bookmark by name.

C-x r b (name) RET
    Jump to bookmark (if you remember its name).

C-x r l
    List bookmarks.
    To see help in this context: C-h m

    Keys:
    'v' jump to bookmark where cursor is on (view bookmark)

M-x bookmark-save
    Save bookmarks to file (~/emacs.bmk).


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tags
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Create a "TAGS" file:
    ctags -e --extra=+q `find . -name "*.cc" -or -name "*.h"`
    ctags -e -R --extra=+q (Exuberant will recurse into subdirs tagging anything)
    ESC ! etags *.cc *.h  (from emacs)

ESC x visit-tags-table
     To inform emacs after you've updated the "TAGS" file.
M-.
    Jump to a tag.
    emacs is smart enough to automatically pre-select the tag that
    the cursor is over.  Otherwise, emacs will prompt for a tag.
M-*
    To previous tag.
M-,
    To cycle thru tags having the same name.

M-x find-tag-other-window
    Split screen and open tag in second window.

http://www.cs.rochester.edu/u/brown/172/tools/etags.html
C-u M-. NAME
    Finds the next definition matching NAME.
C-u - M-.
    Goes back to the previous tag found.
C-u C-M-.    (C-M-. means to press Ctrl + Alt + '.')
    Finds the next tag whose name matches the last pattern used.
C-x 4 .
    NAME finds the first def matching NAME and displays it in another buffer.
M-x tags-search
    Lets you look through the files in the tags table for everything matching a regular expression.
M-x tags-query-replace
    Lets you do a query-replace on a regular expression.
M-,
    Lets you restart one of the commands above ('tags-loop-continue'). 


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macros
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To create a new macro:

    C-x (
        Begin macro.
    C-x )
        End macro.
    C-x e
        Call the last keyboard macro that you defined with C-x (
    C-u
        Repeat 4 times.

Then to save the macro:

    1. Create the macro using "C-x (" and "C-x )".
    2. Name the macro using "ESC x name-last-kbd-macro".
    3. Open the file that holds emacs macros.
    4. Insert the macro definition using "ESC x insert-kbd-macro".


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register
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C-x r SPC r 
    Save the location of point in register r (point-to-register). 
C-x r j r 
    Jump to the location saved in register r (register-to-point). 
C-x r s r 
    Copy region into register r (copy-to-register). 
C-x r g r 
    Insert text contents of register r (insert-register). 


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rectangular editing
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C-x r k
    kill-rectangle
C-x r y
    yank-rectangle
C-x r r
    copy-rectangle-to-register


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elisp functions
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list-colors-display   ;; shows colors as blocks


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misc
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To change fonts (try maximizing/restoring window if font isn't redrawn):
    set-default-font 6x12
    emacs -font 6x12