Text editor issues

• Use whatever you're comfortable with.
• Searching, esp. case insensitive
• Matching parentheses:
• vi: built in, use %
• emacs: use this (from "Emacs for vi programmers"):

  (defun match-paren (arg)
    "Go to the matching paren if on a paren; otherwise insert %."
    (interactive "p")
    (cond ((looking-at "\\s\(") (forward-list 1) (backward-char 1))
          ((looking-at "\\s\)") (forward-char 1) (backward-list 1))
          (t (self-insert-command (or arg 1)))))

• Syntax highlighting and indentation: useful but not required.