[soegaard]

Just in case: use an editor with support for Scheme.

If you want something easy to install, try DrRacket.

- tab indents the current line

- cmd-I (or ctrl-I) will indent the entire buffer

- Press ] to insert a matching closer (an parenthesis, bracket or brace)

When you need it, install the `sicp` package to get the Henderson picture language (and more) used in the book.