Source code beautification

[logological]

The source code should be reformatted and some stylistic issues corrected:

• needs pretty-printing (more whitespace between arguments)
• needs function prototypes
• needs comments dividing code into sections
• static keyword seems to be used indiscriminately

Note that reformatting the code may make it harder to fix Issue #1.

(This issue was migrated from the BUGS file of 2004-07-11.)

[Artoria2e5]

The fix for #26 seems to have broken some formatting. Might be a good idea to save up the command.