This chapter describes the basic rules of Cows scripting language.
Cows is Case Sensitive; in other words, lowercase and uppercase characters change the meaning of words and lexical structures. Consequences of this are:
you have to be careful when using Cows' keywords: ifdef is right while IfDef and IFDEF are unknown tokens.
you have to be careful when defining your own variables: if you define some_var=5, remember that SOME_var,
SOME_VAR etc. are different variables.
This manual can be downloaded from http://www.g-cows.org/.