Cows allows to insert comments within your scripts in order to make them more readable and easy to maintain. These comments - unlike HTML ones - will never reach users' browsers. So, you may also find valuable to define a Cows script consisting of nothing but comments in order to replace HTML ones.
// comment
Everything following the double slashes until the first End Of Line will be discarded from output.
// The time will come when men such as I will look upon the // murder of animals as they now look on the murder of men. // -- Leonardo da Vinci
/*Comment - first line
Comment - second line
... */
Everything between /* and */ will be discarded from output. Please note that block comments don't nest but you can still place a line comment inside a block one.
/* ****************************************** * Human beings are the only animals of which I am thoroughly and cravenly afraid. -- George Bernard Shaw * ****************************************** */
This manual can be downloaded from http://www.g-cows.org/.