Notation

The convention in this manual is to show triangular brackets enclosing a name to indicate that a quantity described by the name must be supplied, e.g. <sortword>.

Optional quantities are enclosed in double square brackets, e.g. 〚 optvar 〛.

The letter "r"' following a quantity indicates that the item may be repeated.

Alternative quantities are denoted by |, so <a>|<b> indicates either <a> or <b>.

In the commands section wherever <statements> is used it refers to either a simple statement (single command) or a complex statement (group of commands enclosed within curly braces), i.e.


<statements>   ->  <single-command>
                   | 
                   {
                    <single-command>
                    <single-command>
                    ...
                   }