4.11 Expressions

Expressions are FunnelWeb's most powerful form of expressing a text string. Macro bodies are defined as expressions. Actual parameters consist of expressions.

An expression consists of a sequence of zero or more expression elements. An expression element can be ordinary text, a macro call, or a formal parameter of the macro definition  in which the formal parameter occurs.

expression = { ordinary_text | macro_call |
               formal_parameter }