Control language (CL) contains elements such
as character sets and values, expressions, built-in functions, and naming
within commands.
CL character sets and values
The EBCDIC character sets, special characters,
and IBM-defined fixed values called predefined values can be
used in CL.
Expressions in CL commands
A character string expression can be used for
any parameter, element, or qualifier that is defined with EXPR(*YES) in the
command definition object.
Built-in functions for CL
Control language (CL) provides several built-in
functions. Built-in functions are used in arithmetic, relational, or logical
expressions.
Naming within commands
The type of name you specify in control language
(CL) determines the characters you can use to specify a name.