Control language elements

This covers elements of CL such as character sets and values, expressions, built-in functions, and naming within commands.

• CL character sets and values
  This topic explains the usage of the EBCDIC character sets, special characters, and IBM^® -defined fixed values called predefined values.
• Expressions in CL commands
  A character string expression can be used for any parameter, element, or qualifier defined with EXPR(*YES) in the command definition object.
• Built-in functions for CL
  CL provides several built-in functions.
• Naming within commands
  You can use only specific characters for naming within commands.