I want to know do we have any data items or literals which defines all the valid character for COBOL. For e.g. NUMERIC means any numerals and ALPHABETIC means all alphabetic characters and some special characters. Similary do we have something that defines all the valid characters accepted by COBOL?
Data-Item is NUMERIC
User-defined class name
In Input-data IS ALPHABETIC-LOWER
MOVE FUNCTION UPPER(Input-data) to Input-data
The UserDefinedClassName is name that a programmer can assign to a set of characters. The programmer must use the CLASS clause of the SPECIAL-NAMES paragraph, of the CONFIGURATION SECTION, in the ENVIRONMENT DIVISION, to assign a class name to a set of characters.