Implement, in a programming language of your choice, data structures and operations (empty, bind, lookup, enter and exit) for simple symbol tables.  In some programming languages, identifiers are...

Implement, in a programming language of your choice, data structures

and operations (empty, bind, lookup, enter and exit) for simple symbol tables.

 In some programming languages, identifiers are case-insensitive so,

e.g., size and SiZe refer to the same identifier. Describe how symbol tables can

be made case-insensitive.