Chapter 6.4, Problem 5QE

Explanation of Solution

String:

The string is defined as the data type used in the programming. The lexical analyzer recognizes the string of symbols from the source program. There is a main role of strings in the parser of the translation process. The manner in which a particular string conforms to a set of syntax diagrams can be represented in a pictorial form by a parse tree. The process of parsing a program is essentially that of constricting a parse tree for the source program. The parse tree represents the parser’s interpretation of the program’s grammatical composition.

The above figure indicates the string that conforms to the structure Chacha according to the given syntax...