Loading Course...
The most common question from this topic is construct regular expression for an identifier in C or C++ language
Application based question can be asked on this topic
Write regular definitions for identifiers in C language. The C identifiers are usually strings of letters, digits, and underscores.
Write a regular expression for a language containing strings that end with "abb" over Σ={a,b}.
Write regular expressions to describe a language consist of strings made of even numbers a and b
Write regular definitions for identifiers in C language. Assume a valid identifier must follow the given below set of rules. An identifier can include letters (a-z or A-Z), and digits (0-9). An identifier cannot include special characters except the '_' underscore. Spaces are not allowed while naming an identifier. An identifier can only begin with an underscore or letters.