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Solution: Regular Expressions

Explore how to implement regular expression matching in C# by prompting user input and validating it against custom or default patterns. Learn to use the Regex class, handle input in loops, and control program flow with keypresses for practical .NET development skills.

Problem statement

Write code which first prompt the user to enter a regular expression, then prompt the user to enter some input for the regular expression, and compare the two for a match until the user presses the 'Esc' button.

Step-by-step solution

The step-by-step solution is as follows:

C#
using System.Text.RegularExpressions;

Add a namespace that provides a set of classes for working with regular expressions.

C#
using System.Text.RegularExpressions;
WriteLine("The default regular expression checks for at least one digit.");
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