Czlovek.Strings 1.0.10

String Regex Extensions

This code contains extension methods that allow you to easily work with regular expressions on strings.

IsMatch()

This method determines whether the specified regular expression matches the entire input string.

Parameters

• self (string): The input string to be tested.
• pattern (string): The regular expression pattern to match against.
• options (RegexOptions): A bitwise combination of the enumeration values that modify the regular expression.

Return Value

This method returns a boolean value indicating whether the regular expression found a match.

Match()

This method searches the specified input string for the first occurrence of the specified regular expression.

Parameters

• self (string): The input string to be searched.
• pattern (string): The regular expression pattern to match against.
• options (RegexOptions): A bitwise combination of the enumeration values that modify the regular expression.

Return Value

This method returns a Match object that contains information about the match.

Replace()

This method replaces all strings that match a specified regular expression with a specified replacement string.

Parameters

• self (string): The input string to be searched.
• pattern (string): The regular expression pattern to match against.
• replacement (string): The replacement string to use.
• options (RegexOptions): A bitwise combination of the enumeration values that modify the regular expression.

Return Value

This method returns a new string that is identical to the input string, except that the replacement string takes the place of each matched string.

Usage

To use these extension methods, first ensure that your code includes a reference to the System.Text.RegularExpressions namespace. Then, call the methods as shown below:

using System.Text.RegularExpressions;

string myString = "The quick brown fox jumps over the lazy dog.";

// Using IsMatch()
bool isMatch = myString.IsMatch("brown");

// Using Match()
Match match = myString.Match("q.*k");

// Using Replace()
string replacedString = myString.Replace("fox", "cat");

In the examples above, IsMatch() returns true because the string "brown" is present in the input string, Match() returns a Match object containing information about the match "quick", and Replace() returns a new string with "fox" replaced with "cat".