Source Code : Matching Line Boundaries in a Regular Expression

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Matching Line Boundaries in a Regular Expression

        

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
  public static void main(String[] argv) throws Exception {

    CharSequence inputStr = "abc
def";
    String patternStr = "abc$";

    // Compile with multiline enabled
    Pattern pattern = Pattern.compile(patternStr, Pattern.MULTILINE);
    Matcher matcher = pattern.matcher(inputStr);
    boolean matchFound = matcher.find(); // true

    // Use an inline modifier to enable multiline mode
    matchFound = pattern.matches(".*abc$.*", "abc
def"); // false
    matchFound = pattern.matches("(?m).*abc$.*", "abc
def"); // true
  }
}

   
    
    
    
    
    
    
    
  

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