import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "((['\\\"])(?:\\\\\\2|(?!\\2)[\\w\\W])*\\2|\\/\\*[\\w\\W]*?\\*\\/)|\\h*\\/\\/.*";
final String string = "\"Testing a comment here // comment\" // comment\n\n"
+ "// comment\n\n"
+ "\"A bit \\\" trickier yet \\\" // comment\" // comment\n\n"
+ "// comment\n\n"
+ "// \"This should match since the comment came first\"\n\n"
+ "'Single \\' quotes // comment' // comment\n\n"
+ "'''\n"
+ "Ignore\n"
+ "// comment\n"
+ "\\''''\n\n"
+ "// comment\n\n"
+ "/*\n"
+ "multiline\n"
+ "// comment\n"
+ "*/";
final String subst = "\\1";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(string);
// The substituted value will be contained in the result variable
final String result = matcher.replaceAll(subst);
System.out.println("Substitution result: " + result);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html