import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?:(?<=^)|(?<=,)) # start of line or comma\n"
+ "(?:(?!$)\\s)* # skip whitespace\n"
+ "\"? # skip opening quote mark\n"
+ "(\n"
+ " (?<=\").*?(?=\") # capture value in quotes\n"
+ " | # or\n"
+ " ((?!,)\\S)* # capture just value\n"
+ ")\n"
+ "\"? # skip closing quote mark\n"
+ "(?:(?!$)\\s)* # skip whitespace\n"
+ "(?=$|,) # command or the end of the line";
final String string = "";
final String subst = "{\\1}";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE | Pattern.COMMENTS);
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