Is there any way to split a Java String using a regular expression and return an array of backreferences?
As a simple example, say I wanted to pull the username & provider from a simple email address (letters only).
String pattern = "([a-z]+)@([a-z]+)\\.([a-z]{3})";
String email = "[email protected]";
String[] backrefs = backrefs(email,pattern);
System.out.println(backrefs[0]);
System.out.println(backrefs[1]);
System.out.println(backrefs[2]);
This should output
user
email
com
Yes, using the Pattern and Matcher classes from java.util.regex pacakge.
String pattern = "([a-z]+)@([a-z]+)\\.([a-z]{3})";
String email = "[email protected]";
Matcher matcher = Pattern.compile(pattern).matcher(email);
// Check if there is a match, and then print the groups.
if (matcher.matches())
{
// group(0) contains the entire string that matched the pattern.
for (int i = 1; i <= matcher.groupCount(); i++)
{
System.out.println(matcher.group(i));
}
}
