Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

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

public class Main {
    public static String getConditionOfExpression(String expression) {
        // pattern for conditions
        Pattern conditionPattern = Pattern
                .compile("^([\\w\\W&&[^/\\[\\]]]+)?(\\[[\\w\\W&&[^\\[\\]]]+\\])(/[\\w\\W]+)?$");
        Matcher conditionMatcher = conditionPattern.matcher(expression);
        if (conditionMatcher.find() && (conditionMatcher.group().length() == expression.length())) {
            StringTokenizer st = new StringTokenizer(expression, "]");
            String condition = st.nextToken();
            condition = condition.substring(condition.indexOf("[") + 1);
            return condition;
        }
        return null;
    }
}