Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

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

public class Main {
    private static final Pattern pagePattern = Pattern.compile("(.*(?:\\?|&)page=)(\\d*)(.*)");

    public static String getQueryPageUrl(String url, int inc) {
        if (url == null) {
            return null;
        }
        if (!url.contains("nicovideo.jp/search/")) {
            return null;
        }
        String ret = null;
        Matcher matcher = pagePattern.matcher(url);
        if (matcher.find()) {
            String _u1 = matcher.group(1);
            String _p = matcher.group(2);
            String _u2 = matcher.group(3);
            int page = 1;
            try {
                page = Integer.parseInt(_p) + inc;
            } catch (NumberFormatException e) {
            }
            if (0 < page) {
                ret = _u1 + page + _u2;
            }
        } else {
            int page = 1 + inc;
            if (0 < page) {
                if (url.contains("?")) {
                    ret = url + "&page=" + page;
                } else {
                    ret = url + "?page=" + page;
                }
            }
        }
        return ret;
    }
}