Java String Split by Length splitParams(String string, int max)

Description

split Params

License

Open Source License

Declaration

public static String[] splitParams(String string, int max) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;

public class Main {
    public static String[] splitParams(String string, int max) {
        String[] words = string.trim().split(" ");
        if (words.length <= 1) {
            return words;
        }/*from w  w  w.  j  a  v  a2  s  .  c o m*/
        ArrayList<String> list = new ArrayList<String>();
        char quote = ' ';
        String building = "";

        for (String word : words) {
            if (word.length() == 0)
                continue;
            if (max > 0 && list.size() == max - 1) {
                if (!building.isEmpty())
                    building += " ";
                building += word;
            } else if (quote == ' ') {
                if (word.length() == 1 || (word.charAt(0) != '"' && word.charAt(0) != '\'')) {
                    list.add(word);
                } else {
                    quote = word.charAt(0);
                    if (quote == word.charAt(word.length() - 1)) {
                        quote = ' ';
                        list.add(word.substring(1, word.length() - 1));
                    } else {
                        building = word.substring(1);
                    }
                }
            } else {
                if (word.charAt(word.length() - 1) == quote) {
                    list.add(building + " " + word.substring(0, word.length() - 1));
                    building = "";
                    quote = ' ';
                } else {
                    building += " " + word;
                }
            }
        }
        if (!building.isEmpty()) {
            list.add(building);
        }
        return list.toArray(new String[list.size()]);
    }

    public static String[] splitParams(String string) {
        return splitParams(string, 0);
    }

    public static String[] splitParams(String[] split, int max) {
        return splitParams(arrayJoin(split, ' '), max);
    }

    public static String[] splitParams(String[] split) {
        return splitParams(arrayJoin(split, ' '), 0);
    }

    public static String arrayJoin(String[] array, char with) {
        if (array == null || array.length == 0) {
            return "";
        }
        int len = array.length;
        StringBuilder sb = new StringBuilder(16 + len * 8);
        sb.append(array[0]);
        for (int i = 1; i < len; i++) {
            sb.append(with);
            sb.append(array[i]);
        }
        return sb.toString();
    }
}

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