Java String Split split(String self)

Description

split

License

Open Source License

Declaration

public static List split(String self) 

Method Source Code

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

import java.util.ArrayList;

import java.util.List;

public class Main {
    public static List split(String self) {
        return split(self, null, true);
    }/*from www.  j a  va  2  s . co m*/

    public static List split(String self, Long separator) {
        return split(self, separator, true);
    }

    public static List split(String self, Long separator, boolean trimmed) {
        if (separator == null)
            return splitws(self);
        int sep = separator.intValue();
        boolean trim = trimmed;
        List toks = new ArrayList<String>(16);
        int len = self.length();
        int x = 0;
        for (int i = 0; i < len; ++i) {
            if (self.charAt(i) != sep)
                continue;
            if (x <= i)
                toks.add(splitStr(self, x, i, trim));
            x = i + 1;
        }
        if (x <= len)
            toks.add(splitStr(self, x, len, trim));
        return toks;
    }

    public static List splitws(String val) {
        List toks = new ArrayList<String>(16);
        int len = val.length();
        while (len > 0 && val.charAt(len - 1) <= ' ')
            --len;
        int x = 0;
        while (x < len && val.charAt(x) <= ' ')
            ++x;
        for (int i = x; i < len; ++i) {
            if (val.charAt(i) > ' ')
                continue;
            toks.add(val.substring(x, i));
            x = i + 1;
            while (x < len && val.charAt(x) <= ' ')
                ++x;
            i = x;
        }
        if (x <= len)
            toks.add(val.substring(x, len));
        if (toks.size() == 0)
            toks.add("");
        return toks;
    }

    private static String splitStr(String val, int s, int e, boolean trim) {
        if (trim) {
            while (s < e && val.charAt(s) <= ' ')
                ++s;
            while (e > s && val.charAt(e - 1) <= ' ')
                --e;
        }
        return val.substring(s, e);
    }
}

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2. split(String s, String seperator)
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