String line = "a=b c='123 456' d=777 e='uij yyy'";
	
String [] words = line.split(" ");
	
a=b
c='123 456'
d=777
e='uij yyy';
	
a=b abc='123 456' &=777 #='uij yyy' ABC='slk slk'              123sdkljhSDFjflsakd@*#&=456sldSLKD)#(
	
a=b
abc='123 456'
&=777
#='uij yyy'
ABC='slk slk'             
123sdkljhSDFjflsakd@*#&=456sldSLKD)#(
	
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class RegexTest {

    // SPACE CHARACTER                 							followed by
    // sequence of non-space characters of 1 or more 			followed by
    // first occuring EQUALS CHARACTER		 
    final static String regex = " [^ ]+?=";


    // static pattern defined outside so that you don't have to compile it 
    // for each method call
    static final Pattern p = Pattern.compile(regex);

    public static List<String> tokenize(String input, Pattern p){
    	input = input.trim(); // this is important for "last token case"
    							// see end of method
    	Matcher m = p.matcher(input);
    	ArrayList<String> tokens = new ArrayList<String>();
    	int beginIndex=0;
    	while(m.find()){
    		int endIndex = m.start();
    		tokens.add(input.substring(beginIndex, endIndex));
    		beginIndex = endIndex+1;
    	}

    	// LAST TOKEN CASE
    	//add last token
    	tokens.add(input.substring(beginIndex));

    	return tokens;
    }

    private static void println(List<String> tokens) {
    	for(String token:tokens){
    		System.out.println(token);
    	}
    }


    public static void main(String args[]){
    	String test = "a=b " +
    			"abc='123 456' " +
    			"&=777 " +
    			"#='uij yyy' " +
    			"ABC='slk slk'              " +
    			"123sdkljhSDFjflsakd@*#&=456sldSLKD)#(";
    	List<String> tokens = RegexTest.tokenize(test, p);
    	println(tokens);
    }
}
	
line.split(" (?=[a-z+]=)")
	
a=b
c='123 456'
d=777
e='uij yyy'
	
String s = "Ta=b c='123 456' d=777 e='uij yyy'";
StreamTokenizer st = new StreamTokenizer(new StringReader(s));
st.ordinaryChars('0', '9');
st.wordChars('0', '9');
while (st.nextToken() != StreamTokenizer.TT_EOF) {
    switch (st.ttype) {
    case StreamTokenizer.TT_NUMBER:
        System.out.println(st.nval);
        break;
    case StreamTokenizer.TT_WORD:
        System.out.println(st.sval);
        break;
    case '=':
        System.out.println("=");
        break;
    default:
        System.out.println(st.sval);
    }
}
	
Ta
=
b
c
=
123 456
d
=
777
e
=
uij yyy
	
String line = "a=b c='123 456' d=777 e='uij yyy'";
Matcher m = Pattern.compile("('[^']*?'|\S)+").matcher(line);
while (m.find()) {
  System.out.println(m.group()); // or whatever you want to do
}
	
public static void main(String[] args) {
String token;
String value="";
HashMap<String, String> attributes = new HashMap<String, String>();
String line = "a=b c='123  456' d=777 e='uij yyy'";
StringTokenizer tokenizer = new StringTokenizer(line," ");
while(tokenizer.hasMoreTokens()){
        token = tokenizer.nextToken();
    value = token.contains("'") ? value + " " + token : token ;
    if(!value.contains("'") || value.endsWith("'")) {
           //Split the strings and get variables into hashmap 
           attributes.put(value.split("=")[0].trim(),value.split("=")[1]);
           value ="";
    }
}
    System.out.println(attributes);
}
	
java.util.StringTokenizer tokenizer = new java.util.StringTokenizer(line, " ");
while (tokenizer.hasMoreTokens()) {
    String token = tokenizer.nextToken();
    int index = token.indexOf('=');
    String key = token.substring(0, index);
    String value = token.substring(index + 1);
}