code: public static String leftTrim(final String aString) {
  		if (aString == null) {
  			return null;
  		}
  		int start = 0;
  		while ((start < aString.length()) && (aString.charAt(start) <= ' ')) {
  			start++;
  		}
  		if (start == 0) {
  			return aString;
  		}
  		return aString.substring(start);
  	}
docs: Copies this String removing white space characters from the beginning of the string.
  
  @param aString the String to trim.
  @return a new String with characters <code>\\u0020</code> removed from the beginning