private static int findNextNonWhiteSpaceChar(String source, int index) {
		while (index < source.length()) {
			if (!Character.isWhitespace(source.charAt(index))) {
				return index;
			}
			index++;
		}
		return -1;
	}
Parses the given source string into a list of strings, one for each group. The startChar
and endChar defined the group characters. So, for example, "(ab (cd))(ef)((gh))" would 
result in a list with the following values: "ab (cd)", "ef", and "(gh)"
@param source the source string to parse into groups
@param startChar the character that defines the start of a group
@param endChar the character that defines then end of a group
@return a List of strings, one for each consecutive group contained in the string
@throws ParseException if the groupings are not balanced or missing altogether
Ghidra/Framework/Gui/src/main/java/generic/theme/ThemeValueUtils.java