public static boolean isSpace(int c) {
        return c < 0x10000 && (CHARS[c] & MASK_SPACE) != 0;
    }
Returns true if the specified character is a space character
as defined by production [3] in the XML 1.0 specification.

@param c The character to check.
stroom-util/src/main/java/stroom/util/xml/XMLChar.java