goja-core/src/main/java/goja/core/kits/lang/CharKit.java
protected static boolean isSubDelimiter(int c) {
        return c == '!' || c == '$' || c == '&' || c == '\'' || c == '(' || c == ')' || c == '*' || c == '+' ||
                c == ',' || c == ';' || c == '=';
    }
protected static boolean isSubDelimiter(int c) {
        return c == '!' || c == '$' || c == '&' || c == '\'' || c == '(' || c == ')' || c == '*' || c == '+' ||
                c == ',' || c == ';' || c == '=';
    }
Indicates whether the given character is in the <i>sub-delims</i> set.

@see <a href="http://www.ietf.org/rfc/rfc3986.txt">RFC 3986, appendix A</a>