- // Instance //////////////////////////////////////////////////////////////////////////////
-
- final boolean zeroOkay, manyOkay;
- final Element e;
- final Element separator;
- final boolean maximal;
-
- Repeat(final Element e, boolean zeroOkay, boolean manyOkay) { this(e, zeroOkay, manyOkay, null); }
- Repeat(final Element e, boolean zeroOkay, boolean manyOkay, Element separator) { this(e, zeroOkay, manyOkay, separator, false); }
- Repeat(final Element e, boolean zeroOkay, boolean manyOkay, final Element separator, boolean maximal) {
- super(e+(!manyOkay ? "?" : (zeroOkay ? "*" : "+"))+(separator==null?"":("/"+separator.toString())), true);
- this.e = e;
- this.maximal = maximal;
- this.zeroOkay = zeroOkay;
- this.manyOkay = manyOkay;
- this.separator = separator;
+ private Repeat(final Element e, boolean zeroOkay, boolean manyOkay) { this(e, zeroOkay, manyOkay, null); }
+ private Repeat(final Element e, boolean zeroOkay, boolean manyOkay, Element separator) { this(e, zeroOkay, manyOkay, separator, false); }
+ private Repeat(final Element e, boolean zeroOkay, boolean manyOkay, final Element separator, boolean maximal) {
+ super(e+(!manyOkay ? "?" : (zeroOkay ? (maximal ? "**" : "*") : (maximal ? "++" : "+")))+(separator==null?"":("/"+separator)), true);
+ if (maximal && zeroOkay && separator != null)
+ throw new RuntimeException("cannot create a maximal repetition of zero or more items with a separator (yet): " + this);