package org.basex.query.expr;
import static org.basex.query.QueryText.*;
import org.basex.query.QueryContext;
import org.basex.query.QueryException;
import org.basex.query.item.FComm;
import org.basex.query.item.Item;
import org.basex.query.iter.Iter;
import org.basex.util.InputInfo;
import org.basex.util.TokenBuilder;
/**
* Comment fragment.
*
* @author BaseX Team 2005-12, BSD License
* @author Christian Gruen
*/
public final class CComm extends CFrag {
/**
* Constructor.
* @param ii input info
* @param c comment
*/
public CComm(final InputInfo ii, final Expr c) {
super(ii, c);
}
@Override
public FComm item(final QueryContext ctx, final InputInfo ii)
throws QueryException {
final Iter iter = ctx.iter(expr[0]);
final TokenBuilder tb = new TokenBuilder();
boolean more = false;
for(Item it; (it = iter.next()) != null;) {
if(more) tb.add(' ');
tb.add(it.string(ii));
more = true;
}
return new FComm(FComm.parse(tb.finish(), input));
}
@Override
public String description() {
return info(COMMENT);
}
@Override
public String toString() {
return toString(COMMENT);
}
}