/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012 gnosygnu@gmail.com

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.xowa.xtns.pfuncs.ifs; import gplx.*; import gplx.xowa.*; import gplx.xowa.xtns.*; import gplx.xowa.xtns.pfuncs.*;
public class Pfunc_ifeq extends Pf_func_base {
	@Override public boolean Func_require_colon_arg() {return true;}
	@Override public void Func_evaluate(Xop_ctx ctx, byte[] src, Xot_invk caller, Xot_invk self, Bry_bfr bfr) {
		int self_args_len = self.Args_len(); if (self_args_len < 2) return; // no equal/not_equal clauses defined; return; EX: {{#if:a}} {{#if:a|b}}
		byte[] lhs = Eval_argx(ctx, src, caller, self);
		byte[] rhs = Pf_func_.Eval_arg_or_empty(ctx, src, caller, self, self_args_len, 0);
		if (Pf_func_.Eq_(lhs, rhs))
			bfr.Add(Pf_func_.Eval_arg_or_empty(ctx, src, caller, self, self_args_len, 1));
		else
			bfr.Add(Pf_func_.Eval_arg_or_empty(ctx, src, caller, self, self_args_len, 2));
	}
	@Override public int Id() {return Xol_kwd_grp_.Id_xtn_ifeq;}
	@Override public Pf_func New(int id, byte[] name) {return new Pfunc_ifeq().Name_(name);}
}	
