@Override
	public CMIntegerGrouper parseText(String txt)
	{
		xs=new int[0];
		ys=new long[0];
		txt=txt.trim();
		if(txt.length()==0) return null;
		if((!txt.startsWith("{"))&&(!txt.endsWith("}")))
			return null;
		final int x=txt.indexOf("},{");
		if(x<0) return null;
		final String Xstr=txt.substring(1,x);
		final String Ystr=txt.substring(x+3,txt.length()-1);
		final List<String> XV=CMParms.parseCommas(Xstr,true);
		final List<String> YV=CMParms.parseCommas(Ystr,true);
		xs=new int[XV.size()];
		for(int v=0;v<XV.size();v++)
			xs[v]=CMath.s_int(XV.get(v));
		ys=new long[YV.size()];
		for(int v=0;v<YV.size();v++)
			ys[v]=CMath.s_long(YV.get(v));
		return this;
	}