return inner.get(0);
if(inner.size()<1||inner.size()>2)
throw new InternalError("\"+\" requires at least one and at most two arguments");
if(inner.get(0).isConstant()&&inner.get(1).isConstant()){
if(inner.get(0).getType()==SCParser.STRING){
return new SCString(inner.get(0).getText()+inner.get(1).getText());
}
if(inner.get(0).getType()==SCParser.NUMBER&&inner.get(1).getType()==SCParser.NUMBER){
try{
ParserVal ret=new Number(inner.get(0).asDouble()+inner.get(1).asDouble());
ret.setFilename(filename);