void Parser()
{
SimpleParser parser = new SimpleParser();
String script = null;
ASTNode tree = null;
try
{
script = "2;int age =3*(45+2); age= 20*2+2; age+10*2;";
Console.WriteLine("解析：" + script);
tree = parser.parse(script);
parser.DumpAST(tree, "");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
//测试异常语法
try
{
script = "2+3+;";
Console.WriteLine("解析：" + script);
tree = parser.parse(script);
parser.DumpAST(tree, "");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
//测试异常语法
try
{
script = "2+3*;";
Console.WriteLine("解析：" + script);
tree = parser.parse(script);
parser.DumpAST(tree, "");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}