Code Generation

Hi everyone,
I'm looking for some existing solution to automate class code generation.
As an example, suppose I provide an XML:

HTML Code:

---

<Class name="X">
<Field name="x" type="string" />
</Class>

---

then I should produce a class like

Code:

---

class X {
string _x;
string get_x() { return _x; };
void set_x(string x)  { _x = x; };
}

---

It should be something like Eclipse code generation tools that automatically generate getters / setters for a given field.
Nevertheless, it should be something I can use via command line, in order to have scripts that can generate code / compile it / execute it.

Two more comments:
I'm aware of solutions like XSD to C++ compilers, the problem I see is that I don't need the created class to read or write XML objects.
I know I can write my own class to generate C++ code, but I guess something exists, and maybe it has good functionalities like including stuff, namespaces, and generation of function from given patterns, not only getters and setters.

Can you help me?
Thanks