#include"Python.h"

FILE *f=NULL;

int _openf(const char* name)
{
    f=fopen(name,"rb");
    if(f==NULL) return -1;
    else return 0;
}

long long _fgetd()
{
    long long d;
    return fscanf(f,"%lld",&d),d;
}

char* _fgetstr()
{
    static char* s="",c;
    while((c=fgetc(f))!='\n') s=strcat(s,&c);
    return s;
}

static PyObject *openf(PyObject* self,PyObject* args)
{
    char* s;
    if(!(PyArg_ParseTuple(args,"s",s))) return NULL;
    return Py_BuildValue("i",_openf(s));
}

static PyObject *fgetch(PyObject* self,PyObject* args)
{
    char s[2];
    s[0]=fgetc(f);
    return Py_BuildValue("s",s);
}

static PyObject *fgetd(PyObject* self,PyObject* args)
{
    return Py_BuildValue("i",_fgetd());
}

static PyObject *fgetstr(PyObject* self,PyObject* args)
{
    return Py_BuildValue("s",_fgetstr());
}

static PyObject *closef(PyObject* self,PyObject* args)
{
    return fclose(f),Py_BuildValue("i",0);
}

static PyMethodDef methods[]=
{
    {"open",openf,METH_VARARGS,"Open a file"},
    {"fgetc",fgetch,METH_VARARGS,"Get one char"},
    {"fgetd",fgetd,METH_VARARGS,"Get an integer"},
    {"fgets",fgetstr,METH_VARARGS,"Get a line"},
    {"fclose",closef,METH_VARARGS,"Close the file"}
};

static struct PyModuleDef of=
{
    PyModuleDef_HEAD_INIT,
    "openext",
    "Open files in windows with hidden extentions",
    -1,
    methods
};

PyMODINIT_FUNC PyInit_openfile(void)
{
    return PyModule_Create(&of);
}