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/*
* wlp.c - Copyright 2000, 2001 by Cosimo Alfarano <Alfarano@CS.UniBo.It>
* You can use this software under the terms of the GPL. If we meet some day,
* and you think this stuff is worth it, you can buy me a beer in return.
*
* Thanks to md for this useful formula. Beer is beer.
*/
#include <Python.h>
#include <stdio.h>
#include <unistd.h>
#include "structs.h"
#include "macro.h"
static FILE *fd = NULL;
struct wlp_list_t *list;
static PyObject *node2dict(struct wlp_node_t *node);
/*
* wlp_setfilebyname(): get FILE* fd from filename string.
*/
static PyObject *wlp_setfilebyname(PyObject *self, PyObject *args) {
char *file;
DBG("setfilebyname\n");
if (!PyArg_ParseTuple(args, "s", &file))
return NULL;
if((fd = fopen(file,"r"))) {
return Py_None;
} else {
PyErr_SetFromErrno(PyExc_Exception);
/*
PyErr_SetString(PyExc_Exception,
(errno<=sys_nerr-1)?
sys_errlist[errno]:
"Unknown Error on fopen() of confifuration file");
*/
return NULL;
}
}
/*
* wlp_setfilebydf(): get FILE* fd from FileObject.
*/
static PyObject *wlp_setfilebyfd(PyObject *self, PyObject *args) {
PyObject *file = NULL;
if(!PyArg_ParseTuple(args, "O", &file))
return NULL;
if(!file)
return NULL;
if(!PyFile_Check(file))
return NULL;
fd = PyFile_AsFile(file);
return Py_None;
}
/*
* wlp_mkdict(): make a dictonary of the form
* {ownername: {var1: val1, var2: val2,...}}
*/
static PyObject *wlp_mkdict(PyObject *self, PyObject *args) {
PyObject *pydicttmp = NULL;
PyObject *pydict = PyDict_New();
struct wlp_node_t *tmp;
int count;
if(!pydict)
return NULL;
/* fopen()*/
if(fd)
parse(fd);
else
return Py_None;
if(list)
for(tmp = list->head, count = 0;
tmp != list->head || count == 0;
tmp = tmp->next, count++) {
DBG("FOUND(%d) '%s' ('%s': '%s')\n",count,tmp->owner,tmp->left,tmp->right);
pydicttmp = PyDict_GetItem(pydict,
PyString_FromString(tmp->owner));
if(!pydicttmp) {
DBG("%s: owner not found, create new item\n",
tmp->owner);
PyDict_SetItemString(pydict,
tmp->owner,
node2dict(tmp));
} else {
DBG("%s: owner found,appendig items\n",
tmp->owner);
PyDict_SetItemString(pydicttmp,
tmp->left,
Py_BuildValue("s",tmp->right));
PyDict_SetItemString(pydict,
tmp->owner,
pydicttmp);
}
}
return pydict;
}
/*
* node2dict(): transoform a wlp_node_t node in a python dictionary of the form
* { var: val }
* to be used by mkdict()
*/
static PyObject *node2dict(struct wlp_node_t *node) {
PyObject *dict = PyDict_New();
if(!dict)
dict = Py_None;
else {
PyDict_SetItem(dict,
Py_BuildValue("s",node->left),
Py_BuildValue("s",node->right));
}
return dict;
}
static PyMethodDef wlp_methods[] = {
{"mkdict", wlp_mkdict, METH_VARARGS},
{"setfilebyname", wlp_setfilebyname, METH_VARARGS},
{"setfilebyfd", wlp_setfilebyfd, METH_VARARGS},
{NULL,NULL}
};
void initwlp() {
(void) Py_InitModule("wlp",wlp_methods);
}
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