From a5ce4bc032a03aa4d6d19d1bbed2a6a03f4afd17 Mon Sep 17 00:00:00 2001
From: Danila Fedorin <danila.fedorin@gmail.com>
Date: Fri, 5 May 2017 19:59:13 -0700
Subject: [PATCH] Write simple initialization function as well as a test
 function.

---
 include/pyliblexmodule.h | 27 +++++++++++++++++++++++++++
 src/pyliblexmodule.c     | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+)
 create mode 100644 include/pyliblexmodule.h
 create mode 100644 src/pyliblexmodule.c

diff --git a/include/pyliblexmodule.h b/include/pyliblexmodule.h
new file mode 100644
index 0000000..ce14e77
--- /dev/null
+++ b/include/pyliblexmodule.h
@@ -0,0 +1,27 @@
+#ifndef PYLIBLEX_H
+#define PYLIBLEX_H
+
+#include "Python.h"
+
+static PyObject* pyliblex_init(PyObject* self, PyObject* args);
+static PyObject* pyliblex_add_definitions(PyObject* self, PyObject* args);
+static PyObject* pyliblex_lex(PyObject* self, PyObject* args);
+static PyObject* pyliblex_test(PyObject* self, PyObject* args);
+
+static const char module_docstring[] = "A wrapper around a homemade lexing library, liblex.";
+static PyMethodDef module_methods[] = {
+  {"init", pyliblex_init, METH_VARARGS, "Initialize a liblex library object." },
+  {"test", pyliblex_test, METH_VARARGS, "Tests whether the library is working." }, 
+  { NULL, NULL, 0, NULL }
+};
+static struct PyModuleDef module_object = {
+  PyModuleDef_HEAD_INIT,
+  "pyliblex",
+  module_docstring,
+  -1,
+  module_methods
+};
+
+PyMODINIT_FUNC PyInit_pyliblex();
+
+#endif
diff --git a/src/pyliblexmodule.c b/src/pyliblexmodule.c
new file mode 100644
index 0000000..7931c40
--- /dev/null
+++ b/src/pyliblexmodule.c
@@ -0,0 +1,36 @@
+#include "pyliblexmodule.h"
+#include "liblex.h"
+#include "eval.h"
+
+static void _pyliblex_free_eval(PyObject* object){
+  eval_config* config = PyCapsule_GetPointer(object, NULL);
+  if(config){
+    liblex_result result = eval_config_free(config);
+    if(result != LIBLEX_SUCCESS){
+      PyErr_NoMemory();
+    }
+  }
+}
+
+static PyObject* pyliblex_init(PyObject* self, PyObject* args){
+  PyObject* return_object = NULL;
+  eval_config* config = malloc(sizeof(*config));
+
+  if(config){
+    eval_config_init(config);
+    return_object = PyCapsule_New(config, NULL, _pyliblex_free_eval);
+  } else {
+    return_object = PyErr_NoMemory(); 
+  }
+
+  return return_object;
+}
+static PyObject* pyliblex_add_definitions(PyObject* self, PyObject* args);
+static PyObject* pyliblex_lex(PyObject* self, PyObject* args);
+static PyObject* pyliblex_test(PyObject* self, PyObject* args) {
+  return PyUnicode_FromString("Test from liblex!");
+}
+
+PyMODINIT_FUNC PyInit_pyliblex() {
+  return PyModule_Create(&module_object);
+}