_template.c should grow to include minor utility methods that benefit…

… from moving into C

src/c/_template.c

@@ -0,0 +1,49 @@
+/*
+ * Implementing a few of the functions needed for Template.py in C
+ *
+ * (c) 2009, R. Tyler Ballance <tyler@slide.com>
+ */
+#include <Python.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static PyObject *unspecifiedModule = NULL;
+static PyObject *unspecified = NULL;
+
+static PyObject *py_valordefault(PyObject *self, PyObject *args, PyObject *kwargs)
+{
+    PyObject *value, *def, *res;
+
+    if (!PyArg_ParseTuple(args, "OO", &value, &def))
+        return NULL;
+
+    if (value == unspecified)
+        return def;
+    return value;
+}
+
+static const char _template_doc[] = "\
+\n\
+";
+static struct PyMethodDef _template_methods[] = {
+    {"valOrDefault", py_valordefault, METH_VARARGS, NULL},
+    {NULL}
+};
+
+PyMODINIT_FUNC init_template()
+{
+    PyObject *module = Py_InitModule3("_template", _template_methods, 
+            _template_doc);
+    unspecifiedModule = PyImport_ImportModule("Cheetah.Unspecified");
+    if ( (PyErr_Occurred()) || (!unspecifiedModule) )
+        return NULL;
+    unspecified = PyObject_GetAttrString(unspecifiedModule, "Unspecified");
+    if (PyErr_Occurred())
+        return NULL;
+}
+
+#ifdef __cplusplus
+}
+#endif