Export C API from this module.

Remove several macros and #includes; py_curses.h contains them now.

Modules/_cursesmodule.c

@@ -95,23 +95,19 @@ Form extension (ncurses and probably SYSV):
 
 /* Release Number */
 
-char *PyCursesVersion = "1.6";
+char *PyCursesVersion = "2.1";
 
 /* Includes */
 
 #include "Python.h"
+#define CURSES_MODULE
+#include "py_curses.h"
 
 #ifdef __osf__
 #define _XOPEN_SOURCE_EXTENDED  /* Define macro for OSF/1 */
 #define STRICT_SYSV_CURSES      /* Don't use ncurses extensions */
 #endif
 
-#ifdef HAVE_NCURSES_H
-#include <ncurses.h>
-#else
-#include <curses.h>
-#endif
-
 /*  These prototypes are in <term.h>, but including this header 
     #defines many common symbols (such as "lines") which breaks the 
     curses module in other ways.  So the code will just specify 
@@ -130,46 +126,40 @@ typedef chtype attr_t;           /* No attr_t type is available */
 
 static PyObject *PyCursesError;
 
-/* general error messages */
-static char *catchall_ERR  = "curses function returned ERR";
-static char *catchall_NULL = "curses function returned NULL";
-
 /* Tells whether setupterm() has been called to initialise terminfo.  */
 static int initialised_setupterm = FALSE;
 
 /* Tells whether initscr() has been called to initialise curses.  */
 static int initialised = FALSE;
 
-/* Tells whether start_color() has been called to initialise colorusage. */
+/* Tells whether start_color() has been called to initialise color usage. */
 static int initialisedcolors = FALSE;
 
 /* Utility Macros */
-#define ARG_COUNT(X) \
-	(((X) == NULL) ? 0 : (PyTuple_Check(X) ? PyTuple_Size(X) : 1))
-
 #define PyCursesSetupTermCalled \
   if (initialised_setupterm != TRUE) { \
                   PyErr_SetString(PyCursesError, \
                                   "must call (at least) setupterm() first"); \
-                  return NULL; }
+                  return 0; }
 
 #define PyCursesInitialised \
   if (initialised != TRUE) { \
                   PyErr_SetString(PyCursesError, \
                                   "must call initscr() first"); \
-                  return NULL; }
+                  return 0; }
 
 #define PyCursesInitialisedColor \
   if (initialisedcolors != TRUE) { \
                   PyErr_SetString(PyCursesError, \
                                   "must call start_color() first"); \
-                  return NULL; }
+                  return 0; }
 
 /* Utility Functions */
 
 /*
  * Check the return code from a curses function and return None 
- * or raise an exception as appropriate.
+ * or raise an exception as appropriate.  These are exported using the
+ * CObject API. 
  */
 
 static PyObject *
@@ -202,22 +192,36 @@ PyCurses_ConvertToChtype(PyObject *obj, chtype *ch)
   return 1;
 }
 
+/* Function versions of the 3 functions for tested whether curses has been
+   initialised or not. */
+   
+static int func_PyCursesSetupTermCalled(void)
+{
+    PyCursesSetupTermCalled;
+    return 1;
+}
+
+static int func_PyCursesInitialised(void)
+{
+    PyCursesInitialised;
+    return 1;
+}
+
+static int func_PyCursesInitialisedColor(void)
+{
+    PyCursesInitialisedColor;
+    return 1;
+}
+
 /*****************************************************************************
  The Window Object
 ******************************************************************************/
 
-/* Definition of the window object and window type */
-
-typedef struct {
-	PyObject_HEAD
-	WINDOW *win;
-} PyCursesWindowObject;
+/* Definition of the window type */
 
 PyTypeObject PyCursesWindow_Type;
 
-#define PyCursesWindow_Check(v)	 ((v)->ob_type == &PyCursesWindow_Type)
-
-/* Function Prototype Macros - They are ugly but very, very useful. ;-)
+/* Function prototype macros for Window object
 
    X - function name
    TYPE - parameter Type
@@ -1458,75 +1462,6 @@ PyTypeObject PyCursesWindow_Type = {
  Global Functions
 **********************************************************************/
 
-static PyObject *ModDict;
-
-/* Function Prototype Macros - They are ugly but very, very useful. ;-)
-
-   X - function name
-   TYPE - parameter Type
-   ERGSTR - format string for construction of the return value
-   PARSESTR - format string for argument parsing
-   */
-
-#define NoArgNoReturnFunction(X) \
-static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
-{ \
-  PyCursesInitialised \
-  if (!PyArg_NoArgs(args)) return NULL; \
-  return PyCursesCheckERR(X(), # X); }
-
-#define NoArgOrFlagNoReturnFunction(X) \
-static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
-{ \
-  int flag = 0; \
-  PyCursesInitialised \
-  switch(ARG_COUNT(args)) { \
-  case 0: \
-    return PyCursesCheckERR(X(), # X); \
-  case 1: \
-    if (!PyArg_Parse(args, "i;True(1) or False(0)", &flag)) return NULL; \
-    if (flag) return PyCursesCheckERR(X(), # X); \
-    else return PyCursesCheckERR(no ## X (), # X); \
-  default: \
-    PyErr_SetString(PyExc_TypeError, # X " requires 0 or 1 arguments"); \
-    return NULL; } }
-
-#define NoArgReturnIntFunction(X) \
-static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
-{ \
- PyCursesInitialised \
- if (!PyArg_NoArgs(args)) return NULL; \
- return PyInt_FromLong((long) X()); }
-
-
-#define NoArgReturnStringFunction(X) \
-static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
-{ \
-  PyCursesInitialised \
-  if (!PyArg_NoArgs(args)) return NULL; \
-  return PyString_FromString(X()); }
-
-#define NoArgTrueFalseFunction(X) \
-static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
-{ \
-  PyCursesInitialised \
-  if (!PyArg_NoArgs(args)) return NULL; \
-  if (X () == FALSE) { \
-    Py_INCREF(Py_False); \
-    return Py_False; \
-  } \
-  Py_INCREF(Py_True); \
-  return Py_True; }
-
-#define NoArgNoReturnVoidFunction(X) \
-static PyObject *PyCurses_ ## X (PyObject *self, PyObject *args) \
-{ \
-  PyCursesInitialised \
-  if (!PyArg_NoArgs(args)) return NULL; \
-  X(); \
-  Py_INCREF(Py_None); \
-  return Py_None; }
-
 NoArgNoReturnFunction(beep)
 NoArgNoReturnFunction(def_prog_mode)
 NoArgNoReturnFunction(def_shell_mode)
@@ -1805,6 +1740,8 @@ PyCurses_Init_Pair(PyObject *self, PyObject *args)
   return PyCursesCheckERR(init_pair(pair, f, b), "init_pair");
 }
 
+static PyObject *ModDict;
+
 static PyObject * 
 PyCurses_InitScr(PyObject *self, PyObject *args)
 {
@@ -2497,14 +2434,25 @@ static PyMethodDef PyCurses_methods[] = {
 void
 init_curses(void)
 {
-	PyObject *m, *d, *v;
+	PyObject *m, *d, *v, *c_api_object;
+	static void *PyCurses_API[PyCurses_API_pointers];
+
+	/* Initialize the C API pointer array */
+	PyCurses_API[0] = (void *)&PyCursesWindow_Type;
+	PyCurses_API[1] = (void *)func_PyCursesSetupTermCalled;
+	PyCurses_API[2] = (void *)func_PyCursesInitialised;
+	PyCurses_API[3] = (void *)func_PyCursesInitialisedColor;
 
 	/* Create the module and add the functions */
 	m = Py_InitModule("_curses", PyCurses_methods);
 
 	/* Add some symbolic constants to the module */
 	d = PyModule_GetDict(m);
-	ModDict = d; /* For PyCurses_InitScr */
+	ModDict = d; /* For PyCurses_InitScr to use later */
+
+	/* Add a CObject for the C API */
+	c_api_object = PyCObject_FromVoidPtr((void *)PyCurses_API, NULL);
+	PyDict_SetItemString(d, "_C_API", c_api_object);
 
 	/* For exception curses.error */
 	PyCursesError = PyErr_NewException("_curses.error", NULL, NULL);