Jim F's brainchild

Include/cStringIO.h

+#ifndef CSTRINGIO_INCLUDED
+#define CSTRINGIO_INCLUDED
+/*
+
+  $Id$
+
+  cStringIO C API
+
+     Copyright 
+
+       Copyright 1996 Digital Creations, L.C., 910 Princess Anne
+       Street, Suite 300, Fredericksburg, Virginia 22401 U.S.A. All
+       rights reserved.  Copyright in this software is owned by DCLC,
+       unless otherwise indicated. Permission to use, copy and
+       distribute this software is hereby granted, provided that the
+       above copyright notice appear in all copies and that both that
+       copyright notice and this permission notice appear. Note that
+       any product, process or technology described in this software
+       may be the subject of other Intellectual Property rights
+       reserved by Digital Creations, L.C. and are not licensed
+       hereunder.
+
+     Trademarks 
+
+       Digital Creations & DCLC, are trademarks of Digital Creations, L.C..
+       All other trademarks are owned by their respective companies. 
+
+     No Warranty 
+
+       The software is provided "as is" without warranty of any kind,
+       either express or implied, including, but not limited to, the
+       implied warranties of merchantability, fitness for a particular
+       purpose, or non-infringement. This software could include
+       technical inaccuracies or typographical errors. Changes are
+       periodically made to the software; these changes will be
+       incorporated in new editions of the software. DCLC may make
+       improvements and/or changes in this software at any time
+       without notice.
+
+     Limitation Of Liability 
+
+       In no event will DCLC be liable for direct, indirect, special,
+       incidental, economic, cover, or consequential damages arising
+       out of the use of or inability to use this software even if
+       advised of the possibility of such damages. Some states do not
+       allow the exclusion or limitation of implied warranties or
+       limitation of liability for incidental or consequential
+       damages, so the above limitation or exclusion may not apply to
+       you.
+
+    If you have questions regarding this software,
+    contact:
+   
+      info@digicool.com
+      Digital Creations L.C.  
+   
+      (540) 371-6909
+
+
+  This header provides access to cStringIO objects from C.
+  Functions are provided for calling cStringIO objects and
+  macros are provided for testing whether you have cStringIO 
+  objects.
+
+  Before calling any of the functions or macros, you must initialize
+  the routines with:
+
+    PycStringIO_IMPORT
+
+  This would typically be done in your init function.
+
+  $Log$
+  Revision 2.1  1996/12/05 23:30:48  guido
+  Jim F's brainchild
+
+
+*/
+
+
+/* Basic fuctions to manipulate cStringIO objects from C */
+
+/* Read a string.  If the last argument is -1, the remainder will be read. */
+static int(*PycStringIO_cread)(PyObject *, char **, int)=NULL;
+
+/* Read a line */
+static int(*PycStringIO_creadline)(PyObject *, char **)=NULL;
+
+/* Write a string */
+static int(*PycStringIO_cwrite)(PyObject *, char *, int)=NULL;
+
+/* Get the cStringIO object as a Python string */
+static PyObject(*PycStringIO_cgetvalue)(PyObject *)=NULL;
+
+/* Create a new output object */
+static PyObject(*PycStringIO_NewOutput)(void)=NULL;
+
+/* Create an input object from a Python string */
+static PyObject(*PycStringIO_NewInput)(PyObject *)=NULL;
+
+/* The Python types for cStringIO input and output objects.
+   Note that you can do input on an output object.
+*/
+static PyObject *PycStringIO_InputType=NULL, *PycStringIO_OutputType=NULL;
+
+/* These can be used to test if you have one */
+#define PycStringIO_InputCheck(O) ((O)->ob_type==PycStringIO_InputType)
+#define PycStringIO_OutputCheck(O) ((O)->ob_type==PycStringIO_OutputType)
+
+/* The following is used to implement PycString_IMPORT: */
+static PyObject *PycStringIO_Module=NULL, *PycStringIO_CObject=NULL;
+
+#define IMPORT_C_OBJECT(N) \
+  if((PycStringIO_CObject=PyObject_GetAttrString(PycStringIO_Module, #N))) { \
+    PycStringIO_ ## N = PyCObject_AsVoidPtr(PycStringIO_CObject); \
+    Py_DECREF(PycStringIO_CObject); }
+
+#define PycString_IMPORT \
+  if((PycStringIO_Module=PyImport_ImportModule("cStringIO"))) { \
+    PycStringIO_InputType=PyObject_GetAttrString(PycStringIO_Module, \
+						 "InputType"); \
+    PycStringIO_OutputType=PyObject_GetAttrString(PycStringIO_Module, \
+						  "OutputType"); \
+    IMPORT_C_OBJECT(cread); \
+    IMPORT_C_OBJECT(creadline); \
+    IMPORT_C_OBJECT(cwrite); \
+    IMPORT_C_OBJECT(NewInput); \
+    IMPORT_C_OBJECT(NewOutput); \
+    IMPORT_C_OBJECT(cgetvalue);   }
+
+#endif /* CSTRINGIO_INCLUDED */