cpython/Include/cStringIO.h

131 lines
4.5 KiB
C

#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 */