| Guido van Rossum | 049cd90 | 1996-12-05 23:30:48 +0000 | [diff] [blame^] | 1 | #ifndef CSTRINGIO_INCLUDED |
| 2 | #define CSTRINGIO_INCLUDED |
| 3 | /* |
| 4 | |
| 5 | $Id$ |
| 6 | |
| 7 | cStringIO C API |
| 8 | |
| 9 | Copyright |
| 10 | |
| 11 | Copyright 1996 Digital Creations, L.C., 910 Princess Anne |
| 12 | Street, Suite 300, Fredericksburg, Virginia 22401 U.S.A. All |
| 13 | rights reserved. Copyright in this software is owned by DCLC, |
| 14 | unless otherwise indicated. Permission to use, copy and |
| 15 | distribute this software is hereby granted, provided that the |
| 16 | above copyright notice appear in all copies and that both that |
| 17 | copyright notice and this permission notice appear. Note that |
| 18 | any product, process or technology described in this software |
| 19 | may be the subject of other Intellectual Property rights |
| 20 | reserved by Digital Creations, L.C. and are not licensed |
| 21 | hereunder. |
| 22 | |
| 23 | Trademarks |
| 24 | |
| 25 | Digital Creations & DCLC, are trademarks of Digital Creations, L.C.. |
| 26 | All other trademarks are owned by their respective companies. |
| 27 | |
| 28 | No Warranty |
| 29 | |
| 30 | The software is provided "as is" without warranty of any kind, |
| 31 | either express or implied, including, but not limited to, the |
| 32 | implied warranties of merchantability, fitness for a particular |
| 33 | purpose, or non-infringement. This software could include |
| 34 | technical inaccuracies or typographical errors. Changes are |
| 35 | periodically made to the software; these changes will be |
| 36 | incorporated in new editions of the software. DCLC may make |
| 37 | improvements and/or changes in this software at any time |
| 38 | without notice. |
| 39 | |
| 40 | Limitation Of Liability |
| 41 | |
| 42 | In no event will DCLC be liable for direct, indirect, special, |
| 43 | incidental, economic, cover, or consequential damages arising |
| 44 | out of the use of or inability to use this software even if |
| 45 | advised of the possibility of such damages. Some states do not |
| 46 | allow the exclusion or limitation of implied warranties or |
| 47 | limitation of liability for incidental or consequential |
| 48 | damages, so the above limitation or exclusion may not apply to |
| 49 | you. |
| 50 | |
| 51 | If you have questions regarding this software, |
| 52 | contact: |
| 53 | |
| 54 | info@digicool.com |
| 55 | Digital Creations L.C. |
| 56 | |
| 57 | (540) 371-6909 |
| 58 | |
| 59 | |
| 60 | This header provides access to cStringIO objects from C. |
| 61 | Functions are provided for calling cStringIO objects and |
| 62 | macros are provided for testing whether you have cStringIO |
| 63 | objects. |
| 64 | |
| 65 | Before calling any of the functions or macros, you must initialize |
| 66 | the routines with: |
| 67 | |
| 68 | PycStringIO_IMPORT |
| 69 | |
| 70 | This would typically be done in your init function. |
| 71 | |
| 72 | $Log$ |
| 73 | Revision 2.1 1996/12/05 23:30:48 guido |
| 74 | Jim F's brainchild |
| 75 | |
| 76 | |
| 77 | */ |
| 78 | |
| 79 | |
| 80 | /* Basic fuctions to manipulate cStringIO objects from C */ |
| 81 | |
| 82 | /* Read a string. If the last argument is -1, the remainder will be read. */ |
| 83 | static int(*PycStringIO_cread)(PyObject *, char **, int)=NULL; |
| 84 | |
| 85 | /* Read a line */ |
| 86 | static int(*PycStringIO_creadline)(PyObject *, char **)=NULL; |
| 87 | |
| 88 | /* Write a string */ |
| 89 | static int(*PycStringIO_cwrite)(PyObject *, char *, int)=NULL; |
| 90 | |
| 91 | /* Get the cStringIO object as a Python string */ |
| 92 | static PyObject(*PycStringIO_cgetvalue)(PyObject *)=NULL; |
| 93 | |
| 94 | /* Create a new output object */ |
| 95 | static PyObject(*PycStringIO_NewOutput)(void)=NULL; |
| 96 | |
| 97 | /* Create an input object from a Python string */ |
| 98 | static PyObject(*PycStringIO_NewInput)(PyObject *)=NULL; |
| 99 | |
| 100 | /* The Python types for cStringIO input and output objects. |
| 101 | Note that you can do input on an output object. |
| 102 | */ |
| 103 | static PyObject *PycStringIO_InputType=NULL, *PycStringIO_OutputType=NULL; |
| 104 | |
| 105 | /* These can be used to test if you have one */ |
| 106 | #define PycStringIO_InputCheck(O) ((O)->ob_type==PycStringIO_InputType) |
| 107 | #define PycStringIO_OutputCheck(O) ((O)->ob_type==PycStringIO_OutputType) |
| 108 | |
| 109 | /* The following is used to implement PycString_IMPORT: */ |
| 110 | static PyObject *PycStringIO_Module=NULL, *PycStringIO_CObject=NULL; |
| 111 | |
| 112 | #define IMPORT_C_OBJECT(N) \ |
| 113 | if((PycStringIO_CObject=PyObject_GetAttrString(PycStringIO_Module, #N))) { \ |
| 114 | PycStringIO_ ## N = PyCObject_AsVoidPtr(PycStringIO_CObject); \ |
| 115 | Py_DECREF(PycStringIO_CObject); } |
| 116 | |
| 117 | #define PycString_IMPORT \ |
| 118 | if((PycStringIO_Module=PyImport_ImportModule("cStringIO"))) { \ |
| 119 | PycStringIO_InputType=PyObject_GetAttrString(PycStringIO_Module, \ |
| 120 | "InputType"); \ |
| 121 | PycStringIO_OutputType=PyObject_GetAttrString(PycStringIO_Module, \ |
| 122 | "OutputType"); \ |
| 123 | IMPORT_C_OBJECT(cread); \ |
| 124 | IMPORT_C_OBJECT(creadline); \ |
| 125 | IMPORT_C_OBJECT(cwrite); \ |
| 126 | IMPORT_C_OBJECT(NewInput); \ |
| 127 | IMPORT_C_OBJECT(NewOutput); \ |
| 128 | IMPORT_C_OBJECT(cgetvalue); } |
| 129 | |
| 130 | #endif /* CSTRINGIO_INCLUDED */ |