Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 1 | /* ------------------------------------------------------------------------ |
| 2 | |
| 3 | Python Codec Registry and support functions |
| 4 | |
| 5 | Written by Marc-Andre Lemburg (mal@lemburg.com). |
| 6 | |
Guido van Rossum | 16b1ad9 | 2000-08-03 16:24:25 +0000 | [diff] [blame] | 7 | Copyright (c) Corporation for National Research Initiatives. |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 8 | |
| 9 | ------------------------------------------------------------------------ */ |
| 10 | |
| 11 | #include "Python.h" |
| 12 | #include <ctype.h> |
| 13 | |
Victor Stinner | f5cff56 | 2011-10-14 02:13:11 +0200 | [diff] [blame] | 14 | const char *Py_hexdigits = "0123456789abcdef"; |
| 15 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 16 | /* --- Codec Registry ----------------------------------------------------- */ |
| 17 | |
| 18 | /* Import the standard encodings package which will register the first |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 19 | codec search function. |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 20 | |
| 21 | This is done in a lazy way so that the Unicode implementation does |
| 22 | not downgrade startup time of scripts not needing it. |
| 23 | |
Guido van Rossum | b95de4f | 2000-03-31 17:25:23 +0000 | [diff] [blame] | 24 | ImportErrors are silently ignored by this function. Only one try is |
| 25 | made. |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 26 | |
| 27 | */ |
| 28 | |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 29 | static int _PyCodecRegistry_Init(void); /* Forward */ |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 30 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 31 | int PyCodec_Register(PyObject *search_function) |
| 32 | { |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 33 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 34 | if (interp->codec_search_path == NULL && _PyCodecRegistry_Init()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 35 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 36 | if (search_function == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 37 | PyErr_BadArgument(); |
| 38 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 39 | } |
| 40 | if (!PyCallable_Check(search_function)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 41 | PyErr_SetString(PyExc_TypeError, "argument must be callable"); |
| 42 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 43 | } |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 44 | return PyList_Append(interp->codec_search_path, search_function); |
Guido van Rossum | b95de4f | 2000-03-31 17:25:23 +0000 | [diff] [blame] | 45 | |
| 46 | onError: |
| 47 | return -1; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 48 | } |
| 49 | |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 50 | /* Convert a string to a normalized Python string: all characters are |
| 51 | converted to lower case, spaces are replaced with underscores. */ |
| 52 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 53 | static |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 54 | PyObject *normalizestring(const char *string) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 55 | { |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 56 | size_t i; |
Guido van Rossum | 582acec | 2000-06-28 22:07:35 +0000 | [diff] [blame] | 57 | size_t len = strlen(string); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 58 | char *p; |
| 59 | PyObject *v; |
Guido van Rossum | 21431e8 | 2007-10-19 21:48:41 +0000 | [diff] [blame] | 60 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 61 | if (len > PY_SSIZE_T_MAX) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 62 | PyErr_SetString(PyExc_OverflowError, "string is too large"); |
| 63 | return NULL; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 64 | } |
Guido van Rossum | 21431e8 | 2007-10-19 21:48:41 +0000 | [diff] [blame] | 65 | |
| 66 | p = PyMem_Malloc(len + 1); |
| 67 | if (p == NULL) |
Victor Stinner | cc35159 | 2013-07-12 00:02:55 +0200 | [diff] [blame] | 68 | return PyErr_NoMemory(); |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 69 | for (i = 0; i < len; i++) { |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 70 | char ch = string[i]; |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 71 | if (ch == ' ') |
| 72 | ch = '-'; |
| 73 | else |
Antoine Pitrou | cf9d3c0 | 2011-07-24 02:27:04 +0200 | [diff] [blame] | 74 | ch = Py_TOLOWER(Py_CHARMASK(ch)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 75 | p[i] = ch; |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 76 | } |
Guido van Rossum | 21431e8 | 2007-10-19 21:48:41 +0000 | [diff] [blame] | 77 | p[i] = '\0'; |
| 78 | v = PyUnicode_FromString(p); |
| 79 | if (v == NULL) |
| 80 | return NULL; |
| 81 | PyMem_Free(p); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 82 | return v; |
| 83 | } |
| 84 | |
| 85 | /* Lookup the given encoding and return a tuple providing the codec |
| 86 | facilities. |
| 87 | |
| 88 | The encoding string is looked up converted to all lower-case |
| 89 | characters. This makes encodings looked up through this mechanism |
| 90 | effectively case-insensitive. |
| 91 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 92 | If no codec is found, a LookupError is set and NULL returned. |
Guido van Rossum | b95de4f | 2000-03-31 17:25:23 +0000 | [diff] [blame] | 93 | |
| 94 | As side effect, this tries to load the encodings package, if not |
| 95 | yet done. This is part of the lazy load strategy for the encodings |
| 96 | package. |
| 97 | |
| 98 | */ |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 99 | |
| 100 | PyObject *_PyCodec_Lookup(const char *encoding) |
| 101 | { |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 102 | PyInterpreterState *interp; |
Guido van Rossum | 5ba3c84 | 2000-03-24 20:52:23 +0000 | [diff] [blame] | 103 | PyObject *result, *args = NULL, *v; |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 104 | Py_ssize_t i, len; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 105 | |
Fred Drake | 766de83 | 2000-05-09 19:55:59 +0000 | [diff] [blame] | 106 | if (encoding == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 107 | PyErr_BadArgument(); |
| 108 | goto onError; |
Fred Drake | 766de83 | 2000-05-09 19:55:59 +0000 | [diff] [blame] | 109 | } |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 110 | |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 111 | interp = PyThreadState_GET()->interp; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 112 | if (interp->codec_search_path == NULL && _PyCodecRegistry_Init()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 113 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 114 | |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 115 | /* Convert the encoding to a normalized Python string: all |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 116 | characters are converted to lower case, spaces and hyphens are |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 117 | replaced with underscores. */ |
| 118 | v = normalizestring(encoding); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 119 | if (v == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 120 | goto onError; |
Guido van Rossum | 21431e8 | 2007-10-19 21:48:41 +0000 | [diff] [blame] | 121 | PyUnicode_InternInPlace(&v); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 122 | |
| 123 | /* First, try to lookup the name in the registry dictionary */ |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 124 | result = PyDict_GetItem(interp->codec_search_cache, v); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 125 | if (result != NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 126 | Py_INCREF(result); |
| 127 | Py_DECREF(v); |
| 128 | return result; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 129 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 130 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 131 | /* Next, scan the search functions in order of registration */ |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 132 | args = PyTuple_New(1); |
| 133 | if (args == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 134 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 135 | PyTuple_SET_ITEM(args,0,v); |
Guido van Rossum | 5ba3c84 | 2000-03-24 20:52:23 +0000 | [diff] [blame] | 136 | |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 137 | len = PyList_Size(interp->codec_search_path); |
Guido van Rossum | 5ba3c84 | 2000-03-24 20:52:23 +0000 | [diff] [blame] | 138 | if (len < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 139 | goto onError; |
Guido van Rossum | b95de4f | 2000-03-31 17:25:23 +0000 | [diff] [blame] | 140 | if (len == 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 141 | PyErr_SetString(PyExc_LookupError, |
| 142 | "no codec search functions registered: " |
| 143 | "can't find encoding"); |
| 144 | goto onError; |
Guido van Rossum | b95de4f | 2000-03-31 17:25:23 +0000 | [diff] [blame] | 145 | } |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 146 | |
| 147 | for (i = 0; i < len; i++) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 148 | PyObject *func; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 149 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 150 | func = PyList_GetItem(interp->codec_search_path, i); |
| 151 | if (func == NULL) |
| 152 | goto onError; |
| 153 | result = PyEval_CallObject(func, args); |
| 154 | if (result == NULL) |
| 155 | goto onError; |
| 156 | if (result == Py_None) { |
| 157 | Py_DECREF(result); |
| 158 | continue; |
| 159 | } |
| 160 | if (!PyTuple_Check(result) || PyTuple_GET_SIZE(result) != 4) { |
| 161 | PyErr_SetString(PyExc_TypeError, |
| 162 | "codec search functions must return 4-tuples"); |
| 163 | Py_DECREF(result); |
| 164 | goto onError; |
| 165 | } |
| 166 | break; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 167 | } |
| 168 | if (i == len) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 169 | /* XXX Perhaps we should cache misses too ? */ |
| 170 | PyErr_Format(PyExc_LookupError, |
Martin v. Löwis | eb42b02 | 2002-09-26 16:01:24 +0000 | [diff] [blame] | 171 | "unknown encoding: %s", encoding); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 172 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | /* Cache and return the result */ |
Neal Norwitz | 9edcc2e | 2007-08-11 04:58:26 +0000 | [diff] [blame] | 176 | if (PyDict_SetItem(interp->codec_search_cache, v, result) < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 177 | Py_DECREF(result); |
| 178 | goto onError; |
Neal Norwitz | 9edcc2e | 2007-08-11 04:58:26 +0000 | [diff] [blame] | 179 | } |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 180 | Py_DECREF(args); |
| 181 | return result; |
| 182 | |
| 183 | onError: |
| 184 | Py_XDECREF(args); |
| 185 | return NULL; |
| 186 | } |
| 187 | |
Nick Coghlan | 8fad167 | 2014-09-15 23:50:44 +1200 | [diff] [blame] | 188 | int _PyCodec_Forget(const char *encoding) |
| 189 | { |
| 190 | PyInterpreterState *interp; |
| 191 | PyObject *v; |
| 192 | int result; |
| 193 | |
| 194 | interp = PyThreadState_GET()->interp; |
| 195 | if (interp->codec_search_path == NULL) { |
| 196 | return -1; |
| 197 | } |
| 198 | |
| 199 | /* Convert the encoding to a normalized Python string: all |
| 200 | characters are converted to lower case, spaces and hyphens are |
| 201 | replaced with underscores. */ |
| 202 | v = normalizestring(encoding); |
| 203 | if (v == NULL) { |
| 204 | return -1; |
| 205 | } |
| 206 | |
| 207 | /* Drop the named codec from the internal cache */ |
| 208 | result = PyDict_DelItem(interp->codec_search_cache, v); |
| 209 | Py_DECREF(v); |
| 210 | |
| 211 | return result; |
| 212 | } |
| 213 | |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 214 | /* Codec registry encoding check API. */ |
| 215 | |
| 216 | int PyCodec_KnownEncoding(const char *encoding) |
| 217 | { |
| 218 | PyObject *codecs; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 219 | |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 220 | codecs = _PyCodec_Lookup(encoding); |
| 221 | if (!codecs) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 222 | PyErr_Clear(); |
| 223 | return 0; |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 224 | } |
| 225 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 226 | Py_DECREF(codecs); |
| 227 | return 1; |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 228 | } |
| 229 | } |
| 230 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 231 | static |
| 232 | PyObject *args_tuple(PyObject *object, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 233 | const char *errors) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 234 | { |
| 235 | PyObject *args; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 236 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 237 | args = PyTuple_New(1 + (errors != NULL)); |
| 238 | if (args == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 239 | return NULL; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 240 | Py_INCREF(object); |
| 241 | PyTuple_SET_ITEM(args,0,object); |
| 242 | if (errors) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 243 | PyObject *v; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 244 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 245 | v = PyUnicode_FromString(errors); |
| 246 | if (v == NULL) { |
| 247 | Py_DECREF(args); |
| 248 | return NULL; |
| 249 | } |
| 250 | PyTuple_SET_ITEM(args, 1, v); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 251 | } |
| 252 | return args; |
| 253 | } |
| 254 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 255 | /* Helper function to get a codec item */ |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 256 | |
| 257 | static |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 258 | PyObject *codec_getitem(const char *encoding, int index) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 259 | { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 260 | PyObject *codecs; |
| 261 | PyObject *v; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 262 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 263 | codecs = _PyCodec_Lookup(encoding); |
| 264 | if (codecs == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 265 | return NULL; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 266 | v = PyTuple_GET_ITEM(codecs, index); |
| 267 | Py_DECREF(codecs); |
| 268 | Py_INCREF(v); |
| 269 | return v; |
| 270 | } |
| 271 | |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 272 | /* Helper functions to create an incremental codec. */ |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 273 | static |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 274 | PyObject *codec_makeincrementalcodec(PyObject *codec_info, |
| 275 | const char *errors, |
| 276 | const char *attrname) |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 277 | { |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 278 | PyObject *ret, *inccodec; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 279 | |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 280 | inccodec = PyObject_GetAttrString(codec_info, attrname); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 281 | if (inccodec == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 282 | return NULL; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 283 | if (errors) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 284 | ret = PyObject_CallFunction(inccodec, "s", errors); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 285 | else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 286 | ret = PyObject_CallFunction(inccodec, NULL); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 287 | Py_DECREF(inccodec); |
| 288 | return ret; |
| 289 | } |
| 290 | |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 291 | static |
| 292 | PyObject *codec_getincrementalcodec(const char *encoding, |
| 293 | const char *errors, |
| 294 | const char *attrname) |
| 295 | { |
| 296 | PyObject *codec_info, *ret; |
| 297 | |
| 298 | codec_info = _PyCodec_Lookup(encoding); |
| 299 | if (codec_info == NULL) |
| 300 | return NULL; |
| 301 | ret = codec_makeincrementalcodec(codec_info, errors, attrname); |
| 302 | Py_DECREF(codec_info); |
| 303 | return ret; |
| 304 | } |
| 305 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 306 | /* Helper function to create a stream codec. */ |
| 307 | |
| 308 | static |
| 309 | PyObject *codec_getstreamcodec(const char *encoding, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 310 | PyObject *stream, |
| 311 | const char *errors, |
| 312 | const int index) |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 313 | { |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 314 | PyObject *codecs, *streamcodec, *codeccls; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 315 | |
| 316 | codecs = _PyCodec_Lookup(encoding); |
| 317 | if (codecs == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 318 | return NULL; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 319 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 320 | codeccls = PyTuple_GET_ITEM(codecs, index); |
| 321 | if (errors != NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 322 | streamcodec = PyObject_CallFunction(codeccls, "Os", stream, errors); |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 323 | else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 324 | streamcodec = PyObject_CallFunction(codeccls, "O", stream); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 325 | Py_DECREF(codecs); |
| 326 | return streamcodec; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 327 | } |
| 328 | |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 329 | /* Helpers to work with the result of _PyCodec_Lookup |
| 330 | |
| 331 | */ |
| 332 | PyObject *_PyCodecInfo_GetIncrementalDecoder(PyObject *codec_info, |
| 333 | const char *errors) |
| 334 | { |
| 335 | return codec_makeincrementalcodec(codec_info, errors, |
| 336 | "incrementaldecoder"); |
| 337 | } |
| 338 | |
| 339 | PyObject *_PyCodecInfo_GetIncrementalEncoder(PyObject *codec_info, |
| 340 | const char *errors) |
| 341 | { |
| 342 | return codec_makeincrementalcodec(codec_info, errors, |
| 343 | "incrementalencoder"); |
| 344 | } |
| 345 | |
| 346 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 347 | /* Convenience APIs to query the Codec registry. |
| 348 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 349 | All APIs return a codec object with incremented refcount. |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 350 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 351 | */ |
| 352 | |
| 353 | PyObject *PyCodec_Encoder(const char *encoding) |
| 354 | { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 355 | return codec_getitem(encoding, 0); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | PyObject *PyCodec_Decoder(const char *encoding) |
| 359 | { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 360 | return codec_getitem(encoding, 1); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 361 | } |
| 362 | |
Thomas Wouters | a977329 | 2006-04-21 09:43:23 +0000 | [diff] [blame] | 363 | PyObject *PyCodec_IncrementalEncoder(const char *encoding, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 364 | const char *errors) |
Thomas Wouters | a977329 | 2006-04-21 09:43:23 +0000 | [diff] [blame] | 365 | { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 366 | return codec_getincrementalcodec(encoding, errors, "incrementalencoder"); |
Thomas Wouters | a977329 | 2006-04-21 09:43:23 +0000 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | PyObject *PyCodec_IncrementalDecoder(const char *encoding, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 370 | const char *errors) |
Thomas Wouters | a977329 | 2006-04-21 09:43:23 +0000 | [diff] [blame] | 371 | { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 372 | return codec_getincrementalcodec(encoding, errors, "incrementaldecoder"); |
Thomas Wouters | a977329 | 2006-04-21 09:43:23 +0000 | [diff] [blame] | 373 | } |
| 374 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 375 | PyObject *PyCodec_StreamReader(const char *encoding, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 376 | PyObject *stream, |
| 377 | const char *errors) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 378 | { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 379 | return codec_getstreamcodec(encoding, stream, errors, 2); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 380 | } |
| 381 | |
| 382 | PyObject *PyCodec_StreamWriter(const char *encoding, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 383 | PyObject *stream, |
| 384 | const char *errors) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 385 | { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 386 | return codec_getstreamcodec(encoding, stream, errors, 3); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 387 | } |
| 388 | |
Nick Coghlan | 8b097b4 | 2013-11-13 23:49:21 +1000 | [diff] [blame] | 389 | /* Helper that tries to ensure the reported exception chain indicates the |
| 390 | * codec that was invoked to trigger the failure without changing the type |
| 391 | * of the exception raised. |
| 392 | */ |
| 393 | static void |
| 394 | wrap_codec_error(const char *operation, |
| 395 | const char *encoding) |
| 396 | { |
| 397 | /* TrySetFromCause will replace the active exception with a suitably |
| 398 | * updated clone if it can, otherwise it will leave the original |
| 399 | * exception alone. |
| 400 | */ |
| 401 | _PyErr_TrySetFromCause("%s with '%s' codec failed", |
| 402 | operation, encoding); |
| 403 | } |
| 404 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 405 | /* Encode an object (e.g. an Unicode object) using the given encoding |
| 406 | and return the resulting encoded object (usually a Python string). |
| 407 | |
| 408 | errors is passed to the encoder factory as argument if non-NULL. */ |
| 409 | |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 410 | static PyObject * |
| 411 | _PyCodec_EncodeInternal(PyObject *object, |
| 412 | PyObject *encoder, |
| 413 | const char *encoding, |
| 414 | const char *errors) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 415 | { |
Neal Norwitz | 3715c3e | 2005-11-24 22:09:18 +0000 | [diff] [blame] | 416 | PyObject *args = NULL, *result = NULL; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 417 | PyObject *v = NULL; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 418 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 419 | args = args_tuple(object, errors); |
| 420 | if (args == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 421 | goto onError; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 422 | |
| 423 | result = PyEval_CallObject(encoder, args); |
Nick Coghlan | c4c2580 | 2013-11-15 21:47:37 +1000 | [diff] [blame] | 424 | if (result == NULL) { |
| 425 | wrap_codec_error("encoding", encoding); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 426 | goto onError; |
Nick Coghlan | c4c2580 | 2013-11-15 21:47:37 +1000 | [diff] [blame] | 427 | } |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 428 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 429 | if (!PyTuple_Check(result) || |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 430 | PyTuple_GET_SIZE(result) != 2) { |
| 431 | PyErr_SetString(PyExc_TypeError, |
| 432 | "encoder must return a tuple (object, integer)"); |
| 433 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 434 | } |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 435 | v = PyTuple_GET_ITEM(result,0); |
| 436 | Py_INCREF(v); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 437 | /* We don't check or use the second (integer) entry. */ |
| 438 | |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 439 | Py_DECREF(args); |
| 440 | Py_DECREF(encoder); |
| 441 | Py_DECREF(result); |
| 442 | return v; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 443 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 444 | onError: |
Neal Norwitz | 3715c3e | 2005-11-24 22:09:18 +0000 | [diff] [blame] | 445 | Py_XDECREF(result); |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 446 | Py_XDECREF(args); |
| 447 | Py_XDECREF(encoder); |
Marc-André Lemburg | b2750b5 | 2008-06-06 12:18:17 +0000 | [diff] [blame] | 448 | return NULL; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | /* Decode an object (usually a Python string) using the given encoding |
| 452 | and return an equivalent object (e.g. an Unicode object). |
| 453 | |
| 454 | errors is passed to the decoder factory as argument if non-NULL. */ |
| 455 | |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 456 | static PyObject * |
| 457 | _PyCodec_DecodeInternal(PyObject *object, |
| 458 | PyObject *decoder, |
| 459 | const char *encoding, |
| 460 | const char *errors) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 461 | { |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 462 | PyObject *args = NULL, *result = NULL; |
| 463 | PyObject *v; |
| 464 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 465 | args = args_tuple(object, errors); |
| 466 | if (args == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 467 | goto onError; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 468 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 469 | result = PyEval_CallObject(decoder,args); |
Nick Coghlan | c4c2580 | 2013-11-15 21:47:37 +1000 | [diff] [blame] | 470 | if (result == NULL) { |
| 471 | wrap_codec_error("decoding", encoding); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 472 | goto onError; |
Nick Coghlan | c4c2580 | 2013-11-15 21:47:37 +1000 | [diff] [blame] | 473 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 474 | if (!PyTuple_Check(result) || |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 475 | PyTuple_GET_SIZE(result) != 2) { |
| 476 | PyErr_SetString(PyExc_TypeError, |
| 477 | "decoder must return a tuple (object,integer)"); |
| 478 | goto onError; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 479 | } |
| 480 | v = PyTuple_GET_ITEM(result,0); |
| 481 | Py_INCREF(v); |
| 482 | /* We don't check or use the second (integer) entry. */ |
| 483 | |
| 484 | Py_DECREF(args); |
| 485 | Py_DECREF(decoder); |
| 486 | Py_DECREF(result); |
| 487 | return v; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 488 | |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 489 | onError: |
| 490 | Py_XDECREF(args); |
| 491 | Py_XDECREF(decoder); |
| 492 | Py_XDECREF(result); |
| 493 | return NULL; |
| 494 | } |
| 495 | |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 496 | /* Generic encoding/decoding API */ |
| 497 | PyObject *PyCodec_Encode(PyObject *object, |
| 498 | const char *encoding, |
| 499 | const char *errors) |
| 500 | { |
| 501 | PyObject *encoder; |
| 502 | |
| 503 | encoder = PyCodec_Encoder(encoding); |
| 504 | if (encoder == NULL) |
| 505 | return NULL; |
| 506 | |
| 507 | return _PyCodec_EncodeInternal(object, encoder, encoding, errors); |
| 508 | } |
| 509 | |
| 510 | PyObject *PyCodec_Decode(PyObject *object, |
| 511 | const char *encoding, |
| 512 | const char *errors) |
| 513 | { |
| 514 | PyObject *decoder; |
| 515 | |
| 516 | decoder = PyCodec_Decoder(encoding); |
| 517 | if (decoder == NULL) |
| 518 | return NULL; |
| 519 | |
| 520 | return _PyCodec_DecodeInternal(object, decoder, encoding, errors); |
| 521 | } |
| 522 | |
| 523 | /* Text encoding/decoding API */ |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 524 | PyObject * _PyCodec_LookupTextEncoding(const char *encoding, |
| 525 | const char *alternate_command) |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 526 | { |
| 527 | _Py_IDENTIFIER(_is_text_encoding); |
| 528 | PyObject *codec; |
| 529 | PyObject *attr; |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 530 | int is_text_codec; |
| 531 | |
| 532 | codec = _PyCodec_Lookup(encoding); |
| 533 | if (codec == NULL) |
| 534 | return NULL; |
| 535 | |
| 536 | /* Backwards compatibility: assume any raw tuple describes a text |
| 537 | * encoding, and the same for anything lacking the private |
| 538 | * attribute. |
| 539 | */ |
| 540 | if (!PyTuple_CheckExact(codec)) { |
| 541 | attr = _PyObject_GetAttrId(codec, &PyId__is_text_encoding); |
| 542 | if (attr == NULL) { |
| 543 | if (PyErr_ExceptionMatches(PyExc_AttributeError)) { |
| 544 | PyErr_Clear(); |
| 545 | } else { |
| 546 | Py_DECREF(codec); |
| 547 | return NULL; |
| 548 | } |
| 549 | } else { |
| 550 | is_text_codec = PyObject_IsTrue(attr); |
| 551 | Py_DECREF(attr); |
| 552 | if (!is_text_codec) { |
| 553 | Py_DECREF(codec); |
| 554 | PyErr_Format(PyExc_LookupError, |
| 555 | "'%.400s' is not a text encoding; " |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 556 | "use %s to handle arbitrary codecs", |
| 557 | encoding, alternate_command); |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 558 | return NULL; |
| 559 | } |
| 560 | } |
| 561 | } |
| 562 | |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 563 | /* This appears to be a valid text encoding */ |
| 564 | return codec; |
| 565 | } |
| 566 | |
| 567 | |
| 568 | static |
| 569 | PyObject *codec_getitem_checked(const char *encoding, |
| 570 | const char *alternate_command, |
| 571 | int index) |
| 572 | { |
| 573 | PyObject *codec; |
| 574 | PyObject *v; |
| 575 | |
| 576 | codec = _PyCodec_LookupTextEncoding(encoding, alternate_command); |
| 577 | if (codec == NULL) |
| 578 | return NULL; |
| 579 | |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 580 | v = PyTuple_GET_ITEM(codec, index); |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 581 | Py_INCREF(v); |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 582 | Py_DECREF(codec); |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 583 | return v; |
| 584 | } |
| 585 | |
| 586 | static PyObject * _PyCodec_TextEncoder(const char *encoding) |
| 587 | { |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 588 | return codec_getitem_checked(encoding, "codecs.encode()", 0); |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 589 | } |
| 590 | |
| 591 | static PyObject * _PyCodec_TextDecoder(const char *encoding) |
| 592 | { |
Nick Coghlan | a9b1524 | 2014-02-04 22:11:18 +1000 | [diff] [blame] | 593 | return codec_getitem_checked(encoding, "codecs.decode()", 1); |
Nick Coghlan | c72e4e6 | 2013-11-22 22:39:36 +1000 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | PyObject *_PyCodec_EncodeText(PyObject *object, |
| 597 | const char *encoding, |
| 598 | const char *errors) |
| 599 | { |
| 600 | PyObject *encoder; |
| 601 | |
| 602 | encoder = _PyCodec_TextEncoder(encoding); |
| 603 | if (encoder == NULL) |
| 604 | return NULL; |
| 605 | |
| 606 | return _PyCodec_EncodeInternal(object, encoder, encoding, errors); |
| 607 | } |
| 608 | |
| 609 | PyObject *_PyCodec_DecodeText(PyObject *object, |
| 610 | const char *encoding, |
| 611 | const char *errors) |
| 612 | { |
| 613 | PyObject *decoder; |
| 614 | |
| 615 | decoder = _PyCodec_TextDecoder(encoding); |
| 616 | if (decoder == NULL) |
| 617 | return NULL; |
| 618 | |
| 619 | return _PyCodec_DecodeInternal(object, decoder, encoding, errors); |
| 620 | } |
| 621 | |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 622 | /* Register the error handling callback function error under the name |
| 623 | name. This function will be called by the codec when it encounters |
| 624 | an unencodable characters/undecodable bytes and doesn't know the |
| 625 | callback name, when name is specified as the error parameter |
| 626 | in the call to the encode/decode function. |
| 627 | Return 0 on success, -1 on error */ |
| 628 | int PyCodec_RegisterError(const char *name, PyObject *error) |
| 629 | { |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 630 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 631 | if (interp->codec_search_path == NULL && _PyCodecRegistry_Init()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 632 | return -1; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 633 | if (!PyCallable_Check(error)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 634 | PyErr_SetString(PyExc_TypeError, "handler must be callable"); |
| 635 | return -1; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 636 | } |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 637 | return PyDict_SetItemString(interp->codec_error_registry, |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 638 | name, error); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 639 | } |
| 640 | |
| 641 | /* Lookup the error handling callback function registered under the |
| 642 | name error. As a special case NULL can be passed, in which case |
| 643 | the error handling callback for strict encoding will be returned. */ |
| 644 | PyObject *PyCodec_LookupError(const char *name) |
| 645 | { |
| 646 | PyObject *handler = NULL; |
| 647 | |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 648 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 649 | if (interp->codec_search_path == NULL && _PyCodecRegistry_Init()) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 650 | return NULL; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 651 | |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 652 | if (name==NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 653 | name = "strict"; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 654 | handler = PyDict_GetItemString(interp->codec_error_registry, name); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 655 | if (!handler) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 656 | PyErr_Format(PyExc_LookupError, "unknown error handler name '%.400s'", name); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 657 | else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 658 | Py_INCREF(handler); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 659 | return handler; |
| 660 | } |
| 661 | |
| 662 | static void wrong_exception_type(PyObject *exc) |
| 663 | { |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 664 | _Py_IDENTIFIER(__class__); |
| 665 | _Py_IDENTIFIER(__name__); |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 666 | PyObject *type = _PyObject_GetAttrId(exc, &PyId___class__); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 667 | if (type != NULL) { |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 668 | PyObject *name = _PyObject_GetAttrId(type, &PyId___name__); |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 669 | Py_DECREF(type); |
| 670 | if (name != NULL) { |
| 671 | PyErr_Format(PyExc_TypeError, |
| 672 | "don't know how to handle %S in error callback", name); |
| 673 | Py_DECREF(name); |
| 674 | } |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 675 | } |
| 676 | } |
| 677 | |
| 678 | PyObject *PyCodec_StrictErrors(PyObject *exc) |
| 679 | { |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 680 | if (PyExceptionInstance_Check(exc)) |
| 681 | PyErr_SetObject(PyExceptionInstance_Class(exc), exc); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 682 | else |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 683 | PyErr_SetString(PyExc_TypeError, "codec must pass exception instance"); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 684 | return NULL; |
| 685 | } |
| 686 | |
| 687 | |
| 688 | PyObject *PyCodec_IgnoreErrors(PyObject *exc) |
| 689 | { |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 690 | Py_ssize_t end; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 691 | if (PyObject_IsInstance(exc, PyExc_UnicodeEncodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 692 | if (PyUnicodeEncodeError_GetEnd(exc, &end)) |
| 693 | return NULL; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 694 | } |
| 695 | else if (PyObject_IsInstance(exc, PyExc_UnicodeDecodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 696 | if (PyUnicodeDecodeError_GetEnd(exc, &end)) |
| 697 | return NULL; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 698 | } |
| 699 | else if (PyObject_IsInstance(exc, PyExc_UnicodeTranslateError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 700 | if (PyUnicodeTranslateError_GetEnd(exc, &end)) |
| 701 | return NULL; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 702 | } |
| 703 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 704 | wrong_exception_type(exc); |
| 705 | return NULL; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 706 | } |
Victor Stinner | ee45009 | 2011-12-01 02:52:11 +0100 | [diff] [blame] | 707 | return Py_BuildValue("(Nn)", PyUnicode_New(0, 0), end); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 708 | } |
| 709 | |
| 710 | |
| 711 | PyObject *PyCodec_ReplaceErrors(PyObject *exc) |
| 712 | { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 713 | Py_ssize_t start, end, i, len; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 714 | |
| 715 | if (PyObject_IsInstance(exc, PyExc_UnicodeEncodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 716 | PyObject *res; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 717 | int kind; |
| 718 | void *data; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 719 | if (PyUnicodeEncodeError_GetStart(exc, &start)) |
| 720 | return NULL; |
| 721 | if (PyUnicodeEncodeError_GetEnd(exc, &end)) |
| 722 | return NULL; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 723 | len = end - start; |
| 724 | res = PyUnicode_New(len, '?'); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 725 | if (res == NULL) |
| 726 | return NULL; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 727 | kind = PyUnicode_KIND(res); |
| 728 | data = PyUnicode_DATA(res); |
| 729 | for (i = 0; i < len; ++i) |
| 730 | PyUnicode_WRITE(kind, data, i, '?'); |
Victor Stinner | 8f82506 | 2012-04-27 13:55:39 +0200 | [diff] [blame] | 731 | assert(_PyUnicode_CheckConsistency(res, 1)); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 732 | return Py_BuildValue("(Nn)", res, end); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 733 | } |
| 734 | else if (PyObject_IsInstance(exc, PyExc_UnicodeDecodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 735 | if (PyUnicodeDecodeError_GetEnd(exc, &end)) |
| 736 | return NULL; |
Victor Stinner | 1a15aba | 2011-10-02 19:00:15 +0200 | [diff] [blame] | 737 | return Py_BuildValue("(Cn)", |
| 738 | (int)Py_UNICODE_REPLACEMENT_CHARACTER, |
| 739 | end); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 740 | } |
| 741 | else if (PyObject_IsInstance(exc, PyExc_UnicodeTranslateError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 742 | PyObject *res; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 743 | int kind; |
| 744 | void *data; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 745 | if (PyUnicodeTranslateError_GetStart(exc, &start)) |
| 746 | return NULL; |
| 747 | if (PyUnicodeTranslateError_GetEnd(exc, &end)) |
| 748 | return NULL; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 749 | len = end - start; |
| 750 | res = PyUnicode_New(len, Py_UNICODE_REPLACEMENT_CHARACTER); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 751 | if (res == NULL) |
| 752 | return NULL; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 753 | kind = PyUnicode_KIND(res); |
| 754 | data = PyUnicode_DATA(res); |
| 755 | for (i=0; i < len; i++) |
| 756 | PyUnicode_WRITE(kind, data, i, Py_UNICODE_REPLACEMENT_CHARACTER); |
Victor Stinner | 8f82506 | 2012-04-27 13:55:39 +0200 | [diff] [blame] | 757 | assert(_PyUnicode_CheckConsistency(res, 1)); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 758 | return Py_BuildValue("(Nn)", res, end); |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 759 | } |
| 760 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 761 | wrong_exception_type(exc); |
| 762 | return NULL; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 763 | } |
| 764 | } |
| 765 | |
| 766 | PyObject *PyCodec_XMLCharRefReplaceErrors(PyObject *exc) |
| 767 | { |
| 768 | if (PyObject_IsInstance(exc, PyExc_UnicodeEncodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 769 | PyObject *restuple; |
| 770 | PyObject *object; |
Victor Stinner | b31f1bc | 2011-11-04 21:29:10 +0100 | [diff] [blame] | 771 | Py_ssize_t i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 772 | Py_ssize_t start; |
| 773 | Py_ssize_t end; |
| 774 | PyObject *res; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 775 | unsigned char *outp; |
Serhiy Storchaka | 2e37409 | 2014-10-04 14:15:49 +0300 | [diff] [blame] | 776 | Py_ssize_t ressize; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 777 | Py_UCS4 ch; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 778 | if (PyUnicodeEncodeError_GetStart(exc, &start)) |
| 779 | return NULL; |
| 780 | if (PyUnicodeEncodeError_GetEnd(exc, &end)) |
| 781 | return NULL; |
| 782 | if (!(object = PyUnicodeEncodeError_GetObject(exc))) |
| 783 | return NULL; |
Serhiy Storchaka | 2e37409 | 2014-10-04 14:15:49 +0300 | [diff] [blame] | 784 | if (end - start > PY_SSIZE_T_MAX / (2+7+1)) |
| 785 | end = start + PY_SSIZE_T_MAX / (2+7+1); |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 786 | for (i = start, ressize = 0; i < end; ++i) { |
| 787 | /* object is guaranteed to be "ready" */ |
| 788 | ch = PyUnicode_READ_CHAR(object, i); |
| 789 | if (ch<10) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 790 | ressize += 2+1+1; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 791 | else if (ch<100) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 792 | ressize += 2+2+1; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 793 | else if (ch<1000) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 794 | ressize += 2+3+1; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 795 | else if (ch<10000) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 796 | ressize += 2+4+1; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 797 | else if (ch<100000) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 798 | ressize += 2+5+1; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 799 | else if (ch<1000000) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 800 | ressize += 2+6+1; |
| 801 | else |
| 802 | ressize += 2+7+1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 803 | } |
| 804 | /* allocate replacement */ |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 805 | res = PyUnicode_New(ressize, 127); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 806 | if (res == NULL) { |
| 807 | Py_DECREF(object); |
| 808 | return NULL; |
| 809 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 810 | outp = PyUnicode_1BYTE_DATA(res); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 811 | /* generate replacement */ |
Victor Stinner | b31f1bc | 2011-11-04 21:29:10 +0100 | [diff] [blame] | 812 | for (i = start; i < end; ++i) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 813 | int digits; |
| 814 | int base; |
Martin v. Löwis | 8ba7930 | 2011-11-04 12:26:49 +0100 | [diff] [blame] | 815 | ch = PyUnicode_READ_CHAR(object, i); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 816 | *outp++ = '&'; |
| 817 | *outp++ = '#'; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 818 | if (ch<10) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 819 | digits = 1; |
| 820 | base = 1; |
| 821 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 822 | else if (ch<100) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 823 | digits = 2; |
| 824 | base = 10; |
| 825 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 826 | else if (ch<1000) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 827 | digits = 3; |
| 828 | base = 100; |
| 829 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 830 | else if (ch<10000) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 831 | digits = 4; |
| 832 | base = 1000; |
| 833 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 834 | else if (ch<100000) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 835 | digits = 5; |
| 836 | base = 10000; |
| 837 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 838 | else if (ch<1000000) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 839 | digits = 6; |
| 840 | base = 100000; |
| 841 | } |
| 842 | else { |
| 843 | digits = 7; |
| 844 | base = 1000000; |
| 845 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 846 | while (digits-->0) { |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 847 | *outp++ = '0' + ch/base; |
| 848 | ch %= base; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 849 | base /= 10; |
| 850 | } |
| 851 | *outp++ = ';'; |
| 852 | } |
Victor Stinner | 8f82506 | 2012-04-27 13:55:39 +0200 | [diff] [blame] | 853 | assert(_PyUnicode_CheckConsistency(res, 1)); |
| 854 | restuple = Py_BuildValue("(Nn)", res, end); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 855 | Py_DECREF(object); |
| 856 | return restuple; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 857 | } |
| 858 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 859 | wrong_exception_type(exc); |
| 860 | return NULL; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 861 | } |
| 862 | } |
| 863 | |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 864 | PyObject *PyCodec_BackslashReplaceErrors(PyObject *exc) |
| 865 | { |
| 866 | if (PyObject_IsInstance(exc, PyExc_UnicodeEncodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 867 | PyObject *restuple; |
| 868 | PyObject *object; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 869 | Py_ssize_t i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 870 | Py_ssize_t start; |
| 871 | Py_ssize_t end; |
| 872 | PyObject *res; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 873 | unsigned char *outp; |
Serhiy Storchaka | 2e37409 | 2014-10-04 14:15:49 +0300 | [diff] [blame] | 874 | Py_ssize_t ressize; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 875 | Py_UCS4 c; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 876 | if (PyUnicodeEncodeError_GetStart(exc, &start)) |
| 877 | return NULL; |
| 878 | if (PyUnicodeEncodeError_GetEnd(exc, &end)) |
| 879 | return NULL; |
| 880 | if (!(object = PyUnicodeEncodeError_GetObject(exc))) |
| 881 | return NULL; |
Serhiy Storchaka | 2e37409 | 2014-10-04 14:15:49 +0300 | [diff] [blame] | 882 | if (end - start > PY_SSIZE_T_MAX / (1+1+8)) |
| 883 | end = start + PY_SSIZE_T_MAX / (1+1+8); |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 884 | for (i = start, ressize = 0; i < end; ++i) { |
| 885 | /* object is guaranteed to be "ready" */ |
| 886 | c = PyUnicode_READ_CHAR(object, i); |
| 887 | if (c >= 0x10000) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 888 | ressize += 1+1+8; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 889 | } |
| 890 | else if (c >= 0x100) { |
| 891 | ressize += 1+1+4; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 892 | } |
| 893 | else |
| 894 | ressize += 1+1+2; |
| 895 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 896 | res = PyUnicode_New(ressize, 127); |
Serhiy Storchaka | 8aa8c47 | 2014-09-23 19:59:09 +0300 | [diff] [blame] | 897 | if (res == NULL) { |
| 898 | Py_DECREF(object); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 899 | return NULL; |
Serhiy Storchaka | 8aa8c47 | 2014-09-23 19:59:09 +0300 | [diff] [blame] | 900 | } |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 901 | for (i = start, outp = PyUnicode_1BYTE_DATA(res); |
| 902 | i < end; ++i) { |
| 903 | c = PyUnicode_READ_CHAR(object, i); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 904 | *outp++ = '\\'; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 905 | if (c >= 0x00010000) { |
| 906 | *outp++ = 'U'; |
Victor Stinner | f5cff56 | 2011-10-14 02:13:11 +0200 | [diff] [blame] | 907 | *outp++ = Py_hexdigits[(c>>28)&0xf]; |
| 908 | *outp++ = Py_hexdigits[(c>>24)&0xf]; |
| 909 | *outp++ = Py_hexdigits[(c>>20)&0xf]; |
| 910 | *outp++ = Py_hexdigits[(c>>16)&0xf]; |
| 911 | *outp++ = Py_hexdigits[(c>>12)&0xf]; |
| 912 | *outp++ = Py_hexdigits[(c>>8)&0xf]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 913 | } |
Antoine Pitrou | e4a1892 | 2010-09-09 20:30:23 +0000 | [diff] [blame] | 914 | else if (c >= 0x100) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 915 | *outp++ = 'u'; |
Victor Stinner | f5cff56 | 2011-10-14 02:13:11 +0200 | [diff] [blame] | 916 | *outp++ = Py_hexdigits[(c>>12)&0xf]; |
| 917 | *outp++ = Py_hexdigits[(c>>8)&0xf]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 918 | } |
| 919 | else |
| 920 | *outp++ = 'x'; |
Victor Stinner | f5cff56 | 2011-10-14 02:13:11 +0200 | [diff] [blame] | 921 | *outp++ = Py_hexdigits[(c>>4)&0xf]; |
| 922 | *outp++ = Py_hexdigits[c&0xf]; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 923 | } |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 924 | |
Victor Stinner | 8f82506 | 2012-04-27 13:55:39 +0200 | [diff] [blame] | 925 | assert(_PyUnicode_CheckConsistency(res, 1)); |
| 926 | restuple = Py_BuildValue("(Nn)", res, end); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 927 | Py_DECREF(object); |
| 928 | return restuple; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 929 | } |
| 930 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 931 | wrong_exception_type(exc); |
| 932 | return NULL; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 933 | } |
| 934 | } |
| 935 | |
Serhiy Storchaka | 88d8fb6 | 2014-05-15 14:37:42 +0300 | [diff] [blame] | 936 | #define ENC_UNKNOWN -1 |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 937 | #define ENC_UTF8 0 |
| 938 | #define ENC_UTF16BE 1 |
| 939 | #define ENC_UTF16LE 2 |
| 940 | #define ENC_UTF32BE 3 |
| 941 | #define ENC_UTF32LE 4 |
| 942 | |
| 943 | static int |
| 944 | get_standard_encoding(const char *encoding, int *bytelength) |
| 945 | { |
| 946 | if (Py_TOLOWER(encoding[0]) == 'u' && |
| 947 | Py_TOLOWER(encoding[1]) == 't' && |
| 948 | Py_TOLOWER(encoding[2]) == 'f') { |
| 949 | encoding += 3; |
| 950 | if (*encoding == '-' || *encoding == '_' ) |
| 951 | encoding++; |
Serhiy Storchaka | 88d8fb6 | 2014-05-15 14:37:42 +0300 | [diff] [blame] | 952 | if (encoding[0] == '8' && encoding[1] == '\0') { |
| 953 | *bytelength = 3; |
| 954 | return ENC_UTF8; |
| 955 | } |
| 956 | else if (encoding[0] == '1' && encoding[1] == '6') { |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 957 | encoding += 2; |
| 958 | *bytelength = 2; |
| 959 | if (*encoding == '\0') { |
| 960 | #ifdef WORDS_BIGENDIAN |
| 961 | return ENC_UTF16BE; |
| 962 | #else |
| 963 | return ENC_UTF16LE; |
| 964 | #endif |
| 965 | } |
| 966 | if (*encoding == '-' || *encoding == '_' ) |
| 967 | encoding++; |
| 968 | if (Py_TOLOWER(encoding[1]) == 'e' && encoding[2] == '\0') { |
| 969 | if (Py_TOLOWER(encoding[0]) == 'b') |
| 970 | return ENC_UTF16BE; |
| 971 | if (Py_TOLOWER(encoding[0]) == 'l') |
| 972 | return ENC_UTF16LE; |
| 973 | } |
| 974 | } |
| 975 | else if (encoding[0] == '3' && encoding[1] == '2') { |
| 976 | encoding += 2; |
| 977 | *bytelength = 4; |
| 978 | if (*encoding == '\0') { |
| 979 | #ifdef WORDS_BIGENDIAN |
| 980 | return ENC_UTF32BE; |
| 981 | #else |
| 982 | return ENC_UTF32LE; |
| 983 | #endif |
| 984 | } |
| 985 | if (*encoding == '-' || *encoding == '_' ) |
| 986 | encoding++; |
| 987 | if (Py_TOLOWER(encoding[1]) == 'e' && encoding[2] == '\0') { |
| 988 | if (Py_TOLOWER(encoding[0]) == 'b') |
| 989 | return ENC_UTF32BE; |
| 990 | if (Py_TOLOWER(encoding[0]) == 'l') |
| 991 | return ENC_UTF32LE; |
| 992 | } |
| 993 | } |
| 994 | } |
Victor Stinner | 0d4e01c | 2014-05-16 14:46:20 +0200 | [diff] [blame] | 995 | else if (strcmp(encoding, "CP_UTF8") == 0) { |
| 996 | *bytelength = 3; |
| 997 | return ENC_UTF8; |
| 998 | } |
Serhiy Storchaka | 88d8fb6 | 2014-05-15 14:37:42 +0300 | [diff] [blame] | 999 | return ENC_UNKNOWN; |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1000 | } |
| 1001 | |
Martin v. Löwis | aef3fb0 | 2009-05-02 19:27:30 +0000 | [diff] [blame] | 1002 | /* This handler is declared static until someone demonstrates |
| 1003 | a need to call it directly. */ |
| 1004 | static PyObject * |
Martin v. Löwis | e0a2b72 | 2009-05-10 08:08:56 +0000 | [diff] [blame] | 1005 | PyCodec_SurrogatePassErrors(PyObject *exc) |
Martin v. Löwis | db12d45 | 2009-05-02 18:52:14 +0000 | [diff] [blame] | 1006 | { |
| 1007 | PyObject *restuple; |
| 1008 | PyObject *object; |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1009 | PyObject *encode; |
| 1010 | char *encoding; |
| 1011 | int code; |
| 1012 | int bytelength; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 1013 | Py_ssize_t i; |
Martin v. Löwis | db12d45 | 2009-05-02 18:52:14 +0000 | [diff] [blame] | 1014 | Py_ssize_t start; |
| 1015 | Py_ssize_t end; |
| 1016 | PyObject *res; |
| 1017 | if (PyObject_IsInstance(exc, PyExc_UnicodeEncodeError)) { |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1018 | unsigned char *outp; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1019 | if (PyUnicodeEncodeError_GetStart(exc, &start)) |
| 1020 | return NULL; |
| 1021 | if (PyUnicodeEncodeError_GetEnd(exc, &end)) |
| 1022 | return NULL; |
| 1023 | if (!(object = PyUnicodeEncodeError_GetObject(exc))) |
| 1024 | return NULL; |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1025 | if (!(encode = PyUnicodeEncodeError_GetEncoding(exc))) { |
| 1026 | Py_DECREF(object); |
| 1027 | return NULL; |
| 1028 | } |
| 1029 | if (!(encoding = PyUnicode_AsUTF8(encode))) { |
| 1030 | Py_DECREF(object); |
| 1031 | Py_DECREF(encode); |
| 1032 | return NULL; |
| 1033 | } |
| 1034 | code = get_standard_encoding(encoding, &bytelength); |
| 1035 | Py_DECREF(encode); |
Serhiy Storchaka | 88d8fb6 | 2014-05-15 14:37:42 +0300 | [diff] [blame] | 1036 | if (code == ENC_UNKNOWN) { |
| 1037 | /* Not supported, fail with original exception */ |
| 1038 | PyErr_SetObject(PyExceptionInstance_Class(exc), exc); |
| 1039 | Py_DECREF(object); |
| 1040 | return NULL; |
| 1041 | } |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1042 | |
Serhiy Storchaka | 2e37409 | 2014-10-04 14:15:49 +0300 | [diff] [blame] | 1043 | if (end - start > PY_SSIZE_T_MAX / bytelength) |
| 1044 | end = start + PY_SSIZE_T_MAX / bytelength; |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1045 | res = PyBytes_FromStringAndSize(NULL, bytelength*(end-start)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1046 | if (!res) { |
| 1047 | Py_DECREF(object); |
| 1048 | return NULL; |
| 1049 | } |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1050 | outp = (unsigned char*)PyBytes_AsString(res); |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 1051 | for (i = start; i < end; i++) { |
| 1052 | /* object is guaranteed to be "ready" */ |
| 1053 | Py_UCS4 ch = PyUnicode_READ_CHAR(object, i); |
Victor Stinner | 76df43d | 2012-10-30 01:42:39 +0100 | [diff] [blame] | 1054 | if (!Py_UNICODE_IS_SURROGATE(ch)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1055 | /* Not a surrogate, fail with original exception */ |
| 1056 | PyErr_SetObject(PyExceptionInstance_Class(exc), exc); |
| 1057 | Py_DECREF(res); |
| 1058 | Py_DECREF(object); |
| 1059 | return NULL; |
| 1060 | } |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1061 | switch (code) { |
| 1062 | case ENC_UTF8: |
| 1063 | *outp++ = (unsigned char)(0xe0 | (ch >> 12)); |
| 1064 | *outp++ = (unsigned char)(0x80 | ((ch >> 6) & 0x3f)); |
| 1065 | *outp++ = (unsigned char)(0x80 | (ch & 0x3f)); |
| 1066 | break; |
| 1067 | case ENC_UTF16LE: |
| 1068 | *outp++ = (unsigned char) ch; |
| 1069 | *outp++ = (unsigned char)(ch >> 8); |
| 1070 | break; |
| 1071 | case ENC_UTF16BE: |
| 1072 | *outp++ = (unsigned char)(ch >> 8); |
| 1073 | *outp++ = (unsigned char) ch; |
| 1074 | break; |
| 1075 | case ENC_UTF32LE: |
| 1076 | *outp++ = (unsigned char) ch; |
| 1077 | *outp++ = (unsigned char)(ch >> 8); |
| 1078 | *outp++ = (unsigned char)(ch >> 16); |
| 1079 | *outp++ = (unsigned char)(ch >> 24); |
| 1080 | break; |
| 1081 | case ENC_UTF32BE: |
| 1082 | *outp++ = (unsigned char)(ch >> 24); |
| 1083 | *outp++ = (unsigned char)(ch >> 16); |
| 1084 | *outp++ = (unsigned char)(ch >> 8); |
| 1085 | *outp++ = (unsigned char) ch; |
| 1086 | break; |
| 1087 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1088 | } |
| 1089 | restuple = Py_BuildValue("(On)", res, end); |
| 1090 | Py_DECREF(res); |
| 1091 | Py_DECREF(object); |
| 1092 | return restuple; |
Martin v. Löwis | db12d45 | 2009-05-02 18:52:14 +0000 | [diff] [blame] | 1093 | } |
| 1094 | else if (PyObject_IsInstance(exc, PyExc_UnicodeDecodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1095 | unsigned char *p; |
Victor Stinner | c06bb7a | 2011-11-04 21:36:35 +0100 | [diff] [blame] | 1096 | Py_UCS4 ch = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1097 | if (PyUnicodeDecodeError_GetStart(exc, &start)) |
| 1098 | return NULL; |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1099 | if (PyUnicodeDecodeError_GetEnd(exc, &end)) |
| 1100 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1101 | if (!(object = PyUnicodeDecodeError_GetObject(exc))) |
| 1102 | return NULL; |
| 1103 | if (!(p = (unsigned char*)PyBytes_AsString(object))) { |
| 1104 | Py_DECREF(object); |
| 1105 | return NULL; |
| 1106 | } |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1107 | if (!(encode = PyUnicodeDecodeError_GetEncoding(exc))) { |
| 1108 | Py_DECREF(object); |
| 1109 | return NULL; |
| 1110 | } |
| 1111 | if (!(encoding = PyUnicode_AsUTF8(encode))) { |
| 1112 | Py_DECREF(object); |
| 1113 | Py_DECREF(encode); |
| 1114 | return NULL; |
| 1115 | } |
| 1116 | code = get_standard_encoding(encoding, &bytelength); |
| 1117 | Py_DECREF(encode); |
Serhiy Storchaka | 88d8fb6 | 2014-05-15 14:37:42 +0300 | [diff] [blame] | 1118 | if (code == ENC_UNKNOWN) { |
| 1119 | /* Not supported, fail with original exception */ |
| 1120 | PyErr_SetObject(PyExceptionInstance_Class(exc), exc); |
| 1121 | Py_DECREF(object); |
| 1122 | return NULL; |
| 1123 | } |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1124 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1125 | /* Try decoding a single surrogate character. If |
| 1126 | there are more, let the codec call us again. */ |
| 1127 | p += start; |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1128 | if (PyBytes_GET_SIZE(object) - start >= bytelength) { |
| 1129 | switch (code) { |
| 1130 | case ENC_UTF8: |
| 1131 | if ((p[0] & 0xf0) == 0xe0 && |
| 1132 | (p[1] & 0xc0) == 0x80 && |
| 1133 | (p[2] & 0xc0) == 0x80) { |
| 1134 | /* it's a three-byte code */ |
| 1135 | ch = ((p[0] & 0x0f) << 12) + ((p[1] & 0x3f) << 6) + (p[2] & 0x3f); |
| 1136 | } |
| 1137 | break; |
| 1138 | case ENC_UTF16LE: |
| 1139 | ch = p[1] << 8 | p[0]; |
| 1140 | break; |
| 1141 | case ENC_UTF16BE: |
| 1142 | ch = p[0] << 8 | p[1]; |
| 1143 | break; |
| 1144 | case ENC_UTF32LE: |
| 1145 | ch = (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]; |
| 1146 | break; |
| 1147 | case ENC_UTF32BE: |
| 1148 | ch = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; |
| 1149 | break; |
| 1150 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1151 | } |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1152 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1153 | Py_DECREF(object); |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1154 | if (!Py_UNICODE_IS_SURROGATE(ch)) { |
| 1155 | /* it's not a surrogate - fail */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1156 | PyErr_SetObject(PyExceptionInstance_Class(exc), exc); |
| 1157 | return NULL; |
| 1158 | } |
Victor Stinner | c06bb7a | 2011-11-04 21:36:35 +0100 | [diff] [blame] | 1159 | res = PyUnicode_FromOrdinal(ch); |
| 1160 | if (res == NULL) |
| 1161 | return NULL; |
Serhiy Storchaka | 58cf607 | 2013-11-19 11:32:41 +0200 | [diff] [blame] | 1162 | return Py_BuildValue("(Nn)", res, start + bytelength); |
Martin v. Löwis | db12d45 | 2009-05-02 18:52:14 +0000 | [diff] [blame] | 1163 | } |
| 1164 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1165 | wrong_exception_type(exc); |
| 1166 | return NULL; |
Martin v. Löwis | db12d45 | 2009-05-02 18:52:14 +0000 | [diff] [blame] | 1167 | } |
| 1168 | } |
| 1169 | |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1170 | static PyObject * |
Martin v. Löwis | 43c5778 | 2009-05-10 08:15:24 +0000 | [diff] [blame] | 1171 | PyCodec_SurrogateEscapeErrors(PyObject *exc) |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1172 | { |
| 1173 | PyObject *restuple; |
| 1174 | PyObject *object; |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 1175 | Py_ssize_t i; |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1176 | Py_ssize_t start; |
| 1177 | Py_ssize_t end; |
| 1178 | PyObject *res; |
| 1179 | if (PyObject_IsInstance(exc, PyExc_UnicodeEncodeError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1180 | char *outp; |
| 1181 | if (PyUnicodeEncodeError_GetStart(exc, &start)) |
| 1182 | return NULL; |
| 1183 | if (PyUnicodeEncodeError_GetEnd(exc, &end)) |
| 1184 | return NULL; |
| 1185 | if (!(object = PyUnicodeEncodeError_GetObject(exc))) |
| 1186 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1187 | res = PyBytes_FromStringAndSize(NULL, end-start); |
| 1188 | if (!res) { |
| 1189 | Py_DECREF(object); |
| 1190 | return NULL; |
| 1191 | } |
| 1192 | outp = PyBytes_AsString(res); |
Martin v. Löwis | b09af03 | 2011-11-04 11:16:41 +0100 | [diff] [blame] | 1193 | for (i = start; i < end; i++) { |
| 1194 | /* object is guaranteed to be "ready" */ |
| 1195 | Py_UCS4 ch = PyUnicode_READ_CHAR(object, i); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1196 | if (ch < 0xdc80 || ch > 0xdcff) { |
| 1197 | /* Not a UTF-8b surrogate, fail with original exception */ |
| 1198 | PyErr_SetObject(PyExceptionInstance_Class(exc), exc); |
| 1199 | Py_DECREF(res); |
| 1200 | Py_DECREF(object); |
| 1201 | return NULL; |
| 1202 | } |
| 1203 | *outp++ = ch - 0xdc00; |
| 1204 | } |
| 1205 | restuple = Py_BuildValue("(On)", res, end); |
| 1206 | Py_DECREF(res); |
| 1207 | Py_DECREF(object); |
| 1208 | return restuple; |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1209 | } |
| 1210 | else if (PyObject_IsInstance(exc, PyExc_UnicodeDecodeError)) { |
Victor Stinner | c06bb7a | 2011-11-04 21:36:35 +0100 | [diff] [blame] | 1211 | PyObject *str; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1212 | unsigned char *p; |
Victor Stinner | c06bb7a | 2011-11-04 21:36:35 +0100 | [diff] [blame] | 1213 | Py_UCS2 ch[4]; /* decode up to 4 bad bytes. */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1214 | int consumed = 0; |
| 1215 | if (PyUnicodeDecodeError_GetStart(exc, &start)) |
| 1216 | return NULL; |
| 1217 | if (PyUnicodeDecodeError_GetEnd(exc, &end)) |
| 1218 | return NULL; |
| 1219 | if (!(object = PyUnicodeDecodeError_GetObject(exc))) |
| 1220 | return NULL; |
| 1221 | if (!(p = (unsigned char*)PyBytes_AsString(object))) { |
| 1222 | Py_DECREF(object); |
| 1223 | return NULL; |
| 1224 | } |
| 1225 | while (consumed < 4 && consumed < end-start) { |
| 1226 | /* Refuse to escape ASCII bytes. */ |
| 1227 | if (p[start+consumed] < 128) |
| 1228 | break; |
| 1229 | ch[consumed] = 0xdc00 + p[start+consumed]; |
| 1230 | consumed++; |
| 1231 | } |
| 1232 | Py_DECREF(object); |
| 1233 | if (!consumed) { |
| 1234 | /* codec complained about ASCII byte. */ |
| 1235 | PyErr_SetObject(PyExceptionInstance_Class(exc), exc); |
| 1236 | return NULL; |
| 1237 | } |
Victor Stinner | c06bb7a | 2011-11-04 21:36:35 +0100 | [diff] [blame] | 1238 | str = PyUnicode_FromKindAndData(PyUnicode_2BYTE_KIND, ch, consumed); |
| 1239 | if (str == NULL) |
| 1240 | return NULL; |
| 1241 | return Py_BuildValue("(Nn)", str, start+consumed); |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1242 | } |
| 1243 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1244 | wrong_exception_type(exc); |
| 1245 | return NULL; |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1246 | } |
| 1247 | } |
| 1248 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1249 | |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 1250 | static PyObject *strict_errors(PyObject *self, PyObject *exc) |
| 1251 | { |
| 1252 | return PyCodec_StrictErrors(exc); |
| 1253 | } |
| 1254 | |
| 1255 | |
| 1256 | static PyObject *ignore_errors(PyObject *self, PyObject *exc) |
| 1257 | { |
| 1258 | return PyCodec_IgnoreErrors(exc); |
| 1259 | } |
| 1260 | |
| 1261 | |
| 1262 | static PyObject *replace_errors(PyObject *self, PyObject *exc) |
| 1263 | { |
| 1264 | return PyCodec_ReplaceErrors(exc); |
| 1265 | } |
| 1266 | |
| 1267 | |
| 1268 | static PyObject *xmlcharrefreplace_errors(PyObject *self, PyObject *exc) |
| 1269 | { |
| 1270 | return PyCodec_XMLCharRefReplaceErrors(exc); |
| 1271 | } |
| 1272 | |
| 1273 | |
| 1274 | static PyObject *backslashreplace_errors(PyObject *self, PyObject *exc) |
| 1275 | { |
| 1276 | return PyCodec_BackslashReplaceErrors(exc); |
| 1277 | } |
| 1278 | |
Martin v. Löwis | e0a2b72 | 2009-05-10 08:08:56 +0000 | [diff] [blame] | 1279 | static PyObject *surrogatepass_errors(PyObject *self, PyObject *exc) |
Martin v. Löwis | db12d45 | 2009-05-02 18:52:14 +0000 | [diff] [blame] | 1280 | { |
Martin v. Löwis | e0a2b72 | 2009-05-10 08:08:56 +0000 | [diff] [blame] | 1281 | return PyCodec_SurrogatePassErrors(exc); |
Martin v. Löwis | db12d45 | 2009-05-02 18:52:14 +0000 | [diff] [blame] | 1282 | } |
| 1283 | |
Martin v. Löwis | 43c5778 | 2009-05-10 08:15:24 +0000 | [diff] [blame] | 1284 | static PyObject *surrogateescape_errors(PyObject *self, PyObject *exc) |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1285 | { |
Martin v. Löwis | 43c5778 | 2009-05-10 08:15:24 +0000 | [diff] [blame] | 1286 | return PyCodec_SurrogateEscapeErrors(exc); |
Martin v. Löwis | 011e842 | 2009-05-05 04:43:17 +0000 | [diff] [blame] | 1287 | } |
| 1288 | |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1289 | static int _PyCodecRegistry_Init(void) |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 1290 | { |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 1291 | static struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1292 | char *name; |
| 1293 | PyMethodDef def; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 1294 | } methods[] = |
| 1295 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1296 | { |
| 1297 | "strict", |
| 1298 | { |
| 1299 | "strict_errors", |
| 1300 | strict_errors, |
| 1301 | METH_O, |
| 1302 | PyDoc_STR("Implements the 'strict' error handling, which " |
| 1303 | "raises a UnicodeError on coding errors.") |
| 1304 | } |
| 1305 | }, |
| 1306 | { |
| 1307 | "ignore", |
| 1308 | { |
| 1309 | "ignore_errors", |
| 1310 | ignore_errors, |
| 1311 | METH_O, |
| 1312 | PyDoc_STR("Implements the 'ignore' error handling, which " |
| 1313 | "ignores malformed data and continues.") |
| 1314 | } |
| 1315 | }, |
| 1316 | { |
| 1317 | "replace", |
| 1318 | { |
| 1319 | "replace_errors", |
| 1320 | replace_errors, |
| 1321 | METH_O, |
| 1322 | PyDoc_STR("Implements the 'replace' error handling, which " |
| 1323 | "replaces malformed data with a replacement marker.") |
| 1324 | } |
| 1325 | }, |
| 1326 | { |
| 1327 | "xmlcharrefreplace", |
| 1328 | { |
| 1329 | "xmlcharrefreplace_errors", |
| 1330 | xmlcharrefreplace_errors, |
| 1331 | METH_O, |
| 1332 | PyDoc_STR("Implements the 'xmlcharrefreplace' error handling, " |
| 1333 | "which replaces an unencodable character with the " |
| 1334 | "appropriate XML character reference.") |
| 1335 | } |
| 1336 | }, |
| 1337 | { |
| 1338 | "backslashreplace", |
| 1339 | { |
| 1340 | "backslashreplace_errors", |
| 1341 | backslashreplace_errors, |
| 1342 | METH_O, |
| 1343 | PyDoc_STR("Implements the 'backslashreplace' error handling, " |
| 1344 | "which replaces an unencodable character with a " |
| 1345 | "backslashed escape sequence.") |
| 1346 | } |
| 1347 | }, |
| 1348 | { |
| 1349 | "surrogatepass", |
| 1350 | { |
| 1351 | "surrogatepass", |
| 1352 | surrogatepass_errors, |
| 1353 | METH_O |
| 1354 | } |
| 1355 | }, |
| 1356 | { |
| 1357 | "surrogateescape", |
| 1358 | { |
| 1359 | "surrogateescape", |
| 1360 | surrogateescape_errors, |
| 1361 | METH_O |
| 1362 | } |
| 1363 | } |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 1364 | }; |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 1365 | |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 1366 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1367 | PyObject *mod; |
Neal Norwitz | 739a8f8 | 2004-07-08 01:55:58 +0000 | [diff] [blame] | 1368 | unsigned i; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1369 | |
| 1370 | if (interp->codec_search_path != NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1371 | return 0; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1372 | |
| 1373 | interp->codec_search_path = PyList_New(0); |
| 1374 | interp->codec_search_cache = PyDict_New(); |
| 1375 | interp->codec_error_registry = PyDict_New(); |
| 1376 | |
| 1377 | if (interp->codec_error_registry) { |
Victor Stinner | 6394188 | 2011-09-29 00:42:28 +0200 | [diff] [blame] | 1378 | for (i = 0; i < Py_ARRAY_LENGTH(methods); ++i) { |
Andrew Svetlov | 3ba3a3e | 2012-12-25 13:32:35 +0200 | [diff] [blame] | 1379 | PyObject *func = PyCFunction_NewEx(&methods[i].def, NULL, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1380 | int res; |
| 1381 | if (!func) |
| 1382 | Py_FatalError("can't initialize codec error registry"); |
| 1383 | res = PyCodec_RegisterError(methods[i].name, func); |
| 1384 | Py_DECREF(func); |
| 1385 | if (res) |
| 1386 | Py_FatalError("can't initialize codec error registry"); |
| 1387 | } |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 1388 | } |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 1389 | |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1390 | if (interp->codec_search_path == NULL || |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1391 | interp->codec_search_cache == NULL || |
| 1392 | interp->codec_error_registry == NULL) |
| 1393 | Py_FatalError("can't initialize codec registry"); |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1394 | |
Christian Heimes | 819b8bf | 2008-01-03 23:05:47 +0000 | [diff] [blame] | 1395 | mod = PyImport_ImportModuleNoBlock("encodings"); |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1396 | if (mod == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1397 | return -1; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1398 | } |
| 1399 | Py_DECREF(mod); |
Christian Heimes | 6a27efa | 2008-10-30 21:48:26 +0000 | [diff] [blame] | 1400 | interp->codecs_initialized = 1; |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 1401 | return 0; |
Guido van Rossum | feee4b9 | 2000-03-10 22:57:27 +0000 | [diff] [blame] | 1402 | } |