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annotate Python/codecs.c @ 21100:0feac45ee662 legacy-trunk

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SF bug 486278 SystemError: Python/getargs.c:1086: bad. vgetargskeywords(): Now that this routine is checking for bad input (rather than dump core in some cases), some bad calls are raising errors that previously "worked". This patch makes the error strings more revealing, and changes the exceptions from SystemError to RuntimeError (under the theory that SystemError is more of a "can't happen!" assert- like thing, and so inappropriate for bad arguments to a public C API function).
author Tim Peters <tim.peters@gmail.com>
date Thu, 29 Nov 2001 03:26:37 +0000
parents 25ddd3dc7a7a
children 898304f6da23 416654e27d88
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1 /* ------------------------------------------------------------------------
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2
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3 Python Codec Registry and support functions
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4
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5 Written by Marc-Andre Lemburg (mal@lemburg.com).
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6
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7 Copyright (c) Corporation for National Research Initiatives.
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8
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9 ------------------------------------------------------------------------ */
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10
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11 #include "Python.h"
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12 #include <ctype.h>
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13
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14 /* --- Globals ------------------------------------------------------------ */
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15
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16 static PyObject *_PyCodec_SearchPath;
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17 static PyObject *_PyCodec_SearchCache;
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18
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19 /* Flag used for lazy import of the standard encodings package */
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20 static int import_encodings_called = 0;
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21
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22 /* --- Codec Registry ----------------------------------------------------- */
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23
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24 /* Import the standard encodings package which will register the first
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25 codec search function.
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26
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27 This is done in a lazy way so that the Unicode implementation does
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28 not downgrade startup time of scripts not needing it.
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29
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30 ImportErrors are silently ignored by this function. Only one try is
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31 made.
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32
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33 */
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34
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35 static
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36 int import_encodings(void)
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37 {
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38 PyObject *mod;
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39
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40 import_encodings_called = 1;
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41 mod = PyImport_ImportModule("encodings");
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42 if (mod == NULL) {
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43 if (PyErr_ExceptionMatches(PyExc_ImportError)) {
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44 /* Ignore ImportErrors... this is done so that
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45 distributions can disable the encodings package. Note
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46 that other errors are not masked, e.g. SystemErrors
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47 raised to inform the user of an error in the Python
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48 configuration are still reported back to the user. */
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49 PyErr_Clear();
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50 return 0;
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51 }
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52 return -1;
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53 }
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54 Py_DECREF(mod);
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55 return 0;
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56 }
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57
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58 int PyCodec_Register(PyObject *search_function)
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59 {
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60 if (!import_encodings_called) {
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61 if (import_encodings())
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62 goto onError;
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63 }
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64 if (search_function == NULL) {
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65 PyErr_BadArgument();
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66 goto onError;
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67 }
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68 if (!PyCallable_Check(search_function)) {
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69 PyErr_SetString(PyExc_TypeError,
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70 "argument must be callable");
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71 goto onError;
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72 }
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73 return PyList_Append(_PyCodec_SearchPath, search_function);
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74
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75 onError:
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76 return -1;
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77 }
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78
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79 /* Convert a string to a normalized Python string: all characters are
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80 converted to lower case, spaces are replaced with underscores. */
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81
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82 static
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83 PyObject *normalizestring(const char *string)
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84 {
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85 register size_t i;
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86 size_t len = strlen(string);
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87 char *p;
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88 PyObject *v;
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89
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90 if (len > INT_MAX) {
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91 PyErr_SetString(PyExc_OverflowError, "string is too large");
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92 return NULL;
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93 }
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94
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95 v = PyString_FromStringAndSize(NULL, (int)len);
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96 if (v == NULL)
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97 return NULL;
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98 p = PyString_AS_STRING(v);
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99 for (i = 0; i < len; i++) {
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100 register char ch = string[i];
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101 if (ch == ' ')
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102 ch = '-';
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103 else
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104 ch = tolower(ch);
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105 p[i] = ch;
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106 }
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107 return v;
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108 }
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109
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110 /* Lookup the given encoding and return a tuple providing the codec
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111 facilities.
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112
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113 The encoding string is looked up converted to all lower-case
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114 characters. This makes encodings looked up through this mechanism
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115 effectively case-insensitive.
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116
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117 If no codec is found, a LookupError is set and NULL returned.
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118
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119 As side effect, this tries to load the encodings package, if not
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120 yet done. This is part of the lazy load strategy for the encodings
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121 package.
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122
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123 */
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124
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125 PyObject *_PyCodec_Lookup(const char *encoding)
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126 {
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127 PyObject *result, *args = NULL, *v;
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128 int i, len;
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129
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130 if (encoding == NULL) {
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131 PyErr_BadArgument();
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132 goto onError;
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133 }
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diff changeset
134 if (_PyCodec_SearchCache == NULL ||
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
135 _PyCodec_SearchPath == NULL) {
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
136 PyErr_SetString(PyExc_SystemError,
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
137 "codec module not properly initialized");
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
138 goto onError;
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
139 }
12195
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
140 if (!import_encodings_called) {
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
141 if (import_encodings())
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
142 goto onError;
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
143 }
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
144
12248
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that
Guido van Rossum <guido@python.org>
parents: 12195
diff changeset
145 /* Convert the encoding to a normalized Python string: all
13620
5b727ab37092 Spelling fixes supplied by Rob W. W. Hooft. All these are fixes in either
Thomas Wouters <thomas@python.org>
parents: 13330
diff changeset
146 characters are converted to lower case, spaces and hyphens are
12248
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that
Guido van Rossum <guido@python.org>
parents: 12195
diff changeset
147 replaced with underscores. */
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that
Guido van Rossum <guido@python.org>
parents: 12195
diff changeset
148 v = normalizestring(encoding);
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
149 if (v == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
150 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
151 PyString_InternInPlace(&v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
152
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
153 /* First, try to lookup the name in the registry dictionary */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
154 result = PyDict_GetItem(_PyCodec_SearchCache, v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
155 if (result != NULL) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
156 Py_INCREF(result);
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
157 Py_DECREF(v);
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
158 return result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
159 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
160
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
161 /* Next, scan the search functions in order of registration */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
162 args = PyTuple_New(1);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
163 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
164 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
165 PyTuple_SET_ITEM(args,0,v);
12048
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
166
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
167 len = PyList_Size(_PyCodec_SearchPath);
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
168 if (len < 0)
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
169 goto onError;
12195
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
170 if (len == 0) {
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
171 PyErr_SetString(PyExc_LookupError,
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
172 "no codec search functions registered: "
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
173 "can't find encoding");
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
174 goto onError;
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
175 }
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
176
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
177 for (i = 0; i < len; i++) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
178 PyObject *func;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
179
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
180 func = PyList_GetItem(_PyCodec_SearchPath, i);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
181 if (func == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
182 goto onError;
12048
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
183 result = PyEval_CallObject(func, args);
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
184 if (result == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
185 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
186 if (result == Py_None) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
187 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
188 continue;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
189 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
190 if (!PyTuple_Check(result) || PyTuple_GET_SIZE(result) != 4) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
191 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
192 "codec search functions must return 4-tuples");
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
193 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
194 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
195 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
196 break;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
197 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
198 if (i == len) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
199 /* XXX Perhaps we should cache misses too ? */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
200 PyErr_SetString(PyExc_LookupError,
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
201 "unknown encoding");
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
202 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
203 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
204
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
205 /* Cache and return the result */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
206 PyDict_SetItem(_PyCodec_SearchCache, v, result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
207 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
208 return result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
209
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
210 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
211 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
212 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
213 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
214
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
215 static
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
216 PyObject *args_tuple(PyObject *object,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
217 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
218 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
219 PyObject *args;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
220
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
221 args = PyTuple_New(1 + (errors != NULL));
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
222 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
223 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
224 Py_INCREF(object);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
225 PyTuple_SET_ITEM(args,0,object);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 if (errors) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
227 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
228
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
229 v = PyString_FromString(errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
230 if (v == NULL) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
231 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
232 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
233 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
234 PyTuple_SET_ITEM(args, 1, v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
235 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
236 return args;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
237 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
238
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
239 /* Build a codec by calling factory(stream[,errors]) or just
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 factory(errors) depending on whether the given parameters are
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
241 non-NULL. */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
242
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
243 static
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
244 PyObject *build_stream_codec(PyObject *factory,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
245 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
246 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
247 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
248 PyObject *args, *codec;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
249
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
250 args = args_tuple(stream, errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
251 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
252 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
253
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
254 codec = PyEval_CallObject(factory, args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
256 return codec;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
258
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
259 /* Convenience APIs to query the Codec registry.
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
260
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
261 All APIs return a codec object with incremented refcount.
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
262
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
263 */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
264
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
265 PyObject *PyCodec_Encoder(const char *encoding)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
266 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
267 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
268 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
269
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
270 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
271 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
272 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
273 v = PyTuple_GET_ITEM(codecs,0);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
274 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
275 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
276
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
277 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
278 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
279 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
280
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
281 PyObject *PyCodec_Decoder(const char *encoding)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
282 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
283 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
284 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
285
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
286 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
288 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
289 v = PyTuple_GET_ITEM(codecs,1);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
290 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
291 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
292
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
293 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
294 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
295 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
296
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
297 PyObject *PyCodec_StreamReader(const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
298 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
299 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
300 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
301 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
302
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
303 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
304 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
305 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
306 return build_stream_codec(PyTuple_GET_ITEM(codecs,2),stream,errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
307
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
308 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
309 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
310 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
311
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
312 PyObject *PyCodec_StreamWriter(const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
313 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
314 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
315 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
316 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
317
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
318 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
319 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
320 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
321 return build_stream_codec(PyTuple_GET_ITEM(codecs,3),stream,errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
322
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
323 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
324 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
325 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
326
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
327 /* Encode an object (e.g. an Unicode object) using the given encoding
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
328 and return the resulting encoded object (usually a Python string).
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
329
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
330 errors is passed to the encoder factory as argument if non-NULL. */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
331
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
332 PyObject *PyCodec_Encode(PyObject *object,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
333 const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
334 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
335 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
336 PyObject *encoder = NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
337 PyObject *args = NULL, *result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
338 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
339
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
340 encoder = PyCodec_Encoder(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
341 if (encoder == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
342 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
343
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
344 args = args_tuple(object, errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
345 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
346 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
347
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
348 result = PyEval_CallObject(encoder,args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
349 if (result == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
350 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
351
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
352 if (!PyTuple_Check(result) ||
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
353 PyTuple_GET_SIZE(result) != 2) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
354 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
355 "encoder must return a tuple (object,integer)");
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
356 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
357 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
358 v = PyTuple_GET_ITEM(result,0);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
359 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
360 /* We don't check or use the second (integer) entry. */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
361
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
362 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
363 Py_DECREF(encoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
364 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
365 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
366
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
367 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
368 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
369 Py_XDECREF(encoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
370 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
371 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
372
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
373 /* Decode an object (usually a Python string) using the given encoding
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
374 and return an equivalent object (e.g. an Unicode object).
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
375
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
376 errors is passed to the decoder factory as argument if non-NULL. */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
377
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
378 PyObject *PyCodec_Decode(PyObject *object,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
379 const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
380 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
381 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
382 PyObject *decoder = NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
383 PyObject *args = NULL, *result = NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
384 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
385
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
386 decoder = PyCodec_Decoder(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
387 if (decoder == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
388 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
389
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
390 args = args_tuple(object, errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
391 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
392 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
393
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
394 result = PyEval_CallObject(decoder,args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
395 if (result == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
396 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
397 if (!PyTuple_Check(result) ||
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
398 PyTuple_GET_SIZE(result) != 2) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
399 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
400 "decoder must return a tuple (object,integer)");
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
401 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
402 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
403 v = PyTuple_GET_ITEM(result,0);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
404 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
405 /* We don't check or use the second (integer) entry. */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
406
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
407 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
408 Py_DECREF(decoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
409 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
410 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
411
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
412 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
413 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
414 Py_XDECREF(decoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
415 Py_XDECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
416 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
417 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
418
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13620
diff changeset
419 void _PyCodecRegistry_Init(void)
11972
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420 {
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421 if (_PyCodec_SearchPath == NULL)
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422 _PyCodec_SearchPath = PyList_New(0);
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423 if (_PyCodec_SearchCache == NULL)
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424 _PyCodec_SearchCache = PyDict_New();
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425 if (_PyCodec_SearchPath == NULL ||
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426 _PyCodec_SearchCache == NULL)
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427 Py_FatalError("can't initialize codec registry");
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428 }
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429
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430 void _PyCodecRegistry_Fini(void)
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431 {
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432 Py_XDECREF(_PyCodec_SearchPath);
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433 _PyCodec_SearchPath = NULL;
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434 Py_XDECREF(_PyCodec_SearchCache);
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435 _PyCodec_SearchCache = NULL;
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436 }