Mercurial > cpython-lru_cache-weakref

annotate Python/codecs.c @ 13956:8e8a8df0fe73 legacy-trunk

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The list comp patch checked for the second child node of the 'listmaker' node, without checking if the node actually had more than one child. It can have only one node, though: '[' test ']'. This fixes it.
author Thomas Wouters <thomas@python.org>
date Sun, 13 Aug 2000 17:05:17 +0000
parents 254f8b7c4a83
children 25ddd3dc7a7a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 #ifdef HAVE_LIMITS_H
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14 #include <limits.h>
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15 #endif
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16
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17 /* --- Globals ------------------------------------------------------------ */
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18
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19 static PyObject *_PyCodec_SearchPath;
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20 static PyObject *_PyCodec_SearchCache;
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21
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22 /* Flag used for lazy import of the standard encodings package */
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23 static int import_encodings_called = 0;
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24
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25 /* --- Codec Registry ----------------------------------------------------- */
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26
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27 /* Import the standard encodings package which will register the first
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28 codec search function.
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29
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30 This is done in a lazy way so that the Unicode implementation does
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31 not downgrade startup time of scripts not needing it.
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32
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33 ImportErrors are silently ignored by this function. Only one try is
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34 made.
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35
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36 */
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37
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38 static
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39 int import_encodings(void)
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40 {
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41 PyObject *mod;
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42
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43 import_encodings_called = 1;
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44 mod = PyImport_ImportModule("encodings");
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45 if (mod == NULL) {
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46 if (PyErr_ExceptionMatches(PyExc_ImportError)) {
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47 /* Ignore ImportErrors... this is done so that
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48 distributions can disable the encodings package. Note
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49 that other errors are not masked, e.g. SystemErrors
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50 raised to inform the user of an error in the Python
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51 configuration are still reported back to the user. */
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52 PyErr_Clear();
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53 return 0;
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54 }
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55 return -1;
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56 }
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57 Py_DECREF(mod);
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58 return 0;
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59 }
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60
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61 int PyCodec_Register(PyObject *search_function)
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62 {
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63 if (!import_encodings_called) {
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64 if (import_encodings())
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65 goto onError;
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66 }
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67 if (search_function == NULL) {
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68 PyErr_BadArgument();
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69 goto onError;
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70 }
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71 if (!PyCallable_Check(search_function)) {
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72 PyErr_SetString(PyExc_TypeError,
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73 "argument must be callable");
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74 goto onError;
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75 }
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76 return PyList_Append(_PyCodec_SearchPath, search_function);
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77
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78 onError:
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79 return -1;
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80 }
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81
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82 /* Convert a string to a normalized Python string: all characters are
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83 converted to lower case, spaces are replaced with underscores. */
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84
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85 static
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86 PyObject *normalizestring(const char *string)
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87 {
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88 register size_t i;
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89 size_t len = strlen(string);
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90 char *p;
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91 PyObject *v;
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92
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93 if (len > INT_MAX) {
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94 PyErr_SetString(PyExc_OverflowError, "string is too large");
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95 return NULL;
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96 }
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97
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98 v = PyString_FromStringAndSize(NULL, (int)len);
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99 if (v == NULL)
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100 return NULL;
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101 p = PyString_AS_STRING(v);
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102 for (i = 0; i < len; i++) {
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103 register char ch = string[i];
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104 if (ch == ' ')
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105 ch = '-';
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106 else
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107 ch = tolower(ch);
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108 p[i] = ch;
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109 }
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110 return v;
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111 }
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112
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113 /* Lookup the given encoding and return a tuple providing the codec
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114 facilities.
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115
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116 The encoding string is looked up converted to all lower-case
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117 characters. This makes encodings looked up through this mechanism
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118 effectively case-insensitive.
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119
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120 If no codec is found, a LookupError is set and NULL returned.
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121
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122 As side effect, this tries to load the encodings package, if not
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123 yet done. This is part of the lazy load strategy for the encodings
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124 package.
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125
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126 */
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127
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128 PyObject *_PyCodec_Lookup(const char *encoding)
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129 {
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130 PyObject *result, *args = NULL, *v;
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131 int i, len;
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132
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133 if (encoding == NULL) {
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134 PyErr_BadArgument();
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135 goto onError;
2a53f5dc0590 M.-A. Lemburg <mal@lemburg.com>:
Fred Drake <fdrake@acm.org>
parents: 12248
diff changeset
136 }
12195
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
137 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
138 _PyCodec_SearchPath == NULL) {
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
139 PyErr_SetString(PyExc_SystemError,
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
140 "codec module not properly initialized");
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
141 goto onError;
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
142 }
12195
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
143 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
144 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
145 goto onError;
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
146 }
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
147
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
148 /* 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
149 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
150 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
151 v = normalizestring(encoding);
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
152 if (v == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
153 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
154 PyString_InternInPlace(&v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
155
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
156 /* 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
157 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
158 if (result != NULL) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
159 Py_INCREF(result);
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
160 Py_DECREF(v);
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
161 return result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
162 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
163
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
164 /* 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
165 args = PyTuple_New(1);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
166 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
167 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
168 PyTuple_SET_ITEM(args,0,v);
12048
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
169
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
170 len = PyList_Size(_PyCodec_SearchPath);
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
171 if (len < 0)
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
172 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
173 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
174 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
175 "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
176 "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
177 goto onError;
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
178 }
11972
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 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
181 PyObject *func;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
182
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
183 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
184 if (func == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
185 goto onError;
12048
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
186 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
187 if (result == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
188 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
189 if (result == Py_None) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
190 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
191 continue;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
192 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
193 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
194 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
195 "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
196 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
197 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
198 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
199 break;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
200 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
201 if (i == len) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
202 /* 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
203 PyErr_SetString(PyExc_LookupError,
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
204 "unknown encoding");
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
205 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
206 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
207
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
208 /* 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
209 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
210 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
211 return result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
212
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
213 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
214 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
215 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
216 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
217
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
218 static
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
219 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
220 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
221 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
222 PyObject *args;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
223
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
224 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
225 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
227 Py_INCREF(object);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
228 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
229 if (errors) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
230 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
231
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
232 v = PyString_FromString(errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
233 if (v == NULL) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
234 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
235 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
236 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
237 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
238 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
239 return args;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
241
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
242 /* 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
243 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
244 non-NULL. */
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
245
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
246 static
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
247 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
248 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
249 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
250 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
251 PyObject *args, *codec;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
252
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
253 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
254 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
256
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 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
258 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
259 return codec;
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
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
262 /* 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
263
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
264 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
265
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
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
268 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
269 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
270 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
271 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
272
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
273 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
274 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
275 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
276 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
277 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
278 return v;
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 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
281 return NULL;
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
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
284 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
285 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
286 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
288
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
289 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
290 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
291 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
292 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
293 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
294 return v;
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 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
297 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
298 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
299
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
300 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
301 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
302 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
303 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
304 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
305
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
306 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
307 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
308 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
309 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
310
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
311 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
312 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
313 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
314
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
315 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
316 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
317 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
318 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
319 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
320
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
321 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
322 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
323 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
324 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
325
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
326 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
327 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
328 }
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 /* 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
331 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
332
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
333 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
334
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
335 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
336 const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
337 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
338 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
339 PyObject *encoder = NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
340 PyObject *args = NULL, *result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
341 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
342
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
343 encoder = PyCodec_Encoder(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
344 if (encoder == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
345 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
346
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
347 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
348 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
349 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
350
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
351 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
352 if (result == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
353 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
354
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
355 if (!PyTuple_Check(result) ||
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
356 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
357 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
358 "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
359 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
360 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
361 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
362 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
363 /* 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
364
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
365 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
366 Py_DECREF(encoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
367 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
368 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
369
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
370 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
371 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
372 Py_XDECREF(encoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
373 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
374 }
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 /* 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
377 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
378
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
379 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
380
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
381 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
382 const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
383 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
384 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
385 PyObject *decoder = NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
386 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
387 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
388
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
389 decoder = PyCodec_Decoder(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
390 if (decoder == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
391 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
392
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
393 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
394 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
395 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
396
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
397 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
398 if (result == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
399 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
400 if (!PyTuple_Check(result) ||
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
401 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
402 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
403 "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
404 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
405 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
406 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
407 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
408 /* 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
409
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
410 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
411 Py_DECREF(decoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
412 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
413 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
414
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
415 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
416 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
417 Py_XDECREF(decoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
418 Py_XDECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
419 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
420 }
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421
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422 void _PyCodecRegistry_Init(void)
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423 {
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424 if (_PyCodec_SearchPath == NULL)
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425 _PyCodec_SearchPath = PyList_New(0);
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426 if (_PyCodec_SearchCache == NULL)
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427 _PyCodec_SearchCache = PyDict_New();
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428 if (_PyCodec_SearchPath == NULL ||
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429 _PyCodec_SearchCache == NULL)
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430 Py_FatalError("can't initialize codec registry");
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431 }
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432
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433 void _PyCodecRegistry_Fini(void)
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434 {
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435 Py_XDECREF(_PyCodec_SearchPath);
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7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
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436 _PyCodec_SearchPath = NULL;
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437 Py_XDECREF(_PyCodec_SearchCache);
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7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
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438 _PyCodec_SearchCache = NULL;
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439 }