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annotate Python/codecs.c @ 12543:c8dbd5f70288 legacy-trunk

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Marc-Andre Lemburg: Changed all references to the MAGIC constant to use a global pyc_magic instead. This global is initially set to MAGIC, but can be changed by the _PyImport_Init() function to provide for special features implemented in the compiler which are settable using command line switches and affect the way PYC files are generated. Currently this change is only done for the -U flag.
author Guido van Rossum <guido@python.org>
date Mon, 01 May 2000 20:19:08 +0000
parents 70154e2e9c89
children 2a53f5dc0590
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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 (c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
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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()
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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 /* Register a new codec search function.
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59
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60 As side effect, this tries to load the encodings package, if not
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61 yet done, to make sure that it is always first in the list of
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62 search functions.
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63
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64 The search_function's refcount is incremented by this function. */
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65
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66 int PyCodec_Register(PyObject *search_function)
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67 {
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68 if (!import_encodings_called) {
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69 if (import_encodings())
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70 goto onError;
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71 }
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72 if (search_function == NULL) {
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73 PyErr_BadArgument();
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74 goto onError;
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75 }
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76 if (!PyCallable_Check(search_function)) {
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77 PyErr_SetString(PyExc_TypeError,
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78 "argument must be callable");
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79 goto onError;
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80 }
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81 return PyList_Append(_PyCodec_SearchPath, search_function);
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82
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83 onError:
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84 return -1;
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85 }
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86
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87 /* Convert a string to a normalized Python string: all characters are
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88 converted to lower case, spaces are replaced with underscores. */
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89
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90 static
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91 PyObject *normalizestring(const char *string)
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92 {
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93 register int i;
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94 int len = strlen(string);
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95 char *p;
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96 PyObject *v;
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97
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98 v = PyString_FromStringAndSize(NULL, 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 KeyError 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 (_PyCodec_SearchCache == NULL ||
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134 _PyCodec_SearchPath == NULL) {
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135 PyErr_SetString(PyExc_SystemError,
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Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
136 "codec module not properly initialized");
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
137 goto onError;
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
138 }
12195
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
139 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
140 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
141 goto onError;
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
142 }
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
143
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
144 /* Convert the encoding to a normalized Python string: all
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 characters are converted to lower case, spaces and hypens are
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
146 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
147 v = normalizestring(encoding);
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
148 if (v == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
149 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
150 PyString_InternInPlace(&v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
151
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
152 /* 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
153 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
154 if (result != NULL) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
155 Py_INCREF(result);
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
156 Py_DECREF(v);
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
157 return result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
158 }
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 /* 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
161 args = PyTuple_New(1);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
162 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
163 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
164 PyTuple_SET_ITEM(args,0,v);
12048
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
165
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
166 len = PyList_Size(_PyCodec_SearchPath);
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
167 if (len < 0)
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
168 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
169 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
170 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
171 "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
172 "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
173 goto onError;
bc861add5d71 Marc-Andre Lemburg: Error reporting in the codec registry and lookup
Guido van Rossum <guido@python.org>
parents: 12048
diff changeset
174 }
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
175
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
176 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
177 PyObject *func;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
178
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
179 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
180 if (func == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
181 goto onError;
12048
f87b56eebacc Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 12025
diff changeset
182 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
183 if (result == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
184 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
185 if (result == Py_None) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
186 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
187 continue;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
188 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
189 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
190 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
191 "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
192 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
193 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
194 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
195 break;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
196 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
197 if (i == len) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
198 /* 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
199 PyErr_SetString(PyExc_LookupError,
12025
7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
diff changeset
200 "unknown encoding");
11972
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
201 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
202 }
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 /* 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
205 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
206 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
207 return result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
208
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
209 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
210 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
211 return NULL;
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
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
214 static
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
215 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
216 const char *errors)
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 PyObject *args;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
219
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
220 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
221 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
222 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
223 Py_INCREF(object);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
224 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
225 if (errors) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
227
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
228 v = PyString_FromString(errors);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
229 if (v == NULL) {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
230 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
231 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
232 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
233 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
234 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
235 return args;
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
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
238 /* 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
239 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
240 non-NULL. */
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 static
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
243 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
244 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
245 const char *errors)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
246 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
247 PyObject *args, *codec;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
248
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
249 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
250 if (args == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
251 return NULL;
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 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
254 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 return codec;
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
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
258 /* 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
259
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
260 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
261
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 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
265 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
266 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
267 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
268
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
269 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
270 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
271 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
272 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
273 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
274 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
275
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
276 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
277 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
278 }
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 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
281 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
282 PyObject *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
283 PyObject *v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
284
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
285 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
286 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
288 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
289 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
290 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
291
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
292 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
293 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
294 }
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 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
297 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
298 const char *errors)
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 *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
301
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
302 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
303 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
304 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
305 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
306
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
307 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
308 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
309 }
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 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
312 PyObject *stream,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
313 const char *errors)
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 *codecs;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
316
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
317 codecs = _PyCodec_Lookup(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
318 if (codecs == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
319 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
320 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
321
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
322 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
323 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
324 }
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 /* 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
327 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
328
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
329 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
330
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
331 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
332 const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
333 const char *errors)
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 *encoder = NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
336 PyObject *args = NULL, *result;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
337 PyObject *v;
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 encoder = PyCodec_Encoder(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
340 if (encoder == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
341 goto onError;
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 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
344 if (args == 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 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
348 if (result == 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 if (!PyTuple_Check(result) ||
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
352 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
353 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
354 "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
355 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
356 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
357 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
358 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
359 /* 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
360
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
361 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
362 Py_DECREF(encoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
363 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
364 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
365
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
366 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
367 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
368 Py_XDECREF(encoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
369 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
370 }
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 /* 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
373 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
374
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
375 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
376
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
377 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
378 const char *encoding,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
379 const char *errors)
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 *decoder = NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
382 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
383 PyObject *v;
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 decoder = PyCodec_Decoder(encoding);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
386 if (decoder == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
387 goto onError;
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 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
390 if (args == 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 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
394 if (result == 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 if (!PyTuple_Check(result) ||
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
397 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
398 PyErr_SetString(PyExc_TypeError,
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
399 "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
400 goto onError;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
401 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
402 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
403 Py_INCREF(v);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
404 /* 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
405
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
406 Py_DECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
407 Py_DECREF(decoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
408 Py_DECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
409 return v;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
410
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
411 onError:
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
412 Py_XDECREF(args);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
413 Py_XDECREF(decoder);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
414 Py_XDECREF(result);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
415 return NULL;
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
416 }
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 void _PyCodecRegistry_Init()
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
419 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
420 if (_PyCodec_SearchPath == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
Guido van Rossum <guido@python.org>
parents:
diff changeset
421 _PyCodec_SearchPath = PyList_New(0);
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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422 if (_PyCodec_SearchCache == NULL)
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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423 _PyCodec_SearchCache = PyDict_New();
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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424 if (_PyCodec_SearchPath == NULL ||
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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425 _PyCodec_SearchCache == NULL)
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426 Py_FatalError("can't intialize codec registry");
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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427 }
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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428
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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429 void _PyCodecRegistry_Fini()
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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430 {
d0e06efb3165 Python Codec Registry and support functions, written by Marc-Andre
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431 Py_XDECREF(_PyCodec_SearchPath);
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7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
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432 _PyCodec_SearchPath = NULL;
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433 Py_XDECREF(_PyCodec_SearchCache);
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7994d9db7f4d On 17-Mar-2000, Marc-Andre Lemburg said:
Barry Warsaw <barry@python.org>
parents: 11972
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434 _PyCodec_SearchCache = NULL;
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435 }