Mercurial > cpython-lru_cache-weakref

annotate Include/stringobject.h @ 24042:63fbbed10714 legacy-trunk

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Simplify HTTPSConnection constructor. See discussion in SF bug 458463.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Fri, 28 Jun 2002 23:38:14 +0000
parents 220b98f06415
children c1eb668525e1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /* String object interface */
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4 #ifndef Py_STRINGOBJECT_H
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5 #define Py_STRINGOBJECT_H
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6 #ifdef __cplusplus
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7 extern "C" {
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8 #endif
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9
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10 #include <stdarg.h>
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12 /*
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13 Type PyStringObject represents a character string. An extra zero byte is
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14 reserved at the end to ensure it is zero-terminated, but a size is
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15 present so strings with null bytes in them can be represented. This
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16 is an immutable object type.
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17
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18 There are functions to create new string objects, to test
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19 an object for string-ness, and to get the
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20 string value. The latter function returns a null pointer
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21 if the object is not of the proper type.
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22 There is a variant that takes an explicit size as well as a
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23 variant that assumes a zero-terminated string. Note that none of the
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24 functions should be applied to nil objects.
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25 */
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26
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27 /* Caching the hash (ob_shash) saves recalculation of a string's hash value.
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28 Interning strings (ob_sinterned) tries to ensure that only one string
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29 object with a given value exists, so equality tests can be one pointer
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30 comparison. This is generally restricted to strings that "look like"
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31 Python identifiers, although the intern() builtin can be used to force
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32 interning of any string.
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33 Together, these sped the interpreter by up to 20%. */
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34
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35 typedef struct {
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36 PyObject_VAR_HEAD
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37 long ob_shash;
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38 PyObject *ob_sinterned;
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39 char ob_sval[1];
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40 } PyStringObject;
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41
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42 extern DL_IMPORT(PyTypeObject) PyBaseString_Type;
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43 extern DL_IMPORT(PyTypeObject) PyString_Type;
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44
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45 #define PyString_Check(op) PyObject_TypeCheck(op, &PyString_Type)
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46 #define PyString_CheckExact(op) ((op)->ob_type == &PyString_Type)
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48 extern DL_IMPORT(PyObject *) PyString_FromStringAndSize(const char *, int);
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49 extern DL_IMPORT(PyObject *) PyString_FromString(const char *);
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50 extern DL_IMPORT(PyObject *) PyString_FromFormatV(const char*, va_list)
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51 __attribute__((format(printf, 1, 0)));
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52 extern DL_IMPORT(PyObject *) PyString_FromFormat(const char*, ...)
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53 __attribute__((format(printf, 1, 2)));
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54 extern DL_IMPORT(int) PyString_Size(PyObject *);
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55 extern DL_IMPORT(char *) PyString_AsString(PyObject *);
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56 extern DL_IMPORT(void) PyString_Concat(PyObject **, PyObject *);
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57 extern DL_IMPORT(void) PyString_ConcatAndDel(PyObject **, PyObject *);
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58 extern DL_IMPORT(int) _PyString_Resize(PyObject **, int);
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59 extern DL_IMPORT(int) _PyString_Eq(PyObject *, PyObject*);
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60 extern DL_IMPORT(PyObject *) PyString_Format(PyObject *, PyObject *);
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61 extern DL_IMPORT(PyObject *) _PyString_FormatLong(PyObject*, int, int,
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62 int, char**, int*);
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64 extern DL_IMPORT(void) PyString_InternInPlace(PyObject **);
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65 extern DL_IMPORT(PyObject *) PyString_InternFromString(const char *);
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66 extern DL_IMPORT(void) _Py_ReleaseInternedStrings(void);
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68 /* Macro, trading safety for speed */
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69 #define PyString_AS_STRING(op) (((PyStringObject *)(op))->ob_sval)
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70 #define PyString_GET_SIZE(op) (((PyStringObject *)(op))->ob_size)
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71
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72 /* _PyString_Join(sep, x) is like sep.join(x). sep must be PyStringObject*,
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73 x must be an iterable object. */
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74 extern DL_IMPORT(PyObject *) _PyString_Join(PyObject *sep, PyObject *x);
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76 /* --- Generic Codecs ----------------------------------------------------- */
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77
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78 /* Create an object by decoding the encoded string s of the
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79 given size. */
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80
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81 extern DL_IMPORT(PyObject*) PyString_Decode(
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82 const char *s, /* encoded string */
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83 int size, /* size of buffer */
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84 const char *encoding, /* encoding */
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85 const char *errors /* error handling */
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86 );
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87
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88 /* Encodes a char buffer of the given size and returns a
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89 Python object. */
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91 extern DL_IMPORT(PyObject*) PyString_Encode(
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92 const char *s, /* string char buffer */
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93 int size, /* number of chars to encode */
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94 const char *encoding, /* encoding */
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95 const char *errors /* error handling */
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96 );
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97
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98 /* Encodes a string object and returns the result as Python
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99 object. */
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100
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101 extern DL_IMPORT(PyObject*) PyString_AsEncodedObject(
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102 PyObject *str, /* string object */
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103 const char *encoding, /* encoding */
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104 const char *errors /* error handling */
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105 );
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106
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107 /* Encodes a string object and returns the result as Python string
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108 object.
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109
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110 If the codec returns an Unicode object, the object is converted
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111 back to a string using the default encoding.
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112
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113 DEPRECATED - use PyString_AsEncodedObject() instead. */
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114
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115 extern DL_IMPORT(PyObject*) PyString_AsEncodedString(
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116 PyObject *str, /* string object */
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117 const char *encoding, /* encoding */
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118 const char *errors /* error handling */
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119 );
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120
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121 /* Decodes a string object and returns the result as Python
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122 object. */
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123
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124 extern DL_IMPORT(PyObject*) PyString_AsDecodedObject(
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125 PyObject *str, /* string object */
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126 const char *encoding, /* encoding */
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127 const char *errors /* error handling */
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128 );
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129
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130 /* Decodes a string object and returns the result as Python string
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131 object.
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132
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133 If the codec returns an Unicode object, the object is converted
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134 back to a string using the default encoding.
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135
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136 DEPRECATED - use PyString_AsDecodedObject() instead. */
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137
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138 extern DL_IMPORT(PyObject*) PyString_AsDecodedString(
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139 PyObject *str, /* string object */
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140 const char *encoding, /* encoding */
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141 const char *errors /* error handling */
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142 );
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143
14696
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144 /* Provides access to the internal data buffer and size of a string
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145 object or the default encoded version of an Unicode object. Passing
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146 NULL as *len parameter will force the string buffer to be
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147 0-terminated (passing a string with embedded NULL characters will
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148 cause an exception). */
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149
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150 extern DL_IMPORT(int) PyString_AsStringAndSize(
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151 register PyObject *obj, /* string or Unicode object */
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152 register char **s, /* pointer to buffer variable */
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153 register int *len /* pointer to length variable or NULL
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154 (only possible for 0-terminated
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155 strings) */
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156 );
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157
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158
1329
519c25039c6a * Added support for X11 modules.
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159 #ifdef __cplusplus
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160 }
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161 #endif
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162 #endif /* !Py_STRINGOBJECT_H */