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annotate Python/getargs.c @ 62197:2cfe15b3cdf5

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PyArg_Parse*("Z#") raises an error for unknown type instead of ignoring the error and leave the pointer to the string and the size unchanged (not initialized). Fix also the type in the error message of "Z", "Z#" and "Y" formats.
author Victor Stinner <victor.stinner@haypocalc.com>
date Tue, 08 Jun 2010 21:45:51 +0000
parents c3f2ed4d8e65
children d7113cacd428
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
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2 /* New getargs implementation */
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4 #include "Python.h"
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6 #include <ctype.h>
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9 #ifdef __cplusplus
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10 extern "C" {
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11 #endif
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12 int PyArg_Parse(PyObject *, const char *, ...);
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13 int PyArg_ParseTuple(PyObject *, const char *, ...);
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14 int PyArg_VaParse(PyObject *, const char *, va_list);
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16 int PyArg_ParseTupleAndKeywords(PyObject *, PyObject *,
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17 const char *, char **, ...);
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18 int PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *,
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19 const char *, char **, va_list);
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21 #ifdef HAVE_DECLSPEC_DLL
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22 /* Export functions */
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23 PyAPI_FUNC(int) _PyArg_Parse_SizeT(PyObject *, char *, ...);
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24 PyAPI_FUNC(int) _PyArg_ParseTuple_SizeT(PyObject *, char *, ...);
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25 PyAPI_FUNC(int) _PyArg_ParseTupleAndKeywords_SizeT(PyObject *, PyObject *,
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26 const char *, char **, ...);
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27 PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...);
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28 PyAPI_FUNC(int) _PyArg_VaParse_SizeT(PyObject *, char *, va_list);
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29 PyAPI_FUNC(int) _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *, PyObject *,
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30 const char *, char **, va_list);
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31 #endif
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32
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33 #define FLAG_COMPAT 1
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34 #define FLAG_SIZE_T 2
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37 /* Forward */
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38 static int vgetargs1(PyObject *, const char *, va_list *, int);
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39 static void seterror(int, const char *, int *, const char *, const char *);
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40 static char *convertitem(PyObject *, const char **, va_list *, int, int *,
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41 char *, size_t, PyObject **);
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42 static char *converttuple(PyObject *, const char **, va_list *, int,
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43 int *, char *, size_t, int, PyObject **);
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44 static char *convertsimple(PyObject *, const char **, va_list *, int, char *,
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45 size_t, PyObject **);
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46 static Py_ssize_t convertbuffer(PyObject *, void **p, char **);
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47 static int getbuffer(PyObject *, Py_buffer *, char**);
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49 static int vgetargskeywords(PyObject *, PyObject *,
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50 const char *, char **, va_list *, int);
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51 static char *skipitem(const char **, va_list *, int);
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53 int
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54 PyArg_Parse(PyObject *args, const char *format, ...)
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55 {
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56 int retval;
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57 va_list va;
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59 va_start(va, format);
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60 retval = vgetargs1(args, format, &va, FLAG_COMPAT);
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61 va_end(va);
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62 return retval;
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63 }
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64
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65 int
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66 _PyArg_Parse_SizeT(PyObject *args, char *format, ...)
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67 {
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68 int retval;
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69 va_list va;
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71 va_start(va, format);
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72 retval = vgetargs1(args, format, &va, FLAG_COMPAT|FLAG_SIZE_T);
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73 va_end(va);
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74 return retval;
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75 }
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78 int
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79 PyArg_ParseTuple(PyObject *args, const char *format, ...)
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80 {
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81 int retval;
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82 va_list va;
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84 va_start(va, format);
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85 retval = vgetargs1(args, format, &va, 0);
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86 va_end(va);
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87 return retval;
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88 }
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90 int
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91 _PyArg_ParseTuple_SizeT(PyObject *args, char *format, ...)
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92 {
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93 int retval;
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94 va_list va;
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96 va_start(va, format);
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97 retval = vgetargs1(args, format, &va, FLAG_SIZE_T);
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98 va_end(va);
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99 return retval;
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100 }
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103 int
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104 PyArg_VaParse(PyObject *args, const char *format, va_list va)
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105 {
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106 va_list lva;
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107
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108 #ifdef VA_LIST_IS_ARRAY
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109 memcpy(lva, va, sizeof(va_list));
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110 #else
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111 #ifdef __va_copy
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112 __va_copy(lva, va);
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113 #else
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114 lva = va;
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115 #endif
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116 #endif
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117
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118 return vgetargs1(args, format, &lva, 0);
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119 }
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120
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121 int
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122 _PyArg_VaParse_SizeT(PyObject *args, char *format, va_list va)
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123 {
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124 va_list lva;
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125
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126 #ifdef VA_LIST_IS_ARRAY
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127 memcpy(lva, va, sizeof(va_list));
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128 #else
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129 #ifdef __va_copy
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130 __va_copy(lva, va);
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131 #else
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132 lva = va;
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133 #endif
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134 #endif
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135
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136 return vgetargs1(args, format, &lva, FLAG_SIZE_T);
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137 }
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138
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139
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140 /* Handle cleanup of allocated memory in case of exception */
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141
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142 #define GETARGS_CAPSULE_NAME_CLEANUP_PTR "getargs.cleanup_ptr"
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143 #define GETARGS_CAPSULE_NAME_CLEANUP_BUFFER "getargs.cleanup_buffer"
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144 #define GETARGS_CAPSULE_NAME_CLEANUP_CONVERT "getargs.cleanup_convert"
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145
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146 static void
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147 cleanup_ptr(PyObject *self)
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148 {
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149 void *ptr = PyCapsule_GetPointer(self, GETARGS_CAPSULE_NAME_CLEANUP_PTR);
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150 if (ptr) {
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151 PyMem_FREE(ptr);
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152 }
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153 }
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154
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155 static void
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156 cleanup_buffer(PyObject *self)
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157 {
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158 Py_buffer *ptr = (Py_buffer *)PyCapsule_GetPointer(self, GETARGS_CAPSULE_NAME_CLEANUP_BUFFER);
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159 if (ptr) {
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160 PyBuffer_Release(ptr);
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161 }
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162 }
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163
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164 static int
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165 addcleanup(void *ptr, PyObject **freelist, PyCapsule_Destructor destr)
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166 {
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167 PyObject *cobj;
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168 const char *name;
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169
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170 if (!*freelist) {
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171 *freelist = PyList_New(0);
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172 if (!*freelist) {
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173 destr(ptr);
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174 return -1;
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175 }
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176 }
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177
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178 if (destr == cleanup_ptr) {
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179 name = GETARGS_CAPSULE_NAME_CLEANUP_PTR;
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180 } else if (destr == cleanup_buffer) {
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181 name = GETARGS_CAPSULE_NAME_CLEANUP_BUFFER;
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182 } else {
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183 return -1;
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184 }
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185 cobj = PyCapsule_New(ptr, name, destr);
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186 if (!cobj) {
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187 destr(ptr);
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188 return -1;
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189 }
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190 if (PyList_Append(*freelist, cobj)) {
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191 Py_DECREF(cobj);
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192 return -1;
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193 }
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194 Py_DECREF(cobj);
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195 return 0;
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196 }
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197
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198 static void
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199 cleanup_convert(PyObject *self)
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200 {
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201 typedef int (*destr_t)(PyObject *, void *);
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202 destr_t destr = (destr_t)PyCapsule_GetContext(self);
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203 void *ptr = PyCapsule_GetPointer(self,
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204 GETARGS_CAPSULE_NAME_CLEANUP_CONVERT);
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205 if (ptr && destr)
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206 destr(NULL, ptr);
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207 }
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208
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209 static int
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210 addcleanup_convert(void *ptr, PyObject **freelist, int (*destr)(PyObject*,void*))
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211 {
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212 PyObject *cobj;
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213 if (!*freelist) {
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214 *freelist = PyList_New(0);
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215 if (!*freelist) {
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216 destr(NULL, ptr);
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217 return -1;
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218 }
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219 }
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220 cobj = PyCapsule_New(ptr, GETARGS_CAPSULE_NAME_CLEANUP_CONVERT,
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221 cleanup_convert);
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222 if (!cobj) {
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223 destr(NULL, ptr);
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224 return -1;
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225 }
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226 if (PyCapsule_SetContext(cobj, destr) == -1) {
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227 /* This really should not happen. */
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228 Py_FatalError("capsule refused setting of context.");
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229 }
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230 if (PyList_Append(*freelist, cobj)) {
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231 Py_DECREF(cobj); /* This will also call destr. */
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232 return -1;
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233 }
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234 Py_DECREF(cobj);
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235 return 0;
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236 }
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237
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238 static int
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239 cleanreturn(int retval, PyObject *freelist)
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240 {
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241 if (freelist && retval != 0) {
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242 /* We were successful, reset the destructors so that they
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243 don't get called. */
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244 Py_ssize_t len = PyList_GET_SIZE(freelist), i;
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245 for (i = 0; i < len; i++)
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246 PyCapsule_SetDestructor(PyList_GET_ITEM(freelist, i), NULL);
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247 }
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248 Py_XDECREF(freelist);
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249 return retval;
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250 }
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251
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252
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253 static int
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254 vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags)
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255 {
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256 char msgbuf[256];
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257 int levels[32];
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258 const char *fname = NULL;
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259 const char *message = NULL;
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260 int min = -1;
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261 int max = 0;
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262 int level = 0;
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263 int endfmt = 0;
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264 const char *formatsave = format;
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265 Py_ssize_t i, len;
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266 char *msg;
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267 PyObject *freelist = NULL;
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268 int compat = flags & FLAG_COMPAT;
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269
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270 assert(compat || (args != (PyObject*)NULL));
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271 flags = flags & ~FLAG_COMPAT;
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272
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273 while (endfmt == 0) {
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274 int c = *format++;
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275 switch (c) {
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276 case '(':
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277 if (level == 0)
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278 max++;
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279 level++;
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280 if (level >= 30)
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281 Py_FatalError("too many tuple nesting levels "
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282 "in argument format string");
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283 break;
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284 case ')':
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285 if (level == 0)
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286 Py_FatalError("excess ')' in getargs format");
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287 else
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288 level--;
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289 break;
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290 case '\0':
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291 endfmt = 1;
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292 break;
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293 case ':':
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294 fname = format;
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295 endfmt = 1;
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296 break;
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297 case ';':
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298 message = format;
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299 endfmt = 1;
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300 break;
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301 default:
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302 if (level == 0) {
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303 if (c == 'O')
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304 max++;
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305 else if (isalpha(Py_CHARMASK(c))) {
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306 if (c != 'e') /* skip encoded */
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307 max++;
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308 } else if (c == '|')
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309 min = max;
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310 }
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311 break;
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312 }
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313 }
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314
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315 if (level != 0)
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316 Py_FatalError(/* '(' */ "missing ')' in getargs format");
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317
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318 if (min < 0)
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319 min = max;
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320
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321 format = formatsave;
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322
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323 if (compat) {
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324 if (max == 0) {
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325 if (args == NULL)
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326 return 1;
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327 PyOS_snprintf(msgbuf, sizeof(msgbuf),
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328 "%.200s%s takes no arguments",
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329 fname==NULL ? "function" : fname,
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330 fname==NULL ? "" : "()");
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331 PyErr_SetString(PyExc_TypeError, msgbuf);
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332 return 0;
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333 }
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334 else if (min == 1 && max == 1) {
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335 if (args == NULL) {
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336 PyOS_snprintf(msgbuf, sizeof(msgbuf),
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337 "%.200s%s takes at least one argument",
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338 fname==NULL ? "function" : fname,
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339 fname==NULL ? "" : "()");
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340 PyErr_SetString(PyExc_TypeError, msgbuf);
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341 return 0;
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342 }
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343 msg = convertitem(args, &format, p_va, flags, levels,
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344 msgbuf, sizeof(msgbuf), &freelist);
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345 if (msg == NULL)
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346 return cleanreturn(1, freelist);
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347 seterror(levels[0], msg, levels+1, fname, message);
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348 return cleanreturn(0, freelist);
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349 }
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350 else {
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351 PyErr_SetString(PyExc_SystemError,
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352 "old style getargs format uses new features");
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353 return 0;
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354 }
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355 }
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356
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357 if (!PyTuple_Check(args)) {
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358 PyErr_SetString(PyExc_SystemError,
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359 "new style getargs format but argument is not a tuple");
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360 return 0;
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361 }
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362
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363 len = PyTuple_GET_SIZE(args);
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364
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365 if (len < min || max < len) {
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366 if (message == NULL) {
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367 PyOS_snprintf(msgbuf, sizeof(msgbuf),
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368 "%.150s%s takes %s %d argument%s "
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369 "(%ld given)",
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370 fname==NULL ? "function" : fname,
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371 fname==NULL ? "" : "()",
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372 min==max ? "exactly"
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373 : len < min ? "at least" : "at most",
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374 len < min ? min : max,
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375 (len < min ? min : max) == 1 ? "" : "s",
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376 Py_SAFE_DOWNCAST(len, Py_ssize_t, long));
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377 message = msgbuf;
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378 }
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379 PyErr_SetString(PyExc_TypeError, message);
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380 return 0;
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381 }
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382
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383 for (i = 0; i < len; i++) {
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384 if (*format == '|')
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385 format++;
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386 msg = convertitem(PyTuple_GET_ITEM(args, i), &format, p_va,
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387 flags, levels, msgbuf,
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388 sizeof(msgbuf), &freelist);
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389 if (msg) {
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390 seterror(i+1, msg, levels, fname, msg);
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391 return cleanreturn(0, freelist);
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392 }
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393 }
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394
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395 if (*format != '\0' && !isalpha(Py_CHARMASK(*format)) &&
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396 *format != '(' &&
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397 *format != '|' && *format != ':' && *format != ';') {
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398 PyErr_Format(PyExc_SystemError,
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399 "bad format string: %.200s", formatsave);
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400 return cleanreturn(0, freelist);
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401 }
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402
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403 return cleanreturn(1, freelist);
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404 }
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405
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406
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407
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408 static void
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409 seterror(int iarg, const char *msg, int *levels, const char *fname,
9541369b0dca Add const to several API functions that take char *.
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410 const char *message)
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411 {
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412 char buf[512];
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413 int i;
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414 char *p = buf;
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415
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416 if (PyErr_Occurred())
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417 return;
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418 else if (message == NULL) {
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419 if (fname != NULL) {
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420 PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname);
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421 p += strlen(p);
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422 }
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423 if (iarg != 0) {
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424 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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425 "argument %d", iarg);
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426 i = 0;
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427 p += strlen(p);
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428 while (levels[i] > 0 && i < 32 && (int)(p-buf) < 220) {
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429 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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430 ", item %d", levels[i]-1);
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431 p += strlen(p);
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432 i++;
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433 }
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434 }
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435 else {
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436 PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument");
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437 p += strlen(p);
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438 }
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439 PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg);
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440 message = buf;
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441 }
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442 PyErr_SetString(PyExc_TypeError, message);
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443 }
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444
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445
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446 /* Convert a tuple argument.
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447 On entry, *p_format points to the character _after_ the opening '('.
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448 On successful exit, *p_format points to the closing ')'.
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449 If successful:
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450 *p_format and *p_va are updated,
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451 *levels and *msgbuf are untouched,
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452 and NULL is returned.
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453 If the argument is invalid:
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454 *p_format is unchanged,
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455 *p_va is undefined,
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456 *levels is a 0-terminated list of item numbers,
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457 *msgbuf contains an error message, whose format is:
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458 "must be <typename1>, not <typename2>", where:
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459 <typename1> is the name of the expected type, and
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460 <typename2> is the name of the actual type,
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461 and msgbuf is returned.
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462 */
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463
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464 static char *
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465 converttuple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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466 int *levels, char *msgbuf, size_t bufsize, int toplevel,
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467 PyObject **freelist)
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468 {
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469 int level = 0;
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470 int n = 0;
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471 const char *format = *p_format;
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472 int i;
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473
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474 for (;;) {
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475 int c = *format++;
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476 if (c == '(') {
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477 if (level == 0)
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478 n++;
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479 level++;
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480 }
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481 else if (c == ')') {
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482 if (level == 0)
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483 break;
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484 level--;
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485 }
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486 else if (c == ':' || c == ';' || c == '\0')
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487 break;
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488 else if (level == 0 && isalpha(Py_CHARMASK(c)))
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489 n++;
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490 }
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491
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492 if (!PySequence_Check(arg) || PyBytes_Check(arg)) {
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493 levels[0] = 0;
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494 PyOS_snprintf(msgbuf, bufsize,
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495 toplevel ? "expected %d arguments, not %.50s" :
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496 "must be %d-item sequence, not %.50s",
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497 n,
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498 arg == Py_None ? "None" : arg->ob_type->tp_name);
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499 return msgbuf;
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500 }
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501
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502 if ((i = PySequence_Size(arg)) != n) {
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503 levels[0] = 0;
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504 PyOS_snprintf(msgbuf, bufsize,
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505 toplevel ? "expected %d arguments, not %d" :
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506 "must be sequence of length %d, not %d",
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507 n, i);
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508 return msgbuf;
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509 }
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510
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511 format = *p_format;
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512 for (i = 0; i < n; i++) {
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513 char *msg;
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514 PyObject *item;
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515 item = PySequence_GetItem(arg, i);
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516 if (item == NULL) {
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517 PyErr_Clear();
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518 levels[0] = i+1;
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519 levels[1] = 0;
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520 strncpy(msgbuf, "is not retrievable", bufsize);
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521 return msgbuf;
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522 }
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523 msg = convertitem(item, &format, p_va, flags, levels+1,
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524 msgbuf, bufsize, freelist);
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525 /* PySequence_GetItem calls tp->sq_item, which INCREFs */
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diff changeset
526 Py_XDECREF(item);
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527 if (msg != NULL) {
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528 levels[0] = i+1;
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529 return msg;
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530 }
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531 }
15899
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parents: 15502
diff changeset
532
61466
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533 *p_format = format;
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534 return NULL;
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535 }
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Guido van Rossum <guido@python.org>
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536
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
Guido van Rossum <guido@python.org>
parents:
diff changeset
537
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
Guido van Rossum <guido@python.org>
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diff changeset
538 /* Convert a single item. */
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Guido van Rossum <guido@python.org>
parents:
diff changeset
539
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Guido van Rossum <guido@python.org>
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diff changeset
540 static char *
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diff changeset
541 convertitem(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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diff changeset
542 int *levels, char *msgbuf, size_t bufsize, PyObject **freelist)
1913
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Guido van Rossum <guido@python.org>
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diff changeset
543 {
61466
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544 char *msg;
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545 const char *format = *p_format;
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546
61466
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547 if (*format == '(' /* ')' */) {
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548 format++;
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diff changeset
549 msg = converttuple(arg, &format, p_va, flags, levels, msgbuf,
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550 bufsize, 0, freelist);
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551 if (msg == NULL)
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552 format++;
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553 }
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554 else {
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555 msg = convertsimple(arg, &format, p_va, flags,
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556 msgbuf, bufsize, freelist);
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557 if (msg != NULL)
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558 levels[0] = 0;
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559 }
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560 if (msg == NULL)
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561 *p_format = format;
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562 return msg;
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563 }
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564
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565
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parents:
diff changeset
566
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567 #define UNICODE_DEFAULT_ENCODING(arg) \
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568 _PyUnicode_AsDefaultEncodedString(arg, NULL)
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569
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570 /* Format an error message generated by convertsimple(). */
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571
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572 static char *
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Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
573 converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize)
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diff changeset
574 {
61466
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diff changeset
575 assert(expected != NULL);
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576 assert(arg != NULL);
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diff changeset
577 PyOS_snprintf(msgbuf, bufsize,
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diff changeset
578 "must be %.50s, not %.50s", expected,
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diff changeset
579 arg == Py_None ? "None" : arg->ob_type->tp_name);
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580 return msgbuf;
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581 }
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diff changeset
582
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diff changeset
583 #define CONV_UNICODE "(unicode conversion error)"
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diff changeset
584
58072
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585 /* explicitly check for float arguments when integers are expected. For now
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diff changeset
586 * signal a warning. Returns true if an exception was raised. */
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587 static int
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diff changeset
588 float_argument_warning(PyObject *arg)
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589 {
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590 if (PyFloat_Check(arg) &&
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591 PyErr_Warn(PyExc_DeprecationWarning,
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592 "integer argument expected, got float" ))
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593 return 1;
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594 else
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595 return 0;
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596 }
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597
36988
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598 /* Explicitly check for float arguments when integers are expected.
49c6eb688906 Checkpoint. 218 tests are okay; 53 are failing. Done so far:
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parents: 36773
diff changeset
599 Return 1 for error, 0 if ok. */
27685
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff changeset
600 static int
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 27363
diff changeset
601 float_argument_error(PyObject *arg)
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diff changeset
602 {
61466
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603 if (PyFloat_Check(arg)) {
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604 PyErr_SetString(PyExc_TypeError,
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diff changeset
605 "integer argument expected, got float" );
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606 return 1;
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607 }
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608 else
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609 return 0;
27685
9e47f9ed49f6 If a float is passed where a int is expected, issue a DeprecationWarning
Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff changeset
610 }
9e47f9ed49f6 If a float is passed where a int is expected, issue a DeprecationWarning
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 27363
diff changeset
611
17996
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diff changeset
612 /* Convert a non-tuple argument. Return NULL if conversion went OK,
5a9debb14440 Internal refactoring of convertsimple() and friends.
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parents: 17857
diff changeset
613 or a string with a message describing the failure. The message is
5a9debb14440 Internal refactoring of convertsimple() and friends.
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diff changeset
614 formatted as "must be <desired type>, not <actual type>".
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615 When failing, an exception may or may not have been raised.
35552
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Georg Brandl <georg@python.org>
parents: 35449
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616 Don't call if a tuple is expected.
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Georg Brandl <georg@python.org>
parents: 35449
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617
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
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parents: 35449
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618 When you add new format codes, please don't forget poor skipitem() below.
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619 */
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diff changeset
620
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621 static char *
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622 convertsimple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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parents: 35552
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623 char *msgbuf, size_t bufsize, PyObject **freelist)
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624 {
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625 /* For # codes */
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626 #define FETCH_SIZE int *q=NULL;Py_ssize_t *q2=NULL;\
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627 if (flags & FLAG_SIZE_T) q2=va_arg(*p_va, Py_ssize_t*); \
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diff changeset
628 else q=va_arg(*p_va, int*);
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629 #define STORE_SIZE(s) if (flags & FLAG_SIZE_T) *q2=s; else *q=s;
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630 #define BUFFER_LEN ((flags & FLAG_SIZE_T) ? *q2:*q)
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631
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diff changeset
632 const char *format = *p_format;
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diff changeset
633 char c = *format++;
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634 PyObject *uarg;
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diff changeset
635
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636 switch (c) {
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637
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638 case 'b': { /* unsigned byte -- very short int */
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639 char *p = va_arg(*p_va, char *);
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640 long ival;
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641 if (float_argument_error(arg))
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642 return converterr("integer<b>", arg, msgbuf, bufsize);
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643 ival = PyLong_AsLong(arg);
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644 if (ival == -1 && PyErr_Occurred())
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645 return converterr("integer<b>", arg, msgbuf, bufsize);
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646 else if (ival < 0) {
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647 PyErr_SetString(PyExc_OverflowError,
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648 "unsigned byte integer is less than minimum");
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649 return converterr("integer<b>", arg, msgbuf, bufsize);
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650 }
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651 else if (ival > UCHAR_MAX) {
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652 PyErr_SetString(PyExc_OverflowError,
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653 "unsigned byte integer is greater than maximum");
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654 return converterr("integer<b>", arg, msgbuf, bufsize);
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655 }
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656 else
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657 *p = (unsigned char) ival;
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658 break;
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659 }
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660
61466
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661 case 'B': {/* byte sized bitfield - both signed and unsigned
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662 values allowed */
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663 char *p = va_arg(*p_va, char *);
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664 long ival;
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665 if (float_argument_error(arg))
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666 return converterr("integer<B>", arg, msgbuf, bufsize);
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667 ival = PyLong_AsUnsignedLongMask(arg);
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668 if (ival == -1 && PyErr_Occurred())
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669 return converterr("integer<B>", arg, msgbuf, bufsize);
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670 else
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671 *p = (unsigned char) ival;
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672 break;
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673 }
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674
61466
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675 case 'h': {/* signed short int */
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676 short *p = va_arg(*p_va, short *);
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677 long ival;
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678 if (float_argument_error(arg))
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679 return converterr("integer<h>", arg, msgbuf, bufsize);
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680 ival = PyLong_AsLong(arg);
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681 if (ival == -1 && PyErr_Occurred())
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682 return converterr("integer<h>", arg, msgbuf, bufsize);
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683 else if (ival < SHRT_MIN) {
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684 PyErr_SetString(PyExc_OverflowError,
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685 "signed short integer is less than minimum");
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686 return converterr("integer<h>", arg, msgbuf, bufsize);
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687 }
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688 else if (ival > SHRT_MAX) {
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689 PyErr_SetString(PyExc_OverflowError,
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690 "signed short integer is greater than maximum");
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691 return converterr("integer<h>", arg, msgbuf, bufsize);
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692 }
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693 else
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694 *p = (short) ival;
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695 break;
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696 }
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697
61466
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698 case 'H': { /* short int sized bitfield, both signed and
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699 unsigned allowed */
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700 unsigned short *p = va_arg(*p_va, unsigned short *);
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701 long ival;
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702 if (float_argument_error(arg))
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703 return converterr("integer<H>", arg, msgbuf, bufsize);
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704 ival = PyLong_AsUnsignedLongMask(arg);
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705 if (ival == -1 && PyErr_Occurred())
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706 return converterr("integer<H>", arg, msgbuf, bufsize);
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707 else
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708 *p = (unsigned short) ival;
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709 break;
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710 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
711
61466
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712 case 'i': {/* signed int */
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713 int *p = va_arg(*p_va, int *);
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714 long ival;
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715 if (float_argument_error(arg))
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716 return converterr("integer<i>", arg, msgbuf, bufsize);
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717 ival = PyLong_AsLong(arg);
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718 if (ival == -1 && PyErr_Occurred())
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719 return converterr("integer<i>", arg, msgbuf, bufsize);
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720 else if (ival > INT_MAX) {
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721 PyErr_SetString(PyExc_OverflowError,
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722 "signed integer is greater than maximum");
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723 return converterr("integer<i>", arg, msgbuf, bufsize);
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724 }
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725 else if (ival < INT_MIN) {
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726 PyErr_SetString(PyExc_OverflowError,
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727 "signed integer is less than minimum");
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728 return converterr("integer<i>", arg, msgbuf, bufsize);
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729 }
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730 else
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731 *p = ival;
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732 break;
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733 }
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
734
61466
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735 case 'I': { /* int sized bitfield, both signed and
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736 unsigned allowed */
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737 unsigned int *p = va_arg(*p_va, unsigned int *);
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738 unsigned int ival;
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739 if (float_argument_error(arg))
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740 return converterr("integer<I>", arg, msgbuf, bufsize);
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741 ival = (unsigned int)PyLong_AsUnsignedLongMask(arg);
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742 if (ival == (unsigned int)-1 && PyErr_Occurred())
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743 return converterr("integer<I>", arg, msgbuf, bufsize);
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744 else
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745 *p = ival;
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746 break;
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747 }
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748
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749 case 'n': /* Py_ssize_t */
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750 {
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751 PyObject *iobj;
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752 Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *);
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753 Py_ssize_t ival = -1;
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754 if (float_argument_error(arg))
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755 return converterr("integer<n>", arg, msgbuf, bufsize);
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756 iobj = PyNumber_Index(arg);
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757 if (iobj != NULL) {
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758 ival = PyLong_AsSsize_t(iobj);
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759 Py_DECREF(iobj);
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760 }
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761 if (ival == -1 && PyErr_Occurred())
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762 return converterr("integer<n>", arg, msgbuf, bufsize);
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763 *p = ival;
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764 break;
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765 }
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766 case 'l': {/* long int */
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767 long *p = va_arg(*p_va, long *);
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768 long ival;
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769 if (float_argument_error(arg))
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770 return converterr("integer<l>", arg, msgbuf, bufsize);
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771 ival = PyLong_AsLong(arg);
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772 if (ival == -1 && PyErr_Occurred())
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773 return converterr("integer<l>", arg, msgbuf, bufsize);
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774 else
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775 *p = ival;
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776 break;
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777 }
28652
28a2975514cd SF # 595026: support for masks in getargs.c.
Thomas Heller <theller@ctypes.org>
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778
61466
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779 case 'k': { /* long sized bitfield */
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780 unsigned long *p = va_arg(*p_va, unsigned long *);
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781 unsigned long ival;
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782 if (PyLong_Check(arg))
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783 ival = PyLong_AsUnsignedLongMask(arg);
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784 else
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785 return converterr("integer<k>", arg, msgbuf, bufsize);
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786 *p = ival;
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787 break;
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788 }
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diff changeset
789
9949
98e37347378b Change rare occurrences of #if HAVE_LONG_LONG to #ifdef.
Guido van Rossum <guido@python.org>
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diff changeset
790 #ifdef HAVE_LONG_LONG
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791 case 'L': {/* PY_LONG_LONG */
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792 PY_LONG_LONG *p = va_arg( *p_va, PY_LONG_LONG * );
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793 PY_LONG_LONG ival;
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794 if (float_argument_warning(arg))
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795 return converterr("long<L>", arg, msgbuf, bufsize);
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796 ival = PyLong_AsLongLong(arg);
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797 if (ival == (PY_LONG_LONG)-1 && PyErr_Occurred() ) {
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798 return converterr("long<L>", arg, msgbuf, bufsize);
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799 } else {
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800 *p = ival;
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801 }
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802 break;
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803 }
28652
28a2975514cd SF # 595026: support for masks in getargs.c.
Thomas Heller <theller@ctypes.org>
parents: 28437
diff changeset
804
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805 case 'K': { /* long long sized bitfield */
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806 unsigned PY_LONG_LONG *p = va_arg(*p_va, unsigned PY_LONG_LONG *);
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807 unsigned PY_LONG_LONG ival;
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808 if (PyLong_Check(arg))
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809 ival = PyLong_AsUnsignedLongLongMask(arg);
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810 else
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811 return converterr("integer<K>", arg, msgbuf, bufsize);
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812 *p = ival;
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813 break;
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814 }
8822
bd47ee068b83 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
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diff changeset
815 #endif
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816
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817 case 'f': {/* float */
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818 float *p = va_arg(*p_va, float *);
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819 double dval = PyFloat_AsDouble(arg);
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820 if (PyErr_Occurred())
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821 return converterr("float<f>", arg, msgbuf, bufsize);
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822 else
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823 *p = (float) dval;
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824 break;
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825 }
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826
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827 case 'd': {/* double */
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828 double *p = va_arg(*p_va, double *);
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829 double dval = PyFloat_AsDouble(arg);
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830 if (PyErr_Occurred())
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831 return converterr("float<d>", arg, msgbuf, bufsize);
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832 else
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833 *p = dval;
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834 break;
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835 }
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836
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837 case 'D': {/* complex double */
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838 Py_complex *p = va_arg(*p_va, Py_complex *);
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839 Py_complex cval;
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840 cval = PyComplex_AsCComplex(arg);
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841 if (PyErr_Occurred())
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842 return converterr("complex<D>", arg, msgbuf, bufsize);
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843 else
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844 *p = cval;
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845 break;
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846 }
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847
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848 case 'c': {/* char */
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849 char *p = va_arg(*p_va, char *);
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850 if (PyBytes_Check(arg) && PyBytes_Size(arg) == 1)
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851 *p = PyBytes_AS_STRING(arg)[0];
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852 else
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853 return converterr("a byte string of length 1", arg, msgbuf, bufsize);
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854 break;
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855 }
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856
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857 case 'C': {/* unicode char */
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858 int *p = va_arg(*p_va, int *);
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859 if (PyUnicode_Check(arg) &&
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860 PyUnicode_GET_SIZE(arg) == 1)
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861 *p = PyUnicode_AS_UNICODE(arg)[0];
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862 else
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863 return converterr("a unicode character", arg, msgbuf, bufsize);
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864 break;
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865 }
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866
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867 /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w', 't' codes all
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868 need to be cleaned up! */
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869
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870 case 's': {/* text string */
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871 if (*format == '*') {
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872 Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *);
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873
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874 if (PyUnicode_Check(arg)) {
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875 uarg = UNICODE_DEFAULT_ENCODING(arg);
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876 if (uarg == NULL)
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877 return converterr(CONV_UNICODE,
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878 arg, msgbuf, bufsize);
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879 PyBuffer_FillInfo(p, arg,
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880 PyBytes_AS_STRING(uarg), PyBytes_GET_SIZE(uarg),
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881 1, 0);
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882 }
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883 else { /* any buffer-like object */
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884 char *buf;
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885 if (getbuffer(arg, p, &buf) < 0)
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886 return converterr(buf, arg, msgbuf, bufsize);
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887 }
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888 if (addcleanup(p, freelist, cleanup_buffer)) {
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889 return converterr(
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890 "(cleanup problem)",
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891 arg, msgbuf, bufsize);
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892 }
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893 format++;
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894 } else if (*format == '#') {
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895 void **p = (void **)va_arg(*p_va, char **);
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896 FETCH_SIZE;
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897
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898 if (PyUnicode_Check(arg)) {
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899 uarg = UNICODE_DEFAULT_ENCODING(arg);
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900 if (uarg == NULL)
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901 return converterr(CONV_UNICODE,
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902 arg, msgbuf, bufsize);
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903 *p = PyBytes_AS_STRING(uarg);
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904 STORE_SIZE(PyBytes_GET_SIZE(uarg));
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905 }
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906 else { /* any buffer-like object */
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907 /* XXX Really? */
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908 char *buf;
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909 Py_ssize_t count = convertbuffer(arg, p, &buf);
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910 if (count < 0)
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911 return converterr(buf, arg, msgbuf, bufsize);
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912 STORE_SIZE(count);
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913 }
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914 format++;
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915 } else {
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916 char **p = va_arg(*p_va, char **);
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917
61466
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918 if (PyUnicode_Check(arg)) {
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919 uarg = UNICODE_DEFAULT_ENCODING(arg);
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920 if (uarg == NULL)
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921 return converterr(CONV_UNICODE,
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922 arg, msgbuf, bufsize);
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923 *p = PyBytes_AS_STRING(uarg);
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924 }
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925 else
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926 return converterr("string", arg, msgbuf, bufsize);
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927 if ((Py_ssize_t) strlen(*p) != PyBytes_GET_SIZE(uarg))
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928 return converterr("string without null bytes",
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929 arg, msgbuf, bufsize);
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930 }
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931 break;
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932 }
5410
3b2fda31bf1b Checkin of Jack's buffer mods.
Guido van Rossum <guido@python.org>
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diff changeset
933
61466
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934 case 'y': {/* any buffer-like object, but not PyUnicode */
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935 void **p = (void **)va_arg(*p_va, char **);
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936 char *buf;
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937 Py_ssize_t count;
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938 if (*format == '*') {
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939 if (getbuffer(arg, (Py_buffer*)p, &buf) < 0)
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940 return converterr(buf, arg, msgbuf, bufsize);
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941 format++;
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942 if (addcleanup(p, freelist, cleanup_buffer)) {
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943 return converterr(
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944 "(cleanup problem)",
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945 arg, msgbuf, bufsize);
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946 }
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947 break;
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948 }
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949 count = convertbuffer(arg, p, &buf);
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950 if (count < 0)
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951 return converterr(buf, arg, msgbuf, bufsize);
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952 else if (*format == '#') {
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953 FETCH_SIZE;
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954 STORE_SIZE(count);
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955 format++;
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956 }
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957 break;
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958 }
41611
c48fe4dc34a9 Change UnicodeDecodeError objects so that the 'object' attribute
Walter Dörwald <walter@livinglogic.de>
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959
61466
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960 case 'z': {/* like 's' or 's#', but None is okay, stored as NULL */
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961 if (*format == '*') {
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962 Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *);
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963
61466
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964 if (arg == Py_None)
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965 PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0);
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966 else if (PyUnicode_Check(arg)) {
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967 uarg = UNICODE_DEFAULT_ENCODING(arg);
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968 if (uarg == NULL)
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969 return converterr(CONV_UNICODE,
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970 arg, msgbuf, bufsize);
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971 PyBuffer_FillInfo(p, arg,
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972 PyBytes_AS_STRING(uarg), PyBytes_GET_SIZE(uarg),
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973 1, 0);
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974 }
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975 else { /* any buffer-like object */
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976 char *buf;
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977 if (getbuffer(arg, p, &buf) < 0)
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978 return converterr(buf, arg, msgbuf, bufsize);
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979 }
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980 if (addcleanup(p, freelist, cleanup_buffer)) {
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981 return converterr(
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982 "(cleanup problem)",
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983 arg, msgbuf, bufsize);
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984 }
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985 format++;
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986 } else if (*format == '#') { /* any buffer-like object */
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987 void **p = (void **)va_arg(*p_va, char **);
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988 FETCH_SIZE;
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989
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990 if (arg == Py_None) {
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991 *p = 0;
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992 STORE_SIZE(0);
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993 }
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994 else if (PyUnicode_Check(arg)) {
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995 uarg = UNICODE_DEFAULT_ENCODING(arg);
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996 if (uarg == NULL)
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997 return converterr(CONV_UNICODE,
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998 arg, msgbuf, bufsize);
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999 *p = PyBytes_AS_STRING(uarg);
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1000 STORE_SIZE(PyBytes_GET_SIZE(uarg));
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1001 }
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1002 else { /* any buffer-like object */
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1003 /* XXX Really? */
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1004 char *buf;
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1005 Py_ssize_t count = convertbuffer(arg, p, &buf);
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1006 if (count < 0)
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1007 return converterr(buf, arg, msgbuf, bufsize);
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1008 STORE_SIZE(count);
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1009 }
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1010 format++;
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1011 } else {
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1012 char **p = va_arg(*p_va, char **);
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1013 uarg = NULL;
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1014
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1015 if (arg == Py_None)
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1016 *p = 0;
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1017 else if (PyBytes_Check(arg)) {
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1018 /* Enable null byte check below */
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1019 uarg = arg;
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1020 *p = PyBytes_AS_STRING(arg);
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1021 }
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1022 else if (PyUnicode_Check(arg)) {
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1023 uarg = UNICODE_DEFAULT_ENCODING(arg);
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1024 if (uarg == NULL)
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1025 return converterr(CONV_UNICODE,
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1026 arg, msgbuf, bufsize);
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1027 *p = PyBytes_AS_STRING(uarg);
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1028 }
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1029 else
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1030 return converterr("string or None",
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1031 arg, msgbuf, bufsize);
61972
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Victor Stinner <victor.stinner@haypocalc.com>
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1032 if (*p != NULL && uarg != NULL &&
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1033 (Py_ssize_t) strlen(*p) != PyBytes_GET_SIZE(uarg))
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1034 return converterr(
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1035 "string without null bytes or None",
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1036 arg, msgbuf, bufsize);
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1037 }
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1038 break;
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1039 }
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1040
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1041 case 'Z': {/* unicode, may be NULL (None) */
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1042 if (*format == '#') { /* any buffer-like object */
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1043 Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **);
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1044 FETCH_SIZE;
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1045
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1046 if (arg == Py_None) {
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1047 *p = 0;
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1048 STORE_SIZE(0);
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1049 }
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1050 else if (PyUnicode_Check(arg)) {
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1051 *p = PyUnicode_AS_UNICODE(arg);
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1052 STORE_SIZE(PyUnicode_GET_SIZE(arg));
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1053 }
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1054 else
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1055 return converterr("str or None", arg, msgbuf, bufsize);
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1056 format++;
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1057 } else {
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1058 Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **);
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1059
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1060 if (arg == Py_None)
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1061 *p = 0;
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1062 else if (PyUnicode_Check(arg))
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1063 *p = PyUnicode_AS_UNICODE(arg);
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1064 else
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1065 return converterr("str or None", arg, msgbuf, bufsize);
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1066 }
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1067 break;
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1068 }
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1069
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1070 case 'e': {/* encoded string */
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1071 char **buffer;
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1072 const char *encoding;
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1073 PyObject *s;
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1074 int recode_strings;
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1075 Py_ssize_t size;
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1076 const char *ptr;
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1077
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1078 /* Get 'e' parameter: the encoding name */
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1079 encoding = (const char *)va_arg(*p_va, const char *);
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1080 if (encoding == NULL)
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1081 encoding = PyUnicode_GetDefaultEncoding();
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1082
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1083 /* Get output buffer parameter:
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1084 's' (recode all objects via Unicode) or
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1085 't' (only recode non-string objects)
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1086 */
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1087 if (*format == 's')
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1088 recode_strings = 1;
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1089 else if (*format == 't')
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1090 recode_strings = 0;
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1091 else
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1092 return converterr(
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1093 "(unknown parser marker combination)",
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1094 arg, msgbuf, bufsize);
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1095 buffer = (char **)va_arg(*p_va, char **);
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1096 format++;
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1097 if (buffer == NULL)
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1098 return converterr("(buffer is NULL)",
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1099 arg, msgbuf, bufsize);
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1100
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1101 /* Encode object */
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1102 if (!recode_strings &&
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1103 (PyBytes_Check(arg) || PyByteArray_Check(arg))) {
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1104 s = arg;
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1105 Py_INCREF(s);
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1106 if (PyObject_AsCharBuffer(s, &ptr, &size) < 0)
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1107 return converterr("(AsCharBuffer failed)",
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1108 arg, msgbuf, bufsize);
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1109 }
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1110 else {
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1111 PyObject *u;
19343
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1112
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1113 /* Convert object to Unicode */
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1114 u = PyUnicode_FromObject(arg);
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1115 if (u == NULL)
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1116 return converterr(
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1117 "string or unicode or text buffer",
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1118 arg, msgbuf, bufsize);
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1119
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1120 /* Encode object; use default error handling */
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1121 s = PyUnicode_AsEncodedString(u,
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1122 encoding,
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1123 NULL);
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1124 Py_DECREF(u);
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1125 if (s == NULL)
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1126 return converterr("(encoding failed)",
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1127 arg, msgbuf, bufsize);
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1128 if (!PyBytes_Check(s)) {
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1129 Py_DECREF(s);
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1130 return converterr(
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1131 "(encoder failed to return bytes)",
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1132 arg, msgbuf, bufsize);
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1133 }
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1134 size = PyBytes_GET_SIZE(s);
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1135 ptr = PyBytes_AS_STRING(s);
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1136 if (ptr == NULL)
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1137 ptr = "";
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1138 }
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1139
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1140 /* Write output; output is guaranteed to be 0-terminated */
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1141 if (*format == '#') {
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1142 /* Using buffer length parameter '#':
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1143
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1144 - if *buffer is NULL, a new buffer of the
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1145 needed size is allocated and the data
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1146 copied into it; *buffer is updated to point
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1147 to the new buffer; the caller is
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1148 responsible for PyMem_Free()ing it after
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1149 usage
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1150
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1151 - if *buffer is not NULL, the data is
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1152 copied to *buffer; *buffer_len has to be
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1153 set to the size of the buffer on input;
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1154 buffer overflow is signalled with an error;
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1155 buffer has to provide enough room for the
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1156 encoded string plus the trailing 0-byte
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1157
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1158 - in both cases, *buffer_len is updated to
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1159 the size of the buffer /excluding/ the
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1160 trailing 0-byte
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1161
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1162 */
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1163 FETCH_SIZE;
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1164
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1165 format++;
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1166 if (q == NULL && q2 == NULL) {
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1167 Py_DECREF(s);
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1168 return converterr(
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1169 "(buffer_len is NULL)",
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1170 arg, msgbuf, bufsize);
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1171 }
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1172 if (*buffer == NULL) {
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1173 *buffer = PyMem_NEW(char, size + 1);
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1174 if (*buffer == NULL) {
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1175 Py_DECREF(s);
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62149
diff changeset
1176 PyErr_NoMemory();
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1177 return converterr(
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1178 "(memory error)",
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1179 arg, msgbuf, bufsize);
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1180 }
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1181 if (addcleanup(*buffer, freelist, cleanup_ptr)) {
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1182 Py_DECREF(s);
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1183 return converterr(
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1184 "(cleanup problem)",
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1185 arg, msgbuf, bufsize);
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1186 }
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1187 } else {
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1188 if (size + 1 > BUFFER_LEN) {
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1189 Py_DECREF(s);
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1190 return converterr(
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1191 "(buffer overflow)",
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1192 arg, msgbuf, bufsize);
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1193 }
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1194 }
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1195 memcpy(*buffer, ptr, size+1);
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1196 STORE_SIZE(size);
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1197 } else {
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1198 /* Using a 0-terminated buffer:
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1199
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1200 - the encoded string has to be 0-terminated
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1201 for this variant to work; if it is not, an
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1202 error raised
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1203
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1204 - a new buffer of the needed size is
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1205 allocated and the data copied into it;
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1206 *buffer is updated to point to the new
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1207 buffer; the caller is responsible for
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1208 PyMem_Free()ing it after usage
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1209
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1210 */
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1211 if ((Py_ssize_t)strlen(ptr) != size) {
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1212 Py_DECREF(s);
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1213 return converterr(
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1214 "encoded string without NULL bytes",
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1215 arg, msgbuf, bufsize);
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1216 }
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1217 *buffer = PyMem_NEW(char, size + 1);
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1218 if (*buffer == NULL) {
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1219 Py_DECREF(s);
62151
c3f2ed4d8e65 convertsimple(): call PyErr_NoMemory() on PyMem_NEW() failure
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62149
diff changeset
1220 PyErr_NoMemory();
61466
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1221 return converterr("(memory error)",
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1222 arg, msgbuf, bufsize);
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1223 }
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1224 if (addcleanup(*buffer, freelist, cleanup_ptr)) {
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1225 Py_DECREF(s);
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1226 return converterr("(cleanup problem)",
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1227 arg, msgbuf, bufsize);
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1228 }
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1229 memcpy(*buffer, ptr, size+1);
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1230 }
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1231 Py_DECREF(s);
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1232 break;
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1233 }
12570
3dbe41380266 Brian Hooper <brian_takashi@hotmail.com>:
Fred Drake <fdrake@acm.org>
parents: 12510
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1234
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1235 case 'u': {/* raw unicode buffer (Py_UNICODE *) */
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1236 Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **);
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1237 if (!PyUnicode_Check(arg))
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1238 return converterr("str", arg, msgbuf, bufsize);
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1239 *p = PyUnicode_AS_UNICODE(arg);
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diff changeset
1240 if (*format == '#') { /* store pointer and size */
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diff changeset
1241 FETCH_SIZE;
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1242 STORE_SIZE(PyUnicode_GET_SIZE(arg));
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1243 format++;
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1244 }
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1245 break;
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1246 }
12570
3dbe41380266 Brian Hooper <brian_takashi@hotmail.com>:
Fred Drake <fdrake@acm.org>
parents: 12510
diff changeset
1247
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1248 case 'S': { /* PyBytes object */
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1249 PyObject **p = va_arg(*p_va, PyObject **);
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1250 if (PyBytes_Check(arg))
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1251 *p = arg;
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1252 else
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1253 return converterr("bytes", arg, msgbuf, bufsize);
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1254 break;
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1255 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1256
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diff changeset
1257 case 'Y': { /* PyByteArray object */
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1258 PyObject **p = va_arg(*p_va, PyObject **);
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1259 if (PyByteArray_Check(arg))
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1260 *p = arg;
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1261 else
62197
2cfe15b3cdf5 PyArg_Parse*("Z#") raises an error for unknown type
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62151
diff changeset
1262 return converterr("bytearray", arg, msgbuf, bufsize);
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1263 break;
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1264 }
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Guido van Rossum <guido@python.org>
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1265
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1266 case 'U': { /* PyUnicode object */
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1267 PyObject **p = va_arg(*p_va, PyObject **);
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1268 if (PyUnicode_Check(arg))
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1269 *p = arg;
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1270 else
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1271 return converterr("str", arg, msgbuf, bufsize);
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1272 break;
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1273 }
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diff changeset
1274
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1275 case 'O': { /* object */
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1276 PyTypeObject *type;
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1277 PyObject **p;
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1278 if (*format == '!') {
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1279 type = va_arg(*p_va, PyTypeObject*);
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1280 p = va_arg(*p_va, PyObject **);
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1281 format++;
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1282 if (PyType_IsSubtype(arg->ob_type, type))
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1283 *p = arg;
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1284 else
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1285 return converterr(type->tp_name, arg, msgbuf, bufsize);
8358
da4bdceeaad7 Another veeeeeery old patch...
Guido van Rossum <guido@python.org>
parents: 7982
diff changeset
1286
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1287 }
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1288 else if (*format == '&') {
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diff changeset
1289 typedef int (*converter)(PyObject *, void *);
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1290 converter convert = va_arg(*p_va, converter);
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1291 void *addr = va_arg(*p_va, void *);
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1292 int res;
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1293 format++;
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1294 if (! (res = (*convert)(arg, addr)))
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1295 return converterr("(unspecified)",
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1296 arg, msgbuf, bufsize);
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1297 if (res == Py_CLEANUP_SUPPORTED &&
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1298 addcleanup_convert(addr, freelist, convert) == -1)
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1299 return converterr("(cleanup problem)",
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1300 arg, msgbuf, bufsize);
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1301 }
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1302 else {
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1303 p = va_arg(*p_va, PyObject **);
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1304 *p = arg;
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1305 }
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1306 break;
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1307 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
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parents: 43651
diff changeset
1308
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
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diff changeset
1309
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diff changeset
1310 case 'w': { /* memory buffer, read-write access */
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diff changeset
1311 void **p = va_arg(*p_va, void **);
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diff changeset
1312 PyBufferProcs *pb = arg->ob_type->tp_as_buffer;
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1313 Py_ssize_t count;
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diff changeset
1314 int temp=-1;
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diff changeset
1315 Py_buffer view;
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Guido van Rossum <guido@python.org>
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diff changeset
1316
61466
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diff changeset
1317 if (pb && pb->bf_releasebuffer && *format != '*')
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diff changeset
1318 /* Buffer must be released, yet caller does not use
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diff changeset
1319 the Py_buffer protocol. */
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diff changeset
1320 return converterr("pinned buffer", arg, msgbuf, bufsize);
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diff changeset
1321
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diff changeset
1322
61466
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diff changeset
1323 if (pb && pb->bf_getbuffer && *format == '*') {
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diff changeset
1324 /* Caller is interested in Py_buffer, and the object
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diff changeset
1325 supports it directly. */
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1326 format++;
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diff changeset
1327 if (PyObject_GetBuffer(arg, (Py_buffer*)p, PyBUF_WRITABLE) < 0) {
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diff changeset
1328 PyErr_Clear();
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1329 return converterr("read-write buffer", arg, msgbuf, bufsize);
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1330 }
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diff changeset
1331 if (addcleanup(p, freelist, cleanup_buffer)) {
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diff changeset
1332 return converterr(
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1333 "(cleanup problem)",
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1334 arg, msgbuf, bufsize);
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1335 }
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1336 if (!PyBuffer_IsContiguous((Py_buffer*)p, 'C'))
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diff changeset
1337 return converterr("contiguous buffer", arg, msgbuf, bufsize);
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diff changeset
1338 break;
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1339 }
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diff changeset
1340
61466
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diff changeset
1341 /* Here we have processed w*, only w and w# remain. */
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diff changeset
1342 if (pb == NULL ||
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1343 pb->bf_getbuffer == NULL ||
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diff changeset
1344 ((temp = PyObject_GetBuffer(arg, &view,
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1345 PyBUF_SIMPLE)) != 0) ||
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diff changeset
1346 view.readonly == 1) {
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1347 if (temp==0) {
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1348 PyBuffer_Release(&view);
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1349 }
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1350 return converterr("single-segment read-write buffer",
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1351 arg, msgbuf, bufsize);
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1352 }
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diff changeset
1353
61466
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1354 if ((count = view.len) < 0)
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1355 return converterr("(unspecified)", arg, msgbuf, bufsize);
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1356 *p = view.buf;
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1357 if (*format == '#') {
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1358 FETCH_SIZE;
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1359 STORE_SIZE(count);
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diff changeset
1360 format++;
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1361 }
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1362 break;
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1363 }
43555
8e72dacf7f3a Eliminate use of PyBUF_CHARACTER flag which is no longer part of the buffer interface. Fix up array module to export the correct format for wide-builds.
Travis E. Oliphant <oliphant@enthought.com>
parents: 43423
diff changeset
1364
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diff changeset
1365 /*TEO: This can be eliminated --- here only for backward
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1366 compatibility */
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diff changeset
1367 case 't': { /* 8-bit character buffer, read-only access */
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diff changeset
1368 char **p = va_arg(*p_va, char **);
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diff changeset
1369 PyBufferProcs *pb = arg->ob_type->tp_as_buffer;
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diff changeset
1370 Py_ssize_t count;
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1371 Py_buffer view;
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diff changeset
1372
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1373 if (*format++ != '#')
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diff changeset
1374 return converterr(
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diff changeset
1375 "invalid use of 't' format character",
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diff changeset
1376 arg, msgbuf, bufsize);
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diff changeset
1377 if (pb == NULL || pb->bf_getbuffer == NULL)
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diff changeset
1378 return converterr(
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diff changeset
1379 "bytes or read-only character buffer",
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diff changeset
1380 arg, msgbuf, bufsize);
9306
79439e4e9976 Implement new format character 't#'. This is like s#, accepting an
Guido van Rossum <guido@python.org>
parents: 9044
diff changeset
1381
61466
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diff changeset
1382 if (PyObject_GetBuffer(arg, &view, PyBUF_SIMPLE) != 0)
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diff changeset
1383 return converterr("string or single-segment read-only buffer",
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diff changeset
1384 arg, msgbuf, bufsize);
20371
8ef3e95182c3 Undo part of 2.59: 't' case of convertsimple() should not use convertbuffer().
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 20357
diff changeset
1385
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1386 count = view.len;
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1387 *p = view.buf;
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1388 if (pb->bf_releasebuffer)
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1389 return converterr(
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diff changeset
1390 "string or pinned buffer",
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diff changeset
1391 arg, msgbuf, bufsize);
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diff changeset
1392
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diff changeset
1393 PyBuffer_Release(&view);
48880
de6fb9f34513 Fix #3651 various memory leaks when using the buffer interface
Benjamin Peterson <benjamin@python.org>
parents: 48848
diff changeset
1394
61466
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1395 if (count < 0)
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1396 return converterr("(unspecified)", arg, msgbuf, bufsize);
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diff changeset
1397 {
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1398 FETCH_SIZE;
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diff changeset
1399 STORE_SIZE(count);
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1400 }
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1401 break;
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1402 }
9306
79439e4e9976 Implement new format character 't#'. This is like s#, accepting an
Guido van Rossum <guido@python.org>
parents: 9044
diff changeset
1403
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diff changeset
1404 default:
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1405 return converterr("impossible<bad format char>", arg, msgbuf, bufsize);
43777
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diff changeset
1406
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1407 }
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diff changeset
1408
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1409 *p_format = format;
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1410 return NULL;
1913
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
Guido van Rossum <guido@python.org>
parents:
diff changeset
1411 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1412
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1413 static Py_ssize_t
20629
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1414 convertbuffer(PyObject *arg, void **p, char **errmsg)
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1415 {
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1416 PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer;
61466
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1417 Py_ssize_t count;
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1418 Py_buffer view;
42665
85c22b4d4455 Merged in py3k-buffer branch to main line. All objects now use the buffer protocol in PEP 3118.
Travis E. Oliphant <oliphant@enthought.com>
parents: 42139
diff changeset
1419
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1420 *errmsg = NULL;
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1421 *p = NULL;
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1422 if (pb == NULL ||
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1423 pb->bf_getbuffer == NULL ||
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1424 pb->bf_releasebuffer != NULL) {
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1425 *errmsg = "bytes or read-only buffer";
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1426 return -1;
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1427 }
42665
85c22b4d4455 Merged in py3k-buffer branch to main line. All objects now use the buffer protocol in PEP 3118.
Travis E. Oliphant <oliphant@enthought.com>
parents: 42139
diff changeset
1428
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1429 if (PyObject_GetBuffer(arg, &view, PyBUF_SIMPLE) != 0) {
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1430 *errmsg = "bytes or single-segment read-only buffer";
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1431 return -1;
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1432 }
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1433 count = view.len;
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1434 *p = view.buf;
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1435 PyBuffer_Release(&view);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1436 return count;
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1437 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1438
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1439 /* XXX for 3.x, getbuffer and convertbuffer can probably
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1440 be merged again. */
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1441 static int
48848
5c75a33ef5b2 Merged revisions 66006 via svnmerge from
Neal Norwitz <nnorwitz@gmail.com>
parents: 48683
diff changeset
1442 getbuffer(PyObject *arg, Py_buffer *view, char **errmsg)
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1443 {
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1444 PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1445 if (pb == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1446 *errmsg = "bytes or buffer";
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1447 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1448 }
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1449 if (pb->bf_getbuffer == NULL) {
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1450 *errmsg = "convertible to a buffer";
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1451 return -1;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1452 }
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1453 if (PyObject_GetBuffer(arg, view, 0) < 0) {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1454 *errmsg = "convertible to a buffer";
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1455 return -1;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1456 }
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1457 if (!PyBuffer_IsContiguous(view, 'C')) {
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1458 *errmsg = "contiguous buffer";
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1459 return -1;
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1460 }
61466
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1461 return 0;
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1462 }
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1463
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1464 /* Support for keyword arguments donated by
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1465 Geoff Philbrick <philbric@delphi.hks.com> */
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1466
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
parents: 20710
diff changeset
1467 /* Return false (0) for error, else true. */
20629
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1468 int
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1469 PyArg_ParseTupleAndKeywords(PyObject *args,
61466
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1470 PyObject *keywords,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1471 const char *format,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1472 char **kwlist, ...)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1473 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1474 int retval;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1475 va_list va;
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1476
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1477 if ((args == NULL || !PyTuple_Check(args)) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1478 (keywords != NULL && !PyDict_Check(keywords)) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1479 format == NULL ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1480 kwlist == NULL)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1481 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1482 PyErr_BadInternalCall();
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1483 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1484 }
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1485
61466
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1486 va_start(va, kwlist);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1487 retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1488 va_end(va);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1489 return retval;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1490 }
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1491
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1492 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1493 _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args,
61466
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diff changeset
1494 PyObject *keywords,
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parents: 60931
diff changeset
1495 const char *format,
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diff changeset
1496 char **kwlist, ...)
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7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1497 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1498 int retval;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1499 va_list va;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1500
61466
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parents: 60931
diff changeset
1501 if ((args == NULL || !PyTuple_Check(args)) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1502 (keywords != NULL && !PyDict_Check(keywords)) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1503 format == NULL ||
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parents: 60931
diff changeset
1504 kwlist == NULL)
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diff changeset
1505 {
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parents: 60931
diff changeset
1506 PyErr_BadInternalCall();
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1507 return 0;
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diff changeset
1508 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1509
61466
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1510 va_start(va, kwlist);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1511 retval = vgetargskeywords(args, keywords, format,
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diff changeset
1512 kwlist, &va, FLAG_SIZE_T);
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diff changeset
1513 va_end(va);
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1514 return retval;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1515 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1516
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1517
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1518 int
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1519 PyArg_VaParseTupleAndKeywords(PyObject *args,
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1520 PyObject *keywords,
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1521 const char *format,
36675
dba6494735d0 Revert backwards-incompatible const changes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36625
diff changeset
1522 char **kwlist, va_list va)
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1523 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1524 int retval;
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parents: 60931
diff changeset
1525 va_list lva;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1526
61466
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parents: 60931
diff changeset
1527 if ((args == NULL || !PyTuple_Check(args)) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1528 (keywords != NULL && !PyDict_Check(keywords)) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1529 format == NULL ||
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1530 kwlist == NULL)
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parents: 60931
diff changeset
1531 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1532 PyErr_BadInternalCall();
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1533 return 0;
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parents: 60931
diff changeset
1534 }
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1535
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1536 #ifdef VA_LIST_IS_ARRAY
61466
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diff changeset
1537 memcpy(lva, va, sizeof(va_list));
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1538 #else
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1539 #ifdef __va_copy
61466
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diff changeset
1540 __va_copy(lva, va);
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1541 #else
61466
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diff changeset
1542 lva = va;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1543 #endif
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1544 #endif
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1545
61466
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diff changeset
1546 retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0);
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diff changeset
1547 return retval;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1548 }
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1549
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1550 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1551 _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args,
61466
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diff changeset
1552 PyObject *keywords,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1553 const char *format,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1554 char **kwlist, va_list va)
36501
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diff changeset
1555 {
61466
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diff changeset
1556 int retval;
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diff changeset
1557 va_list lva;
36501
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diff changeset
1558
61466
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diff changeset
1559 if ((args == NULL || !PyTuple_Check(args)) ||
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diff changeset
1560 (keywords != NULL && !PyDict_Check(keywords)) ||
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parents: 60931
diff changeset
1561 format == NULL ||
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parents: 60931
diff changeset
1562 kwlist == NULL)
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diff changeset
1563 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1564 PyErr_BadInternalCall();
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diff changeset
1565 return 0;
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diff changeset
1566 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1567
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1568 #ifdef VA_LIST_IS_ARRAY
61466
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parents: 60931
diff changeset
1569 memcpy(lva, va, sizeof(va_list));
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1570 #else
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1571 #ifdef __va_copy
61466
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diff changeset
1572 __va_copy(lva, va);
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1573 #else
61466
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diff changeset
1574 lva = va;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1575 #endif
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1576 #endif
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1577
61466
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parents: 60931
diff changeset
1578 retval = vgetargskeywords(args, keywords, format,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1579 kwlist, &lva, FLAG_SIZE_T);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1580 return retval;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1581 }
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1582
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1583 int
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1584 PyArg_ValidateKeywordArguments(PyObject *kwargs)
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1585 {
61466
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parents: 60931
diff changeset
1586 if (!PyDict_CheckExact(kwargs)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1587 PyErr_BadInternalCall();
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1588 return 0;
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parents: 60931
diff changeset
1589 }
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diff changeset
1590 if (!_PyDict_HasOnlyStringKeys(kwargs)) {
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parents: 60931
diff changeset
1591 PyErr_SetString(PyExc_TypeError,
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diff changeset
1592 "keyword arguments must be strings");
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diff changeset
1593 return 0;
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diff changeset
1594 }
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diff changeset
1595 return 1;
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1596 }
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1597
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Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
1598 #define IS_END_OF_FORMAT(c) (c == '\0' || c == ';' || c == ':')
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1599
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1600 static int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1601 vgetargskeywords(PyObject *args, PyObject *keywords, const char *format,
61466
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diff changeset
1602 char **kwlist, va_list *p_va, int flags)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1603 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1604 char msgbuf[512];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1605 int levels[32];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1606 const char *fname, *msg, *custom_msg, *keyword;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1607 int min = INT_MAX;
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parents: 60931
diff changeset
1608 int i, len, nargs, nkeywords;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1609 PyObject *freelist = NULL, *current_arg;
20708
e912b683ed3e vgetargskeywords(): remove test that can't succeed. Not a bugfix, just
Tim Peters <tim.peters@gmail.com>
parents: 20632
diff changeset
1610
61466
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parents: 60931
diff changeset
1611 assert(args != NULL && PyTuple_Check(args));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1612 assert(keywords == NULL || PyDict_Check(keywords));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1613 assert(format != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1614 assert(kwlist != NULL);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1615 assert(p_va != NULL);
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1616
61466
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diff changeset
1617 /* grab the function name or custom error msg first (mutually exclusive) */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1618 fname = strchr(format, ':');
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1619 if (fname) {
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parents: 60931
diff changeset
1620 fname++;
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parents: 60931
diff changeset
1621 custom_msg = NULL;
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parents: 60931
diff changeset
1622 }
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parents: 60931
diff changeset
1623 else {
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parents: 60931
diff changeset
1624 custom_msg = strchr(format,';');
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parents: 60931
diff changeset
1625 if (custom_msg)
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parents: 60931
diff changeset
1626 custom_msg++;
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parents: 60931
diff changeset
1627 }
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parents: 45534
diff changeset
1628
61466
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diff changeset
1629 /* scan kwlist and get greatest possible nbr of args */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1630 for (len=0; kwlist[len]; len++)
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parents: 60931
diff changeset
1631 continue;
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
parents: 20710
diff changeset
1632
61466
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diff changeset
1633 nargs = PyTuple_GET_SIZE(args);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1634 nkeywords = (keywords == NULL) ? 0 : PyDict_Size(keywords);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1635 if (nargs + nkeywords > len) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1636 PyErr_Format(PyExc_TypeError, "%s%s takes at most %d "
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1637 "argument%s (%d given)",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1638 (fname == NULL) ? "function" : fname,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1639 (fname == NULL) ? "" : "()",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1640 len,
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parents: 60931
diff changeset
1641 (len == 1) ? "" : "s",
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parents: 60931
diff changeset
1642 nargs + nkeywords);
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parents: 60931
diff changeset
1643 return 0;
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parents: 60931
diff changeset
1644 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
parents: 20722
diff changeset
1645
61466
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diff changeset
1646 /* convert tuple args and keyword args in same loop, using kwlist to drive process */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1647 for (i = 0; i < len; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1648 keyword = kwlist[i];
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parents: 60931
diff changeset
1649 if (*format == '|') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1650 min = i;
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parents: 60931
diff changeset
1651 format++;
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parents: 60931
diff changeset
1652 }
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parents: 60931
diff changeset
1653 if (IS_END_OF_FORMAT(*format)) {
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parents: 60931
diff changeset
1654 PyErr_Format(PyExc_RuntimeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1655 "More keyword list entries (%d) than "
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parents: 60931
diff changeset
1656 "format specifiers (%d)", len, i);
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parents: 60931
diff changeset
1657 return cleanreturn(0, freelist);
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parents: 60931
diff changeset
1658 }
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parents: 60931
diff changeset
1659 current_arg = NULL;
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parents: 60931
diff changeset
1660 if (nkeywords) {
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parents: 60931
diff changeset
1661 current_arg = PyDict_GetItemString(keywords, keyword);
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diff changeset
1662 }
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diff changeset
1663 if (current_arg) {
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parents: 60931
diff changeset
1664 --nkeywords;
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diff changeset
1665 if (i < nargs) {
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diff changeset
1666 /* arg present in tuple and in dict */
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parents: 60931
diff changeset
1667 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1668 "Argument given by name ('%s') "
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parents: 60931
diff changeset
1669 "and position (%d)",
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diff changeset
1670 keyword, i+1);
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diff changeset
1671 return cleanreturn(0, freelist);
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diff changeset
1672 }
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diff changeset
1673 }
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diff changeset
1674 else if (nkeywords && PyErr_Occurred())
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diff changeset
1675 return cleanreturn(0, freelist);
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diff changeset
1676 else if (i < nargs)
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diff changeset
1677 current_arg = PyTuple_GET_ITEM(args, i);
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diff changeset
1678
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diff changeset
1679 if (current_arg) {
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diff changeset
1680 msg = convertitem(current_arg, &format, p_va, flags,
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diff changeset
1681 levels, msgbuf, sizeof(msgbuf), &freelist);
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diff changeset
1682 if (msg) {
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1683 seterror(i+1, msg, levels, fname, custom_msg);
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diff changeset
1684 return cleanreturn(0, freelist);
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1685 }
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1686 continue;
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1687 }
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1688
61466
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1689 if (i < min) {
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1690 PyErr_Format(PyExc_TypeError, "Required argument "
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diff changeset
1691 "'%s' (pos %d) not found",
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diff changeset
1692 keyword, i+1);
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1693 return cleanreturn(0, freelist);
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1694 }
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1695 /* current code reports success when all required args
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parents: 60931
diff changeset
1696 * fulfilled and no keyword args left, with no further
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1697 * validation. XXX Maybe skip this in debug build ?
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1698 */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1699 if (!nkeywords)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1700 return cleanreturn(1, freelist);
45548
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
1701
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1702 /* We are into optional args, skip thru to any remaining
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1703 * keyword args */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1704 msg = skipitem(&format, p_va, flags);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1705 if (msg) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1706 PyErr_Format(PyExc_RuntimeError, "%s: '%s'", msg,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1707 format);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1708 return cleanreturn(0, freelist);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1709 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1710 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1711
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1712 if (!IS_END_OF_FORMAT(*format) && *format != '|') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1713 PyErr_Format(PyExc_RuntimeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1714 "more argument specifiers than keyword list entries "
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1715 "(remaining format:'%s')", format);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1716 return cleanreturn(0, freelist);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1717 }
20715
5e6f8187bd48 vgetargskeywords:
Tim Peters <tim.peters@gmail.com>
parents: 20714
diff changeset
1718
61466
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diff changeset
1719 /* make sure there are no extraneous keyword arguments */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1720 if (nkeywords > 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1721 PyObject *key, *value;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1722 Py_ssize_t pos = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1723 while (PyDict_Next(keywords, &pos, &key, &value)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1724 int match = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1725 char *ks;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1726 if (!PyUnicode_Check(key)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1727 PyErr_SetString(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1728 "keywords must be strings");
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parents: 60931
diff changeset
1729 return cleanreturn(0, freelist);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1730 }
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1731 /* check that _PyUnicode_AsString() result is not NULL */
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1732 ks = _PyUnicode_AsString(key);
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1733 if (ks != NULL) {
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1734 for (i = 0; i < len; i++) {
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1735 if (!strcmp(ks, kwlist[i])) {
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1736 match = 1;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1737 break;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1738 }
61466
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parents: 60931
diff changeset
1739 }
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parents: 60931
diff changeset
1740 }
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diff changeset
1741 if (!match) {
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diff changeset
1742 PyErr_Format(PyExc_TypeError,
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1743 "'%U' is an invalid keyword "
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1744 "argument for this function",
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1745 key);
61466
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diff changeset
1746 return cleanreturn(0, freelist);
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diff changeset
1747 }
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diff changeset
1748 }
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parents: 60931
diff changeset
1749 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
parents: 20722
diff changeset
1750
61466
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1751 return cleanreturn(1, freelist);
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1752 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1753
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1754
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1755 static char *
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1756 skipitem(const char **p_format, va_list *p_va, int flags)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1757 {
61466
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diff changeset
1758 const char *format = *p_format;
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diff changeset
1759 char c = *format++;
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1760
61466
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diff changeset
1761 switch (c) {
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1762
61466
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diff changeset
1763 /* simple codes
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parents: 60931
diff changeset
1764 * The individual types (second arg of va_arg) are irrelevant */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1765
61466
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diff changeset
1766 case 'b': /* byte -- very short int */
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parents: 60931
diff changeset
1767 case 'B': /* byte as bitfield */
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diff changeset
1768 case 'h': /* short int */
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diff changeset
1769 case 'H': /* short int as bitfield */
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parents: 60931
diff changeset
1770 case 'i': /* int */
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parents: 60931
diff changeset
1771 case 'I': /* int sized bitfield */
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parents: 60931
diff changeset
1772 case 'l': /* long int */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1773 case 'k': /* long int sized bitfield */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1774 #ifdef HAVE_LONG_LONG
61466
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diff changeset
1775 case 'L': /* PY_LONG_LONG */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1776 case 'K': /* PY_LONG_LONG sized bitfield */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1777 #endif
61466
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parents: 60931
diff changeset
1778 case 'f': /* float */
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parents: 60931
diff changeset
1779 case 'd': /* double */
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parents: 60931
diff changeset
1780 case 'D': /* complex double */
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parents: 60931
diff changeset
1781 case 'c': /* char */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1782 case 'C': /* unicode char */
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parents: 60931
diff changeset
1783 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1784 (void) va_arg(*p_va, void *);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1785 break;
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diff changeset
1786 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1787
61466
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diff changeset
1788 case 'n': /* Py_ssize_t */
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diff changeset
1789 {
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diff changeset
1790 (void) va_arg(*p_va, Py_ssize_t *);
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diff changeset
1791 break;
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1792 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1793
61466
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diff changeset
1794 /* string codes */
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1795
61466
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diff changeset
1796 case 'e': /* string with encoding */
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diff changeset
1797 {
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diff changeset
1798 (void) va_arg(*p_va, const char *);
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parents: 60931
diff changeset
1799 if (!(*format == 's' || *format == 't'))
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parents: 60931
diff changeset
1800 /* after 'e', only 's' and 't' is allowed */
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parents: 60931
diff changeset
1801 goto err;
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diff changeset
1802 format++;
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parents: 60931
diff changeset
1803 /* explicit fallthrough to string cases */
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parents: 60931
diff changeset
1804 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1805
61466
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diff changeset
1806 case 's': /* string */
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diff changeset
1807 case 'z': /* string or None */
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diff changeset
1808 case 'y': /* bytes */
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diff changeset
1809 case 'u': /* unicode string */
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diff changeset
1810 case 't': /* buffer, read-only */
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diff changeset
1811 case 'w': /* buffer, read-write */
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parents: 60931
diff changeset
1812 {
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diff changeset
1813 (void) va_arg(*p_va, char **);
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parents: 60931
diff changeset
1814 if (*format == '#') {
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diff changeset
1815 if (flags & FLAG_SIZE_T)
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diff changeset
1816 (void) va_arg(*p_va, Py_ssize_t *);
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parents: 60931
diff changeset
1817 else
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diff changeset
1818 (void) va_arg(*p_va, int *);
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diff changeset
1819 format++;
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diff changeset
1820 } else if ((c == 's' || c == 'z' || c == 'y') && *format == '*') {
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diff changeset
1821 format++;
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diff changeset
1822 }
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1823 break;
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1824 }
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1825
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1826 /* object codes */
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1827
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1828 case 'S': /* string object */
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1829 case 'Y': /* string object */
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1830 case 'U': /* unicode string object */
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1831 {
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1832 (void) va_arg(*p_va, PyObject **);
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1833 break;
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1834 }
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1835
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1836 case 'O': /* object */
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1837 {
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1838 if (*format == '!') {
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1839 format++;
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1840 (void) va_arg(*p_va, PyTypeObject*);
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1841 (void) va_arg(*p_va, PyObject **);
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1842 }
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1843 else if (*format == '&') {
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1844 typedef int (*converter)(PyObject *, void *);
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1845 (void) va_arg(*p_va, converter);
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1846 (void) va_arg(*p_va, void *);
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1847 format++;
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1848 }
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1849 else {
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1850 (void) va_arg(*p_va, PyObject **);
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1851 }
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1852 break;
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1853 }
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1854
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1855 case '(': /* bypass tuple, not handled at all previously */
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1856 {
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1857 char *msg;
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1858 for (;;) {
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1859 if (*format==')')
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1860 break;
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1861 if (IS_END_OF_FORMAT(*format))
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1862 return "Unmatched left paren in format "
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1863 "string";
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1864 msg = skipitem(&format, p_va, flags);
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1865 if (msg)
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1866 return msg;
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1867 }
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1868 format++;
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1869 break;
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1870 }
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1871
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1872 case ')':
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1873 return "Unmatched right paren in format string";
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1874
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1875 default:
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1876 err:
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1877 return "impossible<bad format char>";
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Guido van Rossum <guido@python.org>
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1878
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1879 }
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1880
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1881 *p_format = format;
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1882 return NULL;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
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1883 }
20632
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Fred Drake <fdrake@acm.org>
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1884
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
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1885
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
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1886 int
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92ba72484ff3 Use Py_ssize_t for PyArg_UnpackTuple arguments.
Martin v. Löwis <martin@v.loewis.de>
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1887 PyArg_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t max, ...)
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1888 {
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1889 Py_ssize_t i, l;
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1890 PyObject **o;
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1891 va_list vargs;
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Fred Drake <fdrake@acm.org>
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1892
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
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1893 #ifdef HAVE_STDARG_PROTOTYPES
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1894 va_start(vargs, max);
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1895 #else
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1896 va_start(vargs);
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1897 #endif
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1898
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1899 assert(min >= 0);
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1900 assert(min <= max);
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1901 if (!PyTuple_Check(args)) {
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1902 PyErr_SetString(PyExc_SystemError,
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1903 "PyArg_UnpackTuple() argument list is not a tuple");
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1904 return 0;
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1905 }
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1906 l = PyTuple_GET_SIZE(args);
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1907 if (l < min) {
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1908 if (name != NULL)
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1909 PyErr_Format(
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1910 PyExc_TypeError,
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1911 "%s expected %s%zd arguments, got %zd",
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1912 name, (min == max ? "" : "at least "), min, l);
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1913 else
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1914 PyErr_Format(
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1915 PyExc_TypeError,
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1916 "unpacked tuple should have %s%zd elements,"
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1917 " but has %zd",
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1918 (min == max ? "" : "at least "), min, l);
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1919 va_end(vargs);
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1920 return 0;
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1921 }
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1922 if (l > max) {
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1923 if (name != NULL)
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1924 PyErr_Format(
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1925 PyExc_TypeError,
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1926 "%s expected %s%zd arguments, got %zd",
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1927 name, (min == max ? "" : "at most "), max, l);
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1928 else
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1929 PyErr_Format(
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1930 PyExc_TypeError,
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1931 "unpacked tuple should have %s%zd elements,"
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1932 " but has %zd",
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1933 (min == max ? "" : "at most "), max, l);
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1934 va_end(vargs);
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1935 return 0;
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1936 }
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1937 for (i = 0; i < l; i++) {
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1938 o = va_arg(vargs, PyObject **);
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1939 *o = PyTuple_GET_ITEM(args, i);
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1940 }
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1941 va_end(vargs);
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1942 return 1;
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1943 }
35449
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Georg Brandl <georg@python.org>
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1944
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
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1945
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diff changeset
1946 /* For type constructors that don't take keyword args
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diff changeset
1947 *
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1948 * Sets a TypeError and returns 0 if the kwds dict is
40450
cc992d75d5b3 Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
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diff changeset
1949 * not empty, returns 1 otherwise
35449
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Georg Brandl <georg@python.org>
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diff changeset
1950 */
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
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1951 int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
1952 _PyArg_NoKeywords(const char *funcname, PyObject *kw)
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1953 {
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1954 if (kw == NULL)
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1955 return 1;
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1956 if (!PyDict_CheckExact(kw)) {
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1957 PyErr_BadInternalCall();
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1958 return 0;
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1959 }
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1960 if (PyDict_Size(kw) == 0)
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1961 return 1;
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Guido van Rossum <guido@python.org>
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1962
61466
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1963 PyErr_Format(PyExc_TypeError, "%s does not take keyword arguments",
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1964 funcname);
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1965 return 0;
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Georg Brandl <georg@python.org>
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1966 }
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1967 #ifdef __cplusplus
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1968 };
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1969 #endif