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annotate Python/getargs.c @ 68102:e2f96bd29252

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Issue #8914: fix various warnings from the Clang static analyzer v254.
author Brett Cannon <bcannon@gmail.com>
date Tue, 22 Feb 2011 20:15:44 +0000
parents 98c8aa237fc1
children c7a936362281
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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3
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4 #include "Python.h"
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6 #include <ctype.h>
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7
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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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52
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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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58
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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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83
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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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89
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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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95
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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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108 Py_VA_COPY(lva, va);
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109
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110 return vgetargs1(args, format, &lva, 0);
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111 }
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113 int
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114 _PyArg_VaParse_SizeT(PyObject *args, char *format, va_list va)
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115 {
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116 va_list lva;
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117
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118 Py_VA_COPY(lva, va);
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119
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120 return vgetargs1(args, format, &lva, FLAG_SIZE_T);
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121 }
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124 /* Handle cleanup of allocated memory in case of exception */
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125
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126 #define GETARGS_CAPSULE_NAME_CLEANUP_PTR "getargs.cleanup_ptr"
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127 #define GETARGS_CAPSULE_NAME_CLEANUP_BUFFER "getargs.cleanup_buffer"
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128 #define GETARGS_CAPSULE_NAME_CLEANUP_CONVERT "getargs.cleanup_convert"
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129
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130 static void
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131 cleanup_ptr(PyObject *self)
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132 {
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133 void *ptr = PyCapsule_GetPointer(self, GETARGS_CAPSULE_NAME_CLEANUP_PTR);
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134 if (ptr) {
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135 PyMem_FREE(ptr);
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136 }
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137 }
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138
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139 static void
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140 cleanup_buffer(PyObject *self)
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141 {
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142 Py_buffer *ptr = (Py_buffer *)PyCapsule_GetPointer(self, GETARGS_CAPSULE_NAME_CLEANUP_BUFFER);
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143 if (ptr) {
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144 PyBuffer_Release(ptr);
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145 }
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146 }
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147
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148 static int
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149 addcleanup(void *ptr, PyObject **freelist, int is_buffer)
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150 {
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151 PyObject *cobj;
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152 const char *name;
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153 PyCapsule_Destructor destr;
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154
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155 if (is_buffer) {
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156 destr = cleanup_buffer;
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157 name = GETARGS_CAPSULE_NAME_CLEANUP_BUFFER;
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158 } else {
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159 destr = cleanup_ptr;
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160 name = GETARGS_CAPSULE_NAME_CLEANUP_PTR;
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161 }
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162
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163 if (!*freelist) {
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164 *freelist = PyList_New(0);
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165 if (!*freelist) {
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166 destr(ptr);
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167 return -1;
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168 }
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169 }
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170
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171 cobj = PyCapsule_New(ptr, name, destr);
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172 if (!cobj) {
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173 destr(ptr);
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174 return -1;
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175 }
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176 if (PyList_Append(*freelist, cobj)) {
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177 Py_DECREF(cobj);
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178 return -1;
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179 }
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180 Py_DECREF(cobj);
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181 return 0;
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182 }
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183
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184 static void
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185 cleanup_convert(PyObject *self)
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186 {
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187 typedef int (*destr_t)(PyObject *, void *);
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188 destr_t destr = (destr_t)PyCapsule_GetContext(self);
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189 void *ptr = PyCapsule_GetPointer(self,
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190 GETARGS_CAPSULE_NAME_CLEANUP_CONVERT);
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191 if (ptr && destr)
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192 destr(NULL, ptr);
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193 }
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194
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195 static int
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196 addcleanup_convert(void *ptr, PyObject **freelist, int (*destr)(PyObject*,void*))
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197 {
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198 PyObject *cobj;
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199 if (!*freelist) {
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200 *freelist = PyList_New(0);
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201 if (!*freelist) {
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202 destr(NULL, ptr);
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203 return -1;
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204 }
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205 }
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206 cobj = PyCapsule_New(ptr, GETARGS_CAPSULE_NAME_CLEANUP_CONVERT,
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207 cleanup_convert);
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208 if (!cobj) {
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209 destr(NULL, ptr);
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210 return -1;
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211 }
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212 if (PyCapsule_SetContext(cobj, destr) == -1) {
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213 /* This really should not happen. */
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214 Py_FatalError("capsule refused setting of context.");
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215 }
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216 if (PyList_Append(*freelist, cobj)) {
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217 Py_DECREF(cobj); /* This will also call destr. */
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218 return -1;
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219 }
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220 Py_DECREF(cobj);
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221 return 0;
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222 }
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223
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224 static int
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225 cleanreturn(int retval, PyObject *freelist)
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226 {
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227 if (freelist && retval != 0) {
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228 /* We were successful, reset the destructors so that they
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229 don't get called. */
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230 Py_ssize_t len = PyList_GET_SIZE(freelist), i;
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231 for (i = 0; i < len; i++)
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232 PyCapsule_SetDestructor(PyList_GET_ITEM(freelist, i), NULL);
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233 }
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234 Py_XDECREF(freelist);
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235 return retval;
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236 }
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237
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238
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239 static int
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240 vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags)
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241 {
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242 char msgbuf[256];
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243 int levels[32];
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244 const char *fname = NULL;
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245 const char *message = NULL;
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246 int min = -1;
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247 int max = 0;
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248 int level = 0;
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249 int endfmt = 0;
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250 const char *formatsave = format;
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251 Py_ssize_t i, len;
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252 char *msg;
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253 PyObject *freelist = NULL;
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254 int compat = flags & FLAG_COMPAT;
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255
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256 assert(compat || (args != (PyObject*)NULL));
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257 flags = flags & ~FLAG_COMPAT;
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258
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259 while (endfmt == 0) {
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260 int c = *format++;
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261 switch (c) {
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262 case '(':
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263 if (level == 0)
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264 max++;
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265 level++;
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266 if (level >= 30)
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267 Py_FatalError("too many tuple nesting levels "
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268 "in argument format string");
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269 break;
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270 case ')':
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271 if (level == 0)
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272 Py_FatalError("excess ')' in getargs format");
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273 else
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274 level--;
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275 break;
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276 case '\0':
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277 endfmt = 1;
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278 break;
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279 case ':':
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280 fname = format;
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281 endfmt = 1;
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282 break;
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283 case ';':
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284 message = format;
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285 endfmt = 1;
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286 break;
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287 default:
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288 if (level == 0) {
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289 if (c == 'O')
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290 max++;
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291 else if (isalpha(Py_CHARMASK(c))) {
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292 if (c != 'e') /* skip encoded */
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293 max++;
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294 } else if (c == '|')
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295 min = max;
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296 }
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297 break;
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298 }
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299 }
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300
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301 if (level != 0)
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302 Py_FatalError(/* '(' */ "missing ')' in getargs format");
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303
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304 if (min < 0)
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305 min = max;
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306
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307 format = formatsave;
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308
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309 if (compat) {
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310 if (max == 0) {
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311 if (args == NULL)
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312 return 1;
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313 PyOS_snprintf(msgbuf, sizeof(msgbuf),
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314 "%.200s%s takes no arguments",
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315 fname==NULL ? "function" : fname,
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316 fname==NULL ? "" : "()");
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317 PyErr_SetString(PyExc_TypeError, msgbuf);
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318 return 0;
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319 }
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320 else if (min == 1 && max == 1) {
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321 if (args == NULL) {
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322 PyOS_snprintf(msgbuf, sizeof(msgbuf),
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323 "%.200s%s takes at least one argument",
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324 fname==NULL ? "function" : fname,
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325 fname==NULL ? "" : "()");
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326 PyErr_SetString(PyExc_TypeError, msgbuf);
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327 return 0;
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328 }
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329 msg = convertitem(args, &format, p_va, flags, levels,
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330 msgbuf, sizeof(msgbuf), &freelist);
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331 if (msg == NULL)
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332 return cleanreturn(1, freelist);
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333 seterror(levels[0], msg, levels+1, fname, message);
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334 return cleanreturn(0, freelist);
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335 }
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336 else {
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337 PyErr_SetString(PyExc_SystemError,
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338 "old style getargs format uses new features");
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339 return 0;
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340 }
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341 }
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342
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343 if (!PyTuple_Check(args)) {
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344 PyErr_SetString(PyExc_SystemError,
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345 "new style getargs format but argument is not a tuple");
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346 return 0;
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347 }
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348
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349 len = PyTuple_GET_SIZE(args);
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350
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351 if (len < min || max < len) {
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352 if (message == NULL) {
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353 PyOS_snprintf(msgbuf, sizeof(msgbuf),
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354 "%.150s%s takes %s %d argument%s "
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355 "(%ld given)",
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356 fname==NULL ? "function" : fname,
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357 fname==NULL ? "" : "()",
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358 min==max ? "exactly"
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359 : len < min ? "at least" : "at most",
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360 len < min ? min : max,
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361 (len < min ? min : max) == 1 ? "" : "s",
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362 Py_SAFE_DOWNCAST(len, Py_ssize_t, long));
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363 message = msgbuf;
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364 }
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365 PyErr_SetString(PyExc_TypeError, message);
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366 return 0;
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367 }
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368
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369 for (i = 0; i < len; i++) {
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370 if (*format == '|')
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371 format++;
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372 msg = convertitem(PyTuple_GET_ITEM(args, i), &format, p_va,
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373 flags, levels, msgbuf,
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374 sizeof(msgbuf), &freelist);
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375 if (msg) {
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376 seterror(i+1, msg, levels, fname, msg);
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377 return cleanreturn(0, freelist);
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378 }
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379 }
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380
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381 if (*format != '\0' && !isalpha(Py_CHARMASK(*format)) &&
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382 *format != '(' &&
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383 *format != '|' && *format != ':' && *format != ';') {
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384 PyErr_Format(PyExc_SystemError,
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385 "bad format string: %.200s", formatsave);
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386 return cleanreturn(0, freelist);
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387 }
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388
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389 return cleanreturn(1, freelist);
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390 }
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391
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392
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393
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394 static void
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395 seterror(int iarg, const char *msg, int *levels, const char *fname,
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396 const char *message)
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397 {
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398 char buf[512];
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399 int i;
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400 char *p = buf;
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401
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402 if (PyErr_Occurred())
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403 return;
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404 else if (message == NULL) {
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405 if (fname != NULL) {
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406 PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname);
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407 p += strlen(p);
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408 }
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409 if (iarg != 0) {
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410 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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411 "argument %d", iarg);
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412 i = 0;
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413 p += strlen(p);
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414 while (levels[i] > 0 && i < 32 && (int)(p-buf) < 220) {
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415 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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416 ", item %d", levels[i]-1);
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417 p += strlen(p);
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418 i++;
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419 }
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420 }
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421 else {
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422 PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument");
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423 p += strlen(p);
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424 }
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425 PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg);
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426 message = buf;
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427 }
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428 PyErr_SetString(PyExc_TypeError, message);
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429 }
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430
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431
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432 /* Convert a tuple argument.
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433 On entry, *p_format points to the character _after_ the opening '('.
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434 On successful exit, *p_format points to the closing ')'.
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435 If successful:
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436 *p_format and *p_va are updated,
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437 *levels and *msgbuf are untouched,
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438 and NULL is returned.
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439 If the argument is invalid:
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440 *p_format is unchanged,
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441 *p_va is undefined,
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442 *levels is a 0-terminated list of item numbers,
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443 *msgbuf contains an error message, whose format is:
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444 "must be <typename1>, not <typename2>", where:
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445 <typename1> is the name of the expected type, and
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446 <typename2> is the name of the actual type,
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447 and msgbuf is returned.
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448 */
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449
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450 static char *
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451 converttuple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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452 int *levels, char *msgbuf, size_t bufsize, int toplevel,
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453 PyObject **freelist)
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454 {
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455 int level = 0;
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456 int n = 0;
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457 const char *format = *p_format;
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458 int i;
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459
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460 for (;;) {
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461 int c = *format++;
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462 if (c == '(') {
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463 if (level == 0)
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464 n++;
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465 level++;
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466 }
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467 else if (c == ')') {
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468 if (level == 0)
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469 break;
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470 level--;
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471 }
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472 else if (c == ':' || c == ';' || c == '\0')
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473 break;
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474 else if (level == 0 && isalpha(Py_CHARMASK(c)))
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475 n++;
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476 }
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477
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478 if (!PySequence_Check(arg) || PyBytes_Check(arg)) {
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479 levels[0] = 0;
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480 PyOS_snprintf(msgbuf, bufsize,
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481 toplevel ? "expected %d arguments, not %.50s" :
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482 "must be %d-item sequence, not %.50s",
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483 n,
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484 arg == Py_None ? "None" : arg->ob_type->tp_name);
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485 return msgbuf;
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486 }
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487
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488 if ((i = PySequence_Size(arg)) != n) {
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489 levels[0] = 0;
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490 PyOS_snprintf(msgbuf, bufsize,
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491 toplevel ? "expected %d arguments, not %d" :
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492 "must be sequence of length %d, not %d",
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493 n, i);
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494 return msgbuf;
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495 }
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496
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497 format = *p_format;
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498 for (i = 0; i < n; i++) {
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499 char *msg;
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500 PyObject *item;
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501 item = PySequence_GetItem(arg, i);
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502 if (item == NULL) {
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503 PyErr_Clear();
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504 levels[0] = i+1;
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505 levels[1] = 0;
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506 strncpy(msgbuf, "is not retrievable", bufsize);
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507 return msgbuf;
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508 }
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509 msg = convertitem(item, &format, p_va, flags, levels+1,
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510 msgbuf, bufsize, freelist);
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511 /* PySequence_GetItem calls tp->sq_item, which INCREFs */
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512 Py_XDECREF(item);
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513 if (msg != NULL) {
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514 levels[0] = i+1;
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515 return msg;
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516 }
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517 }
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518
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519 *p_format = format;
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520 return NULL;
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521 }
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522
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523
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524 /* Convert a single item. */
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525
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526 static char *
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527 convertitem(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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528 int *levels, char *msgbuf, size_t bufsize, PyObject **freelist)
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529 {
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530 char *msg;
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531 const char *format = *p_format;
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532
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533 if (*format == '(' /* ')' */) {
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534 format++;
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535 msg = converttuple(arg, &format, p_va, flags, levels, msgbuf,
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536 bufsize, 0, freelist);
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537 if (msg == NULL)
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538 format++;
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539 }
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540 else {
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541 msg = convertsimple(arg, &format, p_va, flags,
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542 msgbuf, bufsize, freelist);
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543 if (msg != NULL)
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544 levels[0] = 0;
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545 }
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546 if (msg == NULL)
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547 *p_format = format;
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548 return msg;
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549 }
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550
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551
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552
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553 #define UNICODE_DEFAULT_ENCODING(arg) \
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554 _PyUnicode_AsDefaultEncodedString(arg, NULL)
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555
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556 /* Format an error message generated by convertsimple(). */
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557
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558 static char *
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559 converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize)
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560 {
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561 assert(expected != NULL);
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562 assert(arg != NULL);
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563 PyOS_snprintf(msgbuf, bufsize,
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564 "must be %.50s, not %.50s", expected,
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565 arg == Py_None ? "None" : arg->ob_type->tp_name);
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566 return msgbuf;
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567 }
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568
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569 #define CONV_UNICODE "(unicode conversion error)"
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570
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571 /* Explicitly check for float arguments when integers are expected.
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572 Return 1 for error, 0 if ok. */
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573 static int
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574 float_argument_error(PyObject *arg)
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575 {
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576 if (PyFloat_Check(arg)) {
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577 PyErr_SetString(PyExc_TypeError,
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578 "integer argument expected, got float" );
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579 return 1;
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580 }
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581 else
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582 return 0;
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583 }
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584
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585 /* Convert a non-tuple argument. Return NULL if conversion went OK,
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586 or a string with a message describing the failure. The message is
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587 formatted as "must be <desired type>, not <actual type>".
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588 When failing, an exception may or may not have been raised.
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589 Don't call if a tuple is expected.
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590
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591 When you add new format codes, please don't forget poor skipitem() below.
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592 */
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593
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594 static char *
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595 convertsimple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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596 char *msgbuf, size_t bufsize, PyObject **freelist)
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597 {
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598 /* For # codes */
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599 #define FETCH_SIZE int *q=NULL;Py_ssize_t *q2=NULL;\
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600 if (flags & FLAG_SIZE_T) q2=va_arg(*p_va, Py_ssize_t*); \
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601 else q=va_arg(*p_va, int*);
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602 #define STORE_SIZE(s) \
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603 if (flags & FLAG_SIZE_T) \
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604 *q2=s; \
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605 else { \
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606 if (INT_MAX < s) { \
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607 PyErr_SetString(PyExc_OverflowError, \
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608 "size does not fit in an int"); \
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609 return converterr("", arg, msgbuf, bufsize); \
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610 } \
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611 *q=s; \
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612 }
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613 #define BUFFER_LEN ((flags & FLAG_SIZE_T) ? *q2:*q)
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614 #define RETURN_ERR_OCCURRED return msgbuf
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615
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616 const char *format = *p_format;
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617 char c = *format++;
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618 PyObject *uarg;
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619
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620 switch (c) {
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621
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622 case 'b': { /* unsigned byte -- very short int */
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623 char *p = va_arg(*p_va, char *);
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624 long ival;
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625 if (float_argument_error(arg))
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626 RETURN_ERR_OCCURRED;
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627 ival = PyLong_AsLong(arg);
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628 if (ival == -1 && PyErr_Occurred())
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629 RETURN_ERR_OCCURRED;
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630 else if (ival < 0) {
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631 PyErr_SetString(PyExc_OverflowError,
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632 "unsigned byte integer is less than minimum");
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633 RETURN_ERR_OCCURRED;
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634 }
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635 else if (ival > UCHAR_MAX) {
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636 PyErr_SetString(PyExc_OverflowError,
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637 "unsigned byte integer is greater than maximum");
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638 RETURN_ERR_OCCURRED;
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639 }
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640 else
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641 *p = (unsigned char) ival;
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642 break;
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643 }
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644
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645 case 'B': {/* byte sized bitfield - both signed and unsigned
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646 values allowed */
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647 char *p = va_arg(*p_va, char *);
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648 long ival;
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649 if (float_argument_error(arg))
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650 RETURN_ERR_OCCURRED;
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651 ival = PyLong_AsUnsignedLongMask(arg);
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652 if (ival == -1 && PyErr_Occurred())
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653 RETURN_ERR_OCCURRED;
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654 else
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655 *p = (unsigned char) ival;
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656 break;
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657 }
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658
61466
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659 case 'h': {/* signed short int */
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660 short *p = va_arg(*p_va, short *);
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661 long ival;
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662 if (float_argument_error(arg))
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663 RETURN_ERR_OCCURRED;
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664 ival = PyLong_AsLong(arg);
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665 if (ival == -1 && PyErr_Occurred())
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666 RETURN_ERR_OCCURRED;
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667 else if (ival < SHRT_MIN) {
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668 PyErr_SetString(PyExc_OverflowError,
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669 "signed short integer is less than minimum");
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670 RETURN_ERR_OCCURRED;
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671 }
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672 else if (ival > SHRT_MAX) {
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673 PyErr_SetString(PyExc_OverflowError,
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674 "signed short integer is greater than maximum");
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675 RETURN_ERR_OCCURRED;
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676 }
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677 else
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678 *p = (short) ival;
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679 break;
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680 }
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681
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682 case 'H': { /* short int sized bitfield, both signed and
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683 unsigned allowed */
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684 unsigned short *p = va_arg(*p_va, unsigned short *);
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685 long ival;
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686 if (float_argument_error(arg))
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687 RETURN_ERR_OCCURRED;
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688 ival = PyLong_AsUnsignedLongMask(arg);
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689 if (ival == -1 && PyErr_Occurred())
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690 RETURN_ERR_OCCURRED;
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691 else
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692 *p = (unsigned short) ival;
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693 break;
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694 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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695
61466
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696 case 'i': {/* signed int */
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697 int *p = va_arg(*p_va, int *);
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698 long ival;
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699 if (float_argument_error(arg))
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700 RETURN_ERR_OCCURRED;
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701 ival = PyLong_AsLong(arg);
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702 if (ival == -1 && PyErr_Occurred())
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703 RETURN_ERR_OCCURRED;
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704 else if (ival > INT_MAX) {
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705 PyErr_SetString(PyExc_OverflowError,
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706 "signed integer is greater than maximum");
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707 RETURN_ERR_OCCURRED;
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708 }
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709 else if (ival < INT_MIN) {
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710 PyErr_SetString(PyExc_OverflowError,
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711 "signed integer is less than minimum");
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712 RETURN_ERR_OCCURRED;
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713 }
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714 else
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715 *p = ival;
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716 break;
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717 }
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
718
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719 case 'I': { /* int sized bitfield, both signed and
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720 unsigned allowed */
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721 unsigned int *p = va_arg(*p_va, unsigned int *);
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722 unsigned int ival;
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723 if (float_argument_error(arg))
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724 RETURN_ERR_OCCURRED;
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725 ival = (unsigned int)PyLong_AsUnsignedLongMask(arg);
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726 if (ival == (unsigned int)-1 && PyErr_Occurred())
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727 RETURN_ERR_OCCURRED;
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728 else
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729 *p = ival;
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730 break;
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731 }
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732
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733 case 'n': /* Py_ssize_t */
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734 {
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735 PyObject *iobj;
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736 Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *);
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737 Py_ssize_t ival = -1;
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738 if (float_argument_error(arg))
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739 RETURN_ERR_OCCURRED;
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740 iobj = PyNumber_Index(arg);
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741 if (iobj != NULL) {
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742 ival = PyLong_AsSsize_t(iobj);
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743 Py_DECREF(iobj);
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744 }
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745 if (ival == -1 && PyErr_Occurred())
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746 RETURN_ERR_OCCURRED;
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747 *p = ival;
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748 break;
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749 }
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750 case 'l': {/* long int */
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751 long *p = va_arg(*p_va, long *);
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752 long ival;
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753 if (float_argument_error(arg))
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754 RETURN_ERR_OCCURRED;
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755 ival = PyLong_AsLong(arg);
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756 if (ival == -1 && PyErr_Occurred())
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757 RETURN_ERR_OCCURRED;
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758 else
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759 *p = ival;
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760 break;
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761 }
28652
28a2975514cd SF # 595026: support for masks in getargs.c.
Thomas Heller <theller@ctypes.org>
parents: 28437
diff changeset
762
61466
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763 case 'k': { /* long sized bitfield */
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764 unsigned long *p = va_arg(*p_va, unsigned long *);
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765 unsigned long ival;
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766 if (PyLong_Check(arg))
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767 ival = PyLong_AsUnsignedLongMask(arg);
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768 else
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769 return converterr("integer<k>", arg, msgbuf, bufsize);
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770 *p = ival;
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771 break;
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772 }
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773
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774 #ifdef HAVE_LONG_LONG
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775 case 'L': {/* PY_LONG_LONG */
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diff changeset
776 PY_LONG_LONG *p = va_arg( *p_va, PY_LONG_LONG * );
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
777 PY_LONG_LONG ival;
62221
fe5ed70283ef Issue #8950: Make PyArg_Parse* with 'L' code raise for float inputs,
Mark Dickinson <dickinsm@gmail.com>
parents: 62202
diff changeset
778 if (float_argument_error(arg))
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
779 RETURN_ERR_OCCURRED;
61466
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diff changeset
780 ival = PyLong_AsLongLong(arg);
62221
fe5ed70283ef Issue #8950: Make PyArg_Parse* with 'L' code raise for float inputs,
Mark Dickinson <dickinsm@gmail.com>
parents: 62202
diff changeset
781 if (ival == (PY_LONG_LONG)-1 && PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
782 RETURN_ERR_OCCURRED;
62221
fe5ed70283ef Issue #8950: Make PyArg_Parse* with 'L' code raise for float inputs,
Mark Dickinson <dickinsm@gmail.com>
parents: 62202
diff changeset
783 else
61466
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diff changeset
784 *p = ival;
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diff changeset
785 break;
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diff changeset
786 }
28652
28a2975514cd SF # 595026: support for masks in getargs.c.
Thomas Heller <theller@ctypes.org>
parents: 28437
diff changeset
787
61466
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diff changeset
788 case 'K': { /* long long sized bitfield */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
789 unsigned PY_LONG_LONG *p = va_arg(*p_va, unsigned PY_LONG_LONG *);
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diff changeset
790 unsigned PY_LONG_LONG ival;
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diff changeset
791 if (PyLong_Check(arg))
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diff changeset
792 ival = PyLong_AsUnsignedLongLongMask(arg);
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diff changeset
793 else
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diff changeset
794 return converterr("integer<K>", arg, msgbuf, bufsize);
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diff changeset
795 *p = ival;
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diff changeset
796 break;
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diff changeset
797 }
8822
bd47ee068b83 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8358
diff changeset
798 #endif
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
799
61466
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diff changeset
800 case 'f': {/* float */
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diff changeset
801 float *p = va_arg(*p_va, float *);
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diff changeset
802 double dval = PyFloat_AsDouble(arg);
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diff changeset
803 if (PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
804 RETURN_ERR_OCCURRED;
61466
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diff changeset
805 else
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diff changeset
806 *p = (float) dval;
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diff changeset
807 break;
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parents: 60931
diff changeset
808 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
809
61466
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diff changeset
810 case 'd': {/* double */
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diff changeset
811 double *p = va_arg(*p_va, double *);
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diff changeset
812 double dval = PyFloat_AsDouble(arg);
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diff changeset
813 if (PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
814 RETURN_ERR_OCCURRED;
61466
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diff changeset
815 else
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diff changeset
816 *p = dval;
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diff changeset
817 break;
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diff changeset
818 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
819
61466
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diff changeset
820 case 'D': {/* complex double */
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parents: 60931
diff changeset
821 Py_complex *p = va_arg(*p_va, Py_complex *);
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parents: 60931
diff changeset
822 Py_complex cval;
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parents: 60931
diff changeset
823 cval = PyComplex_AsCComplex(arg);
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parents: 60931
diff changeset
824 if (PyErr_Occurred())
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
825 RETURN_ERR_OCCURRED;
61466
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diff changeset
826 else
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parents: 60931
diff changeset
827 *p = cval;
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diff changeset
828 break;
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diff changeset
829 }
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
830
61466
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diff changeset
831 case 'c': {/* char */
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parents: 60931
diff changeset
832 char *p = va_arg(*p_va, char *);
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diff changeset
833 if (PyBytes_Check(arg) && PyBytes_Size(arg) == 1)
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diff changeset
834 *p = PyBytes_AS_STRING(arg)[0];
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diff changeset
835 else
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diff changeset
836 return converterr("a byte string of length 1", arg, msgbuf, bufsize);
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diff changeset
837 break;
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diff changeset
838 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
839
61466
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diff changeset
840 case 'C': {/* unicode char */
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diff changeset
841 int *p = va_arg(*p_va, int *);
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parents: 60931
diff changeset
842 if (PyUnicode_Check(arg) &&
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parents: 60931
diff changeset
843 PyUnicode_GET_SIZE(arg) == 1)
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parents: 60931
diff changeset
844 *p = PyUnicode_AS_UNICODE(arg)[0];
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parents: 60931
diff changeset
845 else
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
846 return converterr("a unicode character", arg, msgbuf, bufsize);
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parents: 60931
diff changeset
847 break;
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diff changeset
848 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
849
62202
d7113cacd428 Issue #8838, #8339: Remove codecs.charbuffer_encode() and "t#" parsing format
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62197
diff changeset
850 /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all
61466
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parents: 60931
diff changeset
851 need to be cleaned up! */
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
852
61466
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diff changeset
853 case 'y': {/* any buffer-like object, but not PyUnicode */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
854 void **p = (void **)va_arg(*p_va, char **);
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parents: 60931
diff changeset
855 char *buf;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
856 Py_ssize_t count;
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parents: 60931
diff changeset
857 if (*format == '*') {
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
858 if (getbuffer(arg, (Py_buffer*)p, &buf) < 0)
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parents: 60931
diff changeset
859 return converterr(buf, arg, msgbuf, bufsize);
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diff changeset
860 format++;
67345
a7d15df7d67d Issue #8992: Simplify addcleanup() API
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
diff changeset
861 if (addcleanup(p, freelist, 1)) {
61466
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diff changeset
862 return converterr(
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parents: 60931
diff changeset
863 "(cleanup problem)",
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diff changeset
864 arg, msgbuf, bufsize);
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diff changeset
865 }
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866 break;
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diff changeset
867 }
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diff changeset
868 count = convertbuffer(arg, p, &buf);
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parents: 60931
diff changeset
869 if (count < 0)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
870 return converterr(buf, arg, msgbuf, bufsize);
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
871 if (*format == '#') {
61466
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diff changeset
872 FETCH_SIZE;
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diff changeset
873 STORE_SIZE(count);
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diff changeset
874 format++;
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
875 } else {
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
876 if (strlen(*p) != count)
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
877 return converterr(
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
878 "bytes without null bytes",
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
879 arg, msgbuf, bufsize);
61466
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diff changeset
880 }
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881 break;
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882 }
41611
c48fe4dc34a9 Change UnicodeDecodeError objects so that the 'object' attribute
Walter Dörwald <walter@livinglogic.de>
parents: 41596
diff changeset
883
62478
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
884 case 's': /* text string */
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
885 case 'z': /* text string or None */
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
886 {
61466
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diff changeset
887 if (*format == '*') {
62478
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
888 /* "s*" or "z*" */
61466
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diff changeset
889 Py_buffer *p = (Py_buffer *)va_arg(*p_va, Py_buffer *);
48683
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
890
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
891 if (c == 'z' && arg == Py_None)
61466
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diff changeset
892 PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0);
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diff changeset
893 else if (PyUnicode_Check(arg)) {
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diff changeset
894 uarg = UNICODE_DEFAULT_ENCODING(arg);
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diff changeset
895 if (uarg == NULL)
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diff changeset
896 return converterr(CONV_UNICODE,
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diff changeset
897 arg, msgbuf, bufsize);
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898 PyBuffer_FillInfo(p, arg,
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899 PyBytes_AS_STRING(uarg), PyBytes_GET_SIZE(uarg),
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900 1, 0);
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diff changeset
901 }
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diff changeset
902 else { /* any buffer-like object */
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diff changeset
903 char *buf;
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diff changeset
904 if (getbuffer(arg, p, &buf) < 0)
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diff changeset
905 return converterr(buf, arg, msgbuf, bufsize);
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parents: 60931
diff changeset
906 }
67345
a7d15df7d67d Issue #8992: Simplify addcleanup() API
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
diff changeset
907 if (addcleanup(p, freelist, 1)) {
61466
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diff changeset
908 return converterr(
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diff changeset
909 "(cleanup problem)",
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diff changeset
910 arg, msgbuf, bufsize);
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diff changeset
911 }
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diff changeset
912 format++;
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diff changeset
913 } else if (*format == '#') { /* any buffer-like object */
62478
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
914 /* "s#" or "z#" */
61466
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diff changeset
915 void **p = (void **)va_arg(*p_va, char **);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
916 FETCH_SIZE;
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0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
917
62478
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
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diff changeset
918 if (c == 'z' && arg == Py_None) {
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
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diff changeset
919 *p = NULL;
61466
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920 STORE_SIZE(0);
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921 }
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922 else if (PyUnicode_Check(arg)) {
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diff changeset
923 uarg = UNICODE_DEFAULT_ENCODING(arg);
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diff changeset
924 if (uarg == NULL)
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925 return converterr(CONV_UNICODE,
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diff changeset
926 arg, msgbuf, bufsize);
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diff changeset
927 *p = PyBytes_AS_STRING(uarg);
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diff changeset
928 STORE_SIZE(PyBytes_GET_SIZE(uarg));
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diff changeset
929 }
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930 else { /* any buffer-like object */
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931 /* XXX Really? */
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932 char *buf;
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933 Py_ssize_t count = convertbuffer(arg, p, &buf);
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934 if (count < 0)
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935 return converterr(buf, arg, msgbuf, bufsize);
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936 STORE_SIZE(count);
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937 }
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938 format++;
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939 } else {
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
940 /* "s" or "z" */
61466
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941 char **p = va_arg(*p_va, char **);
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diff changeset
942 uarg = NULL;
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
943
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diff changeset
944 if (c == 'z' && arg == Py_None)
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
Victor Stinner <victor.stinner@haypocalc.com>
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diff changeset
945 *p = NULL;
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946 else if (PyUnicode_Check(arg)) {
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diff changeset
947 uarg = UNICODE_DEFAULT_ENCODING(arg);
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diff changeset
948 if (uarg == NULL)
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diff changeset
949 return converterr(CONV_UNICODE,
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950 arg, msgbuf, bufsize);
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951 *p = PyBytes_AS_STRING(uarg);
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952 }
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953 else
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954 return converterr(c == 'z' ? "str or None" : "str",
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955 arg, msgbuf, bufsize);
61972
852d5ea625e7 Remove dead code
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diff changeset
956 if (*p != NULL && uarg != NULL &&
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957 (Py_ssize_t) strlen(*p) != PyBytes_GET_SIZE(uarg))
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958 return converterr(
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959 c == 'z' ? "str without null bytes or None"
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960 : "str without null bytes",
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961 arg, msgbuf, bufsize);
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962 }
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963 break;
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964 }
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parents: 43651
diff changeset
965
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diff changeset
966 case 'u': /* raw unicode buffer (Py_UNICODE *) */
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967 case 'Z': /* raw unicode buffer or None */
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diff changeset
968 {
68102
e2f96bd29252 Issue #8914: fix various warnings from the Clang static analyzer v254.
Brett Cannon <bcannon@gmail.com>
parents: 67346
diff changeset
969 Py_UNICODE **p = va_arg(*p_va, Py_UNICODE **);
e2f96bd29252 Issue #8914: fix various warnings from the Clang static analyzer v254.
Brett Cannon <bcannon@gmail.com>
parents: 67346
diff changeset
970
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971 if (*format == '#') { /* any buffer-like object */
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972 /* "s#" or "Z#" */
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973 FETCH_SIZE;
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diff changeset
974
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diff changeset
975 if (c == 'Z' && arg == Py_None) {
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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diff changeset
976 *p = NULL;
61466
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977 STORE_SIZE(0);
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978 }
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979 else if (PyUnicode_Check(arg)) {
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980 *p = PyUnicode_AS_UNICODE(arg);
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981 STORE_SIZE(PyUnicode_GET_SIZE(arg));
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diff changeset
982 }
62197
2cfe15b3cdf5 PyArg_Parse*("Z#") raises an error for unknown type
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62151
diff changeset
983 else
2cfe15b3cdf5 PyArg_Parse*("Z#") raises an error for unknown type
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parents: 62151
diff changeset
984 return converterr("str or None", arg, msgbuf, bufsize);
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985 format++;
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986 } else {
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987 /* "s" or "Z" */
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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diff changeset
988 if (c == 'Z' && arg == Py_None)
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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diff changeset
989 *p = NULL;
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
990 else if (PyUnicode_Check(arg)) {
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991 *p = PyUnicode_AS_UNICODE(arg);
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
992 if (Py_UNICODE_strlen(*p) != PyUnicode_GET_SIZE(arg))
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
993 return converterr(
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
994 "str without null character or None",
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
995 arg, msgbuf, bufsize);
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62221
diff changeset
996 } else
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diff changeset
997 return converterr(c == 'Z' ? "str or None" : "str",
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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diff changeset
998 arg, msgbuf, bufsize);
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999 }
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1000 break;
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1001 }
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1002
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1003 case 'e': {/* encoded string */
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1004 char **buffer;
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1005 const char *encoding;
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1006 PyObject *s;
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1007 int recode_strings;
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1008 Py_ssize_t size;
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1009 const char *ptr;
12051
d89556c04ef9 Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
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diff changeset
1010
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1011 /* Get 'e' parameter: the encoding name */
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1012 encoding = (const char *)va_arg(*p_va, const char *);
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1013 if (encoding == NULL)
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1014 encoding = PyUnicode_GetDefaultEncoding();
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diff changeset
1015
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1016 /* Get output buffer parameter:
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1017 's' (recode all objects via Unicode) or
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1018 't' (only recode non-string objects)
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1019 */
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1020 if (*format == 's')
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1021 recode_strings = 1;
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1022 else if (*format == 't')
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1023 recode_strings = 0;
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1024 else
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1025 return converterr(
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1026 "(unknown parser marker combination)",
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1027 arg, msgbuf, bufsize);
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1028 buffer = (char **)va_arg(*p_va, char **);
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1029 format++;
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1030 if (buffer == NULL)
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1031 return converterr("(buffer is NULL)",
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1032 arg, msgbuf, bufsize);
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1033
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1034 /* Encode object */
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1035 if (!recode_strings &&
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1036 (PyBytes_Check(arg) || PyByteArray_Check(arg))) {
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1037 s = arg;
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1038 Py_INCREF(s);
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1039 if (PyObject_AsCharBuffer(s, &ptr, &size) < 0)
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1040 return converterr("(AsCharBuffer failed)",
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1041 arg, msgbuf, bufsize);
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1042 }
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1043 else {
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1044 PyObject *u;
19343
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Martin v. Löwis <martin@v.loewis.de>
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1045
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1046 /* Convert object to Unicode */
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1047 u = PyUnicode_FromObject(arg);
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1048 if (u == NULL)
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1049 return converterr(
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1050 "string or unicode or text buffer",
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1051 arg, msgbuf, bufsize);
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1052
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1053 /* Encode object; use default error handling */
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1054 s = PyUnicode_AsEncodedString(u,
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1055 encoding,
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1056 NULL);
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1057 Py_DECREF(u);
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1058 if (s == NULL)
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1059 return converterr("(encoding failed)",
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1060 arg, msgbuf, bufsize);
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1061 if (!PyBytes_Check(s)) {
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1062 Py_DECREF(s);
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1063 return converterr(
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1064 "(encoder failed to return bytes)",
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1065 arg, msgbuf, bufsize);
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1066 }
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1067 size = PyBytes_GET_SIZE(s);
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1068 ptr = PyBytes_AS_STRING(s);
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1069 if (ptr == NULL)
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1070 ptr = "";
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1071 }
12051
d89556c04ef9 Marc-Andre Lemburg:
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1072
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1073 /* Write output; output is guaranteed to be 0-terminated */
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1074 if (*format == '#') {
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1075 /* Using buffer length parameter '#':
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1076
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1077 - if *buffer is NULL, a new buffer of the
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1078 needed size is allocated and the data
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1079 copied into it; *buffer is updated to point
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1080 to the new buffer; the caller is
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1081 responsible for PyMem_Free()ing it after
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1082 usage
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1083
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1084 - if *buffer is not NULL, the data is
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1085 copied to *buffer; *buffer_len has to be
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1086 set to the size of the buffer on input;
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1087 buffer overflow is signalled with an error;
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1088 buffer has to provide enough room for the
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1089 encoded string plus the trailing 0-byte
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1090
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1091 - in both cases, *buffer_len is updated to
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1092 the size of the buffer /excluding/ the
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1093 trailing 0-byte
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1094
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1095 */
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1096 FETCH_SIZE;
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1097
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1098 format++;
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1099 if (q == NULL && q2 == NULL) {
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1100 Py_DECREF(s);
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1101 return converterr(
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1102 "(buffer_len is NULL)",
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1103 arg, msgbuf, bufsize);
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1104 }
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1105 if (*buffer == NULL) {
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1106 *buffer = PyMem_NEW(char, size + 1);
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1107 if (*buffer == NULL) {
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1108 Py_DECREF(s);
62151
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62149
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1109 PyErr_NoMemory();
67346
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parents: 67345
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1110 RETURN_ERR_OCCURRED;
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1111 }
67345
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Victor Stinner <victor.stinner@haypocalc.com>
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1112 if (addcleanup(*buffer, freelist, 0)) {
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1113 Py_DECREF(s);
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1114 return converterr(
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1115 "(cleanup problem)",
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1116 arg, msgbuf, bufsize);
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1117 }
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1118 } else {
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1119 if (size + 1 > BUFFER_LEN) {
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1120 Py_DECREF(s);
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1121 return converterr(
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1122 "(buffer overflow)",
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1123 arg, msgbuf, bufsize);
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1124 }
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1125 }
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1126 memcpy(*buffer, ptr, size+1);
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1127 STORE_SIZE(size);
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1128 } else {
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1129 /* Using a 0-terminated buffer:
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1130
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1131 - the encoded string has to be 0-terminated
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1132 for this variant to work; if it is not, an
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1133 error raised
17996
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Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
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1134
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1135 - a new buffer of the needed size is
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1136 allocated and the data copied into it;
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1137 *buffer is updated to point to the new
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1138 buffer; the caller is responsible for
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1139 PyMem_Free()ing it after usage
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1140
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1141 */
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1142 if ((Py_ssize_t)strlen(ptr) != size) {
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1143 Py_DECREF(s);
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1144 return converterr(
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1145 "encoded string without NULL bytes",
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1146 arg, msgbuf, bufsize);
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1147 }
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1148 *buffer = PyMem_NEW(char, size + 1);
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1149 if (*buffer == NULL) {
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1150 Py_DECREF(s);
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Victor Stinner <victor.stinner@haypocalc.com>
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1151 PyErr_NoMemory();
67346
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1152 RETURN_ERR_OCCURRED;
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1153 }
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
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1154 if (addcleanup(*buffer, freelist, 0)) {
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1155 Py_DECREF(s);
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1156 return converterr("(cleanup problem)",
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1157 arg, msgbuf, bufsize);
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1158 }
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diff changeset
1159 memcpy(*buffer, ptr, size+1);
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diff changeset
1160 }
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diff changeset
1161 Py_DECREF(s);
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diff changeset
1162 break;
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1163 }
12570
3dbe41380266 Brian Hooper <brian_takashi@hotmail.com>:
Fred Drake <fdrake@acm.org>
parents: 12510
diff changeset
1164
61466
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diff changeset
1165 case 'S': { /* PyBytes object */
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diff changeset
1166 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1167 if (PyBytes_Check(arg))
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diff changeset
1168 *p = arg;
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diff changeset
1169 else
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diff changeset
1170 return converterr("bytes", arg, msgbuf, bufsize);
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diff changeset
1171 break;
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1172 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1173
61466
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diff changeset
1174 case 'Y': { /* PyByteArray object */
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diff changeset
1175 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1176 if (PyByteArray_Check(arg))
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diff changeset
1177 *p = arg;
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diff changeset
1178 else
62197
2cfe15b3cdf5 PyArg_Parse*("Z#") raises an error for unknown type
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62151
diff changeset
1179 return converterr("bytearray", arg, msgbuf, bufsize);
61466
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diff changeset
1180 break;
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1181 }
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Guido van Rossum <guido@python.org>
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diff changeset
1182
61466
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diff changeset
1183 case 'U': { /* PyUnicode object */
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diff changeset
1184 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1185 if (PyUnicode_Check(arg))
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diff changeset
1186 *p = arg;
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1187 else
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1188 return converterr("str", arg, msgbuf, bufsize);
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1189 break;
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1190 }
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diff changeset
1191
61466
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diff changeset
1192 case 'O': { /* object */
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diff changeset
1193 PyTypeObject *type;
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diff changeset
1194 PyObject **p;
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diff changeset
1195 if (*format == '!') {
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diff changeset
1196 type = va_arg(*p_va, PyTypeObject*);
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diff changeset
1197 p = va_arg(*p_va, PyObject **);
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diff changeset
1198 format++;
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diff changeset
1199 if (PyType_IsSubtype(arg->ob_type, type))
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diff changeset
1200 *p = arg;
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diff changeset
1201 else
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diff changeset
1202 return converterr(type->tp_name, arg, msgbuf, bufsize);
8358
da4bdceeaad7 Another veeeeeery old patch...
Guido van Rossum <guido@python.org>
parents: 7982
diff changeset
1203
61466
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diff changeset
1204 }
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diff changeset
1205 else if (*format == '&') {
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diff changeset
1206 typedef int (*converter)(PyObject *, void *);
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diff changeset
1207 converter convert = va_arg(*p_va, converter);
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diff changeset
1208 void *addr = va_arg(*p_va, void *);
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diff changeset
1209 int res;
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diff changeset
1210 format++;
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diff changeset
1211 if (! (res = (*convert)(arg, addr)))
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diff changeset
1212 return converterr("(unspecified)",
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diff changeset
1213 arg, msgbuf, bufsize);
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diff changeset
1214 if (res == Py_CLEANUP_SUPPORTED &&
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diff changeset
1215 addcleanup_convert(addr, freelist, convert) == -1)
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diff changeset
1216 return converterr("(cleanup problem)",
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diff changeset
1217 arg, msgbuf, bufsize);
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diff changeset
1218 }
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1219 else {
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diff changeset
1220 p = va_arg(*p_va, PyObject **);
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diff changeset
1221 *p = arg;
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diff changeset
1222 }
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diff changeset
1223 break;
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1224 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1225
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1226
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1227 case 'w': { /* "w*": memory buffer, read-write access */
61466
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diff changeset
1228 void **p = va_arg(*p_va, void **);
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1229
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1230 if (*format != '*')
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1231 return converterr(
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1232 "invalid use of 'w' format character",
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1233 arg, msgbuf, bufsize);
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1234 format++;
48683
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1235
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1236 /* Caller is interested in Py_buffer, and the object
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1237 supports it directly. */
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1238 if (PyObject_GetBuffer(arg, (Py_buffer*)p, PyBUF_WRITABLE) < 0) {
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1239 PyErr_Clear();
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1240 return converterr("read-write buffer", arg, msgbuf, bufsize);
61466
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diff changeset
1241 }
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1242 if (!PyBuffer_IsContiguous((Py_buffer*)p, 'C')) {
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1243 PyBuffer_Release((Py_buffer*)p);
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1244 return converterr("contiguous buffer", arg, msgbuf, bufsize);
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1245 }
67345
a7d15df7d67d Issue #8992: Simplify addcleanup() API
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67342
diff changeset
1246 if (addcleanup(p, freelist, 1)) {
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1247 return converterr(
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1248 "(cleanup problem)",
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1249 arg, msgbuf, bufsize);
61466
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diff changeset
1250 }
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diff changeset
1251 break;
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diff changeset
1252 }
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
1253
61466
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diff changeset
1254 default:
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diff changeset
1255 return converterr("impossible<bad format char>", arg, msgbuf, bufsize);
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1256
61466
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1257 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1258
61466
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diff changeset
1259 *p_format = format;
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diff changeset
1260 return NULL;
67346
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1261
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1262 #undef FETCH_SIZE
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1263 #undef STORE_SIZE
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1264 #undef BUFFER_LEN
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1265 #undef RETURN_ERR_OCCURRED
1913
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
Guido van Rossum <guido@python.org>
parents:
diff changeset
1266 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1267
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1268 static Py_ssize_t
20629
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1269 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
1270 {
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1271 PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer;
61466
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diff changeset
1272 Py_ssize_t count;
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diff changeset
1273 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
1274
61466
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diff changeset
1275 *errmsg = NULL;
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diff changeset
1276 *p = NULL;
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1277 if (pb != NULL && pb->bf_releasebuffer != NULL) {
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1278 *errmsg = "read-only pinned buffer";
61466
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diff changeset
1279 return -1;
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1280 }
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
1281
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1282 if (getbuffer(arg, &view, errmsg) < 0)
61466
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diff changeset
1283 return -1;
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parents: 60931
diff changeset
1284 count = view.len;
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diff changeset
1285 *p = view.buf;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1286 PyBuffer_Release(&view);
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parents: 60931
diff changeset
1287 return count;
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1288 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1289
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1290 static int
48848
5c75a33ef5b2 Merged revisions 66006 via svnmerge from
Neal Norwitz <nnorwitz@gmail.com>
parents: 48683
diff changeset
1291 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
1292 {
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1293 if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) {
61466
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diff changeset
1294 *errmsg = "bytes or buffer";
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diff changeset
1295 return -1;
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diff changeset
1296 }
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1297 if (!PyBuffer_IsContiguous(view, 'C')) {
62482
bb6222a4ed24 getbuffer(): release the buffer on error (if the buffer is not contiguous)
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62478
diff changeset
1298 PyBuffer_Release(view);
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1299 *errmsg = "contiguous buffer";
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1300 return -1;
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1301 }
61466
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1302 return 0;
48683
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1303 }
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1304
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1305 /* 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
1306 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
1307
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
parents: 20710
diff changeset
1308 /* 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
1309 int
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1310 PyArg_ParseTupleAndKeywords(PyObject *args,
61466
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diff changeset
1311 PyObject *keywords,
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diff changeset
1312 const char *format,
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diff changeset
1313 char **kwlist, ...)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1314 {
61466
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diff changeset
1315 int retval;
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diff changeset
1316 va_list va;
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1317
61466
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diff changeset
1318 if ((args == NULL || !PyTuple_Check(args)) ||
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diff changeset
1319 (keywords != NULL && !PyDict_Check(keywords)) ||
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diff changeset
1320 format == NULL ||
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diff changeset
1321 kwlist == NULL)
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diff changeset
1322 {
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diff changeset
1323 PyErr_BadInternalCall();
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diff changeset
1324 return 0;
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diff changeset
1325 }
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1326
61466
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diff changeset
1327 va_start(va, kwlist);
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diff changeset
1328 retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1329 va_end(va);
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diff changeset
1330 return retval;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1331 }
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1332
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1333 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1334 _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args,
61466
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diff changeset
1335 PyObject *keywords,
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diff changeset
1336 const char *format,
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diff changeset
1337 char **kwlist, ...)
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diff changeset
1338 {
61466
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diff changeset
1339 int retval;
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diff changeset
1340 va_list va;
36501
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diff changeset
1341
61466
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diff changeset
1342 if ((args == NULL || !PyTuple_Check(args)) ||
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diff changeset
1343 (keywords != NULL && !PyDict_Check(keywords)) ||
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diff changeset
1344 format == NULL ||
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diff changeset
1345 kwlist == NULL)
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diff changeset
1346 {
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diff changeset
1347 PyErr_BadInternalCall();
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diff changeset
1348 return 0;
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diff changeset
1349 }
36501
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diff changeset
1350
61466
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diff changeset
1351 va_start(va, kwlist);
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diff changeset
1352 retval = vgetargskeywords(args, keywords, format,
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diff changeset
1353 kwlist, &va, FLAG_SIZE_T);
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diff changeset
1354 va_end(va);
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diff changeset
1355 return retval;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1356 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1357
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1358
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1359 int
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1360 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
1361 PyObject *keywords,
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1362 const char *format,
36675
dba6494735d0 Revert backwards-incompatible const changes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36625
diff changeset
1363 char **kwlist, va_list va)
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1364 {
61466
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diff changeset
1365 int retval;
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diff changeset
1366 va_list lva;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1367
61466
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diff changeset
1368 if ((args == NULL || !PyTuple_Check(args)) ||
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diff changeset
1369 (keywords != NULL && !PyDict_Check(keywords)) ||
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diff changeset
1370 format == NULL ||
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diff changeset
1371 kwlist == NULL)
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diff changeset
1372 {
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diff changeset
1373 PyErr_BadInternalCall();
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diff changeset
1374 return 0;
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parents: 60931
diff changeset
1375 }
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1376
63924
9108e7dcd7d8 Issue #2443: Added a new macro, Py_VA_COPY, which is equivalent to C99
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 63259
diff changeset
1377 Py_VA_COPY(lva, va);
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1378
61466
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diff changeset
1379 retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0);
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diff changeset
1380 return retval;
36501
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Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1381 }
7fdc639bc5b4 Merge ssize_t branch.
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diff changeset
1382
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1383 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1384 _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args,
61466
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diff changeset
1385 PyObject *keywords,
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diff changeset
1386 const char *format,
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diff changeset
1387 char **kwlist, va_list va)
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diff changeset
1388 {
61466
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diff changeset
1389 int retval;
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diff changeset
1390 va_list lva;
36501
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diff changeset
1391
61466
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diff changeset
1392 if ((args == NULL || !PyTuple_Check(args)) ||
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diff changeset
1393 (keywords != NULL && !PyDict_Check(keywords)) ||
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diff changeset
1394 format == NULL ||
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diff changeset
1395 kwlist == NULL)
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diff changeset
1396 {
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diff changeset
1397 PyErr_BadInternalCall();
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diff changeset
1398 return 0;
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diff changeset
1399 }
36501
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Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1400
63924
9108e7dcd7d8 Issue #2443: Added a new macro, Py_VA_COPY, which is equivalent to C99
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 63259
diff changeset
1401 Py_VA_COPY(lva, va);
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1402
61466
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diff changeset
1403 retval = vgetargskeywords(args, keywords, format,
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diff changeset
1404 kwlist, &lva, FLAG_SIZE_T);
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diff changeset
1405 return retval;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1406 }
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1407
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1408 int
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1409 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
1410 {
66220
379029714e24 handle dict subclasses gracefully in PyArg_ValidateKeywordArguments
Benjamin Peterson <benjamin@python.org>
parents: 63924
diff changeset
1411 if (!PyDict_Check(kwargs)) {
61466
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diff changeset
1412 PyErr_BadInternalCall();
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diff changeset
1413 return 0;
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diff changeset
1414 }
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diff changeset
1415 if (!_PyDict_HasOnlyStringKeys(kwargs)) {
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diff changeset
1416 PyErr_SetString(PyExc_TypeError,
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diff changeset
1417 "keyword arguments must be strings");
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diff changeset
1418 return 0;
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diff changeset
1419 }
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diff changeset
1420 return 1;
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1421 }
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1422
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Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
1423 #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
1424
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1425 static int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1426 vgetargskeywords(PyObject *args, PyObject *keywords, const char *format,
61466
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diff changeset
1427 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
1428 {
61466
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diff changeset
1429 char msgbuf[512];
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diff changeset
1430 int levels[32];
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diff changeset
1431 const char *fname, *msg, *custom_msg, *keyword;
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diff changeset
1432 int min = INT_MAX;
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diff changeset
1433 int i, len, nargs, nkeywords;
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diff changeset
1434 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
1435
61466
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diff changeset
1436 assert(args != NULL && PyTuple_Check(args));
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1437 assert(keywords == NULL || PyDict_Check(keywords));
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diff changeset
1438 assert(format != NULL);
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diff changeset
1439 assert(kwlist != NULL);
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diff changeset
1440 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
1441
61466
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diff changeset
1442 /* grab the function name or custom error msg first (mutually exclusive) */
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diff changeset
1443 fname = strchr(format, ':');
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diff changeset
1444 if (fname) {
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diff changeset
1445 fname++;
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diff changeset
1446 custom_msg = NULL;
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1447 }
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1448 else {
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1449 custom_msg = strchr(format,';');
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1450 if (custom_msg)
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1451 custom_msg++;
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1452 }
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diff changeset
1453
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1454 /* scan kwlist and get greatest possible nbr of args */
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1455 for (len=0; kwlist[len]; len++)
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diff changeset
1456 continue;
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
parents: 20710
diff changeset
1457
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1458 nargs = PyTuple_GET_SIZE(args);
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1459 nkeywords = (keywords == NULL) ? 0 : PyDict_Size(keywords);
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1460 if (nargs + nkeywords > len) {
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diff changeset
1461 PyErr_Format(PyExc_TypeError, "%s%s takes at most %d "
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diff changeset
1462 "argument%s (%d given)",
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diff changeset
1463 (fname == NULL) ? "function" : fname,
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diff changeset
1464 (fname == NULL) ? "" : "()",
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diff changeset
1465 len,
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1466 (len == 1) ? "" : "s",
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1467 nargs + nkeywords);
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1468 return 0;
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1469 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
parents: 20722
diff changeset
1470
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1471 /* convert tuple args and keyword args in same loop, using kwlist to drive process */
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1472 for (i = 0; i < len; i++) {
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diff changeset
1473 keyword = kwlist[i];
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1474 if (*format == '|') {
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1475 min = i;
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1476 format++;
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1477 }
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1478 if (IS_END_OF_FORMAT(*format)) {
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1479 PyErr_Format(PyExc_RuntimeError,
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diff changeset
1480 "More keyword list entries (%d) than "
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diff changeset
1481 "format specifiers (%d)", len, i);
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diff changeset
1482 return cleanreturn(0, freelist);
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1483 }
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1484 current_arg = NULL;
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1485 if (nkeywords) {
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1486 current_arg = PyDict_GetItemString(keywords, keyword);
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1487 }
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1488 if (current_arg) {
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diff changeset
1489 --nkeywords;
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1490 if (i < nargs) {
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1491 /* arg present in tuple and in dict */
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1492 PyErr_Format(PyExc_TypeError,
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diff changeset
1493 "Argument given by name ('%s') "
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diff changeset
1494 "and position (%d)",
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1495 keyword, i+1);
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1496 return cleanreturn(0, freelist);
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1497 }
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1498 }
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1499 else if (nkeywords && PyErr_Occurred())
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1500 return cleanreturn(0, freelist);
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1501 else if (i < nargs)
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1502 current_arg = PyTuple_GET_ITEM(args, i);
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1503
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1504 if (current_arg) {
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1505 msg = convertitem(current_arg, &format, p_va, flags,
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1506 levels, msgbuf, sizeof(msgbuf), &freelist);
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1507 if (msg) {
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1508 seterror(i+1, msg, levels, fname, custom_msg);
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1509 return cleanreturn(0, freelist);
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1510 }
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1511 continue;
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1512 }
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1513
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1514 if (i < min) {
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1515 PyErr_Format(PyExc_TypeError, "Required argument "
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1516 "'%s' (pos %d) not found",
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1517 keyword, i+1);
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1518 return cleanreturn(0, freelist);
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1519 }
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1520 /* current code reports success when all required args
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1521 * fulfilled and no keyword args left, with no further
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1522 * validation. XXX Maybe skip this in debug build ?
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1523 */
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1524 if (!nkeywords)
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1525 return cleanreturn(1, freelist);
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1526
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1527 /* We are into optional args, skip thru to any remaining
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1528 * keyword args */
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1529 msg = skipitem(&format, p_va, flags);
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1530 if (msg) {
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1531 PyErr_Format(PyExc_RuntimeError, "%s: '%s'", msg,
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1532 format);
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1533 return cleanreturn(0, freelist);
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1534 }
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1535 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1536
61466
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1537 if (!IS_END_OF_FORMAT(*format) && *format != '|') {
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1538 PyErr_Format(PyExc_RuntimeError,
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1539 "more argument specifiers than keyword list entries "
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1540 "(remaining format:'%s')", format);
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1541 return cleanreturn(0, freelist);
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1542 }
20715
5e6f8187bd48 vgetargskeywords:
Tim Peters <tim.peters@gmail.com>
parents: 20714
diff changeset
1543
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1544 /* make sure there are no extraneous keyword arguments */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1545 if (nkeywords > 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1546 PyObject *key, *value;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1547 Py_ssize_t pos = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1548 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
1549 int match = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1550 char *ks;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1551 if (!PyUnicode_Check(key)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1552 PyErr_SetString(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1553 "keywords must be strings");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1554 return cleanreturn(0, freelist);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1555 }
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1556 /* 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
1557 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
1558 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
1559 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
1560 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
1561 match = 1;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1562 break;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1563 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1564 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1565 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1566 if (!match) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1567 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
1568 "'%U' is an invalid keyword "
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1569 "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
1570 key);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1571 return cleanreturn(0, freelist);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1572 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1573 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1574 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
parents: 20722
diff changeset
1575
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1576 return cleanreturn(1, freelist);
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1577 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1578
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1579
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1580 static char *
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1581 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
1582 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1583 const char *format = *p_format;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1584 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
1585
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1586 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
1587
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1588 /* simple codes
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1589 * 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
1590
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1591 case 'b': /* byte -- very short int */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1592 case 'B': /* byte as bitfield */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1593 case 'h': /* short int */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1594 case 'H': /* short int as bitfield */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1595 case 'i': /* int */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1596 case 'I': /* int sized bitfield */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1597 case 'l': /* long int */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1598 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
1599 #ifdef HAVE_LONG_LONG
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1600 case 'L': /* PY_LONG_LONG */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1601 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
1602 #endif
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1603 case 'f': /* float */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1604 case 'd': /* double */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1605 case 'D': /* complex double */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1606 case 'c': /* char */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1607 case 'C': /* unicode char */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1608 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1609 (void) va_arg(*p_va, void *);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1610 break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1611 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1612
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1613 case 'n': /* Py_ssize_t */
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parents: 60931
diff changeset
1614 {
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parents: 60931
diff changeset
1615 (void) va_arg(*p_va, Py_ssize_t *);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1616 break;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1617 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1618
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1619 /* string codes */
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1620
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1621 case 'e': /* string with encoding */
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parents: 60931
diff changeset
1622 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1623 (void) va_arg(*p_va, const char *);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1624 if (!(*format == 's' || *format == 't'))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1625 /* after 'e', only 's' and 't' is allowed */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1626 goto err;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1627 format++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1628 /* explicit fallthrough to string cases */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1629 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1630
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1631 case 's': /* string */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1632 case 'z': /* string or None */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1633 case 'y': /* bytes */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1634 case 'u': /* unicode string */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1635 case 'w': /* buffer, read-write */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1636 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1637 (void) va_arg(*p_va, char **);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1638 if (*format == '#') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1639 if (flags & FLAG_SIZE_T)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1640 (void) va_arg(*p_va, Py_ssize_t *);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1641 else
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parents: 60931
diff changeset
1642 (void) va_arg(*p_va, int *);
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parents: 60931
diff changeset
1643 format++;
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parents: 60931
diff changeset
1644 } else if ((c == 's' || c == 'z' || c == 'y') && *format == '*') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1645 format++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1646 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1647 break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1648 }
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1649
61466
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parents: 60931
diff changeset
1650 /* object codes */
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1651
61466
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parents: 60931
diff changeset
1652 case 'S': /* string object */
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parents: 60931
diff changeset
1653 case 'Y': /* string object */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1654 case 'U': /* unicode string object */
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parents: 60931
diff changeset
1655 {
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parents: 60931
diff changeset
1656 (void) va_arg(*p_va, PyObject **);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1657 break;
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parents: 60931
diff changeset
1658 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1659
61466
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parents: 60931
diff changeset
1660 case 'O': /* object */
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parents: 60931
diff changeset
1661 {
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diff changeset
1662 if (*format == '!') {
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parents: 60931
diff changeset
1663 format++;
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parents: 60931
diff changeset
1664 (void) va_arg(*p_va, PyTypeObject*);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60931
diff changeset
1665 (void) va_arg(*p_va, PyObject **);
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parents: 60931
diff changeset
1666 }
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diff changeset
1667 else if (*format == '&') {
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diff changeset
1668 typedef int (*converter)(PyObject *, void *);
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parents: 60931
diff changeset
1669 (void) va_arg(*p_va, converter);
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diff changeset
1670 (void) va_arg(*p_va, void *);
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diff changeset
1671 format++;
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1672 }
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1673 else {
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1674 (void) va_arg(*p_va, PyObject **);
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1675 }
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1676 break;
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1677 }
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Guido van Rossum <guido@python.org>
parents: 43651
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1678
61466
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1679 case '(': /* bypass tuple, not handled at all previously */
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1680 {
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1681 char *msg;
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1682 for (;;) {
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1683 if (*format==')')
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1684 break;
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1685 if (IS_END_OF_FORMAT(*format))
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1686 return "Unmatched left paren in format "
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1687 "string";
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1688 msg = skipitem(&format, p_va, flags);
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diff changeset
1689 if (msg)
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1690 return msg;
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1691 }
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1692 format++;
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1693 break;
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1694 }
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parents: 45534
diff changeset
1695
61466
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1696 case ')':
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1697 return "Unmatched right paren in format string";
45548
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1698
61466
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1699 default:
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1700 err:
61466
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1701 return "impossible<bad format char>";
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1702
61466
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1703 }
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
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1704
61466
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1705 *p_format = format;
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1706 return NULL;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1707 }
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1708
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1709
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1710 int
36750
92ba72484ff3 Use Py_ssize_t for PyArg_UnpackTuple arguments.
Martin v. Löwis <martin@v.loewis.de>
parents: 36675
diff changeset
1711 PyArg_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t max, ...)
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1712 {
61466
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1713 Py_ssize_t i, l;
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1714 PyObject **o;
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1715 va_list vargs;
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1716
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1717 #ifdef HAVE_STDARG_PROTOTYPES
61466
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1718 va_start(vargs, max);
20632
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Fred Drake <fdrake@acm.org>
parents: 20629
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1719 #else
61466
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1720 va_start(vargs);
20632
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Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1721 #endif
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
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1722
61466
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1723 assert(min >= 0);
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diff changeset
1724 assert(min <= max);
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1725 if (!PyTuple_Check(args)) {
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diff changeset
1726 PyErr_SetString(PyExc_SystemError,
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diff changeset
1727 "PyArg_UnpackTuple() argument list is not a tuple");
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diff changeset
1728 return 0;
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1729 }
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1730 l = PyTuple_GET_SIZE(args);
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1731 if (l < min) {
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parents: 60931
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1732 if (name != NULL)
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diff changeset
1733 PyErr_Format(
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1734 PyExc_TypeError,
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1735 "%s expected %s%zd arguments, got %zd",
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diff changeset
1736 name, (min == max ? "" : "at least "), min, l);
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diff changeset
1737 else
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diff changeset
1738 PyErr_Format(
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1739 PyExc_TypeError,
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diff changeset
1740 "unpacked tuple should have %s%zd elements,"
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diff changeset
1741 " but has %zd",
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parents: 60931
diff changeset
1742 (min == max ? "" : "at least "), min, l);
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1743 va_end(vargs);
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1744 return 0;
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1745 }
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1746 if (l > max) {
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parents: 60931
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1747 if (name != NULL)
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diff changeset
1748 PyErr_Format(
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1749 PyExc_TypeError,
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diff changeset
1750 "%s expected %s%zd arguments, got %zd",
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diff changeset
1751 name, (min == max ? "" : "at most "), max, l);
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parents: 60931
diff changeset
1752 else
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diff changeset
1753 PyErr_Format(
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diff changeset
1754 PyExc_TypeError,
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diff changeset
1755 "unpacked tuple should have %s%zd elements,"
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diff changeset
1756 " but has %zd",
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diff changeset
1757 (min == max ? "" : "at most "), max, l);
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diff changeset
1758 va_end(vargs);
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diff changeset
1759 return 0;
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1760 }
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1761 for (i = 0; i < l; i++) {
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diff changeset
1762 o = va_arg(vargs, PyObject **);
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diff changeset
1763 *o = PyTuple_GET_ITEM(args, i);
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1764 }
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1765 va_end(vargs);
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1766 return 1;
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1767 }
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1768
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1769
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1770 /* For type constructors that don't take keyword args
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1771 *
43777
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Guido van Rossum <guido@python.org>
parents: 43651
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1772 * 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>
parents: 39442
diff changeset
1773 * not empty, returns 1 otherwise
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1774 */
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1775 int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1776 _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
1777 {
61466
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1778 if (kw == NULL)
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1779 return 1;
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1780 if (!PyDict_CheckExact(kw)) {
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diff changeset
1781 PyErr_BadInternalCall();
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diff changeset
1782 return 0;
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1783 }
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1784 if (PyDict_Size(kw) == 0)
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1785 return 1;
43777
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Guido van Rossum <guido@python.org>
parents: 43651
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1786
61466
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1787 PyErr_Format(PyExc_TypeError, "%s does not take keyword arguments",
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diff changeset
1788 funcname);
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1789 return 0;
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1790 }
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36988
diff changeset
1791 #ifdef __cplusplus
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
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1792 };
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
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1793 #endif