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annotate Python/getargs.c @ 75733:9fc456ac20cf

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Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
author Jean-Paul Calderone <exarkun@twistedmatrix.com>
date Fri, 16 Mar 2012 08:51:42 -0400
parents 9685f893fffe
children 2b8994c2851a
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8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
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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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5
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6 #include <ctype.h>
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9 #ifdef __cplusplus
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10 extern "C" {
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11 #endif
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12 int PyArg_Parse(PyObject *, const char *, ...);
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13 int PyArg_ParseTuple(PyObject *, const char *, ...);
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14 int PyArg_VaParse(PyObject *, const char *, va_list);
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16 int PyArg_ParseTupleAndKeywords(PyObject *, PyObject *,
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17 const char *, char **, ...);
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18 int PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *,
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19 const char *, char **, va_list);
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20
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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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35
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36 typedef int (*destr_t)(PyObject *, void *);
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38
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39 /* Keep track of "objects" that have been allocated or initialized and
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40 which will need to be deallocated or cleaned up somehow if overall
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41 parsing fails.
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42 */
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43 typedef struct {
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44 void *item;
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45 destr_t destructor;
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46 } freelistentry_t;
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47
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48 typedef struct {
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49 int first_available;
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50 freelistentry_t *entries;
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51 } freelist_t;
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52
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54 /* Forward */
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55 static int vgetargs1(PyObject *, const char *, va_list *, int);
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56 static void seterror(int, const char *, int *, const char *, const char *);
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57 static char *convertitem(PyObject *, const char **, va_list *, int, int *,
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58 char *, size_t, freelist_t *);
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59 static char *converttuple(PyObject *, const char **, va_list *, int,
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60 int *, char *, size_t, int, freelist_t *);
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61 static char *convertsimple(PyObject *, const char **, va_list *, int, char *,
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62 size_t, freelist_t *);
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63 static Py_ssize_t convertbuffer(PyObject *, void **p, char **);
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64 static int getbuffer(PyObject *, Py_buffer *, char**);
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65
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66 static int vgetargskeywords(PyObject *, PyObject *,
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67 const char *, char **, va_list *, int);
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68 static char *skipitem(const char **, va_list *, int);
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69
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70 int
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71 PyArg_Parse(PyObject *args, const char *format, ...)
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72 {
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73 int retval;
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74 va_list va;
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75
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76 va_start(va, format);
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77 retval = vgetargs1(args, format, &va, FLAG_COMPAT);
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78 va_end(va);
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79 return retval;
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80 }
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81
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82 int
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83 _PyArg_Parse_SizeT(PyObject *args, char *format, ...)
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84 {
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85 int retval;
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86 va_list va;
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87
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88 va_start(va, format);
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89 retval = vgetargs1(args, format, &va, FLAG_COMPAT|FLAG_SIZE_T);
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90 va_end(va);
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91 return retval;
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92 }
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94
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95 int
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96 PyArg_ParseTuple(PyObject *args, const char *format, ...)
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97 {
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98 int retval;
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99 va_list va;
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100
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101 va_start(va, format);
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102 retval = vgetargs1(args, format, &va, 0);
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103 va_end(va);
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104 return retval;
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105 }
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106
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107 int
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108 _PyArg_ParseTuple_SizeT(PyObject *args, char *format, ...)
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109 {
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110 int retval;
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111 va_list va;
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112
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113 va_start(va, format);
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114 retval = vgetargs1(args, format, &va, FLAG_SIZE_T);
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115 va_end(va);
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116 return retval;
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117 }
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118
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120 int
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121 PyArg_VaParse(PyObject *args, const char *format, va_list va)
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122 {
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123 va_list lva;
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124
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125 Py_VA_COPY(lva, va);
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126
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127 return vgetargs1(args, format, &lva, 0);
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128 }
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129
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130 int
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131 _PyArg_VaParse_SizeT(PyObject *args, char *format, va_list va)
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132 {
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133 va_list lva;
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134
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135 Py_VA_COPY(lva, va);
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136
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137 return vgetargs1(args, format, &lva, FLAG_SIZE_T);
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138 }
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139
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140
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141 /* Handle cleanup of allocated memory in case of exception */
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142
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143 #define GETARGS_CAPSULE_NAME_CLEANUP_PTR "getargs.cleanup_ptr"
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144 #define GETARGS_CAPSULE_NAME_CLEANUP_BUFFER "getargs.cleanup_buffer"
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145 #define GETARGS_CAPSULE_NAME_CLEANUP_CONVERT "getargs.cleanup_convert"
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146
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147 static int
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148 cleanup_ptr(PyObject *self, void *ptr)
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149 {
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150 if (ptr) {
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151 PyMem_FREE(ptr);
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152 }
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153 return 0;
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154 }
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155
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156 static int
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157 cleanup_buffer(PyObject *self, void *ptr)
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158 {
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159 Py_buffer *buf = (Py_buffer *)ptr;
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160 if (buf) {
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161 PyBuffer_Release(buf);
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162 }
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163 return 0;
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164 }
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165
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166 static int
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167 addcleanup(void *ptr, freelist_t *freelist, destr_t destructor)
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168 {
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169 int index;
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170
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171 index = freelist->first_available;
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172 freelist->first_available += 1;
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173
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174 freelist->entries[index].item = ptr;
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175 freelist->entries[index].destructor = destructor;
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176
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177 return 0;
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178 }
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179
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180 static int
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181 cleanreturn(int retval, freelist_t *freelist)
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182 {
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183 int index;
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184
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185 if (retval == 0) {
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186 /* A failure occurred, therefore execute all of the cleanup
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187 functions.
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188 */
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189 for (index = 0; index < freelist->first_available; ++index) {
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190 freelist->entries[index].destructor(NULL,
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191 freelist->entries[index].item);
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192 }
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193 }
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194 PyMem_Free(freelist->entries);
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195 return retval;
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196 }
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197
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198
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199 static int
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200 vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags)
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201 {
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202 char msgbuf[256];
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203 int levels[32];
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204 const char *fname = NULL;
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205 const char *message = NULL;
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206 int min = -1;
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207 int max = 0;
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208 int level = 0;
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209 int endfmt = 0;
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210 const char *formatsave = format;
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211 Py_ssize_t i, len;
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212 char *msg;
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213 freelist_t freelist = {0, NULL};
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214 int compat = flags & FLAG_COMPAT;
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215
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216 assert(compat || (args != (PyObject*)NULL));
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217 flags = flags & ~FLAG_COMPAT;
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218
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219 while (endfmt == 0) {
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220 int c = *format++;
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221 switch (c) {
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222 case '(':
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223 if (level == 0)
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224 max++;
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225 level++;
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226 if (level >= 30)
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227 Py_FatalError("too many tuple nesting levels "
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228 "in argument format string");
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229 break;
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230 case ')':
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231 if (level == 0)
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232 Py_FatalError("excess ')' in getargs format");
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233 else
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234 level--;
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235 break;
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236 case '\0':
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237 endfmt = 1;
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238 break;
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239 case ':':
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240 fname = format;
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241 endfmt = 1;
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242 break;
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243 case ';':
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244 message = format;
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245 endfmt = 1;
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246 break;
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247 default:
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248 if (level == 0) {
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249 if (c == 'O')
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250 max++;
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251 else if (isalpha(Py_CHARMASK(c))) {
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252 if (c != 'e') /* skip encoded */
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253 max++;
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254 } else if (c == '|')
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255 min = max;
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256 }
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257 break;
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258 }
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259 }
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260
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261 if (level != 0)
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262 Py_FatalError(/* '(' */ "missing ')' in getargs format");
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263
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264 if (min < 0)
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265 min = max;
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266
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267 format = formatsave;
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268
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269 freelist.entries = PyMem_New(freelistentry_t, max);
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270
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271 if (compat) {
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272 if (max == 0) {
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273 if (args == NULL)
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274 return 1;
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275 PyErr_Format(PyExc_TypeError,
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276 "%.200s%s takes no arguments",
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277 fname==NULL ? "function" : fname,
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278 fname==NULL ? "" : "()");
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279 return cleanreturn(0, &freelist);
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280 }
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281 else if (min == 1 && max == 1) {
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282 if (args == NULL) {
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283 PyErr_Format(PyExc_TypeError,
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284 "%.200s%s takes at least one argument",
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285 fname==NULL ? "function" : fname,
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286 fname==NULL ? "" : "()");
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287 return cleanreturn(0, &freelist);
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288 }
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289 msg = convertitem(args, &format, p_va, flags, levels,
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290 msgbuf, sizeof(msgbuf), &freelist);
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291 if (msg == NULL)
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292 return cleanreturn(1, &freelist);
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293 seterror(levels[0], msg, levels+1, fname, message);
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294 return cleanreturn(0, &freelist);
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295 }
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296 else {
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297 PyErr_SetString(PyExc_SystemError,
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298 "old style getargs format uses new features");
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299 return cleanreturn(0, &freelist);
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300 }
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301 }
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302
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303 if (!PyTuple_Check(args)) {
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304 PyErr_SetString(PyExc_SystemError,
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305 "new style getargs format but argument is not a tuple");
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306 return cleanreturn(0, &freelist);
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307 }
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308
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309 len = PyTuple_GET_SIZE(args);
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310
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311 if (len < min || max < len) {
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312 if (message == NULL)
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313 PyErr_Format(PyExc_TypeError,
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314 "%.150s%s takes %s %d argument%s (%ld given)",
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315 fname==NULL ? "function" : fname,
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316 fname==NULL ? "" : "()",
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317 min==max ? "exactly"
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318 : len < min ? "at least" : "at most",
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319 len < min ? min : max,
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320 (len < min ? min : max) == 1 ? "" : "s",
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321 Py_SAFE_DOWNCAST(len, Py_ssize_t, long));
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322 else
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323 PyErr_SetString(PyExc_TypeError, message);
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324 return cleanreturn(0, &freelist);
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325 }
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326
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327 for (i = 0; i < len; i++) {
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328 if (*format == '|')
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329 format++;
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330 msg = convertitem(PyTuple_GET_ITEM(args, i), &format, p_va,
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331 flags, levels, msgbuf,
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332 sizeof(msgbuf), &freelist);
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333 if (msg) {
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334 seterror(i+1, msg, levels, fname, msg);
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335 return cleanreturn(0, &freelist);
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336 }
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337 }
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338
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339 if (*format != '\0' && !isalpha(Py_CHARMASK(*format)) &&
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340 *format != '(' &&
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341 *format != '|' && *format != ':' && *format != ';') {
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342 PyErr_Format(PyExc_SystemError,
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343 "bad format string: %.200s", formatsave);
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344 return cleanreturn(0, &freelist);
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345 }
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346
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347 return cleanreturn(1, &freelist);
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348 }
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349
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
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350
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
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351
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352 static void
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353 seterror(int iarg, const char *msg, int *levels, const char *fname,
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354 const char *message)
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355 {
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356 char buf[512];
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357 int i;
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358 char *p = buf;
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359
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360 if (PyErr_Occurred())
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361 return;
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362 else if (message == NULL) {
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363 if (fname != NULL) {
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364 PyOS_snprintf(p, sizeof(buf), "%.200s() ", fname);
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365 p += strlen(p);
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366 }
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367 if (iarg != 0) {
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368 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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369 "argument %d", iarg);
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370 i = 0;
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371 p += strlen(p);
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372 while (levels[i] > 0 && i < 32 && (int)(p-buf) < 220) {
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373 PyOS_snprintf(p, sizeof(buf) - (p - buf),
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374 ", item %d", levels[i]-1);
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375 p += strlen(p);
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376 i++;
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377 }
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378 }
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379 else {
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380 PyOS_snprintf(p, sizeof(buf) - (p - buf), "argument");
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381 p += strlen(p);
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382 }
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383 PyOS_snprintf(p, sizeof(buf) - (p - buf), " %.256s", msg);
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384 message = buf;
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385 }
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386 PyErr_SetString(PyExc_TypeError, message);
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387 }
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388
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389
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390 /* Convert a tuple argument.
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391 On entry, *p_format points to the character _after_ the opening '('.
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392 On successful exit, *p_format points to the closing ')'.
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393 If successful:
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394 *p_format and *p_va are updated,
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395 *levels and *msgbuf are untouched,
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396 and NULL is returned.
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397 If the argument is invalid:
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398 *p_format is unchanged,
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399 *p_va is undefined,
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400 *levels is a 0-terminated list of item numbers,
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401 *msgbuf contains an error message, whose format is:
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402 "must be <typename1>, not <typename2>", where:
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403 <typename1> is the name of the expected type, and
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404 <typename2> is the name of the actual type,
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405 and msgbuf is returned.
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406 */
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407
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408 static char *
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409 converttuple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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410 int *levels, char *msgbuf, size_t bufsize, int toplevel,
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411 freelist_t *freelist)
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412 {
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413 int level = 0;
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414 int n = 0;
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415 const char *format = *p_format;
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416 int i;
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417
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418 for (;;) {
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419 int c = *format++;
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420 if (c == '(') {
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421 if (level == 0)
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422 n++;
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423 level++;
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424 }
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425 else if (c == ')') {
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426 if (level == 0)
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427 break;
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428 level--;
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429 }
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430 else if (c == ':' || c == ';' || c == '\0')
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431 break;
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432 else if (level == 0 && isalpha(Py_CHARMASK(c)))
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433 n++;
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434 }
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435
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436 if (!PySequence_Check(arg) || PyBytes_Check(arg)) {
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437 levels[0] = 0;
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438 PyOS_snprintf(msgbuf, bufsize,
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439 toplevel ? "expected %d arguments, not %.50s" :
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440 "must be %d-item sequence, not %.50s",
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441 n,
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442 arg == Py_None ? "None" : arg->ob_type->tp_name);
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443 return msgbuf;
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444 }
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445
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446 if ((i = PySequence_Size(arg)) != n) {
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447 levels[0] = 0;
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448 PyOS_snprintf(msgbuf, bufsize,
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449 toplevel ? "expected %d arguments, not %d" :
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450 "must be sequence of length %d, not %d",
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451 n, i);
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452 return msgbuf;
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453 }
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454
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455 format = *p_format;
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456 for (i = 0; i < n; i++) {
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457 char *msg;
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458 PyObject *item;
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459 item = PySequence_GetItem(arg, i);
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460 if (item == NULL) {
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461 PyErr_Clear();
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462 levels[0] = i+1;
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463 levels[1] = 0;
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464 strncpy(msgbuf, "is not retrievable", bufsize);
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465 return msgbuf;
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466 }
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467 msg = convertitem(item, &format, p_va, flags, levels+1,
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468 msgbuf, bufsize, freelist);
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469 /* PySequence_GetItem calls tp->sq_item, which INCREFs */
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470 Py_XDECREF(item);
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471 if (msg != NULL) {
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472 levels[0] = i+1;
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473 return msg;
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474 }
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475 }
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476
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477 *p_format = format;
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478 return NULL;
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479 }
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480
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481
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482 /* Convert a single item. */
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483
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484 static char *
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485 convertitem(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
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486 int *levels, char *msgbuf, size_t bufsize, freelist_t *freelist)
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487 {
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488 char *msg;
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489 const char *format = *p_format;
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490
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491 if (*format == '(' /* ')' */) {
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492 format++;
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493 msg = converttuple(arg, &format, p_va, flags, levels, msgbuf,
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494 bufsize, 0, freelist);
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495 if (msg == NULL)
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496 format++;
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497 }
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498 else {
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499 msg = convertsimple(arg, &format, p_va, flags,
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500 msgbuf, bufsize, freelist);
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501 if (msg != NULL)
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502 levels[0] = 0;
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503 }
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504 if (msg == NULL)
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505 *p_format = format;
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506 return msg;
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507 }
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508
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509
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parents:
diff changeset
510
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diff changeset
511 /* Format an error message generated by convertsimple(). */
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512
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513 static char *
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
514 converterr(const char *expected, PyObject *arg, char *msgbuf, size_t bufsize)
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515 {
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516 assert(expected != NULL);
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517 assert(arg != NULL);
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518 PyOS_snprintf(msgbuf, bufsize,
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519 "must be %.50s, not %.50s", expected,
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520 arg == Py_None ? "None" : arg->ob_type->tp_name);
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521 return msgbuf;
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522 }
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523
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diff changeset
524 #define CONV_UNICODE "(unicode conversion error)"
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525
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526 /* Explicitly check for float arguments when integers are expected.
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diff changeset
527 Return 1 for error, 0 if ok. */
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
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528 static int
9e47f9ed49f6 If a float is passed where a int is expected, issue a DeprecationWarning
Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff changeset
529 float_argument_error(PyObject *arg)
9e47f9ed49f6 If a float is passed where a int is expected, issue a DeprecationWarning
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diff changeset
530 {
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531 if (PyFloat_Check(arg)) {
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532 PyErr_SetString(PyExc_TypeError,
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533 "integer argument expected, got float" );
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534 return 1;
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535 }
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536 else
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537 return 0;
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538 }
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539
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540 /* Convert a non-tuple argument. Return NULL if conversion went OK,
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541 or a string with a message describing the failure. The message is
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542 formatted as "must be <desired type>, not <actual type>".
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543 When failing, an exception may or may not have been raised.
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
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544 Don't call if a tuple is expected.
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Georg Brandl <georg@python.org>
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diff changeset
545
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
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diff changeset
546 When you add new format codes, please don't forget poor skipitem() below.
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547 */
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diff changeset
548
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diff changeset
549 static char *
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550 convertsimple(PyObject *arg, const char **p_format, va_list *p_va, int flags,
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9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
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551 char *msgbuf, size_t bufsize, freelist_t *freelist)
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552 {
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553 /* For # codes */
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554 #define FETCH_SIZE int *q=NULL;Py_ssize_t *q2=NULL;\
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555 if (flags & FLAG_SIZE_T) q2=va_arg(*p_va, Py_ssize_t*); \
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556 else q=va_arg(*p_va, int*);
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557 #define STORE_SIZE(s) \
d9633064458c Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file
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558 if (flags & FLAG_SIZE_T) \
d9633064458c Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file
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559 *q2=s; \
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560 else { \
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561 if (INT_MAX < s) { \
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562 PyErr_SetString(PyExc_OverflowError, \
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563 "size does not fit in an int"); \
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564 return converterr("", arg, msgbuf, bufsize); \
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565 } \
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566 *q=s; \
d9633064458c Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file
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diff changeset
567 }
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diff changeset
568 #define BUFFER_LEN ((flags & FLAG_SIZE_T) ? *q2:*q)
67346
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569 #define RETURN_ERR_OCCURRED return msgbuf
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diff changeset
570
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571 const char *format = *p_format;
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572 char c = *format++;
72475
8beaa9a37387 Implement PEP 393.
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parents: 71543
diff changeset
573 char *sarg;
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574
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575 switch (c) {
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576
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577 case 'b': { /* unsigned byte -- very short int */
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578 char *p = va_arg(*p_va, char *);
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diff changeset
579 long ival;
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580 if (float_argument_error(arg))
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581 RETURN_ERR_OCCURRED;
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582 ival = PyLong_AsLong(arg);
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583 if (ival == -1 && PyErr_Occurred())
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584 RETURN_ERR_OCCURRED;
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585 else if (ival < 0) {
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586 PyErr_SetString(PyExc_OverflowError,
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587 "unsigned byte integer is less than minimum");
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
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588 RETURN_ERR_OCCURRED;
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589 }
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590 else if (ival > UCHAR_MAX) {
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591 PyErr_SetString(PyExc_OverflowError,
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592 "unsigned byte integer is greater than maximum");
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
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593 RETURN_ERR_OCCURRED;
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594 }
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595 else
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596 *p = (unsigned char) ival;
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597 break;
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598 }
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599
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600 case 'B': {/* byte sized bitfield - both signed and unsigned
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601 values allowed */
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602 char *p = va_arg(*p_va, char *);
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603 long ival;
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604 if (float_argument_error(arg))
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605 RETURN_ERR_OCCURRED;
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606 ival = PyLong_AsUnsignedLongMask(arg);
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607 if (ival == -1 && PyErr_Occurred())
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608 RETURN_ERR_OCCURRED;
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609 else
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610 *p = (unsigned char) ival;
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611 break;
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612 }
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613
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614 case 'h': {/* signed short int */
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615 short *p = va_arg(*p_va, short *);
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616 long ival;
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617 if (float_argument_error(arg))
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618 RETURN_ERR_OCCURRED;
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619 ival = PyLong_AsLong(arg);
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620 if (ival == -1 && PyErr_Occurred())
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621 RETURN_ERR_OCCURRED;
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622 else if (ival < SHRT_MIN) {
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623 PyErr_SetString(PyExc_OverflowError,
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624 "signed short integer is less than minimum");
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625 RETURN_ERR_OCCURRED;
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626 }
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627 else if (ival > SHRT_MAX) {
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628 PyErr_SetString(PyExc_OverflowError,
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629 "signed short integer is greater than maximum");
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630 RETURN_ERR_OCCURRED;
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631 }
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632 else
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633 *p = (short) ival;
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634 break;
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635 }
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636
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637 case 'H': { /* short int sized bitfield, both signed and
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638 unsigned allowed */
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639 unsigned short *p = va_arg(*p_va, unsigned short *);
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640 long ival;
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641 if (float_argument_error(arg))
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642 RETURN_ERR_OCCURRED;
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643 ival = PyLong_AsUnsignedLongMask(arg);
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644 if (ival == -1 && PyErr_Occurred())
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645 RETURN_ERR_OCCURRED;
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646 else
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647 *p = (unsigned short) ival;
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648 break;
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649 }
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650
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651 case 'i': {/* signed int */
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652 int *p = va_arg(*p_va, int *);
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653 long ival;
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654 if (float_argument_error(arg))
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655 RETURN_ERR_OCCURRED;
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656 ival = PyLong_AsLong(arg);
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657 if (ival == -1 && PyErr_Occurred())
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658 RETURN_ERR_OCCURRED;
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659 else if (ival > INT_MAX) {
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660 PyErr_SetString(PyExc_OverflowError,
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661 "signed integer is greater than maximum");
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662 RETURN_ERR_OCCURRED;
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663 }
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664 else if (ival < INT_MIN) {
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665 PyErr_SetString(PyExc_OverflowError,
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666 "signed integer is less than minimum");
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667 RETURN_ERR_OCCURRED;
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668 }
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669 else
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670 *p = ival;
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671 break;
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672 }
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
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673
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674 case 'I': { /* int sized bitfield, both signed and
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675 unsigned allowed */
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676 unsigned int *p = va_arg(*p_va, unsigned int *);
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677 unsigned int ival;
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678 if (float_argument_error(arg))
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679 RETURN_ERR_OCCURRED;
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680 ival = (unsigned int)PyLong_AsUnsignedLongMask(arg);
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681 if (ival == (unsigned int)-1 && PyErr_Occurred())
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682 RETURN_ERR_OCCURRED;
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683 else
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684 *p = ival;
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685 break;
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686 }
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687
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688 case 'n': /* Py_ssize_t */
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689 {
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690 PyObject *iobj;
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691 Py_ssize_t *p = va_arg(*p_va, Py_ssize_t *);
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692 Py_ssize_t ival = -1;
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693 if (float_argument_error(arg))
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694 RETURN_ERR_OCCURRED;
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695 iobj = PyNumber_Index(arg);
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696 if (iobj != NULL) {
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697 ival = PyLong_AsSsize_t(iobj);
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698 Py_DECREF(iobj);
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699 }
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700 if (ival == -1 && PyErr_Occurred())
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701 RETURN_ERR_OCCURRED;
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702 *p = ival;
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703 break;
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704 }
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705 case 'l': {/* long int */
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706 long *p = va_arg(*p_va, long *);
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707 long ival;
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708 if (float_argument_error(arg))
67346
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709 RETURN_ERR_OCCURRED;
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710 ival = PyLong_AsLong(arg);
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711 if (ival == -1 && PyErr_Occurred())
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712 RETURN_ERR_OCCURRED;
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713 else
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714 *p = ival;
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715 break;
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716 }
28652
28a2975514cd SF # 595026: support for masks in getargs.c.
Thomas Heller <theller@ctypes.org>
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diff changeset
717
61467
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718 case 'k': { /* long sized bitfield */
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719 unsigned long *p = va_arg(*p_va, unsigned long *);
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720 unsigned long ival;
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721 if (PyLong_Check(arg))
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722 ival = PyLong_AsUnsignedLongMask(arg);
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723 else
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724 return converterr("integer<k>", arg, msgbuf, bufsize);
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725 *p = ival;
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726 break;
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727 }
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728
9949
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Guido van Rossum <guido@python.org>
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729 #ifdef HAVE_LONG_LONG
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730 case 'L': {/* PY_LONG_LONG */
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731 PY_LONG_LONG *p = va_arg( *p_va, PY_LONG_LONG * );
61466
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732 PY_LONG_LONG ival;
62221
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Mark Dickinson <dickinsm@gmail.com>
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733 if (float_argument_error(arg))
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734 RETURN_ERR_OCCURRED;
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735 ival = PyLong_AsLongLong(arg);
62221
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Mark Dickinson <dickinsm@gmail.com>
parents: 62202
diff changeset
736 if (ival == (PY_LONG_LONG)-1 && PyErr_Occurred())
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737 RETURN_ERR_OCCURRED;
62221
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Mark Dickinson <dickinsm@gmail.com>
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738 else
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739 *p = ival;
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740 break;
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741 }
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diff changeset
742
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743 case 'K': { /* long long sized bitfield */
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744 unsigned PY_LONG_LONG *p = va_arg(*p_va, unsigned PY_LONG_LONG *);
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745 unsigned PY_LONG_LONG ival;
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746 if (PyLong_Check(arg))
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747 ival = PyLong_AsUnsignedLongLongMask(arg);
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748 else
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749 return converterr("integer<K>", arg, msgbuf, bufsize);
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750 *p = ival;
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751 break;
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752 }
8822
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753 #endif
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754
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755 case 'f': {/* float */
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756 float *p = va_arg(*p_va, float *);
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diff changeset
757 double dval = PyFloat_AsDouble(arg);
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diff changeset
758 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
759 RETURN_ERR_OCCURRED;
61467
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diff changeset
760 else
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diff changeset
761 *p = (float) dval;
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diff changeset
762 break;
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diff changeset
763 }
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
764
61467
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diff changeset
765 case 'd': {/* double */
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diff changeset
766 double *p = va_arg(*p_va, double *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
767 double dval = PyFloat_AsDouble(arg);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
768 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
769 RETURN_ERR_OCCURRED;
61467
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diff changeset
770 else
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diff changeset
771 *p = dval;
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diff changeset
772 break;
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diff changeset
773 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
774
61467
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diff changeset
775 case 'D': {/* complex double */
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diff changeset
776 Py_complex *p = va_arg(*p_va, Py_complex *);
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diff changeset
777 Py_complex cval;
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diff changeset
778 cval = PyComplex_AsCComplex(arg);
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diff changeset
779 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
780 RETURN_ERR_OCCURRED;
61467
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diff changeset
781 else
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diff changeset
782 *p = cval;
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diff changeset
783 break;
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diff changeset
784 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
785
61467
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diff changeset
786 case 'c': {/* char */
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diff changeset
787 char *p = va_arg(*p_va, char *);
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diff changeset
788 if (PyBytes_Check(arg) && PyBytes_Size(arg) == 1)
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parents: 57549
diff changeset
789 *p = PyBytes_AS_STRING(arg)[0];
71543
536fccc75f5a Issue #12380: PyArg_ParseTuple now accepts a bytearray for the 'c' format.
Eli Bendersky <eliben@gmail.com>
parents: 68809
diff changeset
790 else if (PyByteArray_Check(arg) && PyByteArray_Size(arg) == 1)
536fccc75f5a Issue #12380: PyArg_ParseTuple now accepts a bytearray for the 'c' format.
Eli Bendersky <eliben@gmail.com>
parents: 68809
diff changeset
791 *p = PyByteArray_AS_STRING(arg)[0];
61467
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diff changeset
792 else
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diff changeset
793 return converterr("a byte string of length 1", arg, msgbuf, bufsize);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
794 break;
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diff changeset
795 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
796
61467
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diff changeset
797 case 'C': {/* unicode char */
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diff changeset
798 int *p = va_arg(*p_va, int *);
72679
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
799 int kind;
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
800 void *data;
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
801
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
802 if (!PyUnicode_Check(arg))
61467
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diff changeset
803 return converterr("a unicode character", arg, msgbuf, bufsize);
72679
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
804
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
805 if (PyUnicode_READY(arg))
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
806 RETURN_ERR_OCCURRED;
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
807
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
808 if (PyUnicode_GET_LENGTH(arg) != 1)
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
809 return converterr("a unicode character", arg, msgbuf, bufsize);
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
810
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
811 kind = PyUnicode_KIND(arg);
b66033a0f140 Fix usage og PyUnicode_READY()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
812 data = PyUnicode_DATA(arg);
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 72475
diff changeset
813 *p = PyUnicode_READ(kind, data, 0);
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814 break;
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815 }
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
816
62202
d7113cacd428 Issue #8838, #8339: Remove codecs.charbuffer_encode() and "t#" parsing format
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62197
diff changeset
817 /* XXX WAAAAH! 's', 'y', 'z', 'u', 'Z', 'e', 'w' codes all
61467
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818 need to be cleaned up! */
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diff changeset
819
61467
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diff changeset
820 case 'y': {/* any buffer-like object, but not PyUnicode */
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diff changeset
821 void **p = (void **)va_arg(*p_va, char **);
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diff changeset
822 char *buf;
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diff changeset
823 Py_ssize_t count;
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diff changeset
824 if (*format == '*') {
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diff changeset
825 if (getbuffer(arg, (Py_buffer*)p, &buf) < 0)
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diff changeset
826 return converterr(buf, arg, msgbuf, bufsize);
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diff changeset
827 format++;
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
828 if (addcleanup(p, freelist, cleanup_buffer)) {
61467
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diff changeset
829 return converterr(
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diff changeset
830 "(cleanup problem)",
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diff changeset
831 arg, msgbuf, bufsize);
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diff changeset
832 }
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diff changeset
833 break;
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diff changeset
834 }
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diff changeset
835 count = convertbuffer(arg, p, &buf);
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diff changeset
836 if (count < 0)
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diff changeset
837 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
838 if (*format == '#') {
61467
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diff changeset
839 FETCH_SIZE;
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diff changeset
840 STORE_SIZE(count);
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diff changeset
841 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
842 } 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
843 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
844 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
845 "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
846 arg, msgbuf, bufsize);
61467
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diff changeset
847 }
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diff changeset
848 break;
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diff changeset
849 }
41611
c48fe4dc34a9 Change UnicodeDecodeError objects so that the 'object' attribute
Walter Dörwald <walter@livinglogic.de>
parents: 41596
diff changeset
850
62478
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
851 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
852 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
853 {
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diff changeset
854 if (*format == '*') {
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
855 /* "s*" or "z*" */
61467
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diff changeset
856 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
857
62478
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diff changeset
858 if (c == 'z' && arg == Py_None)
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diff changeset
859 PyBuffer_FillInfo(p, NULL, NULL, 0, 1, 0);
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diff changeset
860 else if (PyUnicode_Check(arg)) {
72475
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71543
diff changeset
861 Py_ssize_t len;
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71543
diff changeset
862 sarg = PyUnicode_AsUTF8AndSize(arg, &len);
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Martin v. Löwis <martin@v.loewis.de>
parents: 71543
diff changeset
863 if (sarg == NULL)
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diff changeset
864 return converterr(CONV_UNICODE,
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diff changeset
865 arg, msgbuf, bufsize);
72475
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71543
diff changeset
866 PyBuffer_FillInfo(p, arg, sarg, len, 1, 0);
61467
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diff changeset
867 }
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diff changeset
868 else { /* any buffer-like object */
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diff changeset
869 char *buf;
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diff changeset
870 if (getbuffer(arg, p, &buf) < 0)
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diff changeset
871 return converterr(buf, arg, msgbuf, bufsize);
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diff changeset
872 }
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
873 if (addcleanup(p, freelist, cleanup_buffer)) {
61467
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diff changeset
874 return converterr(
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diff changeset
875 "(cleanup problem)",
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diff changeset
876 arg, msgbuf, bufsize);
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diff changeset
877 }
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diff changeset
878 format++;
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diff changeset
879 } else if (*format == '#') { /* any buffer-like object */
62478
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62476
diff changeset
880 /* "s#" or "z#" */
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diff changeset
881 void **p = (void **)va_arg(*p_va, char **);
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diff changeset
882 FETCH_SIZE;
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Guido van Rossum <guido@python.org>
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diff changeset
883
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diff changeset
884 if (c == 'z' && arg == Py_None) {
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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885 *p = NULL;
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886 STORE_SIZE(0);
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887 }
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888 else if (PyUnicode_Check(arg)) {
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Martin v. Löwis <martin@v.loewis.de>
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diff changeset
889 Py_ssize_t len;
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71543
diff changeset
890 sarg = PyUnicode_AsUTF8AndSize(arg, &len);
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
891 if (sarg == NULL)
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892 return converterr(CONV_UNICODE,
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diff changeset
893 arg, msgbuf, bufsize);
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Martin v. Löwis <martin@v.loewis.de>
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diff changeset
894 *p = sarg;
8beaa9a37387 Implement PEP 393.
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diff changeset
895 STORE_SIZE(len);
61467
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896 }
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897 else { /* any buffer-like object */
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898 /* XXX Really? */
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diff changeset
899 char *buf;
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900 Py_ssize_t count = convertbuffer(arg, p, &buf);
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diff changeset
901 if (count < 0)
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902 return converterr(buf, arg, msgbuf, bufsize);
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diff changeset
903 STORE_SIZE(count);
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diff changeset
904 }
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905 format++;
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906 } else {
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907 /* "s" or "z" */
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908 char **p = va_arg(*p_va, char **);
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909 Py_ssize_t len;
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diff changeset
910 sarg = NULL;
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911
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912 if (c == 'z' && arg == Py_None)
893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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913 *p = NULL;
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914 else if (PyUnicode_Check(arg)) {
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Martin v. Löwis <martin@v.loewis.de>
parents: 71543
diff changeset
915 sarg = PyUnicode_AsUTF8AndSize(arg, &len);
8beaa9a37387 Implement PEP 393.
Martin v. Löwis <martin@v.loewis.de>
parents: 71543
diff changeset
916 if (sarg == NULL)
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917 return converterr(CONV_UNICODE,
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diff changeset
918 arg, msgbuf, bufsize);
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diff changeset
919 *p = sarg;
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920 }
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921 else
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893970141608 PyArg_Parse*() functions: factorize code for s/z and u/Z formats
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diff changeset
922 return converterr(c == 'z' ? "str or None" : "str",
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923 arg, msgbuf, bufsize);
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924 if (*p != NULL && sarg != NULL && (Py_ssize_t) strlen(*p) != len)
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diff changeset
925 return converterr(
72915
9685f893fffe convertsimple(): "str without bytes" => "str without characters"
Victor Stinner <victor.stinner@haypocalc.com>
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diff changeset
926 c == 'z' ? "str without null characters or None"
9685f893fffe convertsimple(): "str without bytes" => "str without characters"
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72861
diff changeset
927 : "str without null characters",
61467
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diff changeset
928 arg, msgbuf, bufsize);
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929 }
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930 break;
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931 }
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diff changeset
932
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diff changeset
933 case 'u': /* raw unicode buffer (Py_UNICODE *) */
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934 case 'Z': /* raw unicode buffer or 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
935 {
68102
e2f96bd29252 Issue #8914: fix various warnings from the Clang static analyzer v254.
Brett Cannon <bcannon@gmail.com>
parents: 67346
diff changeset
936 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
937
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938 if (*format == '#') { /* any buffer-like object */
62478
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diff changeset
939 /* "s#" or "Z#" */
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940 FETCH_SIZE;
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941
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diff changeset
942 if (c == 'Z' && arg == Py_None) {
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diff changeset
943 *p = NULL;
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944 STORE_SIZE(0);
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945 }
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946 else if (PyUnicode_Check(arg)) {
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diff changeset
947 Py_ssize_t len;
6358e5d29dea Use PyUnicode_AsUnicodeAndSize() instead of PyUnicode_GET_SIZE()
Victor Stinner <victor.stinner@haypocalc.com>
parents: 72679
diff changeset
948 *p = PyUnicode_AsUnicodeAndSize(arg, &len);
72475
8beaa9a37387 Implement PEP 393.
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diff changeset
949 if (*p == NULL)
8beaa9a37387 Implement PEP 393.
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parents: 71543
diff changeset
950 RETURN_ERR_OCCURRED;
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diff changeset
951 STORE_SIZE(len);
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952 }
62198
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953 else
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954 return converterr("str or None", arg, msgbuf, bufsize);
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955 format++;
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956 } else {
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957 /* "s" or "Z" */
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958 if (c == 'Z' && arg == Py_None)
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959 *p = NULL;
62322
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
Victor Stinner <victor.stinner@haypocalc.com>
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960 else if (PyUnicode_Check(arg)) {
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961 Py_ssize_t len;
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962 *p = PyUnicode_AsUnicodeAndSize(arg, &len);
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963 if (*p == NULL)
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964 RETURN_ERR_OCCURRED;
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diff changeset
965 if (Py_UNICODE_strlen(*p) != len)
62322
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Victor Stinner <victor.stinner@haypocalc.com>
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diff changeset
966 return converterr(
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967 "str without null characters or None",
62322
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diff changeset
968 arg, msgbuf, bufsize);
b32a2816f6e9 Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z"
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969 } else
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970 return converterr(c == 'Z' ? "str or None" : "str",
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diff changeset
971 arg, msgbuf, bufsize);
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972 }
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973 break;
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974 }
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975
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976 case 'e': {/* encoded string */
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977 char **buffer;
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978 const char *encoding;
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979 PyObject *s;
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980 int recode_strings;
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981 Py_ssize_t size;
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diff changeset
982 const char *ptr;
12051
d89556c04ef9 Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
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diff changeset
983
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984 /* Get 'e' parameter: the encoding name */
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985 encoding = (const char *)va_arg(*p_va, const char *);
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986 if (encoding == NULL)
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987 encoding = PyUnicode_GetDefaultEncoding();
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988
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989 /* Get output buffer parameter:
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990 's' (recode all objects via Unicode) or
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991 't' (only recode non-string objects)
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992 */
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993 if (*format == 's')
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994 recode_strings = 1;
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995 else if (*format == 't')
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996 recode_strings = 0;
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997 else
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998 return converterr(
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999 "(unknown parser marker combination)",
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1000 arg, msgbuf, bufsize);
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1001 buffer = (char **)va_arg(*p_va, char **);
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1002 format++;
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1003 if (buffer == NULL)
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1004 return converterr("(buffer is NULL)",
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1005 arg, msgbuf, bufsize);
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1006
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1007 /* Encode object */
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1008 if (!recode_strings &&
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1009 (PyBytes_Check(arg) || PyByteArray_Check(arg))) {
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1010 s = arg;
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1011 Py_INCREF(s);
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1012 if (PyObject_AsCharBuffer(s, &ptr, &size) < 0)
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1013 return converterr("(AsCharBuffer failed)",
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1014 arg, msgbuf, bufsize);
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1015 }
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1016 else {
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1017 PyObject *u;
19343
7257e87e0720 Patch #445762: Support --disable-unicode
Martin v. Löwis <martin@v.loewis.de>
parents: 18887
diff changeset
1018
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1019 /* Convert object to Unicode */
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1020 u = PyUnicode_FromObject(arg);
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1021 if (u == NULL)
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1022 return converterr(
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1023 "string or unicode or text buffer",
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1024 arg, msgbuf, bufsize);
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1025
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1026 /* Encode object; use default error handling */
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1027 s = PyUnicode_AsEncodedString(u,
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1028 encoding,
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1029 NULL);
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1030 Py_DECREF(u);
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1031 if (s == NULL)
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1032 return converterr("(encoding failed)",
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1033 arg, msgbuf, bufsize);
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1034 if (!PyBytes_Check(s)) {
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1035 Py_DECREF(s);
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1036 return converterr(
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1037 "(encoder failed to return bytes)",
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1038 arg, msgbuf, bufsize);
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1039 }
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1040 size = PyBytes_GET_SIZE(s);
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1041 ptr = PyBytes_AS_STRING(s);
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1042 if (ptr == NULL)
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1043 ptr = "";
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1044 }
12051
d89556c04ef9 Marc-Andre Lemburg:
Guido van Rossum <guido@python.org>
parents: 11975
diff changeset
1045
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1046 /* Write output; output is guaranteed to be 0-terminated */
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1047 if (*format == '#') {
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1048 /* Using buffer length parameter '#':
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1049
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1050 - if *buffer is NULL, a new buffer of the
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1051 needed size is allocated and the data
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1052 copied into it; *buffer is updated to point
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1053 to the new buffer; the caller is
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1054 responsible for PyMem_Free()ing it after
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1055 usage
12051
d89556c04ef9 Marc-Andre Lemburg:
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1056
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1057 - if *buffer is not NULL, the data is
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1058 copied to *buffer; *buffer_len has to be
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1059 set to the size of the buffer on input;
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1060 buffer overflow is signalled with an error;
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1061 buffer has to provide enough room for the
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1062 encoded string plus the trailing 0-byte
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1063
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1064 - in both cases, *buffer_len is updated to
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1065 the size of the buffer /excluding/ the
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1066 trailing 0-byte
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1067
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1068 */
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1069 FETCH_SIZE;
12051
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Guido van Rossum <guido@python.org>
parents: 11975
diff changeset
1070
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1071 format++;
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1072 if (q == NULL && q2 == NULL) {
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1073 Py_DECREF(s);
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1074 return converterr(
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1075 "(buffer_len is NULL)",
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1076 arg, msgbuf, bufsize);
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1077 }
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1078 if (*buffer == NULL) {
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1079 *buffer = PyMem_NEW(char, size + 1);
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1080 if (*buffer == NULL) {
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1081 Py_DECREF(s);
62151
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 62149
diff changeset
1082 PyErr_NoMemory();
67346
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1083 RETURN_ERR_OCCURRED;
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1084 }
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1085 if (addcleanup(*buffer, freelist, cleanup_ptr)) {
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1086 Py_DECREF(s);
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diff changeset
1087 return converterr(
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1088 "(cleanup problem)",
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1089 arg, msgbuf, bufsize);
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1090 }
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1091 } else {
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1092 if (size + 1 > BUFFER_LEN) {
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1093 Py_DECREF(s);
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1094 return converterr(
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1095 "(buffer overflow)",
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1096 arg, msgbuf, bufsize);
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1097 }
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1098 }
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1099 memcpy(*buffer, ptr, size+1);
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1100 STORE_SIZE(size);
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1101 } else {
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1102 /* Using a 0-terminated buffer:
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1103
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1104 - the encoded string has to be 0-terminated
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1105 for this variant to work; if it is not, an
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1106 error raised
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1107
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1108 - a new buffer of the needed size is
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1109 allocated and the data copied into it;
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1110 *buffer is updated to point to the new
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1111 buffer; the caller is responsible for
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1112 PyMem_Free()ing it after usage
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Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
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1113
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1114 */
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1115 if ((Py_ssize_t)strlen(ptr) != size) {
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1116 Py_DECREF(s);
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1117 return converterr(
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1118 "encoded string without NULL bytes",
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1119 arg, msgbuf, bufsize);
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1120 }
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1121 *buffer = PyMem_NEW(char, size + 1);
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1122 if (*buffer == NULL) {
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1123 Py_DECREF(s);
62151
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Victor Stinner <victor.stinner@haypocalc.com>
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1124 PyErr_NoMemory();
67346
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
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1125 RETURN_ERR_OCCURRED;
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1126 }
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1127 if (addcleanup(*buffer, freelist, cleanup_ptr)) {
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1128 Py_DECREF(s);
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1129 return converterr("(cleanup problem)",
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1130 arg, msgbuf, bufsize);
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1131 }
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1132 memcpy(*buffer, ptr, size+1);
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1133 }
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1134 Py_DECREF(s);
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1135 break;
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1136 }
12570
3dbe41380266 Brian Hooper <brian_takashi@hotmail.com>:
Fred Drake <fdrake@acm.org>
parents: 12510
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1137
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1138 case 'S': { /* PyBytes object */
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1139 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1140 if (PyBytes_Check(arg))
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diff changeset
1141 *p = arg;
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diff changeset
1142 else
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diff changeset
1143 return converterr("bytes", arg, msgbuf, bufsize);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1144 break;
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diff changeset
1145 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1146
61467
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diff changeset
1147 case 'Y': { /* PyByteArray object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1148 PyObject **p = va_arg(*p_va, PyObject **);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1149 if (PyByteArray_Check(arg))
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diff changeset
1150 *p = arg;
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diff changeset
1151 else
62198
b2c1995633bd Merged revisions 81849 via svnmerge from
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parents: 61467
diff changeset
1152 return converterr("bytearray", arg, msgbuf, bufsize);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1153 break;
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diff changeset
1154 }
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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
1155
61467
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diff changeset
1156 case 'U': { /* PyUnicode object */
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diff changeset
1157 PyObject **p = va_arg(*p_va, PyObject **);
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diff changeset
1158 if (PyUnicode_Check(arg))
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diff changeset
1159 *p = arg;
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diff changeset
1160 else
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diff changeset
1161 return converterr("str", arg, msgbuf, bufsize);
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diff changeset
1162 break;
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diff changeset
1163 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1164
61467
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diff changeset
1165 case 'O': { /* object */
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diff changeset
1166 PyTypeObject *type;
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diff changeset
1167 PyObject **p;
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parents: 57549
diff changeset
1168 if (*format == '!') {
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parents: 57549
diff changeset
1169 type = va_arg(*p_va, PyTypeObject*);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1170 p = va_arg(*p_va, PyObject **);
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diff changeset
1171 format++;
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diff changeset
1172 if (PyType_IsSubtype(arg->ob_type, type))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1173 *p = arg;
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parents: 57549
diff changeset
1174 else
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parents: 57549
diff changeset
1175 return converterr(type->tp_name, arg, msgbuf, bufsize);
8358
da4bdceeaad7 Another veeeeeery old patch...
Guido van Rossum <guido@python.org>
parents: 7982
diff changeset
1176
61467
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diff changeset
1177 }
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diff changeset
1178 else if (*format == '&') {
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parents: 57549
diff changeset
1179 typedef int (*converter)(PyObject *, void *);
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parents: 57549
diff changeset
1180 converter convert = va_arg(*p_va, converter);
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diff changeset
1181 void *addr = va_arg(*p_va, void *);
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diff changeset
1182 int res;
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diff changeset
1183 format++;
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diff changeset
1184 if (! (res = (*convert)(arg, addr)))
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parents: 57549
diff changeset
1185 return converterr("(unspecified)",
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diff changeset
1186 arg, msgbuf, bufsize);
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diff changeset
1187 if (res == Py_CLEANUP_SUPPORTED &&
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1188 addcleanup(addr, freelist, convert) == -1)
61467
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diff changeset
1189 return converterr("(cleanup problem)",
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diff changeset
1190 arg, msgbuf, bufsize);
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diff changeset
1191 }
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1192 else {
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diff changeset
1193 p = va_arg(*p_va, PyObject **);
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diff changeset
1194 *p = arg;
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diff changeset
1195 }
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1196 break;
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1197 }
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1198
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1199
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1200 case 'w': { /* "w*": memory buffer, read-write access */
61467
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diff changeset
1201 void **p = va_arg(*p_va, void **);
48683
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1202
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1203 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
1204 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
1205 "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
1206 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
1207 format++;
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1208
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1209 /* 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
1210 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
1211 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
1212 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
1213 return converterr("read-write buffer", arg, msgbuf, bufsize);
61467
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diff changeset
1214 }
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1215 if (!PyBuffer_IsContiguous((Py_buffer*)p, 'C')) {
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1216 PyBuffer_Release((Py_buffer*)p);
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1217 return converterr("contiguous buffer", arg, msgbuf, bufsize);
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1218 }
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1219 if (addcleanup(p, freelist, cleanup_buffer)) {
61467
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parents: 57549
diff changeset
1220 return converterr(
62484
bcc0e825faa0 Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62482
diff changeset
1221 "(cleanup problem)",
61467
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diff changeset
1222 arg, msgbuf, bufsize);
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parents: 57549
diff changeset
1223 }
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diff changeset
1224 break;
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diff changeset
1225 }
9306
79439e4e9976 Implement new format character 't#'. This is like s#, accepting an
Guido van Rossum <guido@python.org>
parents: 9044
diff changeset
1226
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1227 default:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1228 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
1229
61467
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diff changeset
1230 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1231
61467
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diff changeset
1232 *p_format = format;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1233 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
1234
98c8aa237fc1 Issue #8992: convertsimple() doesn't need to fill msgbuf if an error occurred
Victor Stinner <victor.stinner@haypocalc.com>
parents: 67345
diff changeset
1235 #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
1236 #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
1237 #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
1238 #undef RETURN_ERR_OCCURRED
1913
8623aa3915db * Python/{modsupport.c,getargs.c,Makefile.in},
Guido van Rossum <guido@python.org>
parents:
diff changeset
1239 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1240
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1241 static Py_ssize_t
20629
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1242 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
1243 {
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1244 PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer;
61467
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diff changeset
1245 Py_ssize_t count;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1246 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
1247
61467
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diff changeset
1248 *errmsg = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1249 *p = NULL;
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1250 if (pb != NULL && pb->bf_releasebuffer != NULL) {
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1251 *errmsg = "read-only pinned buffer";
61467
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diff changeset
1252 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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1253 }
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
1254
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1255 if (getbuffer(arg, &view, errmsg) < 0)
61467
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diff changeset
1256 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1257 count = view.len;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1258 *p = view.buf;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1259 PyBuffer_Release(&view);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1260 return count;
17996
5a9debb14440 Internal refactoring of convertsimple() and friends.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 17857
diff changeset
1261 }
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1262
48683
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Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1263 static int
48848
5c75a33ef5b2 Merged revisions 66006 via svnmerge from
Neal Norwitz <nnorwitz@gmail.com>
parents: 48683
diff changeset
1264 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
1265 {
63259
ac7eb6eaef68 Issue #8991: convertbuffer() rejects discontigious buffers
Victor Stinner <victor.stinner@haypocalc.com>
parents: 62484
diff changeset
1266 if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) {
61467
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parents: 57549
diff changeset
1267 *errmsg = "bytes or buffer";
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1268 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1269 }
62149
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1270 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
1271 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
1272 *errmsg = "contiguous buffer";
9d49b744078c Simplify getbuffer(): convertbuffer() fails anyway if bf_getbuffer is NULL
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61972
diff changeset
1273 return -1;
61467
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diff changeset
1274 }
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diff changeset
1275 return 0;
48683
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1276 }
cd3b0b7fd8e1 Merged revisions 65654 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 48660
diff changeset
1277
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1278 /* 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
1279 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
1280
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
parents: 20710
diff changeset
1281 /* 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
1282 int
acc7e3b4d042 Style conformance: function name begins a new line *consistently*.
Fred Drake <fdrake@acm.org>
parents: 20371
diff changeset
1283 PyArg_ParseTupleAndKeywords(PyObject *args,
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1284 PyObject *keywords,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1285 const char *format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1286 char **kwlist, ...)
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1287 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1288 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1289 va_list va;
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1290
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1291 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1292 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1293 format == NULL ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1294 kwlist == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1295 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1296 PyErr_BadInternalCall();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1297 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1298 }
20710
a44cc0c21cfe PyArg_ParseTupleAndKeywords: do basic sanity checks on the arguments,
Tim Peters <tim.peters@gmail.com>
parents: 20709
diff changeset
1299
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1300 va_start(va, kwlist);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1301 retval = vgetargskeywords(args, keywords, format, kwlist, &va, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1302 va_end(va);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1303 return retval;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1304 }
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1305
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1306 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1307 _PyArg_ParseTupleAndKeywords_SizeT(PyObject *args,
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1308 PyObject *keywords,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1309 const char *format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1310 char **kwlist, ...)
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1311 {
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1312 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1313 va_list va;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1314
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1315 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1316 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1317 format == NULL ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1318 kwlist == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1319 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1320 PyErr_BadInternalCall();
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1321 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1322 }
36501
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diff changeset
1323
61467
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diff changeset
1324 va_start(va, kwlist);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1325 retval = vgetargskeywords(args, keywords, format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1326 kwlist, &va, FLAG_SIZE_T);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1327 va_end(va);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1328 return retval;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1329 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1330
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1331
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1332 int
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1333 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
1334 PyObject *keywords,
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1335 const char *format,
36675
dba6494735d0 Revert backwards-incompatible const changes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36625
diff changeset
1336 char **kwlist, va_list va)
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1337 {
61467
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diff changeset
1338 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1339 va_list lva;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1340
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1341 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1342 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1343 format == NULL ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1344 kwlist == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1345 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1346 PyErr_BadInternalCall();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1347 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1348 }
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1349
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
1350 Py_VA_COPY(lva, va);
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1351
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1352 retval = vgetargskeywords(args, keywords, format, kwlist, &lva, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1353 return retval;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1354 }
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1355
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
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diff changeset
1356 int
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1357 _PyArg_VaParseTupleAndKeywords_SizeT(PyObject *args,
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1358 PyObject *keywords,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1359 const char *format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1360 char **kwlist, va_list va)
36501
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parents: 36345
diff changeset
1361 {
61467
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1362 int retval;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1363 va_list lva;
36501
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parents: 36345
diff changeset
1364
61467
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1365 if ((args == NULL || !PyTuple_Check(args)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1366 (keywords != NULL && !PyDict_Check(keywords)) ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1367 format == NULL ||
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1368 kwlist == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1369 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1370 PyErr_BadInternalCall();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1371 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1372 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1373
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
1374 Py_VA_COPY(lva, va);
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1375
61467
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diff changeset
1376 retval = vgetargskeywords(args, keywords, format,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1377 kwlist, &lva, FLAG_SIZE_T);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1378 return retval;
32606
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1379 }
cc1f74d19fcb Add PyArg_VaParseTupleAndKeywords(). Document this function and
Brett Cannon <bcannon@gmail.com>
parents: 28952
diff changeset
1380
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1381 int
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1382 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
1383 {
66220
379029714e24 handle dict subclasses gracefully in PyArg_ValidateKeywordArguments
Benjamin Peterson <benjamin@python.org>
parents: 63924
diff changeset
1384 if (!PyDict_Check(kwargs)) {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1385 PyErr_BadInternalCall();
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1386 return 0;
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parents: 60931
diff changeset
1387 }
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parents: 60931
diff changeset
1388 if (!_PyDict_HasOnlyStringKeys(kwargs)) {
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parents: 60931
diff changeset
1389 PyErr_SetString(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60931
diff changeset
1390 "keyword arguments must be strings");
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diff changeset
1391 return 0;
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diff changeset
1392 }
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diff changeset
1393 return 1;
60931
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1394 }
79128efe8a99 prevent the dict constructor from accepting non-string keyword args #8419
Benjamin Peterson <benjamin@python.org>
parents: 60399
diff changeset
1395
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diff changeset
1396 #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
1397
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1398 static int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
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diff changeset
1399 vgetargskeywords(PyObject *args, PyObject *keywords, const char *format,
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1400 char **kwlist, va_list *p_va, int flags)
4026
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Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1401 {
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1402 char msgbuf[512];
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1403 int levels[32];
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1404 const char *fname, *msg, *custom_msg, *keyword;
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1405 int min = INT_MAX;
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diff changeset
1406 int i, len, nargs, nkeywords;
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9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1407 PyObject *current_arg;
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1408 freelist_t freelist = {0, NULL};
20708
e912b683ed3e vgetargskeywords(): remove test that can't succeed. Not a bugfix, just
Tim Peters <tim.peters@gmail.com>
parents: 20632
diff changeset
1409
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1410 assert(args != NULL && PyTuple_Check(args));
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1411 assert(keywords == NULL || PyDict_Check(keywords));
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1412 assert(format != NULL);
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1413 assert(kwlist != NULL);
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diff changeset
1414 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
1415
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1416 /* grab the function name or custom error msg first (mutually exclusive) */
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1417 fname = strchr(format, ':');
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1418 if (fname) {
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1419 fname++;
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1420 custom_msg = NULL;
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1421 }
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1422 else {
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1423 custom_msg = strchr(format,';');
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1424 if (custom_msg)
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1425 custom_msg++;
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1426 }
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1427
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1428 /* scan kwlist and get greatest possible nbr of args */
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1429 for (len=0; kwlist[len]; len++)
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1430 continue;
20711
2890769b1e69 PyArg_ParseTupleAndKeywords: return false on internal error, not -1 (I
Tim Peters <tim.peters@gmail.com>
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diff changeset
1431
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
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diff changeset
1432 freelist.entries = PyMem_New(freelistentry_t, len);
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
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diff changeset
1433
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1434 nargs = PyTuple_GET_SIZE(args);
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1435 nkeywords = (keywords == NULL) ? 0 : PyDict_Size(keywords);
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diff changeset
1436 if (nargs + nkeywords > len) {
68809
4c2135930882 Issue #10833: Use PyErr_Format() and PyUnicode_FromFormat() instead of
Victor Stinner <victor.stinner@haypocalc.com>
parents: 68796
diff changeset
1437 PyErr_Format(PyExc_TypeError,
4c2135930882 Issue #10833: Use PyErr_Format() and PyUnicode_FromFormat() instead of
Victor Stinner <victor.stinner@haypocalc.com>
parents: 68796
diff changeset
1438 "%s%s takes at most %d argument%s (%d given)",
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1439 (fname == NULL) ? "function" : fname,
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1440 (fname == NULL) ? "" : "()",
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diff changeset
1441 len,
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diff changeset
1442 (len == 1) ? "" : "s",
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diff changeset
1443 nargs + nkeywords);
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1444 return 0;
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1445 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
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diff changeset
1446
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1447 /* convert tuple args and keyword args in same loop, using kwlist to drive process */
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1448 for (i = 0; i < len; i++) {
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1449 keyword = kwlist[i];
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1450 if (*format == '|') {
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1451 min = i;
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1452 format++;
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1453 }
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1454 if (IS_END_OF_FORMAT(*format)) {
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1455 PyErr_Format(PyExc_RuntimeError,
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diff changeset
1456 "More keyword list entries (%d) than "
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diff changeset
1457 "format specifiers (%d)", len, i);
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
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diff changeset
1458 return cleanreturn(0, &freelist);
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1459 }
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diff changeset
1460 current_arg = NULL;
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1461 if (nkeywords) {
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1462 current_arg = PyDict_GetItemString(keywords, keyword);
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1463 }
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diff changeset
1464 if (current_arg) {
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diff changeset
1465 --nkeywords;
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1466 if (i < nargs) {
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diff changeset
1467 /* arg present in tuple and in dict */
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1468 PyErr_Format(PyExc_TypeError,
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diff changeset
1469 "Argument given by name ('%s') "
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diff changeset
1470 "and position (%d)",
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1471 keyword, i+1);
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1472 return cleanreturn(0, &freelist);
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1473 }
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1474 }
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1475 else if (nkeywords && PyErr_Occurred())
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
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diff changeset
1476 return cleanreturn(0, &freelist);
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1477 else if (i < nargs)
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1478 current_arg = PyTuple_GET_ITEM(args, i);
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diff changeset
1479
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diff changeset
1480 if (current_arg) {
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1481 msg = convertitem(current_arg, &format, p_va, flags,
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1482 levels, msgbuf, sizeof(msgbuf), &freelist);
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1483 if (msg) {
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1484 seterror(i+1, msg, levels, fname, custom_msg);
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
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1485 return cleanreturn(0, &freelist);
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1486 }
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1487 continue;
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1488 }
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1489
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1490 if (i < min) {
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1491 PyErr_Format(PyExc_TypeError, "Required argument "
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diff changeset
1492 "'%s' (pos %d) not found",
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diff changeset
1493 keyword, i+1);
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1494 return cleanreturn(0, &freelist);
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1495 }
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1496 /* current code reports success when all required args
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1497 * fulfilled and no keyword args left, with no further
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1498 * validation. XXX Maybe skip this in debug build ?
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diff changeset
1499 */
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1500 if (!nkeywords)
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
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diff changeset
1501 return cleanreturn(1, &freelist);
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1502
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1503 /* We are into optional args, skip thru to any remaining
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1504 * keyword args */
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1505 msg = skipitem(&format, p_va, flags);
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1506 if (msg) {
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1507 PyErr_Format(PyExc_RuntimeError, "%s: '%s'", msg,
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1508 format);
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1509 return cleanreturn(0, &freelist);
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1510 }
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1511 }
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Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1512
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1513 if (!IS_END_OF_FORMAT(*format) && *format != '|') {
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1514 PyErr_Format(PyExc_RuntimeError,
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1515 "more argument specifiers than keyword list entries "
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1516 "(remaining format:'%s')", format);
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Jean-Paul Calderone <exarkun@twistedmatrix.com>
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1517 return cleanreturn(0, &freelist);
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1518 }
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diff changeset
1519
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1520 /* make sure there are no extraneous keyword arguments */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1521 if (nkeywords > 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1522 PyObject *key, *value;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1523 Py_ssize_t pos = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1524 while (PyDict_Next(keywords, &pos, &key, &value)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1525 int match = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1526 char *ks;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1527 if (!PyUnicode_Check(key)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1528 PyErr_SetString(PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1529 "keywords must be strings");
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1530 return cleanreturn(0, &freelist);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1531 }
61717
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1532 /* check that _PyUnicode_AsString() result is not NULL */
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1533 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
1534 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
1535 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
1536 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
1537 match = 1;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1538 break;
1504cc5a15a1 Issue #6697: Fix a crash if a keyword contains a surrogate
Victor Stinner <victor.stinner@haypocalc.com>
parents: 61466
diff changeset
1539 }
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1540 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1541 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1542 if (!match) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1543 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
1544 "'%U' is an invalid keyword "
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1545 "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
1546 key);
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1547 return cleanreturn(0, &freelist);
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1548 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1549 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1550 }
20723
6ac45244c41e vgetargskeywords()
Tim Peters <tim.peters@gmail.com>
parents: 20722
diff changeset
1551
75733
9fc456ac20cf Issue #14325: Stop using python lists, capsules, and the garbage collector to deal with PyArg_Parse* cleanup.
Jean-Paul Calderone <exarkun@twistedmatrix.com>
parents: 72915
diff changeset
1552 return cleanreturn(1, &freelist);
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1553 }
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1554
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1555
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1556 static char *
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1557 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
1558 {
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1559 const char *format = *p_format;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1560 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
1561
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1562 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
1563
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1564 /* simple codes
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1565 * 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
1566
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1567 case 'b': /* byte -- very short int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1568 case 'B': /* byte as bitfield */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1569 case 'h': /* short int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1570 case 'H': /* short int as bitfield */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1571 case 'i': /* int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1572 case 'I': /* int sized bitfield */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1573 case 'l': /* long int */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1574 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
1575 #ifdef HAVE_LONG_LONG
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1576 case 'L': /* PY_LONG_LONG */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1577 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
1578 #endif
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1579 case 'f': /* float */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1580 case 'd': /* double */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1581 case 'D': /* complex double */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1582 case 'c': /* char */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1583 case 'C': /* unicode char */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1584 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1585 (void) va_arg(*p_va, void *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1586 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1587 }
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36345
diff changeset
1588
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1589 case 'n': /* Py_ssize_t */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1590 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1591 (void) va_arg(*p_va, Py_ssize_t *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1592 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1593 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1594
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1595 /* string codes */
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1596
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1597 case 'e': /* string with encoding */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1598 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1599 (void) va_arg(*p_va, const char *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1600 if (!(*format == 's' || *format == 't'))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1601 /* after 'e', only 's' and 't' is allowed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1602 goto err;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1603 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1604 /* explicit fallthrough to string cases */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1605 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1606
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1607 case 's': /* string */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1608 case 'z': /* string or None */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1609 case 'y': /* bytes */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1610 case 'u': /* unicode string */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1611 case 'w': /* buffer, read-write */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1612 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1613 (void) va_arg(*p_va, char **);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1614 if (*format == '#') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1615 if (flags & FLAG_SIZE_T)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1616 (void) va_arg(*p_va, Py_ssize_t *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1617 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1618 (void) va_arg(*p_va, int *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1619 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1620 } else if ((c == 's' || c == 'z' || c == 'y') && *format == '*') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1621 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1622 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1623 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1624 }
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1625
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1626 /* 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
1627
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1628 case 'S': /* string object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1629 case 'Y': /* string object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1630 case 'U': /* unicode string object */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1631 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1632 (void) va_arg(*p_va, PyObject **);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1633 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1634 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1635
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1636 case 'O': /* object */
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parents: 57549
diff changeset
1637 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1638 if (*format == '!') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1639 format++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1640 (void) va_arg(*p_va, PyTypeObject*);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1641 (void) va_arg(*p_va, PyObject **);
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parents: 57549
diff changeset
1642 }
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diff changeset
1643 else if (*format == '&') {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1644 typedef int (*converter)(PyObject *, void *);
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parents: 57549
diff changeset
1645 (void) va_arg(*p_va, converter);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1646 (void) va_arg(*p_va, void *);
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diff changeset
1647 format++;
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diff changeset
1648 }
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diff changeset
1649 else {
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diff changeset
1650 (void) va_arg(*p_va, PyObject **);
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diff changeset
1651 }
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diff changeset
1652 break;
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diff changeset
1653 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1654
61467
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diff changeset
1655 case '(': /* bypass tuple, not handled at all previously */
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diff changeset
1656 {
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diff changeset
1657 char *msg;
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diff changeset
1658 for (;;) {
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diff changeset
1659 if (*format==')')
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diff changeset
1660 break;
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diff changeset
1661 if (IS_END_OF_FORMAT(*format))
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parents: 57549
diff changeset
1662 return "Unmatched left paren in format "
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diff changeset
1663 "string";
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diff changeset
1664 msg = skipitem(&format, p_va, flags);
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diff changeset
1665 if (msg)
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diff changeset
1666 return msg;
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diff changeset
1667 }
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diff changeset
1668 format++;
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diff changeset
1669 break;
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1670 }
45548
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
1671
61467
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diff changeset
1672 case ')':
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1673 return "Unmatched right paren in format string";
45548
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
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diff changeset
1674
61467
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diff changeset
1675 default:
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1676 err:
61467
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1677 return "impossible<bad format char>";
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1678
61467
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1679 }
35552
9b7d117eb4bc Complete format code support in getargs.c::skipitem(), which is called when
Georg Brandl <georg@python.org>
parents: 35449
diff changeset
1680
61467
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diff changeset
1681 *p_format = format;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1682 return NULL;
4026
6bbc13b7dca8 Support for keyword arguments (PyArg_ParseTupleAndKeywords) donated by
Guido van Rossum <guido@python.org>
parents: 3766
diff changeset
1683 }
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1684
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1685
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1686 int
36750
92ba72484ff3 Use Py_ssize_t for PyArg_UnpackTuple arguments.
Martin v. Löwis <martin@v.loewis.de>
parents: 36675
diff changeset
1687 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
1688 {
61467
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diff changeset
1689 Py_ssize_t i, l;
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diff changeset
1690 PyObject **o;
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diff changeset
1691 va_list vargs;
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1692
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1693 #ifdef HAVE_STDARG_PROTOTYPES
61467
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diff changeset
1694 va_start(vargs, max);
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1695 #else
61467
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diff changeset
1696 va_start(vargs);
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1697 #endif
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1698
61467
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diff changeset
1699 assert(min >= 0);
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diff changeset
1700 assert(min <= max);
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diff changeset
1701 if (!PyTuple_Check(args)) {
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parents: 57549
diff changeset
1702 PyErr_SetString(PyExc_SystemError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1703 "PyArg_UnpackTuple() argument list is not a tuple");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1704 return 0;
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parents: 57549
diff changeset
1705 }
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diff changeset
1706 l = PyTuple_GET_SIZE(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1707 if (l < min) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1708 if (name != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1709 PyErr_Format(
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1710 PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1711 "%s expected %s%zd arguments, got %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1712 name, (min == max ? "" : "at least "), min, l);
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diff changeset
1713 else
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diff changeset
1714 PyErr_Format(
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diff changeset
1715 PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1716 "unpacked tuple should have %s%zd elements,"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1717 " but has %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1718 (min == max ? "" : "at least "), min, l);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1719 va_end(vargs);
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diff changeset
1720 return 0;
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parents: 57549
diff changeset
1721 }
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diff changeset
1722 if (l > max) {
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parents: 57549
diff changeset
1723 if (name != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1724 PyErr_Format(
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1725 PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1726 "%s expected %s%zd arguments, got %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1727 name, (min == max ? "" : "at most "), max, l);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57549
diff changeset
1728 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1729 PyErr_Format(
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1730 PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1731 "unpacked tuple should have %s%zd elements,"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1732 " but has %zd",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1733 (min == max ? "" : "at most "), max, l);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1734 va_end(vargs);
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diff changeset
1735 return 0;
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parents: 57549
diff changeset
1736 }
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diff changeset
1737 for (i = 0; i < l; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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parents: 57549
diff changeset
1738 o = va_arg(vargs, PyObject **);
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diff changeset
1739 *o = PyTuple_GET_ITEM(args, i);
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diff changeset
1740 }
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diff changeset
1741 va_end(vargs);
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1742 return 1;
20632
6c84d55abb58 PyArg_UnpackTuple(): New argument unpacking function suggested by Jim
Fred Drake <fdrake@acm.org>
parents: 20629
diff changeset
1743 }
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1744
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1745
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1746 /* 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
1747 *
43777
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Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1748 * 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
1749 * 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
1750 */
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1751 int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35552
diff changeset
1752 _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
1753 {
61467
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1754 if (kw == NULL)
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1755 return 1;
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diff changeset
1756 if (!PyDict_CheckExact(kw)) {
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parents: 57549
diff changeset
1757 PyErr_BadInternalCall();
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diff changeset
1758 return 0;
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diff changeset
1759 }
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diff changeset
1760 if (PyDict_Size(kw) == 0)
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diff changeset
1761 return 1;
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43651
diff changeset
1762
61467
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diff changeset
1763 PyErr_Format(PyExc_TypeError, "%s does not take keyword arguments",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1764 funcname);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from
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diff changeset
1765 return 0;
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 34846
diff changeset
1766 }
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
1767 #ifdef __cplusplus
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36988
diff changeset
1768 };
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
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diff changeset
1769 #endif