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annotate __py_struct_from_dict__.cc @ 395:aa76e98a1a3e

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author Mike Miller <mtmiller@octave.org>
date Fri, 07 Apr 2017 10:47:45 -0700
parents 668fcb0f68ef
children 3644df6564bc
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baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
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1 /*
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2
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3 Copyright (C) 2016 Mike Miller
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4
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5 This file is part of Pytave.
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6
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7 Pytave is free software: you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
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9 Free Software Foundation, either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Pytave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Pytave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
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21 */
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22
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
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23 #if defined (HAVE_CONFIG_H)
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24 # include <config.h>
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25 #endif
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26
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27 #include <Python.h>
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28 #include <octave/oct.h>
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29
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30 #define PYTAVE_DO_DECLARE_SYMBOL
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31 #include "arrayobjectdefs.h"
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32 #include "exceptions.h"
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33 #include "oct-py-types.h"
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34 #include "oct-py-util.h"
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35 #include "octave_to_python.h"
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36
373
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37 DEFUN_DLD (__py_class_name__, args, ,
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38 "-*- texinfo -*-\n\
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39 @deftypefn {} {} __py_class_name__ (@var{obj})\n\
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40 Return the name of the class of the Python object @var{obj}.\n\
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41 \n\
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42 This is a private internal function not intended for direct use.\n\
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43 @end deftypefn")
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44 {
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45 if (args.length () != 1)
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46 print_usage ();
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47
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48 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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49 error ("__py_class_name__: argument must be a valid Python object");
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50
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51 Py_Initialize ();
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52
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53 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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54 std::string name = pytave::py_object_class_name (obj);
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55 Py_DECREF (obj);
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56
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57 return ovl (name);
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58 }
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59
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60 /*
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61 %!assert (__py_class_name__ (pyeval ("None")), "NoneType")
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62 %!assert (__py_class_name__ (pyeval ("'Octave'")), "str")
375
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63 %!assert (__py_class_name__ (pyeval ("{}")), "dict")
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64 %!assert (__py_class_name__ (pyeval ("[]")), "list")
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65 %!assert (__py_class_name__ (pyeval ("()")), "tuple")
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66 %!assert (__py_class_name__ (pyeval ("__import__('array').array('d')")), "array.array")
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67
386
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68 %% Test an anonymous class with its __module__ property set to None
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69 %!assert (__py_class_name__ (pyeval ("[[t() for t.__module__ in (None,)][0] for t in (type('foo', (), {}),)][0]")), "foo")
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70
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71 %!error __py_class_name__ ()
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72 %!error __py_class_name__ (1)
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73 %!error __py_class_name__ (1, 2)
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74 */
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75
356
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76 DEFUN_DLD (__py_int64_scalar_value__, args, nargout,
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77 "-*- texinfo -*-\n\
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78 @deftypefn {} {} __py_int64_scalar_value__ (@var{x})\n\
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79 Extract a scalar int64 value from the Python integer @var{x}.\n\
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80 \n\
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81 This is a private internal function not intended for direct use.\n\
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82 @end deftypefn")
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83 {
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84 if (args.length () != 1)
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85 print_usage ();
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86
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87 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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88 error ("pyobject.int64: argument must be a Python object");
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89
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90 Py_Initialize ();
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91
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92 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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93 if (! obj)
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94 error ("pyobject.int64: argument must be a valid Python object");
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95
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96 octave_int64 retval;
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97
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98 try
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99 {
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100 retval = pytave::extract_py_int64 (obj);
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101 }
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102 catch (pytave::object_convert_exception const &)
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103 {
374
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104 error ("pyobject.int64: argument must be a Python int or long object");
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105 }
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106 catch (boost::python::error_already_set const &)
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107 {
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108 std::string message = pytave::fetch_exception_message ();
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109 error ("pyobject.int64: %s", message.c_str ());
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110 }
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111 Py_DECREF (obj);
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112
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113 return ovl (retval);
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114 }
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115
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116 /*
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117 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("0"))), int64 (0))
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118 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("2**62"))), int64 (2^62))
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119 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("-2**62"))), int64 (-2^62))
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120 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("2**128"))), intmax ("int64"))
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121 %!assert (__py_int64_scalar_value__ (pyobject (pyeval ("-2**128"))), intmin ("int64"))
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122
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123 %!error __py_int64_scalar_value__ ()
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124 %!error __py_int64_scalar_value__ (1)
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125 %!error __py_int64_scalar_value__ (pyeval ("None"))
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126 %!error __py_int64_scalar_value__ (1, 2)
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127 */
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128
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129 DEFUN_DLD (__py_uint64_scalar_value__, args, nargout,
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130 "-*- texinfo -*-\n\
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131 @deftypefn {} {} __py_uint64_scalar_value__ (@var{x})\n\
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132 Extract a scalar uint64 value from the Python integer @var{x}.\n\
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133 \n\
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134 This is a private internal function not intended for direct use.\n\
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135 @end deftypefn")
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136 {
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137 if (args.length () != 1)
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138 print_usage ();
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139
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140 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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141 error ("pyobject.uint64: argument must be a Python object");
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142
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143 Py_Initialize ();
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144
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145 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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146 if (! obj)
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147 error ("pyobject.uint64: argument must be a valid Python object");
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148
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149 octave_uint64 retval;
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150
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151 try
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152 {
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153 retval = pytave::extract_py_uint64 (obj);
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154 }
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155 catch (pytave::object_convert_exception const &)
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156 {
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157 error ("pyobject.uint64: argument must be a Python int or long object");
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158 }
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159 catch (boost::python::error_already_set const &)
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160 {
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161 std::string message = pytave::fetch_exception_message ();
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162 error ("pyobject.uint64: %s", message.c_str ());
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163 }
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164 Py_DECREF (obj);
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165
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166 return ovl (retval);
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167 }
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168
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169 /*
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170 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("0"))), uint64 (0))
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171 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("2**62"))), uint64 (2^62))
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172 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("2**128"))), intmax ("uint64"))
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173 %!assert (__py_uint64_scalar_value__ (pyobject (pyeval ("-2**128"))), intmin ("uint64"))
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174
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175 %!error __py_uint64_scalar_value__ ()
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176 %!error __py_uint64_scalar_value__ (1)
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177 %!error __py_uint64_scalar_value__ (pyeval ("None"))
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178 %!error __py_uint64_scalar_value__ (1, 2)
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179 */
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180
368
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181 DEFUN_DLD (__py_is_none__, args, nargout,
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182 "-*- texinfo -*-\n\
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183 @deftypefn {} {} __py_is_none__ (@var{x})\n\
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184 Check whether the Python object @var{obj} is the @code{None} object.\n\
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185 \n\
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186 This is a private internal function not intended for direct use.\n\
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187 @end deftypefn")
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188 {
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189 if (args.length () != 1)
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190 print_usage ();
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191
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192 Py_Initialize ();
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193
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194 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
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195
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196 bool retval = (obj && (obj == Py_None));
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197 Py_XDECREF (obj);
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198
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199 return ovl (retval);
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200 }
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201
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202 /*
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203 %!assert (__py_is_none__ (pyobject ()))
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204 %!assert (__py_is_none__ (pyeval ("None")))
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205 %!assert (! __py_is_none__ (1))
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206 %!assert (! __py_is_none__ ("None"))
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207 %!assert (! __py_is_none__ (pyobject (1)))
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208 %!assert (! __py_is_none__ (pyobject ("None")))
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209
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210 %!error __py_is_none__ ()
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211 %!error __py_is_none__ (1, 2)
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212 */
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213
358
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214 DEFUN_DLD (__py_isinstance__, args, nargout,
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215 "-*- texinfo -*-\n\
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216 @deftypefn {} {} __py_isinstance__ (@var{x})\n\
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217 Check whether the Python object @var{obj} is an instance of a Python type\n\
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218 specified by the string @var{type}.\n\
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219 \n\
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220 This is a private internal function not intended for direct use.\n\
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diff changeset
221 @end deftypefn")
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diff changeset
222 {
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223 octave_value_list retval;
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diff changeset
224
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225 int nargin = args.length ();
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diff changeset
226 if (nargin != 2)
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diff changeset
227 {
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228 print_usage ();
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229 return retval;
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230 }
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diff changeset
231
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diff changeset
232 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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diff changeset
233 error ("pyobject.isa: OBJ must be a Python object");
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234
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
235 if (! args(1).is_string ())
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diff changeset
236 error ("pyobject.isa: TYPE must be a string naming a Python type (py.*)");
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237
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238 std::string typestr = args(1).string_value ();
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diff changeset
239 if (! ((typestr.size () > 3) && (typestr.compare (0, 3, "py.") == 0)))
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diff changeset
240 error ("pyobject.isa: TYPE must be a string naming a Python type (py.*)");
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diff changeset
241
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diff changeset
242 typestr = typestr.substr (3);
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diff changeset
243
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
244 Py_Initialize ();
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diff changeset
245
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
246 try
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diff changeset
247 {
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diff changeset
248 // FIXME: PyObject *obj = look up stored pyobject reference (args(0));
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diff changeset
249 boost::python::object arg;
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250 pytave::octvalue_to_pyobj (arg, args(0));
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diff changeset
251 PyObject *obj = arg.ptr ();
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diff changeset
252
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253 PyObject *type = pytave::py_find_type (typestr);
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diff changeset
254 retval(0) = pytave::py_isinstance (obj, type);
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255 Py_XDECREF (type);
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diff changeset
256 }
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
257 catch (pytave::object_convert_exception const &)
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diff changeset
258 {
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
259 error ("pyobject.isa: error in return value type conversion");
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diff changeset
260 }
d41fc23d4b9f pyobject.isa: New overload method to handle Python types (fixes issue #49)
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diff changeset
261 catch (boost::python::error_already_set const &)
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diff changeset
262 {
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diff changeset
263 std::string message = pytave::fetch_exception_message ();
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diff changeset
264 error ("pyobject.isa: %s", message.c_str ());
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diff changeset
265 }
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diff changeset
266
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diff changeset
267 return retval;
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diff changeset
268 }
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diff changeset
269
362
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diff changeset
270 DEFUN_DLD (__py_objstore_del__, args, nargout,
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271 "-*- texinfo -*-\n\
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272 @deftypefn {} {} __py_objstore_del__ (@var{key})\n\
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273 Delete the Python object stored under @var{key} from the object store.\n\
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274 \n\
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275 This is a private internal function not intended for direct use.\n\
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diff changeset
276 @end deftypefn")
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diff changeset
277 {
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diff changeset
278 if (args.length () != 1)
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279 print_usage ();
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280
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281 Py_Initialize ();
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282 uint64_t key = args(0).xuint64_scalar_value ("__py_objstore_del__: KEY must be an integer");
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283 pytave::py_objstore_del (key);
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284
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diff changeset
285 return ovl ();
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286 }
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287
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288 DEFUN_DLD (__py_objstore_get__, args, nargout,
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289 "-*- texinfo -*-\n\
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290 @deftypefn {} {} __py_objstore_get__ (@var{key})\n\
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291 Get the Python object stored under @var{key} from the object store.\n\
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292 \n\
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293 This is a private internal function not intended for direct use.\n\
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294 @end deftypefn")
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295 {
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296 if (args.length () != 1)
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297 print_usage ();
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298
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299 Py_Initialize ();
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300 uint64_t key = args(0).xuint64_scalar_value ("__py_objstore_get__: KEY must be an integer");
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301 PyObject *obj = pytave::py_objstore_get (key);
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302
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303 if (! obj)
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304 error ("__py_objstore_get__: no existing Python object found for key %ju", key);
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305
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306 octave_value retval = pytave::pyobject_wrap_object (obj);
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307
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308 return ovl (retval);
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309 }
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310
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311 DEFUN_DLD (__py_objstore_put__, args, nargout,
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312 "-*- texinfo -*-\n\
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313 @deftypefn {} {} __py_objstore_put__ (@var{value})\n\
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314 Convert @var{value} to a Python value and store in the object store.\n\
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315 \n\
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316 This is a private internal function not intended for direct use.\n\
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diff changeset
317 @end deftypefn")
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318 {
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319 if (args.length () != 1)
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320 print_usage ();
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321
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322 Py_Initialize ();
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diff changeset
323 boost::python::numeric::array::set_module_and_type ("numpy", "ndarray");
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diff changeset
324 _import_array ();
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diff changeset
325 // FIXME: PyObject *obj = convert argument to Python (args(0));
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326 PyObject *obj = 0;
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diff changeset
327 try
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diff changeset
328 {
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diff changeset
329 boost::python::object arg;
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330 pytave::octvalue_to_pyobj (arg, args(0));
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diff changeset
331 obj = arg.ptr ();
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332 Py_INCREF (obj);
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333 }
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diff changeset
334 catch (pytave::value_convert_exception const &)
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diff changeset
335 {
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diff changeset
336 }
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diff changeset
337
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338 if (! obj)
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diff changeset
339 error ("__py_objstore_put__: VALUE must be convertible to a Python value");
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340
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341 uint64_t key = pytave::py_objstore_put (obj);
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342 Py_DECREF (obj);
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diff changeset
343
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344 return ovl (octave_uint64 (key));
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345 }
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diff changeset
346
365
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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347 DEFUN_DLD (__py_string_value__, args, nargout,
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
348 "-*- texinfo -*-\n\
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
349 @deftypefn {} {} __py_string_value__ (@var{obj})\n\
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350 Return the string value or representation of the Python object @var{obj}.\n\
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diff changeset
351 \n\
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352 This is a private internal function not intended for direct use.\n\
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
353 @end deftypefn")
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
354 {
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
355 if (args.length () != 1)
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
356 print_usage ();
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
357
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
358 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
359 error ("pyobject.char: argument must be a valid Python object");
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
360
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
361 Py_Initialize ();
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
362
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
363 PyObject *obj = pytave::pyobject_unwrap_object (args(0));
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
364 if (! obj)
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
365 error ("pyobject.char: argument must be a valid Python object");
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
366
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
367 std::string str;
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
368
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
369 if (PyBytes_Check (obj) || PyUnicode_Check (obj))
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
370 str = pytave::extract_py_str (obj);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
371 else if (Py_TYPE (obj)->tp_str != NULL)
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
372 {
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
373 PyObject *s = PyObject_Str (obj);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
374 str = pytave::extract_py_str (s);
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diff changeset
375 Py_DECREF (s);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
376 }
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
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diff changeset
377 else
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
378 {
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
379 Py_DECREF (obj);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
380 error ("pyobject.char: cannot convert Python object to string");
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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parents: 362
diff changeset
381 }
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
382
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
383 Py_DECREF (obj);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
384
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
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diff changeset
385 return ovl (str);
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
386 }
087e7bc3697f Do not automatically convert Python strings to Octave strings (fixes issue #65)
Mike Miller <mtmiller@octave.org>
parents: 362
diff changeset
387
345
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
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parents:
diff changeset
388 DEFUN_DLD (__py_struct_from_dict__, args, nargout,
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
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parents:
diff changeset
389 "-*- texinfo -*-\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
390 @deftypefn {} {} __py_struct_from_dict__ (@var{dict})\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
391 Extract a scalar struct from the Python dict @var{dict}.\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
392 \n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
393 This is a private internal function not intended for direct use.\n\
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
394 @end deftypefn")
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
395 {
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
396 octave_value_list retval;
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
397 std::string id;
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
398
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
399 int nargin = args.length ();
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
400
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
401 if (nargin != 1)
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
402 {
baff3b90dcb1 __py_struct_from_dict__: new private compiled conversion function
Mike Miller <mtmiller@octave.org>
parents:
diff changeset
403 print_usage ();
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404 return retval;
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405 }
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406
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407 if (! (args(0).is_object () && args(0).class_name () == "pyobject"))
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408 error ("pyobject.struct: argument must be a Python object");
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409
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410 Py_Initialize ();
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411
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412 try
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413 {
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414 // FIXME: PyObject *obj = look up stored pyobject reference (args(0));
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415 boost::python::object arg;
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416 pytave::octvalue_to_pyobj (arg, args(0));
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417 PyObject *obj = arg.ptr ();
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418
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419 retval(0) = pytave::extract_py_scalar_map (obj);
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420 }
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421 catch (pytave::object_convert_exception const &)
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422 {
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423 error ("pyobject.struct: error in return value type conversion");
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424 }
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425 catch (boost::python::error_already_set const &)
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426 {
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427 std::string message = pytave::fetch_exception_message ();
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428 error ("pyobject.struct: %s", message.c_str ());
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429 }
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430
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431 return retval;
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432 }
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433
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434 /*
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435 ## No test needed for internal helper function.
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436 %!assert (1)
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437 */