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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave 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 |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave 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 Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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3503
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28 #include <iostream> |
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29 |
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3933
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30 #include "Cell.h" |
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4358
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31 #include "defun.h" |
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2376
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32 #include "error.h" |
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4358
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33 #include "gripes.h" |
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2979
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34 #include "oct-lvalue.h" |
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3932
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35 #include "ov-list.h" |
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2376
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36 #include "ov-struct.h" |
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37 #include "unwind-prot.h" |
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2948
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38 #include "variables.h" |
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39 |
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4750
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40 #include "Array-util.h" |
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41 |
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4687
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42 #include "byte-swap.h" |
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43 #include "ls-oct-ascii.h" |
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44 #include "ls-oct-binary.h" |
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45 #include "ls-hdf5.h" |
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46 #include "ls-utils.h" |
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47 |
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3219
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48 DEFINE_OCTAVE_ALLOCATOR(octave_struct); |
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49 |
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4612
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50 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA(octave_struct, "struct", "struct"); |
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51 |
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4513
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52 Cell |
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53 octave_struct::dotref (const octave_value_list& idx) |
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2962
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54 { |
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4513
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55 Cell retval; |
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3933
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56 |
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57 assert (idx.length () == 1); |
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2962
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58 |
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59 std::string nm = idx(0).string_value (); |
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60 |
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4219
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61 Octave_map::const_iterator p = map.seek (nm); |
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62 |
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4219
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63 if (p != map.end ()) |
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64 retval = map.contents (p); |
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65 else |
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66 error ("structure has no member `%s'", nm.c_str ()); |
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67 |
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68 return retval; |
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69 } |
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70 |
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4513
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71 #if 0 |
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3933
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72 static void |
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73 gripe_invalid_index (void) |
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74 { |
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75 error ("invalid index for structure array"); |
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76 } |
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4513
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77 #endif |
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3933
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78 |
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79 static void |
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80 gripe_invalid_index_for_assignment (void) |
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81 { |
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82 error ("invalid index for structure array assignment"); |
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83 } |
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84 |
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85 static void |
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86 gripe_invalid_index_type (const std::string& nm, char t) |
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87 { |
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88 error ("%s cannot be indexed with %c", nm.c_str (), t); |
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89 } |
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90 |
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91 static void |
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92 gripe_failed_assignment (void) |
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93 { |
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94 error ("assignment to structure element failed"); |
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95 } |
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96 |
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4994
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97 octave_value_list |
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4247
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98 octave_struct::subsref (const std::string& type, |
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99 const std::list<octave_value_list>& idx, |
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100 int nargout) |
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101 { |
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4994
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102 octave_value_list retval; |
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103 |
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104 int skip = 1; |
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105 |
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106 switch (type[0]) |
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107 { |
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108 case '(': |
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109 { |
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110 if (type.length () > 1 && type[1] == '.') |
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111 { |
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4219
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112 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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113 octave_value_list key_idx = *++p; |
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114 |
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4513
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115 Cell tmp = dotref (key_idx); |
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116 |
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117 if (! error_state) |
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118 { |
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4513
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119 Cell t = tmp.index (idx.front ()); |
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120 |
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121 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
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122 |
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123 // We handled two index elements, so tell |
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124 // next_subsref to skip both of them. |
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125 |
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126 skip++; |
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3933
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127 } |
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128 } |
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129 else |
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4994
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130 retval(0) = map.index (idx.front ()); |
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3933
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131 } |
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132 break; |
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133 |
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134 case '.': |
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135 { |
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4513
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136 Cell t = dotref (idx.front ()); |
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137 |
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138 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
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139 } |
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140 break; |
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141 |
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142 case '{': |
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143 gripe_invalid_index_type (type_name (), type[0]); |
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144 break; |
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145 |
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146 default: |
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147 panic_impossible (); |
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148 } |
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149 |
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4994
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150 // XXX FIXME XXX -- perhaps there should be an |
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151 // octave_value_list::next_subsref member function? See also |
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152 // octave_user_function::subsref. |
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153 |
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154 if (idx.size () > 1) |
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5028
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155 retval = retval(0).next_subsref (nargout, type, idx, skip); |
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3933
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156 |
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157 return retval; |
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158 } |
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159 |
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160 octave_value |
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161 octave_struct::numeric_conv (const Cell& val, |
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162 const std::string& type) |
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163 { |
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164 octave_value retval; |
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165 |
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166 if (val.length () == 1) |
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167 { |
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168 retval = val(0); |
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169 |
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170 if (type.length () > 0 && type[0] == '.' && ! retval.is_map ()) |
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171 retval = Octave_map (); |
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172 } |
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173 else |
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174 gripe_invalid_index_for_assignment (); |
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175 |
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176 return retval; |
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177 } |
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178 |
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179 octave_value |
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4247
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180 octave_struct::subsasgn (const std::string& type, |
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4219
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181 const std::list<octave_value_list>& idx, |
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3933
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182 const octave_value& rhs) |
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2376
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183 { |
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3933
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184 octave_value retval; |
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185 |
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186 int n = type.length (); |
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187 |
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188 octave_value t_rhs = rhs; |
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189 |
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190 if (n > 1 && ! (type.length () == 2 && type[0] == '(' && type[1] == '.')) |
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191 { |
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192 switch (type[0]) |
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193 { |
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194 case '(': |
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195 { |
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196 if (type.length () > 1 && type[1] == '.') |
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197 { |
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4219
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198 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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199 octave_value_list t_idx = *p; |
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3933
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200 |
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4513
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201 octave_value_list key_idx = *++p; |
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202 |
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203 assert (key_idx.length () == 1); |
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3933
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204 |
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4513
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205 std::string key = key_idx(0).string_value (); |
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3933
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206 |
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4513
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207 octave_value u; |
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3933
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208 |
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4513
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209 if (! map.contains (key)) |
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210 u = octave_value::empty_conv (type.substr (2), rhs); |
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211 else |
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212 { |
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4675
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213 Cell map_val = map.contents (key); |
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3933
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214 |
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4513
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215 Cell map_elt = map_val.index (idx.front (), true); |
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3933
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216 |
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4513
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217 u = numeric_conv (map_elt, type.substr (2)); |
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218 } |
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3933
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219 |
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4513
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220 if (! error_state) |
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221 { |
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222 std::list<octave_value_list> next_idx (idx); |
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3933
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223 |
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4513
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224 // We handled two index elements, so subsasgn to |
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225 // needs to skip both of them. |
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3933
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226 |
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4513
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227 next_idx.erase (next_idx.begin ()); |
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228 next_idx.erase (next_idx.begin ()); |
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4059
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229 |
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4513
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230 u.make_unique (); |
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231 |
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232 t_rhs = u.subsasgn (type.substr (2), next_idx, rhs); |
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3933
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233 } |
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234 } |
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235 else |
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236 gripe_invalid_index_for_assignment (); |
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237 } |
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238 break; |
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239 |
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240 case '.': |
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241 { |
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242 octave_value_list key_idx = idx.front (); |
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243 |
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244 assert (key_idx.length () == 1); |
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245 |
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246 std::string key = key_idx(0).string_value (); |
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247 |
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248 octave_value u; |
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249 |
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250 if (! map.contains (key)) |
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251 u = octave_value::empty_conv (type.substr (1), rhs); |
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252 else |
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253 { |
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4675
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254 Cell map_val = map.contents (key); |
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3933
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255 |
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256 u = numeric_conv (map_val, type.substr (1)); |
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257 } |
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258 |
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259 if (! error_state) |
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260 { |
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4219
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261 std::list<octave_value_list> next_idx (idx); |
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3933
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262 |
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4219
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263 next_idx.erase (next_idx.begin ()); |
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3933
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264 |
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4059
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265 u.make_unique (); |
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266 |
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3933
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267 t_rhs = u.subsasgn (type.substr (1), next_idx, rhs); |
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268 } |
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269 } |
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270 break; |
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271 |
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272 case '{': |
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273 gripe_invalid_index_type (type_name (), type[0]); |
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274 break; |
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275 |
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276 default: |
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277 panic_impossible (); |
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278 } |
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279 } |
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280 |
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281 if (! error_state) |
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282 { |
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283 switch (type[0]) |
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284 { |
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285 case '(': |
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286 { |
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287 if (n > 1 && type[1] == '.') |
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288 { |
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4219
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289 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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290 octave_value_list key_idx = *++p; |
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3933
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291 |
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292 assert (key_idx.length () == 1); |
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293 |
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294 std::string key = key_idx(0).string_value (); |
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295 |
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296 if (! error_state) |
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297 { |
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4513
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298 map.assign (idx.front (), key, t_rhs); |
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3933
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299 |
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4513
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300 if (! error_state) |
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301 retval = octave_value (this, count + 1); |
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3933
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302 else |
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4513
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303 gripe_failed_assignment (); |
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3933
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304 } |
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305 else |
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306 gripe_failed_assignment (); |
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307 } |
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308 else |
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4197
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309 { |
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4513
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310 Octave_map rhs_map = t_rhs.map_value (); |
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4197
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311 |
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4513
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312 if (! error_state) |
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4197
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313 { |
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4513
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314 map.assign (idx.front (), rhs_map); |
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4197
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315 |
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316 if (! error_state) |
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4513
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317 retval = octave_value (this, count + 1); |
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4197
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318 else |
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4513
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319 gripe_failed_assignment (); |
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4197
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320 } |
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4513
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321 else |
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322 error ("invalid structure assignment"); |
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4197
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323 } |
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3933
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324 } |
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325 break; |
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326 |
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327 case '.': |
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328 { |
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329 octave_value_list key_idx = idx.front (); |
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330 |
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331 assert (key_idx.length () == 1); |
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332 |
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333 std::string key = key_idx(0).string_value (); |
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334 |
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335 map.assign (key, t_rhs); |
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336 |
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337 if (! error_state) |
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338 retval = octave_value (this, count + 1); |
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339 else |
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340 gripe_failed_assignment (); |
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341 } |
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342 break; |
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343 |
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344 case '{': |
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345 gripe_invalid_index_type (type_name (), type[0]); |
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346 break; |
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347 |
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348 default: |
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349 panic_impossible (); |
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350 } |
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351 } |
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352 else |
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353 gripe_failed_assignment (); |
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354 |
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355 return retval; |
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2376
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356 } |
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357 |
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4791
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358 size_t |
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359 octave_struct::byte_size (void) const |
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360 { |
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361 // Neglect the size of the fieldnames. |
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362 |
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363 size_t retval = 0; |
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364 |
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365 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) |
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366 { |
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367 std::string key = map.key (p); |
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368 |
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369 octave_value val = octave_value (map.contents (p)); |
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370 |
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371 retval += val.byte_size (); |
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372 } |
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373 |
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374 return retval; |
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375 } |
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376 |
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2376
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377 void |
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3523
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378 octave_struct::print (std::ostream& os, bool) const |
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2901
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379 { |
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380 print_raw (os); |
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381 } |
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382 |
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383 void |
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3523
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384 octave_struct::print_raw (std::ostream& os, bool) const |
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2376
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385 { |
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386 // XXX FIXME XXX -- would be nice to print the output in some |
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387 // standard order. Maybe all substructures first, maybe |
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388 // alphabetize entries, etc. |
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389 |
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2985
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390 unwind_protect::begin_frame ("octave_struct_print"); |
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2376
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391 |
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392 unwind_protect_int (Vstruct_levels_to_print); |
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393 |
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3961
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394 if (Vstruct_levels_to_print >= 0) |
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2376
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395 { |
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3961
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396 bool print_keys_only = (Vstruct_levels_to_print == 0); |
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397 |
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398 Vstruct_levels_to_print--; |
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399 |
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2901
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400 indent (os); |
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401 os << "{"; |
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402 newline (os); |
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2376
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403 |
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2901
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404 increment_indent_level (); |
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2376
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405 |
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5275
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406 octave_idx_type n = map.numel (); |
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3932
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407 |
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4604
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408 if (n > 1 && print_keys_only) |
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409 { |
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410 indent (os); |
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411 dim_vector dv = dims (); |
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412 os << dv.str () << " struct array containing the fields:"; |
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413 newline (os); |
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414 newline (os); |
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415 |
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416 increment_indent_level (); |
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417 } |
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418 |
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4219
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419 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) |
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2376
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420 { |
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3523
|
421 std::string key = map.key (p); |
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4513
|
422 Cell val = map.contents (p); |
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2376
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423 |
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4499
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424 octave_value tmp = (n == 1) ? val(0) : octave_value (val, true); |
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3961
|
425 |
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426 if (print_keys_only) |
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3932
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427 { |
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3961
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428 indent (os); |
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4604
|
429 os << key; |
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|
430 if (n == 1) |
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431 { |
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432 dim_vector dv = tmp.dims (); |
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433 os << ": " << dv.str () << " " << tmp.type_name (); |
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434 } |
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3961
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435 newline (os); |
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3932
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436 } |
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3961
|
437 else |
|
4121
|
438 tmp.print_with_name (os, key); |
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2376
|
439 } |
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440 |
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4604
|
441 if (n > 1 && print_keys_only) |
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|
442 decrement_indent_level (); |
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443 |
|
2901
|
444 decrement_indent_level (); |
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2376
|
445 |
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2901
|
446 indent (os); |
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|
447 os << "}"; |
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|
448 newline (os); |
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2376
|
449 } |
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450 else |
|
2901
|
451 { |
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3961
|
452 indent (os); |
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|
453 os << "<structure>"; |
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2901
|
454 newline (os); |
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|
455 } |
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2376
|
456 |
|
2985
|
457 unwind_protect::run_frame ("octave_struct_print"); |
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2376
|
458 } |
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|
459 |
|
2901
|
460 bool |
|
3523
|
461 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
|
2901
|
462 { |
|
3961
|
463 bool retval = false; |
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|
464 |
|
2901
|
465 indent (os); |
|
3961
|
466 |
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|
467 if (Vstruct_levels_to_print < 0) |
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|
468 os << name << " = "; |
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|
469 else |
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|
470 { |
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|
471 os << name << " ="; |
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|
472 newline (os); |
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|
473 retval = true; |
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|
474 } |
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|
475 |
|
|
476 return retval; |
|
2901
|
477 } |
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|
478 |
|
4744
|
479 static bool |
|
|
480 scalar (const dim_vector& dims) |
|
|
481 { |
|
|
482 return dims.length () == 2 && dims (0) == 1 && dims (1) == 1; |
|
|
483 } |
|
|
484 |
|
|
485 // XXX FIXME XXX -- move these tests to the test directory? |
|
|
486 /* |
|
|
487 %!shared x |
|
|
488 %! x(1).a=1; x(2).a=2; x(1).b=3; x(2).b=3; |
|
|
489 %!assert(struct('a',1,'b',3),x(1)) |
|
|
490 %!assert(struct('a',{},'b',{}),x([])) |
|
|
491 %!assert(struct('a',{1,2},'b',{3,3}),x) |
|
|
492 %!assert(struct('a',{1,2},'b',3),x) |
|
|
493 %!assert(struct('a',{1,2},'b',{3}),x) |
|
|
494 %!assert(struct('b',3,'a',{1,2}),x) |
|
|
495 %!assert(struct('b',{3},'a',{1,2}),x) |
|
|
496 %!test x=struct([]); |
|
|
497 %!assert(size(x),[0,0]); |
|
|
498 %!assert(isstruct(x)); |
|
|
499 %!assert(isempty(fieldnames(x))); |
|
|
500 %!fail("struct('a',{1,2},'b',{1,2,3})","dimensions of parameter 2 do not match those of parameter 4") |
|
5582
|
501 %!fail("struct(1,2,3,4)","struct expects alternating \"field\", VALUE pairs"); |
|
|
502 %!fail("struct('1',2,'3')","struct expects alternating \"field\", VALUE pairs"); |
|
4744
|
503 */ |
|
|
504 |
|
|
505 DEFUN (struct, args, , |
|
|
506 "-*- texinfo -*-\n\ |
|
|
507 @deftypefn {Built-in Function} {} struct (\"field\", @var{value}, \"field\", @var{value}, @dots{})\n\ |
|
|
508 \n\ |
|
|
509 Create a structure and initialize its value.\n\ |
|
|
510 \n\ |
|
|
511 If the values are cell arrays, create a structure array and initialize\n\ |
|
|
512 its values. The dimensions of each cell array of values must match.\n\ |
|
|
513 Singleton cells and non-cell values are repeated so that they fill\n\ |
|
|
514 the entire array. If the cells are empty, create an empty structure\n\ |
|
4911
|
515 array with the specified field names.\n\ |
|
|
516 @end deftypefn") |
|
4744
|
517 { |
|
|
518 octave_value_list retval; |
|
|
519 |
|
|
520 int nargin = args.length (); |
|
|
521 |
|
5444
|
522 // struct ([]) returns an empty struct. |
|
|
523 |
|
|
524 // struct (empty_matrix) returns an empty struct with the same |
|
|
525 // dimensions as the empty matrix. |
|
|
526 |
|
|
527 // Note that struct () creates a 1x1 struct with no fields for |
|
|
528 // compatibility with Matlab. |
|
4744
|
529 |
|
|
530 if (nargin == 1 && args(0).is_empty () && args(0).is_real_matrix ()) |
|
5444
|
531 return octave_value (Octave_map (args(0).dims ())); |
|
4744
|
532 |
|
|
533 // Check for "field", VALUE pairs. |
|
|
534 |
|
|
535 for (int i = 0; i < nargin; i += 2) |
|
|
536 { |
|
|
537 if (! args(i).is_string () || i + 1 >= nargin) |
|
|
538 { |
|
|
539 error ("struct expects alternating \"field\", VALUE pairs"); |
|
|
540 return retval; |
|
|
541 } |
|
|
542 } |
|
|
543 |
|
|
544 // Check that the dimensions of the values correspond. |
|
|
545 |
|
|
546 dim_vector dims (1, 1); |
|
|
547 |
|
|
548 int first_dimensioned_value = 0; |
|
|
549 |
|
|
550 for (int i = 1; i < nargin; i += 2) |
|
|
551 { |
|
|
552 if (args(i).is_cell ()) |
|
|
553 { |
|
|
554 dim_vector argdims (args(i).dims ()); |
|
|
555 |
|
|
556 if (! scalar (argdims)) |
|
|
557 { |
|
|
558 if (! first_dimensioned_value) |
|
|
559 { |
|
|
560 dims = argdims; |
|
|
561 first_dimensioned_value = i + 1; |
|
|
562 } |
|
|
563 else if (dims != argdims) |
|
|
564 { |
|
|
565 error ("struct: dimensions of parameter %d do not match those of parameter %d", |
|
|
566 first_dimensioned_value, i+1); |
|
|
567 return retval; |
|
|
568 } |
|
|
569 } |
|
|
570 } |
|
|
571 } |
|
|
572 |
|
|
573 // Create the return value. |
|
|
574 |
|
|
575 Octave_map map (dims); |
|
|
576 |
|
|
577 for (int i = 0; i < nargin; i+= 2) |
|
|
578 { |
|
|
579 // Get key. |
|
|
580 |
|
|
581 std::string key (args(i).string_value ()); |
|
|
582 |
|
|
583 if (error_state) |
|
|
584 return retval; |
|
|
585 |
|
|
586 // Value may be v, { v }, or { v1, v2, ... } |
|
|
587 // In the first two cases, we need to create a cell array of |
|
|
588 // the appropriate dimensions filled with v. In the last case, |
|
|
589 // the cell array has already been determined to be of the |
|
|
590 // correct dimensions. |
|
|
591 |
|
|
592 if (args(i+1).is_cell ()) |
|
|
593 { |
|
|
594 const Cell c (args(i+1).cell_value ()); |
|
|
595 |
|
|
596 if (error_state) |
|
|
597 return retval; |
|
|
598 |
|
|
599 if (scalar (c.dims ())) |
|
|
600 map.assign (key, Cell (dims, c(0))); |
|
|
601 else |
|
|
602 map.assign (key, c); |
|
|
603 } |
|
|
604 else |
|
|
605 map.assign (key, Cell (dims, args(i+1))); |
|
|
606 |
|
|
607 if (error_state) |
|
|
608 return retval; |
|
|
609 } |
|
|
610 |
|
|
611 return octave_value (map); |
|
|
612 } |
|
|
613 |
|
4358
|
614 DEFUN (isstruct, args, , |
|
|
615 "-*- texinfo -*-\n\ |
|
|
616 @deftypefn {Built-in Function} {} isstruct (@var{expr})\n\ |
|
|
617 Return 1 if the value of the expression @var{expr} is a structure.\n\ |
|
|
618 @end deftypefn") |
|
|
619 { |
|
|
620 octave_value retval; |
|
|
621 |
|
|
622 if (args.length () == 1) |
|
|
623 retval = args(0).is_map (); |
|
|
624 else |
|
|
625 print_usage ("isstruct"); |
|
|
626 |
|
|
627 return retval; |
|
|
628 } |
|
|
629 |
|
|
630 DEFUN (fieldnames, args, , |
|
|
631 "-*- texinfo -*-\n\ |
|
|
632 @deftypefn {Built-in Function} {} fieldnames (@var{struct})\n\ |
|
|
633 Return a cell array of strings naming the elements of the structure\n\ |
|
|
634 @var{struct}. It is an error to call @code{fieldnames} with an\n\ |
|
|
635 argument that is not a structure.\n\ |
|
|
636 @end deftypefn") |
|
|
637 { |
|
|
638 octave_value retval; |
|
|
639 |
|
|
640 int nargin = args.length (); |
|
|
641 |
|
|
642 if (nargin == 1) |
|
|
643 { |
|
|
644 if (args(0).is_map ()) |
|
|
645 { |
|
|
646 Octave_map m = args(0).map_value (); |
|
4744
|
647 string_vector keys = m.keys (); |
|
|
648 if (keys.length () == 0) |
|
|
649 retval = Cell (0, 1); |
|
|
650 else |
|
|
651 retval = Cell (m.keys ()); |
|
4358
|
652 } |
|
|
653 else |
|
|
654 gripe_wrong_type_arg ("fieldnames", args(0)); |
|
|
655 } |
|
|
656 else |
|
|
657 print_usage ("fieldnames"); |
|
|
658 |
|
|
659 return retval; |
|
|
660 } |
|
|
661 |
|
|
662 DEFUN (isfield, args, , |
|
|
663 "-*- texinfo -*-\n\ |
|
|
664 @deftypefn {Built-in Function} {} isfield (@var{expr}, @var{name})\n\ |
|
|
665 Return true if the expression @var{expr} is a structure and it includes an\n\ |
|
|
666 element named @var{name}. The first argument must be a structure and\n\ |
|
|
667 the second must be a string.\n\ |
|
|
668 @end deftypefn") |
|
|
669 { |
|
|
670 octave_value retval; |
|
|
671 |
|
|
672 int nargin = args.length (); |
|
|
673 |
|
|
674 if (nargin == 2) |
|
|
675 { |
|
|
676 retval = false; |
|
|
677 |
|
|
678 // XXX FIXME XXX -- should this work for all types that can do |
|
|
679 // structure reference operations? |
|
|
680 |
|
|
681 if (args(0).is_map () && args(1).is_string ()) |
|
|
682 { |
|
|
683 std::string key = args(1).string_value (); |
|
|
684 |
|
|
685 Octave_map m = args(0).map_value (); |
|
|
686 |
|
|
687 retval = m.contains (key) != 0; |
|
|
688 } |
|
|
689 } |
|
|
690 else |
|
|
691 print_usage ("isfield"); |
|
|
692 |
|
|
693 return retval; |
|
|
694 } |
|
|
695 |
|
4750
|
696 // Check that the dimensions of the input arguments are correct. |
|
|
697 |
|
|
698 static bool |
|
|
699 cell2struct_check_args (const dim_vector& c_dv, const dim_vector& f_dv, |
|
|
700 bool is_cell, int dim) |
|
|
701 { |
|
4751
|
702 bool retval = true; |
|
4750
|
703 |
|
|
704 if (dim >= 0 && dim < c_dv.length ()) |
|
|
705 { |
|
|
706 if (is_cell) |
|
|
707 { |
|
4752
|
708 if (f_dv.numel () != c_dv(dim)) |
|
4750
|
709 { |
|
4751
|
710 error ("cell2struct: numel (FIELD) != size (CELL, DIM)"); |
|
4750
|
711 |
|
|
712 retval = false; |
|
|
713 } |
|
|
714 } |
|
|
715 else |
|
|
716 { |
|
|
717 if (f_dv.length () > 2) |
|
|
718 { |
|
4751
|
719 error ("cell2struct: field array must be a 2-d matrix"); |
|
4750
|
720 |
|
|
721 retval = false; |
|
|
722 } |
|
|
723 else if (f_dv(0) != c_dv(dim)) |
|
|
724 { |
|
4751
|
725 error ("cell2struct: size (FIELD, 1) != length (C, DIM)"); |
|
4750
|
726 |
|
|
727 retval = false; |
|
|
728 } |
|
|
729 } |
|
|
730 } |
|
|
731 else |
|
|
732 { |
|
|
733 error ("cell2struct: DIM out of range"); |
|
|
734 |
|
|
735 retval = false; |
|
|
736 } |
|
|
737 |
|
|
738 return retval; |
|
|
739 } |
|
|
740 |
|
|
741 static void |
|
5275
|
742 cell2struct_construct_idx (Array<octave_idx_type>& ra_idx1, |
|
|
743 const Array<octave_idx_type>& ra_idx2, |
|
|
744 octave_idx_type dim, octave_idx_type fill_value) |
|
4750
|
745 { |
|
5275
|
746 octave_idx_type iidx = 0; |
|
4750
|
747 |
|
5275
|
748 for (octave_idx_type idx = 0; idx < ra_idx1.length (); idx++) |
|
4750
|
749 { |
|
|
750 if (idx == dim) |
|
|
751 ra_idx1.elem (idx) = fill_value; |
|
|
752 else |
|
|
753 ra_idx1.elem (idx) = ra_idx2(iidx++); |
|
|
754 } |
|
|
755 } |
|
|
756 |
|
|
757 DEFUN (cell2struct, args, , |
|
|
758 "-*- texinfo -*-\n\ |
|
4817
|
759 @deftypefn {Built-in Function} {} cell2struct (@var{cell}, @var{fields}, @var{dim})\n\ |
|
|
760 Convert @var{cell} to a structure. The number of fields in @var{fields}\n\ |
|
|
761 must match the number of elements in @var{cell} along dimension @var{dim},\n\ |
|
|
762 that is @code{numel (@var{fields}) == size (@var{cell}, @var{dim})}.\n\ |
|
4750
|
763 \n\ |
|
|
764 @example\n\ |
|
|
765 @group\n\ |
|
|
766 A = cell2struct(@{'Peter', 'Hannah', 'Robert'; 185, 170, 168@}, @{'Name','Height'@}, 1);\n\ |
|
|
767 A(1)\n\ |
|
|
768 @result{} ans =\n\ |
|
4780
|
769 @{\n\ |
|
|
770 Height = 185\n\ |
|
|
771 Name = Peter\n\ |
|
|
772 @}\n\ |
|
4750
|
773 \n\ |
|
|
774 @end group\n\ |
|
|
775 @end example\n\ |
|
|
776 @end deftypefn") |
|
|
777 { |
|
|
778 octave_value retval; |
|
|
779 |
|
4751
|
780 if (args.length () == 3) |
|
4750
|
781 { |
|
4751
|
782 Cell c = args(0).cell_value (); |
|
4750
|
783 |
|
4751
|
784 if (! error_state) |
|
4750
|
785 { |
|
4751
|
786 octave_value field = args(1); |
|
4750
|
787 |
|
4751
|
788 // Field is either cell or character matrix. |
|
4750
|
789 |
|
4752
|
790 // XXX FIXME XX -- this could be simplified if we had |
|
|
791 // cellstr and iscellstr functions available. |
|
|
792 |
|
4751
|
793 bool field_is_cell = field.is_cell (); |
|
4750
|
794 |
|
4751
|
795 Cell field_cell; |
|
|
796 charMatrix field_char; |
|
4750
|
797 |
|
|
798 if (field_is_cell) |
|
4751
|
799 field_cell = field.cell_value (); |
|
|
800 else |
|
|
801 field_char = field.char_matrix_value (); |
|
|
802 |
|
|
803 if (! error_state) |
|
4750
|
804 { |
|
4751
|
805 // Retrieve the dimension value. |
|
|
806 |
|
|
807 // XXX FIX ME XXX -- int_value () should print out the |
|
|
808 // conversions it does to be Matlab compatible. |
|
|
809 |
|
5275
|
810 octave_idx_type dim = args(2).int_value () - 1; |
|
4751
|
811 |
|
|
812 if (! error_state) |
|
|
813 { |
|
|
814 dim_vector c_dv = c.dims (); |
|
|
815 dim_vector field_dv = field.dims (); |
|
|
816 |
|
|
817 if (cell2struct_check_args (c_dv, field_dv, field_is_cell, |
|
|
818 dim)) |
|
|
819 { |
|
5275
|
820 octave_idx_type c_dv_length = c_dv.length (); |
|
4751
|
821 |
|
|
822 // Dimension vector for the Cell arrays to be |
|
|
823 // put into the structure. |
|
|
824 |
|
|
825 dim_vector value_dv; |
|
|
826 |
|
|
827 // Initialize c_value_dv. |
|
4750
|
828 |
|
4751
|
829 if (c_dv_length == 2) |
|
|
830 value_dv = dim_vector (1, 1); |
|
|
831 else |
|
|
832 value_dv.resize (c_dv_length - 1); |
|
|
833 |
|
5275
|
834 octave_idx_type idx_tmp = 0; |
|
4751
|
835 |
|
5275
|
836 for (octave_idx_type i = 0; i < c_dv_length; i++) |
|
4751
|
837 { |
|
|
838 if (i != dim) |
|
|
839 value_dv.elem (idx_tmp++) = c_dv.elem (i); |
|
|
840 } |
|
|
841 |
|
|
842 // All initializing is done, we can start moving |
|
|
843 // values. |
|
|
844 |
|
|
845 Octave_map map; |
|
|
846 |
|
|
847 // If field is a cell array then we use all |
|
|
848 // elements in array, on the other hand when |
|
|
849 // field is a character array the number of |
|
|
850 // elements is equals the number of rows. |
|
|
851 |
|
5275
|
852 octave_idx_type field_numel |
|
4751
|
853 = field_is_cell ? field_dv.numel (): field_dv(0); |
|
|
854 |
|
|
855 // For matlab compatibility. |
|
|
856 |
|
|
857 if (field_numel == 0) |
|
|
858 map.reshape (dim_vector (0, 1)); |
|
4750
|
859 |
|
5275
|
860 for (octave_idx_type i = 0; i < field_numel; i++) |
|
4751
|
861 { |
|
|
862 // Construct cell array which goes into the |
|
|
863 // structure together with the appropriate |
|
|
864 // field name. |
|
|
865 |
|
|
866 Cell c_value (value_dv); |
|
|
867 |
|
5275
|
868 Array<octave_idx_type> value_idx (value_dv.length (), 0); |
|
|
869 Array<octave_idx_type> c_idx (c_dv_length, 0); |
|
4751
|
870 |
|
5275
|
871 for (octave_idx_type j = 0; j < value_dv.numel (); j++) |
|
4751
|
872 { |
|
|
873 // Need to do this to construct the |
|
|
874 // appropriate idx for getting elements |
|
|
875 // from the original cell array. |
|
|
876 |
|
|
877 cell2struct_construct_idx (c_idx, value_idx, |
|
|
878 dim, i); |
|
|
879 |
|
|
880 c_value.elem (value_idx) = c.elem (c_idx); |
|
|
881 |
|
|
882 increment_index (value_idx, value_dv); |
|
|
883 } |
|
|
884 |
|
|
885 std::string field_str; |
|
4750
|
886 |
|
4751
|
887 if (field_is_cell) |
|
|
888 { |
|
|
889 // Matlab retrieves the field values |
|
|
890 // column by column. |
|
|
891 |
|
|
892 octave_value field_tmp = field_cell.elem (i); |
|
|
893 |
|
|
894 field_str = field_tmp.string_value (); |
|
|
895 |
|
|
896 if (error_state) |
|
|
897 { |
|
|
898 error ("cell2struct: fields have to be of type string"); |
|
|
899 break; |
|
|
900 } |
|
|
901 } |
|
|
902 else |
|
|
903 { |
|
|
904 field_str = field_char.row_as_string (i); |
|
|
905 |
|
|
906 if (error_state) |
|
|
907 return retval; |
|
|
908 } |
|
|
909 |
|
|
910 map.reshape (value_dv); |
|
|
911 |
|
|
912 map.assign (field_str, c_value); |
|
|
913 } |
|
|
914 |
|
|
915 if (! error_state) |
|
|
916 retval = map; |
|
|
917 } |
|
4750
|
918 } |
|
4751
|
919 else |
|
|
920 error ("cell2struct: expecting third argument to be an integer"); |
|
4750
|
921 } |
|
|
922 else |
|
4751
|
923 error ("cell2struct: expecting second argument to be a cell or character array"); |
|
4750
|
924 } |
|
4751
|
925 else |
|
|
926 error ("cell2struct: expecting first argument to be a cell array"); |
|
4750
|
927 } |
|
4751
|
928 else |
|
|
929 print_usage ("cell2struct"); |
|
4750
|
930 |
|
|
931 return retval; |
|
|
932 } |
|
|
933 |
|
4817
|
934 // So we can call Fcellstr directly. |
|
|
935 extern octave_value_list Fcellstr (const octave_value_list& args, int); |
|
|
936 |
|
|
937 DEFUN (rmfield, args, , |
|
|
938 "-*- texinfo -*-\n\ |
|
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939 @deftypefn {Built-in Function} {} rmfield (@var{s}, @var{f})\n\ |
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940 Remove field @var{f} from the structure @var{s}. If @var{f} is a\n\ |
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941 cell array of character strings or a character array, remove the\n\ |
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942 named fields.\n\ |
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943 @end deftypefn\n\ |
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944 @seealso{cellstr, iscellstr, and setfield") |
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945 { |
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946 octave_value retval; |
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947 |
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948 int nargin = args.length (); |
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949 |
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950 if (nargin == 2) |
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951 { |
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952 Octave_map m = args(0).map_value (); |
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953 |
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954 octave_value_list fval = Fcellstr (args(1), 1); |
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955 |
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956 if (! error_state) |
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957 { |
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958 Cell fcell = fval(0).cell_value (); |
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959 |
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960 for (int i = 0; i < fcell.numel (); i++) |
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961 { |
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962 std::string key = fcell(i).string_value (); |
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963 |
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964 if (m.contains (key)) |
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965 m.del (key); |
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966 else |
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967 { |
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968 error ("rmfield: structure does not contain field %s", |
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969 key.c_str ()); |
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970 |
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971 break; |
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972 } |
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973 } |
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974 |
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975 if (! error_state) |
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976 retval = m; |
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977 } |
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978 } |
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979 else |
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980 print_usage ("rmfield"); |
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981 |
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982 return retval; |
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983 } |
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984 |
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985 bool |
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986 octave_struct::save_ascii (std::ostream& os, bool& infnan_warned, |
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987 bool strip_nan_and_inf) |
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988 { |
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989 Octave_map m = map_value (); |
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990 os << "# length: " << m.length () << "\n"; |
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991 |
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992 Octave_map::iterator i = m.begin (); |
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993 while (i != m.end ()) |
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994 { |
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5341
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995 octave_value val = map.contents (i); |
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4817
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996 |
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5341
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997 bool b = save_ascii_data (os, val, m.key (i), infnan_warned, |
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4817
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998 strip_nan_and_inf, 0, 0); |
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999 |
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1000 if (! b) |
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1001 return os; |
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1002 |
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1003 i++; |
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1004 } |
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1005 |
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1006 return true; |
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1007 } |
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1008 |
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1009 bool |
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1010 octave_struct::load_ascii (std::istream& is) |
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1011 { |
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5275
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1012 octave_idx_type len = 0; |
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4817
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1013 bool success = true; |
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1014 |
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1015 if (extract_keyword (is, "length", len) && len >= 0) |
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1016 { |
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1017 if (len > 0) |
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1018 { |
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1019 Octave_map m (map); |
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1020 |
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5275
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1021 for (octave_idx_type j = 0; j < len; j++) |
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4817
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1022 { |
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1023 octave_value t2; |
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1024 bool dummy; |
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1025 |
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1026 // recurse to read cell elements |
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1027 std::string nm |
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1028 = read_ascii_data (is, std::string (), dummy, t2, count); |
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1029 |
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1030 if (!is) |
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1031 break; |
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1032 |
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5342
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1033 // Try for some backward compatibility... |
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5433
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1034 if (t2.is_cell () && t2.length() > 1) |
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1035 m.assign (nm, t2); |
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1036 else |
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5336
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1037 { |
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5433
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1038 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
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1039 |
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1040 if (error_state) |
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1041 { |
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1042 error ("load: internal error loading struct elements"); |
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1043 return false; |
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1044 } |
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1045 |
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1046 m.assign (nm, tcell); |
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5336
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1047 } |
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4817
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1048 } |
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1049 |
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1050 if (is) |
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1051 map = m; |
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1052 else |
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1053 { |
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1054 error ("load: failed to load structure"); |
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1055 success = false; |
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1056 } |
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1057 } |
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1058 else if (len == 0 ) |
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1059 map = Octave_map (); |
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1060 else |
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1061 panic_impossible (); |
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1062 } |
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1063 else { |
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1064 error ("load: failed to extract number of elements in structure"); |
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1065 success = false; |
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1066 } |
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1067 |
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1068 return success; |
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1069 } |
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1070 |
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1071 bool |
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1072 octave_struct::save_binary (std::ostream& os, bool& save_as_floats) |
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1073 { |
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1074 Octave_map m = map_value (); |
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1075 |
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1076 FOUR_BYTE_INT len = m.length(); |
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1077 os.write (X_CAST (char *, &len), 4); |
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1078 |
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1079 Octave_map::iterator i = m.begin (); |
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1080 while (i != m.end ()) |
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1081 { |
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5341
|
1082 octave_value val = map.contents (i); |
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4817
|
1083 |
|
5341
|
1084 bool b = save_binary_data (os, val, m.key (i), "", 0, save_as_floats); |
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4817
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1085 |
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1086 if (! b) |
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1087 return os; |
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1088 |
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1089 i++; |
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1090 } |
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1091 |
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1092 return true; |
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1093 } |
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1094 |
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1095 bool |
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1096 octave_struct::load_binary (std::istream& is, bool swap, |
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1097 oct_mach_info::float_format fmt) |
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1098 { |
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1099 bool success = true; |
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1100 FOUR_BYTE_INT len; |
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1101 if (! is.read (X_CAST (char *, &len), 4)) |
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1102 return false; |
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1103 if (swap) |
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4944
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1104 swap_bytes<4> (&len); |
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4817
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1105 |
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1106 if (len > 0) |
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1107 { |
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1108 Octave_map m (map); |
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1109 |
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5275
|
1110 for (octave_idx_type j = 0; j < len; j++) |
|
4817
|
1111 { |
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1112 octave_value t2; |
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1113 bool dummy; |
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1114 std::string doc; |
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1115 |
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1116 // recurse to read cell elements |
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1117 std::string nm = read_binary_data (is, swap, fmt, std::string (), |
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1118 dummy, t2, doc); |
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1119 |
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1120 if (!is) |
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1121 break; |
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1122 |
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5342
|
1123 // Try for some backward compatibility... |
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5433
|
1124 if (t2.is_cell () && t2.length() > 1) |
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1125 m.assign (nm, t2); |
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1126 else |
|
5336
|
1127 { |
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5433
|
1128 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
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1129 |
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1130 if (error_state) |
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1131 { |
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1132 error ("load: internal error loading struct elements"); |
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1133 return false; |
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1134 } |
|
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1135 |
|
|
1136 m.assign (nm, tcell); |
|
5336
|
1137 } |
|
4817
|
1138 } |
|
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1139 |
|
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1140 if (is) |
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1141 map = m; |
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1142 else |
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1143 { |
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1144 error ("load: failed to load structure"); |
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|
1145 success = false; |
|
|
1146 } |
|
|
1147 } |
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|
1148 else if (len == 0 ) |
|
|
1149 map = Octave_map (); |
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1150 else |
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|
1151 panic_impossible (); |
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1152 |
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1153 return success; |
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1154 } |
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1155 |
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1156 #if defined (HAVE_HDF5) |
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1157 |
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1158 bool |
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1159 octave_struct::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
|
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1160 { |
|
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1161 hid_t data_hid = -1; |
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1162 |
|
|
1163 data_hid = H5Gcreate (loc_id, name, 0); |
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1164 if (data_hid < 0) return false; |
|
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1165 |
|
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1166 // recursively add each element of the structure to this group |
|
|
1167 Octave_map m = map_value (); |
|
|
1168 Octave_map::iterator i = m.begin (); |
|
|
1169 while (i != m.end ()) |
|
|
1170 { |
|
5341
|
1171 octave_value val = map.contents (i); |
|
4817
|
1172 |
|
5341
|
1173 bool retval2 = add_hdf5_data (data_hid, val, m.key (i), "", false, |
|
4817
|
1174 save_as_floats); |
|
|
1175 |
|
|
1176 if (! retval2) |
|
|
1177 break; |
|
|
1178 |
|
|
1179 i++; |
|
|
1180 } |
|
|
1181 |
|
|
1182 H5Gclose (data_hid); |
|
4837
|
1183 |
|
4817
|
1184 return true; |
|
|
1185 } |
|
|
1186 |
|
|
1187 bool |
|
|
1188 octave_struct::load_hdf5 (hid_t loc_id, const char *name, |
|
|
1189 bool have_h5giterate_bug) |
|
|
1190 { |
|
|
1191 bool retval = false; |
|
|
1192 |
|
|
1193 hdf5_callback_data dsub; |
|
|
1194 |
|
|
1195 herr_t retval2 = 0; |
|
|
1196 Octave_map m; |
|
|
1197 int current_item = 0; |
|
|
1198 #ifdef HAVE_H5GGET_NUM_OBJS |
|
|
1199 hsize_t num_obj = 0; |
|
5060
|
1200 hid_t group_id = H5Gopen (loc_id, name); |
|
|
1201 H5Gget_num_objs (group_id, &num_obj); |
|
|
1202 H5Gclose (group_id); |
|
4817
|
1203 |
|
|
1204 while (current_item < static_cast<int> (num_obj) |
|
|
1205 && (retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
1206 hdf5_read_next_data, &dsub)) > 0) |
|
|
1207 #else |
|
|
1208 while ((retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
1209 hdf5_read_next_data, &dsub)) > 0) |
|
|
1210 #endif |
|
|
1211 { |
|
5342
|
1212 octave_value t2 = dsub.tc; |
|
|
1213 |
|
|
1214 // Try for some backward compatibility... |
|
5433
|
1215 if (t2.is_cell () && t2.length() > 1) |
|
|
1216 m.assign (dsub.name, t2); |
|
|
1217 else |
|
5336
|
1218 { |
|
5433
|
1219 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
|
|
1220 |
|
|
1221 if (error_state) |
|
|
1222 { |
|
|
1223 error ("load: internal error loading struct elements"); |
|
|
1224 return false; |
|
|
1225 } |
|
|
1226 |
|
|
1227 m.assign (dsub.name, tcell); |
|
5336
|
1228 } |
|
|
1229 |
|
4817
|
1230 if (have_h5giterate_bug) |
|
|
1231 current_item++; // H5Giterate returned the last index processed |
|
|
1232 } |
|
|
1233 |
|
|
1234 if (retval2 >= 0) |
|
|
1235 { |
|
|
1236 map = m; |
|
|
1237 retval = true; |
|
|
1238 } |
|
|
1239 |
|
|
1240 return retval; |
|
|
1241 } |
|
|
1242 |
|
4687
|
1243 #endif |
|
|
1244 |
|
2376
|
1245 /* |
|
|
1246 ;;; Local Variables: *** |
|
|
1247 ;;; mode: C++ *** |
|
|
1248 ;;; End: *** |
|
|
1249 */ |
