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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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3503
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31 #include <iostream> |
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32 |
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3933
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33 #include "Cell.h" |
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4358
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34 #include "defun.h" |
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35 #include "error.h" |
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4358
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36 #include "gripes.h" |
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2979
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37 #include "oct-lvalue.h" |
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3932
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38 #include "ov-list.h" |
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39 #include "ov-struct.h" |
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40 #include "unwind-prot.h" |
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2948
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41 #include "variables.h" |
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42 |
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4750
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43 #include "Array-util.h" |
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44 |
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4687
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45 #include "byte-swap.h" |
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46 #include "ls-oct-ascii.h" |
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47 #include "ls-oct-binary.h" |
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48 #include "ls-hdf5.h" |
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49 #include "ls-utils.h" |
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50 |
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3219
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51 DEFINE_OCTAVE_ALLOCATOR(octave_struct); |
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52 |
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4612
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53 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA(octave_struct, "struct", "struct"); |
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54 |
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4513
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55 Cell |
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56 octave_struct::dotref (const octave_value_list& idx) |
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2962
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57 { |
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58 Cell retval; |
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59 |
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60 assert (idx.length () == 1); |
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2962
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61 |
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62 std::string nm = idx(0).string_value (); |
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63 |
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4219
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64 Octave_map::const_iterator p = map.seek (nm); |
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65 |
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66 if (p != map.end ()) |
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67 retval = map.contents (p); |
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68 else |
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69 error ("structure has no member `%s'", nm.c_str ()); |
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70 |
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71 return retval; |
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72 } |
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73 |
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4513
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74 #if 0 |
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75 static void |
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76 gripe_invalid_index (void) |
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77 { |
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78 error ("invalid index for structure array"); |
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79 } |
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80 #endif |
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81 |
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82 static void |
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83 gripe_invalid_index_for_assignment (void) |
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84 { |
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85 error ("invalid index for structure array assignment"); |
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86 } |
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87 |
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88 static void |
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89 gripe_invalid_index_type (const std::string& nm, char t) |
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90 { |
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91 error ("%s cannot be indexed with %c", nm.c_str (), t); |
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92 } |
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93 |
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94 static void |
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95 gripe_failed_assignment (void) |
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96 { |
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97 error ("assignment to structure element failed"); |
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98 } |
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99 |
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100 octave_value |
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101 octave_struct::subsref (const std::string& type, |
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102 const std::list<octave_value_list>& idx) |
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103 { |
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104 octave_value retval; |
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105 |
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106 int skip = 1; |
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107 |
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108 switch (type[0]) |
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109 { |
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110 case '(': |
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111 { |
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112 if (type.length () > 1 && type[1] == '.') |
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113 { |
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4219
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114 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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115 octave_value_list key_idx = *++p; |
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116 |
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117 Cell tmp = dotref (key_idx); |
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118 |
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119 if (! error_state) |
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120 { |
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121 Cell t = tmp.index (idx.front ()); |
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122 |
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123 retval = (t.length () == 1) ? t(0) : octave_value (t, true); |
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124 |
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4513
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125 // We handled two index elements, so tell |
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126 // next_subsref to skip both of them. |
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127 |
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128 skip++; |
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129 } |
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130 } |
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131 else |
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132 retval = map.index (idx.front ()); |
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133 } |
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134 break; |
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135 |
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136 case '.': |
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137 { |
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138 Cell t = dotref (idx.front ()); |
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139 |
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140 retval = (t.length () == 1) ? t(0) : octave_value (t, true); |
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141 } |
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142 break; |
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143 |
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144 case '{': |
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145 gripe_invalid_index_type (type_name (), type[0]); |
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146 break; |
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147 |
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148 default: |
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149 panic_impossible (); |
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150 } |
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151 |
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152 if (! error_state) |
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153 retval = retval.next_subsref (type, idx, skip); |
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154 |
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155 return retval; |
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156 } |
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157 |
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158 octave_value |
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159 octave_struct::numeric_conv (const Cell& val, |
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160 const std::string& type) |
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161 { |
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162 octave_value retval; |
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163 |
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164 if (val.length () == 1) |
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165 { |
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166 retval = val(0); |
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167 |
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168 if (type.length () > 0 && type[0] == '.' && ! retval.is_map ()) |
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169 retval = Octave_map (); |
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170 } |
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171 else |
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172 gripe_invalid_index_for_assignment (); |
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173 |
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174 return retval; |
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175 } |
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176 |
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177 octave_value |
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178 octave_struct::subsasgn (const std::string& type, |
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179 const std::list<octave_value_list>& idx, |
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180 const octave_value& rhs) |
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181 { |
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182 octave_value retval; |
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183 |
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184 int n = type.length (); |
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185 |
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186 octave_value t_rhs = rhs; |
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187 |
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188 if (n > 1 && ! (type.length () == 2 && type[0] == '(' && type[1] == '.')) |
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189 { |
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190 switch (type[0]) |
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191 { |
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192 case '(': |
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193 { |
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194 if (type.length () > 1 && type[1] == '.') |
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195 { |
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4219
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196 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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197 octave_value_list t_idx = *p; |
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198 |
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199 octave_value_list key_idx = *++p; |
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200 |
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201 assert (key_idx.length () == 1); |
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202 |
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203 std::string key = key_idx(0).string_value (); |
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204 |
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205 octave_value u; |
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206 |
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207 if (! map.contains (key)) |
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208 u = octave_value::empty_conv (type.substr (2), rhs); |
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209 else |
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210 { |
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211 Cell map_val = map.contents (key); |
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212 |
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213 Cell map_elt = map_val.index (idx.front (), true); |
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214 |
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215 u = numeric_conv (map_elt, type.substr (2)); |
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216 } |
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217 |
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218 if (! error_state) |
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219 { |
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220 std::list<octave_value_list> next_idx (idx); |
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221 |
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222 // We handled two index elements, so subsasgn to |
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223 // needs to skip both of them. |
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224 |
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225 next_idx.erase (next_idx.begin ()); |
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226 next_idx.erase (next_idx.begin ()); |
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227 |
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228 u.make_unique (); |
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229 |
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230 t_rhs = u.subsasgn (type.substr (2), next_idx, rhs); |
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231 } |
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232 } |
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233 else |
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234 gripe_invalid_index_for_assignment (); |
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235 } |
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236 break; |
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237 |
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238 case '.': |
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239 { |
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240 octave_value_list key_idx = idx.front (); |
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241 |
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242 assert (key_idx.length () == 1); |
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243 |
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244 std::string key = key_idx(0).string_value (); |
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245 |
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246 octave_value u; |
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247 |
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248 if (! map.contains (key)) |
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249 u = octave_value::empty_conv (type.substr (1), rhs); |
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250 else |
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251 { |
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252 Cell map_val = map.contents (key); |
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253 |
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254 u = numeric_conv (map_val, type.substr (1)); |
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255 } |
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256 |
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257 if (! error_state) |
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258 { |
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4219
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259 std::list<octave_value_list> next_idx (idx); |
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3933
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260 |
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261 next_idx.erase (next_idx.begin ()); |
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3933
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262 |
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4059
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263 u.make_unique (); |
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264 |
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3933
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265 t_rhs = u.subsasgn (type.substr (1), next_idx, rhs); |
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266 } |
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267 } |
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268 break; |
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269 |
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270 case '{': |
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271 gripe_invalid_index_type (type_name (), type[0]); |
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272 break; |
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273 |
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274 default: |
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275 panic_impossible (); |
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276 } |
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277 } |
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278 |
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279 if (! error_state) |
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280 { |
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281 switch (type[0]) |
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282 { |
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283 case '(': |
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284 { |
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285 if (n > 1 && type[1] == '.') |
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286 { |
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4219
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287 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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288 octave_value_list key_idx = *++p; |
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3933
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289 |
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290 assert (key_idx.length () == 1); |
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291 |
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292 std::string key = key_idx(0).string_value (); |
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293 |
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294 if (! error_state) |
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295 { |
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4513
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296 map.assign (idx.front (), key, t_rhs); |
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3933
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297 |
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4513
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298 if (! error_state) |
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299 retval = octave_value (this, count + 1); |
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3933
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300 else |
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4513
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301 gripe_failed_assignment (); |
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3933
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302 } |
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303 else |
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304 gripe_failed_assignment (); |
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305 } |
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306 else |
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4197
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307 { |
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4513
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308 Octave_map rhs_map = t_rhs.map_value (); |
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4197
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309 |
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4513
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310 if (! error_state) |
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4197
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311 { |
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4513
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312 map.assign (idx.front (), rhs_map); |
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4197
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313 |
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314 if (! error_state) |
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4513
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315 retval = octave_value (this, count + 1); |
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4197
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316 else |
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4513
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317 gripe_failed_assignment (); |
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4197
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318 } |
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4513
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319 else |
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320 error ("invalid structure assignment"); |
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4197
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321 } |
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3933
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322 } |
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323 break; |
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324 |
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325 case '.': |
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326 { |
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327 octave_value_list key_idx = idx.front (); |
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328 |
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329 assert (key_idx.length () == 1); |
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330 |
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331 std::string key = key_idx(0).string_value (); |
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332 |
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333 map.assign (key, t_rhs); |
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334 |
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335 if (! error_state) |
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336 retval = octave_value (this, count + 1); |
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337 else |
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338 gripe_failed_assignment (); |
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339 } |
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340 break; |
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341 |
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342 case '{': |
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343 gripe_invalid_index_type (type_name (), type[0]); |
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344 break; |
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345 |
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346 default: |
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347 panic_impossible (); |
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348 } |
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349 } |
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350 else |
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351 gripe_failed_assignment (); |
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352 |
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353 return retval; |
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354 } |
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355 |
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356 void |
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3523
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357 octave_struct::print (std::ostream& os, bool) const |
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2901
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358 { |
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359 print_raw (os); |
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360 } |
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361 |
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362 void |
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3523
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363 octave_struct::print_raw (std::ostream& os, bool) const |
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364 { |
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365 // XXX FIXME XXX -- would be nice to print the output in some |
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366 // standard order. Maybe all substructures first, maybe |
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367 // alphabetize entries, etc. |
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368 |
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2985
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369 unwind_protect::begin_frame ("octave_struct_print"); |
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370 |
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371 unwind_protect_int (Vstruct_levels_to_print); |
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372 |
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3961
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373 if (Vstruct_levels_to_print >= 0) |
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374 { |
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3961
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375 bool print_keys_only = (Vstruct_levels_to_print == 0); |
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376 |
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377 Vstruct_levels_to_print--; |
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378 |
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2901
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379 indent (os); |
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380 os << "{"; |
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381 newline (os); |
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382 |
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2901
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383 increment_indent_level (); |
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384 |
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4561
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385 int n = map.numel (); |
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3932
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386 |
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4604
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387 if (n > 1 && print_keys_only) |
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388 { |
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389 indent (os); |
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390 dim_vector dv = dims (); |
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391 os << dv.str () << " struct array containing the fields:"; |
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392 newline (os); |
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393 newline (os); |
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394 |
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395 increment_indent_level (); |
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396 } |
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397 |
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4219
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398 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) |
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2376
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399 { |
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3523
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400 std::string key = map.key (p); |
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4513
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401 Cell val = map.contents (p); |
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2376
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402 |
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4499
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403 octave_value tmp = (n == 1) ? val(0) : octave_value (val, true); |
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3961
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404 |
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405 if (print_keys_only) |
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3932
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406 { |
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3961
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407 indent (os); |
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4604
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408 os << key; |
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409 if (n == 1) |
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410 { |
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411 dim_vector dv = tmp.dims (); |
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412 os << ": " << dv.str () << " " << tmp.type_name (); |
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413 } |
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3961
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414 newline (os); |
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3932
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415 } |
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3961
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416 else |
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4121
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417 tmp.print_with_name (os, key); |
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2376
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418 } |
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419 |
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4604
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420 if (n > 1 && print_keys_only) |
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421 decrement_indent_level (); |
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422 |
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2901
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423 decrement_indent_level (); |
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2376
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424 |
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2901
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425 indent (os); |
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426 os << "}"; |
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427 newline (os); |
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2376
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428 } |
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429 else |
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2901
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430 { |
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3961
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431 indent (os); |
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432 os << "<structure>"; |
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2901
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433 newline (os); |
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434 } |
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2376
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435 |
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2985
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436 unwind_protect::run_frame ("octave_struct_print"); |
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2376
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437 } |
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438 |
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2901
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439 bool |
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3523
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440 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
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2901
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441 { |
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3961
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442 bool retval = false; |
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443 |
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2901
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444 indent (os); |
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3961
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445 |
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446 if (Vstruct_levels_to_print < 0) |
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447 os << name << " = "; |
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448 else |
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449 { |
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450 os << name << " ="; |
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451 newline (os); |
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452 retval = true; |
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453 } |
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454 |
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455 return retval; |
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2901
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456 } |
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457 |
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4744
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458 static bool |
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459 scalar (const dim_vector& dims) |
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460 { |
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461 return dims.length () == 2 && dims (0) == 1 && dims (1) == 1; |
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462 } |
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463 |
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464 // XXX FIXME XXX -- move these tests to the test directory? |
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465 /* |
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466 %!shared x |
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467 %! x(1).a=1; x(2).a=2; x(1).b=3; x(2).b=3; |
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468 %!assert(struct('a',1,'b',3),x(1)) |
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469 %!assert(struct('a',{},'b',{}),x([])) |
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470 %!assert(struct('a',{1,2},'b',{3,3}),x) |
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471 %!assert(struct('a',{1,2},'b',3),x) |
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472 %!assert(struct('a',{1,2},'b',{3}),x) |
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473 %!assert(struct('b',3,'a',{1,2}),x) |
|
|
474 %!assert(struct('b',{3},'a',{1,2}),x) |
|
|
475 %!test x=struct([]); |
|
|
476 %!assert(size(x),[0,0]); |
|
|
477 %!assert(isstruct(x)); |
|
|
478 %!assert(isempty(fieldnames(x))); |
|
|
479 %!fail("struct('a',{1,2},'b',{1,2,3})","dimensions of parameter 2 do not match those of parameter 4") |
|
|
480 %!fail("struct(1,2,3,4)","struct expects alternating 'field',value pairs"); |
|
|
481 %!fail("struct('1',2,'3')","struct expects alternating 'field',value pairs"); |
|
|
482 */ |
|
|
483 |
|
|
484 DEFUN (struct, args, , |
|
|
485 "-*- texinfo -*-\n\ |
|
|
486 @deftypefn {Built-in Function} {} struct (\"field\", @var{value}, \"field\", @var{value}, @dots{})\n\ |
|
|
487 \n\ |
|
|
488 Create a structure and initialize its value.\n\ |
|
|
489 \n\ |
|
|
490 If the values are cell arrays, create a structure array and initialize\n\ |
|
|
491 its values. The dimensions of each cell array of values must match.\n\ |
|
|
492 Singleton cells and non-cell values are repeated so that they fill\n\ |
|
|
493 the entire array. If the cells are empty, create an empty structure\n\ |
|
|
494 array with the specified field names.") |
|
|
495 { |
|
|
496 octave_value_list retval; |
|
|
497 |
|
|
498 int nargin = args.length (); |
|
|
499 |
|
|
500 // struct([]) returns an empty struct. |
|
|
501 // XXX FIXME XXX should struct() also create an empty struct? |
|
|
502 |
|
|
503 if (nargin == 1 && args(0).is_empty () && args(0).is_real_matrix ()) |
|
|
504 return octave_value (Octave_map ()); |
|
|
505 |
|
|
506 // Check for "field", VALUE pairs. |
|
|
507 |
|
|
508 for (int i = 0; i < nargin; i += 2) |
|
|
509 { |
|
|
510 if (! args(i).is_string () || i + 1 >= nargin) |
|
|
511 { |
|
|
512 error ("struct expects alternating \"field\", VALUE pairs"); |
|
|
513 return retval; |
|
|
514 } |
|
|
515 } |
|
|
516 |
|
|
517 // Check that the dimensions of the values correspond. |
|
|
518 |
|
|
519 dim_vector dims (1, 1); |
|
|
520 |
|
|
521 int first_dimensioned_value = 0; |
|
|
522 |
|
|
523 for (int i = 1; i < nargin; i += 2) |
|
|
524 { |
|
|
525 if (args(i).is_cell ()) |
|
|
526 { |
|
|
527 dim_vector argdims (args(i).dims ()); |
|
|
528 |
|
|
529 if (! scalar (argdims)) |
|
|
530 { |
|
|
531 if (! first_dimensioned_value) |
|
|
532 { |
|
|
533 dims = argdims; |
|
|
534 first_dimensioned_value = i + 1; |
|
|
535 } |
|
|
536 else if (dims != argdims) |
|
|
537 { |
|
|
538 error ("struct: dimensions of parameter %d do not match those of parameter %d", |
|
|
539 first_dimensioned_value, i+1); |
|
|
540 return retval; |
|
|
541 } |
|
|
542 } |
|
|
543 } |
|
|
544 } |
|
|
545 |
|
|
546 // Create the return value. |
|
|
547 |
|
|
548 Octave_map map (dims); |
|
|
549 |
|
|
550 for (int i = 0; i < nargin; i+= 2) |
|
|
551 { |
|
|
552 // Get key. |
|
|
553 |
|
|
554 std::string key (args(i).string_value ()); |
|
|
555 |
|
|
556 if (error_state) |
|
|
557 return retval; |
|
|
558 |
|
|
559 // Value may be v, { v }, or { v1, v2, ... } |
|
|
560 // In the first two cases, we need to create a cell array of |
|
|
561 // the appropriate dimensions filled with v. In the last case, |
|
|
562 // the cell array has already been determined to be of the |
|
|
563 // correct dimensions. |
|
|
564 |
|
|
565 if (args(i+1).is_cell ()) |
|
|
566 { |
|
|
567 const Cell c (args(i+1).cell_value ()); |
|
|
568 |
|
|
569 if (error_state) |
|
|
570 return retval; |
|
|
571 |
|
|
572 if (scalar (c.dims ())) |
|
|
573 map.assign (key, Cell (dims, c(0))); |
|
|
574 else |
|
|
575 map.assign (key, c); |
|
|
576 } |
|
|
577 else |
|
|
578 map.assign (key, Cell (dims, args(i+1))); |
|
|
579 |
|
|
580 if (error_state) |
|
|
581 return retval; |
|
|
582 } |
|
|
583 |
|
|
584 return octave_value (map); |
|
|
585 } |
|
|
586 |
|
4358
|
587 DEFUN (isstruct, args, , |
|
|
588 "-*- texinfo -*-\n\ |
|
|
589 @deftypefn {Built-in Function} {} isstruct (@var{expr})\n\ |
|
|
590 Return 1 if the value of the expression @var{expr} is a structure.\n\ |
|
|
591 @end deftypefn") |
|
|
592 { |
|
|
593 octave_value retval; |
|
|
594 |
|
|
595 if (args.length () == 1) |
|
|
596 retval = args(0).is_map (); |
|
|
597 else |
|
|
598 print_usage ("isstruct"); |
|
|
599 |
|
|
600 return retval; |
|
|
601 } |
|
|
602 |
|
|
603 DEFUN (fieldnames, args, , |
|
|
604 "-*- texinfo -*-\n\ |
|
|
605 @deftypefn {Built-in Function} {} fieldnames (@var{struct})\n\ |
|
|
606 Return a cell array of strings naming the elements of the structure\n\ |
|
|
607 @var{struct}. It is an error to call @code{fieldnames} with an\n\ |
|
|
608 argument that is not a structure.\n\ |
|
|
609 @end deftypefn") |
|
|
610 { |
|
|
611 octave_value retval; |
|
|
612 |
|
|
613 int nargin = args.length (); |
|
|
614 |
|
|
615 if (nargin == 1) |
|
|
616 { |
|
|
617 if (args(0).is_map ()) |
|
|
618 { |
|
|
619 Octave_map m = args(0).map_value (); |
|
4744
|
620 string_vector keys = m.keys (); |
|
|
621 if (keys.length () == 0) |
|
|
622 retval = Cell (0, 1); |
|
|
623 else |
|
|
624 retval = Cell (m.keys ()); |
|
4358
|
625 } |
|
|
626 else |
|
|
627 gripe_wrong_type_arg ("fieldnames", args(0)); |
|
|
628 } |
|
|
629 else |
|
|
630 print_usage ("fieldnames"); |
|
|
631 |
|
|
632 return retval; |
|
|
633 } |
|
|
634 |
|
|
635 DEFUN (isfield, args, , |
|
|
636 "-*- texinfo -*-\n\ |
|
|
637 @deftypefn {Built-in Function} {} isfield (@var{expr}, @var{name})\n\ |
|
|
638 Return true if the expression @var{expr} is a structure and it includes an\n\ |
|
|
639 element named @var{name}. The first argument must be a structure and\n\ |
|
|
640 the second must be a string.\n\ |
|
|
641 @end deftypefn") |
|
|
642 { |
|
|
643 octave_value retval; |
|
|
644 |
|
|
645 int nargin = args.length (); |
|
|
646 |
|
|
647 if (nargin == 2) |
|
|
648 { |
|
|
649 retval = false; |
|
|
650 |
|
|
651 // XXX FIXME XXX -- should this work for all types that can do |
|
|
652 // structure reference operations? |
|
|
653 |
|
|
654 if (args(0).is_map () && args(1).is_string ()) |
|
|
655 { |
|
|
656 std::string key = args(1).string_value (); |
|
|
657 |
|
|
658 Octave_map m = args(0).map_value (); |
|
|
659 |
|
|
660 retval = m.contains (key) != 0; |
|
|
661 } |
|
|
662 else |
|
|
663 print_usage ("isfield"); |
|
|
664 } |
|
|
665 else |
|
|
666 print_usage ("isfield"); |
|
|
667 |
|
|
668 return retval; |
|
|
669 } |
|
|
670 |
|
4687
|
671 bool |
|
|
672 octave_struct::save_ascii (std::ostream& os, bool& infnan_warned, |
|
|
673 bool strip_nan_and_inf) |
|
|
674 { |
|
|
675 Octave_map m = map_value (); |
|
|
676 os << "# length: " << m.length () << "\n"; |
|
|
677 |
|
|
678 Octave_map::iterator i = m.begin (); |
|
|
679 while (i != m.end ()) |
|
|
680 { |
|
|
681 Cell val = map.contents (i); |
|
|
682 octave_value tmp = (map.numel () == 1) ? val(0) : |
|
|
683 octave_value (val, true); |
|
|
684 |
|
|
685 bool b = save_ascii_data (os, tmp, m.key (i), infnan_warned, |
|
|
686 strip_nan_and_inf, 0, 0); |
|
|
687 |
|
|
688 if (! b) |
|
|
689 return os; |
|
|
690 |
|
|
691 i++; |
|
|
692 } |
|
|
693 |
|
|
694 return true; |
|
|
695 } |
|
|
696 |
|
|
697 bool |
|
|
698 octave_struct::load_ascii (std::istream& is) |
|
|
699 { |
|
|
700 int len = 0; |
|
|
701 bool success = true; |
|
|
702 |
|
|
703 if (extract_keyword (is, "length", len) && len >= 0) |
|
|
704 { |
|
|
705 if (len > 0) |
|
|
706 { |
|
|
707 Octave_map m (map); |
|
|
708 |
|
|
709 for (int j = 0; j < len; j++) |
|
|
710 { |
|
|
711 octave_value t2; |
|
|
712 bool dummy; |
|
|
713 |
|
|
714 // recurse to read cell elements |
|
|
715 std::string nm |
|
|
716 = read_ascii_data (is, std::string (), dummy, t2, count); |
|
|
717 |
|
|
718 if (!is) |
|
|
719 break; |
|
|
720 |
|
|
721 m.assign (nm, t2); |
|
|
722 } |
|
|
723 |
|
|
724 if (is) |
|
|
725 map = m; |
|
|
726 else |
|
|
727 { |
|
|
728 error ("load: failed to load structure"); |
|
|
729 success = false; |
|
|
730 } |
|
|
731 } |
|
|
732 else if (len == 0 ) |
|
|
733 map = Octave_map (); |
|
|
734 else |
|
|
735 panic_impossible (); |
|
|
736 } |
|
|
737 else { |
|
|
738 error ("load: failed to extract number of elements in structure"); |
|
|
739 success = false; |
|
|
740 } |
|
|
741 |
|
|
742 return success; |
|
|
743 } |
|
|
744 |
|
|
745 bool |
|
|
746 octave_struct::save_binary (std::ostream& os, bool& save_as_floats) |
|
|
747 { |
|
|
748 Octave_map m = map_value (); |
|
|
749 |
|
|
750 FOUR_BYTE_INT len = m.length(); |
|
|
751 os.write (X_CAST (char *, &len), 4); |
|
|
752 |
|
|
753 Octave_map::iterator i = m.begin (); |
|
|
754 while (i != m.end ()) |
|
|
755 { |
|
|
756 Cell val = map.contents (i); |
|
|
757 octave_value tmp = (map.numel () == 1) ? val(0) : |
|
|
758 octave_value (val, true); |
|
|
759 |
|
|
760 bool b = save_binary_data (os, tmp, m.key (i), "", 0, save_as_floats); |
|
|
761 |
|
|
762 if (! b) |
|
|
763 return os; |
|
|
764 |
|
|
765 i++; |
|
|
766 } |
|
|
767 |
|
|
768 return true; |
|
|
769 } |
|
|
770 |
|
|
771 bool |
|
|
772 octave_struct::load_binary (std::istream& is, bool swap, |
|
|
773 oct_mach_info::float_format fmt) |
|
|
774 { |
|
|
775 bool success = true; |
|
|
776 FOUR_BYTE_INT len; |
|
|
777 if (! is.read (X_CAST (char *, &len), 4)) |
|
|
778 return false; |
|
|
779 if (swap) |
|
|
780 swap_4_bytes (X_CAST (char *, &len)); |
|
|
781 |
|
|
782 if (len > 0) |
|
|
783 { |
|
|
784 Octave_map m (map); |
|
|
785 |
|
|
786 for (int j = 0; j < len; j++) |
|
|
787 { |
|
|
788 octave_value t2; |
|
|
789 bool dummy; |
|
|
790 std::string doc; |
|
|
791 |
|
|
792 // recurse to read cell elements |
|
|
793 std::string nm = read_binary_data (is, swap, fmt, std::string (), |
|
|
794 dummy, t2, doc); |
|
|
795 |
|
|
796 if (!is) |
|
|
797 break; |
|
|
798 |
|
|
799 m.assign (nm, t2); |
|
|
800 } |
|
|
801 |
|
|
802 if (is) |
|
|
803 map = m; |
|
|
804 else |
|
|
805 { |
|
|
806 error ("load: failed to load structure"); |
|
|
807 success = false; |
|
|
808 } |
|
|
809 } |
|
|
810 else if (len == 0 ) |
|
|
811 map = Octave_map (); |
|
|
812 else |
|
|
813 panic_impossible (); |
|
|
814 |
|
|
815 return success; |
|
|
816 } |
|
|
817 |
|
|
818 #if defined (HAVE_HDF5) |
|
|
819 bool |
|
|
820 octave_struct::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
|
|
821 { |
|
|
822 hid_t data_hid = -1; |
|
|
823 |
|
|
824 data_hid = H5Gcreate (loc_id, name, 0); |
|
|
825 if (data_hid < 0) return false; |
|
|
826 |
|
|
827 // recursively add each element of the structure to this group |
|
|
828 Octave_map m = map_value (); |
|
|
829 Octave_map::iterator i = m.begin (); |
|
|
830 while (i != m.end ()) |
|
|
831 { |
|
|
832 Cell val = map.contents (i); |
|
|
833 octave_value tmp = (map.numel () == 1) ? val(0) : |
|
|
834 octave_value (val, true); |
|
|
835 |
|
|
836 bool retval2 = add_hdf5_data (data_hid, tmp, m.key (i), "", false, |
|
|
837 save_as_floats); |
|
|
838 |
|
|
839 if (! retval2) |
|
|
840 break; |
|
|
841 |
|
|
842 i++; |
|
|
843 } |
|
|
844 |
|
|
845 H5Gclose (data_hid); |
|
|
846 return true; |
|
|
847 } |
|
|
848 |
|
|
849 bool |
|
|
850 octave_struct::load_hdf5 (hid_t loc_id, const char *name, |
|
|
851 bool have_h5giterate_bug) |
|
|
852 { |
|
|
853 bool retval = false; |
|
|
854 |
|
|
855 hdf5_callback_data dsub; |
|
|
856 |
|
|
857 herr_t retval2; |
|
|
858 Octave_map m; |
|
|
859 int current_item = 0; |
|
4696
|
860 #ifdef HAVE_H5GGET_NUM_OBJS |
|
|
861 hsize_t num_obj = 0; |
|
|
862 H5Gget_num_objs (loc_id, &num_obj); |
|
|
863 |
|
|
864 while (current_item < static_cast<int> (num_obj) |
|
|
865 && (retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
866 hdf5_read_next_data, &dsub)) > 0) |
|
|
867 #else |
|
4687
|
868 while ((retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
869 hdf5_read_next_data, &dsub)) > 0) |
|
4696
|
870 #endif |
|
4687
|
871 { |
|
|
872 m.assign (dsub.name, dsub.tc); |
|
|
873 |
|
|
874 if (have_h5giterate_bug) |
|
|
875 current_item++; // H5Giterate returned the last index processed |
|
|
876 } |
|
|
877 |
|
|
878 if (retval2 >= 0) |
|
|
879 { |
|
|
880 map = m; |
|
|
881 retval = true; |
|
|
882 } |
|
|
883 |
|
|
884 return retval; |
|
|
885 } |
|
4750
|
886 |
|
|
887 // Check that the dimensions of the input arguments are correct. |
|
|
888 |
|
|
889 static bool |
|
|
890 cell2struct_check_args (const dim_vector& c_dv, const dim_vector& f_dv, |
|
|
891 bool is_cell, int dim) |
|
|
892 { |
|
4751
|
893 bool retval = true; |
|
4750
|
894 |
|
|
895 if (dim >= 0 && dim < c_dv.length ()) |
|
|
896 { |
|
|
897 if (is_cell) |
|
|
898 { |
|
4752
|
899 if (f_dv.numel () != c_dv(dim)) |
|
4750
|
900 { |
|
4751
|
901 error ("cell2struct: numel (FIELD) != size (CELL, DIM)"); |
|
4750
|
902 |
|
|
903 retval = false; |
|
|
904 } |
|
|
905 } |
|
|
906 else |
|
|
907 { |
|
|
908 if (f_dv.length () > 2) |
|
|
909 { |
|
4751
|
910 error ("cell2struct: field array must be a 2-d matrix"); |
|
4750
|
911 |
|
|
912 retval = false; |
|
|
913 } |
|
|
914 else if (f_dv(0) != c_dv(dim)) |
|
|
915 { |
|
4751
|
916 error ("cell2struct: size (FIELD, 1) != length (C, DIM)"); |
|
4750
|
917 |
|
|
918 retval = false; |
|
|
919 } |
|
|
920 } |
|
|
921 } |
|
|
922 else |
|
|
923 { |
|
|
924 error ("cell2struct: DIM out of range"); |
|
|
925 |
|
|
926 retval = false; |
|
|
927 } |
|
|
928 |
|
|
929 return retval; |
|
|
930 } |
|
|
931 |
|
|
932 static void |
|
|
933 cell2struct_construct_idx (Array<int>& ra_idx1, const Array<int>& ra_idx2, |
|
|
934 int dim, int fill_value) |
|
|
935 { |
|
|
936 int iidx = 0; |
|
|
937 |
|
|
938 for (int idx = 0; idx < ra_idx1.length (); idx++) |
|
|
939 { |
|
|
940 if (idx == dim) |
|
|
941 ra_idx1.elem (idx) = fill_value; |
|
|
942 else |
|
|
943 ra_idx1.elem (idx) = ra_idx2(iidx++); |
|
|
944 } |
|
|
945 } |
|
|
946 |
|
|
947 DEFUN (cell2struct, args, , |
|
|
948 "-*- texinfo -*-\n\ |
|
|
949 @deftypefn {Built-in Function} {} cell2struct (@var{CELL}, @var{FIELDS}, @var{DIM})\n\ |
|
|
950 Convert @var{CELL} to a structure. The number of fields in @var{FIELDS}\n\ |
|
|
951 must match the number of elements in @var{CELL} along dimension @var{DIM},\n\ |
|
|
952 that is @code{numel (@var{FIELDS}) == size (@var{CELL}, @var{DIM})}.\n\ |
|
|
953 \n\ |
|
|
954 @example\n\ |
|
|
955 @group\n\ |
|
|
956 A = cell2struct(@{'Peter', 'Hannah', 'Robert'; 185, 170, 168@}, @{'Name','Height'@}, 1);\n\ |
|
|
957 A(1)\n\ |
|
|
958 @result{} ans =\n\ |
|
4780
|
959 @{\n\ |
|
|
960 Height = 185\n\ |
|
|
961 Name = Peter\n\ |
|
|
962 @}\n\ |
|
4750
|
963 \n\ |
|
|
964 @end group\n\ |
|
|
965 @end example\n\ |
|
|
966 @end deftypefn") |
|
|
967 { |
|
|
968 octave_value retval; |
|
|
969 |
|
4751
|
970 if (args.length () == 3) |
|
4750
|
971 { |
|
4751
|
972 Cell c = args(0).cell_value (); |
|
4750
|
973 |
|
4751
|
974 if (! error_state) |
|
4750
|
975 { |
|
4751
|
976 octave_value field = args(1); |
|
4750
|
977 |
|
4751
|
978 // Field is either cell or character matrix. |
|
4750
|
979 |
|
4752
|
980 // XXX FIXME XX -- this could be simplified if we had |
|
|
981 // cellstr and iscellstr functions available. |
|
|
982 |
|
4751
|
983 bool field_is_cell = field.is_cell (); |
|
4750
|
984 |
|
4751
|
985 Cell field_cell; |
|
|
986 charMatrix field_char; |
|
4750
|
987 |
|
|
988 if (field_is_cell) |
|
4751
|
989 field_cell = field.cell_value (); |
|
|
990 else |
|
|
991 field_char = field.char_matrix_value (); |
|
|
992 |
|
|
993 if (! error_state) |
|
4750
|
994 { |
|
4751
|
995 // Retrieve the dimension value. |
|
|
996 |
|
|
997 // XXX FIX ME XXX -- int_value () should print out the |
|
|
998 // conversions it does to be Matlab compatible. |
|
|
999 |
|
|
1000 int dim = args(2).int_value () - 1; |
|
|
1001 |
|
|
1002 if (! error_state) |
|
|
1003 { |
|
|
1004 dim_vector c_dv = c.dims (); |
|
|
1005 dim_vector field_dv = field.dims (); |
|
|
1006 |
|
|
1007 if (cell2struct_check_args (c_dv, field_dv, field_is_cell, |
|
|
1008 dim)) |
|
|
1009 { |
|
|
1010 int c_dv_length = c_dv.length (); |
|
|
1011 |
|
|
1012 // Dimension vector for the Cell arrays to be |
|
|
1013 // put into the structure. |
|
|
1014 |
|
|
1015 dim_vector value_dv; |
|
|
1016 |
|
|
1017 // Initialize c_value_dv. |
|
4750
|
1018 |
|
4751
|
1019 if (c_dv_length == 2) |
|
|
1020 value_dv = dim_vector (1, 1); |
|
|
1021 else |
|
|
1022 value_dv.resize (c_dv_length - 1); |
|
|
1023 |
|
|
1024 int idx_tmp = 0; |
|
|
1025 |
|
|
1026 for (int i = 0; i < c_dv_length; i++) |
|
|
1027 { |
|
|
1028 if (i != dim) |
|
|
1029 value_dv.elem (idx_tmp++) = c_dv.elem (i); |
|
|
1030 } |
|
|
1031 |
|
|
1032 // All initializing is done, we can start moving |
|
|
1033 // values. |
|
|
1034 |
|
|
1035 Octave_map map; |
|
|
1036 |
|
|
1037 // If field is a cell array then we use all |
|
|
1038 // elements in array, on the other hand when |
|
|
1039 // field is a character array the number of |
|
|
1040 // elements is equals the number of rows. |
|
|
1041 |
|
|
1042 int field_numel |
|
|
1043 = field_is_cell ? field_dv.numel (): field_dv(0); |
|
|
1044 |
|
|
1045 // For matlab compatibility. |
|
|
1046 |
|
|
1047 if (field_numel == 0) |
|
|
1048 map.reshape (dim_vector (0, 1)); |
|
4750
|
1049 |
|
4751
|
1050 for (int i = 0; i < field_numel; i++) |
|
|
1051 { |
|
|
1052 // Construct cell array which goes into the |
|
|
1053 // structure together with the appropriate |
|
|
1054 // field name. |
|
|
1055 |
|
|
1056 Cell c_value (value_dv); |
|
|
1057 |
|
|
1058 Array<int> value_idx (value_dv.length (), 0); |
|
|
1059 Array<int> c_idx (c_dv_length, 0); |
|
|
1060 |
|
|
1061 for (int j = 0; j < value_dv.numel (); j++) |
|
|
1062 { |
|
|
1063 // Need to do this to construct the |
|
|
1064 // appropriate idx for getting elements |
|
|
1065 // from the original cell array. |
|
|
1066 |
|
|
1067 cell2struct_construct_idx (c_idx, value_idx, |
|
|
1068 dim, i); |
|
|
1069 |
|
|
1070 c_value.elem (value_idx) = c.elem (c_idx); |
|
|
1071 |
|
|
1072 increment_index (value_idx, value_dv); |
|
|
1073 } |
|
|
1074 |
|
|
1075 std::string field_str; |
|
4750
|
1076 |
|
4751
|
1077 if (field_is_cell) |
|
|
1078 { |
|
|
1079 // Matlab retrieves the field values |
|
|
1080 // column by column. |
|
|
1081 |
|
|
1082 octave_value field_tmp = field_cell.elem (i); |
|
|
1083 |
|
|
1084 field_str = field_tmp.string_value (); |
|
|
1085 |
|
|
1086 if (error_state) |
|
|
1087 { |
|
|
1088 error ("cell2struct: fields have to be of type string"); |
|
|
1089 break; |
|
|
1090 } |
|
|
1091 } |
|
|
1092 else |
|
|
1093 { |
|
|
1094 field_str = field_char.row_as_string (i); |
|
|
1095 |
|
|
1096 if (error_state) |
|
|
1097 return retval; |
|
|
1098 } |
|
|
1099 |
|
|
1100 map.reshape (value_dv); |
|
|
1101 |
|
|
1102 map.assign (field_str, c_value); |
|
|
1103 } |
|
|
1104 |
|
|
1105 if (! error_state) |
|
|
1106 retval = map; |
|
|
1107 } |
|
4750
|
1108 } |
|
4751
|
1109 else |
|
|
1110 error ("cell2struct: expecting third argument to be an integer"); |
|
4750
|
1111 } |
|
|
1112 else |
|
4751
|
1113 error ("cell2struct: expecting second argument to be a cell or character array"); |
|
4750
|
1114 } |
|
4751
|
1115 else |
|
|
1116 error ("cell2struct: expecting first argument to be a cell array"); |
|
4750
|
1117 } |
|
4751
|
1118 else |
|
|
1119 print_usage ("cell2struct"); |
|
4750
|
1120 |
|
|
1121 return retval; |
|
|
1122 } |
|
|
1123 |
|
4687
|
1124 #endif |
|
|
1125 |
|
2376
|
1126 /* |
|
|
1127 ;;; Local Variables: *** |
|
|
1128 ;;; mode: C++ *** |
|
|
1129 ;;; End: *** |
|
|
1130 */ |
