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1 /* |
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2 |
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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 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 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, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <iostream> |
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28 |
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29 #include "Cell.h" |
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30 #include "defun.h" |
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31 #include "error.h" |
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32 #include "gripes.h" |
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33 #include "oct-lvalue.h" |
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34 #include "ov-list.h" |
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35 #include "ov-struct.h" |
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36 #include "unwind-prot.h" |
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37 #include "utils.h" |
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38 #include "variables.h" |
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39 |
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40 #include "Array-util.h" |
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41 |
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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 #include "pr-output.h" |
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48 |
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49 DEFINE_OCTAVE_ALLOCATOR(octave_struct); |
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50 |
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51 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA(octave_struct, "struct", "struct"); |
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52 |
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53 Cell |
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54 octave_struct::dotref (const octave_value_list& idx) |
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2962
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55 { |
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56 Cell retval; |
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57 |
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58 assert (idx.length () == 1); |
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59 |
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60 std::string nm = idx(0).string_value (); |
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61 |
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62 Octave_map::const_iterator p = map.seek (nm); |
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63 |
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64 if (p != map.end ()) |
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65 retval = map.contents (p); |
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66 else |
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67 error ("structure has no member `%s'", nm.c_str ()); |
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68 |
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69 return retval; |
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70 } |
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71 |
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72 #if 0 |
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73 static void |
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74 gripe_invalid_index (void) |
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75 { |
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76 error ("invalid index for structure array"); |
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77 } |
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78 #endif |
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79 |
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80 static void |
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81 gripe_invalid_index_for_assignment (void) |
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82 { |
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83 error ("invalid index for structure array assignment"); |
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84 } |
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85 |
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86 static void |
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87 gripe_invalid_index_type (const std::string& nm, char t) |
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88 { |
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89 error ("%s cannot be indexed with %c", nm.c_str (), t); |
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90 } |
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91 |
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92 static void |
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93 gripe_failed_assignment (void) |
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94 { |
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95 error ("assignment to structure element failed"); |
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96 } |
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97 |
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98 octave_value_list |
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99 octave_struct::subsref (const std::string& type, |
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100 const std::list<octave_value_list>& idx, |
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101 int nargout) |
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102 { |
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103 octave_value_list retval; |
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104 |
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105 int skip = 1; |
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106 |
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107 switch (type[0]) |
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108 { |
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109 case '(': |
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110 { |
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111 if (type.length () > 1 && type[1] == '.') |
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112 { |
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113 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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114 octave_value_list key_idx = *++p; |
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115 |
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116 Cell tmp = dotref (key_idx); |
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117 |
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118 if (! error_state) |
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119 { |
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120 Cell t = tmp.index (idx.front ()); |
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121 |
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122 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
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123 |
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124 // We handled two index elements, so tell |
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125 // next_subsref to skip both of them. |
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126 |
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127 skip++; |
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128 } |
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129 } |
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130 else |
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131 retval(0) = map.index (idx.front ()); |
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132 } |
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133 break; |
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134 |
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135 case '.': |
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136 { |
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137 if (map.numel() > 0) |
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138 { |
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139 Cell t = dotref (idx.front ()); |
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140 |
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141 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
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142 } |
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143 } |
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144 break; |
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145 |
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146 case '{': |
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147 gripe_invalid_index_type (type_name (), type[0]); |
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148 break; |
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149 |
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150 default: |
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151 panic_impossible (); |
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152 } |
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153 |
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154 // FIXME -- perhaps there should be an |
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155 // octave_value_list::next_subsref member function? See also |
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156 // octave_user_function::subsref. |
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157 |
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158 if (idx.size () > 1) |
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159 retval = retval(0).next_subsref (nargout, type, idx, skip); |
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160 |
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161 return retval; |
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162 } |
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163 |
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164 octave_value |
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165 octave_struct::numeric_conv (const Cell& val, |
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166 const std::string& type) |
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167 { |
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168 octave_value retval; |
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169 |
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170 if (val.length () == 1) |
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171 { |
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172 retval = val(0); |
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173 |
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174 if (type.length () > 0 && type[0] == '.' && ! retval.is_map ()) |
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175 retval = Octave_map (); |
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176 } |
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177 else |
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178 gripe_invalid_index_for_assignment (); |
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179 |
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180 return retval; |
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181 } |
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182 |
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183 octave_value |
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184 octave_struct::subsasgn (const std::string& type, |
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185 const std::list<octave_value_list>& idx, |
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186 const octave_value& rhs) |
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187 { |
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188 octave_value retval; |
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189 |
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190 int n = type.length (); |
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191 |
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192 octave_value t_rhs = rhs; |
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193 |
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194 if (n > 1 && ! (type.length () == 2 && type[0] == '(' && type[1] == '.')) |
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195 { |
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196 switch (type[0]) |
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197 { |
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198 case '(': |
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199 { |
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200 if (type.length () > 1 && type[1] == '.') |
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201 { |
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202 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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203 octave_value_list t_idx = *p; |
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204 |
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205 octave_value_list key_idx = *++p; |
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206 |
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207 assert (key_idx.length () == 1); |
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208 |
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209 std::string key = key_idx(0).string_value (); |
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210 |
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211 octave_value u; |
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212 |
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213 if (! map.contains (key)) |
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214 u = octave_value::empty_conv (type.substr (2), rhs); |
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215 else |
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216 { |
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217 Cell map_val = map.contents (key); |
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218 |
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219 Cell map_elt = map_val.index (idx.front (), true); |
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220 |
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221 u = numeric_conv (map_elt, type.substr (2)); |
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222 } |
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223 |
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224 if (! error_state) |
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225 { |
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226 std::list<octave_value_list> next_idx (idx); |
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227 |
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228 // We handled two index elements, so subsasgn to |
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229 // needs to skip both of them. |
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230 |
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231 next_idx.erase (next_idx.begin ()); |
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232 next_idx.erase (next_idx.begin ()); |
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233 |
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234 u.make_unique (); |
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235 |
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236 t_rhs = u.subsasgn (type.substr (2), next_idx, rhs); |
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237 } |
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238 } |
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239 else |
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240 gripe_invalid_index_for_assignment (); |
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241 } |
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242 break; |
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243 |
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244 case '.': |
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245 { |
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246 octave_value_list key_idx = idx.front (); |
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247 |
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248 assert (key_idx.length () == 1); |
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249 |
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250 std::string key = key_idx(0).string_value (); |
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251 |
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252 octave_value u; |
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253 |
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254 if (! map.contains (key)) |
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255 u = octave_value::empty_conv (type.substr (1), rhs); |
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256 else |
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257 { |
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258 Cell map_val = map.contents (key); |
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259 |
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260 u = numeric_conv (map_val, type.substr (1)); |
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261 } |
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262 |
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263 if (! error_state) |
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264 { |
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4219
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265 std::list<octave_value_list> next_idx (idx); |
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266 |
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267 next_idx.erase (next_idx.begin ()); |
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3933
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268 |
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4059
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269 u.make_unique (); |
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270 |
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271 t_rhs = u.subsasgn (type.substr (1), next_idx, rhs); |
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272 } |
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273 } |
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274 break; |
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275 |
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276 case '{': |
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277 gripe_invalid_index_type (type_name (), type[0]); |
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278 break; |
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279 |
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280 default: |
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281 panic_impossible (); |
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282 } |
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283 } |
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284 |
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285 if (! error_state) |
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286 { |
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287 switch (type[0]) |
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288 { |
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289 case '(': |
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290 { |
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291 if (n > 1 && type[1] == '.') |
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292 { |
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4219
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293 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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294 octave_value_list key_idx = *++p; |
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295 |
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296 assert (key_idx.length () == 1); |
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297 |
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298 std::string key = key_idx(0).string_value (); |
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299 |
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300 if (! error_state) |
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301 { |
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302 map.assign (idx.front (), key, t_rhs); |
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303 |
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4513
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304 if (! error_state) |
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305 { |
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306 count++; |
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307 retval = octave_value (this); |
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308 } |
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3933
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309 else |
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4513
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310 gripe_failed_assignment (); |
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3933
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311 } |
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312 else |
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313 gripe_failed_assignment (); |
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314 } |
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315 else |
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4197
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316 { |
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317 if (t_rhs.is_map()) |
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4197
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318 { |
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5592
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319 Octave_map rhs_map = t_rhs.map_value (); |
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4197
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320 |
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321 if (! error_state) |
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5592
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322 { |
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323 map.assign (idx.front (), rhs_map); |
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324 |
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325 if (! error_state) |
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5759
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326 { |
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327 count++; |
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328 retval = octave_value (this); |
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329 } |
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5592
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330 else |
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331 gripe_failed_assignment (); |
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332 } |
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4197
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333 else |
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5592
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334 error ("invalid structure assignment"); |
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4197
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335 } |
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4513
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336 else |
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5592
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337 { |
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338 if (t_rhs.is_empty()) |
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339 { |
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340 map.maybe_delete_elements (idx.front()); |
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341 |
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342 if (! error_state) |
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5759
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343 { |
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344 count++; |
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345 retval = octave_value (this); |
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346 } |
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5592
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347 else |
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348 gripe_failed_assignment (); |
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349 } |
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350 else |
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351 error ("invalid structure assignment"); |
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352 } |
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4197
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353 } |
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3933
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354 } |
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355 break; |
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356 |
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357 case '.': |
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358 { |
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359 octave_value_list key_idx = idx.front (); |
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360 |
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361 assert (key_idx.length () == 1); |
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362 |
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363 std::string key = key_idx(0).string_value (); |
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364 |
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6833
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365 if (t_rhs.is_cs_list ()) |
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366 { |
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367 Cell tmp_cell = Cell (t_rhs.list_value ()); |
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368 |
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369 // FIXME -- shouldn't care if the dimensions of the |
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370 // RHS don't match the dimensions of the subscriped |
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371 // LHS. |
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372 |
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373 map.assign (key, tmp_cell); |
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374 } |
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375 else |
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376 map.assign (key, t_rhs); |
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3933
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377 |
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378 if (! error_state) |
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5759
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379 { |
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380 count++; |
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381 retval = octave_value (this); |
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382 } |
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3933
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383 else |
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384 gripe_failed_assignment (); |
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385 } |
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386 break; |
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387 |
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388 case '{': |
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389 gripe_invalid_index_type (type_name (), type[0]); |
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390 break; |
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391 |
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392 default: |
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393 panic_impossible (); |
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394 } |
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395 } |
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396 else |
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397 gripe_failed_assignment (); |
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398 |
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399 return retval; |
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2376
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400 } |
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401 |
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4791
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402 size_t |
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403 octave_struct::byte_size (void) const |
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404 { |
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405 // Neglect the size of the fieldnames. |
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406 |
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407 size_t retval = 0; |
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408 |
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409 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) |
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410 { |
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411 std::string key = map.key (p); |
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412 |
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413 octave_value val = octave_value (map.contents (p)); |
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414 |
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415 retval += val.byte_size (); |
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416 } |
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417 |
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418 return retval; |
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419 } |
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420 |
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2376
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421 void |
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3523
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422 octave_struct::print (std::ostream& os, bool) const |
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2901
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423 { |
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424 print_raw (os); |
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425 } |
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426 |
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427 void |
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3523
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428 octave_struct::print_raw (std::ostream& os, bool) const |
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2376
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429 { |
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2985
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430 unwind_protect::begin_frame ("octave_struct_print"); |
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2376
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431 |
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432 unwind_protect_int (Vstruct_levels_to_print); |
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433 |
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3961
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434 if (Vstruct_levels_to_print >= 0) |
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2376
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435 { |
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5598
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436 bool print_keys_only = (Vstruct_levels_to_print == 0 |
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437 || map.numel () == 0); |
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3961
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438 |
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439 Vstruct_levels_to_print--; |
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440 |
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2901
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441 indent (os); |
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442 os << "{"; |
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443 newline (os); |
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2376
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444 |
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2901
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445 increment_indent_level (); |
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2376
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446 |
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5598
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447 octave_idx_type n = map.numel (); |
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3932
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448 |
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5598
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449 if (n == 0 || (n > 1 && print_keys_only)) |
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4604
|
450 { |
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451 indent (os); |
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452 dim_vector dv = dims (); |
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453 os << dv.str () << " struct array containing the fields:"; |
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454 newline (os); |
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455 newline (os); |
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456 |
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457 increment_indent_level (); |
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458 } |
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459 |
|
5880
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460 string_vector key_list = map.keys (); |
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461 |
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462 for (octave_idx_type i = 0; i < key_list.length (); i++) |
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2376
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463 { |
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5880
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464 std::string key = key_list[i]; |
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|
465 |
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466 Cell val = map.contents (key); |
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2376
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467 |
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4499
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468 octave_value tmp = (n == 1) ? val(0) : octave_value (val, true); |
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3961
|
469 |
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470 if (print_keys_only) |
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3932
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471 { |
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3961
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472 indent (os); |
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4604
|
473 os << key; |
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|
474 if (n == 1) |
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475 { |
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476 dim_vector dv = tmp.dims (); |
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|
477 os << ": " << dv.str () << " " << tmp.type_name (); |
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478 } |
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3961
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479 newline (os); |
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3932
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480 } |
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3961
|
481 else |
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4121
|
482 tmp.print_with_name (os, key); |
|
2376
|
483 } |
|
|
484 |
|
5598
|
485 if (n == 0 || (n > 1 && print_keys_only)) |
|
4604
|
486 decrement_indent_level (); |
|
|
487 |
|
2901
|
488 decrement_indent_level (); |
|
2376
|
489 |
|
2901
|
490 indent (os); |
|
|
491 os << "}"; |
|
|
492 newline (os); |
|
2376
|
493 } |
|
|
494 else |
|
2901
|
495 { |
|
3961
|
496 indent (os); |
|
|
497 os << "<structure>"; |
|
2901
|
498 newline (os); |
|
|
499 } |
|
2376
|
500 |
|
2985
|
501 unwind_protect::run_frame ("octave_struct_print"); |
|
2376
|
502 } |
|
|
503 |
|
2901
|
504 bool |
|
3523
|
505 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
|
2901
|
506 { |
|
3961
|
507 bool retval = false; |
|
|
508 |
|
2901
|
509 indent (os); |
|
3961
|
510 |
|
|
511 if (Vstruct_levels_to_print < 0) |
|
|
512 os << name << " = "; |
|
|
513 else |
|
|
514 { |
|
|
515 os << name << " ="; |
|
|
516 newline (os); |
|
|
517 retval = true; |
|
|
518 } |
|
|
519 |
|
|
520 return retval; |
|
2901
|
521 } |
|
|
522 |
|
4744
|
523 static bool |
|
|
524 scalar (const dim_vector& dims) |
|
|
525 { |
|
|
526 return dims.length () == 2 && dims (0) == 1 && dims (1) == 1; |
|
|
527 } |
|
|
528 |
|
|
529 /* |
|
|
530 %!shared x |
|
|
531 %! x(1).a=1; x(2).a=2; x(1).b=3; x(2).b=3; |
|
|
532 %!assert(struct('a',1,'b',3),x(1)) |
|
5592
|
533 %!assert(isempty(x([]))) |
|
|
534 %!assert(isempty(struct('a',{},'b',{}))) |
|
4744
|
535 %!assert(struct('a',{1,2},'b',{3,3}),x) |
|
|
536 %!assert(struct('a',{1,2},'b',3),x) |
|
|
537 %!assert(struct('a',{1,2},'b',{3}),x) |
|
|
538 %!assert(struct('b',3,'a',{1,2}),x) |
|
|
539 %!assert(struct('b',{3},'a',{1,2}),x) |
|
|
540 %!test x=struct([]); |
|
|
541 %!assert(size(x),[0,0]); |
|
|
542 %!assert(isstruct(x)); |
|
|
543 %!assert(isempty(fieldnames(x))); |
|
|
544 %!fail("struct('a',{1,2},'b',{1,2,3})","dimensions of parameter 2 do not match those of parameter 4") |
|
5582
|
545 %!fail("struct(1,2,3,4)","struct expects alternating \"field\", VALUE pairs"); |
|
|
546 %!fail("struct('1',2,'3')","struct expects alternating \"field\", VALUE pairs"); |
|
4744
|
547 */ |
|
|
548 |
|
|
549 DEFUN (struct, args, , |
|
|
550 "-*- texinfo -*-\n\ |
|
|
551 @deftypefn {Built-in Function} {} struct (\"field\", @var{value}, \"field\", @var{value}, @dots{})\n\ |
|
|
552 \n\ |
|
|
553 Create a structure and initialize its value.\n\ |
|
|
554 \n\ |
|
|
555 If the values are cell arrays, create a structure array and initialize\n\ |
|
|
556 its values. The dimensions of each cell array of values must match.\n\ |
|
|
557 Singleton cells and non-cell values are repeated so that they fill\n\ |
|
|
558 the entire array. If the cells are empty, create an empty structure\n\ |
|
4911
|
559 array with the specified field names.\n\ |
|
|
560 @end deftypefn") |
|
4744
|
561 { |
|
6946
|
562 octave_value retval; |
|
4744
|
563 |
|
|
564 int nargin = args.length (); |
|
|
565 |
|
5444
|
566 // struct ([]) returns an empty struct. |
|
|
567 |
|
|
568 // struct (empty_matrix) returns an empty struct with the same |
|
|
569 // dimensions as the empty matrix. |
|
|
570 |
|
|
571 // Note that struct () creates a 1x1 struct with no fields for |
|
|
572 // compatibility with Matlab. |
|
4744
|
573 |
|
6946
|
574 if ((nargin == 1 || nargin == 2) |
|
|
575 && args(0).is_empty () && args(0).is_real_matrix ()) |
|
|
576 { |
|
|
577 Cell fields; |
|
|
578 |
|
|
579 if (nargin == 2) |
|
|
580 { |
|
|
581 if (args(1).is_cellstr ()) |
|
|
582 retval = Octave_map (args(0).dims (), args(1).cell_value ()); |
|
|
583 else |
|
|
584 error ("struct: expecting cell array of field names as second argument"); |
|
|
585 } |
|
|
586 else |
|
|
587 retval = Octave_map (args(0).dims ()); |
|
|
588 |
|
|
589 return retval; |
|
|
590 } |
|
4744
|
591 |
|
|
592 // Check for "field", VALUE pairs. |
|
|
593 |
|
|
594 for (int i = 0; i < nargin; i += 2) |
|
|
595 { |
|
|
596 if (! args(i).is_string () || i + 1 >= nargin) |
|
|
597 { |
|
|
598 error ("struct expects alternating \"field\", VALUE pairs"); |
|
|
599 return retval; |
|
|
600 } |
|
|
601 } |
|
|
602 |
|
|
603 // Check that the dimensions of the values correspond. |
|
|
604 |
|
|
605 dim_vector dims (1, 1); |
|
|
606 |
|
|
607 int first_dimensioned_value = 0; |
|
|
608 |
|
|
609 for (int i = 1; i < nargin; i += 2) |
|
|
610 { |
|
|
611 if (args(i).is_cell ()) |
|
|
612 { |
|
|
613 dim_vector argdims (args(i).dims ()); |
|
|
614 |
|
|
615 if (! scalar (argdims)) |
|
|
616 { |
|
|
617 if (! first_dimensioned_value) |
|
|
618 { |
|
|
619 dims = argdims; |
|
|
620 first_dimensioned_value = i + 1; |
|
|
621 } |
|
|
622 else if (dims != argdims) |
|
|
623 { |
|
|
624 error ("struct: dimensions of parameter %d do not match those of parameter %d", |
|
|
625 first_dimensioned_value, i+1); |
|
|
626 return retval; |
|
|
627 } |
|
|
628 } |
|
|
629 } |
|
|
630 } |
|
|
631 |
|
|
632 // Create the return value. |
|
|
633 |
|
|
634 Octave_map map (dims); |
|
|
635 |
|
|
636 for (int i = 0; i < nargin; i+= 2) |
|
|
637 { |
|
|
638 // Get key. |
|
|
639 |
|
|
640 std::string key (args(i).string_value ()); |
|
|
641 |
|
|
642 if (error_state) |
|
|
643 return retval; |
|
|
644 |
|
6811
|
645 if (! valid_identifier (key)) |
|
|
646 { |
|
|
647 error ("struct: invalid structure field name `%s'", key.c_str ()); |
|
|
648 return retval; |
|
|
649 } |
|
|
650 |
|
4744
|
651 // Value may be v, { v }, or { v1, v2, ... } |
|
|
652 // In the first two cases, we need to create a cell array of |
|
|
653 // the appropriate dimensions filled with v. In the last case, |
|
|
654 // the cell array has already been determined to be of the |
|
|
655 // correct dimensions. |
|
|
656 |
|
|
657 if (args(i+1).is_cell ()) |
|
|
658 { |
|
|
659 const Cell c (args(i+1).cell_value ()); |
|
|
660 |
|
|
661 if (error_state) |
|
|
662 return retval; |
|
|
663 |
|
|
664 if (scalar (c.dims ())) |
|
|
665 map.assign (key, Cell (dims, c(0))); |
|
|
666 else |
|
|
667 map.assign (key, c); |
|
|
668 } |
|
|
669 else |
|
|
670 map.assign (key, Cell (dims, args(i+1))); |
|
|
671 |
|
|
672 if (error_state) |
|
|
673 return retval; |
|
|
674 } |
|
6946
|
675 |
|
4744
|
676 return octave_value (map); |
|
|
677 } |
|
|
678 |
|
4358
|
679 DEFUN (isstruct, args, , |
|
|
680 "-*- texinfo -*-\n\ |
|
|
681 @deftypefn {Built-in Function} {} isstruct (@var{expr})\n\ |
|
|
682 Return 1 if the value of the expression @var{expr} is a structure.\n\ |
|
|
683 @end deftypefn") |
|
|
684 { |
|
|
685 octave_value retval; |
|
|
686 |
|
|
687 if (args.length () == 1) |
|
|
688 retval = args(0).is_map (); |
|
|
689 else |
|
5823
|
690 print_usage (); |
|
4358
|
691 |
|
|
692 return retval; |
|
|
693 } |
|
|
694 |
|
|
695 DEFUN (fieldnames, args, , |
|
|
696 "-*- texinfo -*-\n\ |
|
|
697 @deftypefn {Built-in Function} {} fieldnames (@var{struct})\n\ |
|
|
698 Return a cell array of strings naming the elements of the structure\n\ |
|
|
699 @var{struct}. It is an error to call @code{fieldnames} with an\n\ |
|
|
700 argument that is not a structure.\n\ |
|
|
701 @end deftypefn") |
|
|
702 { |
|
|
703 octave_value retval; |
|
|
704 |
|
|
705 int nargin = args.length (); |
|
|
706 |
|
|
707 if (nargin == 1) |
|
|
708 { |
|
|
709 if (args(0).is_map ()) |
|
|
710 { |
|
|
711 Octave_map m = args(0).map_value (); |
|
4744
|
712 string_vector keys = m.keys (); |
|
|
713 if (keys.length () == 0) |
|
|
714 retval = Cell (0, 1); |
|
|
715 else |
|
|
716 retval = Cell (m.keys ()); |
|
4358
|
717 } |
|
|
718 else |
|
|
719 gripe_wrong_type_arg ("fieldnames", args(0)); |
|
|
720 } |
|
|
721 else |
|
5823
|
722 print_usage (); |
|
4358
|
723 |
|
|
724 return retval; |
|
|
725 } |
|
|
726 |
|
|
727 DEFUN (isfield, args, , |
|
|
728 "-*- texinfo -*-\n\ |
|
|
729 @deftypefn {Built-in Function} {} isfield (@var{expr}, @var{name})\n\ |
|
|
730 Return true if the expression @var{expr} is a structure and it includes an\n\ |
|
|
731 element named @var{name}. The first argument must be a structure and\n\ |
|
|
732 the second must be a string.\n\ |
|
|
733 @end deftypefn") |
|
|
734 { |
|
|
735 octave_value retval; |
|
|
736 |
|
|
737 int nargin = args.length (); |
|
|
738 |
|
|
739 if (nargin == 2) |
|
|
740 { |
|
|
741 retval = false; |
|
|
742 |
|
5775
|
743 // FIXME -- should this work for all types that can do |
|
4358
|
744 // structure reference operations? |
|
|
745 |
|
|
746 if (args(0).is_map () && args(1).is_string ()) |
|
|
747 { |
|
|
748 std::string key = args(1).string_value (); |
|
|
749 |
|
|
750 Octave_map m = args(0).map_value (); |
|
|
751 |
|
|
752 retval = m.contains (key) != 0; |
|
|
753 } |
|
|
754 } |
|
|
755 else |
|
5823
|
756 print_usage (); |
|
4358
|
757 |
|
|
758 return retval; |
|
|
759 } |
|
|
760 |
|
4750
|
761 // Check that the dimensions of the input arguments are correct. |
|
|
762 |
|
|
763 static bool |
|
|
764 cell2struct_check_args (const dim_vector& c_dv, const dim_vector& f_dv, |
|
|
765 bool is_cell, int dim) |
|
|
766 { |
|
4751
|
767 bool retval = true; |
|
4750
|
768 |
|
|
769 if (dim >= 0 && dim < c_dv.length ()) |
|
|
770 { |
|
|
771 if (is_cell) |
|
|
772 { |
|
4752
|
773 if (f_dv.numel () != c_dv(dim)) |
|
4750
|
774 { |
|
4751
|
775 error ("cell2struct: numel (FIELD) != size (CELL, DIM)"); |
|
4750
|
776 |
|
|
777 retval = false; |
|
|
778 } |
|
|
779 } |
|
|
780 else |
|
|
781 { |
|
|
782 if (f_dv.length () > 2) |
|
|
783 { |
|
4751
|
784 error ("cell2struct: field array must be a 2-d matrix"); |
|
4750
|
785 |
|
|
786 retval = false; |
|
|
787 } |
|
|
788 else if (f_dv(0) != c_dv(dim)) |
|
|
789 { |
|
4751
|
790 error ("cell2struct: size (FIELD, 1) != length (C, DIM)"); |
|
4750
|
791 |
|
|
792 retval = false; |
|
|
793 } |
|
|
794 } |
|
|
795 } |
|
|
796 else |
|
|
797 { |
|
|
798 error ("cell2struct: DIM out of range"); |
|
|
799 |
|
|
800 retval = false; |
|
|
801 } |
|
|
802 |
|
|
803 return retval; |
|
|
804 } |
|
|
805 |
|
|
806 static void |
|
5275
|
807 cell2struct_construct_idx (Array<octave_idx_type>& ra_idx1, |
|
|
808 const Array<octave_idx_type>& ra_idx2, |
|
|
809 octave_idx_type dim, octave_idx_type fill_value) |
|
4750
|
810 { |
|
5275
|
811 octave_idx_type iidx = 0; |
|
4750
|
812 |
|
5275
|
813 for (octave_idx_type idx = 0; idx < ra_idx1.length (); idx++) |
|
4750
|
814 { |
|
|
815 if (idx == dim) |
|
|
816 ra_idx1.elem (idx) = fill_value; |
|
|
817 else |
|
|
818 ra_idx1.elem (idx) = ra_idx2(iidx++); |
|
|
819 } |
|
|
820 } |
|
|
821 |
|
|
822 DEFUN (cell2struct, args, , |
|
|
823 "-*- texinfo -*-\n\ |
|
4817
|
824 @deftypefn {Built-in Function} {} cell2struct (@var{cell}, @var{fields}, @var{dim})\n\ |
|
|
825 Convert @var{cell} to a structure. The number of fields in @var{fields}\n\ |
|
|
826 must match the number of elements in @var{cell} along dimension @var{dim},\n\ |
|
|
827 that is @code{numel (@var{fields}) == size (@var{cell}, @var{dim})}.\n\ |
|
4750
|
828 \n\ |
|
|
829 @example\n\ |
|
|
830 @group\n\ |
|
6519
|
831 A = cell2struct (@{'Peter', 'Hannah', 'Robert'; 185, 170, 168@},\n\ |
|
|
832 @{'Name','Height'@}, 1);\n\ |
|
4750
|
833 A(1)\n\ |
|
|
834 @result{} ans =\n\ |
|
4780
|
835 @{\n\ |
|
|
836 Height = 185\n\ |
|
|
837 Name = Peter\n\ |
|
|
838 @}\n\ |
|
4750
|
839 \n\ |
|
|
840 @end group\n\ |
|
|
841 @end example\n\ |
|
|
842 @end deftypefn") |
|
|
843 { |
|
|
844 octave_value retval; |
|
|
845 |
|
4751
|
846 if (args.length () == 3) |
|
4750
|
847 { |
|
4751
|
848 Cell c = args(0).cell_value (); |
|
4750
|
849 |
|
4751
|
850 if (! error_state) |
|
4750
|
851 { |
|
4751
|
852 octave_value field = args(1); |
|
4750
|
853 |
|
4751
|
854 // Field is either cell or character matrix. |
|
4750
|
855 |
|
5775
|
856 // FIXME -- this could be simplified if we had |
|
4752
|
857 // cellstr and iscellstr functions available. |
|
|
858 |
|
4751
|
859 bool field_is_cell = field.is_cell (); |
|
4750
|
860 |
|
4751
|
861 Cell field_cell; |
|
|
862 charMatrix field_char; |
|
4750
|
863 |
|
|
864 if (field_is_cell) |
|
4751
|
865 field_cell = field.cell_value (); |
|
|
866 else |
|
|
867 field_char = field.char_matrix_value (); |
|
|
868 |
|
|
869 if (! error_state) |
|
4750
|
870 { |
|
4751
|
871 // Retrieve the dimension value. |
|
|
872 |
|
5775
|
873 // FIXME -- int_value () should print out the |
|
4751
|
874 // conversions it does to be Matlab compatible. |
|
|
875 |
|
5275
|
876 octave_idx_type dim = args(2).int_value () - 1; |
|
4751
|
877 |
|
|
878 if (! error_state) |
|
|
879 { |
|
|
880 dim_vector c_dv = c.dims (); |
|
|
881 dim_vector field_dv = field.dims (); |
|
|
882 |
|
|
883 if (cell2struct_check_args (c_dv, field_dv, field_is_cell, |
|
|
884 dim)) |
|
|
885 { |
|
5275
|
886 octave_idx_type c_dv_length = c_dv.length (); |
|
4751
|
887 |
|
|
888 // Dimension vector for the Cell arrays to be |
|
|
889 // put into the structure. |
|
|
890 |
|
|
891 dim_vector value_dv; |
|
|
892 |
|
|
893 // Initialize c_value_dv. |
|
4750
|
894 |
|
4751
|
895 if (c_dv_length == 2) |
|
|
896 value_dv = dim_vector (1, 1); |
|
|
897 else |
|
|
898 value_dv.resize (c_dv_length - 1); |
|
|
899 |
|
5275
|
900 octave_idx_type idx_tmp = 0; |
|
4751
|
901 |
|
5275
|
902 for (octave_idx_type i = 0; i < c_dv_length; i++) |
|
4751
|
903 { |
|
|
904 if (i != dim) |
|
|
905 value_dv.elem (idx_tmp++) = c_dv.elem (i); |
|
|
906 } |
|
|
907 |
|
|
908 // All initializing is done, we can start moving |
|
|
909 // values. |
|
|
910 |
|
|
911 Octave_map map; |
|
|
912 |
|
|
913 // If field is a cell array then we use all |
|
|
914 // elements in array, on the other hand when |
|
|
915 // field is a character array the number of |
|
|
916 // elements is equals the number of rows. |
|
|
917 |
|
5275
|
918 octave_idx_type field_numel |
|
4751
|
919 = field_is_cell ? field_dv.numel (): field_dv(0); |
|
|
920 |
|
|
921 // For matlab compatibility. |
|
|
922 |
|
|
923 if (field_numel == 0) |
|
|
924 map.reshape (dim_vector (0, 1)); |
|
4750
|
925 |
|
5275
|
926 for (octave_idx_type i = 0; i < field_numel; i++) |
|
4751
|
927 { |
|
|
928 // Construct cell array which goes into the |
|
|
929 // structure together with the appropriate |
|
|
930 // field name. |
|
|
931 |
|
|
932 Cell c_value (value_dv); |
|
|
933 |
|
5275
|
934 Array<octave_idx_type> value_idx (value_dv.length (), 0); |
|
|
935 Array<octave_idx_type> c_idx (c_dv_length, 0); |
|
4751
|
936 |
|
5275
|
937 for (octave_idx_type j = 0; j < value_dv.numel (); j++) |
|
4751
|
938 { |
|
|
939 // Need to do this to construct the |
|
|
940 // appropriate idx for getting elements |
|
|
941 // from the original cell array. |
|
|
942 |
|
|
943 cell2struct_construct_idx (c_idx, value_idx, |
|
|
944 dim, i); |
|
|
945 |
|
|
946 c_value.elem (value_idx) = c.elem (c_idx); |
|
|
947 |
|
|
948 increment_index (value_idx, value_dv); |
|
|
949 } |
|
|
950 |
|
|
951 std::string field_str; |
|
4750
|
952 |
|
4751
|
953 if (field_is_cell) |
|
|
954 { |
|
|
955 // Matlab retrieves the field values |
|
|
956 // column by column. |
|
|
957 |
|
|
958 octave_value field_tmp = field_cell.elem (i); |
|
|
959 |
|
|
960 field_str = field_tmp.string_value (); |
|
|
961 |
|
|
962 if (error_state) |
|
|
963 { |
|
|
964 error ("cell2struct: fields have to be of type string"); |
|
|
965 break; |
|
|
966 } |
|
|
967 } |
|
|
968 else |
|
|
969 { |
|
|
970 field_str = field_char.row_as_string (i); |
|
|
971 |
|
|
972 if (error_state) |
|
|
973 return retval; |
|
|
974 } |
|
|
975 |
|
6811
|
976 if (! valid_identifier (field_str)) |
|
|
977 { |
|
|
978 error ("cell2struct: invalid field name `%s'", |
|
|
979 field_str.c_str ()); |
|
|
980 break; |
|
|
981 } |
|
|
982 |
|
4751
|
983 map.reshape (value_dv); |
|
|
984 |
|
|
985 map.assign (field_str, c_value); |
|
|
986 } |
|
|
987 |
|
|
988 if (! error_state) |
|
|
989 retval = map; |
|
|
990 } |
|
4750
|
991 } |
|
4751
|
992 else |
|
|
993 error ("cell2struct: expecting third argument to be an integer"); |
|
4750
|
994 } |
|
|
995 else |
|
4751
|
996 error ("cell2struct: expecting second argument to be a cell or character array"); |
|
4750
|
997 } |
|
4751
|
998 else |
|
|
999 error ("cell2struct: expecting first argument to be a cell array"); |
|
4750
|
1000 } |
|
4751
|
1001 else |
|
5823
|
1002 print_usage (); |
|
4750
|
1003 |
|
|
1004 return retval; |
|
|
1005 } |
|
|
1006 |
|
4817
|
1007 // So we can call Fcellstr directly. |
|
|
1008 extern octave_value_list Fcellstr (const octave_value_list& args, int); |
|
|
1009 |
|
|
1010 DEFUN (rmfield, args, , |
|
|
1011 "-*- texinfo -*-\n\ |
|
|
1012 @deftypefn {Built-in Function} {} rmfield (@var{s}, @var{f})\n\ |
|
|
1013 Remove field @var{f} from the structure @var{s}. If @var{f} is a\n\ |
|
|
1014 cell array of character strings or a character array, remove the\n\ |
|
|
1015 named fields.\n\ |
|
5642
|
1016 @seealso{cellstr, iscellstr, setfield}\n\ |
|
|
1017 @end deftypefn") |
|
4817
|
1018 { |
|
|
1019 octave_value retval; |
|
|
1020 |
|
|
1021 int nargin = args.length (); |
|
|
1022 |
|
|
1023 if (nargin == 2) |
|
|
1024 { |
|
|
1025 Octave_map m = args(0).map_value (); |
|
|
1026 |
|
|
1027 octave_value_list fval = Fcellstr (args(1), 1); |
|
|
1028 |
|
|
1029 if (! error_state) |
|
|
1030 { |
|
|
1031 Cell fcell = fval(0).cell_value (); |
|
|
1032 |
|
|
1033 for (int i = 0; i < fcell.numel (); i++) |
|
|
1034 { |
|
|
1035 std::string key = fcell(i).string_value (); |
|
|
1036 |
|
|
1037 if (m.contains (key)) |
|
|
1038 m.del (key); |
|
|
1039 else |
|
|
1040 { |
|
|
1041 error ("rmfield: structure does not contain field %s", |
|
|
1042 key.c_str ()); |
|
|
1043 |
|
|
1044 break; |
|
|
1045 } |
|
|
1046 } |
|
|
1047 |
|
|
1048 if (! error_state) |
|
|
1049 retval = m; |
|
|
1050 } |
|
|
1051 } |
|
|
1052 else |
|
5823
|
1053 print_usage (); |
|
4817
|
1054 |
|
|
1055 return retval; |
|
|
1056 } |
|
|
1057 |
|
|
1058 bool |
|
6974
|
1059 octave_struct::save_ascii (std::ostream& os) |
|
4817
|
1060 { |
|
|
1061 Octave_map m = map_value (); |
|
6639
|
1062 os << "# length: " << m.nfields () << "\n"; |
|
4817
|
1063 |
|
|
1064 Octave_map::iterator i = m.begin (); |
|
|
1065 while (i != m.end ()) |
|
|
1066 { |
|
5341
|
1067 octave_value val = map.contents (i); |
|
4817
|
1068 |
|
6974
|
1069 bool b = save_ascii_data (os, val, m.key (i), false, 0); |
|
4817
|
1070 |
|
|
1071 if (! b) |
|
|
1072 return os; |
|
|
1073 |
|
|
1074 i++; |
|
|
1075 } |
|
|
1076 |
|
|
1077 return true; |
|
|
1078 } |
|
|
1079 |
|
|
1080 bool |
|
|
1081 octave_struct::load_ascii (std::istream& is) |
|
|
1082 { |
|
5275
|
1083 octave_idx_type len = 0; |
|
4817
|
1084 bool success = true; |
|
|
1085 |
|
|
1086 if (extract_keyword (is, "length", len) && len >= 0) |
|
|
1087 { |
|
|
1088 if (len > 0) |
|
|
1089 { |
|
|
1090 Octave_map m (map); |
|
|
1091 |
|
5275
|
1092 for (octave_idx_type j = 0; j < len; j++) |
|
4817
|
1093 { |
|
|
1094 octave_value t2; |
|
|
1095 bool dummy; |
|
|
1096 |
|
|
1097 // recurse to read cell elements |
|
|
1098 std::string nm |
|
5756
|
1099 = read_ascii_data (is, std::string (), dummy, t2, j); |
|
4817
|
1100 |
|
|
1101 if (!is) |
|
|
1102 break; |
|
|
1103 |
|
6293
|
1104 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
|
5433
|
1105 |
|
6293
|
1106 if (error_state) |
|
|
1107 { |
|
|
1108 error ("load: internal error loading struct elements"); |
|
|
1109 return false; |
|
|
1110 } |
|
5433
|
1111 |
|
6293
|
1112 m.assign (nm, tcell); |
|
4817
|
1113 } |
|
|
1114 |
|
|
1115 if (is) |
|
|
1116 map = m; |
|
|
1117 else |
|
|
1118 { |
|
|
1119 error ("load: failed to load structure"); |
|
|
1120 success = false; |
|
|
1121 } |
|
|
1122 } |
|
|
1123 else if (len == 0 ) |
|
6292
|
1124 map = Octave_map (dim_vector (1, 1)); |
|
4817
|
1125 else |
|
|
1126 panic_impossible (); |
|
|
1127 } |
|
|
1128 else { |
|
|
1129 error ("load: failed to extract number of elements in structure"); |
|
|
1130 success = false; |
|
|
1131 } |
|
|
1132 |
|
|
1133 return success; |
|
|
1134 } |
|
|
1135 |
|
|
1136 bool |
|
|
1137 octave_struct::save_binary (std::ostream& os, bool& save_as_floats) |
|
|
1138 { |
|
|
1139 Octave_map m = map_value (); |
|
|
1140 |
|
6639
|
1141 int32_t len = m.nfields (); |
|
5760
|
1142 os.write (reinterpret_cast<char *> (&len), 4); |
|
4817
|
1143 |
|
|
1144 Octave_map::iterator i = m.begin (); |
|
|
1145 while (i != m.end ()) |
|
|
1146 { |
|
5341
|
1147 octave_value val = map.contents (i); |
|
4817
|
1148 |
|
5341
|
1149 bool b = save_binary_data (os, val, m.key (i), "", 0, save_as_floats); |
|
4817
|
1150 |
|
|
1151 if (! b) |
|
|
1152 return os; |
|
|
1153 |
|
|
1154 i++; |
|
|
1155 } |
|
|
1156 |
|
|
1157 return true; |
|
|
1158 } |
|
|
1159 |
|
|
1160 bool |
|
|
1161 octave_struct::load_binary (std::istream& is, bool swap, |
|
5760
|
1162 oct_mach_info::float_format fmt) |
|
4817
|
1163 { |
|
|
1164 bool success = true; |
|
5828
|
1165 int32_t len; |
|
5760
|
1166 if (! is.read (reinterpret_cast<char *> (&len), 4)) |
|
4817
|
1167 return false; |
|
|
1168 if (swap) |
|
4944
|
1169 swap_bytes<4> (&len); |
|
4817
|
1170 |
|
|
1171 if (len > 0) |
|
|
1172 { |
|
|
1173 Octave_map m (map); |
|
|
1174 |
|
5275
|
1175 for (octave_idx_type j = 0; j < len; j++) |
|
4817
|
1176 { |
|
|
1177 octave_value t2; |
|
|
1178 bool dummy; |
|
|
1179 std::string doc; |
|
|
1180 |
|
|
1181 // recurse to read cell elements |
|
|
1182 std::string nm = read_binary_data (is, swap, fmt, std::string (), |
|
|
1183 dummy, t2, doc); |
|
|
1184 |
|
|
1185 if (!is) |
|
|
1186 break; |
|
|
1187 |
|
6293
|
1188 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
|
5433
|
1189 |
|
6293
|
1190 if (error_state) |
|
|
1191 { |
|
|
1192 error ("load: internal error loading struct elements"); |
|
|
1193 return false; |
|
|
1194 } |
|
5433
|
1195 |
|
6293
|
1196 m.assign (nm, tcell); |
|
4817
|
1197 } |
|
|
1198 |
|
|
1199 if (is) |
|
|
1200 map = m; |
|
|
1201 else |
|
|
1202 { |
|
|
1203 error ("load: failed to load structure"); |
|
|
1204 success = false; |
|
|
1205 } |
|
|
1206 } |
|
|
1207 else if (len == 0 ) |
|
6292
|
1208 map = Octave_map (dim_vector (1, 1)); |
|
4817
|
1209 else |
|
|
1210 panic_impossible (); |
|
|
1211 |
|
|
1212 return success; |
|
|
1213 } |
|
|
1214 |
|
|
1215 #if defined (HAVE_HDF5) |
|
|
1216 |
|
|
1217 bool |
|
|
1218 octave_struct::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
|
|
1219 { |
|
|
1220 hid_t data_hid = -1; |
|
|
1221 |
|
|
1222 data_hid = H5Gcreate (loc_id, name, 0); |
|
|
1223 if (data_hid < 0) return false; |
|
|
1224 |
|
|
1225 // recursively add each element of the structure to this group |
|
|
1226 Octave_map m = map_value (); |
|
|
1227 Octave_map::iterator i = m.begin (); |
|
|
1228 while (i != m.end ()) |
|
|
1229 { |
|
5341
|
1230 octave_value val = map.contents (i); |
|
4817
|
1231 |
|
5341
|
1232 bool retval2 = add_hdf5_data (data_hid, val, m.key (i), "", false, |
|
4817
|
1233 save_as_floats); |
|
|
1234 |
|
|
1235 if (! retval2) |
|
|
1236 break; |
|
|
1237 |
|
|
1238 i++; |
|
|
1239 } |
|
|
1240 |
|
|
1241 H5Gclose (data_hid); |
|
4837
|
1242 |
|
4817
|
1243 return true; |
|
|
1244 } |
|
|
1245 |
|
|
1246 bool |
|
|
1247 octave_struct::load_hdf5 (hid_t loc_id, const char *name, |
|
|
1248 bool have_h5giterate_bug) |
|
|
1249 { |
|
|
1250 bool retval = false; |
|
|
1251 |
|
|
1252 hdf5_callback_data dsub; |
|
|
1253 |
|
|
1254 herr_t retval2 = 0; |
|
6292
|
1255 Octave_map m (dim_vector (1, 1)); |
|
4817
|
1256 int current_item = 0; |
|
|
1257 #ifdef HAVE_H5GGET_NUM_OBJS |
|
|
1258 hsize_t num_obj = 0; |
|
5060
|
1259 hid_t group_id = H5Gopen (loc_id, name); |
|
|
1260 H5Gget_num_objs (group_id, &num_obj); |
|
|
1261 H5Gclose (group_id); |
|
4817
|
1262 |
|
|
1263 while (current_item < static_cast<int> (num_obj) |
|
|
1264 && (retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
1265 hdf5_read_next_data, &dsub)) > 0) |
|
|
1266 #else |
|
|
1267 while ((retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
1268 hdf5_read_next_data, &dsub)) > 0) |
|
|
1269 #endif |
|
|
1270 { |
|
5342
|
1271 octave_value t2 = dsub.tc; |
|
|
1272 |
|
6293
|
1273 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
|
5433
|
1274 |
|
6293
|
1275 if (error_state) |
|
|
1276 { |
|
|
1277 error ("load: internal error loading struct elements"); |
|
|
1278 return false; |
|
|
1279 } |
|
5433
|
1280 |
|
6293
|
1281 m.assign (dsub.name, tcell); |
|
5336
|
1282 |
|
4817
|
1283 if (have_h5giterate_bug) |
|
|
1284 current_item++; // H5Giterate returned the last index processed |
|
|
1285 } |
|
|
1286 |
|
|
1287 if (retval2 >= 0) |
|
|
1288 { |
|
|
1289 map = m; |
|
|
1290 retval = true; |
|
|
1291 } |
|
|
1292 |
|
|
1293 return retval; |
|
|
1294 } |
|
|
1295 |
|
4687
|
1296 #endif |
|
|
1297 |
|
5900
|
1298 mxArray * |
|
|
1299 octave_struct::as_mxArray (void) const |
|
|
1300 { |
|
|
1301 int nf = nfields (); |
|
|
1302 string_vector kv = map_keys (); |
|
6065
|
1303 |
|
|
1304 OCTAVE_LOCAL_BUFFER (const char *, f, nf); |
|
|
1305 |
|
5900
|
1306 for (int i = 0; i < nf; i++) |
|
6065
|
1307 f[i] = kv[i].c_str (); |
|
5900
|
1308 |
|
|
1309 mxArray *retval = new mxArray (dims (), nf, f); |
|
|
1310 |
|
|
1311 mxArray **elts = static_cast<mxArray **> (retval->get_data ()); |
|
|
1312 |
|
6686
|
1313 mwSize nel = numel (); |
|
5900
|
1314 |
|
6686
|
1315 mwSize ntot = nf * nel; |
|
5900
|
1316 |
|
|
1317 for (int i = 0; i < nf; i++) |
|
|
1318 { |
|
|
1319 Cell c = map.contents (kv[i]); |
|
|
1320 |
|
|
1321 const octave_value *p = c.data (); |
|
|
1322 |
|
6686
|
1323 mwIndex k = 0; |
|
|
1324 for (mwIndex j = i; j < ntot; j += nf) |
|
5900
|
1325 elts[j] = new mxArray (p[k++]); |
|
|
1326 } |
|
|
1327 |
|
|
1328 return retval; |
|
|
1329 } |
|
|
1330 |
|
2376
|
1331 /* |
|
|
1332 ;;; Local Variables: *** |
|
|
1333 ;;; mode: C++ *** |
|
|
1334 ;;; End: *** |
|
|
1335 */ |
