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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 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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31 #include "error.h" |
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32 #include "str-vec.h" |
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33 |
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34 #include "oct-map.h" |
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35 #include "utils.h" |
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36 |
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37 Cell |
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38 Octave_map::contents (const std::string& k) const |
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39 { |
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40 const_iterator p = seek (k); |
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41 |
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42 return p != end () ? p->second : Cell (); |
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43 } |
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44 |
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45 string_vector |
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46 Octave_map::keys (void) const |
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47 { |
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48 int len = length (); |
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49 |
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50 string_vector names (len); |
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51 |
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52 int i = 0; |
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53 for (const_iterator p = begin (); p != end (); p++) |
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54 names[i++] = key (p); |
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55 |
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56 return names; |
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57 } |
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58 |
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59 Octave_map |
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60 Octave_map::reshape (const dim_vector& new_dims) const |
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61 { |
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62 Octave_map retval; |
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63 |
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64 if (new_dims != dims ()) |
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65 { |
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66 for (const_iterator p = begin (); p != end (); p++) |
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67 retval.assign (key(p), contents(p).reshape (new_dims)); |
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68 |
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69 retval.dimensions = new_dims; |
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70 } |
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71 else |
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72 retval = *this; |
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73 |
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74 return retval; |
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75 } |
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76 |
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77 int |
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78 Octave_map::numel (void) const |
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79 { |
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80 int retval; |
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81 |
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82 if (empty ()) |
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83 retval = 0; |
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84 else |
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85 { |
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86 Cell tmp = contents (begin ()); |
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87 retval = tmp.numel (); |
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88 } |
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89 |
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90 return retval; |
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91 } |
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92 |
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93 Octave_map |
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94 Octave_map::resize (const dim_vector& dv) const |
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95 { |
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96 Octave_map retval; |
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97 |
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98 if (dv != dims ()) |
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99 { |
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100 for (const_iterator p = begin (); p != end (); p++) |
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101 { |
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102 Cell tmp = contents(p); |
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103 tmp.resize(dv); |
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104 retval.assign (key(p), tmp); |
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105 } |
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106 |
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107 retval.dimensions = dv; |
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108 } |
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109 else |
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110 retval = *this; |
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111 |
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112 |
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113 return retval; |
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114 } |
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115 |
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116 Octave_map |
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117 Octave_map::concat (const Octave_map& rb, const Array<int>& ra_idx) |
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118 { |
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119 Octave_map retval; |
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120 |
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121 if (length() == rb.length()) |
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122 { |
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123 for (Octave_map::const_iterator pa = begin (); pa != end (); pa++) |
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124 { |
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125 Octave_map::const_iterator pb = rb.seek (key(pa)); |
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126 |
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127 if (pb == rb.end ()) |
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128 { |
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129 error ("field name mismatch in structure concatenation"); |
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130 break; |
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131 } |
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132 |
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133 retval.assign (key(pa), |
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134 contents(pa).insert (rb.contents(pb), ra_idx)); |
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135 } |
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136 } |
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137 else |
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138 error ("field name mismatch in structure concatenation"); |
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139 |
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140 return retval; |
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141 } |
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142 |
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143 static string_vector |
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144 equiv_keys (const Octave_map& a, const Octave_map& b) |
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145 { |
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146 string_vector retval; |
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147 |
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148 string_vector a_keys = a.keys().qsort (); |
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149 string_vector b_keys = b.keys().qsort (); |
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150 |
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151 int a_len = a_keys.length (); |
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152 int b_len = b_keys.length (); |
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153 |
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154 if (a_len == b_len) |
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155 { |
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156 for (int i = 0; i < a_len; i++) |
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157 { |
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158 if (a_keys[i] != b_keys[i]) |
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159 return retval; |
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160 } |
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161 |
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162 retval = a_keys; |
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163 } |
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164 |
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165 return retval; |
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166 } |
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167 |
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168 Octave_map& |
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169 Octave_map::assign (const octave_value_list& idx, const Octave_map& rhs) |
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170 { |
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171 string_vector t_keys = empty () ? rhs.keys () : equiv_keys (*this, rhs); |
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172 |
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173 if (! t_keys.empty ()) |
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174 { |
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175 int len = t_keys.length (); |
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176 |
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177 for (int i = 0; i < len; i++) |
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178 { |
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179 std::string k = t_keys[i]; |
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180 |
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181 Cell t_rhs = rhs.contents (k); |
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182 |
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183 assign (idx, k, t_rhs); |
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184 |
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185 if (error_state) |
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186 break; |
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187 } |
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188 } |
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189 else |
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190 error ("field name mismatch in structure assignment"); |
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191 |
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192 return *this; |
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193 } |
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194 |
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195 static dim_vector |
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196 common_size (const dim_vector& a, const dim_vector& b) |
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197 { |
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198 dim_vector retval; |
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199 |
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200 int a_len = a.length (); |
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201 int b_len = b.length (); |
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202 |
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203 int new_len = std::max (a_len, b_len); |
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204 int min_len = std::min (a_len, b_len); |
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205 |
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206 retval.resize (new_len); |
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207 |
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208 for (int i = 0; i < min_len; i++) |
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209 retval(i) = std::max (a(i), b(i)); |
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210 |
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211 if (a_len < b_len) |
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212 { |
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213 for (int i = min_len; i < b_len; i++) |
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214 retval(i) = b(i); |
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215 } |
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216 else if (a_len > b_len) |
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217 { |
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218 for (int i = min_len; i < a_len; i++) |
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219 retval(i) = a(i); |
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220 } |
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221 |
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222 return retval; |
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223 } |
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224 |
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225 Octave_map& |
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226 Octave_map::assign (const octave_value_list& idx, const std::string& k, |
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227 const Cell& rhs) |
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228 { |
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229 Cell tmp = map[k]; |
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230 |
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231 octave_value fill_value = Matrix (); |
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232 |
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233 tmp.assign (idx, rhs, fill_value); |
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234 |
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235 if (! error_state) |
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236 { |
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237 dim_vector rhs_dims = tmp.dims (); |
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238 |
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239 dim_vector curr_dims = dims (); |
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240 |
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241 dim_vector new_dims = common_size (rhs_dims, curr_dims); |
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242 |
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243 if (new_dims != rhs_dims) |
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244 { |
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245 tmp.resize (new_dims, fill_value); |
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246 } |
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247 else if (new_dims != curr_dims) |
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248 { |
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249 for (iterator p = begin (); p != end (); p++) |
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250 contents(p).resize (rhs_dims, fill_value); |
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251 } |
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252 |
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253 dimensions = new_dims; |
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254 |
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255 map[k] = tmp; |
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256 } |
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257 |
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258 return *this; |
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259 } |
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260 |
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261 Octave_map& |
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262 Octave_map::assign (const std::string& k, const octave_value& rhs) |
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263 { |
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264 if (empty ()) |
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265 { |
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266 map[k] = Cell (rhs); |
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267 |
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268 dimensions = dim_vector (1, 1); |
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269 } |
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270 else |
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271 { |
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272 dim_vector dv = dims (); |
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273 |
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274 if (dv.all_ones ()) |
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275 map[k] = Cell (rhs); |
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276 else |
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277 error ("invalid structure assignment"); |
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278 } |
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279 |
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280 return *this; |
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281 } |
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282 |
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283 Octave_map& |
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284 Octave_map::assign (const std::string& k, const Cell& rhs) |
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285 { |
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286 if (empty ()) |
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287 { |
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288 map[k] = rhs; |
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289 |
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290 dimensions = rhs.dims (); |
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291 } |
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292 else |
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293 { |
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294 if (dims () == rhs.dims ()) |
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295 map[k] = rhs; |
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296 else |
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297 error ("invalid structure assignment"); |
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298 } |
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299 |
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300 return *this; |
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301 } |
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302 |
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303 Octave_map |
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304 Octave_map::index (const octave_value_list& idx) |
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305 { |
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306 Octave_map retval; |
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307 |
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308 for (iterator p = begin (); p != end (); p++) |
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309 { |
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310 Cell tmp = contents(p).index (idx); |
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311 |
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312 if (error_state) |
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313 break; |
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314 |
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315 retval.assign (key(p), tmp); |
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316 } |
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317 |
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318 return error_state ? Octave_map () : retval; |
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319 } |
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320 |
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321 /* |
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322 ;;; Local Variables: *** |
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323 ;;; mode: C++ *** |
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324 ;;; End: *** |
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325 */ |
