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1 /* |
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2 |
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3 Copyright (C) 1999 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 (NO_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 <iostream> |
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32 |
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33 #include "lo-sstream.h" |
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34 #include "lo-utils.h" |
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35 |
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36 #include "defun.h" |
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37 #include "error.h" |
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38 #include "ov-cell.h" |
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39 #include "oct-obj.h" |
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40 #include "unwind-prot.h" |
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41 #include "utils.h" |
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42 #include "ov-base-mat.h" |
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43 #include "ov-base-mat.cc" |
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44 #include "ov-re-mat.h" |
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45 #include "ov-scalar.h" |
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46 |
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47 template class octave_base_matrix<Cell>; |
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48 |
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49 DEFINE_OCTAVE_ALLOCATOR (octave_cell); |
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50 |
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51 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_cell, "cell"); |
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52 |
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53 octave_value |
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54 octave_cell::subsref (const std::string type, |
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55 const SLList<octave_value_list>& idx) |
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56 { |
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57 octave_value retval; |
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58 |
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59 switch (type[0]) |
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60 { |
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61 case '(': |
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62 retval = do_index_op (idx.front ()); |
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63 break; |
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64 |
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65 case '{': |
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66 { |
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67 octave_value tmp = do_index_op (idx.front ()); |
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68 |
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69 Cell tcell = tmp.cell_value (); |
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70 |
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71 if (tcell.length () == 1) |
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72 retval = tcell(0,0); |
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73 else |
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74 { |
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75 int nr = tcell.rows (); |
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76 int nc = tcell.columns (); |
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77 octave_value_list lst (nr * nc, octave_value ()); |
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78 int k = 0; |
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79 for (int j = 0; j < nc; j++) |
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80 for (int i = 0; i < nr; i++) |
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81 lst(k++) = tcell(i,j); |
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82 retval = octave_value (lst, true); |
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83 } |
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84 } |
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85 break; |
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86 |
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87 case '.': |
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88 { |
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89 std::string nm = type_name (); |
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90 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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91 } |
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92 break; |
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93 |
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94 default: |
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95 panic_impossible (); |
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96 } |
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97 |
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98 return retval.next_subsref (type, idx); |
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99 } |
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100 |
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101 octave_value |
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102 octave_cell::subsasgn (const std::string type, |
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103 const SLList<octave_value_list>& idx, |
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104 const octave_value& rhs) |
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105 { |
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106 octave_value retval; |
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107 |
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108 int n = type.length (); |
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109 |
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110 octave_value t_rhs = rhs; |
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111 |
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112 if (n > 1) |
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113 { |
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114 switch (type[0]) |
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115 { |
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116 case '(': |
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117 { |
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118 octave_value tmp = do_index_op (idx.front (), true); |
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119 |
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120 if (! tmp.is_defined ()) |
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121 tmp = octave_value::empty_conv (type.substr (1), rhs); |
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122 |
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123 if (! error_state) |
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124 { |
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125 SLList<octave_value_list> next_idx (idx); |
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126 |
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127 next_idx.remove_front (); |
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128 |
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129 t_rhs = tmp.subsasgn (type.substr (1), next_idx, rhs); |
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130 } |
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131 } |
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132 break; |
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133 |
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134 case '{': |
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135 { |
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136 octave_value tmp = do_index_op (idx.front (), true); |
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137 |
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138 if (! tmp.is_defined ()) |
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139 tmp = octave_value::empty_conv (type.substr (1), rhs); |
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140 |
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141 Cell tcell = tmp.cell_value (); |
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142 |
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143 if (! error_state && tcell.length () == 1) |
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144 { |
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145 tmp = tcell(0,0); |
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146 |
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147 SLList<octave_value_list> next_idx (idx); |
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148 |
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149 next_idx.remove_front (); |
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150 |
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151 t_rhs = tmp.subsasgn (type.substr (1), next_idx, rhs); |
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152 } |
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153 } |
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154 break; |
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155 |
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156 case '.': |
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157 { |
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158 std::string nm = type_name (); |
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159 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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160 } |
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161 break; |
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162 |
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163 default: |
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164 panic_impossible (); |
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165 } |
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166 } |
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167 |
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168 if (! error_state) |
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169 { |
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170 switch (type[0]) |
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171 { |
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172 case '(': |
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173 { |
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174 octave_value_list i = idx.front (); |
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175 |
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176 if (t_rhs.is_cell ()) |
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177 octave_base_matrix<Cell>::assign (i, t_rhs.cell_value ()); |
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178 else |
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179 octave_base_matrix<Cell>::assign (i, Cell (t_rhs)); |
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180 |
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181 retval = octave_value (this, count + 1); |
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182 } |
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183 break; |
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184 |
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185 case '{': |
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186 { |
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187 octave_value_list i = idx.front (); |
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188 |
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189 octave_base_matrix<Cell>::assign (i, Cell (t_rhs)); |
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190 |
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191 retval = octave_value (this, count + 1); |
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192 } |
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193 break; |
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194 |
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195 case '.': |
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196 { |
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197 std::string nm = type_name (); |
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198 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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199 } |
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200 break; |
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201 |
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202 default: |
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203 panic_impossible (); |
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204 } |
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205 } |
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206 |
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207 return retval; |
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208 } |
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209 |
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210 void |
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211 octave_cell::assign (const octave_value_list& idx, const octave_value& rhs) |
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212 { |
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213 if (rhs.is_cell ()) |
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214 octave_base_matrix<Cell>::assign (idx, rhs.cell_value ()); |
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215 else |
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216 octave_base_matrix<Cell>::assign (idx, Cell (rhs)); |
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217 } |
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218 |
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219 octave_value_list |
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220 octave_cell::list_value (void) const |
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221 { |
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222 octave_value_list retval; |
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223 |
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224 int nr = rows (); |
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225 int nc = columns (); |
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226 |
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227 if (nr == 1 && nc > 0) |
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228 { |
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229 retval.resize (nc); |
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230 |
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231 for (int i = 0; i < nc; i++) |
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232 retval(i) = matrix(0,i); |
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233 } |
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234 else if (nc == 1 && nr > 0) |
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235 { |
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236 retval.resize (nr); |
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237 |
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238 for (int i = 0; i < nr; i++) |
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239 retval(i) = matrix(i,0); |
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240 } |
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241 else |
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242 error ("invalid conversion from cell array to list"); |
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243 |
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244 return retval; |
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245 } |
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246 |
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247 void |
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248 octave_cell::print (std::ostream& os, bool) const |
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249 { |
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250 print_raw (os); |
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251 } |
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252 |
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253 void |
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254 octave_cell::print_raw (std::ostream& os, bool) const |
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255 { |
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256 int nr = rows (); |
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257 int nc = columns (); |
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258 |
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259 if (nr > 0 && nc > 0) |
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260 { |
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261 indent (os); |
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262 os << "{"; |
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263 newline (os); |
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264 |
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265 increment_indent_level (); |
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266 |
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267 for (int j = 0; j < nc; j++) |
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268 { |
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269 for (int i = 0; i < nr; i++) |
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270 { |
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271 OSSTREAM buf; |
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272 buf << "[" << i+1 << "," << j+1 << "]" << OSSTREAM_ENDS; |
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273 |
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274 octave_value val = matrix(i,j); |
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275 |
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276 val.print_with_name (os, OSSTREAM_STR (buf)); |
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277 |
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278 OSSTREAM_FREEZE (buf); |
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279 } |
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280 } |
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281 |
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282 decrement_indent_level (); |
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283 |
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284 indent (os); |
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285 os << "}"; |
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286 newline (os); |
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287 } |
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288 else |
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289 { |
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290 os << "{}"; |
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291 if (nr > 0 || nc > 0) |
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292 os << "(" << nr << "x" << nc << ")"; |
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293 os << "\n"; |
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294 } |
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295 } |
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296 |
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297 bool |
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298 octave_cell::print_name_tag (std::ostream& os, const std::string& name) const |
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299 { |
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300 indent (os); |
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301 |
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302 int nr = rows (); |
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303 int nc = columns (); |
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304 |
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305 if (nr > 0 && nc > 0) |
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306 { |
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307 os << name << " ="; |
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308 newline (os); |
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309 } |
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310 else |
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311 os << name << " = "; |
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312 |
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313 return false; |
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314 } |
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315 |
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316 DEFUN (iscell, args, , |
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317 "-*- texinfo -*-\n\ |
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318 @deftypefn {Built-in Function} {} iscell (@var{x})\n\ |
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319 Return true if @var{x} is a cell array object. Otherwise, return\n\ |
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320 false.\n\ |
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321 @end deftypefn") |
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322 { |
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323 octave_value retval; |
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324 |
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325 if (args.length () == 1) |
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326 retval = args(0).is_cell (); |
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327 else |
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328 print_usage ("iscell"); |
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329 |
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330 return retval; |
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331 } |
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332 |
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333 DEFUN (cell, args, , |
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334 "-*- texinfo -*-\n\ |
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335 @deftypefn {Built-in Function} {} cell (@var{x})\n\ |
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336 @deftypefnx {Built-in Function} {} cell (@var{n}, @var{m})\n\ |
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337 Create a new cell array object. If invoked with a single scalar\n\ |
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338 argument, @code{cell} returns a square cell array with the dimension\n\ |
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339 specified. If you supply two scalar arguments, @code{cell} takes\n\ |
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340 them to be the number of rows and columns. If given a vector with two\n\ |
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341 elements, @code{cell} uses the values of the elements as the number of\n\ |
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342 rows and columns, respectively.\n\ |
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343 @end deftypefn") |
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344 { |
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345 octave_value retval; |
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346 |
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347 int nargin = args.length (); |
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348 |
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349 switch (nargin) |
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350 { |
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351 case 1: |
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352 { |
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353 int nr, nc; |
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354 get_dimensions (args(0), "cell", nr, nc); |
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355 |
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356 if (! error_state) |
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357 retval = Cell (nr, nc, Matrix ()); |
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358 } |
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359 break; |
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360 |
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361 case 2: |
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362 { |
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363 int nr, nc; |
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364 get_dimensions (args(0), args(1), "cell", nr, nc); |
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365 |
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366 if (! error_state) |
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367 retval = Cell (nr, nc, Matrix ()); |
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368 } |
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369 break; |
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370 |
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371 default: |
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372 print_usage ("cell"); |
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373 break; |
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374 } |
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375 |
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376 return retval; |
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377 } |
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378 |
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379 /* |
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380 ;;; Local Variables: *** |
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381 ;;; mode: C++ *** |
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382 ;;; End: *** |
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383 */ |
