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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 <iostream> |
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32 |
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33 #include "lo-ieee.h" |
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34 #include "mx-base.h" |
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35 |
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36 #include "oct-obj.h" |
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37 #include "ops.h" |
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38 #include "ov-re-mat.h" |
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39 #include "ov-str-mat.h" |
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40 #include "gripes.h" |
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41 #include "pr-output.h" |
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42 #include "pt-mat.h" |
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43 |
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44 #include "byte-swap.h" |
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45 #include "ls-oct-ascii.h" |
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46 #include "ls-hdf5.h" |
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47 #include "ls-utils.h" |
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48 |
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3219
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49 DEFINE_OCTAVE_ALLOCATOR (octave_char_matrix_str); |
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50 |
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4612
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51 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_char_matrix_str, "string", "char"); |
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52 |
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53 static octave_value * |
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54 default_numeric_conversion_function (const octave_value& a) |
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55 { |
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56 CAST_CONV_ARG (const octave_char_matrix_str&); |
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57 |
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58 NDArray nda = v.array_value (true); |
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59 |
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60 return error_state ? 0 : new octave_matrix (nda); |
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61 } |
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62 |
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63 type_conv_fcn |
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64 octave_char_matrix_str::numeric_conversion_function (void) const |
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65 { |
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66 return default_numeric_conversion_function; |
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67 } |
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68 |
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69 octave_value |
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3933
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70 octave_char_matrix_str::do_index_op (const octave_value_list& idx, |
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71 int resize_ok) |
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72 { |
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73 octave_value retval; |
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74 |
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75 int len = idx.length (); |
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76 |
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77 switch (len) |
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78 { |
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79 case 2: |
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80 { |
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81 idx_vector i = idx (0).index_vector (); |
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82 idx_vector j = idx (1).index_vector (); |
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83 |
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84 retval = octave_value (charNDArray (matrix.index (i, j, resize_ok)), |
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85 true); |
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86 } |
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87 break; |
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88 |
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89 case 1: |
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90 { |
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91 idx_vector i = idx (0).index_vector (); |
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92 |
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93 retval = octave_value (charNDArray (matrix.index (i, resize_ok)), |
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94 true); |
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95 } |
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96 break; |
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97 |
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98 default: |
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99 { |
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100 Array<idx_vector> idx_vec (len); |
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101 |
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102 for (int i = 0; i < len; i++) |
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103 idx_vec(i) = idx(i).index_vector (); |
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104 |
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105 retval = octave_value (charNDArray (matrix.index (idx_vec, resize_ok)), |
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106 true); |
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107 } |
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108 break; |
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109 } |
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110 |
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111 return retval; |
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112 } |
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113 |
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114 void |
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115 octave_char_matrix_str::assign (const octave_value_list& idx, |
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116 const charMatrix& rhs) |
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117 { |
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118 int len = idx.length (); |
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119 |
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120 // XXX FIXME XXX |
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121 charMatrix tmp = rhs; |
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122 if (tmp.rows () == 1 && tmp.columns () == 0) |
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123 tmp.resize (0, 0); |
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124 |
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125 for (int i = 0; i < len; i++) |
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126 matrix.set_index (idx(i).index_vector ()); |
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127 |
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128 ::assign (matrix, tmp, Vstring_fill_char); |
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129 } |
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130 |
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131 bool |
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132 octave_char_matrix_str::valid_as_scalar_index (void) const |
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133 { |
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134 bool retval = false; |
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135 error ("octave_char_matrix_str::valid_as_scalar_index(): not implemented"); |
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136 return retval; |
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137 } |
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138 |
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139 #define CHAR_MATRIX_CONV(T, INIT, TNAME, FCN) \ |
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140 T retval INIT; \ |
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141 \ |
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142 if (! force_string_conv) \ |
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143 gripe_invalid_conversion ("string", TNAME); \ |
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144 else \ |
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145 { \ |
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146 if (Vwarn_str_to_num) \ |
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147 gripe_implicit_conversion ("string", TNAME); \ |
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148 \ |
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149 retval = octave_char_matrix::FCN (); \ |
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150 } \ |
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151 \ |
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152 return retval |
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153 |
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154 double |
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155 octave_char_matrix_str::double_value (bool force_string_conv) const |
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156 { |
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157 CHAR_MATRIX_CONV (double, = 0, "real scalar", double_value); |
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158 } |
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159 |
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160 Complex |
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161 octave_char_matrix_str::complex_value (bool force_string_conv) const |
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162 { |
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163 CHAR_MATRIX_CONV (Complex, = 0, "complex scalar", complex_value); |
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164 } |
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165 |
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166 Matrix |
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167 octave_char_matrix_str::matrix_value (bool force_string_conv) const |
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168 { |
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169 CHAR_MATRIX_CONV (Matrix, , "real matrix", matrix_value); |
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170 } |
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171 |
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172 ComplexMatrix |
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173 octave_char_matrix_str::complex_matrix_value (bool force_string_conv) const |
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174 { |
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175 CHAR_MATRIX_CONV (ComplexMatrix, , "complex matrix", complex_matrix_value); |
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176 } |
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177 |
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178 NDArray |
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179 octave_char_matrix_str::array_value (bool force_string_conv) const |
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180 { |
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181 CHAR_MATRIX_CONV (NDArray, , "real N-d array", array_value); |
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182 } |
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183 |
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184 ComplexNDArray |
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185 octave_char_matrix_str::complex_array_value (bool force_string_conv) const |
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186 { |
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187 CHAR_MATRIX_CONV (ComplexNDArray, , "complex N-d array", |
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188 complex_array_value); |
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189 } |
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190 |
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191 string_vector |
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192 octave_char_matrix_str::all_strings (bool, bool) const |
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193 { |
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194 string_vector retval; |
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195 |
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196 if (matrix.ndims () == 2) |
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197 { |
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198 charMatrix chm = matrix.matrix_value (); |
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199 |
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200 int n = chm.rows (); |
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201 |
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202 retval.resize (n); |
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203 |
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204 for (int i = 0; i < n; i++) |
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205 retval[i] = chm.row_as_string (i, true); |
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206 } |
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207 else |
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208 error ("invalid conversion of charNDArray to string_vector"); |
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209 |
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210 return retval; |
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211 } |
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212 |
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213 std::string |
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214 octave_char_matrix_str::string_value (bool) const |
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215 { |
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216 std::string retval; |
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217 |
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218 if (matrix.ndims () == 2) |
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219 { |
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220 charMatrix chm = matrix.matrix_value (); |
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221 |
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222 retval = chm.row_as_string (0); // XXX FIXME??? XXX |
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223 } |
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224 else |
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225 error ("invalid conversion of charNDArray to string"); |
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226 |
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227 return retval; |
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228 } |
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229 |
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230 void |
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231 octave_char_matrix_str::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
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232 { |
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233 octave_print_internal (os, matrix, pr_as_read_syntax, |
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234 current_print_indent_level (), true); |
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235 } |
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236 |
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237 bool |
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238 octave_char_matrix_str::save_ascii (std::ostream& os, |
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239 bool& /* infnan_warned */, |
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240 bool /* strip_nan_and_inf */) |
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241 { |
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242 charMatrix chm = char_matrix_value (); |
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243 int elements = chm.rows (); |
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244 os << "# elements: " << elements << "\n"; |
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245 for (int i = 0; i < elements; i++) |
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246 { |
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247 unsigned len = chm.cols (); |
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248 os << "# length: " << len << "\n"; |
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249 std::string tstr = chm.row_as_string (i, false, true); |
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250 const char *tmp = tstr.data (); |
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251 if (tstr.length () > len) |
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252 panic_impossible (); |
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253 os.write (X_CAST (char *, tmp), len); |
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254 os << "\n"; |
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255 } |
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256 |
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257 return true; |
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258 } |
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259 |
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260 bool |
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261 octave_char_matrix_str::load_ascii (std::istream& is) |
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262 { |
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263 int elements; |
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264 bool success = true; |
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265 std::streampos pos = is.tellg (); |
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266 |
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267 if (extract_keyword (is, "elements", elements, true)) |
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268 { |
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269 |
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270 if (elements >= 0) |
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271 { |
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272 // XXX FIXME XXX -- need to be able to get max length |
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273 // before doing anything. |
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274 |
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275 charMatrix chm (elements, 0); |
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276 int max_len = 0; |
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277 for (int i = 0; i < elements; i++) |
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278 { |
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279 int len; |
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280 if (extract_keyword (is, "length", len) && len >= 0) |
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281 { |
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282 OCTAVE_LOCAL_BUFFER (char, tmp, len+1); |
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283 |
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284 if (len > 0 && ! is.read (X_CAST (char *, tmp), len)) |
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285 { |
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286 error ("load: failed to load string constant"); |
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287 success = false; |
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288 break; |
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289 } |
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290 else |
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291 { |
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292 tmp [len] = '\0'; |
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293 if (len > max_len) |
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294 { |
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295 max_len = len; |
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296 chm.resize (elements, max_len, 0); |
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297 } |
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298 chm.insert (tmp, i, 0); |
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299 } |
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300 } |
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301 else |
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302 { |
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303 error ("load: failed to extract string length for element %d", |
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304 i+1); |
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305 success = false; |
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306 } |
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307 } |
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308 |
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309 if (! error_state) |
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310 matrix = chm; |
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311 |
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312 } |
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313 else |
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314 { |
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315 error ("load: failed to extract number of string elements"); |
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316 success = false; |
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317 } |
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318 } |
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319 else |
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320 { |
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321 // re-read the same line again |
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322 is.clear (); |
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323 is.seekg (pos); |
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324 |
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325 int len; |
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326 |
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327 if (extract_keyword (is, "length", len) && len >= 0) |
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328 { |
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329 // This is cruft for backward compatiability, but relatively harmless. |
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330 |
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331 OCTAVE_LOCAL_BUFFER (char, tmp, len+1); |
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332 |
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333 if (len > 0 && ! is.read (X_CAST (char *, tmp), len)) |
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334 { |
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335 error ("load: failed to load string constant"); |
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336 } |
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337 else |
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338 { |
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339 tmp [len] = '\0'; |
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340 |
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341 if (is) |
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342 matrix = charMatrix (tmp); |
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343 else |
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344 error ("load: failed to load string constant"); |
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345 } |
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346 } |
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347 } |
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348 |
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349 return success; |
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350 } |
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351 |
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352 bool |
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353 octave_char_matrix_str::save_binary (std::ostream& os, |
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354 bool& /* save_as_floats */) |
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355 { |
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356 FOUR_BYTE_INT nr = rows (); |
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357 os.write (X_CAST (char *, &nr), 4); |
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358 charMatrix chm = char_matrix_value (); |
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359 for (int i = 0; i < nr; i++) |
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360 { |
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361 FOUR_BYTE_INT len = chm.cols (); |
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362 os.write (X_CAST (char *, &len), 4); |
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363 std::string tstr = chm.row_as_string (i); |
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364 const char *btmp = tstr.data (); |
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365 os.write (X_CAST (char *, btmp), len); |
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366 } |
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367 return true; |
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368 } |
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369 |
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370 bool |
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371 octave_char_matrix_str::load_binary (std::istream& is, bool swap, |
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372 oct_mach_info::float_format /* fmt */) |
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373 { |
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374 FOUR_BYTE_INT elements; |
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375 if (! is.read (X_CAST (char *, &elements), 4)) |
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376 return false; |
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377 if (swap) |
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378 swap_4_bytes (X_CAST (char *, &elements)); |
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379 charMatrix chm (elements, 0); |
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380 int max_len = 0; |
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381 for (int i = 0; i < elements; i++) |
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382 { |
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383 FOUR_BYTE_INT len; |
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384 if (! is.read (X_CAST (char *, &len), 4)) |
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385 return false; |
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386 if (swap) |
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387 swap_4_bytes (X_CAST (char *, &len)); |
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388 OCTAVE_LOCAL_BUFFER (char, btmp, len+1); |
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389 if (! is.read (X_CAST (char *, btmp), len)) |
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390 return false; |
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391 if (len > max_len) |
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392 { |
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393 max_len = len; |
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394 chm.resize (elements, max_len, 0); |
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395 } |
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396 btmp [len] = '\0'; |
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397 chm.insert (btmp, i, 0); |
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398 } |
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399 |
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400 matrix = chm; |
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401 return true; |
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402 } |
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403 |
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404 #if defined (HAVE_HDF5) |
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405 bool |
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406 octave_char_matrix_str::save_hdf5 (hid_t loc_id, const char *name, |
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407 bool /* save_as_floats */) |
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408 { |
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409 hsize_t dimens[3]; |
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410 hid_t space_hid = -1, type_hid = -1, data_hid = -1; |
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411 bool retval = true; |
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412 |
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413 int nr = rows (); |
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414 charMatrix chm = char_matrix_value (); |
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415 int nc = chm.cols (); |
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416 |
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417 // create datatype for (null-terminated) string to write from: |
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418 type_hid = H5Tcopy (H5T_C_S1); H5Tset_size (type_hid, nc + 1); |
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419 if (type_hid < 0) return false; |
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420 |
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421 dimens[0] = nr; |
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422 space_hid = H5Screate_simple (nr > 0 ? 1 : 0, dimens, (hsize_t*) 0); |
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423 if (space_hid < 0) |
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424 { |
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425 H5Tclose (type_hid); |
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426 return false; |
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427 } |
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428 |
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429 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT); |
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430 if (data_hid < 0) |
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431 { |
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432 H5Sclose (space_hid); |
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433 H5Tclose (type_hid); |
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434 return false; |
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435 } |
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436 |
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437 OCTAVE_LOCAL_BUFFER (char, s, nr * (nc + 1)); |
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438 |
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439 for (int i = 0; i < nr; ++i) |
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440 { |
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441 std::string tstr = chm.row_as_string (i); |
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442 strcpy (s + i * (nc+1), tstr.c_str ()); |
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443 } |
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444 |
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445 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
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446 (void*) s) >= 0; |
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447 |
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448 H5Dclose (data_hid); |
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449 H5Tclose (type_hid); |
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450 H5Sclose (space_hid); |
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451 return retval; |
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452 } |
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453 |
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454 bool |
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455 octave_char_matrix_str::load_hdf5 (hid_t loc_id, const char *name, |
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456 bool /* have_h5giterate_bug */) |
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457 { |
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458 hid_t data_hid = H5Dopen (loc_id, name); |
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459 hid_t space_hid = H5Dget_space (data_hid); |
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460 hsize_t rank = H5Sget_simple_extent_ndims (space_hid); |
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461 hid_t type_hid = H5Dget_type (data_hid); |
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462 |
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463 if (rank == 0) |
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464 { |
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465 // a single string: |
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466 int slen = H5Tget_size (type_hid); |
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467 if (slen < 0) |
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468 { |
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469 H5Tclose (type_hid); |
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470 H5Sclose (space_hid); |
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471 H5Dclose (data_hid); |
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472 return false; |
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473 } |
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474 else |
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475 { |
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476 OCTAVE_LOCAL_BUFFER (char, s, slen); |
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477 // create datatype for (null-terminated) string |
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478 // to read into: |
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479 hid_t st_id = H5Tcopy (H5T_C_S1); |
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480 H5Tset_size (st_id, slen); |
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481 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, |
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482 H5P_DEFAULT, (void *) s) < 0) |
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483 { |
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484 H5Tclose (st_id); |
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485 H5Tclose (type_hid); |
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486 H5Sclose (space_hid); |
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487 H5Dclose (data_hid); |
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488 return false; |
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489 } |
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490 |
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491 matrix = charMatrix (s); |
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492 |
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493 H5Tclose (st_id); |
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494 H5Tclose (type_hid); |
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495 H5Sclose (space_hid); |
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496 H5Dclose (data_hid); |
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497 return true; |
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498 } |
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499 } |
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500 else if (rank == 1) |
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501 { |
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502 // string vector |
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503 hsize_t elements, maxdim; |
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504 H5Sget_simple_extent_dims (space_hid, &elements, &maxdim); |
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505 int slen = H5Tget_size (type_hid); |
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506 if (slen < 0) |
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507 { |
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508 H5Tclose (type_hid); |
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509 H5Sclose (space_hid); |
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510 H5Dclose (data_hid); |
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511 return false; |
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512 } |
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513 else |
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514 { |
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515 // hdf5 string arrays store strings of all the |
|
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516 // same physical length (I think), which is |
|
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517 // slightly wasteful, but oh well. |
|
|
518 |
|
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519 OCTAVE_LOCAL_BUFFER (char, s, elements * slen); |
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|
520 |
|
|
521 // create datatype for (null-terminated) string |
|
|
522 // to read into: |
|
|
523 hid_t st_id = H5Tcopy (H5T_C_S1); |
|
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524 H5Tset_size (st_id, slen); |
|
|
525 |
|
|
526 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, |
|
|
527 H5P_DEFAULT, (void *) s) < 0) |
|
|
528 { |
|
|
529 H5Tclose (st_id); |
|
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530 H5Tclose (type_hid); |
|
|
531 H5Sclose (space_hid); |
|
|
532 H5Dclose (data_hid); |
|
|
533 return false; |
|
|
534 } |
|
|
535 |
|
|
536 charMatrix chm (elements, slen - 1); |
|
|
537 for (hsize_t i = 0; i < elements; ++i) |
|
|
538 { |
|
|
539 chm.insert (s + i*slen, i, 0); |
|
|
540 } |
|
|
541 |
|
|
542 matrix = chm; |
|
|
543 |
|
|
544 H5Tclose (st_id); |
|
|
545 H5Tclose (type_hid); |
|
|
546 H5Sclose (space_hid); |
|
|
547 H5Dclose (data_hid); |
|
|
548 return true; |
|
|
549 } |
|
|
550 } |
|
|
551 else |
|
|
552 { |
|
|
553 H5Tclose (type_hid); |
|
|
554 H5Sclose (space_hid); |
|
|
555 H5Dclose (data_hid); |
|
|
556 return false; |
|
|
557 } |
|
|
558 } |
|
|
559 #endif |
|
|
560 |
|
2376
|
561 /* |
|
|
562 ;;; Local Variables: *** |
|
|
563 ;;; mode: C++ *** |
|
|
564 ;;; End: *** |
|
|
565 */ |
