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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 "oct-obj.h" |
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33 |
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2970
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34 octave_allocator |
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35 octave_value_list::allocator (sizeof (octave_value_list)); |
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36 |
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37 bool |
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38 octave_value_list::valid_scalar_indices (void) const |
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39 { |
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40 int n = data.length (); |
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41 |
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42 for (int i = 0; i < n; i++) |
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43 if (! data(i).valid_as_scalar_index ()) |
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44 return false; |
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45 |
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46 return true; |
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47 } |
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48 |
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49 octave_value_list& |
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50 octave_value_list::prepend (const octave_value& val) |
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51 { |
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52 int n = length (); |
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53 |
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54 resize (n + 1); |
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55 |
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56 while (n > 0) |
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57 { |
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58 elem (n) = elem (n - 1); |
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59 n--; |
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60 } |
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61 |
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62 elem (0) = val; |
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63 |
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64 return *this; |
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65 } |
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66 |
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67 octave_value_list& |
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68 octave_value_list::append (const octave_value& val) |
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69 { |
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70 int n = length (); |
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71 |
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72 resize (n + 1); |
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73 |
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74 elem (n) = val; |
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75 |
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76 return *this; |
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77 } |
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78 |
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79 octave_value_list& |
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80 octave_value_list::append (const octave_value_list& lst) |
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81 { |
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82 int len = length (); |
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83 int lst_len = lst.length (); |
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84 |
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85 resize (len + lst_len); |
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86 |
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87 for (int i = 0; i < lst_len; i++) |
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88 elem (len + i) = lst (i); |
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89 |
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90 return *this; |
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91 } |
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92 |
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93 octave_value_list& |
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94 octave_value_list::reverse (void) |
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95 { |
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96 int n = length (); |
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97 |
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98 for (int i = 0; i < n / 2; i++) |
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99 { |
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100 octave_value tmp = elem (i); |
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101 elem (i) = elem (n - i - 1); |
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102 elem (n - i - 1) = tmp; |
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103 } |
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104 |
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105 return *this; |
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106 } |
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107 |
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108 octave_value_list |
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109 octave_value_list::splice (int offset, int rep_length, |
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110 const octave_value_list& lst) const |
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111 { |
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112 octave_value_list retval; |
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113 |
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114 int len = length (); |
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115 |
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116 if (offset < 0 || offset >= len) |
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117 { |
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118 if (! (rep_length == 0 && offset == len)) |
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119 { |
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120 error ("octave_value_list::splice: invalid OFFSET"); |
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121 return retval; |
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122 } |
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123 } |
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124 |
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125 if (rep_length < 0 || rep_length + offset > len) |
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126 { |
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127 error ("octave_value_list::splice: invalid LENGTH"); |
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128 return retval; |
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129 } |
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130 |
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131 int lst_len = lst.length (); |
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132 |
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133 int new_len = len - rep_length + lst_len; |
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134 |
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135 retval.resize (new_len); |
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136 |
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137 int k = 0; |
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138 |
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139 for (int i = 0; i < offset; i++) |
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140 retval(k++) = elem (i); |
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141 |
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142 for (int i = 0; i < lst_len; i++) |
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143 retval(k++) = lst(i); |
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144 |
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145 for (int i = offset + rep_length; i < len; i++) |
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146 retval(k++) = elem (i); |
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147 |
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148 return retval; |
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149 } |
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150 |
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151 octave_value_list |
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152 octave_value_list::index (idx_vector& i, int resize_ok) const |
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153 { |
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154 return octave_value_list (data.index (i, resize_ok, octave_value ())); |
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155 } |
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156 |
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157 octave_value_list& |
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158 octave_value_list::assign (const idx_vector& i, |
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159 const octave_value_list& rhs) |
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160 { |
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161 data.set_index (i); |
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162 ::assign (data, rhs.data); |
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163 return *this; |
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164 } |
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165 |
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166 bool |
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167 octave_value_list::all_strings_p (void) const |
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168 { |
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169 int n = length (); |
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170 |
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171 for (int i = 0; i < n; i++) |
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172 if (! elem(i).is_string ()) |
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173 return 0; |
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174 |
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175 return 1; |
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176 } |
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177 |
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178 string_vector |
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179 octave_value_list::make_argv (const std::string& fcn_name) const |
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180 { |
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181 string_vector argv; |
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182 |
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183 if (all_strings_p ()) |
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184 { |
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185 int len = length (); |
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186 |
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187 int total_nr = 0; |
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188 |
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189 for (int i = 0; i < len; i++) |
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190 { |
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191 // An empty std::string ("") has zero columns and zero rows (a |
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192 // change that was made for Matlab contemptibility. |
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193 |
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194 int n = elem(i).rows (); |
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195 |
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196 total_nr += n ? n : 1; |
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197 } |
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198 |
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199 argv.resize (total_nr+1); |
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200 |
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201 argv[0] = fcn_name; |
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202 |
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203 int k = 1; |
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204 for (int i = 0; i < len; i++) |
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205 { |
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206 int nr = elem(i).rows (); |
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207 |
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208 if (nr < 2) |
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209 argv[k++] = elem(i).string_value (); |
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210 else |
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211 { |
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212 string_vector tmp = elem(i).all_strings (); |
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213 |
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214 for (int j = 0; j < nr; j++) |
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215 argv[k++] = tmp[j]; |
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216 } |
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217 } |
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218 } |
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219 else |
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220 error ("%s: expecting all arguments to be strings", fcn_name.c_str ()); |
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221 |
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222 return argv; |
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223 } |
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224 |
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225 /* |
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226 ;;; Local Variables: *** |
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227 ;;; mode: C++ *** |
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228 ;;; End: *** |
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229 */ |
