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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__) |
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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 "error.h" |
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34 #include "oct-lvalue.h" |
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35 #include "ov-list.h" |
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36 #include "ov-struct.h" |
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37 #include "unwind-prot.h" |
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38 #include "variables.h" |
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39 |
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40 DEFINE_OCTAVE_ALLOCATOR(octave_struct); |
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41 |
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42 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA(octave_struct, "struct"); |
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43 |
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44 octave_value |
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45 octave_struct::do_struct_elt_index_op (const std::string& nm, |
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46 const octave_value_list& idx, |
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47 bool silent) |
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48 { |
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49 // XXX DO_ME XXX |
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50 return octave_value (); |
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51 } |
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52 |
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53 octave_value |
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54 octave_struct::do_struct_elt_index_op (const std::string& nm, bool silent) |
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55 { |
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56 octave_value retval; |
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57 |
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58 Pix idx = map.seek (nm); |
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59 |
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60 if (idx) |
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61 retval = map.contents (idx); |
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62 else if (! silent) |
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63 error ("structure has no member `%s'", nm.c_str ()); |
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64 |
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65 return retval; |
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66 } |
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67 |
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68 octave_lvalue |
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69 octave_struct::struct_elt_ref (octave_value *, const std::string& nm) |
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70 { |
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71 // XXX FIXME XXX -- struct array |
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72 return octave_lvalue (&map[nm](0)); |
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73 } |
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74 |
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75 void |
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76 octave_struct::print (std::ostream& os, bool) const |
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77 { |
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78 print_raw (os); |
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79 } |
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80 |
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81 void |
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82 octave_struct::print_raw (std::ostream& os, bool) const |
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83 { |
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84 // XXX FIXME XXX -- would be nice to print the output in some |
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85 // standard order. Maybe all substructures first, maybe |
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86 // alphabetize entries, etc. |
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87 |
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88 unwind_protect::begin_frame ("octave_struct_print"); |
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89 |
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90 unwind_protect_int (Vstruct_levels_to_print); |
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91 |
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92 if (Vstruct_levels_to_print-- > 0) |
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93 { |
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94 indent (os); |
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95 os << "{"; |
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96 newline (os); |
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97 |
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98 increment_indent_level (); |
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99 |
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100 int n = map.array_length (); |
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101 |
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102 for (Pix p = map.first (); p; map.next (p)) |
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103 { |
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104 std::string key = map.key (p); |
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105 octave_value_list val = map.contents (p); |
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106 |
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107 if (n == 1) |
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108 val(0).print_with_name (os, key); |
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109 else |
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110 { |
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111 octave_list tmp (val); |
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112 tmp.print_with_name (os, key); |
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113 } |
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114 } |
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115 |
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116 decrement_indent_level (); |
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117 |
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118 indent (os); |
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119 os << "}"; |
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120 newline (os); |
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121 } |
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122 else |
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123 { |
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124 os << " <structure>"; |
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125 newline (os); |
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126 } |
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127 |
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128 unwind_protect::run_frame ("octave_struct_print"); |
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129 } |
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130 |
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131 bool |
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132 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
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133 { |
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134 indent (os); |
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135 os << name << " ="; |
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136 newline (os); |
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137 return false; |
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138 } |
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139 |
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140 /* |
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141 ;;; Local Variables: *** |
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142 ;;; mode: C++ *** |
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143 ;;; End: *** |
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144 */ |
