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1 /* |
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2 |
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3 Copyright (C) 1996 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 (octave_variables_h) |
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24 #define octave_variables_h 1 |
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25 |
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26 class symbol_record; |
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27 class symbol_table; |
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28 |
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29 class tree_fvc; |
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30 class tree_constant; |
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31 class Octave_object; |
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32 class string_vector; |
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33 |
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34 #include <string> |
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35 |
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529
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36 struct builtin_mapper_function; |
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37 |
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38 typedef int (*sv_Function)(void); |
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39 |
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40 struct builtin_variable |
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41 { |
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42 builtin_variable (const string& n, tree_constant *v, int iaf, int p, |
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43 int e, sv_Function svf, const string& h) |
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44 : name (n), value (v), install_as_function (iaf), protect (p), |
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45 eternal (e), sv_function (svf), help_string (h) { } |
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46 |
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47 string name; |
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48 tree_constant *value; |
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49 int install_as_function; |
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50 int protect; |
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51 int eternal; |
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52 sv_Function sv_function; |
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53 string help_string; |
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54 }; |
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55 |
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56 typedef Octave_object (*Octave_builtin_fcn)(const Octave_object&, int); |
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57 |
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58 struct builtin_function |
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59 { |
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60 builtin_function (const string& n, int itf, Octave_builtin_fcn f, |
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61 const string& h) |
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62 : name (n), is_text_fcn (itf), fcn (f), help_string (h) { } |
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63 |
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64 string name; |
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65 int is_text_fcn; |
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66 Octave_builtin_fcn fcn; |
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67 string help_string; |
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68 }; |
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69 |
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70 extern void initialize_symbol_tables (void); |
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71 |
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72 extern bool lookup (symbol_record *s, int exec_script = 1); |
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73 |
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74 extern symbol_record *lookup_by_name (const string& nm, int exec_script = 1); |
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75 |
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76 extern string get_help_from_file (const string& f); |
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77 |
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78 extern string builtin_string_variable (const string&); |
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79 extern int builtin_real_scalar_variable (const string&, double&); |
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80 extern tree_constant builtin_any_variable (const string&); |
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81 |
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82 extern void link_to_global_variable (symbol_record *sr); |
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83 extern void link_to_builtin_variable (symbol_record *sr); |
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84 extern void link_to_builtin_or_function (symbol_record *sr); |
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85 |
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86 extern void force_link_to_function (const string&); |
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87 |
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88 extern bool is_builtin_variable (const string&); |
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89 extern bool is_text_function_name (const string&); |
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90 extern bool is_globally_visible (const string&); |
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91 |
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92 extern tree_fvc *is_valid_function (const tree_constant&, const string&, |
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93 int warn = 0); |
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94 |
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95 extern string_vector make_name_list (void); |
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96 |
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97 extern void install_builtin_mapper (const builtin_mapper_function& mf); |
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98 |
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99 extern void install_builtin_function (const builtin_function& gf); |
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100 |
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101 extern void install_builtin_variable (const builtin_variable& v); |
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102 |
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103 extern void |
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104 install_builtin_variable_as_function |
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105 (const string& name, tree_constant *val, int protect = 0, |
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106 int eternal = 0, const string& help = string ()); |
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107 |
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108 extern void alias_builtin (const string& alias, const string& name); |
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109 |
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110 #if 0 |
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111 extern void bind_nargin_and_nargout (symbol_table *sym_tab, |
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112 int nargin, int nargout); |
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113 #endif |
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114 |
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115 extern void bind_ans (const tree_constant& val, int print); |
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116 |
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117 extern void bind_global_error_variable (void); |
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118 |
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119 extern void clear_global_error_variable (void *); |
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120 |
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121 extern void bind_builtin_variable (const string&, tree_constant *, |
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122 int protect = 0, int eternal = 0, |
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123 sv_Function f = (sv_Function) 0, |
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124 const string& help = string ()); |
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125 |
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126 extern void bind_builtin_variable (const string&, const tree_constant&, |
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127 int protect = 0, int eternal = 0, |
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128 sv_Function f = (sv_Function) 0, |
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129 const string& help = string ()); |
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130 |
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131 extern void install_builtin_variables (void); |
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132 |
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133 extern string maybe_add_default_load_path (const string& p); |
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134 |
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135 extern string octave_lib_dir (void); |
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136 extern string octave_arch_lib_dir (void); |
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137 extern string octave_fcn_file_dir (void); |
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138 extern string octave_bin_dir (void); |
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139 extern string default_exec_path (void); |
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140 extern string default_path (void); |
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141 extern string default_info_file (void); |
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142 extern string default_info_prog (void); |
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143 extern string default_editor (void); |
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144 extern string get_local_site_defaults (void); |
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145 extern string get_site_defaults (void); |
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146 |
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147 // Symbol table for symbols at the top level. |
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148 extern symbol_table *top_level_sym_tab; |
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149 |
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150 // Symbol table for the current scope. |
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151 extern symbol_table *curr_sym_tab; |
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152 |
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153 // Symbol table for global symbols. |
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154 extern symbol_table *global_sym_tab; |
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155 |
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156 #endif |
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157 |
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158 /* |
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159 ;;; Local Variables: *** |
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160 ;;; mode: C++ *** |
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161 ;;; End: *** |
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162 */ |
