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1 /* |
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_variables_h) |
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25 #define octave_variables_h 1 |
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26 |
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27 class octave_function; |
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28 class octave_user_function; |
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29 class symbol_record; |
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30 class symbol_table; |
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31 |
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32 class tree_identifier; |
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33 class octave_value; |
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34 class octave_value_list; |
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35 class octave_builtin; |
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36 class octave_mapper; |
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37 class string_vector; |
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38 |
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39 #include <climits> |
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40 #include <cfloat> |
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41 |
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42 #include <string> |
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43 |
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44 #include "ov.h" |
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45 #include "ov-builtin.h" |
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46 #include "symtab.h" |
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47 |
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48 extern bool at_top_level (void); |
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49 |
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50 extern void initialize_symbol_tables (void); |
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51 |
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52 extern bool is_command_name (const std::string&); |
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53 |
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54 // The next three are here temporarily... |
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55 extern bool is_marked_as_rawcommand (const std::string& s); |
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56 extern void mark_as_rawcommand (const std::string& s); |
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57 extern void unmark_rawcommand (const std::string& s); |
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58 |
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59 extern bool is_rawcommand_name (const std::string&); |
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60 extern bool is_mapper_function_name (const std::string&); |
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61 extern bool is_builtin_function_name (const std::string&); |
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62 extern bool is_globally_visible (const std::string&); |
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63 |
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64 extern octave_function * |
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65 is_valid_function (const octave_value&, const std::string& = std::string (), |
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66 bool warn = false); |
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67 |
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68 extern octave_function * |
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69 is_valid_function (const std::string&, const std::string& = std::string (), |
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70 bool warn = false); |
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71 |
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72 extern octave_function * |
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73 extract_function (const octave_value& arg, const std::string& warn_for, |
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74 const std::string& fname, const std::string& header, |
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75 const std::string& trailer); |
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76 |
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77 extern string_vector |
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78 get_struct_elts (const std::string& text); |
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79 |
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80 extern string_vector |
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81 generate_struct_completions (const std::string& text, std::string& prefix, |
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82 std::string& hint); |
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83 |
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84 extern bool |
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85 looks_like_struct (const std::string& text); |
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86 |
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87 extern int |
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88 symbol_exist (const std::string& name, const std::string& type = "any"); |
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89 |
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90 extern std::string |
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91 unique_symbol_name (const std::string& basename); |
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92 |
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93 extern bool |
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94 fcn_out_of_date (octave_function *fcn, const std::string& ff, time_t tp); |
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95 |
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96 extern bool lookup (symbol_record *s, bool exec_script = true); |
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97 |
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98 extern symbol_record * |
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99 lookup_by_name (const std::string& nm, bool exec_script = true); |
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100 |
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101 extern octave_value lookup_function (const std::string& nm); |
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102 |
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103 extern octave_value lookup_user_function (const std::string& nm); |
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104 |
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105 extern octave_value lookup_function_handle (const std::string& nm); |
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106 |
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107 extern octave_value |
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108 get_global_value (const std::string& nm, bool silent = false); |
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109 |
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110 extern void set_global_value (const std::string& nm, const octave_value& val); |
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111 |
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112 extern octave_value |
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113 set_internal_variable (bool& var, const octave_value_list& args, |
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114 int nargout, const char *nm); |
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115 |
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116 extern octave_value |
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117 set_internal_variable (char& var, const octave_value_list& args, |
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118 int nargout, const char *nm); |
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119 |
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120 extern octave_value |
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121 set_internal_variable (int& var, const octave_value_list& args, |
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122 int nargout, const char *nm, |
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123 int minval = INT_MIN, int maxval = INT_MAX); |
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124 |
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125 extern octave_value |
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126 set_internal_variable (double& var, const octave_value_list& args, |
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127 int nargout, const char *nm, |
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128 double minval = DBL_MIN, double maxval = DBL_MAX); |
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129 |
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130 extern octave_value |
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131 set_internal_variable (std::string& var, const octave_value_list& args, |
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132 int nargout, const char *nm, bool empty_ok = true); |
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133 |
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134 #define SET_INTERNAL_VARIABLE(NM) \ |
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135 set_internal_variable (V ## NM, args, nargout, #NM) |
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136 |
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137 #define SET_NONEMPTY_INTERNAL_STRING_VARIABLE(NM) \ |
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138 set_internal_variable (V ## NM, args, nargout, #NM, false) |
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139 |
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140 #define SET_INTERNAL_VARIABLE_WITH_LIMITS(NM, MINVAL, MAXVAL) \ |
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141 set_internal_variable (V ## NM, args, nargout, #NM, MINVAL, MAXVAL) |
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142 |
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143 extern std::string builtin_string_variable (const std::string&); |
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144 extern int builtin_real_scalar_variable (const std::string&, double&); |
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145 extern octave_value builtin_any_variable (const std::string&); |
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146 |
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147 extern void link_to_global_variable (symbol_record *sr); |
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148 extern void link_to_builtin_or_function (symbol_record *sr); |
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149 |
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150 extern void force_link_to_function (const std::string&); |
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151 |
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152 extern void bind_ans (const octave_value& val, bool print); |
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153 |
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154 extern void |
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155 bind_internal_variable (const std::string& fname, const octave_value& val); |
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156 |
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157 extern void mlock (const std::string&); |
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158 extern void munlock (const std::string&); |
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159 extern bool mislocked (const std::string&); |
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160 |
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161 extern bool clear_function (const std::string& nm); |
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162 extern bool clear_variable (const std::string& nm); |
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163 extern bool clear_symbol (const std::string& nm); |
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164 |
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165 // Symbol table for symbols at the top level. |
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166 extern symbol_table *top_level_sym_tab; |
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167 |
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168 // Symbol table for the current scope. |
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169 extern symbol_table *curr_sym_tab; |
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170 |
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171 // Symbol table for the current caller scope. |
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172 extern symbol_table *curr_caller_sym_tab; |
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173 |
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174 // Symbol table for global symbols. |
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175 extern symbol_table *global_sym_tab; |
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176 |
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177 // Symbol table for functions and built-in symbols. |
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178 extern symbol_table *fbi_sym_tab; |
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179 |
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180 #endif |
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181 |
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182 /* |
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183 ;;; Local Variables: *** |
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184 ;;; mode: C++ *** |
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185 ;;; End: *** |
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186 */ |
