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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, 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 octave_function; |
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27 class symbol_record; |
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28 class symbol_table; |
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29 |
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30 class tree_identifier; |
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31 class tree_indirect_ref; |
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32 class octave_value; |
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33 class octave_value_list; |
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34 class octave_builtin; |
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35 class octave_mapper; |
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36 class string_vector; |
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37 |
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38 #include <string> |
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39 |
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40 #include "ov.h" |
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41 #include "ov-builtin.h" |
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42 #include "symtab.h" |
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43 |
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44 extern void initialize_symbol_tables (void); |
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45 |
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46 extern bool is_builtin_variable (const string&); |
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47 extern bool is_text_function_name (const string&); |
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48 extern bool is_mapper_function_name (const string&); |
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49 extern bool is_builtin_function_name (const string&); |
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50 extern bool is_globally_visible (const string&); |
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51 |
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52 extern octave_function * |
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53 is_valid_function (const octave_value&, const string& = string (), |
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54 bool warn = false); |
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55 |
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56 extern octave_function * |
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57 is_valid_function (const string&, const string& = string (), |
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58 bool warn = false); |
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59 |
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60 extern octave_function * |
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61 extract_function (const octave_value& arg, const string& warn_for, |
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62 const string& fname, const string& header, |
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63 const string& trailer); |
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64 |
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65 extern string_vector |
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66 get_struct_elts (const string& text); |
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67 |
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68 extern string_vector |
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69 generate_struct_completions (const string& text, string& prefix, |
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70 string& hint); |
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71 |
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72 extern bool |
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73 looks_like_struct (const string& text); |
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74 |
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75 extern bool lookup (symbol_record *s, bool exec_script = true); |
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76 |
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77 extern symbol_record * |
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78 lookup_by_name (const string& nm, bool exec_script = true); |
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79 |
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80 extern octave_value get_global_value (const string& nm); |
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81 |
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82 extern void set_global_value (const string& nm, const octave_value& val); |
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83 |
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84 extern string builtin_string_variable (const string&); |
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85 extern int builtin_real_scalar_variable (const string&, double&); |
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86 extern octave_value builtin_any_variable (const string&); |
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87 |
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88 extern void link_to_global_variable (symbol_record *sr); |
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89 extern void link_to_builtin_or_function (symbol_record *sr); |
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90 |
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91 extern void force_link_to_function (const string&); |
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92 |
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93 extern void bind_ans (const octave_value& val, bool print); |
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94 |
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95 extern void bind_global_error_variable (void); |
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96 |
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97 extern void clear_global_error_variable (void *); |
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98 |
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99 extern void |
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100 bind_builtin_constant (const string&, const octave_value&, |
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101 bool protect = false, bool eternal = false, |
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102 const string& help = string ()); |
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103 |
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104 extern void |
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105 bind_builtin_variable (const string&, const octave_value&, |
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106 bool protect = false, bool eternal = false, |
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107 symbol_record::change_function f = 0, |
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108 const string& help = string ()); |
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109 |
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110 // Symbol table for symbols at the top level. |
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111 extern symbol_table *top_level_sym_tab; |
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112 |
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113 // Symbol table for the current scope. |
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114 extern symbol_table *curr_sym_tab; |
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115 |
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116 // Symbol table for global symbols. |
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117 extern symbol_table *global_sym_tab; |
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118 |
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119 #endif |
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120 |
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121 /* |
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122 ;;; Local Variables: *** |
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123 ;;; mode: C++ *** |
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124 ;;; End: *** |
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125 */ |
