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1 // variables.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (_variables_h) |
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25 #define _variables_h 1 |
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26 |
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27 class istream; |
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28 class symbol_record; |
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29 class symbol_table; |
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30 class tree; |
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31 class tree_constant; |
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32 |
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33 struct builtin_mapper_functions; |
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34 struct builtin_text_functions; |
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35 struct builtin_general_functions; |
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36 struct builtin_string_variables; |
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37 |
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38 #ifndef SV_FUNCTION_TYPEDEFS |
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39 #define SV_FUNCTION_TYPEDEFS 1 |
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40 |
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41 typedef int (*sv_Function)(void); |
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42 |
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43 #endif |
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44 |
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45 extern void initialize_symbol_tables (void); |
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46 |
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47 extern int symbol_out_of_date (symbol_record *sr); |
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48 |
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49 extern void document_symbol (const char *name, const char *help); |
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50 |
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51 extern void install_builtin_mapper_function (builtin_mapper_functions *mf); |
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52 |
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53 extern void install_builtin_text_function (builtin_text_functions *tf); |
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54 |
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55 extern void install_builtin_general_function (builtin_general_functions *gf); |
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56 |
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57 extern void install_builtin_variable (builtin_string_variables *sv); |
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58 |
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59 extern void install_builtin_variable_as_function (const char *name, |
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60 tree_constant *val, |
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61 int protect = 0, |
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62 int eternal = 0); |
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63 |
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64 extern void bind_nargin_and_nargout (symbol_table *sym_tab, |
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65 int nargin, int nargout); |
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66 |
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67 extern void bind_builtin_variable (const char *, tree_constant *, |
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68 int protect = 0, int eternal = 0, |
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69 sv_Function f = (sv_Function) 0, |
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70 const char *help = (char *) 0); |
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71 |
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72 extern char *builtin_string_variable (const char *); |
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73 extern int builtin_real_scalar_variable (const char *, double&); |
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74 |
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75 extern void link_to_global_variable (symbol_record *sr); |
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76 extern void link_to_builtin_variable (symbol_record *sr); |
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77 extern void link_to_builtin_or_function (symbol_record *sr); |
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78 |
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79 extern void force_link_to_function (const char *s); |
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80 |
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81 extern int is_globally_visible (const char *nm); |
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82 |
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83 extern int extract_keyword (istream&, char *, char *); |
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84 extern int extract_keyword (istream&, char *, int&); |
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85 |
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86 extern void skip_comments (istream&); |
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87 extern int valid_identifier (char *); |
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88 extern int identifier_exists (char *); |
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89 extern int is_builtin_variable (const char *name); |
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90 extern tree *is_valid_function (tree_constant&, char *, int warn = 0); |
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91 extern int takes_correct_nargs (tree *, int, char *, int warn = 0); |
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92 extern char **make_name_list (void); |
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93 |
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94 // Symbol table for symbols at the top level. |
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95 extern symbol_table *top_level_sym_tab; |
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96 |
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97 // Symbol table for the current scope. |
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98 extern symbol_table *curr_sym_tab; |
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99 |
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100 // Symbol table for global symbols. |
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101 extern symbol_table *global_sym_tab; |
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102 |
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103 #endif |
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104 |
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105 /* |
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106 ;;; Local Variables: *** |
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107 ;;; mode: C++ *** |
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108 ;;; page-delimiter: "^/\\*" *** |
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109 ;;; End: *** |
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110 */ |
