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annotate libinterp/corefcn/settings.h @ 26325:4877f77d5e1d stable

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add necessary includes and forward decls in public header files (bug #55277) * load-save.h: Include ovl.h for full octave_value_list definition, delete forward decls that are now declared by inclusion. * oct-hist.h: Include ovl.h for full octave_value_list definition, add forward decl of octave::interpreter. * pager.h: Add forward decl of octave_value_list. * settings.h: Add forward decl of octave_value, include cstddef for size_t. * pt-tm-const.h: Include pt-mat.h for full octave::tree_matrix definition.
author Mike Miller <mtmiller@octave.org>
date Sun, 30 Dec 2018 13:26:33 -0800
parents 2fa7cd178c4a
children 00f796120a6d
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1 /*
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2
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3 Copyright (C) 2018 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
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9 the Free Software Foundation, either version 3 of the License, or
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10 (at your option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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, see
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19 <https://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (octave_settings_h)
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24 #define octave_settings_h 1
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25
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26 #include "octave-config.h"
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27
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28 #include <cstddef>
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29
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30 class octave_value;
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31 class octave_value_list;
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32
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33 namespace octave
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34 {
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35 // Most settings for the interpreter are stored in the classes which
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36 // they affect (intput_system, output_system, load_path, etc. Some
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37 // don't really fit anywhere else. For example, there is no single
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38 // lexer or parser object, so we store settings for those things
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39 // here.
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40
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41 class settings
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42 {
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43 public:
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44
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45 settings (void);
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46
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47 settings (const settings&) = delete;
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48
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49 settings& operator = (const settings&) = delete;
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50
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51 ~settings (void) = default;
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52
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53 octave_value display_tokens (const octave_value_list& args, int nargout);
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54
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55 bool display_tokens (void) const { return m_display_tokens; }
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56
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57 bool display_tokens (bool flag)
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58 {
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59 bool val = m_display_tokens;
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60 m_display_tokens = flag;
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61 return val;
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62 }
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63
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64 // Read only.
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65 size_t token_count (void) const { return m_token_count; }
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66
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67 void increment_token_count (void) { ++m_token_count; }
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68
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69 octave_value lexer_debug_flag (const octave_value_list& args, int nargout);
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70
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71 bool lexer_debug_flag (void) const { return m_lexer_debug_flag; }
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72
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73 bool lexer_debug_flag (bool flag)
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74 {
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75 bool val = m_lexer_debug_flag;
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76 m_lexer_debug_flag = flag;
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77 return val;
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78 }
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79
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80 private:
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81
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82 // Display tokens as they are processed, for debugging.
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83 bool m_display_tokens = false;
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84
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85 // Number of tokens processed since interpreter startup.
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86 size_t m_token_count = 0;
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87
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88 // Internal variable for lexer debugging state.
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89 bool m_lexer_debug_flag = false;
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90 };
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91 }
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92
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93 #endif