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annotate libinterp/corefcn/settings.cc @ 25443:2fa7cd178c4a

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new class for miscellaneous interpreter settings * libgui/src/editor-settings.h: Rename from octave-settings.h. Change all uses. * libgui/src/module.mk: Update. * settings.h, settings.cc: New files for miscellaneous interpreter settings and access functions. * libinterp/corefcn/module.mk: Update. * lex.h, lex.ll: Move static variables Vdisplay_tokens, Vtoken_count, and lexer_debug_flag to new settings class. Change all uses. (base_lexer::debug_flag, base_lexer::display_tokens, base_lexer::increment_token_count, base_lexer::lexer_debug): New functions. (F__display_tokens__, F__token_count__, F__lexer_debug_flag__): Move to settings.cc. * interpreter.h, interpreter.cc (interpreter::m_settings, interpreter::settings): New data member and access function.
author John W. Eaton <jwe@octave.org>
date Fri, 08 Jun 2018 18:04:18 -0400
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children 00f796120a6d
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25443
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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 (HAVE_CONFIG_H)
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24 # include "config.h"
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25 #endif
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26
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27 #include "defun.h"
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28 #include "interpreter.h"
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29 #include "ov.h"
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30 #include "ovl.h"
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31 #include "settings.h"
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32 #include "variables.h"
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33
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34 namespace octave
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35 {
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36 settings::settings (void)
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37 : m_display_tokens (false), m_token_count (0),
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38 m_lexer_debug_flag (false)
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39 { }
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40
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41 octave_value settings::display_tokens (const octave_value_list& args,
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42 int nargout)
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43 {
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44 return set_internal_variable (m_display_tokens, args, nargout,
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45 "__display_tokens__");
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46 }
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47
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48 octave_value settings::lexer_debug_flag (const octave_value_list& args,
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49 int nargout)
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50 {
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51 return set_internal_variable (m_lexer_debug_flag, args, nargout,
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52 "__lexer_debug_flag__");
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53 }
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54 }
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55
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56 DEFMETHOD (__display_tokens__, interp, args, nargout,
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57 doc: /* -*- texinfo -*-
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58 @deftypefn {} {} __display_tokens__ ()
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59 Query or set the internal variable that determines whether Octave's
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60 lexer displays tokens as they are read.
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61 @seealso{__lexer_debug_flag__, __token_count__}
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62 @end deftypefn */)
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63 {
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64 octave::settings& stgs = interp.get_settings ();
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65
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66 return stgs.display_tokens (args, nargout);
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67 }
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68
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69 DEFMETHOD (__token_count__, interp, , ,
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70 doc: /* -*- texinfo -*-
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71 @deftypefn {} {} __token_count__ ()
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72 Return the number of language tokens processed since Octave startup.
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73 @seealso{__lexer_debug_flag__, __display_tokens__}
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74 @end deftypefn */)
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75 {
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76 octave::settings& stgs = interp.get_settings ();
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77
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78 return octave_value (stgs.token_count ());
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79 }
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80
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81 DEFMETHOD (__lexer_debug_flag__, interp, args, nargout,
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82 doc: /* -*- texinfo -*-
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83 @deftypefn {} {@var{val} =} __lexer_debug_flag__ ()
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84 @deftypefnx {} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val})
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85 Query or set the internal flag that determines whether Octave's lexer prints
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86 debug information as it processes an expression.
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87 @seealso{__display_tokens__, __token_count__, __parse_debug_flag__}
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88 @end deftypefn */)
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89 {
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90 octave::settings& stgs = interp.get_settings ();
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91
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92 return stgs.lexer_debug_flag (args, nargout);
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93 }