Mercurial > octave-nkf
annotate libinterp/parse-tree/pt-misc.h @ 20624:7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
* NEWS: Announce change:
* lex.ll: Define NUMBIN to be 0[bB] followed by 0,1, or '_'.
Define NUMBER to be NUMREAL|NUMHEX|NUMBIN.
*lex.ll (looks_like_bin): New function to detect 0[bB] prefix.
*lex.ll (handle_numbe): Call looks_like_bin() and if found then convert
binary string to double.
* parser.tst: Add tests for new behavior.
| author | Rik <rik@octave.org> |
|---|---|
| date | Fri, 09 Oct 2015 18:52:58 -0700 |
| parents | 4197fc428c7d |
| children |
| rev | line source |
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| 577 | 1 /* |
| 2 | |
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3 Copyright (C) 1994-2015 John W. Eaton |
| 577 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 577 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 577 | 20 |
| 21 */ | |
| 22 | |
|
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23 #if !defined (octave_pt_misc_h) |
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24 #define octave_pt_misc_h 1 |
| 577 | 25 |
| 5848 | 26 class Cell; |
| 27 | |
| 2982 | 28 class octave_value; |
| 29 class octave_value_list; | |
| 577 | 30 |
| 2982 | 31 class tree_identifier; |
| 32 class tree_index_expression; | |
| 33 class tree_va_return_list; | |
| 1588 | 34 |
| 2982 | 35 class tree_walker; |
| 577 | 36 |
| 4219 | 37 #include "base-list.h" |
| 6215 | 38 #include "pt-decl.h" |
| 7336 | 39 #include "symtab.h" |
| 4219 | 40 |
| 577 | 41 // Parameter lists. Used to hold the list of input and output |
| 42 // parameters in a function definition. Elements are identifiers | |
| 43 // only. | |
| 44 | |
| 45 class | |
| 6215 | 46 tree_parameter_list : public octave_base_list<tree_decl_elt *> |
| 577 | 47 { |
| 48 public: | |
| 2124 | 49 |
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50 enum in_or_out |
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51 { |
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52 in = 1, |
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53 out = 2 |
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54 }; |
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55 |
| 1227 | 56 tree_parameter_list (void) |
| 4219 | 57 : marked_for_varargs (0) { } |
| 632 | 58 |
| 6215 | 59 tree_parameter_list (tree_decl_elt *t) |
| 4219 | 60 : marked_for_varargs (0) { append (t); } |
| 577 | 61 |
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62 tree_parameter_list (tree_identifier *id) |
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63 : marked_for_varargs (0) { append (new tree_decl_elt (id)); } |
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64 |
| 1740 | 65 ~tree_parameter_list (void); |
| 577 | 66 |
| 67 void mark_as_formal_parameters (void); | |
| 68 | |
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69 bool validate (in_or_out type); |
| 577 | 70 |
| 3933 | 71 bool takes_varargs (void) const { return marked_for_varargs != 0; } |
| 577 | 72 |
| 3933 | 73 bool varargs_only (void) { return (marked_for_varargs < 0); } |
| 577 | 74 |
| 4466 | 75 void initialize_undefined_elements (const std::string& warnfor, |
| 10313 | 76 int nargout, const octave_value& val); |
| 1093 | 77 |
| 2086 | 78 void define_from_arg_vector (const octave_value_list& args); |
| 577 | 79 |
| 4219 | 80 void undefine (void); |
| 3239 | 81 |
| 1827 | 82 bool is_defined (void); |
| 577 | 83 |
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84 std::list<std::string> variable_names (void) const; |
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85 |
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86 octave_value_list convert_to_const_vector (int nargout, |
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87 const Cell& varargout); |
| 577 | 88 |
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89 tree_parameter_list *dup (symbol_table::scope_id scope, |
| 10313 | 90 symbol_table::context_id context) const; |
| 5861 | 91 |
| 2124 | 92 void accept (tree_walker& tw); |
| 581 | 93 |
| 577 | 94 private: |
| 2124 | 95 |
| 577 | 96 int marked_for_varargs; |
| 2988 | 97 |
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98 void mark_varargs (void) { marked_for_varargs = 1; } |
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99 |
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100 void mark_varargs_only (void) { marked_for_varargs = -1; } |
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101 |
| 2988 | 102 // No copying! |
| 103 | |
| 104 tree_parameter_list (const tree_parameter_list&); | |
| 105 | |
| 106 tree_parameter_list& operator = (const tree_parameter_list&); | |
| 577 | 107 }; |
| 108 | |
| 109 // Return lists. Used to hold the right hand sides of multiple | |
| 110 // assignment expressions. | |
| 111 | |
| 112 class | |
| 4219 | 113 tree_return_list : public octave_base_list<tree_index_expression *> |
| 577 | 114 { |
| 115 public: | |
| 2124 | 116 |
| 4219 | 117 tree_return_list (void) { } |
| 1227 | 118 |
| 4219 | 119 tree_return_list (tree_index_expression *t) { append (t); } |
| 577 | 120 |
| 1740 | 121 ~tree_return_list (void); |
| 581 | 122 |
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123 tree_return_list *dup (symbol_table::scope_id scope, |
| 10313 | 124 symbol_table::context_id context) const; |
| 5861 | 125 |
| 2124 | 126 void accept (tree_walker& tw); |
| 2988 | 127 |
| 128 private: | |
| 129 | |
| 130 // No copying! | |
| 131 | |
| 132 tree_return_list (const tree_return_list&); | |
| 133 | |
| 134 tree_return_list& operator = (const tree_return_list&); | |
| 577 | 135 }; |
| 136 | |
| 723 | 137 class |
| 4219 | 138 tree_va_return_list : public octave_base_list<octave_value> |
| 723 | 139 { |
| 140 public: | |
| 2124 | 141 |
| 4219 | 142 tree_va_return_list (void) { } |
| 1269 | 143 |
| 144 ~tree_va_return_list (void) { } | |
| 2988 | 145 |
| 146 private: | |
| 147 | |
| 148 // No copying! | |
| 149 | |
| 150 tree_va_return_list (const tree_va_return_list&); | |
| 151 | |
| 152 tree_va_return_list& operator = (const tree_va_return_list&); | |
| 723 | 153 }; |
| 154 | |
| 577 | 155 #endif |