1 //////////////////////////////////////////////////////////////////////// 2 // 3 // Copyright (C) 1996-2021 The Octave Project Developers 4 // 5 // See the file COPYRIGHT.md in the top-level directory of this 6 // distribution or <https://octave.org/copyright/>. 7 // 8 // This file is part of Octave. 9 // 10 // Octave is free software: you can redistribute it and/or modify it 11 // under the terms of the GNU General Public License as published by 12 // the Free Software Foundation, either version 3 of the License, or 13 // (at your option) any later version. 14 // 15 // Octave is distributed in the hope that it will be useful, but 16 // WITHOUT ANY WARRANTY; without even the implied warranty of 17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 // GNU General Public License for more details. 19 // 20 // You should have received a copy of the GNU General Public License 21 // along with Octave; see the file COPYING. If not, see 22 // <https://www.gnu.org/licenses/>. 23 // 24 //////////////////////////////////////////////////////////////////////// 25 26 #if ! defined (octave_ov_colon_h) 27 #define octave_ov_colon_h 1 28 29 #include "octave-config.h" 30 31 #include <cstdlib> 32 33 #include <iosfwd> 34 #include <string> 35 36 #include "mx-base.h" 37 #include "str-vec.h" 38 39 #include "error.h" 40 #include "ov-base.h" 41 #include "ov-typeinfo.h" 42 43 class octave_value_list; 44 45 // A type to represent ':' as used for indexing. 46 47 class 48 octave_magic_colon : public octave_base_value 49 { 50 public: 51 octave_magic_colon(void)52 octave_magic_colon (void) 53 : octave_base_value () { } 54 octave_magic_colon(const octave_magic_colon &)55 octave_magic_colon (const octave_magic_colon&) 56 : octave_base_value () { } 57 58 ~octave_magic_colon (void) = default; 59 clone(void)60 octave_base_value * clone (void) const 61 { return new octave_magic_colon (*this); } empty_clone(void)62 octave_base_value * empty_clone (void) const 63 { return new octave_magic_colon (); } 64 65 idx_vector index_vector (bool /* require_integers */ = false) const { return idx_vector (':'); } 66 is_defined(void)67 bool is_defined (void) const { return true; } 68 is_constant(void)69 bool is_constant (void) const { return true; } 70 is_magic_colon(void)71 bool is_magic_colon (void) const { return true; } 72 73 void print (std::ostream& os, bool pr_as_read_syntax = false); 74 75 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; 76 77 private: 78 79 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA 80 }; 81 82 #endif 83