Mercurial > hg > octave-nkf
annotate src/pt-colon.h @ 10824:1e6664326d32
rsf2csf: Change first documentation line to active voice.
| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Tue, 27 Jul 2010 10:46:11 -0700 |
| parents | f3b65e1ae355 |
| children | fd0a3ac60b0e |
| rev | line source |
|---|---|
| 2980 | 1 /* |
| 2 | |
| 8920 | 3 Copyright (C) 1996, 1997, 2000, 2002, 2003, 2004, 2005, 2006, 2007, |
| 4 2008, 2009 John W. Eaton | |
| 2980 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2980 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2980 | 21 |
| 22 */ | |
| 23 | |
| 24 #if !defined (octave_tree_colon_h) | |
| 25 #define octave_tree_colon 1 | |
| 26 | |
| 27 #include <string> | |
| 28 | |
| 29 class tree_walker; | |
| 30 | |
| 31 class octave_value; | |
| 32 class octave_value_list; | |
| 33 class octave_lvalue; | |
| 34 | |
| 35 #include "pt-exp.h" | |
| 7336 | 36 #include "symtab.h" |
| 2980 | 37 |
| 38 // Colon expressions. | |
| 39 | |
| 40 class | |
| 41 tree_colon_expression : public tree_expression | |
| 42 { | |
| 43 public: | |
| 44 | |
| 45 tree_colon_expression (int l = -1, int c = -1) | |
| 2990 | 46 : tree_expression (l, c), op_base (0), op_limit (0), |
| 47 op_increment (0), save_base (false) { } | |
| 2980 | 48 |
| 49 tree_colon_expression (tree_expression *e, int l = -1, int c = -1) | |
| 2990 | 50 : tree_expression (l, c), op_base (e), op_limit (0), |
| 51 op_increment (0), save_base (false) { } | |
| 2980 | 52 |
| 5861 | 53 tree_colon_expression (tree_expression *bas, tree_expression *lim, |
| 10313 | 54 tree_expression *inc, int l = -1, int c = -1) |
| 5861 | 55 : tree_expression (l, c), op_base (bas), op_limit (lim), |
| 56 op_increment (inc), save_base (false) { } | |
| 57 | |
| 2980 | 58 ~tree_colon_expression (void) |
| 59 { | |
| 2990 | 60 if (! save_base) |
| 10313 | 61 delete op_base; |
| 2990 | 62 |
| 2980 | 63 delete op_limit; |
| 64 delete op_increment; | |
| 65 } | |
| 66 | |
| 4267 | 67 bool has_magic_end (void) const |
| 68 { | |
| 69 return ((op_base && op_base->has_magic_end ()) | |
| 10313 | 70 || (op_limit && op_limit->has_magic_end ()) |
| 71 || (op_increment && op_increment->has_magic_end ())); | |
| 4267 | 72 } |
| 73 | |
| 2990 | 74 void preserve_base (void) { save_base = true; } |
| 75 | |
| 2980 | 76 tree_colon_expression *append (tree_expression *t); |
| 77 | |
| 3933 | 78 bool rvalue_ok (void) const { return true; } |
| 2980 | 79 |
|
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8011
diff
changeset
|
80 octave_value rvalue1 (int nargout = 1); |
| 2980 | 81 |
| 82 octave_value_list rvalue (int nargout); | |
| 83 | |
|
8011
3100283874d7
improve backtrace error messages
John W. Eaton <jwe@octave.org>
parents:
7767
diff
changeset
|
84 void eval_error (const std::string& s) const; |
| 2980 | 85 |
| 86 tree_expression *base (void) { return op_base; } | |
| 87 | |
| 88 tree_expression *limit (void) { return op_limit; } | |
| 89 | |
| 90 tree_expression *increment (void) { return op_increment; } | |
| 91 | |
| 5066 | 92 int line (void) const; |
| 93 int column (void) const; | |
| 94 | |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
95 tree_expression *dup (symbol_table::scope_id scope, |
| 10313 | 96 symbol_table::context_id context) const; |
| 5861 | 97 |
| 2980 | 98 void accept (tree_walker& tw); |
| 99 | |
| 100 private: | |
| 101 | |
| 102 // The components of the expression. | |
| 103 tree_expression *op_base; | |
| 104 tree_expression *op_limit; | |
| 105 tree_expression *op_increment; | |
| 2988 | 106 |
| 2990 | 107 bool save_base; |
| 108 | |
| 5347 | 109 octave_value |
| 110 make_range (const Matrix& m_base, const Matrix& m_limit, | |
| 10313 | 111 const Matrix& m_increment, bool result_is_str, |
| 112 bool dq_str) const; | |
| 5347 | 113 |
| 114 octave_value | |
| 115 make_range (const octave_value& ov_base, const octave_value& ov_limit, | |
| 10313 | 116 const octave_value& ov_increment) const; |
| 5347 | 117 |
| 2988 | 118 // No copying! |
| 119 | |
| 120 tree_colon_expression (const tree_colon_expression&); | |
| 121 | |
| 122 tree_colon_expression& operator = (const tree_colon_expression&); | |
| 2980 | 123 }; |
| 124 | |
| 125 #endif |