Mercurial > octave
view libinterp/parse-tree/filepos.h @ 27766:0ca7f17de041
use file position object to track line and column info in lexer and parser
* filepos.h: New file.
* libinterp/parse-tree/module.mk: Update.
* lex.h, lex.ll (lexical_feedback::m_filepos): New member variable for
tracking file position.
(lexical_feedback::m_input_line_number,
lexical_feedback::m_current_input_column): Delete. Replace all uses
with operations on m_filepos.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Mon, 02 Dec 2019 18:20:28 -0600 |
parents | |
children | b442ec6dda5c |
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/* Copyright (C) 2019 John W. Eaton This file is part of Octave. Octave is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <https://www.gnu.org/licenses/>. */ #if ! defined (octave_filepos_h) #define octave_filepos_h 1 #include "octave-config.h" namespace octave { class filepos { public: filepos (int l = 1, int c = 1) : m_line (l), m_column (c) { } filepos (const filepos&) = default; filepos& operator = (const filepos&) = default; ~filepos (void) = default; void set (int l, int c) { m_line = l; m_column = c; } void line (int l) { m_line = l; } void column (int c) { m_column = c; } int line (void) const { return m_line; } int column (void) const { return m_column; } void increment_line (int val = 1) { m_line += val; } void increment_column (int val = 1) { m_column += val; } void decrement_line (int val = 1) { m_line -= val; } void decrement_column (int val = 1) { m_column -= val; } void next_line (void) { m_line++; m_column = 1; } private: int m_line; int m_column; }; } #endif