Mercurial > octave
view liboctave/util/file-info.h @ 31221:f5755dbacd8d
maint: merge stable to default
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Wed, 31 Aug 2022 22:04:02 +0200 |
parents | 243b51ec9ff0 |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2001-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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_file_info_h) #define octave_file_info_h 1 #include "octave-config.h" #include <deque> #include <map> #include <string> #include <vector> #include "oct-time.h" namespace octave { class file_info { public: file_info (void) : m_file_buf (), m_offsets (), m_timestamp (static_cast<OCTAVE_TIME_T> (0)) { } file_info (const std::string& text, const sys::time& timestamp) : m_file_buf (text), m_offsets (get_line_offsets (m_file_buf)), m_timestamp (timestamp) { } file_info (const std::string& fname) : m_file_buf (snarf_file (fname)), m_offsets (get_line_offsets (m_file_buf)), m_timestamp () { } file_info (const file_info&) = default; file_info& operator = (const file_info&) = default; ~file_info (void) = default; OCTAVE_API std::string get_line (std::size_t line) const; OCTAVE_API std::deque<std::string> get_lines (std::size_t line, std::size_t num_lines) const; std::size_t num_lines (void) const { return m_offsets.size (); } std::string text (void) const { return m_file_buf; } std::vector<std::size_t> line_offsets (void) const { return m_offsets; } sys::time timestamp (void) const { return m_timestamp; } std::size_t size (void) const { return m_file_buf.length (); } private: // File contents as a string. std::string m_file_buf; // Offsets to line beginnings. std::vector<std::size_t> m_offsets; sys::time m_timestamp; // Read entire file called fname and return the contents as a string static OCTAVE_API std::string snarf_file (const std::string& fname); static OCTAVE_API std::vector<std::size_t> get_line_offsets (const std::string& buf); }; } #endif