Mercurial > octave
view liboctave/util/file-info.cc @ 33586:3216c01fd6a7 stable tip
fix dragging editor from main window into floating state (bug #65725)
* file-editor.cc (toplevel_changes): added missing call to original
slot octave_doc_widget::toplevel_changed
author | Torsten Lilge <ttl-octave@mailbox.org> |
---|---|
date | Tue, 14 May 2024 22:03:47 +0200 |
parents | 2e484f9f1f18 |
children |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2001-2024 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 (HAVE_CONFIG_H) # include "config.h" #endif #include <deque> #include <fstream> #include "file-info.h" #include "file-stat.h" #include "lo-error.h" #include "lo-sysdep.h" OCTAVE_BEGIN_NAMESPACE(octave) std::string file_info::get_line (std::size_t line) const { std::string retval; if (line == 0) return retval; if (line < m_offsets.size ()) { std::size_t bol = m_offsets[line-1]; std::size_t eol = m_offsets[line]; while (eol > 0 && eol > bol && (m_file_buf[eol-1] == '\n' || m_file_buf[eol-1] == '\r')) eol--; retval = m_file_buf.substr (bol, eol - bol); } return retval; } std::deque<std::string> file_info::get_lines (std::size_t line, std::size_t num_lines) const { std::deque<std::string> retval; for (std::size_t i = line; i < line+num_lines; i++) retval.push_back (get_line (i)); return retval; } // Read entire file called fname and return the contents as a string std::string file_info::snarf_file (const std::string& fname) { std::string retval; sys::file_stat fs (fname); if (! fs) (*current_liboctave_error_handler) ("no such file, '%s'", fname.c_str ()); std::size_t sz = fs.size (); std::ifstream file = sys::ifstream (fname.c_str (), std::ios::in | std::ios::binary); if (file) { std::string buf (sz+1, 0); file.read (&buf[0], sz+1); if (! file.eof ()) (*current_liboctave_error_handler) ("error reading file %s", fname.c_str ()); // Expected to read the entire file. retval = buf; } return retval; } std::vector<std::size_t> file_info::get_line_offsets (const std::string& buf) { std::deque<std::size_t> tmp_offsets; tmp_offsets.push_back (0); std::size_t len = buf.length (); for (std::size_t i = 0; i < len; i++) { char c = buf[i]; if (c == '\r' && ++i < len) { c = buf[i]; if (c == '\n') tmp_offsets.push_back (i+1); else tmp_offsets.push_back (i); } else if (c == '\n') tmp_offsets.push_back (i+1); } tmp_offsets.push_back (len-1); std::size_t n = tmp_offsets.size (); std::vector<std::size_t> retval (n); std::size_t i = 0; for (auto& elt : tmp_offsets) retval[i++] = elt; return retval; } OCTAVE_END_NAMESPACE(octave)