Mercurial > octave
view libinterp/corefcn/pager.h @ 33559:62fca924fe85 default tip @
doc: Update NEWS.10.md file.
* NEWS.10.md: Indent NEWS.10.md for clarity.
Add note about changes to colormap() functionality.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 09 May 2024 18:23:33 -0700 |
parents | 4b601ca024d5 |
children |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1993-2024 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 (octave_pager_h) #define octave_pager_h 1 #include "octave-config.h" #include <fstream> #include <iosfwd> #include <sstream> #include <string> class octave_value; class octave_value_list; OCTAVE_BEGIN_NAMESPACE(octave) class interpreter; class oprocstream; class OCTINTERP_API pager_buf : public std::stringbuf { public: pager_buf () : std::stringbuf (), m_diary_skip (0) { } OCTAVE_DISABLE_COPY_MOVE (pager_buf) ~pager_buf () = default; void flush_current_contents_to_diary (); void set_diary_skip (); protected: int sync (); private: std::size_t m_diary_skip; }; class OCTINTERP_API pager_stream : public std::ostream { public: pager_stream (); OCTAVE_DISABLE_COPY_MOVE (pager_stream) ~pager_stream (); void flush_current_contents_to_diary (); void set_diary_skip (); std::ostream& stream (); void reset (); private: pager_buf *m_pb; }; class OCTINTERP_API diary_buf : public std::stringbuf { public: OCTAVE_DEFAULT_CONSTRUCT_DELETE (diary_buf) OCTAVE_DISABLE_COPY_MOVE (diary_buf) protected: int sync (); }; class OCTINTERP_API diary_stream : public std::ostream { public: diary_stream (); OCTAVE_DISABLE_COPY_MOVE (diary_stream) ~diary_stream (); std::ostream& stream (); void reset (); private: diary_buf *m_db; }; extern OCTINTERP_API void flush_stdout (); class output_system { public: output_system (interpreter& interp); OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (output_system) ~output_system () = default; pager_stream& pager () { return m_pager_stream; } diary_stream& diary () { return m_diary_stream; } std::string diary_file_name () const { return m_diary_file_name; } std::string diary_file_name (const std::string& nm) { std::string val = m_diary_file_name; m_diary_file_name = nm.empty () ? "diary" : nm; return val; } octave_value PAGER (const octave_value_list& args, int nargout); std::string PAGER () const { return m_PAGER; } std::string PAGER (const std::string& s) { std::string val = m_PAGER; m_PAGER = s; return val; } octave_value PAGER_FLAGS (const octave_value_list& args, int nargout); std::string PAGER_FLAGS () const { return m_PAGER_FLAGS; } std::string PAGER_FLAGS (const std::string& s) { std::string val = m_PAGER_FLAGS; m_PAGER_FLAGS = s; return val; } octave_value page_output_immediately (const octave_value_list& args, int nargout); bool page_output_immediately () const { return m_page_output_immediately; } bool page_output_immediately (bool flag) { bool val = m_page_output_immediately; m_page_output_immediately = flag; return val; } octave_value page_screen_output (const octave_value_list& args, int nargout); bool page_screen_output () const { return m_page_screen_output; } bool page_screen_output (bool flag) { bool val = m_page_screen_output; m_page_screen_output = flag; return val; } bool write_to_diary_file () const { return m_write_to_diary_file; } bool write_to_diary_file (bool flag) { bool val = m_write_to_diary_file; m_write_to_diary_file = flag; return val; } bool really_flush_to_pager () const { return m_really_flush_to_pager; } bool really_flush_to_pager (bool flag) { bool val = m_really_flush_to_pager; m_really_flush_to_pager = flag; return val; } bool flushing_output_to_pager () const { return m_flushing_output_to_pager; } bool flushing_output_to_pager (bool flag) { bool val = m_flushing_output_to_pager; m_flushing_output_to_pager = flag; return val; } std::string pager_command () const; std::ofstream& external_diary_file () { return m_external_diary_file; } void reset (); void flush_stdout (); bool sync (const char *msg, int len); void clear_external_pager (); void open_diary (); void close_diary (); std::ostream& __stdout__ () { return m_pager_stream.stream (); } std::ostream& __diary__ () { return m_diary_stream.stream (); } private: interpreter& m_interpreter; pager_stream m_pager_stream; diary_stream m_diary_stream; // Our actual connection to the external pager. oprocstream *m_external_pager = nullptr; // The diary file. std::ofstream m_external_diary_file; // The name of the current diary file. std::string m_diary_file_name; // The shell command to run as the pager. std::string m_PAGER; // The options to pass to the pager. std::string m_PAGER_FLAGS; // TRUE means that if output is going to the pager, it is sent as soon // as it is available. Otherwise, it is buffered and only sent to the // pager when it is time to print another prompt. bool m_page_output_immediately; // TRUE means all output intended for the screen should be passed // through the pager. bool m_page_screen_output; // TRUE means we write to the diary file. bool m_write_to_diary_file; bool m_really_flush_to_pager; bool m_flushing_output_to_pager; void start_external_pager (); void do_sync (const char *msg, int len, bool bypass_pager); }; extern OCTINTERP_API std::ostream& __stdout__ (); extern OCTINTERP_API std::ostream& __diary__ (); OCTAVE_END_NAMESPACE(octave) #define octave_stdout (octave::__stdout__ ()) #define octave_diary (octave::__diary__ ()) #endif