Mercurial > octave
view libinterp/corefcn/input.h @ 23457:21baad6b35c4
maint: Use C++11 nullptr rather than 0 or NULL when possible.
* FigureWindow.h, Logger.cc, Menu.cc, MouseModeActionGroup.h, Object.h,
ObjectFactory.cc, ObjectProxy.h, color-picker.h, documentation-dock-widget.h,
files-dock-widget.h, find-files-dialog.h, history-dock-widget.h,
file-editor-tab.cc, file-editor.cc, file-editor.h, find-dialog.h,
main-window.cc, main-window.h, octave-dock-widget.h, parser.cc, parser.h,
webinfo.h, resource-manager.cc, shortcut-manager.cc, shortcut-manager.h,
terminal-dock-widget.h, welcome-wizard.cc, welcome-wizard.h, workspace-model.h,
workspace-view.h, __magick_read__.cc, call-stack.cc, call-stack.h, cdisplay.c,
display.cc, dlmread.cc, dynamic-ld.cc, ft-text-renderer.cc, gl2ps-print.cc,
graphics.cc, graphics.in.h, input.h, interpreter.cc, interpreter.h, ls-hdf5.cc,
mex.cc, mxarray.in.h, oct-errno.in.cc, oct-fstrm.cc, oct-iostrm.h,
oct-procbuf.cc, oct-stdstrm.h, oct-stream.cc, oct-stream.h, octave-link.cc,
pager.cc, pr-output.cc, profiler.h, qz.cc, sighandlers.cc, strfns.cc,
symtab.cc, symtab.h, typecast.cc, urlwrite.cc, variables.cc, __eigs__.cc,
__init_fltk__.cc, __ode15__.cc, colamd.cc, ov-base-int.cc, ov-base.cc,
ov-bool-mat.cc, ov-bool-sparse.cc, ov-builtin.cc, ov-class.cc, ov-classdef.cc,
ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc,
ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-java.cc, ov-java.h, ov-lazy-idx.cc,
ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc,
ov-str-mat.cc, ov-struct.cc, ov-usr-fcn.h, octave.cc, octave.h, bp-table.cc,
jit-ir.cc, jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h, lex.h, pt-arg-list.cc,
pt-arg-list.h, pt-array-list.h, pt-cell.h, pt-classdef.h, pt-colon.cc,
pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-idx.h, pt-jit.cc, pt-jit.h,
pt-loop.h, pt-mat.h, pt-select.h, pt.h, CSparse.cc, dSparse.cc, DASPK.cc,
DASRT.cc, DASSL.cc, oct-fftw.cc, oct-rand.cc, oct-spparms.cc, child-list.cc,
file-ops.cc, mach-info.cc, oct-env.cc, oct-time.cc, cmd-edit.cc, cmd-hist.cc,
oct-locbuf.cc, oct-shlib.cc, pathsearch.cc, singleton-cleanup.cc,
unwind-prot.h, url-transfer.cc:
Use C++11 nullptr rather than 0 or NULL when possible.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 28 Apr 2017 13:19:12 -0700 |
parents | cd4e1ee28716 |
children | be7b884ac589 |
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/* Copyright (C) 1993-2017 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 <http://www.gnu.org/licenses/>. */ // Use the GNU readline library for command line editing and hisory. #if ! defined (octave_input_h) #define octave_input_h 1 #include "octave-config.h" #include <cstdio> #include <string> #include "oct-refcount.h" #include "oct-time.h" #include "ovl.h" #include "pager.h" class octave_value; namespace octave { class base_lexer; } extern OCTINTERP_API FILE * get_input_from_stdin (void); // TRUE after a call to completion_matches. extern bool octave_completion_matches_called; // TRUE if the plotting system has requested a call to drawnow at // the next user prompt. extern OCTINTERP_API bool Vdrawnow_requested; // TRUE if we are in debugging mode. extern OCTINTERP_API bool Vdebugging; // TRUE if we are not executing a command direct from debug> prompt. extern OCTINTERP_API bool Vtrack_line_num; extern std::string find_indexed_expression (const std::string& text); extern void initialize_command_input (void); extern bool octave_yes_or_no (const std::string& prompt); extern octave_value do_keyboard (const octave_value_list& args = octave_value_list ()); extern void remove_input_event_hook_functions (void); extern void set_default_prompts (void); extern std::string VPS4; extern char Vfilemarker; enum echo_state { ECHO_OFF = 0, ECHO_SCRIPTS = 1, ECHO_FUNCTIONS = 2, ECHO_CMD_LINE = 4 }; extern int Vecho_executing_commands; extern octave::sys::time Vlast_prompt_time; namespace octave { class base_reader { public: friend class input_reader; base_reader (octave::base_lexer *lxr) : count (1), pflag (0), lexer (lxr) { } base_reader (const base_reader& x) : count (1), pflag (x.pflag), lexer (x.lexer) { } virtual ~base_reader (void) = default; virtual std::string get_input (bool& eof) = 0; virtual std::string input_source (void) const { return in_src; } void reset (void) { promptflag (1); } void increment_promptflag (void) { pflag++; } void decrement_promptflag (void) { pflag--; } int promptflag (void) const { return pflag; } int promptflag (int n) { int retval = pflag; pflag = n; return retval; } std::string octave_gets (bool& eof); virtual bool reading_fcn_file (void) const; virtual bool reading_classdef_file (void) const; virtual bool reading_script_file (void) const; virtual bool input_from_terminal (void) const { return false; } virtual bool input_from_file (void) const { return false; } virtual bool input_from_eval_string (void) const { return false; } private: octave::refcount<int> count; int pflag; octave::base_lexer *lexer; void do_input_echo (const std::string&) const; static const std::string in_src; }; class terminal_reader : public base_reader { public: terminal_reader (octave::base_lexer *lxr = nullptr) : base_reader (lxr) { } std::string get_input (bool& eof); std::string input_source (void) const { return in_src; } bool input_from_terminal (void) const { return true; } private: static const std::string in_src; }; class file_reader : public base_reader { public: file_reader (FILE *f_arg, octave::base_lexer *lxr = nullptr) : base_reader (lxr), file (f_arg) { } std::string get_input (bool& eof); std::string input_source (void) const { return in_src; } bool input_from_file (void) const { return true; } private: FILE *file; static const std::string in_src; }; class eval_string_reader : public base_reader { public: eval_string_reader (const std::string& str, octave::base_lexer *lxr = nullptr) : base_reader (lxr), eval_string (str) { } std::string get_input (bool& eof); std::string input_source (void) const { return in_src; } bool input_from_eval_string (void) const { return true; } private: std::string eval_string; static const std::string in_src; }; class input_reader { public: input_reader (octave::base_lexer *lxr = nullptr) : rep (new terminal_reader (lxr)) { } input_reader (FILE *file, octave::base_lexer *lxr = nullptr) : rep (new file_reader (file, lxr)) { } input_reader (const std::string& str, octave::base_lexer *lxr = nullptr) : rep (new eval_string_reader (str, lxr)) { } input_reader (const input_reader& ir) { rep = ir.rep; rep->count++; } input_reader& operator = (const input_reader& ir) { if (&ir != this) { rep = ir.rep; rep->count++; } return *this; } ~input_reader (void) { if (--rep->count == 0) delete rep; } void reset (void) { return rep->reset (); } void increment_promptflag (void) { rep->increment_promptflag (); } void decrement_promptflag (void) { rep->decrement_promptflag (); } int promptflag (void) const { return rep->promptflag (); } int promptflag (int n) { return rep->promptflag (n); } std::string get_input (bool& eof) { return rep->get_input (eof); } std::string input_source (void) const { return rep->input_source (); } bool input_from_terminal (void) const { return rep->input_from_terminal (); } bool input_from_file (void) const { return rep->input_from_file (); } bool input_from_eval_string (void) const { return rep->input_from_eval_string (); } private: base_reader *rep; }; } #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) OCTAVE_DEPRECATED ("use 'octave::base_reader' instead") typedef octave::base_reader octave_base_reader; OCTAVE_DEPRECATED ("use 'octave::terminal_reader' instead") typedef octave::terminal_reader octave_terminal_reader; OCTAVE_DEPRECATED ("use 'octave::file_reader' instead") typedef octave::file_reader octave_file_reader; OCTAVE_DEPRECATED ("use 'octave::eval_string_reader' instead") typedef octave::eval_string_reader octave_eval_string_reader; OCTAVE_DEPRECATED ("use 'octave::input_reader' instead") typedef octave::input_reader octave_input_reader; #endif #endif