Mercurial > octave
view libinterp/octave.cc @ 23083:e9a0469dedd9 stable
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author | John W. Eaton <jwe@octave.org> |
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date | Fri, 20 Jan 2017 12:19:08 -0500 |
parents | 34ce5be04942 |
children | ef4d915df748 3ac9f9ecfae5 |
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/* Copyright (C) 1993-2016 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/>. */ // Born February 20, 1992. #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <string> #include "file-ops.h" #include "getopt-wrapper.h" #include "lo-error.h" #include "oct-env.h" #include "str-vec.h" #include "builtin-defun-decls.h" #include "Cell.h" #include "defaults.h" #include "defun.h" #include "display.h" #include "error.h" #include "input.h" #include "interpreter.h" #include "octave.h" #include "oct-hist.h" #include "oct-map.h" #include "ovl.h" #include "options-usage.h" #include "ov.h" #include "parse.h" #include "sysdep.h" namespace octave { cmdline_options::cmdline_options (void) { m_all_args.resize (1); m_all_args[0] = ""; } cmdline_options::cmdline_options (int argc, char **argv) { // Save raw program arguments. m_all_args = string_vector (argv, argc); while (true) { int long_idx; int optc = octave_getopt_long_wrapper (argc, argv, short_opts, long_opts, &long_idx); if (optc < 0) break; switch (optc) { case '?': // Unrecognized option. getopt_long already printed a message about // it, so we will just print the usage string and exit. octave_print_terse_usage_and_exit (); break; case 'H': Fhistory_save (octave_value (false)); m_read_history_file = false; break; case 'W': m_no_window_system = true; break; case 'V': m_verbose_flag = true; break; case 'd': // This is the same as yydebug in parse.y. octave_debug++; break; case 'f': m_read_init_files = false; m_read_site_files = false; break; case 'h': octave_print_verbose_usage_and_exit (); break; case 'i': m_forced_interactive = true; break; case 'p': if (octave_optarg_wrapper ()) m_command_line_path.push_back (octave_optarg_wrapper ()); break; case 'q': m_inhibit_startup_message = true; break; case 'x': { int val = ECHO_SCRIPTS | ECHO_FUNCTIONS | ECHO_CMD_LINE; Fecho_executing_commands (octave_value (val)); } break; case 'v': octave_print_version_and_exit (); break; case BUILT_IN_DOCSTRINGS_FILE_OPTION: if (octave_optarg_wrapper ()) Fbuilt_in_docstrings_file (octave_value (octave_optarg_wrapper ())); break; case DOC_CACHE_FILE_OPTION: if (octave_optarg_wrapper ()) Fdoc_cache_file (octave_value (octave_optarg_wrapper ())); break; case EVAL_OPTION: if (octave_optarg_wrapper ()) { if (m_code_to_eval.empty ()) m_code_to_eval = octave_optarg_wrapper (); else m_code_to_eval += std::string (" ") + octave_optarg_wrapper (); } break; case EXEC_PATH_OPTION: if (octave_optarg_wrapper ()) m_exec_path = octave_optarg_wrapper (); break; case FORCE_GUI_OPTION: m_force_gui = true; break; case IMAGE_PATH_OPTION: if (octave_optarg_wrapper ()) m_image_path = octave_optarg_wrapper (); break; case INFO_FILE_OPTION: if (octave_optarg_wrapper ()) Finfo_file (octave_value (octave_optarg_wrapper ())); break; case INFO_PROG_OPTION: if (octave_optarg_wrapper ()) Finfo_program (octave_value (octave_optarg_wrapper ())); break; case DEBUG_JIT_OPTION: Fdebug_jit (octave_value (true)); break; case JIT_COMPILER_OPTION: Fjit_enable (octave_value (true)); break; case LINE_EDITING_OPTION: m_forced_line_editing = m_line_editing = true; break; case NO_GUI_OPTION: m_no_gui = true; break; case NO_INIT_FILE_OPTION: m_read_init_files = false; break; case NO_INIT_PATH_OPTION: m_set_initial_path = false; break; case NO_LINE_EDITING_OPTION: m_line_editing = false; break; case NO_SITE_FILE_OPTION: m_read_site_files = 0; break; case PERSIST_OPTION: m_persist = true; break; case TEXI_MACROS_FILE_OPTION: if (octave_optarg_wrapper ()) Ftexi_macros_file (octave_value (octave_optarg_wrapper ())); break; case TRADITIONAL_OPTION: m_traditional = true; m_persist = true; break; default: // getopt_long should print a message about unrecognized options and // return '?', which is handled above. If we end up here, it is // because there was an option but we forgot to handle it. // That should be fatal. panic_impossible (); break; } } // Check for various incompatible argument pairs if (m_force_gui && m_no_gui) { warning ("only one of --force-gui and --no-gui may be used"); octave_print_terse_usage_and_exit (); } m_remaining_args = string_vector (argv+octave_optind_wrapper (), argc-octave_optind_wrapper ()); } cmdline_options::cmdline_options (const cmdline_options& opts) : m_force_gui (opts.m_force_gui), m_forced_interactive (opts.m_forced_interactive), m_forced_line_editing (opts.m_forced_line_editing), m_inhibit_startup_message (opts.m_inhibit_startup_message), m_line_editing (opts.m_line_editing), m_no_gui (opts.m_no_gui), m_no_window_system (opts.m_no_window_system), m_persist (opts.m_persist), m_read_history_file (opts.m_read_history_file), m_read_init_files (opts.m_read_init_files), m_read_site_files (opts.m_read_site_files), m_set_initial_path (opts.m_set_initial_path), m_traditional (opts.m_traditional), m_verbose_flag (opts.m_verbose_flag), m_code_to_eval (opts.m_code_to_eval), m_command_line_path (opts.m_command_line_path), m_exec_path (opts.m_exec_path), m_image_path (opts.m_image_path), m_all_args (opts.m_all_args), m_remaining_args (opts.m_remaining_args) { } cmdline_options& cmdline_options::operator = (const cmdline_options& opts) { if (this != &opts) { m_force_gui = opts.m_force_gui; m_forced_interactive = opts.m_forced_interactive; m_forced_line_editing = opts.m_forced_line_editing; m_inhibit_startup_message = opts.m_inhibit_startup_message; m_line_editing = opts.m_line_editing; m_no_gui = opts.m_no_gui; m_no_window_system = opts.m_no_window_system; m_persist = opts.m_persist; m_read_history_file = opts.m_read_history_file; m_read_init_files = opts.m_read_init_files; m_read_site_files = opts.m_read_site_files; m_set_initial_path = opts.m_set_initial_path; m_traditional = opts.m_traditional; m_verbose_flag = opts.m_verbose_flag; m_code_to_eval = opts.m_code_to_eval; m_command_line_path = opts.m_command_line_path; m_exec_path = opts.m_exec_path; m_image_path = opts.m_image_path; m_all_args = opts.m_all_args; m_remaining_args = opts.m_remaining_args; } return *this; } application *application::instance = 0; application::application (int argc, char **argv) : m_options (argc, argv) { init (); } application::application (const cmdline_options& opts) : m_options (opts) { init (); } void application::set_program_names (const std::string& pname) { m_program_invocation_name = pname; size_t pos = pname.find_last_of (octave::sys::file_ops::dir_sep_chars ()); m_program_name = (pos != std::string::npos) ? pname.substr (pos+1) : pname; } void application::intern_argv (const string_vector& args) { assert (symbol_table::at_top_level ()); octave_idx_type nargs = args.numel (); if (nargs > 0) { // Skip first argument (program name). nargs--; m_argv.resize (nargs); for (octave_idx_type i = 0; i < nargs; i++) m_argv[i] = args[i+1]; } symbol_table::assign (".nargin.", nargs); symbol_table::mark_hidden (".nargin."); } void application::interactive (bool arg) { interpreter *interp = instance->m_interpreter; if (interp) interp->interactive (arg); } bool application::forced_interactive (void) { return instance->m_options.forced_interactive (); } bool application::interactive (void) { interpreter *interp = instance->m_interpreter; return interp ? interp->interactive () : false; } application::~application (void) { instance = 0; delete m_interpreter; } void application::create_interpreter (void) { if (! m_interpreter) m_interpreter = new interpreter (this); } int application::execute_interpreter (void) { return m_interpreter ? m_interpreter->execute () : -1; } void application::init (void) { if (instance) { // FIXME: Should this be an error? } else instance = this; string_vector all_args = m_options.all_args (); set_program_names (all_args[0]); string_vector remaining_args = m_options.remaining_args (); std::string code_to_eval = m_options.code_to_eval (); m_have_script_file = ! remaining_args.empty (); if (! code_to_eval.empty () && m_have_script_file) { warning ("--eval \"CODE\" and script file are mutually exclusive options"); octave_print_terse_usage_and_exit (); } m_is_octave_program = ((m_have_script_file || ! code_to_eval.empty ()) && ! m_options.persist () && ! m_options.traditional ()); // This should probably happen early. sysdep_init (); // Need to have global Vfoo variables defined early. install_defaults (); } int cli_application::execute (void) { create_interpreter (); return execute_interpreter (); } void embedded_application::create_interpreter (void) { if (! m_interpreter) m_interpreter = new interpreter (this, true); } int embedded_application::execute (void) { create_interpreter (); return execute_interpreter (); } } // embedded is int here because octave_main is extern "C". int octave_main (int argc, char **argv, int embedded) { octave::sys::env::set_program_name (argv[0]); if (embedded) { octave::embedded_application app (argc, argv); return app.execute (); } else { octave::cli_application app (argc, argv); return app.execute (); } } DEFUN (isguirunning, args, , doc: /* -*- texinfo -*- @deftypefn {} {} isguirunning () Return true if Octave is running in GUI mode and false otherwise. @seealso{have_window_system} @end deftypefn */) { if (args.length () != 0) print_usage (); // FIXME: This isn't quite right, it just says that we intended to // start the GUI, not that it is actually running. return ovl (octave::application::is_gui_running ()); } /* %!assert (islogical (isguirunning ())) %!error isguirunning (1) */ DEFUN (argv, args, , doc: /* -*- texinfo -*- @deftypefn {} {} argv () Return the command line arguments passed to Octave. For example, if you invoked Octave using the command @example octave --no-line-editing --silent @end example @noindent @code{argv} would return a cell array of strings with the elements @option{--no-line-editing} and @option{--silent}. If you write an executable Octave script, @code{argv} will return the list of arguments passed to the script. @xref{Executable Octave Programs}, for an example of how to create an executable Octave script. @end deftypefn */) { if (args.length () != 0) print_usage (); return ovl (Cell (octave::application::argv ())); } /* %!assert (iscellstr (argv ())) %!error argv (1) */ DEFUN (program_invocation_name, args, , doc: /* -*- texinfo -*- @deftypefn {} {} program_invocation_name () Return the name that was typed at the shell prompt to run Octave. If executing a script from the command line (e.g., @code{octave foo.m}) or using an executable Octave script, the program name is set to the name of the script. @xref{Executable Octave Programs}, for an example of how to create an executable Octave script. @seealso{program_name} @end deftypefn */) { if (args.length () != 0) print_usage (); return ovl (octave::application::program_invocation_name ()); } /* %!assert (ischar (program_invocation_name ())) %!error program_invocation_name (1) */ DEFUN (program_name, args, , doc: /* -*- texinfo -*- @deftypefn {} {} program_name () Return the last component of the value returned by @code{program_invocation_name}. @seealso{program_invocation_name} @end deftypefn */) { if (args.length () != 0) print_usage (); return ovl (octave::application::program_name ()); } /* %!assert (ischar (program_name ())) %!error program_name (1) */