Mercurial > octave
view libinterp/octave.cc @ 23807:336f89b6208b
Use character literals 'c' rather than string literals "c" when possible.
Better performance when string constructor isn't required.
* Figure.cc, __init_qt__.cc, files-dock-widget.cc, file-editor-tab.cc,
file-editor.cc, octave-qscintilla.cc, main-window.cc, octave-dock-widget.cc,
octave-qt-link.cc, parser.cc, webinfo.cc, resource-manager.cc,
settings-dialog.cc, workspace-view.cc, __magick_read__.cc, balance.cc,
debug.cc, dynamic-ld.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc,
graphics.cc, hook-fcn.h, input.cc, load-path.cc, load-save.cc, ls-hdf5.cc,
oct-hist.cc, oct-stream.cc, pager.cc, pr-output.cc, qz.cc, symtab.cc, symtab.h,
tril.cc, __delaunayn__.cc, __init_fltk__.cc, __voronoi__.cc, audioread.cc,
ccolamd.cc, colamd.cc, convhulln.cc, ov-base-int.cc, ov-base-mat.cc,
ov-base-scalar.cc, ov-base.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc,
ov-classdef.cc, ov-colon.cc, ov-complex.cc, ov-cx-mat.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-fcn.h, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc,
ov-oncleanup.cc, ov-range.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-str-mat.cc,
ov-struct.cc, ov-usr-fcn.cc, ov.cc, octave.cc, bp-table.cc, jit-ir.cc,
jit-ir.h, jit-typeinfo.cc, pt-funcall.cc, pt-idx.cc, pt-pr-code.cc, pt.h,
Array.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc, CRowVector.cc, CSparse.cc,
Range.cc, boolSparse.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc,
dRowVector.cc, dSparse.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc,
fCRowVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc,
idx-vector.cc, intNDArray.cc, CollocWt.cc, DASPK.cc, DASRT.cc, DASSL.cc,
LSODE.cc, oct-time.cc, cmd-hist.cc, kpse.cc, lo-array-errwarn.cc, lo-regexp.cc,
lo-utils.cc, str-vec.cc, url-transfer.cc, main-cli.cc, main-gui.cc,
mkoctfile.in.cc:
Replace 1-character string literals "c" with the character literal 'c'.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 28 Jul 2017 15:40:00 -0700 |
parents | 90689bdbe048 |
children | 5d8ef9b859f8 |
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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/>. */ // 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 "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': 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': m_echo_commands = true; break; case 'v': octave_print_version_and_exit (); break; case BUILT_IN_DOCSTRINGS_FILE_OPTION: if (octave_optarg_wrapper ()) m_docstrings_file = octave_optarg_wrapper ();; break; case DOC_CACHE_FILE_OPTION: if (octave_optarg_wrapper ()) m_doc_cache_file = 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 += ' ' + 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 ()) m_info_file = octave_optarg_wrapper (); break; case INFO_PROG_OPTION: if (octave_optarg_wrapper ()) m_info_program = octave_optarg_wrapper (); break; case DEBUG_JIT_OPTION: m_debug_jit = true; break; case JIT_COMPILER_OPTION: m_jit_compiler = 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 ()) m_texi_macros_file = 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 ()); } application *application::instance = nullptr; 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 (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) { 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]; } } void application::interactive (bool arg) { interpreter *interp = (instance ? instance->m_interpreter : nullptr); if (interp) interp->interactive (arg); } bool application::forced_interactive (void) { return instance ? instance->m_options.forced_interactive () : false; } bool application::interactive (void) { interpreter *interp = (instance ? instance->m_interpreter : nullptr); return interp ? interp->interactive () : false; } application::~application (void) { // Delete interpreter if it still exists. delete m_interpreter; instance = nullptr; } bool application::interpreter_initialized (void) { return m_interpreter ? m_interpreter->initialized () : false; } interpreter& application::create_interpreter (void) { if (! m_interpreter) m_interpreter = new interpreter (this); return *m_interpreter; } int application::initialize_interpreter (void) { return m_interpreter ? m_interpreter->initialize () : -1; } int application::execute_interpreter (void) { return m_interpreter ? m_interpreter->execute () : -1; } void application::delete_interpreter (void) { delete m_interpreter; m_interpreter = nullptr; } void application::init (void) { if (instance) throw std::runtime_error ("only one Octave application object may be active"); 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 (); m_have_eval_option_code = ! code_to_eval.empty (); if (m_have_eval_option_code && m_have_script_file) { warning (R"(--eval "CODE" and script file are mutually exclusive options)"); octave_print_terse_usage_and_exit (); } m_is_octave_program = ((m_have_script_file || m_have_eval_option_code) && ! m_options.persist () && ! m_options.traditional ()); // This should probably happen early. sysdep_init (); } int cli_application::execute (void) { interpreter& interp = create_interpreter (); int status = interp.execute (); delete_interpreter (); return status; } } // embedded is int here because octave_main is extern "C". int octave_main (int argc, char **argv, int embedded) { if (embedded) { if (argc > 0) warning ("ignoring command line options for embedded octave"); static octave::interpreter embedded_interpreter; return embedded_interpreter.execute (); } else { warning ("octave_main should only be used to create an embedded interpreter"); static 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) */