Mercurial > octave
view liboctave/system/oct-env.cc @ 31771:21f9b34eb893
maint: Eliminate "(void)" in C++ function prototypes/declarations.
* mk-opts.pl, external.txi, embedded.cc, make_int.cc, standalone.cc,
standalonebuiltin.cc, BaseControl.cc, BaseControl.h, ButtonControl.cc,
ButtonControl.h, ButtonGroup.cc, ButtonGroup.h, Canvas.cc, Canvas.h,
CheckBoxControl.cc, CheckBoxControl.h, Container.cc, Container.h,
ContextMenu.cc, ContextMenu.h, EditControl.cc, EditControl.h, Figure.cc,
Figure.h, FigureWindow.cc, FigureWindow.h, GLCanvas.cc, GLCanvas.h,
GenericEventNotify.h, KeyMap.cc, ListBoxControl.cc, ListBoxControl.h,
Logger.cc, Logger.h, Menu.cc, Menu.h, MenuContainer.h, Object.cc, Object.h,
ObjectProxy.cc, ObjectProxy.h, Panel.cc, Panel.h, PopupMenuControl.cc,
PopupMenuControl.h, PushButtonControl.cc, PushButtonControl.h, PushTool.cc,
PushTool.h, RadioButtonControl.cc, RadioButtonControl.h, SliderControl.cc,
SliderControl.h, Table.cc, Table.h, TextControl.cc, TextControl.h, TextEdit.h,
ToggleButtonControl.cc, ToggleButtonControl.h, ToggleTool.cc, ToggleTool.h,
ToolBar.cc, ToolBar.h, ToolBarButton.cc, ToolBarButton.h, gl-select.cc,
gl-select.h, qopengl-functions.h, qt-graphics-toolkit.h, qdialog.cpp,
qfontdialog.cpp, qprintdialog_win.cpp, liboctgui-build-info.h,
liboctgui-build-info.in.cc, color-picker.cc, color-picker.h, command-widget.cc,
command-widget.h, community-news.cc, community-news.h, dialog.cc, dialog.h,
documentation-bookmarks.cc, documentation-bookmarks.h,
documentation-dock-widget.cc, documentation-dock-widget.h, documentation.cc,
documentation.h, dw-main-window.cc, dw-main-window.h,
external-editor-interface.cc, external-editor-interface.h,
files-dock-widget.cc, files-dock-widget.h, find-files-dialog.cc,
find-files-dialog.h, find-files-model.cc, find-files-model.h,
gui-preferences.cc, gui-preferences.h, gui-settings.cc, gui-settings.h,
history-dock-widget.cc, history-dock-widget.h, interpreter-qobject.cc,
interpreter-qobject.h, file-editor-interface.h, file-editor-tab.cc,
file-editor-tab.h, file-editor.cc, file-editor.h, find-dialog.cc,
find-dialog.h, marker.cc, marker.h, octave-qscintilla.cc, octave-qscintilla.h,
octave-txt-lexer.cc, octave-txt-lexer.h, main-window.cc, main-window.h,
news-reader.cc, news-reader.h, octave-dock-widget.cc, octave-dock-widget.h,
octave-qobject.cc, octave-qobject.h, qt-application.cc, qt-application.h,
qt-interpreter-events.cc, qt-interpreter-events.h, release-notes.cc,
release-notes.h, set-path-dialog.cc, set-path-dialog.h, set-path-model.cc,
set-path-model.h, settings-dialog.cc, settings-dialog.h,
shortcuts-tree-widget.cc, shortcuts-tree-widget.h, tab-bar.cc, tab-bar.h,
terminal-dock-widget.cc, terminal-dock-widget.h, variable-editor-model.cc,
variable-editor-model.h, variable-editor.cc, variable-editor.h,
welcome-wizard.cc, welcome-wizard.h, workspace-model.cc, workspace-model.h,
workspace-view.cc, workspace-view.h, build-env.h, Cell.cc, Cell.h,
__contourc__.cc, __magick_read__.cc, auto-shlib.cc, auto-shlib.h,
base-text-renderer.h, bsxfun.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h,
call-stack.cc, call-stack.h, debug.cc, defaults.cc, defaults.h, defun.cc,
display.cc, display.h, dynamic-ld.cc, dynamic-ld.h, environment.cc,
environment.h, error.cc, error.h, errwarn.cc, errwarn.h, event-manager.cc,
event-manager.h, event-queue.cc, event-queue.h, fcn-info.cc, fcn-info.h,
ft-text-renderer.cc, ft-text-renderer.h, genprops.awk, gh-manager.cc,
gh-manager.h, gl-render.cc, gl-render.h, gl2ps-print.cc, graphics-toolkit.h,
graphics.cc, graphics.in.h, gtk-manager.cc, gtk-manager.h, help.cc, help.h,
hook-fcn.h, input.cc, input.h, interpreter-private.cc, interpreter-private.h,
interpreter.cc, interpreter.h, jsondecode.cc, latex-text-renderer.cc,
latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h,
ls-hdf5.cc, ls-hdf5.h, mxarray.h, oct-errno.h, oct-errno.in.cc, oct-fstrm.cc,
oct-fstrm.h, oct-handle.h, oct-hist.cc, oct-hist.h, oct-iostrm.cc,
oct-iostrm.h, oct-map.cc, oct-map.h, oct-opengl.h, oct-prcstrm.cc,
oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h, oct-process.h, oct-stdstrm.h,
oct-stream.cc, oct-stream.h, oct-strstrm.cc, oct-strstrm.h,
oct-tex-lexer.in.ll, pager.cc, pager.h, pr-flt-fmt.cc, pr-flt-fmt.h,
pr-output.cc, pr-output.h, procstream.cc, procstream.h, settings.cc,
settings.h, sighandlers.cc, sighandlers.h, stack-frame.cc, stack-frame.h,
svd.cc, syminfo.cc, syminfo.h, symrec.cc, symrec.h, symscope.cc, symscope.h,
symtab.cc, symtab.h, sysdep.cc, sysdep.h, text-engine.cc, text-engine.h,
text-renderer.cc, text-renderer.h, toplev.cc, url-handle-manager.cc,
url-handle-manager.h, variables.cc, xpow.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __ode15__.cc, audiodevinfo.cc, gzip.cc,
liboctinterp-build-info.h, liboctinterp-build-info.in.cc,
mk-build-env-features.sh, mk-builtins.pl, cdef-class.cc, cdef-class.h,
cdef-manager.h, cdef-method.cc, cdef-method.h, cdef-object.cc, cdef-object.h,
cdef-package.cc, cdef-package.h, cdef-property.cc, cdef-property.h,
cdef-utils.cc, cdef-utils.h, ov-base-diag.cc, ov-base-diag.h, ov-base-int.cc,
ov-base-int.h, ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.cc,
ov-base-scalar.h, ov-base-sparse.cc, ov-base-sparse.h, ov-base.cc, ov-base.h,
ov-bool-mat.cc, ov-bool-mat.h, ov-bool-sparse.cc, ov-bool-sparse.h, ov-bool.cc,
ov-bool.h, ov-builtin.cc, ov-builtin.h, ov-cell.cc, ov-cell.h, ov-ch-mat.cc,
ov-ch-mat.h, ov-class.cc, ov-class.h, ov-classdef.cc, ov-classdef.h,
ov-colon.h, ov-complex.cc, ov-complex.h, ov-cs-list.h, ov-cx-diag.cc,
ov-cx-diag.h, ov-cx-mat.cc, ov-cx-mat.h, ov-cx-sparse.cc, ov-cx-sparse.h,
ov-dld-fcn.cc, ov-dld-fcn.h, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.cc,
ov-fcn.h, ov-float.cc, ov-float.h, ov-flt-complex.cc, ov-flt-complex.h,
ov-flt-cx-diag.cc, ov-flt-cx-diag.h, ov-flt-cx-mat.cc, ov-flt-cx-mat.h,
ov-flt-re-diag.cc, ov-flt-re-diag.h, ov-flt-re-mat.cc, ov-flt-re-mat.h,
ov-intx.h, ov-java.cc, ov-java.h, ov-lazy-idx.cc, ov-lazy-idx.h,
ov-legacy-range.cc, ov-legacy-range.h, ov-magic-int.cc, ov-magic-int.h,
ov-mex-fcn.cc, ov-mex-fcn.h, ov-null-mat.cc, ov-null-mat.h, ov-oncleanup.cc,
ov-oncleanup.h, ov-perm.cc, ov-perm.h, ov-range.cc, ov-range.h, ov-re-diag.cc,
ov-re-diag.h, ov-re-mat.cc, ov-re-mat.h, ov-re-sparse.cc, ov-re-sparse.h,
ov-scalar.cc, ov-scalar.h, ov-str-mat.cc, ov-str-mat.h, ov-struct.cc,
ov-struct.h, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc,
ov.h, ovl.cc, ovl.h, octave.cc, octave.h, anon-fcn-validator.h, bp-table.cc,
bp-table.h, comment-list.cc, comment-list.h, filepos.h, lex.h, lex.ll,
oct-lvalue.cc, oct-lvalue.h, oct-parse.yy, parse.h, profiler.cc, profiler.h,
pt-anon-scopes.h, pt-arg-list.cc, pt-arg-list.h, pt-args-block.cc,
pt-args-block.h, pt-array-list.cc, pt-array-list.h, pt-assign.cc, pt-assign.h,
pt-binop.cc, pt-binop.h, pt-bp.h, pt-cbinop.h, pt-cell.h, pt-check.h,
pt-classdef.cc, pt-classdef.h, pt-cmd.h, pt-colon.h, pt-const.h, pt-decl.cc,
pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.cc, pt-except.h, pt-exp.cc,
pt-exp.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-id.cc, pt-id.h, pt-idx.cc,
pt-idx.h, pt-jump.h, pt-loop.cc, pt-loop.h, pt-mat.h, pt-misc.cc, pt-misc.h,
pt-pr-code.cc, pt-pr-code.h, pt-select.cc, pt-select.h, pt-spmd.cc, pt-spmd.h,
pt-stmt.cc, pt-stmt.h, pt-tm-const.cc, pt-tm-const.h, pt-unop.cc, pt-unop.h,
pt-walk.h, pt.cc, pt.h, token.cc, token.h, usage.h, Array-base.cc, Array.h,
CColVector.cc, CColVector.h, CDiagMatrix.cc, CDiagMatrix.h, CMatrix.cc,
CMatrix.h, CNDArray.cc, CNDArray.h, CRowVector.cc, CRowVector.h, CSparse.cc,
CSparse.h, DiagArray2.cc, DiagArray2.h, MArray.cc, MArray.h, MDiagArray2.h,
MSparse.h, MatrixType.cc, MatrixType.h, PermMatrix.cc, PermMatrix.h, Range.cc,
Range.h, Sparse-b.cc, Sparse.cc, Sparse.h, boolMatrix.cc, boolMatrix.h,
boolNDArray.cc, boolNDArray.h, boolSparse.cc, boolSparse.h, chMatrix.h,
chNDArray.h, dColVector.cc, dColVector.h, dDiagMatrix.cc, dDiagMatrix.h,
dMatrix.cc, dMatrix.h, dNDArray.cc, dNDArray.h, dRowVector.cc, dRowVector.h,
dSparse.cc, dSparse.h, dim-vector.cc, dim-vector.h, fCColVector.cc,
fCColVector.h, fCDiagMatrix.cc, fCDiagMatrix.h, fCMatrix.cc, fCMatrix.h,
fCNDArray.cc, fCNDArray.h, fCRowVector.cc, fCRowVector.h, fColVector.cc,
fColVector.h, fDiagMatrix.cc, fDiagMatrix.h, fMatrix.cc, fMatrix.h,
fNDArray.cc, fNDArray.h, fRowVector.cc, fRowVector.h, idx-vector.cc,
idx-vector.h, intNDArray.cc, intNDArray.h, liboctave-build-info.h,
liboctave-build-info.in.cc, CollocWt.cc, CollocWt.h, DAE.h, DAEFunc.h, DAERT.h,
DAERTFunc.h, DASPK.cc, DASPK.h, DASRT.cc, DASRT.h, DASSL.cc, DASSL.h, DET.h,
EIG.h, LSODE.cc, LSODE.h, ODE.h, ODEFunc.h, ODES.h, ODESFunc.h, Quad.h,
aepbalance.cc, aepbalance.h, base-dae.h, base-de.h, chol.cc, chol.h,
eigs-base.cc, fEIG.h, gepbalance.h, gsvd.cc, gsvd.h, hess.h, lu.cc, lu.h,
oct-fftw.cc, oct-fftw.h, oct-rand.cc, oct-rand.h, oct-spparms.cc,
oct-spparms.h, qr.cc, qr.h, qrp.cc, qrp.h, randmtzig.cc, randmtzig.h, schur.h,
sparse-chol.cc, sparse-chol.h, sparse-lu.cc, sparse-lu.h, sparse-qr.cc,
sparse-qr.h, svd.cc, svd.h, child-list.cc, child-list.h, dir-ops.cc, dir-ops.h,
file-ops.cc, file-ops.h, file-stat.cc, file-stat.h, lo-sysdep.cc, lo-sysdep.h,
lo-sysinfo.cc, lo-sysinfo.h, mach-info.cc, mach-info.h, oct-env.cc, oct-env.h,
oct-group.cc, oct-group.h, oct-password.cc, oct-password.h, oct-syscalls.cc,
oct-syscalls.h, oct-time.cc, oct-time.h, oct-uname.cc, oct-uname.h,
action-container.h, base-list.h, caseless-str.h, cmd-edit.cc, cmd-edit.h,
cmd-hist.cc, cmd-hist.h, data-conv.cc, file-info.h, glob-match.cc,
glob-match.h, kpse.cc, kpse.h, lo-array-errwarn.cc, lo-array-errwarn.h,
lo-hash.cc, lo-hash.h, lo-ieee.cc, lo-ieee.h, lo-regexp.cc, lo-regexp.h,
oct-inttypes.cc, oct-inttypes.h, oct-mutex.cc, oct-mutex.h, oct-refcount.h,
oct-shlib.cc, oct-shlib.h, oct-sort.cc, oct-sort.h, oct-sparse.cc,
octave-preserve-stream-state.h, pathsearch.cc, pathsearch.h, quit.cc,
singleton-cleanup.cc, singleton-cleanup.h, str-vec.cc, str-vec.h,
unwind-prot.cc, unwind-prot.h, url-transfer.cc, url-transfer.h, version.cc,
version.in.h, cxx-signal-helpers.cc, acinclude.m4, main-cli.cc, main-gui.cc,
main.in.cc, mkoctfile.in.cc, octave-build-info.h, octave-build-info.in.cc,
octave-config.in.cc, octave-svgconvert.cc, shared-fcns.h:
maint: Eliminate "(void)" in C++ function prototypes/declarations.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 24 Jan 2023 17:19:44 -0800 |
parents | 597f3ee61a48 |
children | 2da025d5e98d |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2023 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/>. // //////////////////////////////////////////////////////////////////////// /* The functions listed below were adapted from a similar functions from GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc. octave::sys::env::do_absolute_pathname octave::sys::env::do_base_pathname octave::sys::env::do_chdir octave::sys::env::do_getcwd octave::sys::env::do_make_absolute octave::sys::env::do_polite_directory_format octave::sys::env::pathname_backup */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cctype> #include <cstdlib> #include <cstring> #include <string> #include "file-ops.h" #include "lo-error.h" #include "lo-sysdep.h" #include "lo-utils.h" #include "oct-env.h" #include "oct-password.h" #include "oct-syscalls.h" #include "set-program-name-wrapper.h" #include "singleton-cleanup.h" #include "unistd-wrappers.h" #if defined (OCTAVE_USE_WINDOWS_API) # include <windows.h> # include <shlobj.h> #endif OCTAVE_BEGIN_NAMESPACE(octave) OCTAVE_BEGIN_NAMESPACE(sys) env::env () : m_follow_symbolic_links (true), m_verbatim_pwd (true), m_current_directory (), m_prog_name (), m_prog_invocation_name (), m_user_name (), m_host_name () { // Get a real value for the current directory. do_getcwd (); // Etc. do_get_user_name (); do_get_host_name (); } env *env::m_instance = nullptr; bool env::instance_ok () { bool retval = true; if (! m_instance) { m_instance = new env (); singleton_cleanup_list::add (cleanup_instance); } return retval; } std::string env::polite_directory_format (const std::string& name) { return (instance_ok ()) ? m_instance->do_polite_directory_format (name) : ""; } bool env::absolute_pathname (const std::string& s) { return (instance_ok ()) ? m_instance->do_absolute_pathname (s) : false; } bool env::rooted_relative_pathname (const std::string& s) { return (instance_ok ()) ? m_instance->do_rooted_relative_pathname (s) : false; } std::string env::base_pathname (const std::string& s) { return (instance_ok ()) ? m_instance->do_base_pathname (s) : ""; } std::string env::make_absolute (const std::string& s, const std::string& dot_path) { return (instance_ok ()) ? m_instance->do_make_absolute (s, dot_path) : ""; } std::string env::get_current_directory () { return (instance_ok ()) ? m_instance->do_getcwd () : ""; } std::string env::get_home_directory () { return (instance_ok ()) ? m_instance->do_get_home_directory () : ""; } std::string env::get_temp_directory () { return (instance_ok ()) ? m_instance->do_get_temp_directory () : ""; } std::string env::get_user_config_directory () { return (instance_ok ()) ? m_instance->do_get_user_config_directory () : ""; } std::string env::get_user_data_directory () { return (instance_ok ()) ? m_instance->do_get_user_data_directory () : ""; } std::string env::get_program_name () { return (instance_ok ()) ? m_instance->m_prog_name : ""; } std::string env::get_program_invocation_name () { return (instance_ok ()) ? m_instance->m_prog_invocation_name : ""; } void env::set_program_name (const std::string& s) { if (instance_ok ()) m_instance->do_set_program_name (s); } std::string env::get_user_name () { return (instance_ok ()) ? m_instance->do_get_user_name () : ""; } std::string env::get_host_name () { return (instance_ok ()) ? m_instance->do_get_host_name () : ""; } std::string env::do_get_temp_directory () const { std::string tempd = do_getenv ("TMPDIR"); #if defined (__MINGW32__) || defined (_MSC_VER) if (tempd.empty ()) tempd = do_getenv ("TEMP"); if (tempd.empty ()) tempd = do_getenv ("TMP"); #if defined (P_tmpdir) if (tempd.empty ()) tempd = P_tmpdir; #endif // Some versions of MinGW and MSVC either don't define P_tmpdir, or // define it to a single backslash. In such cases just use C:\temp. if (tempd.empty () || tempd == R"(\)") tempd = R"(c:\temp)"; #else if (tempd.empty ()) tempd = do_getenv ("TMP"); #if defined (P_tmpdir) if (tempd.empty ()) tempd = P_tmpdir; #else if (tempd.empty ()) tempd = "/tmp"; #endif #endif return tempd; } std::string env::do_get_user_config_directory () { std::string cfg_dir; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && defined (OCTAVE_USE_WINDOWS_API) wchar_t path[MAX_PATH+1]; if (SHGetFolderPathW (nullptr, CSIDL_APPDATA | CSIDL_FLAG_DONT_VERIFY, nullptr, SHGFP_TYPE_CURRENT, path) == S_OK) cfg_dir = u8_from_wstring (path); #else cfg_dir = do_getenv ("XDG_CONFIG_HOME"); #endif if (cfg_dir.empty ()) cfg_dir = do_get_home_directory () + sys::file_ops::dir_sep_str () + ".config"; return cfg_dir; } std::string env::do_get_user_data_directory () { std::string data_dir; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) && defined (OCTAVE_USE_WINDOWS_API) wchar_t path[MAX_PATH+1]; if (SHGetFolderPathW (nullptr, CSIDL_APPDATA | CSIDL_FLAG_DONT_VERIFY, nullptr, SHGFP_TYPE_CURRENT, path) == S_OK) data_dir = u8_from_wstring (path); #else data_dir = do_getenv ("XDG_DATA_HOME"); #endif if (data_dir.empty ()) data_dir = do_get_home_directory () + sys::file_ops::dir_sep_str () + ".local" + sys::file_ops::dir_sep_str () + "share"; return data_dir; } // FIXME: this leaves no way to distinguish between a // variable that is not set and one that is set to the empty string. // Is this a problem? std::string env::getenv (const std::string& name) { return (instance_ok ()) ? m_instance->do_getenv (name) : ""; } void env::putenv (const std::string& name, const std::string& value) { putenv_wrapper (name, value); } bool env::have_x11_display () { std::string display = getenv ("DISPLAY"); return ! display.empty (); } bool env::chdir (const std::string& newdir) { return (instance_ok ()) ? m_instance->do_chdir (newdir) : false; } void env::do_set_program_name (const std::string& s) { static bool initialized = false; if (! initialized) { // octave_set_program_name_wrapper returns a cleaned up // version of the program name (stripping libtool's "lt-" // prefix, for example). // The string passed to gnulib's ::set_program_name function must // exist for the duration of the program so allocate a copy here // instead of passing S.c_str () which only exists as long as the // string object S. m_prog_invocation_name = octave_set_program_name_wrapper (strsave (s.c_str ())); std::size_t pos = m_prog_invocation_name.find_last_of (sys::file_ops::dir_sep_chars ()); // Also keep a shortened version of the program name. m_prog_name = (pos == std::string::npos ? m_prog_invocation_name : m_prog_invocation_name.substr (pos+1)); initialized = true; } } // Return a pretty pathname. If the first part of the pathname is the // same as $HOME, then replace that with '~'. std::string env::do_polite_directory_format (const std::string& name) { std::string retval; std::string home_dir = do_get_home_directory (); std::size_t len = home_dir.length (); if (len > 1 && home_dir == name.substr (0, len) && (name.length () == len || sys::file_ops::is_dir_sep (name[len]))) { retval = "~"; retval.append (name.substr (len)); } else retval = name; return retval; } bool env::do_absolute_pathname (const std::string& s) const { std::size_t len = s.length (); if (len == 0) return false; if (sys::file_ops::is_dir_sep (s[0])) return true; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) if ((len == 2 && isalpha (s[0]) && s[1] == ':') || (len > 2 && isalpha (s[0]) && s[1] == ':' && sys::file_ops::is_dir_sep (s[2]))) return true; #endif return false; } bool env::do_rooted_relative_pathname (const std::string& s) const { std::size_t len = s.length (); if (len == 0) return false; if (len == 1 && s[0] == '.') return true; if (len > 1 && s[0] == '.' && sys::file_ops::is_dir_sep (s[1])) return true; if (len == 2 && s[0] == '.' && s[1] == '.') return true; if (len > 2 && s[0] == '.' && s[1] == '.' && sys::file_ops::is_dir_sep (s[2])) return true; return false; } // Return the 'basename' of the pathname in STRING (the stuff after // the last directory separator). If STRING is not a full pathname, // simply return it. std::string env::do_base_pathname (const std::string& s) const { if (! (do_absolute_pathname (s) || do_rooted_relative_pathname (s))) return s; std::size_t pos = s.find_last_of (sys::file_ops::dir_sep_chars ()); if (pos == std::string::npos) return s; else return s.substr (pos+1); } // Turn STRING (a pathname) into an absolute pathname, assuming that // DOT_PATH contains the symbolic location of the current directory. std::string env::do_make_absolute (const std::string& s, const std::string& dot_path) const { if (dot_path.empty () || s.empty () || do_absolute_pathname (s)) return s; // Optimization: every time Octave returns to the prompt it calls // make_absolute_filename with '.' as argument. if (s == ".") return dot_path; std::string current_dir = dot_path; if (! sys::file_ops::is_dir_sep (current_dir.back ())) current_dir.append (sys::file_ops::dir_sep_str ()); std::size_t i = 0; std::size_t slen = s.length (); while (i < slen) { if (s[i] == '.') { if (i + 1 == slen) break; if (sys::file_ops::is_dir_sep (s[i+1])) { i += 2; continue; } if (s[i+1] == '.' && (i + 2 == slen || sys::file_ops::is_dir_sep (s[i+2]))) { i += 2; if (i != slen) i++; pathname_backup (current_dir, 1); continue; } } std::size_t sep_pos; sep_pos = s.find_first_of (sys::file_ops::dir_sep_chars (), i); if (sep_pos == std::string::npos) { current_dir.append (s, i, sep_pos-i); break; } else if (sep_pos == i) { /* Two separators in a row, skip adding 2nd separator */ i++; } else { current_dir.append (s, i, sep_pos-i+1); i = sep_pos + 1; } } // Strip any trailing directory separator if (sys::file_ops::is_dir_sep (current_dir.back ())) current_dir.pop_back (); return current_dir; } // Return a string which is the current working directory. std::string env::do_getcwd () { if (! m_follow_symbolic_links) m_current_directory = ""; if (m_verbatim_pwd || m_current_directory.empty ()) m_current_directory = sys::getcwd (); return m_current_directory; } // This value is not cached because it can change while Octave is // running. std::string env::do_get_home_directory () { std::string hd = do_getenv ("HOME"); #if defined (__MINGW32__) || defined (_MSC_VER) // Maybe we are started directly from cmd.exe. if (hd.empty ()) { std::string drv = do_getenv ("HOMEDRIVE"); if (drv.empty ()) hd = do_getenv ("HOMEPATH"); else hd = drv + do_getenv ("HOMEPATH"); } #endif if (hd.empty ()) { sys::password pw = sys::password::getpwuid (sys::getuid ()); hd = (pw ? pw.dir () : std::string (sys::file_ops::dir_sep_str ())); } return hd; } std::string env::do_get_user_name () { if (m_user_name.empty ()) { sys::password pw = sys::password::getpwuid (sys::getuid ()); m_user_name = (pw ? pw.name () : "unknown"); } return m_user_name; } std::string env::do_get_host_name () { if (m_host_name.empty ()) { char hostname[1024]; int status = octave_gethostname_wrapper (hostname, 1023); m_host_name = (status < 0) ? "unknown" : hostname; } return m_host_name; } std::string env::do_getenv (const std::string& name) const { return getenv_wrapper (name); } // Do the work of changing to the directory NEWDIR. // Handle symbolic link following, etc. bool env::do_chdir (const std::string& newdir) { bool retval = false; std::string tmp; if (m_follow_symbolic_links) { if (m_current_directory.empty ()) do_getcwd (); if (m_current_directory.empty ()) tmp = newdir; else tmp = do_make_absolute (newdir, m_current_directory); // Get rid of trailing directory separator. if (tmp.length () > 1 && sys::file_ops::is_dir_sep (tmp.back ())) tmp.pop_back (); if (! sys::chdir (tmp)) { m_current_directory = tmp; retval = true; } } else retval = (! sys::chdir (newdir)); return retval; } // Remove the last N directories from PATH. void env::pathname_backup (std::string& path, int n) const { if (path.empty ()) return; std::size_t i = path.length () - 1; while (n--) { while (sys::file_ops::is_dir_sep (path[i]) && i > 0) i--; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) // Don't strip file letter part. if (i == 1 && path[i] == ':') { // Keep path separator if present. i = std::min (i+2, path.length ()); break; } #endif while (! sys::file_ops::is_dir_sep (path[i]) && i > 0) i--; i++; } path.resize (i); } void env::error (int err_num) const { (*current_liboctave_error_handler) ("%s", std::strerror (err_num)); } void env::error (const std::string& s) const { (*current_liboctave_error_handler) ("%s", s.c_str ()); } OCTAVE_END_NAMESPACE(sys) OCTAVE_END_NAMESPACE(octave)