146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these librararies and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: Options.C /main/1 1996/07/29 16:59:26 cde-hp $ */
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// Derived from comp.sources.unix/volume3/att_getopt.
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#ifndef Options_DEF_INCLUDED
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#define Options_DEF_INCLUDED 1
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#ifndef OPTION_CHAR
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#define OPTION_CHAR T('-')
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#endif
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#ifdef SP_NAMESPACE
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namespace SP_NAMESPACE {
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#endif
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template<class T>
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Options<T>::Options(int argc, T *const *argv, const T *opts)
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: argc_(argc), argv_(argv), opts_(opts), ind_(1), sp_(1)
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{
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}
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template<class T>
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const T *Options<T>::search(T c) const
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{
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for (const T *s = opts_; *s; s++)
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if (*s == c)
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return s;
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return 0;
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}
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template<class T>
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bool Options<T>::get(T &c)
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{
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const T *cp;
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if (sp_ == 1) {
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if (ind_ >= argc_)
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return false;
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if ((
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#ifdef OTHER_OPTION_CHAR
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argv_[ind_][0] != OTHER_OPTION_CHAR &&
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#endif
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argv_[ind_][0] != OPTION_CHAR) || argv_[ind_][1] == 0) {
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#ifdef REORDER_ARGS
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int i;
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for (i = ind_; i < argc_; i++)
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if ((
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#ifdef OTHER_OPTION_CHAR
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argv_[i][0] == OTHER_OPTION_CHAR ||
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#endif
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argv_[i][0] == OPTION_CHAR) && argv_[i][1] != 0)
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break;
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if (i < argc_) {
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c = argv_[i][1];
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if (c != T(':') && c != OPTION_CHAR
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&& (cp = search(c)) != 0
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&& cp[1] == T(':') && argv_[i][2] == 0 && i < argc_ - 1) {
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int j;
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T *temp1 = argv_[i];
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T *temp2 = argv_[i + 1];
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for (j = i - 1; j >= ind_; j--)
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argv_[j+2] = argv_[j];
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argv_[ind_] = temp1;
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argv_[ind_ + 1] = temp2;
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}
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else {
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int j;
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T *temp = argv_[i];
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for (j = i - 1; j >= ind_; j--)
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argv_[j+1] = argv_[j];
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argv_[ind_] = temp;
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}
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}
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else
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#endif
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return false;
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}
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if ((argv_[ind_][0] == OPTION_CHAR && argv_[ind_][1] == OPTION_CHAR
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&& argv_[ind_][2] == 0)
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#ifdef OTHER_OPTION_CHAR
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|| (argv_[ind_][0] == OTHER_OPTION_CHAR
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&& argv_[ind_][1] == OTHER_OPTION_CHAR
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&& argv_[ind_][2] == 0)
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#endif
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) {
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ind_++;
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return false;
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}
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}
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opt_ = c = argv_[ind_][sp_];
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if (c == T(':') || (cp = search(c)) == 0) {
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if (argv_[ind_][++sp_] == 0) {
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ind_++;
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sp_ = 1;
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}
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c = T('?');
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return true;
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}
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if (*++cp == T(':')) {
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if (argv_[ind_][sp_ + 1] != 0)
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arg_ = &argv_[ind_++][sp_ + 1];
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else if (++ind_ >= argc_) {
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sp_ = 1;
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c = (*opts_ == T(':') ? T(':') : T('?'));
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return true;
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}
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else
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arg_ = argv_[ind_++];
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sp_ = 1;
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}
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else {
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if (argv_[ind_][++sp_] == 0) {
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sp_ = 1;
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ind_++;
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}
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arg_ = 0;
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}
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return true;
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}
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#ifdef SP_NAMESPACE
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}
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#endif
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#endif /* not Options_DEF_INCLUDED */
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