102 lines
2.6 KiB
C++
Executable File
102 lines
2.6 KiB
C++
Executable File
/*
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PIP - Platform Independent Primitives
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Command-Line Parser
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Copyright (C) 2020 Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "picli.h"
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#include "pisysteminfo.h"
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/*! \class PICLI
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* \brief Command-line arguments parser
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*
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* \section PICLI_sec0 Synopsis
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* This class provide handy parsing of command-line arguments. First you should add
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* arguments to PICLI with function \a addArgument(). Then you can check if there
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* is some argument in application command-line with function \a hasArgument();
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* \section PICLI_sec1 Example
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* \snippet picli.cpp main
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*/
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PICLI::PICLI(int argc, char * argv[]) {
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setName("CLI");
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needParse = true;
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_prefix_short = "-";
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_prefix_full = "--";
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_count_opt = 0;
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_count_mand = 0;
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for (int i = 0; i < argc; ++i)
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_args_raw << argv[i];
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if (argc > 0)
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PISystemInfo::instance()->execCommand = argv[0];
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}
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void PICLI::parse() {
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if (!needParse) return;
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PIString cra, full;
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Argument * last = 0;
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for (int i = 1; i < _args_raw.size_s(); ++i) {
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cra = _args_raw[i];
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if (cra.left(2) == _prefix_full) {
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last = 0;
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full = cra.right(cra.length() - 2);
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piForeach (Argument & a, _args) {
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if (a.full_key == full) {
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a.found = true;
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last = &a;
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break;
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}
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}
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} else {
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if (cra.left(1) == _prefix_short) {
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last = 0;
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for (int j = 1; j < cra.length(); ++j) {
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bool found = false;
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piForeach (Argument & a, _args) {
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if (a.short_key == cra[j]) {
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a.found = true;
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last = &a;
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found = true;
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break;
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}
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}
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if (!found) break;
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}
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} else {
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if (last == 0 ? true : !last->has_value) {
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if (_args_mand.size_s() < _count_mand) {
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_args_mand << cra;
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continue;
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}
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if (_args_opt.size_s() < _count_opt || _count_opt < 0) {
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_args_opt << cra;
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continue;
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}
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piCoutObj << "[PICli] Arguments overflow, \"" << cra << "\" ignored";
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}
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if (last == 0 ? false : last->has_value) {
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last->value = cra;
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last = 0;
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}
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}
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}
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}
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needParse = false;
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}
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