Current File : //opt/cpanel/ea-ruby27/src/passenger-release-6.0.23/src/cxx_supportlib/Utils/OptionParsing.h
/*
* Phusion Passenger - https://www.phusionpassenger.com/
* Copyright (c) 2010-2017 Phusion Holding B.V.
*
* "Passenger", "Phusion Passenger" and "Union Station" are registered
* trademarks of Phusion Holding B.V.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _PASSENGER_OPTION_PARSING_H_
#define _PASSENGER_OPTION_PARSING_H_
#include <cstdio>
#include <cstring>
namespace Passenger {
using namespace std;
class OptionParser {
public:
typedef void (*UsageFunction)();
private:
UsageFunction usage;
public:
OptionParser(UsageFunction _usage)
: usage(_usage)
{ }
bool
isFlag(const char *arg, char shortFlagName, const char *longFlagName) {
return strcmp(arg, longFlagName) == 0
|| (shortFlagName != '\0' && arg[0] == '-'
&& arg[1] == shortFlagName && arg[2] == '\0');
}
inline bool
isValueFlag(int argc, int i, const char *arg, char shortFlagName, const char *longFlagName) {
if (isFlag(arg, shortFlagName, longFlagName)) {
if (argc >= i + 2) {
return true;
} else {
fprintf(stderr, "ERROR: extra argument required for %s\n", arg);
usage();
exit(1);
return false; // Never reached
}
} else {
return false;
}
}
};
} // namespace Passenger
#endif /* _PASSENGER_OPTION_PARSING_H_ */
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