ArgException.h

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// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
 
/******************************************************************************
 *
 *  file:  ArgException.h
 *
 *  Copyright (c) 2003, Michael E. Smoot .
 *  Copyright (c) 2017 Google LLC
 *  All rights reserved.
 *
 *  See the file COPYING in the top directory of this distribution for
 *  more information.
 *
 *  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 TCLAP_ARG_EXCEPTION_H
#define TCLAP_ARG_EXCEPTION_H
 
#include <exception>
#include <string>
 
namespace TCLAP {
 
class ArgException : public std::exception {
public:
    ArgException(const std::string &text = "undefined exception",
                 const std::string &id = "undefined",
                 const std::string &td = "Generic ArgException")
        : std::exception(),
          _errorText(text),
          _argId(id),
          _typeDescription(td),
          _what(_argId + " -- " + _errorText) {}
 
    virtual ~ArgException() throw() {}
 
    std::string error() const { return (_errorText); }
 
    std::string argId() const {
        if (_argId == "undefined")
            return " ";
        else
            return ("Argument: " + _argId);
    }
 
    const char *what() const throw() {
        return _what.c_str();
    }
 
    std::string typeDescription() const { return _typeDescription; }
 
private:
    std::string _errorText;
 
    std::string _argId;
 
    std::string _typeDescription;
 
    // Prepared in the constructor: what() cannot allocate or throw.
    std::string _what;
};
 
class ArgParseException : public ArgException {
public:
    ArgParseException(const std::string &text = "undefined exception",
                      const std::string &id = "undefined")
        : ArgException(text, id,
                       std::string("Exception found while parsing ") +
                           std::string("the value the Arg has been passed.")) {}
};
 
class CmdLineParseException : public ArgException {
public:
    CmdLineParseException(const std::string &text = "undefined exception",
                          const std::string &id = "undefined")
        : ArgException(text, id,
                       std::string("Exception found when the values ") +
                           std::string("on the command line do not meet ") +
                           std::string("the requirements of the defined ") +
                           std::string("Args.")) {}
};
 
class SpecificationException : public ArgException {
public:
    SpecificationException(const std::string &text = "undefined exception",
                           const std::string &id = "undefined")
        : ArgException(text, id,
                       std::string("Exception found when an Arg object ") +
                           std::string("is improperly defined by the ") +
                           std::string("developer.")) {}
};
 
class ExitException {
public:
    explicit ExitException(int estat) : _estat(estat) {}
 
    int getExitStatus() const { return _estat; }
 
private:
    int _estat;
};
 
}  // namespace TCLAP
 
#endif  // TCLAP_ARG_EXCEPTION_H