Added TClap command line parsing library

src/tclap/ArgException.h

@@ -0,0 +1,200 @@
+// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
+
+/****************************************************************************** 
+ * 
+ *  file:  ArgException.h
+ * 
+ *  Copyright (c) 2003, Michael E. Smoot .
+ *  All rights reverved.
+ * 
+ *  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 <string>
+#include <exception>
+
+namespace TCLAP {
+
+/**
+ * A simple class that defines and argument exception.  Should be caught
+ * whenever a CmdLine is created and parsed.
+ */
+class ArgException : public std::exception
+{
+	public:
+	
+		/**
+		 * Constructor.
+		 * \param text - The text of the exception.
+		 * \param id - The text identifying the argument source.
+		 * \param td - Text describing the type of ArgException it is.
+		 * of the exception.
+		 */
+		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)
+		{ } 
+		
+		/**
+		 * Destructor.
+		 */
+		virtual ~ArgException() throw() { }
+
+		/**
+		 * Returns the error text.
+		 */
+		std::string error() const { return ( _errorText ); }
+
+		/**
+		 * Returns the argument id.
+		 */
+		std::string argId() const  
+		{ 
+			if ( _argId == "undefined" )
+				return " ";
+			else
+				return ( "Argument: " + _argId ); 
+		}
+
+		/**
+		 * Returns the arg id and error text. 
+		 */
+		const char* what() const throw() 
+		{
+			static std::string ex; 
+			ex = _argId + " -- " + _errorText;
+			return ex.c_str();
+		}
+
+		/**
+		 * Returns the type of the exception.  Used to explain and distinguish
+		 * between different child exceptions.
+		 */
+		std::string typeDescription() const
+		{
+			return _typeDescription; 
+		}
+
+
+	private:
+
+		/**
+		 * The text of the exception message.
+		 */
+		std::string _errorText;
+
+		/**
+		 * The argument related to this exception.
+		 */
+		std::string _argId;
+
+		/**
+		 * Describes the type of the exception.  Used to distinguish
+		 * between different child exceptions.
+		 */
+		std::string _typeDescription;
+
+};
+
+/**
+ * Thrown from within the child Arg classes when it fails to properly
+ * parse the argument it has been passed.
+ */
+class ArgParseException : public ArgException
+{ 
+	public:
+		/**
+		 * Constructor.
+		 * \param text - The text of the exception.
+		 * \param id - The text identifying the argument source 
+		 * of the exception.
+		 */
+		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." ))
+			{ }
+};
+
+/**
+ * Thrown from CmdLine when the arguments on the command line are not
+ * properly specified, e.g. too many arguments, required argument missing, etc.
+ */
+class CmdLineParseException : public ArgException
+{
+	public:
+		/**
+		 * Constructor.
+		 * \param text - The text of the exception.
+		 * \param id - The text identifying the argument source 
+		 * of the exception.
+		 */
+		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." ))
+		{ }
+};
+
+/**
+ * Thrown from Arg and CmdLine when an Arg is improperly specified, e.g. 
+ * same flag as another Arg, same name, etc.
+ */
+class SpecificationException : public ArgException
+{
+	public:
+		/**
+		 * Constructor.
+		 * \param text - The text of the exception.
+		 * \param id - The text identifying the argument source 
+		 * of the exception.
+		 */
+		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:
+	ExitException(int estat) : _estat(estat) {}
+
+	int getExitStatus() const { return _estat; }
+
+private:
+	int _estat;
+};
+
+} // namespace TCLAP
+
+#endif
+