1 files changed, 212 insertions, 0 deletions

diff --git a/heimdall/source/Arguments.cpp b/heimdall/source/Arguments.cpp
new file mode 100644
index 0000000..321c12f
--- /dev/null
+++ b/heimdall/source/Arguments.cpp
@@ -0,0 +1,212 @@
+/* Copyright (c) 2010-2012 Benjamin Dobell, Glass Echidna
+ 
+ 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.*/
+
+// Heimdall
+#include "Arguments.h"
+#include "Heimdall.h"
+#include "Interface.h"
+#include "Utility.h"
+
+using namespace Heimdall;
+
+FlagArgument *FlagArgument::ParseArgument(int argc, char **argv, int& argi)
+{
+	return new FlagArgument();
+}
+
+
+
+StringArgument *StringArgument::ParseArgument(int argc, char **argv, int& argi)
+{
+	if (++argi < argc)
+	{
+		return (new StringArgument(argv[argi]));
+	}
+	else
+	{
+		Interface::Print("Missing parameter for argument: %s\n\n", argv[argi - 1]);
+		return (nullptr);
+	}
+}
+
+
+
+UnsignedIntegerArgument *UnsignedIntegerArgument::ParseArgument(int argc, char **argv, int& argi)
+{
+	UnsignedIntegerArgument *unsignedIntegerArgument = nullptr;
+
+	if (++argi < argc)
+	{
+		unsigned int value;
+		
+		if (Utility::ParseUnsignedInt(value, argv[argi]) == kNumberParsingStatusSuccess)
+			unsignedIntegerArgument = new UnsignedIntegerArgument(value);
+		else
+			Interface::Print("%s must be a positive integer.", argv[argi - 1]);
+	}
+	else
+	{
+		Interface::Print("Missing parameter for argument: %s\n\n", argv[argi - 1]);
+	}
+
+	return (unsignedIntegerArgument);
+}
+
+
+
+Arguments::Arguments(const map<string, ArgumentType>& argumentTypes, const map<string, string>& shortArgumentAliases,
+	const map<string, string> argumentAliases) :
+		argumentTypes(argumentTypes),
+		shortArgumentAliases(shortArgumentAliases),
+		argumentAliases(argumentAliases)
+{
+}
+
+Arguments::~Arguments()
+{
+	for (map<string, Argument *>::const_iterator it = arguments.begin(); it != arguments.end(); it++)
+		delete it->second;
+}
+
+bool Arguments::ParseArguments(int argc, char **argv, int argi)
+{
+	for (; argi < argc; ++argi)
+	{
+		string argumentName = argv[argi];
+		string nonwildcardArgumentName;
+
+		if (argumentName.find_first_of("--") == 0)
+		{
+			// Regular argument
+			argumentName = argumentName.substr(2);
+			nonwildcardArgumentName = argumentName;
+		}
+		else if (argumentName.find_first_of("-") == 0)
+		{
+			// Short argument alias
+			string shortArgumentAlias = argumentName.substr(1);
+			map<string, string>::const_iterator shortAliasIt = shortArgumentAliases.find(shortArgumentAlias);
+
+			if (shortAliasIt != shortArgumentAliases.end())
+			{
+				argumentName = shortAliasIt->second;
+				nonwildcardArgumentName = argumentName;
+			}
+			else
+			{
+				Interface::Print("Unknown argument: %s\n\n", argv[argi]);
+				return (false);
+			}
+		}
+		else
+		{
+			Interface::Print("Invalid argument: %s\n\n", argv[argi]);
+			return (false);
+		}
+
+		map<string, ArgumentType>::const_iterator argumentTypeIt = argumentTypes.find(argumentName);
+
+		if (argumentTypeIt == argumentTypes.end())
+		{
+			// No argument with that name, maybe it's an alias...
+			map<string, string>::const_iterator aliasIt = argumentAliases.find(argumentName);
+
+			if (aliasIt != argumentAliases.end())
+			{
+				argumentName = aliasIt->second;
+				nonwildcardArgumentName = argumentName;
+
+				argumentTypeIt = argumentTypes.find(argumentName);
+			}
+		}
+
+		// Handle wilcards
+		
+		unsigned int unsignedIntName;
+		
+		if (argumentTypeIt == argumentTypes.end())
+		{
+			// Look for the unsigned integer wildcard "%d".
+			if (Utility::ParseUnsignedInt(unsignedIntName, argumentName.c_str()) == kNumberParsingStatusSuccess)
+			{
+				argumentTypeIt = argumentTypes.find("%d");
+				argumentName = "%d";
+			}
+
+			// Look for the string wildcard "%s"
+			if (argumentTypeIt == argumentTypes.end())
+			{
+				argumentTypeIt = argumentTypes.find("%s");
+				argumentName = "%s";
+			}
+		}
+
+		Argument *argument = nullptr;
+		
+		if (argumentTypeIt != argumentTypes.end())
+		{
+			switch (argumentTypeIt->second)
+			{
+				case kArgumentTypeFlag:
+					argument = FlagArgument::ParseArgument(argc, argv, argi);
+					break;
+
+				case kArgumentTypeString:
+					argument = StringArgument::ParseArgument(argc, argv, argi);
+					break;
+
+				case kArgumentTypeUnsignedInteger:
+					argument = UnsignedIntegerArgument::ParseArgument(argc, argv, argi);
+					break;
+
+				default:
+					Interface::Print("Unknown argument type: %s\n\n", argv[argi]);
+					break;
+			}
+		}
+		else
+		{
+			Interface::Print("Unknown argument: %s\n\n", argv[argi]);
+		}
+
+		// We don't want to insert wild-cards into our argument map.
+		if (argumentName == "%d" || argumentName == "%s")
+			argumentName = nonwildcardArgumentName;
+
+		if (argument)
+		{
+			pair<map<string, Argument *>::iterator, bool> insertResult = arguments.insert(pair<string, Argument *>(argumentName, argument));
+
+			if (!insertResult.second)
+			{
+				Interface::Print("Duplicate argument: %s (%s)\n\n", argv[argi], insertResult.first->first.c_str());
+				delete argument;
+
+				return (false);
+			}
+		}
+		else
+		{
+			return (false);
+		}
+	}
+
+	return (true);
+}