Delete Args

engine/core/args.h

@@ -1,264 +0,0 @@
-/*
-Copyright (c) 2013 Daniele Bartolini, Michele Rossi
-Copyright (c) 2012 Daniele Bartolini, Simone Boscaratto
-
-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.
-*/
-
-#pragma once
-
-#include "assert.h"
-#include "types.h"
-#include "string_utils.h"
-
-namespace crown
-{
-
-enum ArgsOptionType
-{
-	AOT_SHORT,
-	AOT_LONG,
-	AOT_NOT_OPTION
-};
-
-enum ArgsOptionArgument
-{
-	AOA_NO_ARGUMENT,
-	AOA_REQUIRED_ARGUMENT
-};
-
-struct ArgsOption
-{
-	const char* name;
-	int32_t has_arg;
-	int32_t* flag;
-	int32_t val;
-};
-
-/// Parses the command line arguments in a way very similar to GNU getopt.
-class Args
-{
-public:
-
-	Args(int argc, char** argv, const char* shortopts, const ArgsOption* longopts)
-		: m_argc(argc)
-		, m_argv(argv)
-		, m_shortopts(shortopts)
-		, m_longopts(longopts)
-		, m_optind(1)				// Do not consider argv[0]
-		, m_scope(argc)
-		, m_optarg(NULL)
-	{
-		CE_ASSERT(argv != NULL, "Argument vector must be != NULL");
-		CE_ASSERT(shortopts != NULL, "Short argument list must be != NULL");
-		// longopts could be NULL
-	}
-
-	/// Finds the next option character and returns it.
-	/// If there are no more option characters, it returns -1 and optind()
-	/// returns the index in argv[] of the first argv-element that is not
-	/// an option.
-	/// If it finds an option that was not included in shortopts or longopts,
-	/// or if it finds a missing option argument, it returns '?' character.
-	int32_t getopt()
-	{
-		// Always reset optarg
-		m_optarg = NULL;
-
-		// End of arguments
-		if (m_optind >= m_scope)
-		{
-			return -1;
-		}
-
-		switch (option_type(m_argv[m_optind]))
-		{
-			case AOT_SHORT:
-			{
-				return short_option(m_argv[m_optind]);
-			}
-			case AOT_LONG:
-			{
-				return long_option(m_argv[m_optind]);
-			}
-			case AOT_NOT_OPTION:
-			{
-				not_option();
-				return getopt();
-			}
-			default:
-			{
-				return '?';
-			}
-		}
-	}
-
-	/// Returns the index of the next argument to be processed.
-	int32_t optind() const
-	{
-		return m_optind;
-	}
-
-	/// Returns the text of the following argv-element in respect
-	/// to the current optind().
-	const char* optarg() const
-	{
-		return m_optarg;
-	}
-
-
-	/// Sets the @a index into argv[] from where to start option scanning.
-	/// If @a index >= argc nothing will be scanned.
-	void set_optind(int32_t index)
-	{
-		m_optind = index;
-	}
-
-private:
-
-	// Returns the @a option type
-	// Returns AOT_SHORT if option is of the form "-x" where 'x' is the option.
-	// Returns AOT_LONG if option is of the form "--option" where "option" is the option.
-	// Returns AOT_NOT_OPTION in all other cases.
-	ArgsOptionType option_type(const char* option)
-	{
-		const size_t option_len = string::strlen(option);
-
-		if (option_len == 2 && option[0] == '-' && option[1] != '-')
-		{
-			return AOT_SHORT;
-		}
-		else if (option_len > 2 && option[0] == '-' && option[1] == '-')
-		{
-			return AOT_LONG;
-		}
-
-		return AOT_NOT_OPTION;
-	}
-
-
-	// Parses a long option
-	int32_t long_option(const char* option)
-	{
-		const ArgsOption* current_option = m_longopts;
-
-		// Loop through all the long options
-		while (!end_of_longopts(current_option))
-		{
-			if (string::strcmp(current_option->name, &option[2]) == 0)
-			{
-				// If the option requires an argument
-				if (current_option->has_arg == AOA_REQUIRED_ARGUMENT)
-				{
-					// Read the argument if it exists
-					if ((m_optind + 1) < m_scope)
-					{
-						// Read the argument and skip the following parameter
-						m_optarg = m_argv[m_optind + 1];
-						m_optind += 2;
-					}
-					else
-					{
-						// CE_LOGE("%s: option requires an argument -- '%s'", m_argv[0], current_option->name);
-
-						// Missing option
-						m_optind += 1;
-						return '?';
-					}
-				}
-				// If the option does not require an argument
-				else
-				{
-					m_optind++;
-				}
-
-				if (current_option->flag == NULL)
-				{
-					return current_option->val;
-				}
-				else
-				{
-					(*current_option->flag) = current_option->val;
-
-					return 0;
-				}
-			}
-
-			current_option++;
-		}
-
-		// Found a long option but was not included in longopts
-		// CE_LOGE("%s: invalid option -- '%s'", m_argv[0], &option[2]);
-		m_optind++;
-		return '?';
-	}
-
-	// Parses a short option
-	int32_t short_option(const char* option)
-	{
-		(void)option;
-
-		// CE_LOGE("%s: invalid option -- '%s'", m_argv[0], &option[1]);
-		m_optind++;
-		return '?';
-	}
-
-	void not_option()
-	{
-		char* current_option = m_argv[m_optind];
-
-		for (int32_t i = m_optind; i < (m_argc - 1); i++)
-		{
-			m_argv[i] = m_argv[i + 1];
-		}
-
-		m_argv[m_argc - 1] = current_option;
-
-		// Reduce the number of true arguments
-		m_scope--;
-	}
-
-	// Returns whether the given option is the last one
-	bool end_of_longopts(const ArgsOption* option) const
-	{
-		return (option->name == NULL && option->has_arg == 0 && option->flag == NULL && option->val == 0);
-	}
-
-private:
-
-	int m_argc;
-	char** m_argv;
-
-	const char* m_shortopts;
-	const ArgsOption* m_longopts;
-
-	// Index of the next argument to be processed
-	int32_t m_optind;
-
-	// Number of "true" arguments
-	int32_t m_scope;
-
-	// The text of the following argv-element to argv[optind]
-	char* m_optarg;
-};
-
-} // namespace crown