Move all the things (YES. Move them.)

Also, implemented some basic modlist logic, to be wired up.

1 files changed, 259 insertions, 0 deletions

diff --git a/depends/util/include/cmdutils.h b/depends/util/include/cmdutils.h
new file mode 100644
index 00000000..a6379397
--- /dev/null
+++ b/depends/util/include/cmdutils.h
@@ -0,0 +1,259 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CMDUTILS_H
+#define CMDUTILS_H
+
+#include <exception>
+
+#include <QString>
+#include <QVariant>
+#include <QHash>
+#include <QStringList>
+
+#include "libutil_config.h"
+
+/**
+ * @file libutil/include/cmdutils.h
+ * @brief commandline parsing and processing utilities
+ */
+
+namespace Util {
+namespace Commandline {
+
+/**
+ * @brief split a string into argv items like a shell would do
+ * @param args the argument string
+ * @return a QStringList containing all arguments
+ */
+LIBUTIL_EXPORT QStringList splitArgs(QString args);
+
+/**
+ * @brief The FlagStyle enum
+ * Specifies how flags are decorated
+ */
+
+namespace FlagStyle
+{
+enum LIBUTIL_EXPORT Enum
+{
+	GNU,     /**< --option and -o (GNU Style) */
+	Unix,    /**< -option and -o  (Unix Style) */
+	Windows, /**< /option and /o  (Windows Style) */
+#ifdef Q_OS_WIN32
+	Default = Windows
+#else
+	Default = GNU
+#endif
+};
+}
+
+/**
+ * @brief The ArgumentStyle enum
+ */
+namespace ArgumentStyle 
+{
+enum LIBUTIL_EXPORT Enum
+{
+	Space,          /**< --option=value */
+	Equals,         /**< --option value */
+	SpaceAndEquals, /**< --option[= ]value */
+#ifdef Q_OS_WIN32
+	Default = Equals
+#else
+	Default = SpaceAndEquals
+#endif
+};
+}
+
+/**
+ * @brief The ParsingError class
+ */
+class LIBUTIL_EXPORT ParsingError : public std::exception
+{
+public:
+	ParsingError(const QString &what);
+	ParsingError(const ParsingError &e);
+	~ParsingError() throw() {}
+	const char *what() const throw();
+	QString qwhat() const;
+private:
+	QString m_what;
+};
+
+/**
+ * @brief The Parser class
+ */
+class LIBUTIL_EXPORT Parser
+{
+public:
+	/**
+	 * @brief Parser constructor
+	 * @param flagStyle the FlagStyle to use in this Parser
+	 * @param argStyle the ArgumentStyle to use in this Parser
+	 */
+	Parser(FlagStyle::Enum flagStyle = FlagStyle::Default, 
+		   ArgumentStyle::Enum argStyle = ArgumentStyle::Default);
+	
+	/**
+	 * @brief set the flag style
+	 * @param style
+	 */
+	void setFlagStyle(FlagStyle::Enum style);
+	
+	/**
+	 * @brief get the flag style
+	 * @return
+	 */
+	FlagStyle::Enum flagStyle();
+	
+	/**
+	 * @brief set the argument style
+	 * @param style
+	 */
+	void setArgumentStyle(ArgumentStyle::Enum style);
+	
+	/**
+	 * @brief get the argument style
+	 * @return
+	 */
+	ArgumentStyle::Enum argumentStyle();
+	
+	/**
+	 * @brief define a boolean switch
+	 * @param name the parameter name
+	 * @param def the default value
+	 */
+	void addSwitch(QString name, bool def = false);
+	
+	/**
+	 * @brief define an option that takes an additional argument
+	 * @param name the parameter name
+	 * @param def the default value
+	 */
+	void addOption(QString name, QVariant def = QVariant());
+	
+	/**
+	 * @brief define a positional argument
+	 * @param name the parameter name
+	 * @param required wether this argument is required
+	 * @param def the default value
+	 */
+	void addArgument(QString name, bool required = true, QVariant def = QVariant());
+	
+	/**
+	 * @brief adds a flag to an existing parameter
+	 * @param name the (existing) parameter name
+	 * @param flag the flag character
+	 * @see addSwitch addArgument addOption
+	 * Note: any one parameter can only have one flag
+	 */
+	void addShortOpt(QString name, QChar flag);
+	
+	/**
+	 * @brief adds documentation to a Parameter
+	 * @param name the parameter name
+	 * @param metavar a string to be displayed as placeholder for the value
+	 * @param doc a QString containing the documentation
+	 * Note: on positional arguments, metavar replaces the name as displayed.
+	 *       on options , metavar replaces the value placeholder
+	 */
+	void addDocumentation(QString name, QString doc, QString metavar = QString());
+	
+	/**
+	 * @brief generate a help message
+	 * @param progName the program name to use in the help message
+	 * @param helpIndent how much the parameter documentation should be indented
+	 * @param flagsInUsage whether we should use flags instead of options in the usage
+	 * @return a help message
+	 */
+	QString compileHelp(QString progName, int helpIndent = 22, bool flagsInUsage = true);
+	
+	/**
+	 * @brief generate a short usage message
+	 * @param progName the program name to use in the usage message
+	 * @param useFlags whether we should use flags instead of options
+	 * @return a usage message
+	 */
+	QString compileUsage(QString progName, bool useFlags = true);
+	
+	/**
+	 * @brief parse
+	 * @param argv a QStringList containing the program ARGV
+	 * @return a QHash mapping argument names to their values
+	 */
+	QHash<QString, QVariant> parse(QStringList argv);
+	
+	/**
+	 * @brief clear all definitions
+	 */
+	void clear();
+	
+	~Parser();
+	
+private:
+	FlagStyle::Enum m_flagStyle;
+	ArgumentStyle::Enum m_argStyle;
+
+	enum OptionType
+	{
+		otSwitch,
+		otOption
+	};
+	
+	// Important: the common part MUST BE COMMON ON ALL THREE structs
+	struct CommonDef {
+		QString name;
+		QString doc;
+		QString metavar;
+		QVariant def;
+	};
+	
+	struct OptionDef {
+		// common
+		QString name;
+		QString doc;
+		QString metavar;
+		QVariant def;
+		// option
+		OptionType type;
+		QChar flag;
+	};
+	
+	struct PositionalDef {
+		// common
+		QString name;
+		QString doc;
+		QString metavar;
+		QVariant def;
+		// positional
+		bool required;
+	};
+	
+	QHash<QString, OptionDef *> m_options;
+	QHash<QChar, OptionDef *> m_flags;
+	QHash<QString, CommonDef *> m_params;
+	QList<PositionalDef *> m_positionals;
+	QList<OptionDef *> m_optionList;
+	
+	void getPrefix(QString &opt, QString &flag);
+};
+
+}
+}
+
+#endif // CMDUTILS_H