Merge branch 'master' of somweyr.de:ousia

1 files changed, 0 insertions, 361 deletions

diff --git a/src/core/parser/ParserStack.hpp b/src/core/parser/ParserStack.hpp
deleted file mode 100644
index efc4e4a..0000000
--- a/src/core/parser/ParserStack.hpp
+++ /dev/null
@@ -1,361 +0,0 @@
-/*
-    Ousía
-    Copyright (C) 2014, 2015  Benjamin Paaßen, Andreas Stöckel
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file ParserStack.hpp
- *
- * Helper classes for document or description parsers. Contains the ParserStack
- * class, which is an pushdown automaton responsible for accepting commands in
- * the correct order and calling specified handlers.
- *
- * @author Andreas Stöckel (astoecke@techfak.uni-bielefeld.de)
- */
-
-#ifndef _OUSIA_PARSER_STACK_HPP_
-#define _OUSIA_PARSER_STACK_HPP_
-
-#include <cstdint>
-
-#include <map>
-#include <memory>
-#include <set>
-#include <stack>
-#include <vector>
-
-#include <core/common/Variant.hpp>
-#include <core/common/Logger.hpp>
-#include <core/common/Argument.hpp>
-
-#include "Parser.hpp"
-#include "ParserContext.hpp"
-#include "ParserState.hpp"
-
-namespace ousia {
-
-/**
- * Struct collecting all the data that is being passed to a Handler instance.
- */
-struct HandlerData {
-	/**
-	 * Reference to the ParserContext instance that should be used to resolve
-	 * references to nodes in the Graph.
-	 */
-	ParserContext &ctx;
-
-	/**
-	 * Contains the name of the tag that is being handled.
-	 */
-	const std::string name;
-
-	/**
-	 * Contains the current state of the state machine.
-	 */
-	const ParserState &state;
-
-	/**
-	 * Contains the state of the state machine when the parent node was handled.
-	 */
-	const ParserState &parentState;
-
-	/**
-	 * Current source code location.
-	 */
-	const SourceLocation location;
-
-	/**
-	 * Constructor of the HandlerData class.
-	 *
-	 * @param ctx is the parser context the handler should be executed in.
-	 * @param name is the name of the string.
-	 * @param state is the state this handler was called for.
-	 * @param parentState is the state of the parent command.
-	 * @param location is the location at which the handler is created.
-	 */
-	HandlerData(ParserContext &ctx, std::string name, const ParserState &state,
-	            const ParserState &parentState, const SourceLocation location)
-	    : ctx(ctx),
-	      name(std::move(name)),
-	      state(state),
-	      parentState(parentState),
-	      location(location){};
-};
-
-/**
- * The handler class provides a context for handling an XML tag. It has to be
- * overridden and registered in the StateStack class to form handlers for
- * concrete XML tags.
- */
-class Handler {
-private:
-	/**
-	 * Structure containing the internal handler data.
-	 */
-	const HandlerData handlerData;
-
-public:
-	/**
-	 * Constructor of the Handler class.
-	 *
-	 * @param data is a structure containing all data being passed to the
-	 * handler.
-	 */
-	Handler(const HandlerData &handlerData) : handlerData(handlerData){};
-
-	/**
-	 * Virtual destructor.
-	 */
-	virtual ~Handler(){};
-
-	/**
-	 * Returns a reference at the ParserContext.
-	 *
-	 * @return a reference at the ParserContext.
-	 */
-	ParserContext &context() { return handlerData.ctx; }
-
-	/**
-	 * Returns the command name for which the handler was created.
-	 *
-	 * @return a const reference at the command name.
-	 */
-	const std::string &name() { return handlerData.name; }
-
-	/**
-	 * Returns a reference at the ParserScope instance.
-	 *
-	 * @return a reference at the ParserScope instance.
-	 */
-	ParserScope &scope() { return handlerData.ctx.getScope(); }
-
-	/**
-	 * Returns a reference at the Manager instance which manages all nodes.
-	 *
-	 * @return a referance at the Manager instance.
-	 */
-	Manager &manager() { return handlerData.ctx.getManager(); }
-
-	/**
-	 * Returns a reference at the Logger instance used for logging error
-	 * messages.
-	 *
-	 * @return a reference at the Logger instance.
-	 */
-	Logger &logger() { return handlerData.ctx.getLogger(); }
-
-	/**
-	 * Returns a reference at the Project Node, representing the project into
-	 * which the file is currently being parsed.
-	 *
-	 * @return a referance at the Project Node.
-	 */
-	Rooted<Project> project() { return handlerData.ctx.getProject(); }
-
-	/**
-	 * Reference at the ParserState descriptor for which this Handler was
-	 * created.
-	 *
-	 * @return a const reference at the constructing ParserState descriptor.
-	 */
-	const ParserState &state() { return handlerData.state; }
-
-	/**
-	 * Reference at the ParserState descriptor of the parent state of the state
-	 * for which this Handler was created. Set to ParserStates::None if there
-	 * is no parent state.
-	 *
-	 * @return a const reference at the parent state of the constructing
-	 * ParserState descriptor.
-	 */
-	const ParserState &parentState() { return handlerData.parentState; }
-
-	/**
-	 * Returns the current location in the source file.
-	 *
-	 * @return the current location in the source file.
-	 */
-	SourceLocation location() { return handlerData.location; }
-
-	/**
-	 * Called when the command that was specified in the constructor is
-	 * instanciated.
-	 *
-	 * @param args is a map from strings to variants (argument name and value).
-	 */
-	virtual void start(Variant::mapType &args) = 0;
-
-	/**
-	 * Called whenever the command for which this handler is defined ends.
-	 */
-	virtual void end() = 0;
-
-	/**
-	 * Called whenever raw data (int the form of a string) is available for the
-	 * Handler instance. In the default handler an exception is raised if the
-	 * received data contains non-whitespace characters.
-	 *
-	 * @param data is a pointer at the character data that is available for the
-	 * Handler instance.
-	 * @param field is the field number (the interpretation of this value
-	 * depends on the format that is being parsed).
-	 */
-	virtual void data(const std::string &data, int field);
-};
-
-/**
- * HandlerConstructor is a function pointer type used to create concrete
- * instances of the Handler class.
- *
- * @param handlerData is the data that should be passed to the new handler
- * instance.
- * @return a newly created handler instance.
- */
-using HandlerConstructor = Handler *(*)(const HandlerData &handlerData);
-
-/**
- * The ParserStack class is a pushdown automaton responsible for turning a
- * command stream into a tree of Node instances.
- */
-class ParserStack {
-private:
-	/**
-	 * Reference at the parser context.
-	 */
-	ParserContext &ctx;
-
-	/**
-	 * Map containing all registered command names and the corresponding
-	 * state descriptors.
-	 */
-	const std::multimap<std::string, const ParserState *> &states;
-
-	/**
-	 * Internal stack used for managing the currently active Handler instances.
-	 */
-	std::stack<std::shared_ptr<Handler>> stack;
-
-	/**
-	 * Used internally to get all expected command names for the current state.
-	 * This function is used to build error messages.
-	 *
-	 * @return a set of strings containing the names of the expected commands.
-	 */
-	std::set<std::string> expectedCommands();
-
-	/**
-	 * Returns the targetState for a command with the given name that can be
-	 * reached from for the current state.
-	 *
-	 * @param name is the name of the requested command.
-	 * @return nullptr if no target state was found, a pointer at the target
-	 *state
-	 * otherwise.
-	 */
-	const ParserState *findTargetState(const std::string &name);
-
-public:
-	/**
-	 * Creates a new instance of the ParserStack class.
-	 *
-	 * @param ctx is the parser context the parser stack is working on.
-	 * @param states is a map containing the command names and pointers at the
-	 * corresponding ParserState instances.
-	 */
-	ParserStack(ParserContext &ctx,
-	            const std::multimap<std::string, const ParserState *> &states);
-
-	/**
-	 * Tries to reconstruct the parser state from the Scope instance of the
-	 * ParserContext given in the constructor. This functionality is needed for
-	 * including files,as the Parser of the included file needs to be brought to
-	 + an equivalent state as the one in the including file.
-	 *
-	 * @param scope is the ParserScope instance from which the ParserState
-	 * should be reconstructed.
-	 * @param logger is the logger instance to which error messages should be
-	 * written.
-	 * @return true if the operation was sucessful, false otherwise.
-	 */
-	bool deduceState();
-
-	/**
-	 * Returns the state the ParserStack instance currently is in.
-	 *
-	 * @return the state of the currently active Handler instance or STATE_NONE
-	 * if no handler is on the stack.
-	 */
-	const ParserState &currentState();
-
-	/**
-	 * Returns the command name that is currently being handled.
-	 *
-	 * @return the name of the command currently being handled by the active
-	 * Handler instance or an empty string if no handler is currently active.
-	 */
-	std::string currentCommandName();
-
-	/**
-	 * Function that should be called whenever a new command starts.
-	 *
-	 * @param name is the name of the command.
-	 * @param args is a map from strings to variants (argument name and value).
-	 * Note that the passed map will be modified.
-	 * @param location is the location in the source file at which the command
-	 * starts.
-	 */
-	void start(const std::string &name, Variant::mapType &args,
-	           const SourceLocation &location = SourceLocation{});
-
-	/**
-	 * Function that should be called whenever a new command starts.
-	 *
-	 * @param name is the name of the command.
-	 * @param args is a map from strings to variants (argument name and value).
-	 * @param location is the location in the source file at which the command
-	 * starts.
-	 */
-	void start(std::string name,
-	           const Variant::mapType &args = Variant::mapType{},
-	           const SourceLocation &location = SourceLocation{});
-
-	/**
-	 * Function called whenever a command ends.
-	 */
-	void end();
-
-	/**
-	 * Function that should be called whenever data is available for the
-	 * command.
-	 *
-	 * @param data is the data that should be passed to the handler.
-	 * @param field is the field number (the interpretation of this value
-	 * depends on the format that is being parsed).
-	 */
-	void data(const std::string &data, int field = 0);
-
-	/**
-	 * Returns a reference to the parser context the parser stack is currently
-	 * working on.
-	 *
-	 * @return a reference to the parser context.
-	 */
-	ParserContext &getContext() { return ctx; }
-};
-}
-
-#endif /* _OUSIA_PARSER_STACK_HPP_ */
-