From 14b3a5c80ae0336de0d34d0d05fad6efc994462c Mon Sep 17 00:00:00 2001 From: Andreas Stöckel Date: Fri, 28 Nov 2014 14:42:03 +0100 Subject: moved some files --- src/core/Parser.cpp | 32 ---------- src/core/Parser.hpp | 116 ------------------------------------ src/core/parser/Parser.cpp | 32 ++++++++++ src/core/parser/Parser.hpp | 116 ++++++++++++++++++++++++++++++++++++ src/core/parser/XmlParser.cpp | 134 ------------------------------------------ src/core/parser/XmlParser.hpp | 63 -------------------- 6 files changed, 148 insertions(+), 345 deletions(-) delete mode 100644 src/core/Parser.cpp delete mode 100644 src/core/Parser.hpp create mode 100644 src/core/parser/Parser.cpp create mode 100644 src/core/parser/Parser.hpp delete mode 100644 src/core/parser/XmlParser.cpp delete mode 100644 src/core/parser/XmlParser.hpp (limited to 'src/core') diff --git a/src/core/Parser.cpp b/src/core/Parser.cpp deleted file mode 100644 index bc98ac0..0000000 --- a/src/core/Parser.cpp +++ /dev/null @@ -1,32 +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 . -*/ - -#include - -#include "Parser.hpp" - -namespace ousia { - -Rooted Parser::parse(const std::string &str, Handle context, Logger &logger) -{ - std::istringstream is(str); - return parse(is, context, logger); -} - -} - diff --git a/src/core/Parser.hpp b/src/core/Parser.hpp deleted file mode 100644 index 74a1988..0000000 --- a/src/core/Parser.hpp +++ /dev/null @@ -1,116 +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 . -*/ - -/** - * @file Parser.hpp - * - * Contains the abstract "Parser" class. Parsers are objects capable of reading - * a certain file format and transforming it into a node. - * - * @author Andreas Stöckel (astoecke@techfak.uni-bielefeld.de) - */ - -#ifndef _OUSIA_PARSER_HPP_ -#define _OUSIA_PARSER_HPP_ - -#include -#include -#include - -#include "Exceptions.hpp" -#include "Node.hpp" -#include "Logger.hpp" - -namespace ousia { - -// TODO: Implement a proper Mimetype class - -/** - * Exception to be thrown whenever an error occurs inside a specific parser. - */ -class ParserException : public LoggableException { -public: - using LoggableException::LoggableException; -}; - -/** - * Abstract parser class. This class builds the basic interface that should be - * used by any parser which reads data from an input stream and transforms it - * into an Ousía node graph. - */ -class Parser { -public: - - Parser() {}; - Parser(const Parser&) = delete; - - /** - * Returns a set containing all mime types supported by the parser. The mime - * types are used to describe the type of the document that is read by the - * parser. The default implementation returns an empty set. This method - * should be overridden by derived classes. - * - * @return a set containing the string value of the supported mime types. - */ - virtual std::set mimetypes() - { - return std::set{}; - }; - - /** - * Parses the given input stream and returns a corresponding node for - * inclusion in the document graph. This method should be overridden by - * derived classes. - * - * @param is is a reference to the input stream that should be parsed. - * @param context defines the context in which the input stream should be - * parsed. The context represents the scope from which element names should - * be looked up. - * @param logger is a reference to the Logger instance that should be used - * to log error messages and warnings that occur while parsing the document. - * @return a reference to the node representing the subgraph that has been - * created. The resulting node may point at not yet resolved entities, the - * calling code will try to resolve these. If no valid node can be produced, - * a corresponding LoggableException must be thrown by the parser. - */ - virtual Rooted parse(std::istream &is, Handle context, - Logger &logger) = 0; - - /** - * Parses the given string and returns a corresponding node for - * inclusion in the document graph. This method should be overridden by - * derived classes. - * - * @param str is the string that should be parsed. - * @param context defines the context in which the input stream should be - * parsed. The context represents the scope from which element names should - * be looked up. - * @param logger is a reference to the Logger instance that should be used - * to log error messages and warnings that occur while parsing the document. - * @return a reference to the node representing the subgraph that has been - * created. The resulting node may point at not yet resolved entities, the - * calling code will try to resolve these. If no valid node can be produced, - * a corresponding ParserException must be thrown by the parser. - */ - Rooted parse(const std::string &str, Handle context, - Logger &logger); -}; -} - -#endif /* _OUSIA_PARSER_HPP_ */ - diff --git a/src/core/parser/Parser.cpp b/src/core/parser/Parser.cpp new file mode 100644 index 0000000..bc98ac0 --- /dev/null +++ b/src/core/parser/Parser.cpp @@ -0,0 +1,32 @@ +/* + 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 . +*/ + +#include + +#include "Parser.hpp" + +namespace ousia { + +Rooted Parser::parse(const std::string &str, Handle context, Logger &logger) +{ + std::istringstream is(str); + return parse(is, context, logger); +} + +} + diff --git a/src/core/parser/Parser.hpp b/src/core/parser/Parser.hpp new file mode 100644 index 0000000..74a1988 --- /dev/null +++ b/src/core/parser/Parser.hpp @@ -0,0 +1,116 @@ +/* + 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 . +*/ + +/** + * @file Parser.hpp + * + * Contains the abstract "Parser" class. Parsers are objects capable of reading + * a certain file format and transforming it into a node. + * + * @author Andreas Stöckel (astoecke@techfak.uni-bielefeld.de) + */ + +#ifndef _OUSIA_PARSER_HPP_ +#define _OUSIA_PARSER_HPP_ + +#include +#include +#include + +#include "Exceptions.hpp" +#include "Node.hpp" +#include "Logger.hpp" + +namespace ousia { + +// TODO: Implement a proper Mimetype class + +/** + * Exception to be thrown whenever an error occurs inside a specific parser. + */ +class ParserException : public LoggableException { +public: + using LoggableException::LoggableException; +}; + +/** + * Abstract parser class. This class builds the basic interface that should be + * used by any parser which reads data from an input stream and transforms it + * into an Ousía node graph. + */ +class Parser { +public: + + Parser() {}; + Parser(const Parser&) = delete; + + /** + * Returns a set containing all mime types supported by the parser. The mime + * types are used to describe the type of the document that is read by the + * parser. The default implementation returns an empty set. This method + * should be overridden by derived classes. + * + * @return a set containing the string value of the supported mime types. + */ + virtual std::set mimetypes() + { + return std::set{}; + }; + + /** + * Parses the given input stream and returns a corresponding node for + * inclusion in the document graph. This method should be overridden by + * derived classes. + * + * @param is is a reference to the input stream that should be parsed. + * @param context defines the context in which the input stream should be + * parsed. The context represents the scope from which element names should + * be looked up. + * @param logger is a reference to the Logger instance that should be used + * to log error messages and warnings that occur while parsing the document. + * @return a reference to the node representing the subgraph that has been + * created. The resulting node may point at not yet resolved entities, the + * calling code will try to resolve these. If no valid node can be produced, + * a corresponding LoggableException must be thrown by the parser. + */ + virtual Rooted parse(std::istream &is, Handle context, + Logger &logger) = 0; + + /** + * Parses the given string and returns a corresponding node for + * inclusion in the document graph. This method should be overridden by + * derived classes. + * + * @param str is the string that should be parsed. + * @param context defines the context in which the input stream should be + * parsed. The context represents the scope from which element names should + * be looked up. + * @param logger is a reference to the Logger instance that should be used + * to log error messages and warnings that occur while parsing the document. + * @return a reference to the node representing the subgraph that has been + * created. The resulting node may point at not yet resolved entities, the + * calling code will try to resolve these. If no valid node can be produced, + * a corresponding ParserException must be thrown by the parser. + */ + Rooted parse(const std::string &str, Handle context, + Logger &logger); +}; +} + +#endif /* _OUSIA_PARSER_HPP_ */ + diff --git a/src/core/parser/XmlParser.cpp b/src/core/parser/XmlParser.cpp deleted file mode 100644 index f9bb43e..0000000 --- a/src/core/parser/XmlParser.cpp +++ /dev/null @@ -1,134 +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 . -*/ - -#include - -#include "XmlParser.hpp" - -namespace ousia { - -/** - * The XmlParserData struct holds all information relevant to the expat callback - * functions. - */ -struct XmlParserData { - Rooted context; - Logger &logger; - - XmlParserData(Handle context, Logger &logger) - : context(context), logger(logger) - { - } -}; - -/** - * Wrapper class around the XML_Parser pointer which safely frees it whenever - * the scope is left (e.g. because an exception was thrown). - */ -class ScopedExpatXmlParser { -private: - /** - * Internal pointer to the XML_Parser instance. - */ - XML_Parser parser; - -public: - /** - * Constructor of the ScopedExpatXmlParser class. Calls XML_ParserCreateNS - * from the expat library. Throws a parser exception if the XML parser - * cannot be initialized. - * - * @param encoding is the protocol-defined encoding passed to expat (or - * nullptr if expat should determine the encoding by itself). - * @param namespaceSeparator is the separator used to separate the namespace - * components in the node name given by expat. - */ - ScopedExpatXmlParser(const XML_Char *encoding, XML_Char namespaceSeparator) - : parser(nullptr) - { - parser = XML_ParserCreateNS("UTF-8", ':'); - if (!parser) { - throw ParserException{ - "Internal error: Could not create expat XML parser!"}; - } - } - - /** - * Destuctor of the ScopedExpatXmlParser, frees the XML parser instance. - */ - ~ScopedExpatXmlParser() - { - if (parser) { - XML_ParserFree(parser); - parser = nullptr; - } - } - - /** - * Returns the XML_Parser pointer. - */ - XML_Parser operator&() { return parser; } -}; - -std::set XmlParser::mimetypes() -{ - return std::set{{"text/vnd.ousia.oxm", "text/vnd.ousia.oxd"}}; -} - -Rooted XmlParser::parse(std::istream &is, Handle context, - Logger &logger) -{ - // Create the parser object - ScopedExpatXmlParser p{"UTF-8", ':'}; - - // Set the callback functions, provide a pointer to a XmlParserData instance - // as user data. - XmlParserData ctx{context, logger}; - - // Feed data into expat while there is data to process - const std::streamsize BUFFER_SIZE = 4096; // TODO: Move to own header? - while (true) { - // Fetch a buffer from expat for the input data - char *buf = static_cast(XML_GetBuffer(&p, BUFFER_SIZE)); - if (!buf) { - throw ParserException{"Internal error: XML parser out of memory!"}; - } - - // Read the input data from the stream - const std::streamsize bytesRead = is.read(buf, BUFFER_SIZE).gcount(); - - // Parse the data and handle any XML error - if (!XML_ParseBuffer(&p, bytesRead, bytesRead == 0)) { - const int line = XML_GetCurrentLineNumber(&p); - const int column = XML_GetCurrentColumnNumber(&p); - const XML_Error code = XML_GetErrorCode(&p); - const std::string msg = std::string{XML_ErrorString(code)}; - logger.error("XML: " + msg, line, column); - break; - } - - // Abort once there are no more bytes in the stream - if (bytesRead == 0) { - break; - } - } - - return nullptr; -} -} - diff --git a/src/core/parser/XmlParser.hpp b/src/core/parser/XmlParser.hpp deleted file mode 100644 index f6fb060..0000000 --- a/src/core/parser/XmlParser.hpp +++ /dev/null @@ -1,63 +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 . -*/ - -/** - * @file XmlParser.hpp - * - * Contains the parser responsible for reading Ousía XML Documents (extension - * oxd) and Ousía XML Modules (extension oxm). - * - * @author Andreas Stöckel (astoecke@techfak.uni-bielefeld.de) - */ - -#ifndef _OUSIA_XML_PARSER_HPP_ -#define _OUSIA_XML_PARSER_HPP_ - -#include - -namespace ousia { - -/** - * The XmlParser class implements parsing the various types of Ousía XML - * documents using the expat stream XML parser. - */ -class XmlParser : public Parser { -public: - /** - * Returns the mimetype supported by the XmlParser which is - * "text/vnd.ousia.oxm" and "text/vnd.ousia.oxd". - * - * @return a list containing the mimetype supported by Ousía. - */ - std::set mimetypes() override; - - /** - * Parses the given input stream as XML file and returns the parsed - * top-level node. Throws - * - * @param is is the input stream that will be parsed. - */ - Rooted parse(std::istream &is, Handle context, - Logger &logger) override; - - using Parser::parse; -}; -} - -#endif /* _OUSIA_XML_PARSER_HPP_ */ - -- cgit v1.2.3