ferencd@0: /*
ferencd@0:  * This project is licensed under the MIT license. For more information see the
ferencd@0:  * LICENSE file.
ferencd@0:  */
ferencd@0: #pragma once
ferencd@0: 
ferencd@0: // -----------------------------------------------------------------------------
ferencd@0: 
ferencd@0: #include <memory>
ferencd@0: #include <functional>
ferencd@0: #include <string>
ferencd@0: 
ferencd@0: #include "maddy/parserconfig.h"
ferencd@0: 
ferencd@0: // BlockParser
ferencd@0: #include "maddy/checklistparser.h"
ferencd@0: #include "maddy/codeblockparser.h"
ferencd@0: #include "maddy/headlineparser.h"
ferencd@0: #include "maddy/horizontallineparser.h"
ferencd@0: #include "maddy/htmlparser.h"
ferencd@0: #include "maddy/orderedlistparser.h"
ferencd@0: #include "maddy/paragraphparser.h"
ferencd@0: #include "maddy/quoteparser.h"
ferencd@0: #include "maddy/tableparser.h"
ferencd@0: #include "maddy/unorderedlistparser.h"
ferencd@0: 
ferencd@0: // LineParser
ferencd@0: #include "maddy/breaklineparser.h"
ferencd@0: #include "maddy/emphasizedparser.h"
ferencd@0: #include "maddy/imageparser.h"
ferencd@0: #include "maddy/inlinecodeparser.h"
ferencd@0: #include "maddy/italicparser.h"
ferencd@0: #include "maddy/linkparser.h"
ferencd@0: #include "maddy/strikethroughparser.h"
ferencd@0: #include "maddy/strongparser.h"
ferencd@0: 
ferencd@0: // -----------------------------------------------------------------------------
ferencd@0: 
ferencd@0: namespace maddy {
ferencd@0: 
ferencd@0: // -----------------------------------------------------------------------------
ferencd@0: 
ferencd@0: /**
ferencd@0:  * Parser
ferencd@0:  *
ferencd@0:  * Transforms Markdown to HTML
ferencd@0:  *
ferencd@0:  * @class
ferencd@0:  */
ferencd@0: class Parser
ferencd@0: {
ferencd@0: public:
ferencd@0:   /**
ferencd@0:    * ctor
ferencd@0:    *
ferencd@0:    * Initializes all `LineParser`
ferencd@0:    *
ferencd@0:    * @method
ferencd@0:    */
ferencd@0:   Parser(std::shared_ptr<ParserConfig> config = nullptr)
ferencd@0:     : config(config)
ferencd@0:     , breakLineParser(std::make_shared<BreakLineParser>())
ferencd@0:     , emphasizedParser(std::make_shared<EmphasizedParser>())
ferencd@0:     , imageParser(std::make_shared<ImageParser>())
ferencd@0:     , inlineCodeParser(std::make_shared<InlineCodeParser>())
ferencd@0:     , italicParser(std::make_shared<ItalicParser>())
ferencd@0:     , linkParser(std::make_shared<LinkParser>())
ferencd@0:     , strikeThroughParser(std::make_shared<StrikeThroughParser>())
ferencd@0:     , strongParser(std::make_shared<StrongParser>())
ferencd@0:   {}
ferencd@0: 
ferencd@0:   /**
ferencd@0:    * Parse
ferencd@0:    *
ferencd@0:    * @method
ferencd@0:    * @param {const std::istream&} markdown
ferencd@0:    * @return {std::string} HTML
ferencd@0:    */
ferencd@0:   std::string
ferencd@0:   Parse(std::istream& markdown) const
ferencd@0:   {
ferencd@0:     std::string result = "";
ferencd@0:     std::shared_ptr<BlockParser> currentBlockParser = nullptr;
ferencd@0: 
ferencd@0:     for (std::string line; std::getline(markdown, line);)
ferencd@0:     {
ferencd@0:       if (!currentBlockParser)
ferencd@0:       {
ferencd@0:         currentBlockParser = getBlockParserForLine(line);
ferencd@0:       }
ferencd@0: 
ferencd@0:       if (currentBlockParser)
ferencd@0:       {
ferencd@0:         currentBlockParser->AddLine(line);
ferencd@0: 
ferencd@0:         if (currentBlockParser->IsFinished())
ferencd@0:         {
ferencd@0:           result += currentBlockParser->GetResult().str();
ferencd@0:           currentBlockParser = nullptr;
ferencd@0:         }
ferencd@0:       }
ferencd@0:     }
ferencd@0: 
ferencd@0:     // make sure, that all parsers are finished
ferencd@0:     if (currentBlockParser)
ferencd@0:     {
ferencd@0:       std::string emptyLine = "";
ferencd@0:       currentBlockParser->AddLine(emptyLine);
ferencd@0:       if (currentBlockParser->IsFinished())
ferencd@0:       {
ferencd@0:         result += currentBlockParser->GetResult().str();
ferencd@0:         currentBlockParser = nullptr;
ferencd@0:       }
ferencd@0:     }
ferencd@0: 
ferencd@0:     return result;
ferencd@0:   }
ferencd@0: 
ferencd@0: private:
ferencd@0:   std::shared_ptr<ParserConfig> config;
ferencd@0:   std::shared_ptr<BreakLineParser> breakLineParser;
ferencd@0:   std::shared_ptr<EmphasizedParser> emphasizedParser;
ferencd@0:   std::shared_ptr<ImageParser> imageParser;
ferencd@0:   std::shared_ptr<InlineCodeParser> inlineCodeParser;
ferencd@0:   std::shared_ptr<ItalicParser> italicParser;
ferencd@0:   std::shared_ptr<LinkParser> linkParser;
ferencd@0:   std::shared_ptr<StrikeThroughParser> strikeThroughParser;
ferencd@0:   std::shared_ptr<StrongParser> strongParser;
ferencd@0: 
ferencd@0:   // block parser have to run before
ferencd@0:   void
ferencd@0:   runLineParser(std::string& line) const
ferencd@0:   {
ferencd@0:     // Attention! ImageParser has to be before LinkParser
ferencd@0:     this->imageParser->Parse(line);
ferencd@0:     this->linkParser->Parse(line);
ferencd@0: 
ferencd@0:     // Attention! StrongParser has to be before EmphasizedParser
ferencd@0:     this->strongParser->Parse(line);
ferencd@0: 
ferencd@0:     if (!this->config || this->config->isEmphasizedParserEnabled)
ferencd@0:     {
ferencd@0:       this->emphasizedParser->Parse(line);
ferencd@0:     }
ferencd@0: 
ferencd@0:     this->strikeThroughParser->Parse(line);
ferencd@0: 
ferencd@0:     this->inlineCodeParser->Parse(line);
ferencd@0: 
ferencd@0:     this->italicParser->Parse(line);
ferencd@0: 
ferencd@0:     this->breakLineParser->Parse(line);
ferencd@0:   }
ferencd@0: 
ferencd@0:   std::shared_ptr<BlockParser>
ferencd@0:   getBlockParserForLine(const std::string& line) const
ferencd@0:   {
ferencd@0:     std::shared_ptr<BlockParser> parser;
ferencd@0: 
ferencd@0:     if (maddy::CodeBlockParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = std::make_shared<maddy::CodeBlockParser>(
ferencd@0:         nullptr,
ferencd@0:         nullptr
ferencd@0:       );
ferencd@0:     }
ferencd@0:     else if (maddy::HeadlineParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = std::make_shared<maddy::HeadlineParser>(
ferencd@0:         nullptr,
ferencd@0:         nullptr
ferencd@0:       );
ferencd@0:     }
ferencd@0:     else if (maddy::HorizontalLineParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = std::make_shared<maddy::HorizontalLineParser>(
ferencd@0:         nullptr,
ferencd@0:         nullptr
ferencd@0:       );
ferencd@0:     }
ferencd@0:     else if (maddy::QuoteParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = std::make_shared<maddy::QuoteParser>(
ferencd@0:         [this](std::string& line){ this->runLineParser(line); },
ferencd@0:         [this](const std::string& line){ return this->getBlockParserForLine(line); }
ferencd@0:       );
ferencd@0:     }
ferencd@0:     else if (maddy::TableParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = std::make_shared<maddy::TableParser>(
ferencd@0:         [this](std::string& line){ this->runLineParser(line); },
ferencd@0:         nullptr
ferencd@0:       );
ferencd@0:     }
ferencd@0:     else if (maddy::ChecklistParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = this->createChecklistParser();
ferencd@0:     }
ferencd@0:     else if (maddy::OrderedListParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = this->createOrderedListParser();
ferencd@0:     }
ferencd@0:     else if (maddy::UnorderedListParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = this->createUnorderedListParser();
ferencd@0:     }
ferencd@0:     else if (
ferencd@0:       this->config &&
ferencd@0:       !this->config->isHTMLWrappedInParagraph &&
ferencd@0:       maddy::HtmlParser::IsStartingLine(line)
ferencd@0:     )
ferencd@0:     {
ferencd@0:       parser = std::make_shared<maddy::HtmlParser>(nullptr, nullptr);
ferencd@0:     }
ferencd@0:     else if (maddy::ParagraphParser::IsStartingLine(line))
ferencd@0:     {
ferencd@0:       parser = std::make_shared<maddy::ParagraphParser>(
ferencd@0:         [this](std::string& line){ this->runLineParser(line); },
ferencd@0:         nullptr
ferencd@0:       );
ferencd@0:     }
ferencd@0: 
ferencd@0:     return parser;
ferencd@0:   }
ferencd@0: 
ferencd@0:   std::shared_ptr<BlockParser>
ferencd@0:   createChecklistParser() const
ferencd@0:   {
ferencd@0:     return std::make_shared<maddy::ChecklistParser>(
ferencd@0:       [this](std::string& line){ this->runLineParser(line); },
ferencd@0:       [this](const std::string& line)
ferencd@0:       {
ferencd@0:         std::shared_ptr<BlockParser> parser;
ferencd@0: 
ferencd@0:         if (maddy::ChecklistParser::IsStartingLine(line))
ferencd@0:         {
ferencd@0:           parser = this->createChecklistParser();
ferencd@0:         }
ferencd@0: 
ferencd@0:         return parser;
ferencd@0:       }
ferencd@0:     );
ferencd@0:   }
ferencd@0: 
ferencd@0:   std::shared_ptr<BlockParser>
ferencd@0:   createOrderedListParser() const
ferencd@0:   {
ferencd@0:     return std::make_shared<maddy::OrderedListParser>(
ferencd@0:       [this](std::string& line){ this->runLineParser(line); },
ferencd@0:       [this](const std::string& line)
ferencd@0:       {
ferencd@0:         std::shared_ptr<BlockParser> parser;
ferencd@0: 
ferencd@0:         if (maddy::OrderedListParser::IsStartingLine(line))
ferencd@0:         {
ferencd@0:           parser = this->createOrderedListParser();
ferencd@0:         }
ferencd@0:         else if (maddy::UnorderedListParser::IsStartingLine(line))
ferencd@0:         {
ferencd@0:           parser = this->createUnorderedListParser();
ferencd@0:         }
ferencd@0: 
ferencd@0:         return parser;
ferencd@0:       }
ferencd@0:     );
ferencd@0:   }
ferencd@0: 
ferencd@0:   std::shared_ptr<BlockParser>
ferencd@0:   createUnorderedListParser() const
ferencd@0:   {
ferencd@0:     return std::make_shared<maddy::UnorderedListParser>(
ferencd@0:       [this](std::string& line){ this->runLineParser(line); },
ferencd@0:       [this](const std::string& line)
ferencd@0:       {
ferencd@0:         std::shared_ptr<BlockParser> parser;
ferencd@0: 
ferencd@0:         if (maddy::OrderedListParser::IsStartingLine(line))
ferencd@0:         {
ferencd@0:           parser = this->createOrderedListParser();
ferencd@0:         }
ferencd@0:         else if (maddy::UnorderedListParser::IsStartingLine(line))
ferencd@0:         {
ferencd@0:           parser = this->createUnorderedListParser();
ferencd@0:         }
ferencd@0: 
ferencd@0:         return parser;
ferencd@0:       }
ferencd@0:     );
ferencd@0:   }
ferencd@0: }; // class Parser
ferencd@0: 
ferencd@0: // -----------------------------------------------------------------------------
ferencd@0: 
ferencd@0: } // namespace maddy