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 <functional>
ferencd@0: #include <string>
ferencd@0: 
ferencd@0: #include "maddy/blockparser.h"
ferencd@0: 
ferencd@0: // -----------------------------------------------------------------------------
ferencd@0: 
ferencd@0: namespace maddy {
ferencd@0: 
ferencd@0: // -----------------------------------------------------------------------------
ferencd@0: 
ferencd@0: /**
ferencd@0:  * HtmlParser
ferencd@0:  *
ferencd@0:  * @class
ferencd@0:  */
ferencd@0: class HtmlParser : public BlockParser
ferencd@0: {
ferencd@0: public:
ferencd@0:   /**
ferencd@0:    * ctor
ferencd@0:    *
ferencd@0:    * @method
ferencd@0:    * @param {std::function<void(std::string&)>} parseLineCallback
ferencd@0:    * @param {std::function<std::shared_ptr<BlockParser>(const std::string& line)>} getBlockParserForLineCallback
ferencd@0:    */
ferencd@0:    HtmlParser(
ferencd@0:     std::function<void(std::string&)> parseLineCallback,
ferencd@0:     std::function<std::shared_ptr<BlockParser>(const std::string& line)> getBlockParserForLineCallback
ferencd@0:   )
ferencd@0:     : BlockParser(parseLineCallback, getBlockParserForLineCallback)
ferencd@0:     , isStarted(false)
ferencd@0:     , isFinished(false)
ferencd@0:     , isGreaterThanFound(false)
ferencd@0:   {}
ferencd@0: 
ferencd@0:   /**
ferencd@0:    * IsStartingLine
ferencd@0:    *
ferencd@0:    * If the line is starting with `<`, HTML is expected to follow.
ferencd@0:    * Nothing after that will be parsed, it only is copied.
ferencd@0:    *
ferencd@0:    * @method
ferencd@0:    * @param {const std::string&} line
ferencd@0:    * @return {bool}
ferencd@0:    */
ferencd@0:   static bool
ferencd@0:   IsStartingLine(const std::string& line)
ferencd@0:   {
ferencd@0:     return line[0] == '<';
ferencd@0:   }
ferencd@0: 
ferencd@0:   /**
ferencd@0:    * IsFinished
ferencd@0:    *
ferencd@0:    * `>` followed by an empty line will end the HTML block.
ferencd@0:    *
ferencd@0:    * @method
ferencd@0:    * @return {bool}
ferencd@0:    */
ferencd@0:   bool
ferencd@0:   IsFinished() const override
ferencd@0:   {
ferencd@0:     return this->isFinished;
ferencd@0:   }
ferencd@0: 
ferencd@0: protected:
ferencd@0:   bool
ferencd@0:   isInlineBlockAllowed() const override
ferencd@0:   {
ferencd@0:     return false;
ferencd@0:   }
ferencd@0: 
ferencd@0:   bool
ferencd@0:   isLineParserAllowed() const override
ferencd@0:   {
ferencd@0:     return false;
ferencd@0:   }
ferencd@0: 
ferencd@0:   void
ferencd@0:   parseBlock(std::string& line) override
ferencd@0:   {
ferencd@0:     if (!this->isStarted)
ferencd@0:     {
ferencd@0:       this->isStarted = true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (!line.empty() && line[line.size() - 1] == '>')
ferencd@0:     {
ferencd@0:       this->isGreaterThanFound = true;
ferencd@0:       return;
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (line.empty() && this->isGreaterThanFound)
ferencd@0:     {
ferencd@0:       this->isFinished = true;
ferencd@0:       return;
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (!line.empty() && this->isGreaterThanFound)
ferencd@0:     {
ferencd@0:       this->isGreaterThanFound = false;
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (!line.empty())
ferencd@0:     {
ferencd@0:       line += " ";
ferencd@0:     }
ferencd@0:   }
ferencd@0: 
ferencd@0: private:
ferencd@0:   bool isStarted;
ferencd@0:   bool isFinished;
ferencd@0:   bool isGreaterThanFound;
ferencd@0: }; // class HtmlParser
ferencd@0: 
ferencd@0: // -----------------------------------------------------------------------------
ferencd@0: 
ferencd@0: } // namespace maddy