107 lines
2.1 KiB
C++
107 lines
2.1 KiB
C++
/*
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* This project is licensed under the MIT license. For more information see the
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* LICENSE file.
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*/
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#pragma once
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// -----------------------------------------------------------------------------
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#include <functional>
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#include <string>
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#include <regex>
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#include "maddy/blockparser.h"
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// -----------------------------------------------------------------------------
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namespace maddy {
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// -----------------------------------------------------------------------------
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/**
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* HorizontalLineParser
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*
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* From Markdown: `---`
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*
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* To HTML: `<hr/>`
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*
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* @class
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*/
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class HorizontalLineParser : public BlockParser
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{
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public:
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/**
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* ctor
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*
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* @method
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* @param {std::function<void(std::string&)>} parseLineCallback
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* @param {std::function<std::shared_ptr<BlockParser>(const std::string& line)>} getBlockParserForLineCallback
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*/
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HorizontalLineParser(
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std::function<void(std::string&)> parseLineCallback,
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std::function<std::shared_ptr<BlockParser>(const std::string& line)> getBlockParserForLineCallback
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)
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: BlockParser(parseLineCallback, getBlockParserForLineCallback)
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, lineRegex("^---$")
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{}
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/**
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* IsStartingLine
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*
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* If the line has exact three dashes `---`, then it is a horizontal line.
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*
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* @method
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* @param {const std::string&} line
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* @return {bool}
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*/
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static bool
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IsStartingLine(const std::string& line)
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{
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static std::regex re("^---$");
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return std::regex_match(line, re);
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}
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/**
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* IsFinished
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*
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* The horizontal line is always only one line long, so this method always
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* returns true.
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*
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* @method
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* @return {bool}
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*/
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bool
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IsFinished() const override
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{
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return true;
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}
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protected:
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bool
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isInlineBlockAllowed() const override
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{
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return false;
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}
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bool
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isLineParserAllowed() const override
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{
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return false;
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}
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void
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parseBlock(std::string& line) override
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{
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static std::string replacement = "<hr/>";
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line = std::regex_replace(line, lineRegex, replacement);
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}
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private:
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std::regex lineRegex;
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}; // class HorizontalLineParser
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// -----------------------------------------------------------------------------
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} // namespace maddy
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