134 lines
3.0 KiB
C++
134 lines
3.0 KiB
C++
/*
|
|
* This project is licensed under the MIT license. For more information see the
|
|
* LICENSE file.
|
|
*/
|
|
#pragma once
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
#include <functional>
|
|
#include <string>
|
|
#include <regex>
|
|
|
|
#include "blockparser.h"
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
namespace maddy {
|
|
// -----------------------------------------------------------------------------
|
|
|
|
/**
|
|
* HeadlineParser
|
|
*
|
|
* From Markdown:
|
|
*
|
|
* ```
|
|
* # Headline 1
|
|
* ## Headline 2
|
|
* ### Headline 3
|
|
* #### Headline 4
|
|
* ##### Headline 5
|
|
* ###### Headline 6
|
|
* ```
|
|
*
|
|
* To HTML:
|
|
*
|
|
* ```
|
|
* <h1>Headline 1</h1>
|
|
* <h2>Headline 2</h2>
|
|
* <h3>Headline 3</h3>
|
|
* <h4>Headline 4</h4>
|
|
* <h5>Headline 5</h5>
|
|
* <h6>Headline 6</h6>
|
|
* ```
|
|
*
|
|
* @class
|
|
*/
|
|
class HeadlineParser : public BlockParser
|
|
{
|
|
public:
|
|
/**
|
|
* ctor
|
|
*
|
|
* @method
|
|
* @param {std::function<void(std::string&)>} aParseLineCallback
|
|
* @param {std::function<std::shared_ptr<BlockParser>(const std::string& line)>} aGetBlockParserForLineCallback
|
|
*/
|
|
HeadlineParser( std::function<void(std::string&)> aParseLineCallback,
|
|
std::function<std::shared_ptr<BlockParser>(const std::string& line)> aGetBlockParserForLineCallback
|
|
)
|
|
: BlockParser( aParseLineCallback, aGetBlockParserForLineCallback )
|
|
{}
|
|
|
|
/**
|
|
* IsStartingLine
|
|
*
|
|
* If the line starts with 1 - 6 `#`, then it is a headline.
|
|
*
|
|
* @method
|
|
* @param {const std::string&} line
|
|
* @return {bool}
|
|
*/
|
|
static bool IsStartingLine( const std::string& line )
|
|
{
|
|
static std::regex re( "^(?:#){1,6} (.*)" );
|
|
|
|
return std::regex_match( line, re );
|
|
}
|
|
|
|
/**
|
|
* IsFinished
|
|
*
|
|
* The headline is always only one line long, so this method always returns
|
|
* true.
|
|
*
|
|
* @method
|
|
* @return {bool}
|
|
*/
|
|
bool IsFinished() const override
|
|
{
|
|
return true;
|
|
}
|
|
|
|
protected:
|
|
bool isInlineBlockAllowed() const override
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool isLineParserAllowed() const override
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void parseBlock( std::string& line ) override
|
|
{
|
|
static std::vector<std::regex> hlRegex =
|
|
{
|
|
std::regex( "^# (.*)" ),
|
|
std::regex( "^(?:#){2} (.*)" ),
|
|
std::regex( "^(?:#){3} (.*)" ),
|
|
std::regex( "^(?:#){4} (.*)" ),
|
|
std::regex( "^(?:#){5} (.*)" ),
|
|
std::regex( "^(?:#){6} (.*)" )
|
|
};
|
|
static std::vector<std::string> hlReplacement =
|
|
{
|
|
"<h1>$1</h1>",
|
|
"<h2>$1</h2>",
|
|
"<h3>$1</h3>",
|
|
"<h4>$1</h4>",
|
|
"<h5>$1</h5>",
|
|
"<h6>$1</h6>"
|
|
};
|
|
|
|
for( uint8_t i = 0; i < 6; ++i )
|
|
{
|
|
line = std::regex_replace( line, hlRegex[i], hlReplacement[i] );
|
|
}
|
|
}
|
|
}; // class HeadlineParser
|
|
|
|
// -----------------------------------------------------------------------------
|
|
} // namespace maddy
|