139 lines
2.8 KiB
C++
139 lines
2.8 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 "maddy/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&)>} parseLineCallback
|
|
* @param {std::function<std::shared_ptr<BlockParser>(const std::string& line)>} getBlockParserForLineCallback
|
|
*/
|
|
HeadlineParser(
|
|
std::function<void(std::string&)> parseLineCallback,
|
|
std::function<std::shared_ptr<BlockParser>(const std::string& line)> getBlockParserForLineCallback
|
|
)
|
|
: BlockParser(parseLineCallback, getBlockParserForLineCallback)
|
|
{}
|
|
|
|
/**
|
|
* 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
|