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/*
* This project is licensed under the MIT license. For more information see the
* LICENSE file.
*/
#pragma once
// -----------------------------------------------------------------------------
#include <functional>
#include <regex>
#include <string>
#include "maddy/blockparser.h"
// -----------------------------------------------------------------------------
namespace maddy {
// -----------------------------------------------------------------------------
/**
* ChecklistParser
*
* @class
*/
class ChecklistParser : public BlockParser
{
public:
/**
* ctor
*
* @method
* @param {std::function<void(std::string&)>} parseLineCallback
* @param {std::function<std::shared_ptr<BlockParser>(const std::string& line)>} getBlockParserForLineCallback
*/
ChecklistParser(
std::function<void(std::string&)> parseLineCallback,
std::function<std::shared_ptr<BlockParser>(const std::string& line)> getBlockParserForLineCallback
)
: BlockParser(parseLineCallback, getBlockParserForLineCallback)
, isStarted(false)
, isFinished(false)
{}
/**
* IsStartingLine
*
* An unordered list starts with `* `.
*
* @method
* @param {const std::string&} line
* @return {bool}
*/
static bool
IsStartingLine(const std::string& line)
{
static std::regex re("^- \\[[x| ]\\] .*");
return std::regex_match(line, re);
}
/**
* IsFinished
*
* @method
* @return {bool}
*/
bool
IsFinished() const override
{
return this->isFinished;
}
protected:
bool
isInlineBlockAllowed() const override
{
return true;
}
bool
isLineParserAllowed() const override
{
return true;
}
void
parseBlock(std::string& line) override
{
bool isStartOfNewListItem = IsStartingLine(line);
uint32_t indentation = getIndentationWidth(line);
static std::regex lineRegex("^(- )");
line = std::regex_replace(line, lineRegex, "");
static std::regex emptyBoxRegex("^\\[ \\]");
static std::string emptyBoxReplacement = "<input type=\"checkbox\"/>";
line = std::regex_replace(line, emptyBoxRegex, emptyBoxReplacement);
static std::regex boxRegex("^\\[x\\]");
static std::string boxReplacement = "<input type=\"checkbox\" checked=\"checked\"/>";
line = std::regex_replace(line, boxRegex, boxReplacement);
if (!this->isStarted)
{
line = "<ul class=\"checklist\"><li><label>" + line;
this->isStarted = true;
return;
}
if (indentation >= 2)
{
line = line.substr(2);
return;
}
if (
line.empty() ||
line.find("</label></li><li><label>") != std::string::npos ||
line.find("</label></li></ul>") != std::string::npos
)
{
line = "</label></li></ul>" + line;
this->isFinished = true;
return;
}
if (isStartOfNewListItem)
{
line = "</label></li><li><label>" + line;
}
}
private:
bool isStarted;
bool isFinished;
}; // class ChecklistParser
// -----------------------------------------------------------------------------
} // namespace maddy
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