57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
|
#pragma once
|
||
|
|
|
||
|
|
#include <sstream>
|
||
|
|
#include <boost/variant/static_visitor.hpp>
|
||
|
|
|
||
|
|
#include "../render_context.hpp"
|
||
|
|
#include "mstch/mstch.hpp"
|
||
|
|
#include "../utils.hpp"
|
||
|
|
|
||
|
|
namespace mstch {
|
||
|
|
|
||
|
|
class render_node: public boost::static_visitor<std::string> {
|
||
|
|
public:
|
||
|
|
enum class flag { none, escape_html };
|
||
|
|
render_node(render_context& ctx, flag p_flag = flag::none):
|
||
|
|
m_ctx(ctx), m_flag(p_flag)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
template<class T>
|
||
|
|
std::string operator()(const T&) const {
|
||
|
|
return "";
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string operator()(const int& value) const {
|
||
|
|
return std::to_string(value);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string operator()(const double& value) const {
|
||
|
|
std::stringstream ss;
|
||
|
|
ss << value;
|
||
|
|
return ss.str();
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string operator()(const bool& value) const {
|
||
|
|
return value ? "true" : "false";
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string operator()(const lambda& value) const {
|
||
|
|
template_type interpreted{value([this](const mstch::node& n) {
|
||
|
|
return visit(render_node(m_ctx), n);
|
||
|
|
})};
|
||
|
|
auto rendered = render_context::push(m_ctx).render(interpreted);
|
||
|
|
return (m_flag == flag::escape_html) ? html_escape(rendered) : rendered;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string operator()(const std::string& value) const {
|
||
|
|
return (m_flag == flag::escape_html) ? html_escape(value) : value;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
render_context& m_ctx;
|
||
|
|
flag m_flag;
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|