mirror of
https://git.wownero.com/wownero/onion-wownero-blockchain-explorer.git
synced 2024-08-15 00:33:12 +00:00
129 lines
3.3 KiB
C++
129 lines
3.3 KiB
C++
#pragma once
|
|
|
|
#include <vector>
|
|
#include <map>
|
|
#include <string>
|
|
#include <memory>
|
|
#include <functional>
|
|
|
|
#include <boost/variant.hpp>
|
|
|
|
namespace mstch {
|
|
|
|
struct config {
|
|
static std::function<std::string(const std::string&)> escape;
|
|
};
|
|
|
|
namespace internal {
|
|
|
|
template<class N>
|
|
class object_t {
|
|
public:
|
|
const N& at(const std::string& name) const {
|
|
cache[name] = (methods.at(name))();
|
|
return cache[name];
|
|
}
|
|
|
|
bool has(const std::string name) const {
|
|
return methods.count(name) != 0;
|
|
}
|
|
|
|
protected:
|
|
template<class S>
|
|
void register_methods(S* s, std::map<std::string,N(S::*)()> methods) {
|
|
for(auto& item: methods)
|
|
this->methods.insert({item.first, std::bind(item.second, s)});
|
|
}
|
|
|
|
private:
|
|
std::map<std::string, std::function<N()>> methods;
|
|
mutable std::map<std::string, N> cache;
|
|
};
|
|
|
|
template<class T, class N>
|
|
class is_fun {
|
|
private:
|
|
using not_fun = char;
|
|
using fun_without_args = char[2];
|
|
using fun_with_args = char[3];
|
|
template <typename U, U> struct really_has;
|
|
template <typename C> static fun_without_args& test(
|
|
really_has<N(C::*)() const, &C::operator()>*);
|
|
template <typename C> static fun_with_args& test(
|
|
really_has<N(C::*)(const std::string&) const,
|
|
&C::operator()>*);
|
|
template <typename> static not_fun& test(...);
|
|
|
|
public:
|
|
static bool const no_args = sizeof(test<T>(0)) == sizeof(fun_without_args);
|
|
static bool const has_args = sizeof(test<T>(0)) == sizeof(fun_with_args);
|
|
};
|
|
|
|
template<class N>
|
|
using node_renderer = std::function<std::string(const N& n)>;
|
|
|
|
template<class N>
|
|
class lambda_t {
|
|
public:
|
|
template<class F>
|
|
lambda_t(F f, typename std::enable_if<is_fun<F, N>::no_args>::type* = 0):
|
|
fun([f](node_renderer<N> renderer, const std::string&) {
|
|
return renderer(f());
|
|
})
|
|
{
|
|
}
|
|
|
|
template<class F>
|
|
lambda_t(F f, typename std::enable_if<is_fun<F, N>::has_args>::type* = 0):
|
|
fun([f](node_renderer<N> renderer, const std::string& text) {
|
|
return renderer(f(text));
|
|
})
|
|
{
|
|
}
|
|
|
|
std::string operator()(node_renderer<N> renderer,
|
|
const std::string& text = "") const
|
|
{
|
|
return fun(renderer, text);
|
|
}
|
|
|
|
private:
|
|
std::function<std::string(node_renderer<N> renderer, const std::string&)> fun;
|
|
};
|
|
|
|
template <class Key, class Value>
|
|
struct map : public std::map<Key, Value>
|
|
{
|
|
map() {}
|
|
map(const map<Key, Value>& rhs) : std::map<Key, Value>(rhs) {}
|
|
map(const std::initializer_list<typename std::map<Key, Value>::value_type>& args) : std::map<Key, Value>(args) {}
|
|
map& operator=(const map& rhs)
|
|
{
|
|
std::map<Key, Value>::clear();
|
|
for (auto& i : rhs)
|
|
std::map<Key, Value>::insert(i);
|
|
return *this;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
using node = boost::make_recursive_variant<
|
|
std::nullptr_t, std::string, int, double, bool, uint64_t, int64_t, uint32_t,
|
|
internal::lambda_t<boost::recursive_variant_>,
|
|
std::shared_ptr<internal::object_t<boost::recursive_variant_>>,
|
|
internal::map<const std::string, boost::recursive_variant_>,
|
|
std::vector<boost::recursive_variant_>>::type;
|
|
using object = internal::object_t<node>;
|
|
using lambda = internal::lambda_t<node>;
|
|
using map = internal::map<const std::string, node>;
|
|
using array = std::vector<node>;
|
|
|
|
std::string render(
|
|
const std::string& tmplt,
|
|
const node& root,
|
|
const std::map<std::string,std::string>& partials =
|
|
std::map<std::string,std::string>());
|
|
|
|
}
|