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move setup to seperate header, add static asserts

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ado
2021-02-02 21:43:36 +01:00
parent 6da0cb3544
commit 7640c038f3
2 changed files with 112 additions and 72 deletions
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73
include/ss/splitter.hpp
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@@ -1,4 +1,5 @@
#pragma once
#include "setup.hpp"
#include "type_traits.hpp"
#include <cstdlib>
#include <cstring>
@@ -6,78 +7,6 @@
#include <vector>
namespace ss {
template <char... Cs>
struct matcher {
private:
template <char X, char... Xs>
static bool match_impl(char c) {
if constexpr (sizeof...(Xs) != 0) {
return (c == X) || match_impl<Xs...>(c);
}
return (c == X);
}
public:
static bool match(char c) {
return match_impl<Cs...>(c);
}
constexpr static bool enabled = true;
};
template <>
class matcher<'\0'> {
public:
constexpr static bool enabled = false;
static bool match(char c) = delete;
};
template <char C>
struct quote : matcher<C> {};
template <char... Cs>
struct trim : matcher<Cs...> {};
template <char... Cs>
struct escape : matcher<Cs...> {};
template <typename T, template <char...> class Template>
struct is_instance_of_matcher {
constexpr static bool value = false;
};
template <char... Ts, template <char...> class Template>
struct is_instance_of_matcher<Template<Ts...>, Template> {
constexpr static bool value = true;
};
template <template <char...> class Matcher, typename... Ts>
struct get_matcher;
template <template <char...> class Matcher, typename T, typename... Ts>
struct get_matcher<Matcher, T, Ts...> {
using type =
typename ternary<is_instance_of_matcher<T, Matcher>::value, T,
typename get_matcher<Matcher, Ts...>::type>::type;
};
template <template <char...> class Matcher>
struct get_matcher<Matcher> {
using type = Matcher<'\0'>;
};
template <template <char...> class Matcher, typename... Ts>
using get_matcher_t = typename get_matcher<Matcher, Ts...>::type;
// TODO add static asserts
template <typename... Ts>
struct setup {
using quote = get_matcher_t<quote, Ts...>;
using trim = get_matcher_t<trim, Ts...>;
using escape = get_matcher_t<escape, Ts...>;
};
template <typename... Ts>
struct setup<setup<Ts...>> : setup<Ts...> {};
using string_range = std::pair<const char*, const char*>;
using split_input = std::vector<string_range>;