27 namespace seqan3::detail
39 class constexpr_pseudo_bitset :
public std::array<bool, N>
49 constexpr constexpr_pseudo_bitset
operator|(constexpr_pseudo_bitset rhs)
const noexcept
51 for (
size_t i = 0; i < N; ++i)
52 rhs[i] = rhs[i] || base_t::operator[](i);
57 constexpr constexpr_pseudo_bitset operator~() const noexcept
59 constexpr_pseudo_bitset ret{};
60 for (
size_t i = 0; i < N; ++i)
61 ret[i] = !base_t::operator[](i);
79 template <
char op,
typename condition_head_t,
typename ...condition_ts>
83 (condition_head_t::msg + ... +
93 template <
typename condition_t>
94 struct char_predicate_base;
106 template <
typename condition_t>
108 SEQAN3_CONCEPT char_predicate = requires
110 requires std::predicate<std::remove_reference_t<condition_t>,
char>;
111 requires std::is_base_of_v<char_predicate_base<std::remove_cvref_t<condition_t>>,
147 template <char_predicate... condition_ts>
148 requires (
sizeof...(condition_ts) >= 2)
149 struct char_predicate_combiner;
151 template <char_predicate condition_t>
152 struct char_predicate_negator;
161 template <typename derived_t>
162 struct char_predicate_base
165 using data_t = constexpr_pseudo_bitset<257>;
171 template <
char_predicate rhs_t>
173 constexpr
auto operator||(rhs_t
const &)
const
175 return char_predicate_combiner<derived_t, rhs_t>{};
179 constexpr
auto operator!()
const
181 return char_predicate_negator<derived_t>{};
188 template <std::
integral value_t>
190 constexpr
bool operator()(value_t
const val)
const noexcept
192 requires (
sizeof(value_t) == 1)
195 return derived_t::data[
static_cast<unsigned char>(val)];
199 template <std::
integral value_t>
200 constexpr
bool operator()(value_t
const val)
const noexcept
202 requires (
sizeof(value_t) != 1)
207 (char_trait::eq_int_type(val, char_trait::eof())) ? derived_t::
data[256] : false;
217 return derived_t::msg;
232 template <char_predicate... condition_ts>
234 requires (
sizeof...(condition_ts) >= 2)
236 struct char_predicate_combiner : public char_predicate_base<char_predicate_combiner<condition_ts...>>
239 inline static const std::string msg = detail::condition_message_v<
'|', condition_ts...>;
242 using base_t = char_predicate_base<char_predicate_combiner<condition_ts...>>;
245 using typename base_t::data_t;
247 static constexpr data_t
data = (condition_ts::data | ...);
256 template <
char_predicate condition_t>
257 struct char_predicate_negator :
public char_predicate_base<char_predicate_negator<condition_t>>
263 using base_t = char_predicate_base<char_predicate_negator<condition_t>>;
266 using typename base_t::data_t;
268 static constexpr data_t
data = ~condition_t::data;
283 template <u
int8_t
interval_first, u
int8_t
interval_last>
285 requires (interval_first <= interval_last)
287 struct is_in_interval_type :
public char_predicate_base<is_in_interval_type<interval_first, interval_last>>
297 using base_t = char_predicate_base<is_in_interval_type<interval_first, interval_last>>;
300 using typename base_t::data_t;
302 static constexpr data_t
data = [] () constexpr
306 for (
size_t i = interval_first; i <= static_cast<size_t>(interval_last); ++i)
322 template <detail::constexpr_alphabet alphabet_t>
323 struct is_in_alphabet_type :
public char_predicate_base<is_in_alphabet_type<alphabet_t>>
328 detail::type_name_as_string<alphabet_t> +
332 using base_t = char_predicate_base<is_in_alphabet_type<alphabet_t>>;
335 using typename base_t::data_t;
337 static constexpr data_t
data = [] () constexpr
341 for (
size_t i = 0; i < 256; ++i)
342 ret[i] = char_is_valid_for<alphabet_t>(
static_cast<uint8_t
>(i));
357 template <
int char_v>
358 struct is_char_type :
public char_predicate_base<is_char_type<char_v>>
360 static_assert(char_v == EOF ||
static_cast<uint64_t
>(char_v) < 256,
"TODO");
370 using base_t = char_predicate_base<is_char_type<char_v>>;
373 using typename base_t::data_t;
375 static constexpr data_t
data = [] () constexpr
382 ret[
static_cast<uint8_t
>(char_v)] =
true;