xieite::ch {}

`xieite::ch {}`

Defined in fragment xieite:ch
(header-only: <xieite/str/ch.hpp>)

A namespace providing collections of characters.

constexpr std::size_t alphabet_size = 26;

Provides the size of the English alphabet.

#1

constexpr std::string_view upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

The English alphabet in uppercase. Its size is guaranteed to be xieite::ch::alphabet_size.

#2

constexpr std::string_view lower = "abcdefghijklmnopqrstuvwxyz";

The English alphabet in lowercase. Its size is guaranteed to be xieite::ch::alphabet_size.

#3

constexpr std::string_view digits = "0123456789";

Digits 0 through 9 in ascending order.

#4

constexpr std::string_view whitesp = " \t\n\v\f\r";

Whitespace characters.

#5

constexpr std::string_view alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

All alphanumeric characters. Consists of digits, followed by the uppercase English alphabet, followed by the lowercase English alphabet.

#6

constexpr std::string_view vowels = "AEIOUaeiou";

Uppercase and lowercase vowels in the English alphabet. Does not include semivowels.

#7

constexpr std::string_view consonants = "BCDFGHJKLMNPQRSTVWXYZbcdfghjklmnpqrstvwxyz";

Uppercase and lowercase consonants in the English alphabet. Includes semivowels (W, Y, w, y).

import std;
import xieite;

int main() {
	xieite::unroll<16uz>([]<std::size_t... i> {
		xieite::dump(xieite::ch::alphanum[i]...);
	});
}

Output:

0 1 2 3 4 5 6 7 8 9 A B C D E F