ph::string_utils::table Namespace Reference

Variables
constexpr std::string_view	common_whitespaces = " \n\r\t"
	Commonly used whitespace characters.
constexpr std::string_view	standard_whitespaces = " \n\r\t\v\f"
	Standard whitespace characters.
constexpr std::array< unsigned char, 256 >	ASCII_TO_UPPER
constexpr std::array< unsigned char, 256 >	ASCII_TO_LOWER
constexpr std::array< unsigned char, 62 >	BASE62_DIGITS

Variable Documentation

ASCII_TO_LOWER

std::array<unsigned char, 256> ph::string_utils::table::ASCII_TO_LOWER

inlineconstexpr

Table for mapping standard ASCII character codes to lower case, i.e., A~Z are mapped to a~z (a~z are also mapped to a~z itself, so a case check can be eliminated). Any other codes will be left unchanged.

ASCII_TO_UPPER

std::array<unsigned char, 256> ph::string_utils::table::ASCII_TO_UPPER

inlineconstexpr

Table for mapping standard ASCII character codes to upper case, i.e., a~z are mapped to A~Z (A~Z are also mapped to A~Z itself, so a case check can be eliminated). Any other codes will be left unchanged.

BASE62_DIGITS

std::array<unsigned char, 62> ph::string_utils::table::BASE62_DIGITS

inlineconstexpr

Initial value:

=
{{
    '0', '1', '2', '3', '4', '5', '6', '7',
    '8', '9', 'a', 'b', 'c', 'd', 'e', 'f',
    'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
    'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
    'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D',
    'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
    'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
    'U', 'V', 'W', 'X', 'Y', 'Z'
}}

common_whitespaces

std::string_view ph::string_utils::table::common_whitespaces = " \n\r\t"

inlineconstexpr

Commonly used whitespace characters.

Ordered from high frequency to low frequency (approximated).

standard_whitespaces

std::string_view ph::string_utils::table::standard_whitespaces = " \n\r\t\v\f"

inlineconstexpr

Standard whitespace characters.

Should idealy contain characters ch that satisfy std::isspace(ch) == true.