forked from mirzaev/baza
77 lines
2.2 KiB
PHP
Executable File
77 lines
2.2 KiB
PHP
Executable File
<?php
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declare(strict_types=1);
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namespace mirzaev\baza\enumerations;
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// Build-in libraries
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use UnexpectedValueException as exception_unexpected_value;
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/**
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* Encoding
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*
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* The selected encoding significantly affects the file size and the speed of working with it
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*
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* ASCII English
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* CP1250 Central Europe
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* CP1251 Cyrillic
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* CP1252 Western Europe
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* CP1253 Greek
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* CP1254 Turkish
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* CP1255 Hebrew
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* CP1256 Arabic
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* CP1257 Baltic Rim
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* CP1258 Vietnam
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*
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* UTF-8 Length 1-4 bytes, better for Europe, backwards compatible with ASCII (minimum size)
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* UTF-16 Length 2-4 bytes, better for Asia (medium size with medium performance)
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* UTF-32 Fixed length of 4 bytes (maximum performance)
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*
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* In the database, the length for all encodings is fixed at the maximum value
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*
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* @see https://www.php.net/manual/ru/mbstring.supported-encodings.php Encodings in PHP
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* @see https://www.ascii-code.com/ About ASCII encodings
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* @see https://home.unicode.org/technical-quick-start-guide/ About unicode
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* @see https://www.unicode.org/main.html Abount unicode encodings
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* @see https://www.unicode.org/faq/utf_bom.html About UTF
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*
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* @package mirzaev\baza\enumerations
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*
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* @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
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* @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
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*/
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enum encoding: string
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{
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case ascii = 'ASCII';
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case cp1251 = 'CP1251'; // Windows 1251
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case cp1252 = 'CP1252'; // Windows-1252
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case cp1253 = 'CP1253'; // Windows-1253
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case cp1254 = 'CP1254'; // Windows-1254
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case cp1255 = 'CP1255'; // Windows-1255
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case cp1256 = 'CP1256'; // Windows-1256
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case cp1257 = 'CP1257'; // Windows-1257
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case cp1258 = 'CP1258'; // Windows-1258
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case utf8 = 'UTF-8';
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case utf16 = 'UTF-16';
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case utf32 = 'UTF-32';
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/**
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* Length
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*
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* @return int Number of bits for a symbol
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*/
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public function maximum(): int
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{
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// Exit (success)
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return match ($this) {
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encoding::ascii => 7,
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encoding::cp1251, encoding::cp1252, encoding::cp1253, encoding::cp1254, encoding::cp1255, encoding::cp1256, encoding::cp1257, encoding::cp1258 => 8,
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encoding::utf8 => 8,
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encoding::utf16 => 16,
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encoding::utf32 => 32,
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default => throw new exception_unexpected_value('Not found the encoding')
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};
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}
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}
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