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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace RectorPrefix20211231\Symfony\Component\Yaml;
/**
* Escaper encapsulates escaping rules for single and double-quoted
* YAML strings.
*
* @author Matthew Lewinski <matthew@lewinski.org>
*
* @internal
*/
class Escaper
{
// Characters that would cause a dumped string to require double quoting.
public const REGEX_CHARACTER_TO_ESCAPE = "[\\x00-\\x1f]|| | | | ";
// Mapping arrays for escaping a double quoted string. The backslash is
// first to ensure proper escaping because str_replace operates iteratively
// on the input arrays. This ordering of the characters avoids the use of strtr,
// which performs more slowly.
private const ESCAPEES = ['\\', '\\\\', '\\"', '"', "\0", "\1", "\2", "\3", "\4", "\5", "\6", "\7", "\10", "\t", "\n", "\v", "\f", "\r", "\16", "\17", "\20", "\21", "\22", "\23", "\24", "\25", "\26", "\27", "\30", "\31", "\32", "\33", "\34", "\35", "\36", "\37", "", " ", " ", " ", " "];
private const ESCAPED = ['\\\\', '\\"', '\\\\', '\\"', '\\0', '\\x01', '\\x02', '\\x03', '\\x04', '\\x05', '\\x06', '\\a', '\\b', '\\t', '\\n', '\\v', '\\f', '\\r', '\\x0e', '\\x0f', '\\x10', '\\x11', '\\x12', '\\x13', '\\x14', '\\x15', '\\x16', '\\x17', '\\x18', '\\x19', '\\x1a', '\\e', '\\x1c', '\\x1d', '\\x1e', '\\x1f', '\\x7f', '\\N', '\\_', '\\L', '\\P'];
/**
* Determines if a PHP value would require double quoting in YAML.
*
* @param string $value A PHP value
*/
public static function requiresDoubleQuoting(string $value) : bool
{
return 0 < \preg_match('/' . self::REGEX_CHARACTER_TO_ESCAPE . '/u', $value);
}
/**
* Escapes and surrounds a PHP value with double quotes.
*
* @param string $value A PHP value
*/
public static function escapeWithDoubleQuotes(string $value) : string
{
return \sprintf('"%s"', \str_replace(self::ESCAPEES, self::ESCAPED, $value));
}
/**
* Determines if a PHP value would require single quoting in YAML.
*
* @param string $value A PHP value
*/
public static function requiresSingleQuoting(string $value) : bool
{
// Determines if a PHP value is entirely composed of a value that would
// require single quoting in YAML.
if (\in_array(\strtolower($value), ['null', '~', 'true', 'false', 'y', 'n', 'yes', 'no', 'on', 'off'])) {
return \true;
}
// Determines if the PHP value contains any single characters that would
// cause it to require single quoting in YAML.
return 0 < \preg_match('/[ \\s \' " \\: \\{ \\} \\[ \\] , & \\* \\# \\?] | \\A[ \\- ? | < > = ! % @ ` \\p{Zs}]/xu', $value);
}
/**
* Escapes and surrounds a PHP value with single quotes.
*
* @param string $value A PHP value
*/
public static function escapeWithSingleQuotes(string $value) : string
{
return \sprintf("'%s'", \str_replace('\'', '\'\'', $value));
}
}
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