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<?php /** * This file is part of the Nette Framework (https://nette.org) * Copyright (c) 2004 David Grudl (https://davidgrudl.com) */ declare (strict_types=1); namespace RectorPrefix202208\Nette\Neon\Node; use RectorPrefix202208\Nette; use RectorPrefix202208\Nette\Neon\Node; /** @internal */ final class StringNode extends Node { private const EscapeSequences = ['t' => "\t", 'n' => "\n", 'r' => "\r", 'f' => "\f", 'b' => "\x08", '"' => '"', '\\' => '\\', '/' => '/', '_' => " "]; /** @var string */ public $value; public function __construct(string $value) { $this->value = $value; } public function toValue() : string { return $this->value; } public static function parse(string $s) : string { if (\preg_match('#^...\\n++([\\t ]*+)#', $s, $m)) { // multiline $res = \substr($s, 3, -3); $res = \str_replace("\n" . $m[1], "\n", $res); $res = \preg_replace('#^\\n|\\n[\\t ]*+$#D', '', $res); } else { $res = \substr($s, 1, -1); if ($s[0] === "'") { $res = \str_replace("''", "'", $res); } } if ($s[0] === "'") { return $res; } return \preg_replace_callback('#\\\\(?:ud[89ab][0-9a-f]{2}\\\\ud[c-f][0-9a-f]{2}|u[0-9a-f]{4}|x[0-9a-f]{2}|.)#i', function (array $m) : string { $sq = $m[0]; if (isset(self::EscapeSequences[$sq[1]])) { return self::EscapeSequences[$sq[1]]; } elseif ($sq[1] === 'u' && \strlen($sq) >= 6) { if (($res = \json_decode('"' . $sq . '"')) !== null) { return $res; } throw new Nette\Neon\Exception("Invalid UTF-8 sequence {$sq}"); } elseif ($sq[1] === 'x' && \strlen($sq) === 4) { \trigger_error("Neon: '{$sq}' is deprecated, use '\\uXXXX' instead.", \E_USER_DEPRECATED); return \chr(\hexdec(\substr($sq, 2))); } else { throw new Nette\Neon\Exception("Invalid escaping sequence {$sq}"); } }, $res); } public function toString() : string { if (\strpos($this->value, "\n") === \false) { return "'" . \str_replace("'", "''", $this->value) . "'"; } elseif (\preg_match('~\\n[\\t ]+\'{3}~', $this->value)) { $s = \json_encode($this->value, \JSON_UNESCAPED_UNICODE | \JSON_UNESCAPED_SLASHES); $s = \preg_replace_callback('#[^\\\\]|\\\\(.)#s', function ($m) { return ['n' => "\n", 't' => "\t", '"' => '"'][$m[1] ?? ''] ?? $m[0]; }, \substr($s, 1, -1)); $s = \str_replace('"""', '""\\"', $s); $delim = '"""'; } else { $s = $this->value; $delim = "'''"; } $s = \preg_replace('#^(?=.)#m', "\t", $s); return $delim . "\n" . $s . "\n" . $delim; } }
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