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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 RectorPrefix202304\Nette\Neon\Node;
use RectorPrefix202304\Nette;
use RectorPrefix202304\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}|.)#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 (\json_decode('"' . $sq . '"') !== null) {
throw new Nette\Neon\Exception("Invalid UTF-8 sequence {$sq}");
}
return \json_decode('"' . $sq . '"');
} else {
throw new Nette\Neon\Exception("Invalid escaping sequence {$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;
}
}