%PDF-
%PDF-
Mini Shell
Mini Shell
<?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 Nette\Neon\Node;
use Nette;
use Nette\Neon\Node;
/** @internal */
final class StringNode extends Node
{
private const EscapeSequences = [
't' => "\t", 'n' => "\n", 'r' => "\r", 'f' => "\x0C", 'b' => "\x08", '"' => '"', '\\' => '\\', '/' => '/', '_' => "\u{A0}",
];
/** @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;
}
}
Zerion Mini Shell 1.0