File Toolkit/Utility/Exception/PcreErrorException.php

1:	<?php declare(strict_types=1);
2:
3:	namespace Salient\Utility\Exception;
4:
5:	/**
6:	* @api
7:	*/
8:	class PcreErrorException extends AbstractUtilityException
9:	{
10:	private const ERROR_MESSAGE_MAP = [
11:	\PREG_NO_ERROR => 'No error',
12:	\PREG_INTERNAL_ERROR => 'Internal error',
13:	\PREG_BAD_UTF8_ERROR => 'Malformed UTF-8 characters, possibly incorrectly encoded',
14:	\PREG_BAD_UTF8_OFFSET_ERROR => 'The offset did not correspond to the beginning of a valid UTF-8 code point',
15:	\PREG_BACKTRACK_LIMIT_ERROR => 'Backtrack limit exhausted',
16:	\PREG_RECURSION_LIMIT_ERROR => 'Recursion limit exhausted',
17:	\PREG_JIT_STACKLIMIT_ERROR => 'JIT stack limit exhausted',
18:	];
19:
20:	protected int $PcreError;
21:	protected string $PcreErrorMessage;
22:	protected string $Function;
23:	/** @var array<string,callable(array<string\|null>): string>\|string[]\|string */
24:	protected $Pattern;
25:	/** @var string[]\|string */
26:	protected $Subject;
27:	/** @var array<int,string> */
28:	private static array $ErrorNameMap;
29:
30:	/**
31:	* @param array<string,callable(array<string\|null>): string>\|string[]\|string $pattern
32:	* @param string[]\|string $subject
33:	*/
34:	public function __construct(?int $error, string $function, $pattern, $subject)
35:	{
36:	$error ??= preg_last_error();
37:	$message = \PHP_VERSION_ID < 80000
38:	? self::ERROR_MESSAGE_MAP[$error] ?? 'Unknown error'
39:	: preg_last_error_msg();
40:
41:	$this->PcreError = $error;
42:	$this->PcreErrorMessage = $message;
43:	$this->Function = $function;
44:	$this->Pattern = $pattern;
45:	$this->Subject = $subject;
46:
47:	parent::__construct(sprintf(
48:	'Call to %s() failed with %s (%s)',
49:	$function,
50:	(self::$ErrorNameMap ??= $this->getErrorNameMap())[$error],
51:	$message,
52:	));
53:	}
54:
55:	/**
56:	* Get the exception's PCRE error code
57:	*/
58:	public function getPcreError(): int
59:	{
60:	return $this->PcreError;
61:	}
62:
63:	/**
64:	* Get the name of the exception's PCRE error
65:	*/
66:	public function getPcreErrorName(): string
67:	{
68:	return self::$ErrorNameMap[$this->PcreError];
69:	}
70:
71:	/**
72:	* Get the exception's PCRE error message
73:	*/
74:	public function getPcreErrorMessage(): string
75:	{
76:	return $this->PcreErrorMessage;
77:	}
78:
79:	/**
80:	* Get the name of the PCRE function that failed
81:	*/
82:	public function getFunction(): string
83:	{
84:	return $this->Function;
85:	}
86:
87:	/**
88:	* Get the pattern passed to the PCRE function
89:	*
90:	* @return array<string,callable(array<string\|null>): string>\|string[]\|string
91:	*/
92:	public function getPattern()
93:	{
94:	return $this->Pattern;
95:	}
96:
97:	/**
98:	* Get the subject passed to the PCRE function
99:	*
100:	* @return string[]\|string
101:	*/
102:	public function getSubject()
103:	{
104:	return $this->Subject;
105:	}
106:
107:	/**
108:	* @return array<int,string>
109:	*/
110:	private function getErrorNameMap(): array
111:	{
112:	foreach (get_defined_constants(true)['pcre'] as $name => $value) {
113:	if (substr($name, -6) !== '_ERROR') {
114:	continue;
115:	}
116:	$errors[$value] = $name;
117:	}
118:
119:	return $errors ?? [];
120:	}
121:	}
122:

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