20431395313

Committed 22 Dec 2025 12:06PM UTC coverage: 93.164% (+71.8%) from 21.324%

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Html::addText() accepts int|null for back compatibility [Closes #332][Closes #333]

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/src/Utils/Validators.php

<?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\Utils;

use Nette;
use function array_key_exists, class_exists, explode, gettype, interface_exists, is_callable, is_float, is_int, is_iterable, is_numeric, is_object, is_string, preg_match, str_ends_with, str_replace, str_starts_with, strlen, strtolower, substr, trait_exists, var_export;


/**
 * Validation utilities.
 */
class Validators
{
        use Nette\StaticClass;

        private const BuiltinTypes = [
                'string' => 1, 'int' => 1, 'float' => 1, 'bool' => 1, 'array' => 1, 'object' => 1,
                'callable' => 1, 'iterable' => 1, 'void' => 1, 'null' => 1, 'mixed' => 1, 'false' => 1,
                'never' => 1, 'true' => 1,
        ];

        /** @var array<string,?callable> */
        protected static $validators = [
                // PHP types
                'array' => 'is_array',
                'bool' => 'is_bool',
                'boolean' => 'is_bool',
                'float' => 'is_float',
                'int' => 'is_int',
                'integer' => 'is_int',
                'null' => 'is_null',
                'object' => 'is_object',
                'resource' => 'is_resource',
                'scalar' => 'is_scalar',
                'string' => 'is_string',

                // pseudo-types
                'callable' => [self::class, 'isCallable'],
                'iterable' => 'is_iterable',
                'list' => [Arrays::class, 'isList'],
                'mixed' => [self::class, 'isMixed'],
                'none' => [self::class, 'isNone'],
                'number' => [self::class, 'isNumber'],
                'numeric' => [self::class, 'isNumeric'],
                'numericint' => [self::class, 'isNumericInt'],

                // string patterns
                'alnum' => 'ctype_alnum',
                'alpha' => 'ctype_alpha',
                'digit' => 'ctype_digit',
                'lower' => 'ctype_lower',
                'pattern' => null,
                'space' => 'ctype_space',
                'unicode' => [self::class, 'isUnicode'],
                'upper' => 'ctype_upper',
                'xdigit' => 'ctype_xdigit',

                // syntax validation
                'email' => [self::class, 'isEmail'],
                'identifier' => [self::class, 'isPhpIdentifier'],
                'uri' => [self::class, 'isUri'],
                'url' => [self::class, 'isUrl'],

                // environment validation
                'class' => 'class_exists',
                'interface' => 'interface_exists',
                'directory' => 'is_dir',
                'file' => 'is_file',
                'type' => [self::class, 'isType'],
        ];

        /** @var array<string,callable> */
        protected static $counters = [
                'string' => 'strlen',
                'unicode' => [Strings::class, 'length'],
                'array' => 'count',
                'list' => 'count',
                'alnum' => 'strlen',
                'alpha' => 'strlen',
                'digit' => 'strlen',
                'lower' => 'strlen',
                'space' => 'strlen',
                'upper' => 'strlen',
                'xdigit' => 'strlen',
        ];


        /**
         * Verifies that the value is of expected types separated by pipe.
         * @throws AssertionException
         */
        public static function assert(mixed $value, string $expected, string $label = 'variable'): void
        {
                if (!static::is($value, $expected)) {
                        $expected = str_replace(['|', ':'], [' or ', ' in range '], $expected);
                        $translate = ['boolean' => 'bool', 'integer' => 'int', 'double' => 'float', 'NULL' => 'null'];
                        $type = $translate[gettype($value)] ?? gettype($value);
                        if (is_int($value) || is_float($value) || (is_string($value) && strlen($value) < 40)) {
                                $type .= ' ' . var_export($value, return: true);
                        } elseif (is_object($value)) {
                                $type .= ' ' . $value::class;
                        }

                        throw new AssertionException("The $label expects to be $expected, $type given.");
                }
        }


        /**
         * Verifies that element $key in array is of expected types separated by pipe.
         * @param  mixed[]  $array
         * @throws AssertionException
         */
        public static function assertField(
                array $array,
                $key,
                ?string $expected = null,
                string $label = "item '%' in array",
        ): void
        {
                if (!array_key_exists($key, $array)) {
                        throw new AssertionException('Missing ' . str_replace('%', $key, $label) . '.');

                } elseif ($expected) {
                        static::assert($array[$key], $expected, str_replace('%', $key, $label));
                }
        }


        /**
         * Verifies that the value is of expected types separated by pipe.
         */
        public static function is(mixed $value, string $expected): bool
        {
                foreach (explode('|', $expected) as $item) {
                        if (str_ends_with($item, '[]')) {
                                if (is_iterable($value) && self::everyIs($value, substr($item, 0, -2))) {
                                        return true;
                                }

                                continue;
                        } elseif (str_starts_with($item, '?')) {
                                $item = substr($item, 1);
                                if ($value === null) {
                                        return true;
                                }
                        }

                        [$type] = $item = explode(':', $item, 2);
                        if (isset(static::$validators[$type])) {
                                try {
                                        if (!static::$validators[$type]($value)) {
                                                continue;
                                        }
                                } catch (\TypeError $e) {
                                        continue;
                                }
                        } elseif ($type === 'pattern') {
                                if (Strings::match($value, '|^' . ($item[1] ?? '') . '$|D')) {
                                        return true;
                                }

                                continue;
                        } elseif (!$value instanceof $type) {
                                continue;
                        }

                        if (isset($item[1])) {
                                $length = $value;
                                if (isset(static::$counters[$type])) {
                                        $length = static::$counters[$type]($value);
                                }

                                $range = explode('..', $item[1]);
                                if (!isset($range[1])) {
                                        $range[1] = $range[0];
                                }

                                if (($range[0] !== '' && $length < $range[0]) || ($range[1] !== '' && $length > $range[1])) {
                                        continue;
                                }
                        }

                        return true;
                }

                return false;
        }


        /**
         * Finds whether all values are of expected types separated by pipe.
         * @param  mixed[]  $values
         */
        public static function everyIs(iterable $values, string $expected): bool
        {
                foreach ($values as $value) {
                        if (!static::is($value, $expected)) {
                                return false;
                        }
                }

                return true;
        }


        /**
         * Checks if the value is an integer or a float.
         * @return ($value is int|float ? true : false)
         */
        public static function isNumber(mixed $value): bool
        {
                return is_int($value) || is_float($value);
        }


        /**
         * Checks if the value is an integer or a integer written in a string.
         * @return ($value is non-empty-string ? bool : ($value is int ? true : false))
         */
        public static function isNumericInt(mixed $value): bool
        {
                return is_int($value) || (is_string($value) && preg_match('#^[+-]?[0-9]+$#D', $value));
        }


        /**
         * Checks if the value is a number or a number written in a string.
         * @return ($value is non-empty-string ? bool : ($value is int|float ? true : false))
         */
        public static function isNumeric(mixed $value): bool
        {
                return is_float($value) || is_int($value) || (is_string($value) && preg_match('#^[+-]?([0-9]++\.?[0-9]*|\.[0-9]+)$#D', $value));
        }


        /**
         * Checks if the value is a syntactically correct callback.
         */
        public static function isCallable(mixed $value): bool
        {
                return $value && is_callable($value, syntax_only: true);
        }


        /**
         * Checks if the value is a valid UTF-8 string.
         */
        public static function isUnicode(mixed $value): bool
        {
                return is_string($value) && preg_match('##u', $value);
        }


        /**
         * Checks if the value is 0, '', false or null.
         * @return ($value is 0|''|false|null ? true : false)
         */
        public static function isNone(mixed $value): bool
        {
                return $value == null; // intentionally ==
        }


        /** @internal */
        public static function isMixed(): bool
        {
                return true;
        }


        /**
         * Checks if a variable is a zero-based integer indexed array.
         * @deprecated  use Nette\Utils\Arrays::isList
         * @return ($value is list ? true : false)
         */
        public static function isList(mixed $value): bool
        {
                return Arrays::isList($value);
        }


        /**
         * Checks if the value is in the given range [min, max], where the upper or lower limit can be omitted (null).
         * Numbers, strings and DateTime objects can be compared.
         */
        public static function isInRange(mixed $value, array $range): bool
        {
                if ($value === null || !(isset($range[0]) || isset($range[1]))) {
                        return false;
                }

                $limit = $range[0] ?? $range[1];
                if (is_string($limit)) {
                        $value = (string) $value;
                } elseif ($limit instanceof \DateTimeInterface) {
                        if (!$value instanceof \DateTimeInterface) {
                                return false;
                        }
                } elseif (is_numeric($value)) {
                        $value *= 1;
                } else {
                        return false;
                }

                return (!isset($range[0]) || ($value >= $range[0])) && (!isset($range[1]) || ($value <= $range[1]));
        }


        /**
         * Checks if the value is a valid email address. It does not verify that the domain actually exists, only the syntax is verified.
         */
        public static function isEmail(string $value): bool
        {
                $atom = "[-a-z0-9!#$%&'*+/=?^_`{|}~]"; // RFC 5322 unquoted characters in local-part
                $alpha = "a-z\x80-\xFF"; // superset of IDN
                return (bool) preg_match(<<<XX
                        (^(?n)
                                ("([ !#-[\\]-~]*|\\\\[ -~])+"|$atom+(\\.$atom+)*)  # quoted or unquoted
                                @
                                ([0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)+  # domain - RFC 1034
                                [$alpha]([-0-9$alpha]{0,17}[$alpha])?              # top domain
                        $)Dix
                        XX, $value);
        }


        /**
         * Checks if the value is a valid URL address.
         */
        public static function isUrl(string $value): bool
        {
                $alpha = "a-z\x80-\xFF";
                return (bool) preg_match(<<<XX
                        (^(?n)
                                https?://(
                                        (([-_0-9$alpha]+\\.)*                       # subdomain
                                                [0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)?  # domain
                                                [$alpha]([-0-9$alpha]{0,17}[$alpha])?   # top domain
                                        |\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}  # IPv4
                                        |\\[[0-9a-f:]{3,39}\\]                      # IPv6
                                )(:\\d{1,5})?                                   # port
                                (/\\S*)?                                        # path
                                (\\?\\S*)?                                      # query
                                (\\#\\S*)?                                      # fragment
                        $)Dix
                        XX, $value);
        }


        /**
         * Checks if the value is a valid URI address, that is, actually a string beginning with a syntactically valid schema.
         */
        public static function isUri(string $value): bool
        {
                return (bool) preg_match('#^[a-z\d+\.-]+:\S+$#Di', $value);
        }


        /**
         * Checks whether the input is a class, interface or trait.
         * @deprecated
         */
        public static function isType(string $type): bool
        {
                return class_exists($type) || interface_exists($type) || trait_exists($type);
        }


        /**
         * Checks whether the input is a valid PHP identifier.
         */
        public static function isPhpIdentifier(string $value): bool
        {
                return preg_match('#^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$#D', $value) === 1;
        }


        /**
         * Determines if type is PHP built-in type. Otherwise, it is the class name.
         */
        public static function isBuiltinType(string $type): bool
        {
                return isset(self::BuiltinTypes[strtolower($type)]);
        }


        /**
         * Determines if type is special class name self/parent/static.
         */
        public static function isClassKeyword(string $name): bool
        {
                return (bool) preg_match('#^(self|parent|static)$#Di', $name);
        }


        /**
         * Checks whether the given type declaration is syntactically valid.
         */
        public static function isTypeDeclaration(string $type): bool
        {
                return (bool) preg_match(<<<'XX'
                        ~((?n)
                                \?? (?<type> \\? (?<name> [a-zA-Z_\x7f-\xff][\w\x7f-\xff]*) (\\ (?&name))* ) |
                                (?<intersection> (?&type) (& (?&type))+ ) |
                                (?<upart> (?&type) | \( (?&intersection) \) )  (\| (?&upart))+
                        )$~xAD
                        XX, $type);
        }
}

1	<?php
2
3	/**
4	* This file is part of the Nette Framework (https://nette.org)
5	* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
6	*/
7
8	declare(strict_types=1);
9
10	namespace Nette\Utils;
11
12	use Nette;
13	use function array_key_exists, class_exists, explode, gettype, interface_exists, is_callable, is_float, is_int, is_iterable, is_numeric, is_object, is_string, preg_match, str_ends_with, str_replace, str_starts_with, strlen, strtolower, substr, trait_exists, var_export;
14
15
16	/**
17	* Validation utilities.
18	*/
19	class Validators
20	{
21	use Nette\StaticClass;
22
23	private const BuiltinTypes = [
24	'string' => 1, 'int' => 1, 'float' => 1, 'bool' => 1, 'array' => 1, 'object' => 1,
25	'callable' => 1, 'iterable' => 1, 'void' => 1, 'null' => 1, 'mixed' => 1, 'false' => 1,
26	'never' => 1, 'true' => 1,
27	];
28
29	/** @var array<string,?callable> */
30	protected static $validators = [
31	// PHP types
32	'array' => 'is_array',
33	'bool' => 'is_bool',
34	'boolean' => 'is_bool',
35	'float' => 'is_float',
36	'int' => 'is_int',
37	'integer' => 'is_int',
38	'null' => 'is_null',
39	'object' => 'is_object',
40	'resource' => 'is_resource',
41	'scalar' => 'is_scalar',
42	'string' => 'is_string',
43
44	// pseudo-types
45	'callable' => [self::class, 'isCallable'],
46	'iterable' => 'is_iterable',
47	'list' => [Arrays::class, 'isList'],
48	'mixed' => [self::class, 'isMixed'],
49	'none' => [self::class, 'isNone'],
50	'number' => [self::class, 'isNumber'],
51	'numeric' => [self::class, 'isNumeric'],
52	'numericint' => [self::class, 'isNumericInt'],
53
54	// string patterns
55	'alnum' => 'ctype_alnum',
56	'alpha' => 'ctype_alpha',
57	'digit' => 'ctype_digit',
58	'lower' => 'ctype_lower',
59	'pattern' => null,
60	'space' => 'ctype_space',
61	'unicode' => [self::class, 'isUnicode'],
62	'upper' => 'ctype_upper',
63	'xdigit' => 'ctype_xdigit',
64
65	// syntax validation
66	'email' => [self::class, 'isEmail'],
67	'identifier' => [self::class, 'isPhpIdentifier'],
68	'uri' => [self::class, 'isUri'],
69	'url' => [self::class, 'isUrl'],
70
71	// environment validation
72	'class' => 'class_exists',
73	'interface' => 'interface_exists',
74	'directory' => 'is_dir',
75	'file' => 'is_file',
76	'type' => [self::class, 'isType'],
77	];
78
79	/** @var array<string,callable> */
80	protected static $counters = [
81	'string' => 'strlen',
82	'unicode' => [Strings::class, 'length'],
83	'array' => 'count',
84	'list' => 'count',
85	'alnum' => 'strlen',
86	'alpha' => 'strlen',
87	'digit' => 'strlen',
88	'lower' => 'strlen',
89	'space' => 'strlen',
90	'upper' => 'strlen',
91	'xdigit' => 'strlen',
92	];
93
94
95	/**
96	* Verifies that the value is of expected types separated by pipe.
97	* @throws AssertionException
98	*/
99	public static function assert(mixed $value, string $expected, string $label = 'variable'): void	1✔
100	{
101	if (!static::is($value, $expected)) {	1✔
102	$expected = str_replace(['\|', ':'], [' or ', ' in range '], $expected);	1✔
103	$translate = ['boolean' => 'bool', 'integer' => 'int', 'double' => 'float', 'NULL' => 'null'];	1✔
104	$type = $translate[gettype($value)] ?? gettype($value);	1✔
105	if (is_int($value) \|\| is_float($value) \|\| (is_string($value) && strlen($value) < 40)) {	1✔
106	$type .= ' ' . var_export($value, return: true);	1✔
107	} elseif (is_object($value)) {	1✔
108	$type .= ' ' . $value::class;	1✔
109	}
110
111	throw new AssertionException("The $label expects to be $expected, $type given.");	1✔
112	}
113	}
114
115
116	/**
117	* Verifies that element $key in array is of expected types separated by pipe.
118	* @param mixed[] $array
119	* @throws AssertionException
120	*/
121	public static function assertField(	1✔
122	array $array,
123	$key,
124	?string $expected = null,
125	string $label = "item '%' in array",
126	): void
127	{
128	if (!array_key_exists($key, $array)) {	1✔
129	throw new AssertionException('Missing ' . str_replace('%', $key, $label) . '.');	1✔
130
131	} elseif ($expected) {	1✔
132	static::assert($array[$key], $expected, str_replace('%', $key, $label));	1✔
133	}
134	}	1✔
135
136
137	/**
138	* Verifies that the value is of expected types separated by pipe.
139	*/
140	public static function is(mixed $value, string $expected): bool	1✔
141	{
142	foreach (explode('\|', $expected) as $item) {	1✔
143	if (str_ends_with($item, '[]')) {	1✔
144	if (is_iterable($value) && self::everyIs($value, substr($item, 0, -2))) {	1✔
145	return true;	1✔
146	}
147
148	continue;	1✔
149	} elseif (str_starts_with($item, '?')) {	1✔
150	$item = substr($item, 1);	1✔
151	if ($value === null) {	1✔
152	return true;	1✔
153	}
154	}
155
156	[$type] = $item = explode(':', $item, 2);	1✔
157	if (isset(static::$validators[$type])) {	1✔
158	try {
159	if (!static::$validators[$type]($value)) {	1✔
160	continue;	1✔
161	}
162	} catch (\TypeError $e) {	1✔
163	continue;	1✔
164	}
165	} elseif ($type === 'pattern') {	1✔
166	if (Strings::match($value, '\|^' . ($item[1] ?? '') . '$\|D')) {	1✔
167	return true;	1✔
168	}
169
170	continue;	1✔
171	} elseif (!$value instanceof $type) {	1✔
172	continue;	1✔
173	}
174
175	if (isset($item[1])) {	1✔
176	$length = $value;	1✔
177	if (isset(static::$counters[$type])) {	1✔
178	$length = static::$counters[$type]($value);	1✔
179	}
180
181	$range = explode('..', $item[1]);	1✔
182	if (!isset($range[1])) {	1✔
183	$range[1] = $range[0];	1✔
184	}
185
186	if (($range[0] !== '' && $length < $range[0]) \|\| ($range[1] !== '' && $length > $range[1])) {	1✔
187	continue;	1✔
188	}
189	}
190
191	return true;	1✔
192	}
193
194	return false;	1✔
195	}
196
197
198	/**
199	* Finds whether all values are of expected types separated by pipe.
200	* @param mixed[] $values
201	*/
202	public static function everyIs(iterable $values, string $expected): bool	1✔
203	{
204	foreach ($values as $value) {	1✔
205	if (!static::is($value, $expected)) {	1✔
206	return false;	1✔
207	}
208	}
209
210	return true;	1✔
211	}
212
213
214	/**
215	* Checks if the value is an integer or a float.
216	* @return ($value is int\|float ? true : false)
217	*/
218	public static function isNumber(mixed $value): bool	1✔
219	{
220	return is_int($value) \|\| is_float($value);	1✔
221	}
222
223
224	/**
225	* Checks if the value is an integer or a integer written in a string.
226	* @return ($value is non-empty-string ? bool : ($value is int ? true : false))
227	*/
228	public static function isNumericInt(mixed $value): bool	1✔
229	{
230	return is_int($value) \|\| (is_string($value) && preg_match('#^[+-]?[0-9]+$#D', $value));	1✔
231	}
232
233
234	/**
235	* Checks if the value is a number or a number written in a string.
236	* @return ($value is non-empty-string ? bool : ($value is int\|float ? true : false))
237	*/
238	public static function isNumeric(mixed $value): bool	1✔
239	{
240	return is_float($value) \|\| is_int($value) \|\| (is_string($value) && preg_match('#^[+-]?([0-9]++\.?[0-9]*\|\.[0-9]+)$#D', $value));	1✔
241	}
242
243
244	/**
245	* Checks if the value is a syntactically correct callback.
246	*/
247	public static function isCallable(mixed $value): bool	1✔
248	{
249	return $value && is_callable($value, syntax_only: true);	1✔
250	}
251
252
253	/**
254	* Checks if the value is a valid UTF-8 string.
255	*/
256	public static function isUnicode(mixed $value): bool	1✔
257	{
258	return is_string($value) && preg_match('##u', $value);	1✔
259	}
260
261
262	/**
263	* Checks if the value is 0, '', false or null.
264	* @return ($value is 0\|''\|false\|null ? true : false)
265	*/
266	public static function isNone(mixed $value): bool	1✔
267	{
268	return $value == null; // intentionally ==	1✔
269	}
270
271
272	/** @internal */
273	public static function isMixed(): bool
274	{
275	return true;	1✔
276	}
277
278
279	/**
280	* Checks if a variable is a zero-based integer indexed array.
281	* @deprecated use Nette\Utils\Arrays::isList
282	* @return ($value is list ? true : false)
283	*/
284	public static function isList(mixed $value): bool
285	{
UNCOV 286	return Arrays::isList($value);	×
287	}
288
289
290	/**
291	* Checks if the value is in the given range [min, max], where the upper or lower limit can be omitted (null).
292	* Numbers, strings and DateTime objects can be compared.
293	*/
294	public static function isInRange(mixed $value, array $range): bool	1✔
295	{
296	if ($value === null \|\| !(isset($range[0]) \|\| isset($range[1]))) {	1✔
297	return false;	1✔
298	}
299
300	$limit = $range[0] ?? $range[1];	1✔
301	if (is_string($limit)) {	1✔
302	$value = (string) $value;	1✔
303	} elseif ($limit instanceof \DateTimeInterface) {	1✔
304	if (!$value instanceof \DateTimeInterface) {	1✔
UNCOV 305	return false;	×
306	}
307	} elseif (is_numeric($value)) {	1✔
308	$value *= 1;	1✔
309	} else {
310	return false;	1✔
311	}
312
313	return (!isset($range[0]) \|\| ($value >= $range[0])) && (!isset($range[1]) \|\| ($value <= $range[1]));	1✔
314	}
315
316
317	/**
318	* Checks if the value is a valid email address. It does not verify that the domain actually exists, only the syntax is verified.
319	*/
320	public static function isEmail(string $value): bool	1✔
321	{
322	$atom = "[-a-z0-9!#$%&'*+/=?^_`{\|}~]"; // RFC 5322 unquoted characters in local-part	1✔
323	$alpha = "a-z\x80-\xFF"; // superset of IDN	1✔
324	return (bool) preg_match(<<<XX	1✔
325	(^(?n)	1✔
326	("([ !#-[\\]-~]\|\\\\[ -~])+"\|$atom+(\\.$atom+)) # quoted or unquoted	1✔
327	@
328	([0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)+ # domain - RFC 1034	1✔
329	[$alpha]([-0-9$alpha]{0,17}[$alpha])? # top domain	1✔
330	$)Dix
331	XX, $value);	1✔
332	}
333
334
335	/**
336	* Checks if the value is a valid URL address.
337	*/
338	public static function isUrl(string $value): bool	1✔
339	{
340	$alpha = "a-z\x80-\xFF";	1✔
341	return (bool) preg_match(<<<XX	1✔
342	(^(?n)	1✔
343	https?://(
344	(([-_0-9$alpha]+\\.)* # subdomain	1✔
345	[0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)? # domain	1✔
346	[$alpha]([-0-9$alpha]{0,17}[$alpha])? # top domain	1✔
347	\|\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3} # IPv4
348	\|\\[[0-9a-f:]{3,39}\\] # IPv6
349	)(:\\d{1,5})? # port
350	(/\\S*)? # path
351	(\\?\\S*)? # query
352	(\\#\\S*)? # fragment
353	$)Dix
354	XX, $value);	1✔
355	}
356
357
358	/**
359	* Checks if the value is a valid URI address, that is, actually a string beginning with a syntactically valid schema.
360	*/
361	public static function isUri(string $value): bool	1✔
362	{
363	return (bool) preg_match('#^[a-z\d+\.-]+:\S+$#Di', $value);	1✔
364	}
365
366
367	/**
368	* Checks whether the input is a class, interface or trait.
369	* @deprecated
370	*/
371	public static function isType(string $type): bool	1✔
372	{
373	return class_exists($type) \|\| interface_exists($type) \|\| trait_exists($type);	1✔
374	}
375
376
377	/**
378	* Checks whether the input is a valid PHP identifier.
379	*/
380	public static function isPhpIdentifier(string $value): bool	1✔
381	{
382	return preg_match('#^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$#D', $value) === 1;	1✔
383	}
384
385
386	/**
387	* Determines if type is PHP built-in type. Otherwise, it is the class name.
388	*/
389	public static function isBuiltinType(string $type): bool	1✔
390	{
391	return isset(self::BuiltinTypes[strtolower($type)]);	1✔
392	}
393
394
395	/**
396	* Determines if type is special class name self/parent/static.
397	*/
398	public static function isClassKeyword(string $name): bool	1✔
399	{
400	return (bool) preg_match('#^(self\|parent\|static)$#Di', $name);	1✔
401	}
402
403
404	/**
405	* Checks whether the given type declaration is syntactically valid.
406	*/
407	public static function isTypeDeclaration(string $type): bool	1✔
408	{
409	return (bool) preg_match(<<<'XX'	1✔
410	~((?n)	1✔
411	\?? (?<type> \\? (?<name> [a-zA-Z_\x7f-\xff][\w\x7f-\xff]) (\\ (?&name)) ) \|
412	(?<intersection> (?&type) (& (?&type))+ ) \|
413	(?<upart> (?&type) \| \( (?&intersection) \) ) (\\| (?&upart))+
414	)$~xAD
415	XX, $type);	1✔
416	}
417	}

nette / utils / 20431395313

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