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Strings.php
458 lines
| 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 | declare (strict_types=1); |
| 8 | namespace FapiMember\Library\Nette\Utils; |
| 9 | |
| 10 | use FapiMember\Library\JetBrains\PhpStorm\Language; |
| 11 | use FapiMember\Library\Nette; |
| 12 | use function is_array, is_object, strlen; |
| 13 | /** |
| 14 | * String tools library. |
| 15 | */ |
| 16 | class Strings |
| 17 | { |
| 18 | use Nette\StaticClass; |
| 19 | public const TRIM_CHARACTERS = " \t\n\r\x00\v "; |
| 20 | /** |
| 21 | * Checks if the string is valid in UTF-8 encoding. |
| 22 | */ |
| 23 | public static function checkEncoding(string $s): bool |
| 24 | { |
| 25 | return $s === self::fixEncoding($s); |
| 26 | } |
| 27 | /** |
| 28 | * Removes all invalid UTF-8 characters from a string. |
| 29 | */ |
| 30 | public static function fixEncoding(string $s): string |
| 31 | { |
| 32 | // removes xD800-xDFFF, x110000 and higher |
| 33 | return htmlspecialchars_decode(htmlspecialchars($s, \ENT_NOQUOTES | \ENT_IGNORE, 'UTF-8'), \ENT_NOQUOTES); |
| 34 | } |
| 35 | /** |
| 36 | * Returns a specific character in UTF-8 from code point (number in range 0x0000..D7FF or 0xE000..10FFFF). |
| 37 | * @throws Nette\InvalidArgumentException if code point is not in valid range |
| 38 | */ |
| 39 | public static function chr(int $code): string |
| 40 | { |
| 41 | if ($code < 0 || $code >= 0xd800 && $code <= 0xdfff || $code > 0x10ffff) { |
| 42 | throw new Nette\InvalidArgumentException('Code point must be in range 0x0 to 0xD7FF or 0xE000 to 0x10FFFF.'); |
| 43 | } elseif (!extension_loaded('iconv')) { |
| 44 | throw new Nette\NotSupportedException(__METHOD__ . '() requires ICONV extension that is not loaded.'); |
| 45 | } |
| 46 | return iconv('UTF-32BE', 'UTF-8//IGNORE', pack('N', $code)); |
| 47 | } |
| 48 | /** |
| 49 | * Starts the $haystack string with the prefix $needle? |
| 50 | */ |
| 51 | public static function startsWith(string $haystack, string $needle): bool |
| 52 | { |
| 53 | return strncmp($haystack, $needle, strlen($needle)) === 0; |
| 54 | } |
| 55 | /** |
| 56 | * Ends the $haystack string with the suffix $needle? |
| 57 | */ |
| 58 | public static function endsWith(string $haystack, string $needle): bool |
| 59 | { |
| 60 | return $needle === '' || substr($haystack, -strlen($needle)) === $needle; |
| 61 | } |
| 62 | /** |
| 63 | * Does $haystack contain $needle? |
| 64 | */ |
| 65 | public static function contains(string $haystack, string $needle): bool |
| 66 | { |
| 67 | return strpos($haystack, $needle) !== \false; |
| 68 | } |
| 69 | /** |
| 70 | * Returns a part of UTF-8 string specified by starting position and length. If start is negative, |
| 71 | * the returned string will start at the start'th character from the end of string. |
| 72 | */ |
| 73 | public static function substring(string $s, int $start, ?int $length = null): string |
| 74 | { |
| 75 | if (function_exists('mb_substr')) { |
| 76 | return mb_substr($s, $start, $length, 'UTF-8'); |
| 77 | // MB is much faster |
| 78 | } elseif (!extension_loaded('iconv')) { |
| 79 | throw new Nette\NotSupportedException(__METHOD__ . '() requires extension ICONV or MBSTRING, neither is loaded.'); |
| 80 | } elseif ($length === null) { |
| 81 | $length = self::length($s); |
| 82 | } elseif ($start < 0 && $length < 0) { |
| 83 | $start += self::length($s); |
| 84 | // unifies iconv_substr behavior with mb_substr |
| 85 | } |
| 86 | return iconv_substr($s, $start, $length, 'UTF-8'); |
| 87 | } |
| 88 | /** |
| 89 | * Removes control characters, normalizes line breaks to `\n`, removes leading and trailing blank lines, |
| 90 | * trims end spaces on lines, normalizes UTF-8 to the normal form of NFC. |
| 91 | */ |
| 92 | public static function normalize(string $s): string |
| 93 | { |
| 94 | // convert to compressed normal form (NFC) |
| 95 | if (class_exists('Normalizer', \false) && ($n = \Normalizer::normalize($s, \Normalizer::FORM_C)) !== \false) { |
| 96 | $s = $n; |
| 97 | } |
| 98 | $s = self::normalizeNewLines($s); |
| 99 | // remove control characters; leave \t + \n |
| 100 | $s = self::pcre('preg_replace', ['#[\x00-\x08\x0B-\x1F\x7F-\x9F]+#u', '', $s]); |
| 101 | // right trim |
| 102 | $s = self::pcre('preg_replace', ['#[\t ]+$#m', '', $s]); |
| 103 | // leading and trailing blank lines |
| 104 | $s = trim($s, "\n"); |
| 105 | return $s; |
| 106 | } |
| 107 | /** |
| 108 | * Standardize line endings to unix-like. |
| 109 | */ |
| 110 | public static function normalizeNewLines(string $s): string |
| 111 | { |
| 112 | return str_replace(["\r\n", "\r"], "\n", $s); |
| 113 | } |
| 114 | /** |
| 115 | * Converts UTF-8 string to ASCII, ie removes diacritics etc. |
| 116 | */ |
| 117 | public static function toAscii(string $s): string |
| 118 | { |
| 119 | $iconv = defined('ICONV_IMPL') ? trim(\ICONV_IMPL, '"\'') : null; |
| 120 | static $transliterator = null; |
| 121 | if ($transliterator === null) { |
| 122 | if (class_exists('Transliterator', \false)) { |
| 123 | $transliterator = \Transliterator::create('Any-Latin; Latin-ASCII'); |
| 124 | } else { |
| 125 | trigger_error(__METHOD__ . "(): it is recommended to enable PHP extensions 'intl'.", \E_USER_NOTICE); |
| 126 | $transliterator = \false; |
| 127 | } |
| 128 | } |
| 129 | // remove control characters and check UTF-8 validity |
| 130 | $s = self::pcre('preg_replace', ['#[^\x09\x0A\x0D\x20-\x7E\xA0-\x{2FF}\x{370}-\x{10FFFF}]#u', '', $s]); |
| 131 | // transliteration (by Transliterator and iconv) is not optimal, replace some characters directly |
| 132 | $s = strtr($s, ["„" => '"', "“" => '"', "”" => '"', "‚" => "'", "‘" => "'", "’" => "'", "°" => '^', "Я" => 'Ya', "я" => 'ya', "Ю" => 'Yu', "ю" => 'yu', "Ä" => 'Ae', "Ö" => 'Oe', "Ü" => 'Ue', "ẞ" => 'Ss', "ä" => 'ae', "ö" => 'oe', "ü" => 'ue', "ß" => 'ss']); |
| 133 | // „ “ ” ‚ ‘ ’ ° Я я Ю ю Ä Ö Ü ẞ ä ö ü ß |
| 134 | if ($iconv !== 'libiconv') { |
| 135 | $s = strtr($s, ["®" => '(R)', "©" => '(c)', "…" => '...', "«" => '<<', "»" => '>>', "£" => 'lb', "¥" => 'yen', "²" => '^2', "³" => '^3', "µ" => 'u', "¹" => '^1', "º" => 'o', "¿" => '?', "ˊ" => "'", "ˍ" => '_', "˝" => '"', "`" => '', "€" => 'EUR', "™" => 'TM', "℮" => 'e', "←" => '<-', "↑" => '^', "→" => '->', "↓" => 'V', "↔" => '<->']); |
| 136 | // ® © … « » £ ¥ ² ³ µ ¹ º ¿ ˊ ˍ ˝ ` € ™ ℮ ← ↑ → ↓ ↔ |
| 137 | } |
| 138 | if ($transliterator) { |
| 139 | $s = $transliterator->transliterate($s); |
| 140 | // use iconv because The transliterator leaves some characters out of ASCII, eg → ʾ |
| 141 | if ($iconv === 'glibc') { |
| 142 | $s = strtr($s, '?', "\x01"); |
| 143 | // temporarily hide ? to distinguish them from the garbage that iconv creates |
| 144 | $s = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $s); |
| 145 | $s = str_replace(['?', "\x01"], ['', '?'], $s); |
| 146 | // remove garbage and restore ? characters |
| 147 | } elseif ($iconv === 'libiconv') { |
| 148 | $s = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $s); |
| 149 | } else { |
| 150 | // null or 'unknown' (#216) |
| 151 | $s = self::pcre('preg_replace', ['#[^\x00-\x7F]++#', '', $s]); |
| 152 | // remove non-ascii chars |
| 153 | } |
| 154 | } elseif ($iconv === 'glibc' || $iconv === 'libiconv') { |
| 155 | // temporarily hide these characters to distinguish them from the garbage that iconv creates |
| 156 | $s = strtr($s, '`\'"^~?', "\x01\x02\x03\x04\x05\x06"); |
| 157 | if ($iconv === 'glibc') { |
| 158 | // glibc implementation is very limited. transliterate into Windows-1250 and then into ASCII, so most Eastern European characters are preserved |
| 159 | $s = iconv('UTF-8', 'WINDOWS-1250//TRANSLIT//IGNORE', $s); |
| 160 | $s = strtr($s, "\xa5\xa3\xbc\x8c\xa7\x8a\xaa\x8d\x8f\x8e\xaf\xb9\xb3\xbe\x9c\x9a\xba\x9d\x9f\x9e\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf8\xf9\xfa\xfb\xfc\xfd\xfe\x96\xa0\x8b\x97\x9b\xa6\xad\xb7", 'ALLSSSSTZZZallssstzzzRAAAALCCCEEEEIIDDNNOOOOxRUUUUYTsraaaalccceeeeiiddnnooooruuuuyt- <->|-.'); |
| 161 | $s = self::pcre('preg_replace', ['#[^\x00-\x7F]++#', '', $s]); |
| 162 | } else { |
| 163 | $s = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $s); |
| 164 | } |
| 165 | // remove garbage that iconv creates during transliteration (eg Ý -> Y') |
| 166 | $s = str_replace(['`', "'", '"', '^', '~', '?'], '', $s); |
| 167 | // restore temporarily hidden characters |
| 168 | $s = strtr($s, "\x01\x02\x03\x04\x05\x06", '`\'"^~?'); |
| 169 | } else { |
| 170 | $s = self::pcre('preg_replace', ['#[^\x00-\x7F]++#', '', $s]); |
| 171 | // remove non-ascii chars |
| 172 | } |
| 173 | return $s; |
| 174 | } |
| 175 | /** |
| 176 | * Modifies the UTF-8 string to the form used in the URL, ie removes diacritics and replaces all characters |
| 177 | * except letters of the English alphabet and numbers with a hyphens. |
| 178 | */ |
| 179 | public static function webalize(string $s, ?string $charlist = null, bool $lower = \true): string |
| 180 | { |
| 181 | $s = self::toAscii($s); |
| 182 | if ($lower) { |
| 183 | $s = strtolower($s); |
| 184 | } |
| 185 | $s = self::pcre('preg_replace', ['#[^a-z0-9' . (($charlist !== null) ? preg_quote($charlist, '#') : '') . ']+#i', '-', $s]); |
| 186 | $s = trim($s, '-'); |
| 187 | return $s; |
| 188 | } |
| 189 | /** |
| 190 | * Truncates a UTF-8 string to given maximal length, while trying not to split whole words. Only if the string is truncated, |
| 191 | * an ellipsis (or something else set with third argument) is appended to the string. |
| 192 | */ |
| 193 | public static function truncate(string $s, int $maxLen, string $append = "…"): string |
| 194 | { |
| 195 | if (self::length($s) > $maxLen) { |
| 196 | $maxLen -= self::length($append); |
| 197 | if ($maxLen < 1) { |
| 198 | return $append; |
| 199 | } elseif ($matches = self::match($s, '#^.{1,' . $maxLen . '}(?=[\s\x00-/:-@\[-`{-~])#us')) { |
| 200 | return $matches[0] . $append; |
| 201 | } else { |
| 202 | return self::substring($s, 0, $maxLen) . $append; |
| 203 | } |
| 204 | } |
| 205 | return $s; |
| 206 | } |
| 207 | /** |
| 208 | * Indents a multiline text from the left. Second argument sets how many indentation chars should be used, |
| 209 | * while the indent itself is the third argument (*tab* by default). |
| 210 | */ |
| 211 | public static function indent(string $s, int $level = 1, string $chars = "\t"): string |
| 212 | { |
| 213 | if ($level > 0) { |
| 214 | $s = self::replace($s, '#(?:^|[\r\n]+)(?=[^\r\n])#', '$0' . str_repeat($chars, $level)); |
| 215 | } |
| 216 | return $s; |
| 217 | } |
| 218 | /** |
| 219 | * Converts all characters of UTF-8 string to lower case. |
| 220 | */ |
| 221 | public static function lower(string $s): string |
| 222 | { |
| 223 | return mb_strtolower($s, 'UTF-8'); |
| 224 | } |
| 225 | /** |
| 226 | * Converts the first character of a UTF-8 string to lower case and leaves the other characters unchanged. |
| 227 | */ |
| 228 | public static function firstLower(string $s): string |
| 229 | { |
| 230 | return self::lower(self::substring($s, 0, 1)) . self::substring($s, 1); |
| 231 | } |
| 232 | /** |
| 233 | * Converts all characters of a UTF-8 string to upper case. |
| 234 | */ |
| 235 | public static function upper(string $s): string |
| 236 | { |
| 237 | return mb_strtoupper($s, 'UTF-8'); |
| 238 | } |
| 239 | /** |
| 240 | * Converts the first character of a UTF-8 string to upper case and leaves the other characters unchanged. |
| 241 | */ |
| 242 | public static function firstUpper(string $s): string |
| 243 | { |
| 244 | return self::upper(self::substring($s, 0, 1)) . self::substring($s, 1); |
| 245 | } |
| 246 | /** |
| 247 | * Converts the first character of every word of a UTF-8 string to upper case and the others to lower case. |
| 248 | */ |
| 249 | public static function capitalize(string $s): string |
| 250 | { |
| 251 | return mb_convert_case($s, \MB_CASE_TITLE, 'UTF-8'); |
| 252 | } |
| 253 | /** |
| 254 | * Compares two UTF-8 strings or their parts, without taking character case into account. If length is null, whole strings are compared, |
| 255 | * if it is negative, the corresponding number of characters from the end of the strings is compared, |
| 256 | * otherwise the appropriate number of characters from the beginning is compared. |
| 257 | */ |
| 258 | public static function compare(string $left, string $right, ?int $length = null): bool |
| 259 | { |
| 260 | if (class_exists('Normalizer', \false)) { |
| 261 | $left = \Normalizer::normalize($left, \Normalizer::FORM_D); |
| 262 | // form NFD is faster |
| 263 | $right = \Normalizer::normalize($right, \Normalizer::FORM_D); |
| 264 | // form NFD is faster |
| 265 | } |
| 266 | if ($length < 0) { |
| 267 | $left = self::substring($left, $length, -$length); |
| 268 | $right = self::substring($right, $length, -$length); |
| 269 | } elseif ($length !== null) { |
| 270 | $left = self::substring($left, 0, $length); |
| 271 | $right = self::substring($right, 0, $length); |
| 272 | } |
| 273 | return self::lower($left) === self::lower($right); |
| 274 | } |
| 275 | /** |
| 276 | * Finds the common prefix of strings or returns empty string if the prefix was not found. |
| 277 | * @param string[] $strings |
| 278 | */ |
| 279 | public static function findPrefix(array $strings): string |
| 280 | { |
| 281 | $first = array_shift($strings); |
| 282 | for ($i = 0; $i < strlen($first); $i++) { |
| 283 | foreach ($strings as $s) { |
| 284 | if (!isset($s[$i]) || $first[$i] !== $s[$i]) { |
| 285 | while ($i && $first[$i - 1] >= "\x80" && $first[$i] >= "\x80" && $first[$i] < "\xc0") { |
| 286 | $i--; |
| 287 | } |
| 288 | return substr($first, 0, $i); |
| 289 | } |
| 290 | } |
| 291 | } |
| 292 | return $first; |
| 293 | } |
| 294 | /** |
| 295 | * Returns number of characters (not bytes) in UTF-8 string. |
| 296 | * That is the number of Unicode code points which may differ from the number of graphemes. |
| 297 | */ |
| 298 | public static function length(string $s): int |
| 299 | { |
| 300 | return function_exists('mb_strlen') ? mb_strlen($s, 'UTF-8') : strlen(utf8_decode($s)); |
| 301 | } |
| 302 | /** |
| 303 | * Removes all left and right side spaces (or the characters passed as second argument) from a UTF-8 encoded string. |
| 304 | */ |
| 305 | public static function trim(string $s, string $charlist = self::TRIM_CHARACTERS): string |
| 306 | { |
| 307 | $charlist = preg_quote($charlist, '#'); |
| 308 | return self::replace($s, '#^[' . $charlist . ']+|[' . $charlist . ']+$#Du', ''); |
| 309 | } |
| 310 | /** |
| 311 | * Pads a UTF-8 string to given length by prepending the $pad string to the beginning. |
| 312 | * @param non-empty-string $pad |
| 313 | */ |
| 314 | public static function padLeft(string $s, int $length, string $pad = ' '): string |
| 315 | { |
| 316 | $length = max(0, $length - self::length($s)); |
| 317 | $padLen = self::length($pad); |
| 318 | return str_repeat($pad, (int) ($length / $padLen)) . self::substring($pad, 0, $length % $padLen) . $s; |
| 319 | } |
| 320 | /** |
| 321 | * Pads UTF-8 string to given length by appending the $pad string to the end. |
| 322 | * @param non-empty-string $pad |
| 323 | */ |
| 324 | public static function padRight(string $s, int $length, string $pad = ' '): string |
| 325 | { |
| 326 | $length = max(0, $length - self::length($s)); |
| 327 | $padLen = self::length($pad); |
| 328 | return $s . str_repeat($pad, (int) ($length / $padLen)) . self::substring($pad, 0, $length % $padLen); |
| 329 | } |
| 330 | /** |
| 331 | * Reverses UTF-8 string. |
| 332 | */ |
| 333 | public static function reverse(string $s): string |
| 334 | { |
| 335 | if (!extension_loaded('iconv')) { |
| 336 | throw new Nette\NotSupportedException(__METHOD__ . '() requires ICONV extension that is not loaded.'); |
| 337 | } |
| 338 | return iconv('UTF-32LE', 'UTF-8', strrev(iconv('UTF-8', 'UTF-32BE', $s))); |
| 339 | } |
| 340 | /** |
| 341 | * Returns part of $haystack before $nth occurence of $needle or returns null if the needle was not found. |
| 342 | * Negative value means searching from the end. |
| 343 | */ |
| 344 | public static function before(string $haystack, string $needle, int $nth = 1): ?string |
| 345 | { |
| 346 | $pos = self::pos($haystack, $needle, $nth); |
| 347 | return ($pos === null) ? null : substr($haystack, 0, $pos); |
| 348 | } |
| 349 | /** |
| 350 | * Returns part of $haystack after $nth occurence of $needle or returns null if the needle was not found. |
| 351 | * Negative value means searching from the end. |
| 352 | */ |
| 353 | public static function after(string $haystack, string $needle, int $nth = 1): ?string |
| 354 | { |
| 355 | $pos = self::pos($haystack, $needle, $nth); |
| 356 | return ($pos === null) ? null : substr($haystack, $pos + strlen($needle)); |
| 357 | } |
| 358 | /** |
| 359 | * Returns position in characters of $nth occurence of $needle in $haystack or null if the $needle was not found. |
| 360 | * Negative value of `$nth` means searching from the end. |
| 361 | */ |
| 362 | public static function indexOf(string $haystack, string $needle, int $nth = 1): ?int |
| 363 | { |
| 364 | $pos = self::pos($haystack, $needle, $nth); |
| 365 | return ($pos === null) ? null : self::length(substr($haystack, 0, $pos)); |
| 366 | } |
| 367 | /** |
| 368 | * Returns position in characters of $nth occurence of $needle in $haystack or null if the needle was not found. |
| 369 | */ |
| 370 | private static function pos(string $haystack, string $needle, int $nth = 1): ?int |
| 371 | { |
| 372 | if (!$nth) { |
| 373 | return null; |
| 374 | } elseif ($nth > 0) { |
| 375 | if ($needle === '') { |
| 376 | return 0; |
| 377 | } |
| 378 | $pos = 0; |
| 379 | while (($pos = strpos($haystack, $needle, $pos)) !== \false && --$nth) { |
| 380 | $pos++; |
| 381 | } |
| 382 | } else { |
| 383 | $len = strlen($haystack); |
| 384 | if ($needle === '') { |
| 385 | return $len; |
| 386 | } elseif ($len === 0) { |
| 387 | return null; |
| 388 | } |
| 389 | $pos = $len - 1; |
| 390 | while (($pos = strrpos($haystack, $needle, $pos - $len)) !== \false && ++$nth) { |
| 391 | $pos--; |
| 392 | } |
| 393 | } |
| 394 | return Helpers::falseToNull($pos); |
| 395 | } |
| 396 | /** |
| 397 | * Splits a string into array by the regular expression. Parenthesized expression in the delimiter are captured. |
| 398 | * Parameter $flags can be any combination of PREG_SPLIT_NO_EMPTY and PREG_OFFSET_CAPTURE flags. |
| 399 | */ |
| 400 | public static function split(string $subject, #[Language('RegExp')] string $pattern, int $flags = 0): array |
| 401 | { |
| 402 | return self::pcre('preg_split', [$pattern, $subject, -1, $flags | \PREG_SPLIT_DELIM_CAPTURE]); |
| 403 | } |
| 404 | /** |
| 405 | * Checks if given string matches a regular expression pattern and returns an array with first found match and each subpattern. |
| 406 | * Parameter $flags can be any combination of PREG_OFFSET_CAPTURE and PREG_UNMATCHED_AS_NULL flags. |
| 407 | */ |
| 408 | public static function match(string $subject, #[Language('RegExp')] string $pattern, int $flags = 0, int $offset = 0): ?array |
| 409 | { |
| 410 | if ($offset > strlen($subject)) { |
| 411 | return null; |
| 412 | } |
| 413 | return self::pcre('preg_match', [$pattern, $subject, &$m, $flags, $offset]) ? $m : null; |
| 414 | } |
| 415 | /** |
| 416 | * Finds all occurrences matching regular expression pattern and returns a two-dimensional array. Result is array of matches (ie uses by default PREG_SET_ORDER). |
| 417 | * Parameter $flags can be any combination of PREG_OFFSET_CAPTURE, PREG_UNMATCHED_AS_NULL and PREG_PATTERN_ORDER flags. |
| 418 | */ |
| 419 | public static function matchAll(string $subject, #[Language('RegExp')] string $pattern, int $flags = 0, int $offset = 0): array |
| 420 | { |
| 421 | if ($offset > strlen($subject)) { |
| 422 | return []; |
| 423 | } |
| 424 | self::pcre('preg_match_all', [$pattern, $subject, &$m, ($flags & \PREG_PATTERN_ORDER) ? $flags : ($flags | \PREG_SET_ORDER), $offset]); |
| 425 | return $m; |
| 426 | } |
| 427 | /** |
| 428 | * Replaces all occurrences matching regular expression $pattern which can be string or array in the form `pattern => replacement`. |
| 429 | * @param string|array $pattern |
| 430 | * @param string|callable $replacement |
| 431 | */ |
| 432 | public static function replace(string $subject, #[Language('RegExp')] $pattern, $replacement = '', int $limit = -1): string |
| 433 | { |
| 434 | if (is_object($replacement) || is_array($replacement)) { |
| 435 | if (!is_callable($replacement, \false, $textual)) { |
| 436 | throw new Nette\InvalidStateException("Callback '{$textual}' is not callable."); |
| 437 | } |
| 438 | return self::pcre('preg_replace_callback', [$pattern, $replacement, $subject, $limit]); |
| 439 | } elseif (is_array($pattern) && is_string(key($pattern))) { |
| 440 | $replacement = array_values($pattern); |
| 441 | $pattern = array_keys($pattern); |
| 442 | } |
| 443 | return self::pcre('preg_replace', [$pattern, $replacement, $subject, $limit]); |
| 444 | } |
| 445 | /** @internal */ |
| 446 | public static function pcre(string $func, array $args) |
| 447 | { |
| 448 | $res = Callback::invokeSafe($func, $args, function (string $message) use ($args): void { |
| 449 | // compile-time error, not detectable by preg_last_error |
| 450 | throw new RegexpException($message . ' in pattern: ' . implode(' or ', (array) $args[0])); |
| 451 | }); |
| 452 | if (($code = preg_last_error()) && ($res === null || !in_array($func, ['preg_filter', 'preg_replace_callback', 'preg_replace'], \true))) { |
| 453 | throw new RegexpException((RegexpException::MESSAGES[$code] ?? 'Unknown error') . ' (pattern: ' . implode(' or ', (array) $args[0]) . ')', $code); |
| 454 | } |
| 455 | return $res; |
| 456 | } |
| 457 | } |
| 458 |