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110 lines
3.5 KiB
110 lines
3.5 KiB
2 years ago
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Finder;
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/**
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* Glob matches globbing patterns against text.
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*
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* if match_glob("foo.*", "foo.bar") echo "matched\n";
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*
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* // prints foo.bar and foo.baz
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* $regex = glob_to_regex("foo.*");
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* for (['foo.bar', 'foo.baz', 'foo', 'bar'] as $t)
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* {
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* if (/$regex/) echo "matched: $car\n";
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* }
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*
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* Glob implements glob(3) style matching that can be used to match
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* against text, rather than fetching names from a filesystem.
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*
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* Based on the Perl Text::Glob module.
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*
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* @author Fabien Potencier <fabien@symfony.com> PHP port
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* @author Richard Clamp <richardc@unixbeard.net> Perl version
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* @copyright 2004-2005 Fabien Potencier <fabien@symfony.com>
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* @copyright 2002 Richard Clamp <richardc@unixbeard.net>
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*/
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class Glob
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{
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/**
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* Returns a regexp which is the equivalent of the glob pattern.
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*/
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public static function toRegex(string $glob, bool $strictLeadingDot = true, bool $strictWildcardSlash = true, string $delimiter = '#'): string
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{
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$firstByte = true;
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$escaping = false;
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$inCurlies = 0;
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$regex = '';
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$sizeGlob = \strlen($glob);
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for ($i = 0; $i < $sizeGlob; ++$i) {
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$car = $glob[$i];
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if ($firstByte && $strictLeadingDot && '.' !== $car) {
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$regex .= '(?=[^\.])';
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}
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$firstByte = '/' === $car;
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if ($firstByte && $strictWildcardSlash && isset($glob[$i + 2]) && '**' === $glob[$i + 1].$glob[$i + 2] && (!isset($glob[$i + 3]) || '/' === $glob[$i + 3])) {
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$car = '[^/]++/';
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if (!isset($glob[$i + 3])) {
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$car .= '?';
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}
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if ($strictLeadingDot) {
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$car = '(?=[^\.])'.$car;
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}
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$car = '/(?:'.$car.')*';
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$i += 2 + isset($glob[$i + 3]);
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if ('/' === $delimiter) {
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$car = str_replace('/', '\\/', $car);
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}
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}
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if ($delimiter === $car || '.' === $car || '(' === $car || ')' === $car || '|' === $car || '+' === $car || '^' === $car || '$' === $car) {
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$regex .= "\\$car";
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} elseif ('*' === $car) {
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$regex .= $escaping ? '\\*' : ($strictWildcardSlash ? '[^/]*' : '.*');
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} elseif ('?' === $car) {
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$regex .= $escaping ? '\\?' : ($strictWildcardSlash ? '[^/]' : '.');
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} elseif ('{' === $car) {
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$regex .= $escaping ? '\\{' : '(';
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if (!$escaping) {
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++$inCurlies;
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}
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} elseif ('}' === $car && $inCurlies) {
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$regex .= $escaping ? '}' : ')';
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if (!$escaping) {
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--$inCurlies;
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}
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} elseif (',' === $car && $inCurlies) {
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$regex .= $escaping ? ',' : '|';
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} elseif ('\\' === $car) {
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if ($escaping) {
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$regex .= '\\\\';
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$escaping = false;
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} else {
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$escaping = true;
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}
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continue;
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} else {
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$regex .= $car;
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}
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$escaping = false;
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}
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return $delimiter.'^'.$regex.'$'.$delimiter;
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}
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}
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