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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Strings; |
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final class CombinedRegexp |
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{ |
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private string $freeQuoter; |
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private string $quoteReplacer; |
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private string $compiledPattern; |
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public function __construct( |
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private array $patterns, |
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private string $regexpQuoter = '/' |
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) { |
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$this->freeQuoter = $this->regexpQuoter === '/' ? '~' : '/'; |
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$this->quoteReplacer = preg_quote($this->regexpQuoter, $this->regexpQuoter); |
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$this->compiledPattern = $this->compilePatterns($this->patterns); |
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} |
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public function getCompiledPattern(): string |
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{ |
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return $this->compiledPattern; |
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} |
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public function matchAny(string $string, string $flags = 'i'): bool |
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{ |
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$pattern = $this->compiledPattern . $flags; |
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return preg_match($pattern, $string) === 1; |
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} |
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public function matchPattern(string $string) |
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{ |
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return $this->patterns[$this->matchPatternPosition($string)]; |
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} |
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public function matchPatternPosition(string $string): int |
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{ |
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$match = preg_match($this->compiledPattern, $string, $matches); |
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if ($match !== 1) { |
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throw new \Exception( |
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sprintf( |
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'Failed to match pattern "%s" with string "%s".', |
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$this->compiledPattern, |
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$string, |
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) |
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); |
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} |
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return count($matches) - 1; |
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} |
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private function compilePatterns(array $patterns): string |
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{ |
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$quotedPatterns = []; |
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for ($i = 0; $i < count($patterns); $i++) { |
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$quotedPatterns[] = preg_replace( |
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$this->freeQuoter . $this->regexpQuoter . $this->freeQuoter, |
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$this->quoteReplacer, |
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$patterns[$i] |
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) . str_repeat('()', $i); |
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} |
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$combinedRegexps = '(?|' . implode('|', $quotedPatterns) . ')'; |
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return $this->freeQuoter . $combinedRegexps . $this->freeQuoter; |
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} |
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} |
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yiisoft /
strings
If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: