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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Strings; |
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/** |
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* A wildcard pattern to match strings against. |
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* |
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* - `\` escapes other special characters if usage of escape character is not turned off. |
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* - `*` matches any string including the empty string. Slashes do not match. |
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* - `**` matches any string including the empty string and slashes. |
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* - `?` matches any single character. |
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* - `[seq]` matches any character in seq. |
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* - `[a-z]` matches any character from a to z. |
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* - `[!seq]` matches any character not in seq. |
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* - `[[:alnum:]]` matches POSIX style character classes, |
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* see {@see https://www.php.net/manual/en/regexp.reference.character-classes.php}. |
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*/ |
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final class WildcardPattern |
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{ |
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private bool $withoutEscape = false; |
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private bool $matchLeadingPeriodExactly = false; |
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private bool $ignoreCase = false; |
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private bool $matchEnding = false; |
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private string $pattern; |
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/** |
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* @param string $pattern The shell wildcard pattern to match against. |
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*/ |
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public function __construct(string $pattern) |
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{ |
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$this->pattern = $pattern; |
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} |
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/** |
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* Checks if the passed string would match the given shell wildcard pattern. |
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* |
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* @param string $string The tested string. |
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* |
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* @return bool Whether the string matches pattern or not. |
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*/ |
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public function match(string $string): bool |
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{ |
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if ($this->pattern === '**' && !$this->matchLeadingPeriodExactly) { |
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return true; |
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} |
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$pattern = $this->pattern; |
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if ($this->matchLeadingPeriodExactly) { |
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$pattern = preg_replace('/^[*?]/', '[!.]', $pattern); |
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} |
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$replacements = [ |
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'\*\*' => '.*', |
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'\\\\\\\\' => '\\\\', |
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'\\\\\\*' => '[*]', |
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'\\\\\\?' => '[?]', |
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'\*' => '[^/\\\\]*', |
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'\?' => '[^/\\\\]', |
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'\[\!' => '[^', |
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'\[' => '[', |
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'\]' => ']', |
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'\-' => '-', |
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]; |
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if ($this->withoutEscape) { |
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unset($replacements['\\\\\\\\'], $replacements['\\\\\\*'], $replacements['\\\\\\?']); |
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} |
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$pattern = strtr(preg_quote($pattern, '#'), $replacements); |
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$pattern = '#' . ($this->matchEnding ? '' : '^') . $pattern . '$#us'; |
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if ($this->ignoreCase) { |
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$pattern .= 'i'; |
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} |
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return preg_match($pattern, $string) === 1; |
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} |
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/** |
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* Disables using `\` to escape following special character. `\` becomes regular character. |
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* |
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* @param bool $flag |
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* |
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* @return self |
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*/ |
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public function withoutEscape(bool $flag = true): self |
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{ |
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$new = clone $this; |
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$new->withoutEscape = $flag; |
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return $new; |
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} |
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/** |
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* Make pattern case insensitive. |
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* |
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* @param bool $flag |
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* |
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* @return self |
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*/ |
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public function ignoreCase(bool $flag = true): self |
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{ |
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$new = clone $this; |
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$new->ignoreCase = $flag; |
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return $new; |
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} |
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/** |
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* Do not match `.` character at the beginning of string with wildcards. |
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* Useful for matching file paths. |
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* |
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* @param bool $flag |
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* |
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* @return self |
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*/ |
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public function exactLeadingPeriod(bool $flag = true): self |
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{ |
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$new = clone $this; |
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$new->matchLeadingPeriodExactly = $flag; |
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return $new; |
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} |
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/** |
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* Match ending only. |
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* By default wildcard pattern matches string exactly. By using this mode, beginning of the string could be anything. |
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* |
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* @param bool $flag |
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* |
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* @return self |
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*/ |
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public function matchEnding(bool $flag = true): self |
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{ |
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$new = clone $this; |
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$new->matchEnding = $flag; |
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return $new; |
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} |
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/** |
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* Returns whether the pattern contains a dynamic part i.e. |
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* has unescaped "*", "{", "?", or "[" character. |
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* |
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* @param string $pattern The pattern to check. |
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* |
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* @return bool Whether the pattern contains a dynamic part. |
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*/ |
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public static function isDynamic(string $pattern): bool |
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{ |
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$position = strpos($pattern, '*'); |
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if ($position !== false && ($position === 0 || $pattern[$position - 1] !== '\\')) { |
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return true; |
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} |
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$position = strpos($pattern, '{'); |
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if ($position !== false && ($position === 0 || $pattern[$position - 1] !== '\\')) { |
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return true; |
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} |
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$position = strpos($pattern, '?'); |
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if ($position !== false && ($position === 0 || $pattern[$position - 1] !== '\\')) { |
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return true; |
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} |
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$position = strpos($pattern, '['); |
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return $position !== false && ($position === 0 || $pattern[$position - 1] !== '\\'); |
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} |
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} |
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yiisoft /
strings
