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<?php |
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namespace Lepton\Routing; |
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class UrlResolver |
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{ |
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public function __construct(private $pattern){} |
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public function patternPrepare($pattern) |
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{ |
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$pattern = str_replace('?', '\?', $pattern); |
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// if the type selector is not followed by a quantifier, than choose any length |
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$pattern = preg_replace('/<([^{\d}]+?)(?!{[\d]+}):(.+?)>/', '<${1}+:${2}>', $pattern); |
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// if the type selector is "int", match numbers |
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$pattern = preg_replace('/<int([+{\d}]+?):(.+?)>/', '<\\d${1}:${2}>', $pattern); |
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// if the type selector is "alpha" or "alnum" |
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$pattern = preg_replace('/<(alpha|alnum)([+{\d}]+?):(.+?)>/', '<[[:${1}:]]${2}:${3}>', $pattern); |
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// if there is no type selector, match anything but a / |
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$pattern = preg_replace('/<([^:]+?)>/', '(?<${1}>[^/]+)', $pattern); |
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// build regex |
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$pattern = preg_replace('/<(.+?):(.+?)>/', '(?<${2}>${1})', $pattern); |
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// replace slashes for regex |
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$pattern = str_replace('/', '\/', $pattern); |
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return $pattern; |
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} |
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protected function patternMatch($pattern, &$parameters) |
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{ |
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$parameters = array(); |
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$pattern = $this->patternPrepare($pattern); |
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// perform actual match on request uri |
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$is_match = preg_match(sprintf("/^%s$/", $pattern), $_SERVER['REQUEST_URI'], $parameters); |
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// keep only string keys |
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$parameters = array_filter($parameters, function ($k) { |
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return is_string($k); |
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}, ARRAY_FILTER_USE_KEY); |
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return $is_match; |
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} |
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public function match($pattern): bool|array |
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{ |
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$parameters = array(); |
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return $this->patternMatch($pattern, $parameters) ? $parameters : false; |
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} |
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} |
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ai-sf /
lepton
