UrlRewriterRuleMaker.php

См. документацию.

<?php
 
namespace Bitrix\Main;

class UrlRewriterRuleMaker
{
    protected $condition = "";
    protected $variables = [];
    protected $rule = "";

    public function process($sefRule)
    {
        $this->rule = "";
        $this->variables = [];
        $this->condition = "#^" . preg_replace_callback("/(#[a-zA-Z0-9_]+#)/", [$this, "_callback"], $sefRule) . "\\??(.*)#";
        $i = 0;
        foreach ($this->variables as $variableName)
        {
            $i++;
            if ($this->rule)
            {
                $this->rule .= "&";
            }
            $this->rule .= $variableName . "=\$" . $i;
        }
        $i++;
        $this->rule .= "&\$" . $i;
    }

    public function getCondition()
    {
        return $this->condition;
    }

    public function getRule()
    {
        return $this->rule;
    }

    protected function _callback(array $match)
    {
        $this->variables[] = trim($match[0], "#");
        if (str_ends_with($match[0], "_PATH#"))
        {
            return "(.+?)";
        }
        return "([^/]+?)";
    }
}