<?php

declare(strict_types=1);

/*
 * This file is part of the league/commonmark package.
 *
 * (c) Colin O'Dell <colinodell@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace League\CommonMark\Extension\FrontMatter;

use League\CommonMark\Extension\FrontMatter\Data\FrontMatterDataParserInterface;
use League\CommonMark\Extension\FrontMatter\Exception\InvalidFrontMatterException;
use League\CommonMark\Extension\FrontMatter\Input\MarkdownInputWithFrontMatter;
use League\CommonMark\Parser\Cursor;

final class FrontMatterParser implements FrontMatterParserInterface
{
    /** @psalm-readonly */
    private FrontMatterDataParserInterface $frontMatterParser;

    private const REGEX_FRONT_MATTER = '/^---\\R.*?\\R---\\R/s';

    public function __construct(FrontMatterDataParserInterface $frontMatterParser)
    {
        $this->frontMatterParser = $frontMatterParser;
    }

    /**
     * @throws InvalidFrontMatterException if the front matter cannot be parsed
     */
    public function parse(string $markdownContent): MarkdownInputWithFrontMatter
    {
        $cursor = new Cursor($markdownContent);

        // Locate the front matter
        $frontMatter = $cursor->match(self::REGEX_FRONT_MATTER);
        if ($frontMatter === null) {
            return new MarkdownInputWithFrontMatter($markdownContent);
        }

        // Trim the last line (ending ---s and newline)
        $frontMatter = \preg_replace('/---\R$/', '', $frontMatter);
        if ($frontMatter === null) {
            return new MarkdownInputWithFrontMatter($markdownContent);
        }

        // Parse the resulting YAML data
        $data = $this->frontMatterParser->parse($frontMatter);

        // Advance through any remaining newlines which separated the front matter from the Markdown text
        $trailingNewlines = $cursor->match('/^\R+/');

        // Calculate how many lines the Markdown is offset from the front matter by counting the number of newlines
        // Don't forget to add 1 because we stripped one out when trimming the trailing delims
        $lineOffset = \preg_match_all('/\R/', $frontMatter . $trailingNewlines) + 1;

        return new MarkdownInputWithFrontMatter($cursor->getRemainder(), $lineOffset, $data);
    }
}

• [D] Data
• [D] Exception
• [D] Input
• [D] Listener
• [D] Output
• [F] FrontMatterExtension.php
  Delete
• [F] FrontMatterParser.php
  Delete
• [F] FrontMatterParserInterface.php
  Delete
• [F] FrontMatterProviderInterface.php
  Delete

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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}