<?php

/**
 * Ensures all control structure keywords are lowercase.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 */
namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\ControlStructures;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
class LowercaseDeclarationSniff implements Sniff
{
    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register()
    {
        return [\T_IF, \T_ELSE, \T_ELSEIF, \T_FOREACH, \T_FOR, \T_DO, \T_SWITCH, \T_WHILE, \T_TRY, \T_CATCH, \T_MATCH];
    }
    //end register()
    /**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token in
     *                                               the stack passed in $tokens.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();
        $content = $tokens[$stackPtr]['content'];
        $contentLc = \strtolower($content);
        if ($content !== $contentLc) {
            $error = '%s keyword must be lowercase; expected "%s" but found "%s"';
            $data = [\strtoupper($content), $contentLc, $content];
            $fix = $phpcsFile->addFixableError($error, $stackPtr, 'FoundUppercase', $data);
            if ($fix === \true) {
                $phpcsFile->fixer->replaceToken($stackPtr, $contentLc);
            }
        }
    }
    //end process()
}
//end class
