/home/kueuepay/www/vendor/nikic/php-parser/lib/PhpParser/Lexer.php
<?php declare(strict_types=1);

namespace PhpParser;

require __DIR__ . '/compatibility_tokens.php';

class Lexer {
    /**
     * Tokenize the provided source code.
     *
     * The token array is in the same format as provided by the PhpToken::tokenize() method in
     * PHP 8.0. The tokens are instances of PhpParser\Token, to abstract over a polyfill
     * implementation in earlier PHP version.
     *
     * The token array is terminated by a sentinel token with token ID 0.
     * The token array does not discard any tokens (i.e. whitespace and comments are included).
     * The token position attributes are against this token array.
     *
     * @param string $code The source code to tokenize.
     * @param ErrorHandler|null $errorHandler Error handler to use for lexing errors. Defaults to
     *                                        ErrorHandler\Throwing.
     * @return Token[] Tokens
     */
    public function tokenize(string $code, ?ErrorHandler $errorHandler = null): array {
        if (null === $errorHandler) {
            $errorHandler = new ErrorHandler\Throwing();
        }

        $scream = ini_set('xdebug.scream', '0');

        $tokens = @Token::tokenize($code);
        $this->postprocessTokens($tokens, $errorHandler);

        if (false !== $scream) {
            ini_set('xdebug.scream', $scream);
        }

        return $tokens;
    }

    private function handleInvalidCharacter(Token $token, ErrorHandler $errorHandler): void {
        $chr = $token->text;
        if ($chr === "\0") {
            // PHP cuts error message after null byte, so need special case
            $errorMsg = 'Unexpected null byte';
        } else {
            $errorMsg = sprintf(
                'Unexpected character "%s" (ASCII %d)', $chr, ord($chr)
            );
        }

        $errorHandler->handleError(new Error($errorMsg, [
            'startLine' => $token->line,
            'endLine' => $token->line,
            'startFilePos' => $token->pos,
            'endFilePos' => $token->pos,
        ]));
    }

    private function isUnterminatedComment(Token $token): bool {
        return $token->is([\T_COMMENT, \T_DOC_COMMENT])
            && substr($token->text, 0, 2) === '/*'
            && substr($token->text, -2) !== '*/';
    }

    /**
     * @param list<Token> $tokens
     */
    protected function postprocessTokens(array &$tokens, ErrorHandler $errorHandler): void {
        // This function reports errors (bad characters and unterminated comments) in the token
        // array, and performs certain canonicalizations:
        //  * Use PHP 8.1 T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG and
        //    T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG tokens used to disambiguate intersection types.
        //  * Add a sentinel token with ID 0.

        $numTokens = \count($tokens);
        if ($numTokens === 0) {
            // Empty input edge case: Just add the sentinel token.
            $tokens[] = new Token(0, "\0", 1, 0);
            return;
        }

        for ($i = 0; $i < $numTokens; $i++) {
            $token = $tokens[$i];
            if ($token->id === \T_BAD_CHARACTER) {
                $this->handleInvalidCharacter($token, $errorHandler);
            }

            if ($token->id === \ord('&')) {
                $next = $i + 1;
                while (isset($tokens[$next]) && $tokens[$next]->id === \T_WHITESPACE) {
                    $next++;
                }
                $followedByVarOrVarArg = isset($tokens[$next]) &&
                    $tokens[$next]->is([\T_VARIABLE, \T_ELLIPSIS]);
                $token->id = $followedByVarOrVarArg
                    ? \T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG
                    : \T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG;
            }
        }

        // Check for unterminated comment
        $lastToken = $tokens[$numTokens - 1];
        if ($this->isUnterminatedComment($lastToken)) {
            $errorHandler->handleError(new Error('Unterminated comment', [
                'startLine' => $lastToken->line,
                'endLine' => $lastToken->getEndLine(),
                'startFilePos' => $lastToken->pos,
                'endFilePos' => $lastToken->getEndPos(),
            ]));
        }

        // Add sentinel token.
        $tokens[] = new Token(0, "\0", $lastToken->getEndLine(), $lastToken->getEndPos());
    }
}
Path: home/kueuepay/www/vendor/nikic/php-parser/lib/PhpParser
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Kueue Pay Payment Gateway Solutions Developer API Documentation

Welcome to the Kueue Pay Payment Gateway Solutions Developer API Documentation. This comprehensive guide will empower you to seamlessly integrate our advanced payment gateway into your website, enhancing your customers’ payment experience and enabling efficient transaction processing. The Kueue Pay Developer API is designed for developers and entrepreneurs who seek simplicity, security, and reliability in their payment processing solutions.

1. Introduction

The Kueue Pay Developer API allows you to seamlessly integrate Kueue Pay’s Payment Gateway Solutions into your website, enabling secure and efficient debit and credit card transactions. With our API, you can initiate payments, check payment statuses, and even process refunds, all while ensuring a smooth and streamlined payment experience for your customers.

Prerequisites