晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //opt/cpanel/ea-wappspector/vendor/symfony/console/Logger/ConsoleLogger.php
<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Logger;

use Psr\Log\AbstractLogger;
use Psr\Log\InvalidArgumentException;
use Psr\Log\LogLevel;
use Symfony\Component\Console\Output\ConsoleOutputInterface;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * PSR-3 compliant console logger.
 *
 * @author Kévin Dunglas <dunglas@gmail.com>
 *
 * @see https://www.php-fig.org/psr/psr-3/
 */
class ConsoleLogger extends AbstractLogger
{
    public const INFO = 'info';
    public const ERROR = 'error';

    private $output;
    private $verbosityLevelMap = [
        LogLevel::EMERGENCY => OutputInterface::VERBOSITY_NORMAL,
        LogLevel::ALERT => OutputInterface::VERBOSITY_NORMAL,
        LogLevel::CRITICAL => OutputInterface::VERBOSITY_NORMAL,
        LogLevel::ERROR => OutputInterface::VERBOSITY_NORMAL,
        LogLevel::WARNING => OutputInterface::VERBOSITY_NORMAL,
        LogLevel::NOTICE => OutputInterface::VERBOSITY_VERBOSE,
        LogLevel::INFO => OutputInterface::VERBOSITY_VERY_VERBOSE,
        LogLevel::DEBUG => OutputInterface::VERBOSITY_DEBUG,
    ];
    private $formatLevelMap = [
        LogLevel::EMERGENCY => self::ERROR,
        LogLevel::ALERT => self::ERROR,
        LogLevel::CRITICAL => self::ERROR,
        LogLevel::ERROR => self::ERROR,
        LogLevel::WARNING => self::INFO,
        LogLevel::NOTICE => self::INFO,
        LogLevel::INFO => self::INFO,
        LogLevel::DEBUG => self::INFO,
    ];
    private $errored = false;

    public function __construct(OutputInterface $output, array $verbosityLevelMap = [], array $formatLevelMap = [])
    {
        $this->output = $output;
        $this->verbosityLevelMap = $verbosityLevelMap + $this->verbosityLevelMap;
        $this->formatLevelMap = $formatLevelMap + $this->formatLevelMap;
    }

    /**
     * {@inheritdoc}
     *
     * @return void
     */
    public function log($level, $message, array $context = [])
    {
        if (!isset($this->verbosityLevelMap[$level])) {
            throw new InvalidArgumentException(sprintf('The log level "%s" does not exist.', $level));
        }

        $output = $this->output;

        // Write to the error output if necessary and available
        if (self::ERROR === $this->formatLevelMap[$level]) {
            if ($this->output instanceof ConsoleOutputInterface) {
                $output = $output->getErrorOutput();
            }
            $this->errored = true;
        }

        // the if condition check isn't necessary -- it's the same one that $output will do internally anyway.
        // We only do it for efficiency here as the message formatting is relatively expensive.
        if ($output->getVerbosity() >= $this->verbosityLevelMap[$level]) {
            $output->writeln(sprintf('<%1$s>[%2$s] %3$s</%1$s>', $this->formatLevelMap[$level], $level, $this->interpolate($message, $context)), $this->verbosityLevelMap[$level]);
        }
    }

    /**
     * Returns true when any messages have been logged at error levels.
     *
     * @return bool
     */
    public function hasErrored()
    {
        return $this->errored;
    }

    /**
     * Interpolates context values into the message placeholders.
     *
     * @author PHP Framework Interoperability Group
     */
    private function interpolate(string $message, array $context): string
    {
        if (!str_contains($message, '{')) {
            return $message;
        }

        $replacements = [];
        foreach ($context as $key => $val) {
            if (null === $val || \is_scalar($val) || (\is_object($val) && method_exists($val, '__toString'))) {
                $replacements["{{$key}}"] = $val;
            } elseif ($val instanceof \DateTimeInterface) {
                $replacements["{{$key}}"] = $val->format(\DateTime::RFC3339);
            } elseif (\is_object($val)) {
                $replacements["{{$key}}"] = '[object '.\get_class($val).']';
            } else {
                $replacements["{{$key}}"] = '['.\gettype($val).']';
            }
        }

        return strtr($message, $replacements);
    }
}

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