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Edit File : ConsoleSectionOutput.php \| Size : 4.07 KB
<?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\Output; use Symfony\Component\Console\Formatter\OutputFormatterInterface; use Symfony\Component\Console\Helper\Helper; use Symfony\Component\Console\Terminal; /* * @author Pierre du Plessis <pdples@gmail.com> * @author Gabriel Ostrolucký <gabriel.ostrolucky@gmail.com> / class ConsoleSectionOutput extends StreamOutput { private $content = []; private $lines = 0; private $sections; private $terminal; /* * @param resource $stream * @param ConsoleSectionOutput[] $sections / public function __construct($stream, array &$sections, int $verbosity, bool $decorated, OutputFormatterInterface $formatter) { parent::__construct($stream, $verbosity, $decorated, $formatter); array_unshift($sections, $this); $this->sections = &$sections; $this->terminal = new Terminal(); } /* * Clears previous output for this section. * * @param int $lines Number of lines to clear. If null, then the entire output of this section is cleared / public function clear(int $lines = null) { if (empty($this->content) \|\| !$this->isDecorated()) { return; } if ($lines) { array_splice($this->content, -($lines 2)); // Multiply lines by 2 to cater for each new line added between content } else { $lines = $this->lines; $this->content = []; } $this->lines -= $lines; parent::doWrite($this->popStreamContentUntilCurrentSection($lines), false); } /** * Overwrites the previous output with a new message. * * @param array\|string $message / public function overwrite($message) { $this->clear(); $this->writeln($message); } public function getContent(): string { return implode('', $this->content); } /* * @internal / public function addContent(string $input) { foreach (explode(\PHP_EOL, $input) as $lineContent) { $this->lines += ceil($this->getDisplayLength($lineContent) / $this->terminal->getWidth()) ?: 1; $this->content[] = $lineContent; $this->content[] = \PHP_EOL; } } /* * {@inheritdoc} / protected function doWrite($message, $newline) { if (!$this->isDecorated()) { parent::doWrite($message, $newline); return; } $erasedContent = $this->popStreamContentUntilCurrentSection(); $this->addContent($message); parent::doWrite($message, true); parent::doWrite($erasedContent, false); } /* * At initial stage, cursor is at the end of stream output. This method makes cursor crawl upwards until it hits * current section. Then it erases content it crawled through. Optionally, it erases part of current section too. */ private function popStreamContentUntilCurrentSection(int $numberOfLinesToClearFromCurrentSection = 0): string { $numberOfLinesToClear = $numberOfLinesToClearFromCurrentSection; $erasedContent = []; foreach ($this->sections as $section) { if ($section === $this) { break; } $numberOfLinesToClear += $section->lines; $erasedContent[] = $section->getContent(); } if ($numberOfLinesToClear > 0) { // move cursor up n lines parent::doWrite(sprintf("\x1b[%dA", $numberOfLinesToClear), false); // erase to end of screen parent::doWrite("\x1b[0J", false); } return implode('', array_reverse($erasedContent)); } private function getDisplayLength(string $text): string { return Helper::strlenWithoutDecoration($this->getFormatter(), str_replace("\t", ' ', $text)); } } Back

Edit File : ConsoleSectionOutput.php | Size : 4.07 KB

<?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\Output;

use Symfony\Component\Console\Formatter\OutputFormatterInterface;
use Symfony\Component\Console\Helper\Helper;
use Symfony\Component\Console\Terminal;

/**
 * @author Pierre du Plessis <pdples@gmail.com>
 * @author Gabriel Ostrolucký <gabriel.ostrolucky@gmail.com>
 */
class ConsoleSectionOutput extends StreamOutput
{
    private $content = [];
    private $lines = 0;
    private $sections;
    private $terminal;

/**
     * @param resource               $stream
     * @param ConsoleSectionOutput[] $sections
     */
    public function __construct($stream, array &$sections, int $verbosity, bool $decorated, OutputFormatterInterface $formatter)
    {
        parent::__construct($stream, $verbosity, $decorated, $formatter);
        array_unshift($sections, $this);
        $this->sections = &$sections;
        $this->terminal = new Terminal();
    }

/**
     * Clears previous output for this section.
     *
     * @param int $lines Number of lines to clear. If null, then the entire output of this section is cleared
     */
    public function clear(int $lines = null)
    {
        if (empty($this->content) || !$this->isDecorated()) {
            return;
        }

if ($lines) {
            array_splice($this->content, -($lines * 2)); // Multiply lines by 2 to cater for each new line added between content
        } else {
            $lines = $this->lines;
            $this->content = [];
        }

$this->lines -= $lines;

parent::doWrite($this->popStreamContentUntilCurrentSection($lines), false);
    }

/**
     * Overwrites the previous output with a new message.
     *
     * @param array|string $message
     */
    public function overwrite($message)
    {
        $this->clear();
        $this->writeln($message);
    }

public function getContent(): string
    {
        return implode('', $this->content);
    }

/**
     * @internal
     */
    public function addContent(string $input)
    {
        foreach (explode(\PHP_EOL, $input) as $lineContent) {
            $this->lines += ceil($this->getDisplayLength($lineContent) / $this->terminal->getWidth()) ?: 1;
            $this->content[] = $lineContent;
            $this->content[] = \PHP_EOL;
        }
    }

/**
     * {@inheritdoc}
     */
    protected function doWrite($message, $newline)
    {
        if (!$this->isDecorated()) {
            parent::doWrite($message, $newline);

return;
        }

$erasedContent = $this->popStreamContentUntilCurrentSection();

$this->addContent($message);

parent::doWrite($message, true);
        parent::doWrite($erasedContent, false);
    }

/**
     * At initial stage, cursor is at the end of stream output. This method makes cursor crawl upwards until it hits
     * current section. Then it erases content it crawled through. Optionally, it erases part of current section too.
     */
    private function popStreamContentUntilCurrentSection(int $numberOfLinesToClearFromCurrentSection = 0): string
    {
        $numberOfLinesToClear = $numberOfLinesToClearFromCurrentSection;
        $erasedContent = [];

foreach ($this->sections as $section) {
            if ($section === $this) {
                break;
            }

$numberOfLinesToClear += $section->lines;
            $erasedContent[] = $section->getContent();
        }

if ($numberOfLinesToClear > 0) {
            // move cursor up n lines
            parent::doWrite(sprintf("\x1b[%dA", $numberOfLinesToClear), false);
            // erase to end of screen
            parent::doWrite("\x1b[0J", false);
        }

return implode('', array_reverse($erasedContent));
    }

private function getDisplayLength(string $text): string
    {
        return Helper::strlenWithoutDecoration($this->getFormatter(), str_replace("\t", '        ', $text));
    }
}

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