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File: vendor/symfony/console/Terminal.php

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File: vendor/symfony/console/Terminal.php
Role: Class source
Content type: text/plain
Description: Class source
Class: PHP Pokemon Script
Provides an API to manage a database of Pokemons
Author: By
Last change:
Date: 2 years ago
Size: 4,004 bytes
 

 

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<?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;

class
Terminal
{
    private static
$width;
    private static
$height;

   
/**
     * Gets the terminal width.
     *
     * @return int
     */
   
public function getWidth()
    {
       
$width = getenv('COLUMNS');
        if (
false !== $width) {
            return (int)
trim($width);
        }

        if (
null === self::$width) {
           
self::initDimensions();
        }

        return
self::$width ?: 80;
    }

   
/**
     * Gets the terminal height.
     *
     * @return int
     */
   
public function getHeight()
    {
       
$height = getenv('LINES');
        if (
false !== $height) {
            return (int)
trim($height);
        }

        if (
null === self::$height) {
           
self::initDimensions();
        }

        return
self::$height ?: 50;
    }

    private static function
initDimensions()
    {
        if (
'\\' === DIRECTORY_SEPARATOR) {
            if (
preg_match('/^(\d+)x(\d+)(?: \((\d+)x(\d+)\))?$/', trim(getenv('ANSICON')), $matches)) {
               
// extract [w, H] from "wxh (WxH)"
                // or [w, h] from "wxh"
               
self::$width = (int) $matches[1];
               
self::$height = isset($matches[4]) ? (int) $matches[4] : (int) $matches[2];
            } elseif (
null !== $dimensions = self::getConsoleMode()) {
               
// extract [w, h] from "wxh"
               
self::$width = (int) $dimensions[0];
               
self::$height = (int) $dimensions[1];
            }
        } elseif (
$sttyString = self::getSttyColumns()) {
            if (
preg_match('/rows.(\d+);.columns.(\d+);/i', $sttyString, $matches)) {
               
// extract [w, h] from "rows h; columns w;"
               
self::$width = (int) $matches[2];
               
self::$height = (int) $matches[1];
            } elseif (
preg_match('/;.(\d+).rows;.(\d+).columns/i', $sttyString, $matches)) {
               
// extract [w, h] from "; h rows; w columns"
               
self::$width = (int) $matches[2];
               
self::$height = (int) $matches[1];
            }
        }
    }

   
/**
     * Runs and parses mode CON if it's available, suppressing any error output.
     *
     * @return int[]|null An array composed of the width and the height or null if it could not be parsed
     */
   
private static function getConsoleMode()
    {
        if (!
function_exists('proc_open')) {
            return;
        }

       
$descriptorspec = array(
           
1 => array('pipe', 'w'),
           
2 => array('pipe', 'w'),
        );
       
$process = proc_open('mode CON', $descriptorspec, $pipes, null, null, array('suppress_errors' => true));
        if (
is_resource($process)) {
           
$info = stream_get_contents($pipes[1]);
           
fclose($pipes[1]);
           
fclose($pipes[2]);
           
proc_close($process);

            if (
preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) {
                return array((int)
$matches[2], (int) $matches[1]);
            }
        }
    }

   
/**
     * Runs and parses stty -a if it's available, suppressing any error output.
     *
     * @return string|null
     */
   
private static function getSttyColumns()
    {
        if (!
function_exists('proc_open')) {
            return;
        }

       
$descriptorspec = array(
           
1 => array('pipe', 'w'),
           
2 => array('pipe', 'w'),
        );

       
$process = proc_open('stty -a | grep columns', $descriptorspec, $pipes, null, null, array('suppress_errors' => true));
        if (
is_resource($process)) {
           
$info = stream_get_contents($pipes[1]);
           
fclose($pipes[1]);
           
fclose($pipes[2]);
           
proc_close($process);

            return
$info;
        }
    }
}