<?php
/*
* This file is part of the Environment package.
*
* (c) Sebastian Bergmann <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\Environment;
/**
*/
class Console
{
const STDIN = 0;
const STDOUT = 1;
const STDERR = 2;
/**
* Returns true if STDOUT supports colorization.
*
* This code has been copied and adapted from
* Symfony\Component\Console\Output\OutputStream.
*
* @return bool
*/
public function hasColorSupport()
{
if (DIRECTORY_SEPARATOR == '\\') {
return false !== getenv('ANSICON') || 'ON' === getenv('ConEmuANSI') || 'xterm' === getenv('TERM');
}
if (!defined('STDOUT')) {
return false;
}
return $this->isInteractive(STDOUT);
}
/**
* Returns the number of columns of the terminal.
*
* @return int
*/
public function getNumberOfColumns()
{
if (DIRECTORY_SEPARATOR == '\\') {
$columns = 80;
if (preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', trim(getenv('ANSICON')), $matches)) {
$columns = $matches[1];
} elseif (function_exists('proc_open')) {
$process = proc_open(
'mode CON',
[
1 => ['pipe', 'w'],
2 => ['pipe', 'w']
],
$pipes,
null,
null,
['suppress_errors' => true]
);
if (is_resource($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)) {
$columns = $matches[2];
}
}
}
return $columns - 1;
}
if (!$this->isInteractive(self::STDIN)) {
return 80;
}
if (function_exists('shell_exec') && preg_match('#\d+ (\d+)#', shell_exec('stty size'), $match) === 1) {
if ((int) $match[1] > 0) {
return (int) $match[1];
}
}
if (function_exists('shell_exec') && preg_match('#columns = (\d+);#', shell_exec('stty'), $match) === 1) {
if ((int) $match[1] > 0) {
return (int) $match[1];
}
}
return 80;
}
/**
* Returns if the file descriptor is an interactive terminal or not.
*
* @param int|resource $fileDescriptor
*
* @return bool
*/
public function isInteractive($fileDescriptor = self::STDOUT)
{
return function_exists('posix_isatty') && @posix_isatty($fileDescriptor);
}
}
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