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<?php
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @since 3.1.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Shell\Helper;
use Cake\Console\Helper;
/**
* Create a visually pleasing ASCII art table
* from 2 dimensional array data.
*/
class TableHelper extends Helper
{
/**
* Default config for this helper.
*
* @var array
*/
protected $_defaultConfig = [
'headers' => true,
'rowSeparator' => false,
'headerStyle' => 'info',
];
/**
* Calculate the column widths
*
* @param array $rows The rows on which the columns width will be calculated on.
* @return array
*/
protected function _calculateWidths($rows)
{
$widths = [];
foreach ($rows as $line) {
foreach (array_values($line) as $k => $v) {
$columnLength = mb_strwidth($v);
if ($columnLength >= (isset($widths[$k]) ? $widths[$k] : 0)) {
$widths[$k] = $columnLength;
}
}
}
return $widths;
}
/**
* Output a row separator.
*
* @param array $widths The widths of each column to output.
* @return void
*/
protected function _rowSeparator($widths)
{
$out = '';
foreach ($widths as $column) {
$out .= '+' . str_repeat('-', $column + 2);
}
$out .= '+';
$this->_io->out($out);
}
/**
* Output a row.
*
* @param array $row The row to output.
* @param array $widths The widths of each column to output.
* @param array $options Options to be passed.
* @return void
*/
protected function _render(array $row, $widths, $options = [])
{
if (count($row) === 0) {
return;
}
$out = '';
foreach (array_values($row) as $i => $column) {
$pad = $widths[$i] - mb_strwidth($column);
if (!empty($options['style'])) {
$column = $this->_addStyle($column, $options['style']);
}
$out .= '| ' . $column . str_repeat(' ', $pad) . ' ';
}
$out .= '|';
$this->_io->out($out);
}
/**
* Output a table.
*
* Data will be output based on the order of the values
* in the array. The keys will not be used to align data.
*
* @param array $rows The data to render out.
* @return void
*/
public function output($rows)
{
if (!is_array($rows) || count($rows) === 0) {
return;
}
$config = $this->getConfig();
$widths = $this->_calculateWidths($rows);
$this->_rowSeparator($widths);
if ($config['headers'] === true) {
$this->_render(array_shift($rows), $widths, ['style' => $config['headerStyle']]);
$this->_rowSeparator($widths);
}
if (!$rows) {
return;
}
foreach ($rows as $line) {
$this->_render($line, $widths);
if ($config['rowSeparator'] === true) {
$this->_rowSeparator($widths);
}
}
if ($config['rowSeparator'] !== true) {
$this->_rowSeparator($widths);
}
}
/**
* Add style tags
*
* @param string $text The text to be surrounded
* @param string $style The style to be applied
* @return string
*/
protected function _addStyle($text, $style)
{
return '<' . $style . '>' . $text . '</' . $style . '>';
}
}