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<?php
 /*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
 namespace Symfony\Component\Console\Helper;
 
 use Symfony\Component\Console\Formatter\OutputFormatter;
 
 /**
 * The Formatter class provides helpers to format messages.
 *
 * @author Fabien Potencier <[email protected]>
 */
 class FormatterHelper extends Helper
 {
 /**
 * Formats a message within a section.
 *
 * @param string $section The section name
 * @param string $message The message
 * @param string $style   The style to apply to the section
 *
 * @return string The format section
 */
 public function formatSection($section, $message, $style = 'info')
 {
 return sprintf('<%s>[%s]</%s> %s', $style, $section, $style, $message);
 }
 
 /**
 * Formats a message as a block of text.
 *
 * @param string|array $messages The message to write in the block
 * @param string       $style    The style to apply to the whole block
 * @param bool         $large    Whether to return a large block
 *
 * @return string The formatter message
 */
 public function formatBlock($messages, $style, $large = false)
 {
 if (!is_array($messages)) {
 $messages = array($messages);
 }
 
 $len = 0;
 $lines = array();
 foreach ($messages as $message) {
 $message = OutputFormatter::escape($message);
 $lines[] = sprintf($large ? '  %s  ' : ' %s ', $message);
 $len = max($this->strlen($message) + ($large ? 4 : 2), $len);
 }
 
 $messages = $large ? array(str_repeat(' ', $len)) : array();
 for ($i = 0; isset($lines[$i]); ++$i) {
 $messages[] = $lines[$i].str_repeat(' ', $len - $this->strlen($lines[$i]));
 }
 if ($large) {
 $messages[] = str_repeat(' ', $len);
 }
 
 for ($i = 0; isset($messages[$i]); ++$i) {
 $messages[$i] = sprintf('<%s>%s</%s>', $style, $messages[$i], $style);
 }
 
 return implode("\n", $messages);
 }
 
 /**
 * Truncates a message to the given length.
 *
 * @param string $message
 * @param int    $length
 * @param string $suffix
 *
 * @return string
 */
 public function truncate($message, $length, $suffix = '...')
 {
 $computedLength = $length - $this->strlen($suffix);
 
 if ($computedLength > $this->strlen($message)) {
 return $message;
 }
 
 if (false === $encoding = mb_detect_encoding($message, null, true)) {
 return substr($message, 0, $length).$suffix;
 }
 
 return mb_substr($message, 0, $length, $encoding).$suffix;
 }
 
 /**
 * {@inheritdoc}
 */
 public function getName()
 {
 return 'formatter';
 }
 }
 
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