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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.
 */
 
 define('LINE_WIDTH', 75);
 
 define('LINE', str_repeat('-', LINE_WIDTH)."\n");
 
 function bailout($message)
 {
 echo wordwrap($message, LINE_WIDTH)." Aborting.\n";
 
 exit(1);
 }
 
 function strip_minor_versions($version)
 {
 preg_match('/^(?P<version>[0-9]\.[0-9]|[0-9]{2,})/', $version, $matches);
 
 return $matches['version'];
 }
 
 function centered($text)
 {
 $padding = (int) ((LINE_WIDTH - strlen($text)) / 2);
 
 return str_repeat(' ', $padding).$text;
 }
 
 function cd($dir)
 {
 if (false === chdir($dir)) {
 bailout("Could not switch to directory $dir.");
 }
 }
 
 function run($command)
 {
 exec($command, $output, $status);
 
 if (0 !== $status) {
 $output = implode("\n", $output);
 echo "Error while running:\n    ".getcwd().'$ '.$command."\nOutput:\n".LINE."$output\n".LINE;
 
 bailout("\"$command\" failed.");
 }
 }
 
 function get_icu_version_from_genrb($genrb)
 {
 exec($genrb.' --version 2>&1', $output, $status);
 
 if (0 !== $status) {
 bailout($genrb.' failed.');
 }
 
 if (!preg_match('/ICU version ([\d\.]+)/', implode('', $output), $matches)) {
 return;
 }
 
 return $matches[1];
 }
 
 set_exception_handler(function (\Exception $exception) {
 echo "\n";
 
 $cause = $exception;
 $root = true;
 
 while (null !== $cause) {
 if (!$root) {
 echo "Caused by\n";
 }
 
 echo get_class($cause).': '.$cause->getMessage()."\n";
 echo "\n";
 echo $cause->getFile().':'.$cause->getLine()."\n";
 foreach ($cause->getTrace() as $trace) {
 echo $trace['file'].':'.$trace['line']."\n";
 }
 echo "\n";
 
 $cause = $cause->getPrevious();
 $root = false;
 }
 });
 
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