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<?php
/**
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @author Henrik Bjornskov <hb@peytz.dk>
* @package Twig
* @subpackage Twig-extensions
*/
class Twig_Extensions_Extension_Text extends Twig_Extension
{
/**
* Returns a list of filters.
*
* @return array
*/
public function getFilters()
{
$filters = array(
'truncate' => new Twig_Filter_Function('twig_truncate_filter', array('needs_environment' => true)),
'wordwrap' => new Twig_Filter_Function('twig_wordwrap_filter', array('needs_environment' => true)),
);
if (version_compare(Twig_Environment::VERSION, '1.5.0-DEV', '<')) {
$filters['nl2br'] = new Twig_Filter_Function('twig_nl2br_filter', array('pre_escape' => 'html', 'is_safe' => array('html')));
}
return $filters;
}
/**
* Name of this extension
*
* @return string
*/
public function getName()
{
return 'Text';
}
}
function twig_nl2br_filter($value, $sep = '<br />')
{
return str_replace("\n", $sep."\n", $value);
}
if (function_exists('mb_get_info')) {
function twig_truncate_filter(Twig_Environment $env, $value, $length = 30, $preserve = false, $separator = '...')
{
if (mb_strlen($value, $env->getCharset()) > $length) {
if ($preserve) {
if (false !== ($breakpoint = mb_strpos($value, ' ', $length, $env->getCharset()))) {
$length = $breakpoint;
}
}
return rtrim(mb_substr($value, 0, $length, $env->getCharset())) . $separator;
}
return $value;
}
function twig_wordwrap_filter(Twig_Environment $env, $value, $length = 80, $separator = "\n", $preserve = false)
{
$sentences = array();
$previous = mb_regex_encoding();
mb_regex_encoding($env->getCharset());
$pieces = mb_split($separator, $value);
mb_regex_encoding($previous);
foreach ($pieces as $piece) {
while(!$preserve && mb_strlen($piece, $env->getCharset()) > $length) {
$sentences[] = mb_substr($piece, 0, $length, $env->getCharset());
$piece = mb_substr($piece, $length, 2048, $env->getCharset());
}
$sentences[] = $piece;
}
return implode($separator, $sentences);
}
} else {
function twig_truncate_filter(Twig_Environment $env, $value, $length = 30, $preserve = false, $separator = '...')
{
if (strlen($value) > $length) {
if ($preserve) {
if (false !== ($breakpoint = strpos($value, ' ', $length))) {
$length = $breakpoint;
}
}
return rtrim(substr($value, 0, $length)) . $separator;
}
return $value;
}
function twig_wordwrap_filter(Twig_Environment $env, $value, $length = 80, $separator = "\n", $preserve = false)
{
return wordwrap($value, $length, $separator, !$preserve);
}
}
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