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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Translate\Filter;
/**
*/
class UnnecassaryWhitespaces extends FilterAbstract
{
protected $baseTranslations = array();
/**
* Sets base translations
*
* @param array $baseTranslations
*/
public function __construct($baseTranslations = array())
{
$this->baseTranslations = $baseTranslations;
}
/**
* Removes all unnecassary whitespaces and newlines from the given translations
*
* @param array $translations
*
* @return array filtered translations
*/
public function filter($translations)
{
foreach ($translations as $pluginName => $pluginTranslations) {
foreach ($pluginTranslations as $key => $translation) {
$baseTranslation = '';
if (isset($this->baseTranslations[$pluginName][$key])) {
$baseTranslation = $this->baseTranslations[$pluginName][$key];
}
// remove excessive line breaks (and leading/trailing whitespace) from translations
$stringNoLineBreak = trim($translation);
$stringNoLineBreak = str_replace("\r", "", $stringNoLineBreak); # remove useless carrige renturns
$stringNoLineBreak = preg_replace('/(\n[ ]+)/', "\n", $stringNoLineBreak); # remove useless white spaces after line breaks
$stringNoLineBreak = preg_replace('/([\n]{2,})/', "\n\n", $stringNoLineBreak); # remove excessive line breaks
if (empty($baseTranslation) || !substr_count($baseTranslation, "\n")) {
$stringNoLineBreak = preg_replace("/[\n]+/", " ", $stringNoLineBreak); # remove all line breaks if english string doesn't contain any
}
$stringNoLineBreak = preg_replace('/([ ]{2,})/', " ", $stringNoLineBreak); # remove excessive white spaces again as there might be any now, after removing line breaks
if ($translation !== $stringNoLineBreak) {
$this->filteredData[$pluginName][$key] = $translation;
$translations[$pluginName][$key] = $stringNoLineBreak;
continue;
}
}
}
return $translations;
}
}
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