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<?php
namespace Gettext\Extractors;
use Gettext\Translations;
use Gettext\Translation;
use Gettext\Utils\HeadersExtractorTrait;
/**
* Class to get gettext strings from php files returning arrays.
*/
class Po extends Extractor implements ExtractorInterface
{
use HeadersExtractorTrait;
/**
* Parses a .po file and append the translations found in the Translations instance.
*
* {@inheritdoc}
*/
public static function fromString($string, Translations $translations, array $options = [])
{
$lines = explode("\n", $string);
$i = 0;
$translation = new Translation('', '');
for ($n = count($lines); $i < $n; ++$i) {
$line = trim($lines[$i]);
$line = self::fixMultiLines($line, $lines, $i);
if ($line === '') {
if ($translation->is('', '')) {
self::extractHeaders($translation->getTranslation(), $translations);
} elseif ($translation->hasOriginal()) {
$translations[] = $translation;
}
$translation = new Translation('', '');
continue;
}
$splitLine = preg_split('/\s+/', $line, 2);
$key = $splitLine[0];
$data = isset($splitLine[1]) ? $splitLine[1] : '';
switch ($key) {
case '#':
$translation->addComment($data);
$append = null;
break;
case '#.':
$translation->addExtractedComment($data);
$append = null;
break;
case '#,':
foreach (array_map('trim', explode(',', trim($data))) as $value) {
$translation->addFlag($value);
}
$append = null;
break;
case '#:':
foreach (preg_split('/\s+/', trim($data)) as $value) {
if (preg_match('/^(.+)(:(\d*))?$/U', $value, $matches)) {
$translation->addReference($matches[1], isset($matches[3]) ? $matches[3] : null);
}
}
$append = null;
break;
case 'msgctxt':
$translation = $translation->getClone(self::convertString($data));
$append = 'Context';
break;
case 'msgid':
$translation = $translation->getClone(null, self::convertString($data));
$append = 'Original';
break;
case 'msgid_plural':
$translation->setPlural(self::convertString($data));
$append = 'Plural';
break;
case 'msgstr':
case 'msgstr[0]':
$translation->setTranslation(self::convertString($data));
$append = 'Translation';
break;
case 'msgstr[1]':
$translation->setPluralTranslations([self::convertString($data)]);
$append = 'PluralTranslation';
break;
default:
if (strpos($key, 'msgstr[') === 0) {
$p = $translation->getPluralTranslations();
$p[] = self::convertString($data);
$translation->setPluralTranslations($p);
$append = 'PluralTranslation';
break;
}
if (isset($append)) {
if ($append === 'Context') {
$translation = $translation->getClone($translation->getContext()
."\n"
.self::convertString($data));
break;
}
if ($append === 'Original') {
$translation = $translation->getClone(null, $translation->getOriginal()
."\n"
.self::convertString($data));
break;
}
if ($append === 'PluralTranslation') {
$p = $translation->getPluralTranslations();
$p[] = array_pop($p)."\n".self::convertString($data);
$translation->setPluralTranslations($p);
break;
}
$getMethod = 'get'.$append;
$setMethod = 'set'.$append;
$translation->$setMethod($translation->$getMethod()."\n".self::convertString($data));
}
break;
}
}
if ($translation->hasOriginal() && !in_array($translation, iterator_to_array($translations))) {
$translations[] = $translation;
}
}
/**
* Gets one string from multiline strings.
*
* @param string $line
* @param array $lines
* @param int &$i
*
* @return string
*/
private static function fixMultiLines($line, array $lines, &$i)
{
for ($j = $i, $t = count($lines); $j < $t; ++$j) {
if (substr($line, -1, 1) == '"'
&& isset($lines[$j + 1])
&& substr(trim($lines[$j + 1]), 0, 1) == '"'
) {
$line = substr($line, 0, -1).substr(trim($lines[$j + 1]), 1);
} else {
$i = $j;
break;
}
}
return $line;
}
/**
* Convert a string from its PO representation.
*
* @param string $value
*
* @return string
*/
public static function convertString($value)
{
if (!$value) {
return '';
}
if ($value[0] === '"') {
$value = substr($value, 1, -1);
}
return strtr(
$value,
[
'\\\\' => '\\',
'\\a' => "\x07",
'\\b' => "\x08",
'\\t' => "\t",
'\\n' => "\n",
'\\v' => "\x0b",
'\\f' => "\x0c",
'\\r' => "\r",
'\\"' => '"',
]
);
}
}
|