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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Translation\Dumper;
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use Symfony\Component\Translation\MessageCatalogue;
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/**
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* PoFileDumper generates a gettext formatted string representation of a message catalogue.
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*
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* @author Stealth35
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*/
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class PoFileDumper extends FileDumper
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{
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public function formatCatalogue(MessageCatalogue $messages, string $domain, array $options = []): string
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{
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$output = 'msgid ""'."\n";
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$output .= 'msgstr ""'."\n";
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$output .= '"Content-Type: text/plain; charset=UTF-8\n"'."\n";
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$output .= '"Content-Transfer-Encoding: 8bit\n"'."\n";
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$output .= '"Language: '.$messages->getLocale().'\n"'."\n";
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$output .= "\n";
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$newLine = false;
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foreach ($messages->all($domain) as $source => $target) {
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if ($newLine) {
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$output .= "\n";
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} else {
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$newLine = true;
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}
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$metadata = $messages->getMetadata($source, $domain);
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if (isset($metadata['comments'])) {
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$output .= $this->formatComments($metadata['comments']);
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}
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if (isset($metadata['flags'])) {
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$output .= $this->formatComments(implode(',', (array) $metadata['flags']), ',');
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}
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if (isset($metadata['sources'])) {
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$output .= $this->formatComments(implode(' ', (array) $metadata['sources']), ':');
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}
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$sourceRules = $this->getStandardRules($source);
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$targetRules = $this->getStandardRules($target);
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if (2 == \count($sourceRules) && [] !== $targetRules) {
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$output .= sprintf('msgid "%s"'."\n", $this->escape($sourceRules[0]));
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$output .= sprintf('msgid_plural "%s"'."\n", $this->escape($sourceRules[1]));
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foreach ($targetRules as $i => $targetRule) {
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$output .= sprintf('msgstr[%d] "%s"'."\n", $i, $this->escape($targetRule));
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}
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} else {
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$output .= sprintf('msgid "%s"'."\n", $this->escape($source));
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$output .= sprintf('msgstr "%s"'."\n", $this->escape($target));
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}
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}
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return $output;
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}
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private function getStandardRules(string $id)
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{
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// Partly copied from TranslatorTrait::trans.
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$parts = [];
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if (preg_match('/^\|++$/', $id)) {
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$parts = explode('|', $id);
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} elseif (preg_match_all('/(?:\|\||[^\|])++/', $id, $matches)) {
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$parts = $matches[0];
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}
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$intervalRegexp = <<<'EOF'
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/^(?P<interval>
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({\s*
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(\-?\d+(\.\d+)?[\s*,\s*\-?\d+(\.\d+)?]*)
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\s*})
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(?P<left_delimiter>[\[\]])
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\s*
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(?P<left>-Inf|\-?\d+(\.\d+)?)
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\s*,\s*
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(?P<right>\+?Inf|\-?\d+(\.\d+)?)
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\s*
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(?P<right_delimiter>[\[\]])
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)\s*(?P<message>.*?)$/xs
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EOF;
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$standardRules = [];
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foreach ($parts as $part) {
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$part = trim(str_replace('||', '|', $part));
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if (preg_match($intervalRegexp, $part)) {
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// Explicit rule is not a standard rule.
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return [];
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} else {
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$standardRules[] = $part;
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}
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}
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return $standardRules;
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}
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protected function getExtension(): string
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{
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return 'po';
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}
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private function escape(string $str): string
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{
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return addcslashes($str, "\0..\37\42\134");
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}
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private function formatComments(string|array $comments, string $prefix = ''): ?string
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{
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$output = null;
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foreach ((array) $comments as $comment) {
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$output .= sprintf('#%s %s'."\n", $prefix, $comment);
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}
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return $output;
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}
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}
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