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<?php |
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namespace Gettext\Generator; |
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use Gettext\Translations; |
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final class PoGenerator extends Generator |
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{ |
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public function generateString(Translations $translations): string |
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{ |
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$pluralForm = $translations->getHeaders()->getPluralForm(); |
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$pluralSize = is_array($pluralForm) ? ($pluralForm[0] - 1) : null; |
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//Headers |
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$lines = ['msgid ""', 'msgstr ""']; |
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foreach ($translations->getHeaders() as $name => $value) { |
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$lines[] = sprintf('"%s: %s\\n"', $name, $value); |
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} |
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$lines[] = ''; |
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//Translations |
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foreach ($translations as $translation) { |
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foreach ($translation->getComments() as $comment) { |
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$lines[] = sprintf('# %s', $comment); |
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} |
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foreach ($translation->getExtractedComments() as $comment) { |
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$lines[] = sprintf('#. %s', $comment); |
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} |
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foreach ($translation->getReferences() as $filename => $lineNumbers) { |
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if (empty($lineNumbers)) { |
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$lines[] = sprintf('#: %s', $filename); |
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continue; |
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} |
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foreach ($lineNumbers as $number) { |
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$lines[] = sprintf('#: %s:%d', $filename, $number); |
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} |
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} |
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if (count($translation->getFlags())) { |
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$lines[] = sprintf('#, %s', implode(',', $translation->getFlags()->toArray())); |
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} |
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$prefix = $translation->isDisabled() ? '#~ ' : ''; |
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if ($context = $translation->getContext()) { |
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$lines[] = sprintf('%smsgctxt %s', $prefix, self::encode($context)); |
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} |
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self::appendLines($lines, $prefix, 'msgid', $translation->getOriginal()); |
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if ($plural = $translation->getPlural()) { |
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self::appendLines($lines, $prefix, 'msgid_plural', $plural); |
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self::appendLines($lines, $prefix, 'msgstr[0]', $translation->getTranslation() ?: ''); |
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foreach ($translation->getPluralTranslations($pluralSize) as $k => $v) { |
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self::appendLines($lines, $prefix, sprintf('msgstr[%d]', $k + 1), $v); |
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} |
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} else { |
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self::appendLines($lines, $prefix, 'msgstr', $translation->getTranslation() ?: ''); |
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} |
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$lines[] = ''; |
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} |
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return implode("\n", $lines); |
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} |
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/** |
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* Add one or more lines depending whether the string is multiline or not. |
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*/ |
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private static function appendLines(array &$lines, string $prefix, string $name, string $value): void |
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{ |
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$newLines = explode("\n", $value); |
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$total = count($newLines); |
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if ($total === 1) { |
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$lines[] = sprintf('%s%s %s', $prefix, $name, self::encode($newLines[0])); |
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return; |
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} |
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$lines[] = sprintf('%s%s ""', $prefix, $name); |
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foreach ($newLines as $k => $line) { |
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if ($k === $total - 1) { |
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$line .= "\n"; |
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} |
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$lines[] = self::encode($line); |
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} |
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} |
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/** |
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* Convert a string to its PO representation. |
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*/ |
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public static function encode(string $value): string |
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{ |
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return '"'.strtr( |
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$value, |
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[ |
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"\x00" => '', |
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'\\' => '\\\\', |
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"\t" => '\t', |
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"\r" => '\r', |
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"\n" => '\n', |
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'"' => '\\"', |
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] |
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).'"'; |
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} |
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} |
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oscarotero /
Gettext
