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<?php |
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/** |
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* Class for working with PO files |
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* |
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* @version $Id: po.php 1158 2015-11-20 04:31:23Z dd32 $ |
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* @package pomo |
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* @subpackage po |
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*/ |
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require_once dirname(__FILE__) . '/translations.php'; |
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if ( ! defined( 'PO_MAX_LINE_LEN' ) ) { |
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define('PO_MAX_LINE_LEN', 79); |
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} |
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ini_set('auto_detect_line_endings', 1); |
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/** |
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* Routines for working with PO files |
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*/ |
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if ( ! class_exists( 'PO', false ) ): |
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class PO extends Gettext_Translations { |
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var $comments_before_headers = ''; |
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/** |
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* Exports headers to a PO entry |
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* |
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* @return string msgid/msgstr PO entry for this PO file headers, doesn't contain newline at the end |
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*/ |
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function export_headers() { |
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$header_string = ''; |
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foreach($this->headers as $header => $value) { |
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$header_string.= "$header: $value\n"; |
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} |
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$poified = PO::poify($header_string); |
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if ($this->comments_before_headers) |
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$before_headers = $this->prepend_each_line(rtrim($this->comments_before_headers)."\n", '# '); |
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else |
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$before_headers = ''; |
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return rtrim("{$before_headers}msgid \"\"\nmsgstr $poified"); |
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} |
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/** |
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* Exports all entries to PO format |
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* |
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* @return string sequence of mgsgid/msgstr PO strings, doesn't containt newline at the end |
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*/ |
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function export_entries() { |
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//TODO sorting |
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return implode("\n\n", array_map(array('PO', 'export_entry'), $this->entries)); |
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} |
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/** |
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* Exports the whole PO file as a string |
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* |
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* @param bool $include_headers whether to include the headers in the export |
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* @return string ready for inclusion in PO file string for headers and all the enrtries |
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*/ |
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function export($include_headers = true) { |
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$res = ''; |
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if ($include_headers) { |
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$res .= $this->export_headers(); |
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$res .= "\n\n"; |
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} |
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$res .= $this->export_entries(); |
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return $res; |
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} |
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/** |
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* Same as {@link export}, but writes the result to a file |
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* |
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* @param string $filename where to write the PO string |
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* @param bool $include_headers whether to include tje headers in the export |
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* @return bool true on success, false on error |
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*/ |
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function export_to_file($filename, $include_headers = true) { |
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$fh = fopen($filename, 'w'); |
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if (false === $fh) return false; |
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$export = $this->export($include_headers); |
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$res = fwrite($fh, $export); |
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if (false === $res) return false; |
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return fclose($fh); |
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} |
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/** |
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* Text to include as a comment before the start of the PO contents |
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* |
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* Doesn't need to include # in the beginning of lines, these are added automatically |
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*/ |
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function set_comment_before_headers( $text ) { |
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$this->comments_before_headers = $text; |
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} |
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/** |
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* Formats a string in PO-style |
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* |
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* @static |
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* @param string $string the string to format |
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* @return string the poified string |
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*/ |
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public static function poify($string) { |
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$quote = '"'; |
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$slash = '\\'; |
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$newline = "\n"; |
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$replaces = array( |
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"$slash" => "$slash$slash", |
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"$quote" => "$slash$quote", |
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"\t" => '\t', |
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); |
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$string = str_replace(array_keys($replaces), array_values($replaces), $string); |
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$po = $quote.implode("${slash}n$quote$newline$quote", explode($newline, $string)).$quote; |
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// add empty string on first line for readbility |
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if (false !== strpos($string, $newline) && |
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(substr_count($string, $newline) > 1 || !($newline === substr($string, -strlen($newline))))) { |
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$po = "$quote$quote$newline$po"; |
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} |
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// remove empty strings |
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$po = str_replace("$newline$quote$quote", '', $po); |
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return $po; |
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} |
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/** |
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* Gives back the original string from a PO-formatted string |
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* |
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* @static |
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* @param string $string PO-formatted string |
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* @return string enascaped string |
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*/ |
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public static function unpoify($string) { |
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$escapes = array('t' => "\t", 'n' => "\n", 'r' => "\r", '\\' => '\\'); |
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$lines = array_map('trim', explode("\n", $string)); |
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$lines = array_map(array('PO', 'trim_quotes'), $lines); |
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$unpoified = ''; |
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$previous_is_backslash = false; |
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foreach($lines as $line) { |
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preg_match_all('/./u', $line, $chars); |
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$chars = $chars[0]; |
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foreach($chars as $char) { |
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if (!$previous_is_backslash) { |
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if ('\\' == $char) |
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$previous_is_backslash = true; |
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else |
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$unpoified .= $char; |
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} else { |
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$previous_is_backslash = false; |
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$unpoified .= isset($escapes[$char])? $escapes[$char] : $char; |
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} |
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} |
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} |
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// Standardise the line endings on imported content, technically PO files shouldn't contain \r |
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$unpoified = str_replace( array( "\r\n", "\r" ), "\n", $unpoified ); |
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return $unpoified; |
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} |
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/** |
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* Inserts $with in the beginning of every new line of $string and |
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* returns the modified string |
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* |
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* @static |
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* @param string $string prepend lines in this string |
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* @param string $with prepend lines with this string |
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*/ |
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public static function prepend_each_line($string, $with) { |
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$php_with = var_export($with, true); |
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$lines = explode("\n", $string); |
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// do not prepend the string on the last empty line, artefact by explode |
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if ("\n" == substr($string, -1)) unset($lines[count($lines) - 1]); |
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$res = implode("\n", array_map(create_function('$x', "return $php_with.\$x;"), $lines)); |
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// give back the empty line, we ignored above |
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if ("\n" == substr($string, -1)) $res .= "\n"; |
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return $res; |
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} |
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/** |
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* Prepare a text as a comment -- wraps the lines and prepends # |
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* and a special character to each line |
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* |
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* @access private |
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* @param string $text the comment text |
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* @param string $char character to denote a special PO comment, |
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* like :, default is a space |
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*/ |
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public static function comment_block($text, $char=' ') { |
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$text = wordwrap($text, PO_MAX_LINE_LEN - 3); |
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return PO::prepend_each_line($text, "#$char "); |
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} |
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/** |
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* Builds a string from the entry for inclusion in PO file |
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* |
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* @static |
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* @param Translation_Entry &$entry the entry to convert to po string |
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* @return false|string PO-style formatted string for the entry or |
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* false if the entry is empty |
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*/ |
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public static function export_entry(&$entry) { |
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if ( null === $entry->singular || '' === $entry->singular ) return false; |
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$po = array(); |
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if (!empty($entry->translator_comments)) $po[] = PO::comment_block($entry->translator_comments); |
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if (!empty($entry->extracted_comments)) $po[] = PO::comment_block($entry->extracted_comments, '.'); |
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View Code Duplication |
if (!empty($entry->references)) $po[] = PO::comment_block(implode(' ', $entry->references), ':'); |
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View Code Duplication |
if (!empty($entry->flags)) $po[] = PO::comment_block(implode(", ", $entry->flags), ','); |
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if ($entry->context) $po[] = 'msgctxt '.PO::poify($entry->context); |
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$po[] = 'msgid '.PO::poify($entry->singular); |
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if (!$entry->is_plural) { |
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$translation = empty($entry->translations)? '' : $entry->translations[0]; |
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$translation = PO::match_begin_and_end_newlines( $translation, $entry->singular ); |
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$po[] = 'msgstr '.PO::poify($translation); |
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} else { |
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$po[] = 'msgid_plural '.PO::poify($entry->plural); |
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$translations = empty($entry->translations)? array('', '') : $entry->translations; |
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foreach($translations as $i => $translation) { |
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$translation = PO::match_begin_and_end_newlines( $translation, $entry->plural ); |
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$po[] = "msgstr[$i] ".PO::poify($translation); |
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} |
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} |
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return implode("\n", $po); |
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} |
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public static function match_begin_and_end_newlines( $translation, $original ) { |
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if ( '' === $translation ) { |
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return $translation; |
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} |
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$original_begin = "\n" === substr( $original, 0, 1 ); |
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$original_end = "\n" === substr( $original, -1 ); |
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$translation_begin = "\n" === substr( $translation, 0, 1 ); |
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$translation_end = "\n" === substr( $translation, -1 ); |
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if ( $original_begin ) { |
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if ( ! $translation_begin ) { |
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$translation = "\n" . $translation; |
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} |
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} elseif ( $translation_begin ) { |
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$translation = ltrim( $translation, "\n" ); |
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} |
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if ( $original_end ) { |
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if ( ! $translation_end ) { |
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$translation .= "\n"; |
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} |
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} elseif ( $translation_end ) { |
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$translation = rtrim( $translation, "\n" ); |
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} |
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return $translation; |
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} |
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/** |
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256
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* @param string $filename |
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* @return boolean |
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*/ |
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function import_from_file($filename) { |
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$f = fopen($filename, 'r'); |
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if (!$f) return false; |
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$lineno = 0; |
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while (true) { |
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$res = $this->read_entry($f, $lineno); |
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if (!$res) break; |
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if ($res['entry']->singular == '') { |
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$this->set_headers($this->make_headers($res['entry']->translations[0])); |
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} else { |
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$this->add_entry($res['entry']); |
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} |
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} |
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PO::read_line($f, 'clear'); |
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if ( false === $res ) { |
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return false; |
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} |
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if ( ! $this->headers && ! $this->entries ) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* @param resource $f |
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* @param int $lineno |
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* @return null|false|array |
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*/ |
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287
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function read_entry($f, $lineno = 0) { |
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$entry = new Translation_Entry(); |
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// where were we in the last step |
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// can be: comment, msgctxt, msgid, msgid_plural, msgstr, msgstr_plural |
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$context = ''; |
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$msgstr_index = 0; |
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$is_final = create_function('$context', 'return $context == "msgstr" || $context == "msgstr_plural";'); |
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while (true) { |
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$lineno++; |
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$line = PO::read_line($f); |
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if (!$line) { |
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if (feof($f)) { |
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if ($is_final($context)) |
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break; |
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elseif (!$context) // we haven't read a line and eof came |
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return null; |
|
303
|
|
|
else |
|
304
|
|
|
return false; |
|
305
|
|
|
} else { |
|
306
|
|
|
return false; |
|
307
|
|
|
} |
|
308
|
|
|
} |
|
309
|
|
|
if ($line == "\n") continue; |
|
310
|
|
|
$line = trim($line); |
|
311
|
|
|
if (preg_match('/^#/', $line, $m)) { |
|
312
|
|
|
// the comment is the start of a new entry |
|
313
|
|
|
if ($is_final($context)) { |
|
314
|
|
|
PO::read_line($f, 'put-back'); |
|
315
|
|
|
$lineno--; |
|
316
|
|
|
break; |
|
317
|
|
|
} |
|
318
|
|
|
// comments have to be at the beginning |
|
319
|
|
|
if ($context && $context != 'comment') { |
|
320
|
|
|
return false; |
|
321
|
|
|
} |
|
322
|
|
|
// add comment |
|
323
|
|
|
$this->add_comment_to_entry($entry, $line); |
|
324
|
|
|
} elseif (preg_match('/^msgctxt\s+(".*")/', $line, $m)) { |
|
325
|
|
|
if ($is_final($context)) { |
|
326
|
|
|
PO::read_line($f, 'put-back'); |
|
327
|
|
|
$lineno--; |
|
328
|
|
|
break; |
|
329
|
|
|
} |
|
330
|
|
|
if ($context && $context != 'comment') { |
|
331
|
|
|
return false; |
|
332
|
|
|
} |
|
333
|
|
|
$context = 'msgctxt'; |
|
334
|
|
|
$entry->context .= PO::unpoify($m[1]); |
|
|
|
|
|
|
335
|
|
|
} elseif (preg_match('/^msgid\s+(".*")/', $line, $m)) { |
|
336
|
|
|
if ($is_final($context)) { |
|
337
|
|
|
PO::read_line($f, 'put-back'); |
|
338
|
|
|
$lineno--; |
|
339
|
|
|
break; |
|
340
|
|
|
} |
|
341
|
|
|
if ($context && $context != 'msgctxt' && $context != 'comment') { |
|
342
|
|
|
return false; |
|
343
|
|
|
} |
|
344
|
|
|
$context = 'msgid'; |
|
345
|
|
|
$entry->singular .= PO::unpoify($m[1]); |
|
|
|
|
|
|
346
|
|
|
} elseif (preg_match('/^msgid_plural\s+(".*")/', $line, $m)) { |
|
347
|
|
|
if ($context != 'msgid') { |
|
348
|
|
|
return false; |
|
349
|
|
|
} |
|
350
|
|
|
$context = 'msgid_plural'; |
|
351
|
|
|
$entry->is_plural = true; |
|
|
|
|
|
|
352
|
|
|
$entry->plural .= PO::unpoify($m[1]); |
|
|
|
|
|
|
353
|
|
|
} elseif (preg_match('/^msgstr\s+(".*")/', $line, $m)) { |
|
354
|
|
|
if ($context != 'msgid') { |
|
355
|
|
|
return false; |
|
356
|
|
|
} |
|
357
|
|
|
$context = 'msgstr'; |
|
358
|
|
|
$entry->translations = array(PO::unpoify($m[1])); |
|
|
|
|
|
|
359
|
|
|
} elseif (preg_match('/^msgstr\[(\d+)\]\s+(".*")/', $line, $m)) { |
|
360
|
|
|
if ($context != 'msgid_plural' && $context != 'msgstr_plural') { |
|
361
|
|
|
return false; |
|
362
|
|
|
} |
|
363
|
|
|
$context = 'msgstr_plural'; |
|
364
|
|
|
$msgstr_index = $m[1]; |
|
365
|
|
|
$entry->translations[$m[1]] = PO::unpoify($m[2]); |
|
|
|
|
|
|
366
|
|
|
} elseif (preg_match('/^".*"$/', $line)) { |
|
367
|
|
|
$unpoified = PO::unpoify($line); |
|
368
|
|
|
switch ($context) { |
|
369
|
|
|
case 'msgid': |
|
370
|
|
|
$entry->singular .= $unpoified; break; |
|
|
|
|
|
|
371
|
|
|
case 'msgctxt': |
|
372
|
|
|
$entry->context .= $unpoified; break; |
|
|
|
|
|
|
373
|
|
|
case 'msgid_plural': |
|
374
|
|
|
$entry->plural .= $unpoified; break; |
|
|
|
|
|
|
375
|
|
|
case 'msgstr': |
|
376
|
|
|
$entry->translations[0] .= $unpoified; break; |
|
|
|
|
|
|
377
|
|
|
case 'msgstr_plural': |
|
378
|
|
|
$entry->translations[$msgstr_index] .= $unpoified; break; |
|
|
|
|
|
|
379
|
|
|
default: |
|
380
|
|
|
return false; |
|
381
|
|
|
} |
|
382
|
|
|
} else { |
|
383
|
|
|
return false; |
|
384
|
|
|
} |
|
385
|
|
|
} |
|
386
|
|
|
if (array() == array_filter($entry->translations, create_function('$t', 'return $t || "0" === $t;'))) { |
|
|
|
|
|
|
387
|
|
|
$entry->translations = array(); |
|
|
|
|
|
|
388
|
|
|
} |
|
389
|
|
|
return array('entry' => $entry, 'lineno' => $lineno); |
|
390
|
|
|
} |
|
391
|
|
|
|
|
392
|
|
|
/** |
|
393
|
|
|
* @staticvar string $last_line |
|
394
|
|
|
* @staticvar boolean $use_last_line |
|
395
|
|
|
* |
|
396
|
|
|
* @param resource $f |
|
397
|
|
|
* @param string $action |
|
398
|
|
|
* @return boolean |
|
399
|
|
|
*/ |
|
400
|
|
|
function read_line($f, $action = 'read') { |
|
401
|
|
|
static $last_line = ''; |
|
402
|
|
|
static $use_last_line = false; |
|
403
|
|
|
if ('clear' == $action) { |
|
404
|
|
|
$last_line = ''; |
|
405
|
|
|
return true; |
|
406
|
|
|
} |
|
407
|
|
|
if ('put-back' == $action) { |
|
408
|
|
|
$use_last_line = true; |
|
409
|
|
|
return true; |
|
410
|
|
|
} |
|
411
|
|
|
$line = $use_last_line? $last_line : fgets($f); |
|
412
|
|
|
$line = ( "\r\n" == substr( $line, -2 ) ) ? rtrim( $line, "\r\n" ) . "\n" : $line; |
|
413
|
|
|
$last_line = $line; |
|
414
|
|
|
$use_last_line = false; |
|
415
|
|
|
return $line; |
|
416
|
|
|
} |
|
417
|
|
|
|
|
418
|
|
|
/** |
|
419
|
|
|
* @param Translation_Entry $entry |
|
420
|
|
|
* @param string $po_comment_line |
|
421
|
|
|
*/ |
|
422
|
|
|
function add_comment_to_entry(&$entry, $po_comment_line) { |
|
423
|
|
|
$first_two = substr($po_comment_line, 0, 2); |
|
424
|
|
|
$comment = trim(substr($po_comment_line, 2)); |
|
425
|
|
|
if ('#:' == $first_two) { |
|
426
|
|
|
$entry->references = array_merge($entry->references, preg_split('/\s+/', $comment)); |
|
|
|
|
|
|
427
|
|
|
} elseif ('#.' == $first_two) { |
|
428
|
|
|
$entry->extracted_comments = trim($entry->extracted_comments . "\n" . $comment); |
|
|
|
|
|
|
429
|
|
|
} elseif ('#,' == $first_two) { |
|
430
|
|
|
$entry->flags = array_merge($entry->flags, preg_split('/,\s*/', $comment)); |
|
|
|
|
|
|
431
|
|
|
} else { |
|
432
|
|
|
$entry->translator_comments = trim($entry->translator_comments . "\n" . $comment); |
|
|
|
|
|
|
433
|
|
|
} |
|
434
|
|
|
} |
|
435
|
|
|
|
|
436
|
|
|
/** |
|
437
|
|
|
* @param string $s |
|
438
|
|
|
* @return sring |
|
439
|
|
|
*/ |
|
440
|
|
|
public static function trim_quotes($s) { |
|
441
|
|
|
if ( substr($s, 0, 1) == '"') $s = substr($s, 1); |
|
442
|
|
|
if ( substr($s, -1, 1) == '"') $s = substr($s, 0, -1); |
|
443
|
|
|
return $s; |
|
444
|
|
|
} |
|
445
|
|
|
} |
|
446
|
|
|
endif; |
|
447
|
|
|
|
ntwb /
wordpress
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