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<?php |
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namespace Geekwright\Po; |
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/** |
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* PoInitPHP provides 'msginit' like logic which can take a source PHP file, |
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* recognize gettext like function tokens, and capture the translatable strings |
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* in a PoFile object. |
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* |
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* @category Extractors |
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* @package Po |
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* @author Richard Griffith <[email protected]> |
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* @copyright 2015-2018 Richard Griffith |
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* @license GNU GPL 2 or later (http://www.gnu.org/licenses/gpl-2.0.html) |
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* @link https://github.com/geekwright/Po |
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*/ |
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class PoInitPHP extends PoInitAbstract |
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{ |
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/** |
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* @var string[] $gettextTags tags for gettext constructs, i.e. tag($msgid) |
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*/ |
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protected $gettextTags = array('gettext', 'gettext_noop', '_'); |
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/** |
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* @var string[] $pgettextTags tags for pgettext constructs, i.e. tag($msgctxt, $msgid) |
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*/ |
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protected $pgettextTags = array('pgettext'); |
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/** |
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* @var string[] $ngettextTags tags for ngettext constructs, i.e. tag($msgid, $msgid_plural) |
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*/ |
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protected $ngettextTags = array('ngettext'); |
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/** |
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* Establish the PoFile to use in the Init process |
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* |
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* @param PoFile|null $poFile a PoFile object to be used in msginit |
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*/ |
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public function __construct(?PoFile $poFile = null) |
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{ |
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$this->poFile = $poFile; |
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} |
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/** |
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* Inspect the supplied source, capture gettext references as a PoFile object. |
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* |
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* @param string $source php source code |
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* @param string $refname source identification used for PO reference comments |
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* |
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* @return PoFile |
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*/ |
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public function msginitString(string $source, string $refname): PoFile |
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{ |
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if (!($this->poFile instanceof PoFile)) { |
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$this->poFile = new PoFile; |
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} |
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$tokens = token_get_all($source); |
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$translateTags = array_merge($this->gettextTags, $this->pgettextTags, $this->ngettextTags); |
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$commentText=null; |
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$commentLine=(-10); |
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$tokenCount = count($tokens); |
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$i = 0; |
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while ($i<$tokenCount) { |
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$token = $tokens[$i]; |
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if (is_array($token) && $token[0] == T_STRING && in_array($token[1], $translateTags)) { |
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$entry = new PoEntry; |
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$gtt = array(); |
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list(, $text, $line) = $token; |
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$entry->add(PoTokens::REFERENCE, $refname . ':' . $line); |
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$gtt['line']=$line; |
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$gtt['function']=$text; |
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$gtt['args'] = array(); |
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$la = 1; |
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while (is_array($tokens[$i + $la]) && $tokens[$i + $la][0] == T_WHITESPACE) { |
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$la++; |
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} |
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if ($tokens[$i + $la] == '(') { |
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while ((')' != $token=$tokens[$i + $la]) && ($la < 10)) { |
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if (is_array($token) && ( |
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$token[0] == T_CONSTANT_ENCAPSED_STRING |
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|| $token[0] == T_ENCAPSED_AND_WHITESPACE |
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)) { |
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list(, $text, $line) = $token; |
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$gtt['args'][]=$text; |
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} |
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$la++; |
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} |
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if (count($gtt['args'])) { |
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if (in_array($gtt['function'], $this->gettextTags)) { |
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$entry->set(PoTokens::MESSAGE, $this->escapeForPo($gtt['args'][0])); |
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} elseif (count($gtt['args'])>1 && in_array($gtt['function'], $this->pgettextTags)) { |
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$entry->set(PoTokens::CONTEXT, $this->escapeForPo($gtt['args'][0])); |
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$entry->set(PoTokens::MESSAGE, $this->escapeForPo($gtt['args'][1])); |
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} elseif (count($gtt['args'])>1 && in_array($gtt['function'], $this->ngettextTags)) { |
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$entry->set(PoTokens::MESSAGE, $this->escapeForPo($gtt['args'][0])); |
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$entry->set(PoTokens::PLURAL, $this->escapeForPo($gtt['args'][1])); |
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} |
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$this->checkPhpFormatFlag($entry); |
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if ($gtt['line']==($commentLine+1)) { |
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$entry->set(PoTokens::EXTRACTED_COMMENTS, $this->stripComment($commentText)); |
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} |
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$this->poFile->mergeEntry($entry); |
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} |
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} |
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} elseif (is_array($token) && $token[0] == T_COMMENT) { |
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list(, $commentText, $commentLine) = $token; |
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} |
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$i++; |
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} |
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return $this->poFile; |
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} |
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/** |
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* Remove comment tags from string |
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* |
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* @param string $string raw comment string |
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* |
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* @return string |
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*/ |
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protected function stripComment(string $string): string |
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{ |
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return trim(str_replace(array('//', '/*', '*/'), '', $string)); |
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} |
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} |
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geekwright /
Po
