Gettext_Translations
Description Description
Source Source
File: wp-includes/pomo/translations.php
class Gettext_Translations extends Translations { /** * The gettext implementation of select_plural_form. * * It lives in this class, because there are more than one descendand, which will use it and * they can't share it effectively. * * @param int $count */ function gettext_select_plural_form( $count ) { if ( ! isset( $this->_gettext_select_plural_form ) || is_null( $this->_gettext_select_plural_form ) ) { list( $nplurals, $expression ) = $this->nplurals_and_expression_from_header( $this->get_header( 'Plural-Forms' ) ); $this->_nplurals = $nplurals; $this->_gettext_select_plural_form = $this->make_plural_form_function( $nplurals, $expression ); } return call_user_func( $this->_gettext_select_plural_form, $count ); } /** * @param string $header * @return array */ function nplurals_and_expression_from_header( $header ) { if ( preg_match( '/^\s*nplurals\s*=\s*(\d+)\s*;\s+plural\s*=\s*(.+)$/', $header, $matches ) ) { $nplurals = (int) $matches[1]; $expression = trim( $matches[2] ); return array( $nplurals, $expression ); } else { return array( 2, 'n != 1' ); } } /** * Makes a function, which will return the right translation index, according to the * plural forms header * * @param int $nplurals * @param string $expression */ function make_plural_form_function( $nplurals, $expression ) { try { $handler = new Plural_Forms( rtrim( $expression, ';' ) ); return array( $handler, 'get' ); } catch ( Exception $e ) { // Fall back to default plural-form function. return $this->make_plural_form_function( 2, 'n != 1' ); } } /** * Adds parentheses to the inner parts of ternary operators in * plural expressions, because PHP evaluates ternary oerators from left to right * * @param string $expression the expression without parentheses * @return string the expression with parentheses added */ function parenthesize_plural_exression( $expression ) { $expression .= ';'; $res = ''; $depth = 0; for ( $i = 0; $i < strlen( $expression ); ++$i ) { $char = $expression[ $i ]; switch ( $char ) { case '?': $res .= ' ? ('; $depth++; break; case ':': $res .= ') : ('; break; case ';': $res .= str_repeat( ')', $depth ) . ';'; $depth = 0; break; default: $res .= $char; } } return rtrim( $res, ';' ); } /** * @param string $translation * @return array */ function make_headers( $translation ) { $headers = array(); // sometimes \ns are used instead of real new lines $translation = str_replace( '\n', "\n", $translation ); $lines = explode( "\n", $translation ); foreach ( $lines as $line ) { $parts = explode( ':', $line, 2 ); if ( ! isset( $parts[1] ) ) { continue; } $headers[ trim( $parts[0] ) ] = trim( $parts[1] ); } return $headers; } /** * @param string $header * @param string $value */ function set_header( $header, $value ) { parent::set_header( $header, $value ); if ( 'Plural-Forms' == $header ) { list( $nplurals, $expression ) = $this->nplurals_and_expression_from_header( $this->get_header( 'Plural-Forms' ) ); $this->_nplurals = $nplurals; $this->_gettext_select_plural_form = $this->make_plural_form_function( $nplurals, $expression ); } } }
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Methods Methods
- gettext_select_plural_form — The gettext implementation of select_plural_form.
- make_headers
- make_plural_form_function — Makes a function, which will return the right translation index, according to the plural forms header
- nplurals_and_expression_from_header
- parenthesize_plural_exression — Adds parentheses to the inner parts of ternary operators in plural expressions, because PHP evaluates ternary oerators from left to right
- set_header