/htdocs/wp-includes/pomo/translations.php
https://gitlab.com/VTTE/sitios-vtte · PHP · 379 lines · 204 code · 31 blank · 144 comment · 28 complexity · 057c94389f5661f1b3b0ac79a2ecb2fd MD5 · raw file
- <?php
- /**
- * Class for a set of entries for translation and their associated headers
- *
- * @version $Id: translations.php 1157 2015-11-20 04:30:11Z dd32 $
- * @package pomo
- * @subpackage translations
- */
- require_once __DIR__ . '/plural-forms.php';
- require_once __DIR__ . '/entry.php';
- if ( ! class_exists( 'Translations', false ) ) :
- class Translations {
- var $entries = array();
- var $headers = array();
- /**
- * Add entry to the PO structure
- *
- * @param array|Translation_Entry $entry
- * @return bool true on success, false if the entry doesn't have a key
- */
- function add_entry( $entry ) {
- if ( is_array( $entry ) ) {
- $entry = new Translation_Entry( $entry );
- }
- $key = $entry->key();
- if ( false === $key ) {
- return false;
- }
- $this->entries[ $key ] = &$entry;
- return true;
- }
- /**
- * @param array|Translation_Entry $entry
- * @return bool
- */
- function add_entry_or_merge( $entry ) {
- if ( is_array( $entry ) ) {
- $entry = new Translation_Entry( $entry );
- }
- $key = $entry->key();
- if ( false === $key ) {
- return false;
- }
- if ( isset( $this->entries[ $key ] ) ) {
- $this->entries[ $key ]->merge_with( $entry );
- } else {
- $this->entries[ $key ] = &$entry;
- }
- return true;
- }
- /**
- * Sets $header PO header to $value
- *
- * If the header already exists, it will be overwritten
- *
- * TODO: this should be out of this class, it is gettext specific
- *
- * @param string $header header name, without trailing :
- * @param string $value header value, without trailing \n
- */
- function set_header( $header, $value ) {
- $this->headers[ $header ] = $value;
- }
- /**
- * @param array $headers
- */
- function set_headers( $headers ) {
- foreach ( $headers as $header => $value ) {
- $this->set_header( $header, $value );
- }
- }
- /**
- * @param string $header
- */
- function get_header( $header ) {
- return isset( $this->headers[ $header ] ) ? $this->headers[ $header ] : false;
- }
- /**
- * @param Translation_Entry $entry
- */
- function translate_entry( &$entry ) {
- $key = $entry->key();
- return isset( $this->entries[ $key ] ) ? $this->entries[ $key ] : false;
- }
- /**
- * @param string $singular
- * @param string $context
- * @return string
- */
- function translate( $singular, $context = null ) {
- $entry = new Translation_Entry(
- array(
- 'singular' => $singular,
- 'context' => $context,
- )
- );
- $translated = $this->translate_entry( $entry );
- return ( $translated && ! empty( $translated->translations ) ) ? $translated->translations[0] : $singular;
- }
- /**
- * Given the number of items, returns the 0-based index of the plural form to use
- *
- * Here, in the base Translations class, the common logic for English is implemented:
- * 0 if there is one element, 1 otherwise
- *
- * This function should be overridden by the subclasses. For example MO/PO can derive the logic
- * from their headers.
- *
- * @param integer $count number of items
- */
- function select_plural_form( $count ) {
- return 1 == $count ? 0 : 1;
- }
- /**
- * @return int
- */
- function get_plural_forms_count() {
- return 2;
- }
- /**
- * @param string $singular
- * @param string $plural
- * @param int $count
- * @param string $context
- */
- function translate_plural( $singular, $plural, $count, $context = null ) {
- $entry = new Translation_Entry(
- array(
- 'singular' => $singular,
- 'plural' => $plural,
- 'context' => $context,
- )
- );
- $translated = $this->translate_entry( $entry );
- $index = $this->select_plural_form( $count );
- $total_plural_forms = $this->get_plural_forms_count();
- if ( $translated && 0 <= $index && $index < $total_plural_forms &&
- is_array( $translated->translations ) &&
- isset( $translated->translations[ $index ] ) ) {
- return $translated->translations[ $index ];
- } else {
- return 1 == $count ? $singular : $plural;
- }
- }
- /**
- * Merge $other in the current object.
- *
- * @param Object $other Another Translation object, whose translations will be merged in this one (passed by reference).
- * @return void
- */
- function merge_with( &$other ) {
- foreach ( $other->entries as $entry ) {
- $this->entries[ $entry->key() ] = $entry;
- }
- }
- /**
- * @param object $other
- */
- function merge_originals_with( &$other ) {
- foreach ( $other->entries as $entry ) {
- if ( ! isset( $this->entries[ $entry->key() ] ) ) {
- $this->entries[ $entry->key() ] = $entry;
- } else {
- $this->entries[ $entry->key() ]->merge_with( $entry );
- }
- }
- }
- }
- 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 \n's 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 );
- }
- }
- }
- endif;
- if ( ! class_exists( 'NOOP_Translations', false ) ) :
- /**
- * Provides the same interface as Translations, but doesn't do anything
- */
- class NOOP_Translations {
- var $entries = array();
- var $headers = array();
- function add_entry( $entry ) {
- return true;
- }
- /**
- * @param string $header
- * @param string $value
- */
- function set_header( $header, $value ) {
- }
- /**
- * @param array $headers
- */
- function set_headers( $headers ) {
- }
- /**
- * @param string $header
- * @return false
- */
- function get_header( $header ) {
- return false;
- }
- /**
- * @param Translation_Entry $entry
- * @return false
- */
- function translate_entry( &$entry ) {
- return false;
- }
- /**
- * @param string $singular
- * @param string $context
- */
- function translate( $singular, $context = null ) {
- return $singular;
- }
- /**
- * @param int $count
- * @return bool
- */
- function select_plural_form( $count ) {
- return 1 == $count ? 0 : 1;
- }
- /**
- * @return int
- */
- function get_plural_forms_count() {
- return 2;
- }
- /**
- * @param string $singular
- * @param string $plural
- * @param int $count
- * @param string $context
- */
- function translate_plural( $singular, $plural, $count, $context = null ) {
- return 1 == $count ? $singular : $plural;
- }
- /**
- * @param object $other
- */
- function merge_with( &$other ) {
- }
- }
- endif;