Translations
Source
File: wp-includes/pomo/translations.php
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 sub-classes. 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);
}
}
}
Methods
- add_entry — Add entry to the PO structure
- add_entry_or_merge
- get_header
- get_plural_forms_count
- merge_originals_with
- merge_with — Merge $other in the current object.
- select_plural_form — Given the number of items, returns the 0-based index of the plural form to use
- set_header — Sets $header PO header to $value
- set_headers
- translate
- translate_entry
- translate_plural