/**
* Class for a set of entries for translation and their associated headers
*
- * @version $Id: translations.php 114 2009-05-11 17:30:38Z nbachiyski $
+ * @version $Id: translations.php 718 2012-10-31 00:32:02Z nbachiyski $
* @package pomo
* @subpackage translations
*/
require_once dirname(__FILE__) . '/entry.php';
+if ( !class_exists( 'Translations' ) ):
class Translations {
var $entries = array();
var $headers = array();
/**
* Add entry to the PO structure
*
- * @param object &$entry
+ * @param array|Translation_Entry &$entry
* @return bool true on success, false if the entry doesn't have a key
*/
function add_entry($entry) {
}
$key = $entry->key();
if (false === $key) return false;
- $this->entries[$key] = $entry;
+ $this->entries[$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;
}
$this->headers[$header] = $value;
}
- function set_headers(&$headers) {
+ /**
+ * @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);
/**
* Given the number of items, returns the 0-based index of the plural form to use
*
- * Here, in the base Translations class, the commong logic for English is implmented:
+ * 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 overrided by the sub-classes. For example MO/PO can derive the logic
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);
* @return void
**/
function merge_with(&$other) {
- $this->entries = array_merge($this->entries, $other->entries);
+ foreach( $other->entries as $entry ) {
+ $this->entries[$entry->key()] = $entry;
+ }
+ }
+
+ function merge_originals_with(&$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 implmentation of select_plural_form.
+ * 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)) {
- $plural_header = $this->get_header('Plural-Forms');
- $this->_gettext_select_plural_form = $this->_make_gettext_select_plural_form($plural_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, $expression);
}
return call_user_func($this->_gettext_select_plural_form, $count);
}
/**
- * Makes a function, which will return the right translation index, according to the
- * plural forms header
+ * @param string $header
+ * @return array
*/
- function _make_gettext_select_plural_form($plural_header) {
- $res = create_function('$count', 'return 1 == $count? 0 : 1;');
- if ($plural_header && (preg_match('/^\s*nplurals\s*=\s*(\d+)\s*;\s+plural\s*=\s*(.+)$/', $plural_header, $matches))) {
+ function nplurals_and_expression_from_header($header) {
+ if (preg_match('/^\s*nplurals\s*=\s*(\d+)\s*;\s+plural\s*=\s*(.+)$/', $header, $matches)) {
$nplurals = (int)$matches[1];
- $this->_nplurals = $nplurals;
- $plural_expr = trim($this->_parenthesize_plural_exression($matches[2]));
- $plural_expr = str_replace('n', '$n', $plural_expr);
- $func_body = "
- \$index = (int)($plural_expr);
- return (\$index < $nplurals)? \$index : $nplurals - 1;";
- $res = create_function('$n', $func_body);
+ $expression = trim($this->parenthesize_plural_exression($matches[2]));
+ return array($nplurals, $expression);
+ } else {
+ return array(2, 'n != 1');
}
- return $res;
}
/**
- * Adds parantheses to the inner parts of ternary operators in
+ * 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) {
+ $expression = str_replace('n', '$n', $expression);
+ $func_body = "
+ \$index = (int)($expression);
+ return (\$index < $nplurals)? \$index : $nplurals - 1;";
+ return create_function('$n', $func_body);
+ }
+
+ /**
+ * 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) {
+ function parenthesize_plural_exression($expression) {
$expression .= ';';
$res = '';
$depth = 0;
}
return rtrim($res, ';');
}
-
+
+ /**
+ * @param string $translation
+ * @return array
+ */
function make_headers($translation) {
$headers = array();
// sometimes \ns are used instead of real new lines
return $headers;
}
+ /**
+ * @param string $header
+ * @param string $value
+ */
function set_header($header, $value) {
parent::set_header($header, $value);
- if ('Plural-Forms' == $header)
- $this->_gettext_select_plural_form = $this->_make_gettext_select_plural_form($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' ) ):
+/**
+ * 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;
+ }
+
+ function set_header($header, $value) {
+ }
+
+ function set_headers($headers) {
+ }
-?>
+ function get_header($header) {
+ return false;
+ }
+
+ function translate_entry(&$entry) {
+ return false;
+ }
+
+ /**
+ * @param string $singular
+ * @param string $context
+ */
+ function translate($singular, $context=null) {
+ return $singular;
+ }
+
+ function select_plural_form($count) {
+ return 1 == $count? 0 : 1;
+ }
+
+ 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 : $plural;
+ }
+
+ function merge_with(&$other) {
+ }
+}
+endif;
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