ChoiceFormat converts between ranges of numeric values and string names for those ranges. A ChoiceFormat splits the real number line -Inf to +Inf into two or more contiguous ranges. Each range is mapped to a string. ChoiceFormat is generally used in a MessageFormat for displaying grammatically correct plurals such as "There are 2 files." $string = '[0] are no files |[1] is one file |(1,Inf] are {number} files'; $formatter = new MessageFormat(...); //init for a source $translated = $formatter->format($string); $choice = new ChoiceFormat(); echo $choice->format($translated, 0); //shows "are no files" The message/string choices are separated by the pipe "|" followed by a set notation of the form # [1,2] -- accepts values between 1 and 2, inclusive. # (1,2) -- accepts values between 1 and 2, excluding 1 and 2. # {1,2,3,4} -- only values defined in the set are accepted. # [-Inf,0) -- accepts value greater or equal to negative infinity and strictly less than 0 Any non-empty combinations of the delimiters of square and round brackets are acceptable. Since version 3.1.2 the following set notation is also possible. # {n: n % 10 > 1 && n % 10 < 5} -- matches numbers like 2, 3, 4, 22, 23, 24 Where set is defined by the expression after n:. In particular, the expression accepts the following mathematical/logical operators to form a set of logical conditions on the value given by n: # < -- less than. # <= -- less than equals. # > -- greater than. # >= -- greater than equals. # == -- of equal value. # % -- modulo, e.g., 1 % 10 equals 1, 11 % 10 equals 1. # - -- minus, negative. # + -- addition. # & -- conditional AND. # && -- condition AND with short circuit. # | -- conditional OR. # || -- conditional OR with short circuit. # ! -- negation. Additional round brackets can also be used to perform grouping.
Exemplo n.º 1
0
 function test_english()
 {
     $choice = new ChoiceFormat();
     $string = '[0] none |{n: n % 10 == 1} 1st |{n: n % 10 == 2} 2nd |{n: n % 10 == 3} 3rd |{n:n} th';
     $wants = array('none' => array(0), '1st' => array(1, 11, 21), '2nd' => array(2, 12, 22), '3rd' => array(3, 13, 23), 'th' => array(4, 5, 6, 7, 14, 15));
     foreach ($wants as $want => $numbers) {
         foreach ($numbers as $n) {
             $this->assertEquals($want, $choice->format($string, $n));
         }
     }
 }
Exemplo n.º 2
0
 /**
  * Display the choosen translated string.
  * Overrides the parent method, also calls parent's renderBody to
  * translate.
  */
 protected function translateText($text, $subs)
 {
     $text = parent::translateText($text, $subs);
     $choice = new ChoiceFormat();
     $value = $this->getValue();
     $string = $choice->format($text, $value);
     if ($string) {
         return strtr($string, array('{Value}' => $value));
     }
 }