From 903ae8a581fac1e6917fc3e31d2ad8fb91df80c3 Mon Sep 17 00:00:00 2001 From: ctrlaltca <> Date: Thu, 12 Jul 2012 11:21:01 +0000 Subject: standardize the use of unix eol; use svn properties to enforce native eol --- framework/I18N/core/ChoiceFormat.php | 452 +++++++++++++++++------------------ 1 file changed, 226 insertions(+), 226 deletions(-) (limited to 'framework/I18N/core/ChoiceFormat.php') diff --git a/framework/I18N/core/ChoiceFormat.php b/framework/I18N/core/ChoiceFormat.php index b8eb69f0..dd8e48f8 100644 --- a/framework/I18N/core/ChoiceFormat.php +++ b/framework/I18N/core/ChoiceFormat.php @@ -1,226 +1,226 @@ - - * @version $Revision: 1.1 $ $Date: 2005/01/11 07:19:39 $ - * @package System.I18N.core - */ - - -/** - * ChoiceFormat class. - * - * 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. - * - * @author Xiang Wei Zhuo - * @version v1.0, last update on Fri Dec 24 20:46:16 EST 2004 - * @package System.I18N.core - */ -class ChoiceFormat -{ - /** - * The pattern to validate a set notation - * @var string - */ - protected $validate = '/[\(\[\{]|[-Inf\d:\s]+|,|[\+Inf\d\s:\?\-=!><%\|&\(\)]+|[\)\]\}]/ms'; - - /** - * The pattern to parse the formatting string. - * @var string - */ - protected $parse = '/\s*\|?([\(\[\{]([-Inf\d:\s]+,?[\+Inf\d\s:\?\-=!><%\|&\(\)]*)+[\)\]\}])\s*/'; - - /** - * The value for positive infinity. - * @var float - */ - protected $inf; - - - /** - * Constructor. - */ - function __construct() - { - $this->inf = -log(0); - } - - - /** - * Determine if the given number belongs to a given set - * @param float the number to test. - * @param string the set, in set notation. - * @return boolean true if number is in the set, false otherwise. - */ - function isValid($number, $set) - { - $n = preg_match_all($this->validate,$set,$matches,PREG_SET_ORDER); - - if($n < 3) throw new Exception("Invalid set \"{$set}\""); - - if(preg_match('/\{\s*n:([^\}]+)\}/', $set, $def)) - { - return $this->isValidSetNotation($number, $def[1]); - } - - $leftBracket = $matches[0][0]; - $rightBracket = $matches[$n-1][0]; - - $i = 0; - $elements = array(); - foreach($matches as $match) - { - $string = $match[0]; - if($i != 0 && $i != $n-1 && $string !== ',') - { - if($string == '-Inf') - $elements[] = -1*$this->inf; - else if ($string == '+Inf' || $string == 'Inf') - $elements[] = $this->inf; - else - $elements[] = floatval($string); - } - $i++; - } - $total = count($elements); - $number = floatval($number); - - if($leftBracket == '{' && $rightBracket == '}') - return in_array($number, $elements); - - $left = false; - if($leftBracket == '[') - $left = $number >= $elements[0]; - else if ($leftBracket == '(') - $left = $number > $elements[0]; - - $right = false; - if($rightBracket==']') - $right = $number <= $elements[$total-1]; - else if($rightBracket == ')') - $right = $number < $elements[$total-1]; - - if($left && $right) return true; - - return false; - } - - protected function isValidSetNotation($number, $set) - { - $str = '$result = '.str_replace('n', '$number', $set).';'; - try - { - eval($str); - return $result; - } - catch(Exception $e) - { - return false; - } - } - - /** - * Parse a choice string and get a list of sets and a list of strings - * corresponding to the sets. - * @param string the string containing the choices - * @return array array($sets, $strings) - */ - function parse($string) - { - $n = preg_match_all($this->parse,$string,$matches, PREG_OFFSET_CAPTURE); - $sets = array(); - foreach($matches[1] as $match) - $sets[] = $match[0]; - $offset = $matches[0]; - $strings = array(); - for($i = 0; $i < $n; $i++) - { - $len = strlen($offset[$i][0]); - $begin = $i == 0? $len : $offset[$i][1] + $len; - $end = $i == $n-1 ? strlen($string) : $offset[$i+1][1]; - $strings[] = substr($string, $begin, $end - $begin); - } - return array($sets, $strings); - } - - /** - * For the choice string, and a number, find and return the - * string that satisfied the set within the choices. - * @param string the choices string. - * @param float the number to test. - * @return string the choosen string. - */ - public function format($string, $number) - { - list($sets, $strings) = $this->parse($string); - $total = count($sets); - for($i = 0; $i < $total; $i++) - { - if($this->isValid($number, $sets[$i])) - return $strings[$i]; - } - return false; - } -} - -?> + + * @version $Revision: 1.1 $ $Date: 2005/01/11 07:19:39 $ + * @package System.I18N.core + */ + + +/** + * ChoiceFormat class. + * + * 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. + * + * @author Xiang Wei Zhuo + * @version v1.0, last update on Fri Dec 24 20:46:16 EST 2004 + * @package System.I18N.core + */ +class ChoiceFormat +{ + /** + * The pattern to validate a set notation + * @var string + */ + protected $validate = '/[\(\[\{]|[-Inf\d:\s]+|,|[\+Inf\d\s:\?\-=!><%\|&\(\)]+|[\)\]\}]/ms'; + + /** + * The pattern to parse the formatting string. + * @var string + */ + protected $parse = '/\s*\|?([\(\[\{]([-Inf\d:\s]+,?[\+Inf\d\s:\?\-=!><%\|&\(\)]*)+[\)\]\}])\s*/'; + + /** + * The value for positive infinity. + * @var float + */ + protected $inf; + + + /** + * Constructor. + */ + function __construct() + { + $this->inf = -log(0); + } + + + /** + * Determine if the given number belongs to a given set + * @param float the number to test. + * @param string the set, in set notation. + * @return boolean true if number is in the set, false otherwise. + */ + function isValid($number, $set) + { + $n = preg_match_all($this->validate,$set,$matches,PREG_SET_ORDER); + + if($n < 3) throw new Exception("Invalid set \"{$set}\""); + + if(preg_match('/\{\s*n:([^\}]+)\}/', $set, $def)) + { + return $this->isValidSetNotation($number, $def[1]); + } + + $leftBracket = $matches[0][0]; + $rightBracket = $matches[$n-1][0]; + + $i = 0; + $elements = array(); + foreach($matches as $match) + { + $string = $match[0]; + if($i != 0 && $i != $n-1 && $string !== ',') + { + if($string == '-Inf') + $elements[] = -1*$this->inf; + else if ($string == '+Inf' || $string == 'Inf') + $elements[] = $this->inf; + else + $elements[] = floatval($string); + } + $i++; + } + $total = count($elements); + $number = floatval($number); + + if($leftBracket == '{' && $rightBracket == '}') + return in_array($number, $elements); + + $left = false; + if($leftBracket == '[') + $left = $number >= $elements[0]; + else if ($leftBracket == '(') + $left = $number > $elements[0]; + + $right = false; + if($rightBracket==']') + $right = $number <= $elements[$total-1]; + else if($rightBracket == ')') + $right = $number < $elements[$total-1]; + + if($left && $right) return true; + + return false; + } + + protected function isValidSetNotation($number, $set) + { + $str = '$result = '.str_replace('n', '$number', $set).';'; + try + { + eval($str); + return $result; + } + catch(Exception $e) + { + return false; + } + } + + /** + * Parse a choice string and get a list of sets and a list of strings + * corresponding to the sets. + * @param string the string containing the choices + * @return array array($sets, $strings) + */ + function parse($string) + { + $n = preg_match_all($this->parse,$string,$matches, PREG_OFFSET_CAPTURE); + $sets = array(); + foreach($matches[1] as $match) + $sets[] = $match[0]; + $offset = $matches[0]; + $strings = array(); + for($i = 0; $i < $n; $i++) + { + $len = strlen($offset[$i][0]); + $begin = $i == 0? $len : $offset[$i][1] + $len; + $end = $i == $n-1 ? strlen($string) : $offset[$i+1][1]; + $strings[] = substr($string, $begin, $end - $begin); + } + return array($sets, $strings); + } + + /** + * For the choice string, and a number, find and return the + * string that satisfied the set within the choices. + * @param string the choices string. + * @param float the number to test. + * @return string the choosen string. + */ + public function format($string, $number) + { + list($sets, $strings) = $this->parse($string); + $total = count($sets); + for($i = 0; $i < $total; $i++) + { + if($this->isValid($number, $sets[$i])) + return $strings[$i]; + } + return false; + } +} + +?> -- cgit v1.2.3