/**
* Defined by IfwPsn_Vendor_Zend_Validate_Interface
*
* Returns true if and only if $value contains only alphabetic characters
*
* @param string $value
* @return boolean
*/
public function isValid($value)
{
if (!is_string($value)) {
$this->_error(self::INVALID);
return false;
}
$this->_setValue($value);
if ('' === $value) {
$this->_error(self::STRING_EMPTY);
return false;
}
if (null === self::$_filter) {
/**
* @see IfwPsn_Vendor_Zend_Filter_Alpha
*/
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Filter/Alpha.php';
self::$_filter = new IfwPsn_Vendor_Zend_Filter_Alpha();
}
self::$_filter->allowWhiteSpace = $this->allowWhiteSpace;
if ($value !== self::$_filter->filter($value)) {
$this->_error(self::NOT_ALPHA);
return false;
}
return true;
}
/**
* Sets default option values for this instance
*
* @param boolean $allowWhiteSpace
* @return void
*/
public function __construct($allowWhiteSpace = false)
{
if ($allowWhiteSpace instanceof IfwPsn_Vendor_Zend_Config) {
$allowWhiteSpace = $allowWhiteSpace->toArray();
} else {
if (is_array($allowWhiteSpace)) {
if (array_key_exists('allowwhitespace', $allowWhiteSpace)) {
$allowWhiteSpace = $allowWhiteSpace['allowwhitespace'];
} else {
$allowWhiteSpace = false;
}
}
}
$this->allowWhiteSpace = (bool) $allowWhiteSpace;
if (null === self::$_unicodeEnabled) {
self::$_unicodeEnabled = @preg_match('/\\pL/u', 'a') ? true : false;
}
if (null === self::$_meansEnglishAlphabet) {
$this->_locale = new IfwPsn_Vendor_Zend_Locale('auto');
self::$_meansEnglishAlphabet = in_array($this->_locale->getLanguage(), array('ja', 'ko', 'zh'));
}
}
