/**
* Sets the pattern to format against. The default patterns
* are retrieved from the sfNumberFormatInfo instance.
*
* @param string $pattern the requested patterns.
* @return string a number format pattern.
*/
protected function setPattern($pattern)
{
switch ($pattern)
{
case 'c':
case 'C':
$this->formatInfo->setPattern(sfNumberFormatInfo::CURRENCY);
break;
case 'd':
case 'D':
$this->formatInfo->setPattern(sfNumberFormatInfo::DECIMAL);
break;
case 'e':
case 'E':
$this->formatInfo->setPattern(sfNumberFormatInfo::SCIENTIFIC);
break;
case 'p':
case 'P':
$this->formatInfo->setPattern(sfNumberFormatInfo::PERCENTAGE);
break;
default:
$this->formatInfo->setPattern($pattern);
break;
}
}
/**
* Get the era. i.e. in gregorian, year > 0 is AD, else BC.
* @todo How to support multiple Eras?, e.g. Japanese.
* @param array getdate format.
* @param string a pattern.
* @return string era
*/
protected function getEra($date, $pattern = 'G')
{
if ($pattern != 'G') {
throw new Exception('The pattern for era is "G".');
}
$year = $date['year'];
if ($year > 0) {
return $this->formatInfo->getEra(1);
} else {
return $this->formatInfo->getEra(0);
}
}
function testGetInstance()
{
$format = DateTimeFormatInfo::getInstance('zh_CN');
$pattern = 'yyyy-M-d';
$this->assertEqual($pattern, $format->MediumDatePattern);
}