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<?php
/**
* @package ActiveRecord
*/
namespace ActiveRecord;
/**
* @package ActiveRecord
*/
abstract class Inflector
{
/**
* Get an instance of the {@link Inflector} class.
*
* @return object
*/
public static function instance()
{
return new StandardInflector();
}
/**
* Turn a string into its camelized version.
*
* @param string $s string to convert
* @return string
*/
public function camelize($s)
{
$s = preg_replace('/[_-]+/','_',trim($s));
$s = str_replace(' ', '_', $s);
$camelized = '';
for ($i=0,$n=strlen($s); $i<$n; ++$i)
{
if ($s[$i] == '_' && $i+1 < $n)
$camelized .= strtoupper($s[++$i]);
else
$camelized .= $s[$i];
}
$camelized = trim($camelized,' _');
if (strlen($camelized) > 0)
$camelized[0] = strtolower($camelized[0]);
return $camelized;
}
/**
* Determines if a string contains all uppercase characters.
*
* @param string $s string to check
* @return bool
*/
public static function is_upper($s)
{
return (strtoupper($s) === $s);
}
/**
* Determines if a string contains all lowercase characters.
*
* @param string $s string to check
* @return bool
*/
public static function is_lower($s)
{
return (strtolower($s) === $s);
}
/**
* Convert a camelized string to a lowercase, underscored string.
*
* @param string $s string to convert
* @return string
*/
public function uncamelize($s)
{
$normalized = '';
for ($i=0,$n=strlen($s); $i<$n; ++$i)
{
if (ctype_alpha($s[$i]) && self::is_upper($s[$i]))
$normalized .= '_' . strtolower($s[$i]);
else
$normalized .= $s[$i];
}
return trim($normalized,' _');
}
/**
* Convert a string with space into a underscored equivalent.
*
* @param string $s string to convert
* @return string
*/
public function underscorify($s)
{
return preg_replace(array('/[_\- ]+/','/([a-z])([A-Z])/'),array('_','\\1_\\2'),trim($s));
}
public function keyify($class_name)
{
return strtolower($this->underscorify(denamespace($class_name))) . '_id';
}
abstract function variablize($s);
}
/**
* @package ActiveRecord
*/
class StandardInflector extends Inflector
{
public function tableize($s) { return Utils::pluralize(strtolower($this->underscorify($s))); }
public function variablize($s) { return str_replace(array('-',' '),array('_','_'),strtolower(trim($s))); }
}
?>
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