/**
* Constructor loads the ruleset into memory
* @param array $ruleSet the set of rules that will be used by the lancaster algorithm. if empty
* this will use the default ruleset embedded in the LancasterStemmer
*/
public function __construct($ruleSet = array())
{
//setup the default rule set
if (empty($ruleSet)) {
$ruleSet = LancasterStemmer::getDefaultRuleSet();
}
$this->indexRules($ruleSet);
//only get the english vowel checker
$this->vowelChecker = VowelsAbstractFactory::factory("English");
}
public function testLancasterStemmper()
{
$stemmer = new LancasterStemmer();
$this->assertEquals('maxim', $stemmer->stem('maximum'));
$this->assertEquals('presum', $stemmer->stem('presumably'));
$this->assertEquals('multiply', $stemmer->stem('multiply'));
$this->assertEquals('provid', $stemmer->stem('provision'));
$this->assertEquals('ow', $stemmer->stem('owed'));
$this->assertEquals('ear', $stemmer->stem('ear'));
$this->assertEquals('say', $stemmer->stem('saying'));
$this->assertEquals('cry', $stemmer->stem('crying'));
$this->assertEquals('string', $stemmer->stem('string'));
$this->assertEquals('meant', $stemmer->stem('meant'));
$this->assertEquals('cem', $stemmer->stem('cement'));
$this->assertEquals(null, $stemmer->stem(' '));
}