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PK w�\u� �c c src/StemmerFactory.phpnu �[��� <?php namespace Wamania\Snowball; use voku\helper\UTF8; use Wamania\Snowball\Stemmer\Catalan; use Wamania\Snowball\Stemmer\Danish; use Wamania\Snowball\Stemmer\Dutch; use Wamania\Snowball\Stemmer\English; use Wamania\Snowball\Stemmer\Finnish; use Wamania\Snowball\Stemmer\French; use Wamania\Snowball\Stemmer\German; use Wamania\Snowball\Stemmer\Italian; use Wamania\Snowball\Stemmer\Norwegian; use Wamania\Snowball\Stemmer\Portuguese; use Wamania\Snowball\Stemmer\Romanian; use Wamania\Snowball\Stemmer\Russian; use Wamania\Snowball\Stemmer\Spanish; use Wamania\Snowball\Stemmer\Stemmer; use Wamania\Snowball\Stemmer\Swedish; class StemmerFactory { const LANGS = [ Catalan::class => ['ca', 'cat', 'catalan'], Danish::class => ['da', 'dan', 'danish'], Dutch::class => ['nl', 'dut', 'nld', 'dutch'], English::class => ['en', 'eng', 'english'], Finnish::class => ['fi', 'fin', 'finnish'], French::class => ['fr', 'fre', 'fra', 'french'], German::class => ['de', 'deu', 'ger', 'german'], Italian::class => ['it', 'ita', 'italian'], Norwegian::class => ['no', 'nor', 'norwegian'], Portuguese::class => ['pt', 'por', 'portuguese'], Romanian::class => ['ro', 'rum', 'ron', 'romanian'], Russian::class => ['ru', 'rus', 'russian'], Spanish::class => ['es', 'spa', 'spanish'], Swedish::class => ['sv', 'swe', 'swedish'] ]; /** * @throws NotFoundException */ public static function create(string $code): Stemmer { $code = UTF8::strtolower($code); foreach (self::LANGS as $classname => $isoCodes) { if (in_array($code, $isoCodes)) { return new $classname; } } throw new NotFoundException(sprintf('Stemmer not found for %s', $code)); } } PK w�\�% �9 9 src/Stemmer/Norwegian.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/norwegian/stemmer.html * @author wamania * */ class Norwegian extends Stem { /** * All norwegian vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y', 'æ', 'å', 'ø'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); // R2 is not used: R1 is defined in the same way as in the German stemmer $this->r1(); // then R1 is adjusted so that the region before it contains at least 3 letters. if ($this->r1Index < 3) { $this->r1Index = 3; $this->r1 = UTF8::substr($this->word, 3); } // Do each of steps 1, 2 3 and 4. $this->step1(); $this->step2(); $this->step3(); return $this->word; } /** * Define a valid s-ending as one of * b c d f g h j l m n o p r t v y z, * or k not preceded by a vowel * * @param string $ending * @return boolean */ private function hasValidSEnding($word) { $lastLetter = UTF8::substr($word, -1, 1); if (in_array($lastLetter, array('b', 'c', 'd', 'f', 'g', 'h', 'j', 'l', 'm', 'n', 'o', 'p', 'r', 't', 'v', 'y', 'z'))) { return true; } if ($lastLetter == 'k') { $beforeLetter = UTF8::substr($word, -2, 1); if (!in_array($beforeLetter, self::$vowels)) { return true; } } return false; } /** * Step 1 * Search for the longest among the following suffixes in R1, and perform the action indicated. */ private function step1() { // erte ert // replace with er if ( ($position = $this->searchIfInR1(array('erte', 'ert'))) !== false) { $this->word = preg_replace('#(erte|ert)$#u', 'er', $this->word); return true; } // a e ede ande ende ane ene hetene en heten ar er heter as es edes endes enes hetenes ens hetens ers ets et het ast // delete if ( ($position = $this->searchIfInR1(array( 'hetenes', 'hetene', 'hetens', 'heten', 'endes', 'heter', 'ande', 'ende', 'enes', 'edes', 'ede', 'ane', 'ene', 'het', 'ers', 'ets', 'ast', 'ens', 'en', 'ar', 'er', 'as', 'es', 'et', 'a', 'e' ))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // s // delete if preceded by a valid s-ending if ( ($position = $this->searchIfInR1(array('s'))) !== false) { $word = UTF8::substr($this->word, 0, $position); if ($this->hasValidSEnding($word)) { $this->word = $word; } return true; } } /** * Step 2 * If the word ends dt or vt in R1, delete the t. */ private function step2() { if ($this->searchIfInR1(array('dt', 'vt')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } } /** * Step 3: * Search for the longest among the following suffixes in R1, and if found, delete. */ private function step3() { // leg eleg ig eig lig elig els lov elov slov hetslov if ( ($position = $this->searchIfInR1(array( 'hetslov', 'eleg', 'elov', 'slov', 'elig', 'eig', 'lig', 'els', 'lov', 'leg', 'ig' ))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); } } } PK w�\˩�� I I src/Stemmer/English.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * English Porter 2 * * @link http://snowball.tartarus.org/algorithms/english/stemmer.html * @author wamania * */ class English extends Stem { /** * All english vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y'); protected static $doubles = array('bb', 'dd', 'ff', 'gg', 'mm', 'nn', 'pp', 'rr', 'tt'); protected static $liEnding = array('c', 'd', 'e', 'g', 'h', 'k', 'm', 'n', 'r', 't'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } if (Utf8::strlen($word) < 3) { return $word; } $this->word = UTF8::strtolower($word); // exceptions if (null !== ($word = $this->exception1())) { return $word; } $this->plainVowels = implode('', self::$vowels); // Remove initial ', if present. $first = UTF8::substr($this->word, 0, 1); if ($first == "'") { $this->word = UTF8::substr($this->word, 1); } // Set initial y, or y after a vowel, to Y if ($first == 'y') { $this->word = preg_replace('#^y#u', 'Y', $this->word); } $this->word = preg_replace('#(['.$this->plainVowels.'])y#u', '$1Y', $this->word); $this->r1(); $this->exceptionR1(); $this->r2(); $this->step0(); $this->step1a(); // exceptions 2 if (null !== ($word = $this->exception2())) { return $word; } $this->step1b(); $this->step1c(); $this->step2(); $this->step3(); $this->step4(); $this->step5(); $this->finish(); return $this->word; } /** * Step 0 * Remove ', 's, 's' */ private function step0() { if ( ($position = $this->search(array("'s'", "'s", "'"))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); } } private function step1a() { // sses // replace by ss if ( ($position = $this->search(array('sses'))) !== false) { $this->word = preg_replace('#(sses)$#u', 'ss', $this->word); return true; } // ied+ ies* // replace by i if preceded by more than one letter, otherwise by ie (so ties -> tie, cries -> cri) if ( ($position = $this->search(array('ied', 'ies'))) !== false) { if ($position > 1) { $this->word = preg_replace('#(ied|ies)$#u', 'i', $this->word); } else { $this->word = preg_replace('#(ied|ies)$#u', 'ie', $this->word); } return true; } // us+ ss // do nothing if ( ($position = $this->search(array('us', 'ss'))) !== false) { return true; } // s // delete if the preceding word part contains a vowel not immediately before the s (so gas and this retain the s, gaps and kiwis lose it) if ( ($position = $this->search(array('s'))) !== false) { for ($i=0; $i<$position-1; $i++) { $letter = UTF8::substr($this->word, $i, 1); if (in_array($letter, self::$vowels)) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } return true; } return false; } /** * Step 1b */ private function step1b() { // eed eedly+ // replace by ee if in R1 if ( ($position = $this->search(array('eedly', 'eed'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(eedly|eed)$#u', 'ee', $this->word); } return true; } // ed edly+ ing ingly+ // delete if the preceding word part contains a vowel, and after the deletion: // if the word ends at, bl or iz add e (so luxuriat -> luxuriate), or // if the word ends with a double remove the last letter (so hopp -> hop), or // if the word is short, add e (so hop -> hope) if ( ($position = $this->search(array('edly', 'ingly', 'ed', 'ing'))) !== false) { for ($i=0; $i<$position; $i++) { $letter = UTF8::substr($this->word, $i, 1); if (in_array($letter, self::$vowels)) { $this->word = UTF8::substr($this->word, 0, $position); if ($this->search(array('at', 'bl', 'iz')) !== false) { $this->word .= 'e'; } elseif ( ($position2 = $this->search(self::$doubles)) !== false) { $this->word = UTF8::substr($this->word, 0, ($position2+1)); } elseif ($this->isShort()) { $this->word .= 'e'; } return true; } } return true; } return false; } /** * Step 1c: * */ private function step1c() { // replace suffix y or Y by i if preceded by a non-vowel // which is not the first letter of the word (so cry -> cri, by -> by, say -> say) $length = UTF8::strlen($this->word); if ($length < 3) { return true; } if ( ($position = $this->search(array('y', 'Y'))) !== false) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if (! in_array($letter, self::$vowels)) { $this->word = preg_replace('#(y|Y)$#u', 'i', $this->word); } return true; } return false; } /** * Step 2 * Search for the longest among the following suffixes, and, if found and in R1, perform the action indicated. */ private function step2() { // iveness iviti: replace by ive if ( ($position = $this->search(array('iveness', 'iviti'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(iveness|iviti)$#u', 'ive', $this->word); } return true; } // ousli ousness: replace by ous if ( ($position = $this->search(array('ousli', 'ousness'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(ousli|ousness)$#u', 'ous', $this->word); } return true; } // izer ization: replace by ize if ( ($position = $this->search(array('izer', 'ization'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(izer|ization)$#u', 'ize', $this->word); } return true; } // ational ation ator: replace by ate if ( ($position = $this->search(array('ational', 'ation', 'ator'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(ational|ation|ator)$#u', 'ate', $this->word); } return true; } // biliti bli+: replace by ble if ( ($position = $this->search(array('biliti', 'bli'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(biliti|bli)$#u', 'ble', $this->word); } return true; } // lessli+: replace by less if ( ($position = $this->search(array('lessli'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(lessli)$#u', 'less', $this->word); } return true; } // fulness: replace by ful if ( ($position = $this->search(array('fulness', 'fulli'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(fulness|fulli)$#u', 'ful', $this->word); } return true; } // tional: replace by tion if ( ($position = $this->search(array('tional'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(tional)$#u', 'tion', $this->word); } return true; } // alism aliti alli: replace by al if ( ($position = $this->search(array('alism', 'aliti', 'alli'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(alism|aliti|alli)$#u', 'al', $this->word); } return true; } // enci: replace by ence if ( ($position = $this->search(array('enci'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(enci)$#u', 'ence', $this->word); } return true; } // anci: replace by ance if ( ($position = $this->search(array('anci'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(anci)$#u', 'ance', $this->word); } return true; } // abli: replace by able if ( ($position = $this->search(array('abli'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(abli)$#u', 'able', $this->word); } return true; } // entli: replace by ent if ( ($position = $this->search(array('entli'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(entli)$#u', 'ent', $this->word); } return true; } // ogi+: replace by og if preceded by l if ( ($position = $this->search(array('ogi'))) !== false) { if ($this->inR1($position)) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ($letter == 'l') { $this->word = preg_replace('#(ogi)$#u', 'og', $this->word); } } return true; } // li+: delete if preceded by a valid li-ending if ( ($position = $this->search(array('li'))) !== false) { if ($this->inR1($position)) { // a letter for you $letter = UTF8::substr($this->word, ($position-1), 1); if (in_array($letter, self::$liEnding)) { $this->word = UTF8::substr($this->word, 0, $position); } } return true; } return false; } /** * Step 3: * Search for the longest among the following suffixes, and, if found and in R1, perform the action indicated. */ private function step3() { // ational+: replace by ate if ($this->searchIfInR1(array('ational')) !== false) { $this->word = preg_replace('#(ational)$#u', 'ate', $this->word); return true; } // tional+: replace by tion if ($this->searchIfInR1(array('tional')) !== false) { $this->word = preg_replace('#(tional)$#u', 'tion', $this->word); return true; } // alize: replace by al if ($this->searchIfInR1(array('alize')) !== false) { $this->word = preg_replace('#(alize)$#u', 'al', $this->word); return true; } // icate iciti ical: replace by ic if ($this->searchIfInR1(array('icate', 'iciti', 'ical')) !== false) { $this->word = preg_replace('#(icate|iciti|ical)$#u', 'ic', $this->word); return true; } // ful ness: delete if ( ($position = $this->searchIfInR1(array('ful', 'ness'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // ative*: delete if in R2 if ( (($position = $this->searchIfInR1(array('ative'))) !== false) && ($this->inR2($position)) ) { $this->word = UTF8::substr($this->word, 0, $position); return true; } return false; } /** * Step 4 * Search for the longest among the following suffixes, and, if found and in R2, perform the action indicated. */ private function step4() { // ement ance ence able ible ant ment ent ism ate iti ous ive ize al er ic // delete if ( ($position = $this->search(array( 'ance', 'ence', 'ement', 'able', 'ible', 'ant', 'ment', 'ent', 'ism', 'ate', 'iti', 'ous', 'ive', 'ize', 'al', 'er', 'ic'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // ion // delete if preceded by s or t if ( ($position = $this->searchIfInR2(array('ion'))) !== false) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ($letter == 's' || $letter == 't') { $this->word = UTF8::substr($this->word, 0, $position); } return true; } return false; } /** * Step 5: * * Search for the the following suffixes, and, if found, perform the action indicated. */ private function step5() { // e // delete if in R2, or in R1 and not preceded by a short syllable if ( ($position = $this->search(array('e'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } elseif ($this->inR1($position)) { if ( (! $this->searchShortSyllabe(-4, 3)) && (! $this->searchShortSyllabe(-3, 2)) ) { $this->word = UTF8::substr($this->word, 0, $position); } } return true; } // l // delete if in R2 and preceded by l if ( ($position = $this->searchIfInR2(array('l'))) !== false) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ($letter == 'l') { $this->word = UTF8::substr($this->word, 0, $position); } return true; } return false; } private function finish() { $this->word = UTF8::str_replace('Y', 'y', $this->word); } private function exceptionR1() { if (Utf8::strpos($this->word, 'gener') === 0) { $this->r1 = UTF8::substr($this->word, 5); $this->r1Index = 5; } elseif (Utf8::strpos($this->word, 'commun') === 0) { $this->r1 = UTF8::substr($this->word, 6); $this->r1Index = 6; } elseif (Utf8::strpos($this->word, 'arsen') === 0) { $this->r1 = UTF8::substr($this->word, 5); $this->r1Index = 5; } } /** * 1/ Stem certain special words as follows, * 2/ If one of the following is found, leave it invariant, */ private function exception1() { $exceptions = array( 'skis' => 'ski', 'skies' => 'sky', 'dying' => 'die', 'lying' => 'lie', 'tying' => 'tie', 'idly' => 'idl', 'gently' => 'gentl', 'ugly' => 'ugli', 'early' => 'earli', 'only' => 'onli', 'singly' => 'singl', // invariants 'sky' => 'sky', 'news' => 'news', 'howe' => 'howe', 'atlas' => 'atlas', 'cosmos' => 'cosmos', 'bias' => 'bias', 'andes' => 'andes' ); if (isset($exceptions[$this->word])) { return $exceptions[$this->word]; } return null; } /** * Following step 1a, leave the following invariant, */ private function exception2() { $exceptions = array( 'inning' => 'inning', 'outing' => 'outing', 'canning' => 'canning', 'herring' => 'herring', 'earring' => 'earring', 'proceed' => 'proceed', 'exceed' => 'exceed', 'succeed' => 'succeed' ); if (isset($exceptions[$this->word])) { return $exceptions[$this->word]; } return null; } /** * A word is called short if it ends in a short syllable, and if R1 is null. * Note : R1 not really null, but the word at this state must be smaller than r1 index * * @return boolean */ private function isShort() { $length = UTF8::strlen($this->word); return ( ($this->searchShortSyllabe(-3, 3) || $this->searchShortSyllabe(-2, 2)) && ($length == $this->r1Index) ); } /** * Define a short syllable in a word as either (a) a vowel followed by a non-vowel other than w, x or Y and preceded by a non-vowel, * or * (b) a vowel at the beginning of the word followed by a non-vowel. * * So rap, trap, entrap end with a short syllable, and ow, on, at are classed as short syllables. * But uproot, bestow, disturb do not end with a short syllable. */ private function searchShortSyllabe($from, $nbLetters) { $length = UTF8::strlen($this->word); if ($from < 0) { $from = $length + $from; } if ($from < 0) { $from = 0; } // (a) is just for beginning of the word if ( ($nbLetters == 2) && ($from != 0) ) { return false; } $first = UTF8::substr($this->word, $from, 1); $second = UTF8::substr($this->word, ($from+1), 1); if ($nbLetters == 2) { if ( (in_array($first, self::$vowels)) && (!in_array($second, self::$vowels)) ) { return true; } } $third = UTF8::substr($this->word, ($from+2), 1); if ( (!in_array($first, self::$vowels)) && (in_array($second, self::$vowels)) && (!in_array($third, array_merge(self::$vowels, array('x', 'Y', 'w'))))) { return true; } return false; } } PK w�\��J J src/Stemmer/Stemmer.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; /** * @author Luís Cobucci <lcobucci@gmail.com> */ interface Stemmer { /** * Main function to get the STEM of a word * * @param string $word A valid UTF-8 word * * @return string * * @throws \Exception */ public function stem($word); } PK w�\T�Lj� � src/Stemmer/Danish.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/danish/stemmer.html * @author wamania * */ class Danish extends Stem { /** * All danish vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y', 'æ', 'å', 'ø'); /** * {@inheritdoc} */ public function stem($word): string { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); // R2 is not used: R1 is defined in the same way as in the German stemmer $this->r1(); // then R1 is adjusted so that the region before it contains at least 3 letters. if ($this->r1Index < 3) { $this->r1Index = 3; $this->r1 = UTF8::substr($this->word, 3); } // Do each of steps 1, 2 3 and 4. $this->step1(); $this->step2(); $this->step3(); $this->step4(); return $this->word; } /** * Define a valid s-ending as one of * a b c d f g h j k l m n o p r t v y z å * * @param string $ending * @return boolean */ private function hasValidSEnding($word) { $lastLetter = UTF8::substr($word, -1, 1); return in_array($lastLetter, array('a', 'b', 'c', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'r', 't', 'v', 'y', 'z', 'å')); } /** * Step 1 * Search for the longest among the following suffixes in R1, and perform the action indicated. */ private function step1() { // hed ethed ered e erede ende erende ene erne ere en heden eren er heder erer // heds es endes erendes enes ernes eres ens hedens erens ers ets erets et eret // delete if ( ($position = $this->searchIfInR1(array( 'erendes', 'erende', 'hedens', 'erede', 'ethed', 'heden', 'endes', 'erets', 'heder', 'ernes', 'erens', 'ered', 'ende', 'erne', 'eres', 'eren', 'eret', 'erer', 'enes', 'heds', 'ens', 'ene', 'ere', 'ers', 'ets', 'hed', 'es', 'et', 'er', 'en', 'e' ))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // s // delete if preceded by a valid s-ending if ( ($position = $this->searchIfInR1(array('s'))) !== false) { $word = UTF8::substr($this->word, 0, $position); if ($this->hasValidSEnding($word)) { $this->word = $word; } return true; } } /** * Step 2 * Search for one of the following suffixes in R1, and if found delete the last letter. * gd dt gt kt */ private function step2() { if ($this->searchIfInR1(array('gd', 'dt', 'gt', 'kt')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } } /** * Step 3: */ private function step3() { // If the word ends igst, remove the final st. if ($this->search(array('igst')) !== false) { $this->word = UTF8::substr($this->word, 0, -2); } // Search for the longest among the following suffixes in R1, and perform the action indicated. // ig lig elig els // delete, and then repeat step 2 if ( ($position = $this->searchIfInR1(array('elig', 'lig', 'ig', 'els'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); $this->step2(); return true; } // løst // replace with løs if ($this->searchIfInR1(array('løst')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } } /** * Step 4: undouble * If the word ends with double consonant in R1, remove one of the consonants. */ private function step4() { $length = UTF8::strlen($this->word); if (!$this->inR1(($length-1))) { return false; } $lastLetter = UTF8::substr($this->word, -1, 1); if (in_array($lastLetter, self::$vowels)) { return false; } $beforeLastLetter = UTF8::substr($this->word, -2, 1); if ($lastLetter == $beforeLastLetter) { $this->word = UTF8::substr($this->word, 0, -1); } return true; } } PK w�\�� �,3 ,3 src/Stemmer/Romanian.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/romanian/stemmer.html * @author wamania * */ class Romanian extends Stem { /** * All Romanian vowels */ protected static $vowels = array('a', 'ă', 'â', 'e', 'i', 'î', 'o', 'u'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); $this->plainVowels = implode('', self::$vowels); // First, i and u between vowels are put into upper case (so that they are treated as consonants). $this->word = preg_replace('#(['.$this->plainVowels.'])u(['.$this->plainVowels.'])#u', '$1U$2', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])i(['.$this->plainVowels.'])#u', '$1I$2', $this->word); $this->rv(); $this->r1(); $this->r2(); $this->step0(); $word1 = $this->word; $word2 = $this->word; do { $word1 = $this->word; $this->step1(); } while ($this->word != $word1); $this->step2(); // Do step 3 if no suffix was removed either by step 1 or step 2. if ($word2 == $this->word) { $this->step3(); } $this->step4(); $this->finish(); return $this->word; } /** * Step 0: Removal of plurals (and other simplifications) * Search for the longest among the following suffixes, and, if it is in R1, perform the action indicated. * @return boolean */ private function step0() { // ul ului // delete if ( ($position = $this->search(array('ul', 'ului'))) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // aua // replace with a if ( ($position = $this->search(array('aua'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(aua)$#u', 'a', $this->word); } return true; } // ea ele elor // replace with e if ( ($position = $this->search(array('ea', 'ele', 'elor'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(ea|ele|elor)$#u', 'e', $this->word); } return true; } // ii iua iei iile iilor ilor // replace with i if ( ($position = $this->search(array('ii', 'iua', 'iei', 'iile', 'iilor', 'ilor'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(ii|iua|iei|iile|iilor|ilor)$#u', 'i', $this->word); } return true; } // ile // replace with i if not preceded by ab if ( ($position = $this->search(array('ile'))) !== false) { if ($this->inR1($position)) { $before = UTF8::substr($this->word, ($position-2), 2); if ($before != 'ab') { $this->word = preg_replace('#(ile)$#u', 'i', $this->word); } } return true; } // atei // replace with at if ( ($position = $this->search(array('atei'))) != false) { if ($this->inR1($position)) { $this->word = preg_replace('#(atei)$#u', 'at', $this->word); } return true; } // aţie aţia // replace with aţi if ( ($position = $this->search(array('aţie', 'aţia'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(aţie|aţia)$#u', 'aţi', $this->word); } return true; } return false; } /** * Step 1: Reduction of combining suffixes * Search for the longest among the following suffixes, and, if it is in R1, preform the replacement action indicated. * Then repeat this step until no replacement occurs. * @return boolean */ private function step1() { // abilitate abilitati abilităi abilităţi // replace with abil if ( ($position = $this->search(array('abilitate', 'abilitati', 'abilităi', 'abilităţi'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(abilitate|abilitati|abilităi|abilităţi)$#u', 'abil', $this->word); } return true; } // ibilitate // replace with ibil if ( ($position = $this->search(array('ibilitate'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(ibilitate)$#u', 'ibil', $this->word); } return true; } // ivitate ivitati ivităi ivităţi // replace with iv if ( ($position = $this->search(array('ivitate', 'ivitati', 'ivităi', 'ivităţi'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(ivitate|ivitati|ivităi|ivităţi)$#u', 'iv', $this->word); } return true; } // icitate icitati icităi icităţi icator icatori iciv iciva icive icivi icivă ical icala icale icali icală // replace with ic if ( ($position = $this->search(array( 'icitate', 'icitati', 'icităi', 'icităţi', 'icatori', 'icator', 'iciva', 'icive', 'icivi', 'icivă', 'icala', 'icale', 'icali', 'icală', 'iciv', 'ical'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(icitate|icitati|icităi|icităţi|cator|icatori|iciva|icive|icivi|icivă|icala|icale|icali|icală|ical|iciv)$#u', 'ic', $this->word); } return true; } // ativ ativa ative ativi ativă aţiune atoare ator atori ătoare ător ători // replace with at if ( ($position = $this->search(array('ativa', 'ative', 'ativi', 'ativă', 'ativ', 'aţiune', 'atoare', 'atori', 'ătoare', 'ători', 'ător', 'ator'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(ativa|ative|ativi|ativă|ativ|aţiune|atoare|atori|ătoare|ători|ător|ator)$#u', 'at', $this->word); } return true; } // itiv itiva itive itivi itivă iţiune itoare itor itori // replace with it if ( ($position = $this->search(array('itiva', 'itive', 'itivi', 'itivă', 'itiv', 'iţiune', 'itoare', 'itori', 'itor'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(itiva|itive|itivi|itivă|itiv|iţiune|itoare|itori|itor)$#u', 'it', $this->word); } return true; } return false; } /** * Step 2: Removal of 'standard' suffixes * Search for the longest among the following suffixes, and, if it is in R2, perform the action indicated. * @return boolean */ private function step2() { // atori itate itati, ităţi, abila abile abili abilă, ibila ibile ibili ibilă // anta, ante, anti, antă, ator, ibil, oasa oasă oase, ităi, abil // osi oşi ant ici ică iva ive ivi ivă ata ată ati ate, ata ată ati ate uta ută uti ute, ita ită iti ite ica ice // at, os, iv, ut, it, ic // delete if ( ($position = $this->search(array( 'atori', 'itate', 'itati', 'ităţi', 'abila', 'abile', 'abili', 'abilă', 'ibila', 'ibile', 'ibili', 'ibilă', 'anta', 'ante', 'anti', 'antă', 'ator', 'ibil', 'oasa', 'oasă', 'oase', 'ităi', 'abil', 'osi', 'oşi', 'ant', 'ici', 'ică', 'iva', 'ive', 'ivi', 'ivă', 'ata', 'ată', 'ati', 'ate', 'ata', 'ată', 'ati', 'ate', 'uta', 'ută', 'uti', 'ute', 'ita', 'ită', 'iti', 'ite', 'ica', 'ice', 'at', 'os', 'iv', 'ut', 'it', 'ic' ))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // iune iuni // delete if preceded by ţ, and replace the ţ by t. if ( ($position = $this->search(array('iune', 'iuni'))) !== false) { if ($this->inR2($position)) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ($letter == 'ţ') { $this->word = UTF8::substr($this->word, 0, $position); $this->word = preg_replace('#(ţ)$#u', 't', $this->word); } } return true; } // ism isme ist ista iste isti istă işti // replace with ist if ( ($position = $this->search(array('isme', 'ism', 'ista', 'iste', 'isti', 'istă', 'işti', 'ist'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(isme|ism|ista|iste|isti|istă|işti|ist)$#u', 'ist', $this->word); } return true; } return false; } /** * Step 3: Removal of verb suffixes * Do step 3 if no suffix was removed either by step 1 or step 2. * @return boolean */ private function step3() { // are ere ire âre ind ând indu ându eze ească ez ezi ează esc eşti // eşte ăsc ăşti ăşte am ai au eam eai ea eaţi eau iam iai ia iaţi // iau ui aşi arăm arăţi ară uşi urăm urăţi ură işi irăm irăţi iră âi // âşi ârăm ârăţi âră asem aseşi ase aserăm aserăţi aseră isem iseşi ise // iserăm iserăţi iseră âsem âseşi âse âserăm âserăţi âseră usem useşi use userăm userăţi useră // delete if preceded in RV by a consonant or u if ( ($position = $this->searchIfInRv(array( 'userăţi', 'iserăţi', 'âserăţi', 'aserăţi', 'userăm', 'iserăm', 'âserăm', 'aserăm', 'iseră', 'âseşi', 'useră', 'âseră', 'useşi', 'iseşi', 'aseră', 'aseşi', 'ârăţi', 'irăţi', 'urăţi', 'arăţi', 'ească', 'usem', 'âsem', 'isem', 'asem', 'ârăm', 'urăm', 'irăm', 'arăm', 'iaţi', 'eaţi', 'ăşte', 'ăşti', 'eşte', 'eşti', 'ează', 'ându', 'indu', 'âse', 'use', 'ise', 'ase', 'âră', 'iră', 'işi', 'ură', 'uşi', 'ară', 'aşi', 'âşi', 'iau', 'iai', 'iam', 'eau', 'eai', 'eam', 'ăsc', 'are', 'ere', 'ire', 'âre', 'ind', 'ând', 'eze', 'ezi', 'esc', 'âi', 'ui', 'ia', 'ea', 'au', 'ai', 'am', 'ez' ))) !== false) { if ($this->inRv($position)) { $before = $position - 1; if ($this->inRv($before)) { $letter = UTF8::substr($this->word, $before, 1); if ( (!in_array($letter, self::$vowels)) || ($letter == 'u') ) { $this->word = UTF8::substr($this->word, 0, $position); } } } return true; } // ăm aţi em eţi im iţi âm âţi seşi serăm serăţi seră sei se sesem seseşi sese seserăm seserăţi seseră // delete if ( ($position = $this->searchIfInRv(array( 'seserăm', 'seserăţi', 'seseră', 'seseşi', 'sesem', 'serăţi', 'serăm', 'seşi', 'sese', 'seră', 'aţi', 'eţi', 'iţi', 'âţi', 'sei', 'se', 'ăm', 'âm', 'em', 'im' ))) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } } /** * Step 4: Removal of final vowel */ private function step4() { // Search for the longest among the suffixes "a e i ie ă " and, if it is in RV, delete it. if ( ($position = $this->search(array('a', 'ie', 'e', 'i', 'ă'))) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); } } return true; } /** * Finally * Turn I, U back into i, u */ private function finish() { // Turn I, U back into i, u $this->word = UTF8::str_replace(array('I', 'U'), array('i', 'u'), $this->word); } } PK w�\�(+1 +1 src/Stemmer/Spanish.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/spanish/stemmer.html * @author wamania * */ class Spanish extends Stem { /** * All spanish vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'á', 'é', 'í', 'ó', 'ú', 'ü'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); $this->rv(); $this->r1(); $this->r2(); $this->step0(); $word = $this->word; $this->step1(); // Do step 2a if no ending was removed by step 1. if ($this->word == $word) { $this->step2a(); // Do Step 2b if step 2a was done, but failed to remove a suffix. if ($this->word == $word) { $this->step2b(); } } $this->step3(); $this->finish(); return $this->word; } /** * Step 0: Attached pronoun * * Search for the longest among the following suffixes * me se sela selo selas selos la le lo las les los nos * * and delete it, if comes after one of * (a) iéndo ándo ár ér ír * (b) ando iendo ar er ir * (c) yendo following u * * in RV. In the case of (c), yendo must lie in RV, but the preceding u can be outside it. * In the case of (a), deletion is followed by removing the acute accent (for example, haciéndola -> haciendo). */ private function step0() { if ( ($position = $this->searchIfInRv(array('selas', 'selos', 'las', 'los', 'les', 'nos', 'selo', 'sela', 'me', 'se', 'la', 'le', 'lo' ))) != false) { $suffixe = UTF8::substr($this->word, $position); // a $a = array('iéndo', 'ándo', 'ár', 'ér', 'ír'); $a = array_map(function($item) use ($suffixe) { return $item . $suffixe; }, $a); if ( ($position2 = $this->searchIfInRv($a)) !== false) { $suffixe2 = UTF8::substr($this->word, $position2); $suffixe2 = UTF8::to_utf8(UTF8::to_ascii($suffixe2)); // unaccent $this->word = UTF8::substr($this->word, 0, $position2); $this->word .= $suffixe2; $this->word = UTF8::substr($this->word, 0, $position); return true; } // b $b = array('iendo', 'ando', 'ar', 'er', 'ir'); $b = array_map(function($item) use ($suffixe) { return $item . $suffixe; }, $b); if ( ($position2 = $this->searchIfInRv($b)) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // c if ( ($position2 = $this->searchIfInRv(array('yendo' . $suffixe))) != false) { $before = UTF8::substr($this->word, ($position2-1), 1); if ( (isset($before)) && ($before == 'u') ) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } } return false; } /** * Step 1 */ private function step1() { // anza anzas ico ica icos icas ismo ismos able ables ible ibles ista // istas oso osa osos osas amiento amientos imiento imientos // delete if in R2 if ( ($position = $this->search(array( 'imientos', 'imiento', 'amientos', 'amiento', 'osas', 'osos', 'osa', 'oso', 'istas', 'ista', 'ibles', 'ible', 'ables', 'able', 'ismos', 'ismo', 'icas', 'icos', 'ica', 'ico', 'anzas', 'anza'))) != false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // adora ador ación adoras adores aciones ante antes ancia ancias // delete if in R2 // if preceded by ic, delete if in R2 if ( ($position = $this->search(array( 'adoras', 'adora', 'aciones', 'ación', 'adores', 'ador', 'antes', 'ante', 'ancias', 'ancia'))) != false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } if ( ($position2 = $this->searchIfInR2(array('ic')))) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } // logía logías // replace with log if in R2 if ( ($position = $this->search(array('logías', 'logía'))) != false) { if ($this->inR2($position)) { $this->word = preg_replace('#(logías|logía)$#u', 'log', $this->word); } return true; } // ución uciones // replace with u if in R2 if ( ($position = $this->search(array('uciones', 'ución'))) != false) { if ($this->inR2($position)) { $this->word = preg_replace('#(uciones|ución)$#u', 'u', $this->word); } return true; } // encia encias // replace with ente if in R2 if ( ($position = $this->search(array('encias', 'encia'))) != false) { if ($this->inR2($position)) { $this->word = preg_replace('#(encias|encia)$#u', 'ente', $this->word); } return true; } // amente // delete if in R1 // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, // if preceded by os, ic or ad, delete if in R2 if ( ($position = $this->search(array('amente'))) != false) { // delete if in R1 if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, if ( ($position2 = $this->searchIfInR2(array('iv'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); if ( ($position3 = $this->searchIfInR2(array('at'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position3); } // if preceded by os, ic or ad, delete if in R2 } elseif ( ($position4 = $this->searchIfInR2(array('os', 'ic', 'ad'))) != false) { $this->word = UTF8::substr($this->word, 0, $position4); } return true; } // mente // delete if in R2 // if preceded by ante, able or ible, delete if in R2 if ( ($position = $this->search(array('mente'))) != false) { // delete if in R2 if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by ante, able or ible, delete if in R2 if ( ($position2 = $this->searchIfInR2(array('ante', 'able', 'ible'))) != false) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } // idad idades // delete if in R2 // if preceded by abil, ic or iv, delete if in R2 if ( ($position = $this->search(array('idades', 'idad'))) != false) { // delete if in R2 if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by abil, ic or iv, delete if in R2 if ( ($position2 = $this->searchIfInR2(array('abil', 'ic', 'iv'))) != false) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } // iva ivo ivas ivos // delete if in R2 // if preceded by at, delete if in R2 if ( ($position = $this->search(array('ivas', 'ivos', 'iva', 'ivo'))) != false) { // delete if in R2 if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by at, delete if in R2 if ( ($position2 = $this->searchIfInR2(array('at'))) != false) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } return false; } /** * Step 2a: Verb suffixes beginning y */ private function step2a() { // if found, delete if preceded by u // (Note that the preceding u need not be in RV.) if ( ($position = $this->searchIfInRv(array( 'yamos', 'yendo', 'yeron', 'yan', 'yen', 'yais', 'yas', 'yes', 'yo', 'yó', 'ya', 'ye'))) != false) { $before = UTF8::substr($this->word, ($position-1), 1); if ( (isset($before)) && ($before == 'u') ) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } return false; } /** * Step 2b: Other verb suffixes * Search for the longest among the following suffixes in RV, and perform the action indicated. */ private function step2b() { // delete if ( ($position = $this->searchIfInRv(array( 'iésemos', 'iéramos', 'ábamos', 'iríamos', 'eríamos', 'aríamos', 'áramos', 'ásemos', 'eríais', 'aremos', 'eremos', 'iremos', 'asteis', 'ieseis', 'ierais', 'isteis', 'aríais', 'irían', 'aréis', 'erían', 'erías', 'eréis', 'iréis', 'irías', 'ieran', 'iesen', 'ieron', 'iendo', 'ieras', 'iríais', 'arían', 'arías', 'amos', 'imos', 'ados', 'idos', 'irán', 'irás', 'erán', 'erás', 'ería', 'iría', 'íais', 'arán', 'arás', 'aría', 'iera', 'iese', 'aste', 'iste', 'aban', 'aran', 'asen', 'aron', 'ando', 'abas', 'adas', 'idas', 'ases', 'aras', 'aré', 'erá', 'eré', 'áis', 'ías', 'irá', 'iré', 'aba', 'ían', 'ada', 'ara', 'ase', 'ida', 'ado', 'ido', 'ará', 'ad', 'ed', 'id', 'ís', 'ió', 'ar', 'er', 'ir', 'as', 'ía', 'an' ))) != false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // en es éis emos // delete, and if preceded by gu delete the u (the gu need not be in RV) if ( ($position = $this->searchIfInRv(array('éis', 'emos', 'en', 'es'))) != false) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->search(array('gu'))) != false) { $this->word = UTF8::substr($this->word, 0, ($position2+1)); } return true; } } /** * Step 3: residual suffix * Search for the longest among the following suffixes in RV, and perform the action indicated. */ private function step3() { // os a o á í ó // delete if in RV if ( ($position = $this->searchIfInRv(array('os', 'a', 'o', 'á', 'í', 'ó'))) != false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // e é // delete if in RV, and if preceded by gu with the u in RV delete the u if ( ($position = $this->searchIfInRv(array('e', 'é'))) != false) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->searchIfInRv(array('u'))) != false) { $before = UTF8::substr($this->word, ($position2-1), 1); if ( (isset($before)) && ($before == 'g') ) { $this->word = UTF8::substr($this->word, 0, $position2); return true; } } } return false; } /** * And finally: * Remove acute accents */ private function finish() { $this->word = UTF8::str_replace(array('á', 'í', 'ó', 'é', 'ú'), array('a', 'i', 'o', 'e', 'u'), $this->word); } } PK w�\�a��� � src/Stemmer/Stem.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; abstract class Stem implements Stemmer { protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y'); /** * helper, contains stringified list of vowels * @var string */ protected $plainVowels; /** * The word we are stemming * @var string */ protected $word; /** * The original word, use to check if word has been modified * @var string */ protected $originalWord; /** * RV value * @var string */ protected $rv; /** * RV index (based on the beginning of the word) * @var integer */ protected $rvIndex; /** * R1 value * @var integer */ protected $r1; /** * R1 index (based on the beginning of the word) * @var int */ protected $r1Index; /** * R2 value * @var integer */ protected $r2; /** * R2 index (based on the beginning of the word) * @var int */ protected $r2Index; protected function inRv($position) { return ($position >= $this->rvIndex); } protected function inR1($position) { return ($position >= $this->r1Index); } protected function inR2($position) { return ($position >= $this->r2Index); } protected function searchIfInRv($suffixes) { return $this->search($suffixes, $this->rvIndex); } protected function searchIfInR1($suffixes) { return $this->search($suffixes, $this->r1Index); } protected function searchIfInR2($suffixes) { return $this->search($suffixes, $this->r2Index); } protected function search($suffixes, $offset = 0) { $length = UTF8::strlen($this->word); if ($offset > $length) { return false; } foreach ($suffixes as $suffixe) { if ( (($position = UTF8::strrpos($this->word, $suffixe, $offset)) !== false) && ((Utf8::strlen($suffixe)+$position) == $length) ) { return $position; } } return false; } /** * R1 is the region after the first non-vowel following a vowel, or the end of the word if there is no such non-vowel. */ protected function r1() { list($this->r1Index, $this->r1) = $this->rx($this->word); } /** * R2 is the region after the first non-vowel following a vowel in R1, or the end of the word if there is no such non-vowel. */ protected function r2() { list($index, $value) = $this->rx($this->r1); $this->r2 = $value; $this->r2Index = $this->r1Index + $index; } /** * Common function for R1 and R2 * Search the region after the first non-vowel following a vowel in $word, or the end of the word if there is no such non-vowel. * R1 : $in = $this->word * R2 : $in = R1 */ protected function rx($in) { $length = UTF8::strlen($in); // defaults $value = ''; $index = $length; // we search all vowels $vowels = array(); for ($i=0; $i<$length; $i++) { $letter = UTF8::substr($in, $i, 1); if (in_array($letter, static::$vowels)) { $vowels[] = $i; } } // search the non-vowel following a vowel foreach ($vowels as $position) { $after = $position + 1; $letter = UTF8::substr($in, $after, 1); if (! in_array($letter, static::$vowels)) { $index = $after + 1; $value = UTF8::substr($in, ($after+1)); break; } } return array($index, $value); } /** * Used by spanish, italian, portuguese, etc (but not by french) * * If the second letter is a consonant, RV is the region after the next following vowel, * or if the first two letters are vowels, RV is the region after the next consonant, * and otherwise (consonant-vowel case) RV is the region after the third letter. * But RV is the end of the word if these positions cannot be found. */ protected function rv() { $length = UTF8::strlen($this->word); $this->rv = ''; $this->rvIndex = $length; if ($length < 3) { return true; } $first = UTF8::substr($this->word, 0, 1); $second = UTF8::substr($this->word, 1, 1); // If the second letter is a consonant, RV is the region after the next following vowel, if (!in_array($second, static::$vowels)) { for ($i=2; $i<$length; $i++) { $letter = UTF8::substr($this->word, $i, 1); if (in_array($letter, static::$vowels)) { $this->rvIndex = $i + 1; $this->rv = UTF8::substr($this->word, ($i+1)); return true; } } } // or if the first two letters are vowels, RV is the region after the next consonant, if ( (in_array($first, static::$vowels)) && (in_array($second, static::$vowels)) ) { for ($i=2; $i<$length; $i++) { $letter = UTF8::substr($this->word, $i, 1); if (! in_array($letter, static::$vowels)) { $this->rvIndex = $i + 1; $this->rv = UTF8::substr($this->word, ($i+1)); return true; } } } // and otherwise (consonant-vowel case) RV is the region after the third letter. if ( (! in_array($first, static::$vowels)) && (in_array($second, static::$vowels)) ) { $this->rv = UTF8::substr($this->word, 3); $this->rvIndex = 3; return true; } } } PK w�\Q�Wr�< �< src/Stemmer/Finnish.phpnu �[��� <?php /** * Finnish Snowball Stemmer. * * @author msaari <mikko@mikkosaari.fi> */ namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * Finnish Snowball Stemmer. * * @link http://snowball.tartarus.org/algorithms/finnish/stemmer.html * @author msaari */ class Finnish extends Stem { /** * All swedish vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y', 'ä', 'ö'); protected static $consonants = array('b', 'c', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'p', 'q', 'r', 's', 't', 'v', 'w', 'x', 'z'); protected static $restrictedVowels = array('a', 'e', 'i', 'o', 'u', 'ä', 'ö'); /** * Long restricted vowels, ie. doubled vowels. */ protected static $longVowels = array('aa', 'ee', 'ii', 'oo', 'uu', 'ää', 'öö'); private $_removedInStep3 = false; /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (! UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = Utf8::strtolower($word); // R1 and R2 are then defined in the usual way $this->r1(); $this->r2(); // Do each of steps 1, 2 3, 4, 5 and 6. $this->step1(); $this->step2(); $this->step3(); $this->step4(); $this->step5(); $this->step6(); return $this->word; } /** * Step 1 * * Search for the longest among the following suffixes in R1, and perform * the action indicated. * * @return boolean True when something is done. */ private function step1() { // (a) kin kaan kään ko kö han hän pa pä // delete if preceded by n, t or a vowel if (($position = $this->searchIfInR1(array('kaan', 'kään', 'kin', 'han', 'hän', 'ko', 'kö', 'pa', 'pä'))) !== false) { $lastLetter = Utf8::substr($this->word, ($position-1), 1); if (in_array($lastLetter, array_merge(['t', 'n'], self::$vowels))) { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); } return true; } // sti // delete if in R2 if (($position = $this->searchIfInR1(array('sti'))) !== false) { if ($this->inR2($position)) { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); } return true; } } /** * Step 2: possessives. * * Search for the longest among the following suffixes in R1, and perform * the action indicated. * * @return boolean True when something is done. */ private function step2() { // si // delete if not preceded by k if (($position = $this->searchIfInR1(array('si'))) !== false) { $lastLetter = Utf8::substr($this->word, ($position-1), 1); if ($lastLetter !== 'k') { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); return true; } } // ni // delete if (($position = $this->searchIfInR1(array('ni'))) !== false) { $this->word = Utf8::substr($this->word, 0, $position); // if preceded by kse, replace with ksi if ( ($position = $this->search(array('kse'))) !== false) { $this->word = preg_replace('#(kse)$#u', 'ksi', $this->word); } $this->r1(); $this->r2(); return true; } // nsa nsä mme nne // delete if (($position = $this->searchIfInR1(array('nsa', 'nsä', 'mme', 'nne'))) !== false) { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); return true; } // an // delete if preceded by one of ta ssa sta lla lta na if (($position = $this->searchIfInR1(array('an'))) !== false) { $word = Utf8::substr($this->word, 0, $position); $lastThreeLetters = Utf8::substr($word, -3, 3); $lastTwoLetters = Utf8::substr($word, -2, 2); if (in_array($lastThreeLetters, array('ssa', 'sta', 'lla', 'lta'), true) || in_array($lastTwoLetters, array('na', 'ta'), true)) { $this->word = $word; $this->r1(); $this->r2(); return true; } } // än // delete if preceded by one of tä ssä stä llä ltä nä if (($position = $this->searchIfInR1(array('än'))) !== false) { $word = Utf8::substr($this->word, 0, $position); $lastThreeLetters = Utf8::substr($word, -3, 3); $lastTwoLetters = Utf8::substr($word, -2, 2); if (in_array($lastThreeLetters, array('ssä', 'stä', 'llä', 'ltä'), true) || in_array($lastTwoLetters, array('nä', 'tä'), true)) { $this->word = $word; $this->r1(); $this->r2(); return true; } } // en // delete if preceded by one of lle ine if (($position = $this->searchIfInR1(array('en'))) !== false) { $word = Utf8::substr($this->word, 0, $position); if (Utf8::strlen($this->word) > 4) { $lastThreeLetters = Utf8::substr($this->word, -5, 3); if (in_array($lastThreeLetters, array('lle', 'ine'), true)) { $this->word = $word; $this->r1(); $this->r2(); return true; } } } } /** * Step 3: cases * * Search for the longest among the following suffixes in R1, and perform * the action indicated. * * @return boolean True when something is done. */ private function step3() { // hXn // delete if preceded by X, where X is a V other than u (a/han, e/hen etc) foreach (self::$restrictedVowels as $vowel) { if ($vowel === 'u') { continue; } if (($position = $this->searchIfInR1(array('h' . $vowel . 'n'))) !== false) { $lastLetter = Utf8::substr($this->word, $position-1, 1); if ($lastLetter === $vowel) { $this->word = Utf8::substr($this->word, 0, $position); $this->_removedInStep3 = true; $this->r1(); $this->r2(); } return true; } } // siin den tten // delete if preceded by Vi if (($position = $this->searchIfInR1(array('siin', 'den', 'tten'))) !== false) { $lastLetter = Utf8::substr($this->word, ($position-1), 1); if ($lastLetter === 'i') { $nextLastLetter = Utf8::substr($this->word, ($position-2), 1); if (in_array($nextLastLetter, self::$restrictedVowels, true)) { $this->word = Utf8::substr($this->word, 0, $position); $this->_removedInStep3 = true; $this->r1(); $this->r2(); return true; } } } // seen // delete if preceded by LV if (($position = $this->searchIfInR1(array('seen'))) !== false) { $lastLetters = Utf8::substr($this->word, ($position-2), 2); if (in_array($lastLetters, self::$longVowels, true)) { $this->word = Utf8::substr($this->word, 0, $position); $this->_removedInStep3 = true; $this->r1(); $this->r2(); return true; } } // tta ttä // delete if preceded by e if (($position = $this->searchIfInR1(array('tta', 'ttä'))) !== false) { $lastLetter = Utf8::substr($this->word, ($position-1), 1); if ($lastLetter === 'e') { $this->word = Utf8::substr($this->word, 0, $position); $this->_removedInStep3 = true; $this->r1(); $this->r2(); return true; } } // ta tä ssa ssä sta stä lla llä lta ltä lle na nä ksi ine // delete if (($position = $this->searchIfInR1(array('ssa', 'ssä', 'sta', 'stä', 'lla', 'llä', 'lta', 'ltä', 'lle', 'ksi', 'na', 'nä', 'ine', 'ta', 'tä'))) !== false) { $this->word = Utf8::substr($this->word, 0, $position); $this->_removedInStep3 = true; $this->r1(); $this->r2(); return true; } // a ä // delete if preceded by cv if (($position = $this->searchIfInR1(array('a', 'ä'))) !== false) { $lastLetter = Utf8::substr($this->word, ($position-1), 1); $nextLastLetter = Utf8::substr($this->word, ($position-2), 1); if (in_array($lastLetter, self::$vowels, true) && in_array($nextLastLetter, self::$consonants, true)) { $this->word = Utf8::substr($this->word, 0, $position); $this->_removedInStep3 = true; $this->r1(); $this->r2(); return true; } } // n // delete, and if preceded by LV or ie, delete the last vowel if (($position = $this->searchIfInR1(array('n'))) !== false) { $lastLetters = Utf8::substr($this->word, ($position-2), 2); if (in_array($lastLetters, self::$longVowels, true) || $lastLetters === 'ie') { $this->word = Utf8::substr($this->word, 0, $position-1); } else { $this->word = Utf8::substr($this->word, 0, $position); } $this->r1(); $this->r2(); $this->_removedInStep3 = true; return true; } } /** * Step 4: other endings * * Search for the longest among the following suffixes in R2, and perform * the action indicated * * @return boolean True when something is done. */ private function step4() { // mpi mpa mpä mmi mma mmä // delete if not preceded by po if (($position = $this->searchIfInR2(array('mpi', 'mpa', 'mpä', 'mmi', 'mma', 'mmä'))) !== false) { $lastLetters = Utf8::substr($this->word, ($position-2), 2); if ($lastLetters !== 'po') { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); return true; } } // impi impa impä immi imma immä eja ejä // delete if (($position = $this->searchIfInR2(array('impi', 'impa', 'impä', 'immi', 'imma', 'immä', 'eja', 'ejä'))) !== false) { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); return true; } } /** * Step 5: plurals * If an ending was removed in step 3, delete a final i or j if in R1; * otherwise, * if an ending was not removed in step 3, delete a final t in R1 if it * follows a vowel, and, if a t is removed, delete a final mma or imma in * R2, unless the mma is preceded by po. * * @return boolean True when something is done. */ private function step5() { if ($this->_removedInStep3) { if (($position = $this->searchIfInR1(array('i', 'j'))) !== false) { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); return true; } } else { if (($position = $this->searchIfInR1(array('t'))) !== false) { $lastLetter = Utf8::substr($this->word, ($position-1), 1); if (in_array($lastLetter, self::$vowels, true)) { $this->word = Utf8::substr($this->word, 0, $position); $this->r1(); $this->r2(); if (($position2 = $this->searchIfInR2(array('imma'))) !== false) { $this->word = Utf8::substr($this->word, 0, $position2); $this->r1(); $this->r2(); return true; } elseif (($position2 = $this->searchIfInR2(array('mma'))) !== false) { $lastLetters = Utf8::substr($this->word, ($position2-2), 2); if ($lastLetters !== 'po') { $this->word = Utf8::substr($this->word, 0, $position2); $this->r1(); $this->r2(); return true; } } } } } } /** * Step 6: tidying up * * Do in turn steps (a), (b), (c), (d), restricting all tests to the * region R1. */ private function step6() { // a) If R1 ends LV // delete the last letter if (($position = $this->searchIfInR1(self::$longVowels)) !== false) { $this->word = Utf8::substr($this->word, 0, $position+1); $this->r1(); $this->r2(); } // b) If R1 ends cX, c a consonant and X one of a ä e i, // delete the last letter $lastLetter = Utf8::substr($this->r1, -1, 1); $secondToLastLetter = Utf8::substr($this->r1, -2, 1); if (in_array($secondToLastLetter, self::$consonants, true) && in_array($lastLetter, array('a', 'e', 'i', 'ä'))) { $this->word = Utf8::substr($this->word, 0, -1); $this->r1(); $this->r2(); } // c) If R1 ends oj or uj // delete the last letter $twoLastLetters = Utf8::substr($this->r1, -2, 2); if (in_array($twoLastLetters, array('oj', 'uj'))) { $this->word = Utf8::substr($this->word, 0, -1); $this->r1(); $this->r2(); } // d) If R1 ends jo // delete the last letter $twoLastLetters = Utf8::substr($this->r1, -2, 2); if ($twoLastLetters === 'jo') { $this->word = Utf8::substr($this->word, 0, -1); $this->r1(); $this->r2(); } // e) If the word ends with a double consonant followed by zero or more // vowels, remove the last consonant (so eläkk -> eläk, // aatonaatto -> aatonaato) $endVowels = ''; for ($i = Utf8::strlen($this->word) - 1; $i > 0; $i--) { $letter = Utf8::substr($this->word, $i, 1); if (in_array($letter, self::$vowels, true)) { $endVowels = $letter . $endVowels; } else { // check for double consonant $prevLetter = Utf8::substr($this->word, $i-1, 1); if ($prevLetter === $letter) { $this->word = Utf8::substr($this->word, 0, $i) . $endVowels; } break; } } } } PK w�\�$�% % src/Stemmer/Dutch.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/dutch/stemmer.html * @author wamania * */ class Dutch extends Stem { /** * All dutch vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y', 'è'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); // First, remove all umlaut and acute accents. $this->word = UTF8::str_replace( array('ä', 'ë', 'ï', 'ö', 'ü', 'á', 'é', 'í', 'ó', 'ú'), array('a', 'e', 'i', 'o', 'u', 'a', 'e', 'i', 'o', 'u'), $this->word); $this->plainVowels = implode('', self::$vowels); // Put initial y, y after a vowel, and i between vowels into upper case. $this->word = preg_replace('#^y#u', 'Y', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])y#u', '$1Y', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])i(['.$this->plainVowels.'])#u', '$1I$2', $this->word); // R1 and R2 (see the note on R1 and R2) are then defined as in German. // R1 and R2 are first set up in the standard way $this->r1(); $this->r2(); // but then R1 is adjusted so that the region before it contains at least 3 letters. if ($this->r1Index < 3) { $this->r1Index = 3; $this->r1 = UTF8::substr($this->word, 3); } // Do each of steps 1, 2 3 and 4. $this->step1(); $removedE = $this->step2(); $this->step3a(); $this->step3b($removedE); $this->step4(); $this->finish(); return $this->word; } /** * Define a valid s-ending as a non-vowel other than j. * @param string $ending * @return boolean */ private function hasValidSEnding($word) { $lastLetter = UTF8::substr($word, -1, 1); return !in_array($lastLetter, array_merge(self::$vowels, array('j'))); } /** * Define a valid en-ending as a non-vowel, and not gem. * @param string $ending * @return boolean */ private function hasValidEnEnding($word) { $lastLetter = UTF8::substr($word, -1, 1); if (in_array($lastLetter, self::$vowels)) { return false; } $threeLastLetters = UTF8::substr($word, -3, 3); if ($threeLastLetters == 'gem') { return false; } return true; } /** * Define undoubling the ending as removing the last letter if the word ends kk, dd or tt. */ private function unDoubling() { if ($this->search(array('kk', 'dd', 'tt')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } } /** * Step 1 * Search for the longest among the following suffixes, and perform the action indicated */ private function step1() { // heden // replace with heid if in R1 if ( ($position = $this->search(array('heden'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(heden)$#u', 'heid', $this->word); } return true; } // en ene // delete if in R1 and preceded by a valid en-ending, and then undouble the ending if ( ($position = $this->search(array('ene', 'en'))) !== false) { if ($this->inR1($position)) { $word = UTF8::substr($this->word, 0, $position); if ($this->hasValidEnEnding($word)) { $this->word = $word; $this->unDoubling(); } } return true; } // s se // delete if in R1 and preceded by a valid s-ending if ( ($position = $this->search(array('se', 's'))) !== false) { if ($this->inR1($position)) { $word = UTF8::substr($this->word, 0, $position); if ($this->hasValidSEnding($word)) { $this->word = $word; } } return true; } return false; } /** * Step 2 * Delete suffix e if in R1 and preceded by a non-vowel, and then undouble the ending */ private function step2() { if ( ($position = $this->search(array('e'))) !== false) { if ($this->inR1($position)) { $letter = UTF8::substr($this->word, -2, 1); if (!in_array($letter, self::$vowels)) { $this->word = UTF8::substr($this->word, 0, $position); $this->unDoubling(); return true; } } } return false; } /** * Step 3a: heid * delete heid if in R2 and not preceded by c, and treat a preceding en as in step 1(b) */ private function step3a() { if ( ($position = $this->search(array('heid'))) !== false) { if ($this->inR2($position)) { $letter = UTF8::substr($this->word, -5, 1); if ($letter !== 'c') { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position = $this->search(array('en'))) !== false) { if ($this->inR1($position)) { $word = UTF8::substr($this->word, 0, $position); if ($this->hasValidEnEnding($word)) { $this->word = $word; $this->unDoubling(); } } } } } } } /** * Step 3b: d-suffixe * Search for the longest among the following suffixes, and perform the action indicated. */ private function step3b($removedE) { // end ing // delete if in R2 // if preceded by ig, delete if in R2 and not preceded by e, otherwise undouble the ending if ( ($position = $this->search(array('end', 'ing'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->searchIfInR2(array('ig'))) !== false) { $letter = UTF8::substr($this->word, -3, 1); if ($letter !== 'e') { $this->word = UTF8::substr($this->word, 0, $position2); } } else { $this->unDoubling(); } } return true; } // ig // delete if in R2 and not preceded by e if ( ($position = $this->search(array('ig'))) !== false) { if ($this->inR2($position)) { $letter = UTF8::substr($this->word, -3, 1); if ($letter !== 'e') { $this->word = UTF8::substr($this->word, 0, $position); } } return true; } // lijk // delete if in R2, and then repeat step 2 if ( ($position = $this->search(array('lijk'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); $this->step2(); } return true; } // baar // delete if in R2 if ( ($position = $this->search(array('baar'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // bar // delete if in R2 and if step 2 actually removed an e if ( ($position = $this->search(array('bar'))) !== false) { if ($this->inR2($position) && $removedE) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } return false; } /** * Step 4: undouble vowel * If the words ends CVD, where C is a non-vowel, D is a non-vowel other than I, and V is double a, e, o or u, * remove one of the vowels from V (for example, maan -> man, brood -> brod). */ private function step4() { // D is a non-vowel other than I $d = UTF8::substr($this->word, -1, 1); if (in_array($d, array_merge(self::$vowels, array('I')))) { return false; } // V is double a, e, o or u $v = UTF8::substr($this->word, -3, 2); if (!in_array($v, array('aa', 'ee', 'oo', 'uu'))) { return false; } $singleV = UTF8::substr($v, 0, 1); // C is a non-vowel $c = UTF8::substr($this->word, -4, 1); if (in_array($c, self::$vowels)) { return false; } $this->word = UTF8::substr($this->word, 0, -4); $this->word .= $c . $singleV .$d; } /** * Finally * Turn I and Y back into lower case. */ private function finish() { $this->word = UTF8::str_replace(array('I', 'Y'), array('i', 'y'), $this->word); } } PK w�\�yL;.! .! src/Stemmer/Russian.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/russian/stemmer.html * @author wamania * */ class Russian extends Stem { /** * All russian vowels */ protected static $vowels = array('а', 'е', 'и', 'о', 'у', 'ы', 'э', 'ю', 'я'); protected static $perfectiveGerund = array( array('вшись', 'вши', 'в'), array('ывшись', 'ившись', 'ывши', 'ивши', 'ив', 'ыв') ); protected static $adjective = array( 'ыми', 'ими', 'ему', 'ому', 'его', 'ого', 'ее', 'ие', 'ые', 'ое', 'ей', 'ий', 'ый', 'ой', 'ем', 'им', 'ым','ом','их', 'ых', 'ую', 'юю', 'ая', 'яя', 'ою', 'ею' ); protected static $participle = array( array('ем', 'нн', 'вш', 'ющ', 'щ'), array('ивш', 'ывш', 'ующ') ); protected static $reflexive = array('ся', 'сь'); protected static $verb = array( array('ешь', 'нно', 'ете', 'йте', 'ла', 'на', 'ли', 'й', 'л', 'ем', 'н', 'ло', 'но', 'ет', 'ют', 'ны', 'ть'), array( 'уйте', 'ило', 'ыло', 'ено','ила', 'ыла', 'ена', 'ейте', 'ены', 'ить', 'ыть', 'ишь', 'ите', 'или', 'ыли', 'ует', 'уют', 'ей', 'уй', 'ил', 'ыл', 'им', 'ым', 'ен', 'ят', 'ит', 'ыт', 'ую', 'ю' ) ); protected static $noun = array( 'иями', 'ями', 'ами', 'ией', 'иям', 'ием', 'иях', 'ев', 'ов', 'ие', 'ье', 'еи', 'ии', 'ей', 'ой', 'ий', 'ям', 'ем', 'ам', 'ом', 'ах', 'ях', 'ию', 'ью', 'ия', 'ья', 'я', 'а', 'е', 'ы', 'ь', 'и', 'о', 'у', 'й', 'ю' ); protected static $superlative = array('ейше', 'ейш'); protected static $derivational = array('ость', 'ост'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); // R2 is not used: R1 is defined in the same way as in the German stemmer $this->r1(); $this->r2(); $this->rv(); // Do each of steps 1, 2 3 and 4. $this->step1(); $this->step2(); $this->step3(); $this->step4(); return $this->word; } /** * Step 1: Search for a PERFECTIVE GERUND ending. If one is found remove it, and that is then the end of step 1. * Otherwise try and remove a REFLEXIVE ending, and then search in turn for (1) an ADJECTIVAL, (2) a VERB or (3) a NOUN ending. * As soon as one of the endings (1) to (3) is found remove it, and terminate step 1. */ private function step1() { // Search for a PERFECTIVE GERUND ending. // group 1 if ( ($position = $this->searchIfInRv(self::$perfectiveGerund[0])) !== false) { if ( ($this->inRv($position)) && ($this->checkGroup1($position)) ) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } // group 2 if ( ($position = $this->searchIfInRv(self::$perfectiveGerund[1])) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } // Otherwise try and remove a REFLEXIVE ending if ( ($position = $this->searchIfInRv(self::$reflexive)) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); } } // then search in turn for (1) an ADJECTIVAL, (2) a VERB or (3) a NOUN ending. // As soon as one of the endings (1) to (3) is found remove it, and terminate step 1. if ( ($position = $this->searchIfInRv(self::$adjective)) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->search(self::$participle[0])) !== false) { if ( ($this->inRv($position2)) && ($this->checkGroup1($position2)) ) { $this->word = UTF8::substr($this->word, 0, $position2); return true; } } if ( ($position2 = $this->search(self::$participle[1])) !== false) { if ($this->inRv($position2)) { $this->word = UTF8::substr($this->word, 0, $position2); return true; } } return true; } } if ( ($position = $this->searchIfInRv(self::$verb[0])) !== false) { if ( ($this->inRv($position)) && ($this->checkGroup1($position)) ) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } if ( ($position = $this->searchIfInRv(self::$verb[1])) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } if ( ($position = $this->searchIfInRv(self::$noun)) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } return false; } /** * Step 2: If the word ends with и (i), remove it. */ private function step2() { if ( ($position = $this->searchIfInRv(array('и'))) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } return false; } /** * Step 3: Search for a DERIVATIONAL ending in R2 (i.e. the entire ending must lie in R2), * and if one is found, remove it. */ private function step3() { if ( ($position = $this->searchIfInRv(self::$derivational)) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } } /** * Step 4: (1) Undouble н (n), or, (2) if the word ends with a SUPERLATIVE ending, remove it * and undouble н (n), or (3) if the word ends ь (') (soft sign) remove it. */ private function step4() { // (2) if the word ends with a SUPERLATIVE ending, remove it if ( ($position = $this->searchIfInRv(self::$superlative)) !== false) { $this->word = UTF8::substr($this->word, 0, $position); } // (1) Undouble н (n) if ( ($position = $this->searchIfInRv(array('нн'))) !== false) { $this->word = UTF8::substr($this->word, 0, ($position+1)); return true; } // (3) if the word ends ь (') (soft sign) remove it if ( ($position = $this->searchIfInRv(array('ь'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } /** * In any word, RV is the region after the first vowel, or the end of the word if it contains no vowel. */ protected function rv() { $length = UTF8::strlen($this->word); $this->rv = ''; $this->rvIndex = $length; for ($i=0; $i<$length; $i++) { $letter = UTF8::substr($this->word, $i, 1); if (in_array($letter, self::$vowels)) { $this->rv = UTF8::substr($this->word, ($i+1)); $this->rvIndex = $i + 1; return true; } } return false; } /** * group 1 endings must follow а (a) or я (ia) * * @param integer $position * @return boolean */ private function checkGroup1($position) { if (! $this->inRv(($position-1))) { return false; } $letter = UTF8::substr($this->word, ($position - 1), 1); if ($letter == 'а' || $letter == 'я') { return true; } return false; } } PK w�\�� 6�( �( src/Stemmer/Italian.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/italian/stemmer.html * @author wamania * */ class Italian extends Stem { /** * All Italian vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'à', 'è', 'ì', 'ò', 'ù'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->plainVowels = implode('', self::$vowels); $this->word = UTF8::strtolower($word); // First, replace all acute accents by grave accents. $this->word = UTF8::str_replace(array('á', 'é', 'í', 'ó', 'ú'), array('à', 'è', 'ì', 'ò', 'ù'), $this->word); //And, as in French, put u after q, and u, i between vowels into upper case. (See note on vowel marking.) The vowels are then $this->word = preg_replace('#([q])u#u', '$1U', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])u(['.$this->plainVowels.'])#u', '$1U$2', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])i(['.$this->plainVowels.'])#u', '$1I$2', $this->word); $this->rv(); $this->r1(); $this->r2(); $this->step0(); $word = $this->word; $this->step1(); //Do step 2 if no ending was removed by step 1. if ($word == $this->word) { $this->step2(); } $this->step3a(); $this->step3b(); $this->finish(); return $this->word; } /** * Step 0: Attached pronoun */ private function step0() { // Search for the longest among the following suffixes if ( ($position = $this->search(array( 'gliela', 'gliele', 'glieli', 'glielo', 'gliene', 'sene', 'mela', 'mele', 'meli', 'melo', 'mene', 'tela', 'tele', 'teli', 'telo', 'tene', 'cela', 'cele', 'celi', 'celo', 'cene', 'vela', 'vele', 'veli', 'velo', 'vene', 'gli', 'la', 'le', 'li', 'lo', 'mi', 'ne', 'si', 'ti', 'vi', 'ci'))) !== false) { $suffixe = UTF8::substr($this->word, $position); // following one of (in RV) // a $a = array('ando', 'endo'); $a = array_map(function($item) use ($suffixe) { return $item . $suffixe; }, $a); // In case of (a) the suffix is deleted if ($this->searchIfInRv($a) !== false) { $this->word = UTF8::substr($this->word, 0, $position); } //b $b = array('ar', 'er', 'ir'); $b = array_map(function($item) use ($suffixe) { return $item . $suffixe; }, $b); // in case (b) it is replace by e if ($this->searchIfInRv($b) !== false) { $this->word = preg_replace('#('.$suffixe.')$#u', 'e', $this->word); } return true; } return false; } /** * Step 1: Standard suffix removal */ private function step1() { // amente // delete if in R1 // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, // if preceded by os, ic or abil, delete if in R2 if ( ($position = $this->search(array('amente'))) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, if ( ($position2 = $this->searchIfInR2(array('iv'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); if ( ($position3 = $this->searchIfInR2(array('at'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position3); } // if preceded by os, ic or ad, delete if in R2 } elseif ( ($position4 = $this->searchIfInR2(array('os', 'ic', 'abil'))) != false) { $this->word = UTF8::substr($this->word, 0, $position4); } return true; } // delete if in R2 if ( ($position = $this->search(array( 'ibili', 'atrice', 'abili', 'abile', 'ibile', 'atrici', 'mente', 'anza', 'anze', 'iche', 'ichi', 'ismo', 'ismi', 'ista', 'iste', 'isti', 'istà', 'istè', 'istì', 'ante', 'anti', 'ico', 'ici', 'ica', 'ice', 'oso', 'osi', 'osa', 'ose' ))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // azione azioni atore atori // delete if in R2 // if preceded by ic, delete if in R2 if ( ($position = $this->search(array('azione', 'azioni', 'atore', 'atori'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->search(array('ic'))) !== false) { if ($this->inR2($position2)) { $this->word = UTF8::substr($this->word, 0, $position2); } } } return true; } // logia logie // replace with log if in R2 if ( ($position = $this->search(array('logia', 'logie'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(logia|logie)$#u', 'log', $this->word); } return true; } // uzione uzioni usione usioni // replace with u if in R2 if ( ($position = $this->search(array('uzione', 'uzioni', 'usione', 'usioni'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(uzione|uzioni|usione|usioni)$#u', 'u', $this->word); } return true; } // enza enze // replace with ente if in R2 if ( ($position = $this->search(array('enza', 'enze'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(enza|enze)$#u', 'ente', $this->word); } return true; } // amento amenti imento imenti // delete if in RV if ( ($position = $this->search(array('amento', 'amenti', 'imento', 'imenti'))) !== false) { if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // ità // delete if in R2 // if preceded by abil, ic or iv, delete if in R2 if ( ($position = $this->search(array('ità'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } if ( ($position2 = $this->searchIfInR2(array('abil', 'ic', 'iv'))) != false) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } // ivo ivi iva ive // delete if in R2 // if preceded by at, delete if in R2 (and if further preceded by ic, delete if in R2) if ( ($position = $this->search(array('ivo', 'ivi', 'iva', 'ive'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } if ( ($position2 = $this->searchIfInR2(array('at'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); if ( ($position3 = $this->searchIfInR2(array('ic'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position3); } } return true; } return false; } /** * Step 2: Verb suffixes * Search for the longest among the following suffixes in RV, and if found, delete. */ private function step2() { if ( ($position = $this->searchIfInRv(array( 'assimo', 'assero', 'eranno', 'erebbero', 'erebbe', 'eremmo', 'ereste', 'eresti', 'essero', 'iranno', 'irebbero', 'irebbe', 'iremmo', 'iscano', 'ireste', 'iresti', 'iscono', 'issero', 'avamo', 'arono', 'avano', 'avate', 'eremo', 'erete', 'erono', 'evamo', 'evano', 'evate', 'ivamo', 'ivano', 'ivate', 'iremo', 'irete', 'irono', 'ammo', 'ando', 'asse', 'assi', 'emmo', 'enda', 'ende', 'endi', 'endo', 'erai', 'erei', 'Yamo', 'iamo', 'immo', 'irà', 'irai', 'irei', 'isca', 'isce', 'isci', 'isco', 'ano', 'are', 'ata', 'ate', 'ati', 'ato', 'ava', 'avi', 'avo', 'erà', 'ere', 'erò', 'ete', 'eva', 'evi', 'evo', 'ire', 'ita', 'ite', 'iti', 'ito', 'iva', 'ivi', 'ivo', 'ono', 'uta', 'ute', 'uti', 'uto', 'irò', 'ar', 'ir'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); } } /** * Step 3a * Delete a final a, e, i, o, à, è, ì or ò if it is in RV, and a preceding i if it is in RV */ private function step3a() { if ($this->searchIfInRv(array('a', 'e', 'i', 'o', 'à', 'è', 'ì', 'ò')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); if ($this->searchIfInRv(array('i')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } return true; } return false; } /** * Step 3b * Replace final ch (or gh) with c (or g) if in RV (crocch -> crocc) */ private function step3b() { if ($this->searchIfInRv(array('ch')) !== false) { $this->word = preg_replace('#(ch)$#u', 'c', $this->word); } elseif ($this->searchIfInRv(array('gh')) !== false) { $this->word = preg_replace('#(gh)$#u', 'g', $this->word); } } /** * Finally * turn I and U back into lower case */ private function finish() { $this->word = UTF8::str_replace(array('I', 'U'), array('i', 'u'), $this->word); } } PK w�\Qr�� & & src/Stemmer/Portuguese.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/portuguese/stemmer.html * @author wamania * */ class Portuguese extends Stem { /** * All Portuguese vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'á', 'é', 'í', 'ó', 'ú', 'â', 'ê', 'ô'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); $this->word = UTF8::str_replace(array('ã', 'õ'), array('a~', 'o~'), $this->word); $this->rv(); $this->r1(); $this->r2(); $word = $this->word; $this->step1(); if ($word == $this->word) { $this->step2(); } if ($word != $this->word) { $this->step3(); } else { $this->step4(); } $this->step5(); $this->finish(); return $this->word; } /** * Step 1: Standard suffix removal */ private function step1() { // delete if in R2 if ( ($position = $this->search(array( 'amentos', 'imentos', 'adoras', 'adores', 'amento', 'imento', 'adora', 'istas', 'ismos', 'antes', 'ância', 'ezas', 'eza', 'icos', 'icas', 'ismo', 'ável', 'ível', 'ista', 'oso', 'osos', 'osas', 'osa', 'ico', 'ica', 'ador', 'aça~o', 'aço~es' , 'ante'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // logía logías // replace with log if in R2 if ( ($position = $this->search(array('logías', 'logía'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(logías|logía)$#u', 'log', $this->word); } return true; } // ución uciones // replace with u if in R2 if ( ($position = $this->search(array('uciones', 'ución'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(uciones|ución)$#u', 'u', $this->word); } return true; } // ência ências // replace with ente if in R2 if ( ($position = $this->search(array('ências', 'ência'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(ências|ência)$#u', 'ente', $this->word); } return true; } // amente // delete if in R1 // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, // if preceded by os, ic or ad, delete if in R2 if ( ($position = $this->search(array('amente'))) !== false) { // delete if in R1 if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, if ( ($position2 = $this->searchIfInR2(array('iv'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); if ( ($position3 = $this->searchIfInR2(array('at'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position3); } // if preceded by os, ic or ad, delete if in R2 } elseif ( ($position4 = $this->searchIfInR2(array('os', 'ic', 'ad'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position4); } return true; } // mente // delete if in R2 // if preceded by ante, avel or ível, delete if in R2 if ( ($position = $this->search(array('mente'))) !== false) { // delete if in R2 if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by ante, avel or ível, delete if in R2 if ( ($position2 = $this->searchIfInR2(array('ante', 'avel', 'ível'))) != false) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } // idade idades // delete if in R2 // if preceded by abil, ic or iv, delete if in R2 if ( ($position = $this->search(array('idades', 'idade'))) !== false) { // delete if in R2 if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by abil, ic or iv, delete if in R2 if ( ($position2 = $this->searchIfInR2(array('abil', 'ic', 'iv'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } // iva ivo ivas ivos // delete if in R2 // if preceded by at, delete if in R2 if ( ($position = $this->search(array('ivas', 'ivos', 'iva', 'ivo'))) !== false) { // delete if in R2 if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by at, delete if in R2 if ( ($position2 = $this->searchIfInR2(array('at'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); } return true; } // ira iras // replace with ir if in RV and preceded by e if ( ($position = $this->search(array('iras', 'ira'))) !== false) { if ($this->inRv($position)) { $before = $position -1; $letter = UTF8::substr($this->word, $before, 1); if ($letter == 'e') { $this->word = preg_replace('#(iras|ira)$#u', 'ir', $this->word); } } return true; } return false; } /** * Step 2: Verb suffixes * Search for the longest among the following suffixes in RV, and if found, delete. */ private function step2() { if ( ($position = $this->searchIfInRv(array( 'aríamos', 'eríamos', 'iríamos', 'ássemos', 'êssemos', 'íssemos', 'aríeis', 'eríeis', 'iríeis', 'ásseis', 'ésseis', 'ísseis', 'áramos', 'éramos', 'íramos', 'ávamos', 'aremos', 'eremos', 'iremos', 'ariam', 'eriam', 'iriam', 'assem', 'essem', 'issem', 'arias', 'erias', 'irias', 'ardes', 'erdes', 'irdes', 'asses', 'esses', 'isses', 'astes', 'estes', 'istes', 'áreis', 'areis', 'éreis', 'ereis', 'íreis', 'ireis', 'áveis', 'íamos', 'armos', 'ermos', 'irmos', 'aria', 'eria', 'iria', 'asse', 'esse', 'isse', 'aste', 'este', 'iste', 'arei', 'erei', 'irei', 'adas', 'idas', 'aram', 'eram', 'iram', 'avam', 'arem', 'erem', 'irem', 'ando', 'endo', 'indo', 'ara~o', 'era~o', 'ira~o', 'arás', 'aras', 'erás', 'eras', 'irás', 'avas', 'ares', 'eres', 'ires', 'íeis', 'ados', 'idos', 'ámos', 'amos', 'emos', 'imos', 'iras', 'ada', 'ida', 'ará', 'ara', 'erá', 'era', 'irá', 'ava', 'iam', 'ado', 'ido', 'ias', 'ais', 'eis', 'ira', 'ia', 'ei', 'am', 'em', 'ar', 'er', 'ir', 'as', 'es', 'is', 'eu', 'iu', 'ou', ))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } return false; } /** * Step 3: d-suffixes * */ private function step3() { // Delete suffix i if in RV and preceded by c if ($this->searchIfInRv(array('i')) !== false) { $letter = UTF8::substr($this->word, -2, 1); if ($letter == 'c') { $this->word = UTF8::substr($this->word, 0, -1); } return true; } return false; } /** * Step 4 */ private function step4() { // If the word ends with one of the suffixes "os a i o á í ó" in RV, delete it if ( ($position = $this->searchIfInRv(array('os', 'a', 'i', 'o','á', 'í', 'ó'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } return false; } /** * Step 5 */ private function step5() { // If the word ends with one of "e é ê" in RV, delete it, and if preceded by gu (or ci) with the u (or i) in RV, delete the u (or i). if ($this->searchIfInRv(array('e', 'é', 'ê')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); if ( ($position2 = $this->search(array('gu', 'ci'))) !== false) { if ($this->inRv(($position2+1))) { $this->word = UTF8::substr($this->word, 0, -1); } } return true; } else if ($this->search(array('ç')) !== false) { $this->word = preg_replace('#(ç)$#u', 'c', $this->word); return true; } return false; } /** * Finally */ private function finish() { // turn U and Y back into lower case, and remove the umlaut accent from a, o and u. $this->word = UTF8::str_replace(array('a~', 'o~'), array('ã', 'õ'), $this->word); } } PK w�\���t t src/Stemmer/Swedish.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/swedish/stemmer.html * @author wamania * */ class Swedish extends Stem { /** * All swedish vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y', 'ä', 'å', 'ö'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); // R2 is not used: R1 is defined in the same way as in the German stemmer $this->r1(); // then R1 is adjusted so that the region before it contains at least 3 letters. if ($this->r1Index < 3) { $this->r1Index = 3; $this->r1 = UTF8::substr($this->word, 3); } // Do each of steps 1, 2 3 and 4. $this->step1(); $this->step2(); $this->step3(); return $this->word; } /** * Define a valid s-ending as one of * b c d f g h j k l m n o p r t v y * * @param string $ending * @return boolean */ private function hasValidSEnding($word) { $lastLetter = UTF8::substr($word, -1, 1); return in_array($lastLetter, array('b', 'c', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'r', 't', 'v', 'y')); } /** * Step 1 * Search for the longest among the following suffixes in R1, and perform the action indicated. */ private function step1() { // a arna erna heterna orna ad e ade ande arne are aste en anden aren heten // ern ar er heter or as arnas ernas ornas es ades andes ens arens hetens // erns at andet het ast // delete if ( ($position = $this->searchIfInR1(array( 'heterna', 'hetens', 'ornas', 'andes', 'arnas', 'heter', 'ernas', 'anden', 'heten', 'andet', 'arens', 'orna', 'arna', 'erna', 'aren', 'ande', 'ades', 'arne', 'erns', 'aste', 'ade', 'ern', 'het', 'ast', 'are', 'ens', 'or', 'es', 'ad', 'en', 'at', 'ar', 'as', 'er', 'a', 'e' ))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // s // delete if preceded by a valid s-ending if ( ($position = $this->searchIfInR1(array('s'))) !== false) { $word = UTF8::substr($this->word, 0, $position); if ($this->hasValidSEnding($word)) { $this->word = $word; } } } /** * Step 2 * Search for one of the following suffixes in R1, and if found delete the last letter. */ private function step2() { // dd gd nn dt gt kt tt if ($this->searchIfInR1(array('dd', 'gd', 'nn', 'dt', 'gt', 'kt', 'tt')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } } /** * Step 3: * Search for the longest among the following suffixes in R1, and perform the action indicated. */ private function step3() { // lig ig els // delete if ( ($position = $this->searchIfInR1(array('lig', 'ig', 'els'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // löst // replace with lös if ( ($this->searchIfInR1(array('löst'))) !== false) { $this->word = UTF8::substr($this->word, 0, -1); return true; } // fullt // replace with full if ( ($this->searchIfInR1(array('fullt'))) !== false) { $this->word = UTF8::substr($this->word, 0, -1); return true; } } } PK w�\���x�L �L src/Stemmer/French.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/french/stemmer.html * @author wamania * */ class French extends Stem { /** * All french vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y', 'â', 'à', 'ë', 'é', 'ê', 'è', 'ï', 'î', 'ô', 'û', 'ù'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); $this->plainVowels = implode('', self::$vowels); $this->step0(); $this->rv(); $this->r1(); $this->r2(); // to know if step1, 2a or 2b have altered the word $this->originalWord = $this->word; $nextStep = $this->step1(); // Do step 2a if either no ending was removed by step 1, or if one of endings amment, emment, ment, ments was found. if ( ($nextStep == 2) || ($this->originalWord == $this->word) ) { $modified = $this->step2a(); if (!$modified) { $this->step2b(); } } if ($this->word != $this->originalWord) { $this->step3(); } else { $this->step4(); } $this->step5(); $this->step6(); $this->finish(); return $this->word; } /** * Assume the word is in lower case. * Then put into upper case u or i preceded and followed by a vowel, and y preceded or followed by a vowel. * u after q is also put into upper case. For example, * jouer -> joUer * ennuie -> ennuIe * yeux -> Yeux * quand -> qUand */ private function step0() { $this->word = preg_replace('#([q])u#u', '$1U', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])y#u', '$1Y', $this->word); $this->word = preg_replace('#y(['.$this->plainVowels.'])#u', 'Y$1', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])u(['.$this->plainVowels.'])#u', '$1U$2', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])i(['.$this->plainVowels.'])#u', '$1I$2', $this->word); } /** * Step 1 * Search for the longest among the following suffixes, and perform the action indicated. * * @return integer Next step number */ private function step1() { // ance iqUe isme able iste eux ances iqUes ismes ables istes // delete if in R2 if ( ($position = $this->search(array('ances', 'iqUes', 'ismes', 'ables', 'istes', 'ance', 'iqUe','isme', 'able', 'iste', 'eux'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return 3; } // atrice ateur ation atrices ateurs ations // delete if in R2 // if preceded by ic, delete if in R2, else replace by iqU if ( ($position = $this->search(array('atrices', 'ateurs', 'ations', 'atrice', 'ateur', 'ation'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->searchIfInR2(array('ic'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); } else { $this->word = preg_replace('#(ic)$#u', 'iqU', $this->word); } } return 3; } // logie logies // replace with log if in R2 if ( ($position = $this->search(array('logies', 'logie'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(logies|logie)$#u', 'log', $this->word); } return 3; } // usion ution usions utions // replace with u if in R2 if ( ($position = $this->search(array('usions', 'utions', 'usion', 'ution'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(usion|ution|usions|utions)$#u', 'u', $this->word); } return 3; } // ence ences // replace with ent if in R2 if ( ($position = $this->search(array('ences', 'ence'))) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(ence|ences)$#u', 'ent', $this->word); } return 3; } // issement issements // delete if in R1 and preceded by a non-vowel if ( ($position = $this->search(array('issements', 'issement'))) != false) { if ($this->inR1($position)) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if (! in_array($letter, self::$vowels)) { $this->word = UTF8::substr($this->word, 0, $position); } } return 3; } // ement ements // delete if in RV // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, // if preceded by eus, delete if in R2, else replace by eux if in R1, otherwise, // if preceded by abl or iqU, delete if in R2, otherwise, // if preceded by ièr or Ièr, replace by i if in RV if ( ($position = $this->search(array('ements', 'ement'))) !== false) { // delete if in RV if ($this->inRv($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by iv, delete if in R2 (and if further preceded by at, delete if in R2), otherwise, if ( ($position = $this->searchIfInR2(array('iv'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->searchIfInR2(array('at'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position2); } // if preceded by eus, delete if in R2, else replace by eux if in R1, otherwise, } elseif ( ($position = $this->search(array('eus'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } elseif ($this->inR1($position)) { $this->word = preg_replace('#(eus)$#u', 'eux', $this->word); } // if preceded by abl or iqU, delete if in R2, otherwise, } elseif ( ($position = $this->searchIfInR2(array('abl', 'iqU'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); // if preceded by ièr or Ièr, replace by i if in RV } elseif ( ($position = $this->searchIfInRv(array('ièr', 'Ièr'))) !== false) { $this->word = preg_replace('#(ièr|Ièr)$#u', 'i', $this->word); } return 3; } // ité ités // delete if in R2 // if preceded by abil, delete if in R2, else replace by abl, otherwise, // if preceded by ic, delete if in R2, else replace by iqU, otherwise, // if preceded by iv, delete if in R2 if ( ($position = $this->search(array('ités', 'ité'))) !== false) { // delete if in R2 if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } // if preceded by abil, delete if in R2, else replace by abl, otherwise, if ( ($position = $this->search(array('abil'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } else { $this->word = preg_replace('#(abil)$#u', 'abl', $this->word); } // if preceded by ic, delete if in R2, else replace by iqU, otherwise, } elseif ( ($position = $this->search(array('ic'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } else { $this->word = preg_replace('#(ic)$#u', 'iqU', $this->word); } // if preceded by iv, delete if in R2 } elseif ( ($position = $this->searchIfInR2(array('iv'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); } return 3; } // if ive ifs ives // delete if in R2 // if preceded by at, delete if in R2 (and if further preceded by ic, delete if in R2, else replace by iqU) if ( ($position = $this->search(array('ifs', 'ives', 'if', 'ive'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } if ( ($position = $this->searchIfInR2(array('at'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); if ( ($position2 = $this->search(array('ic'))) !== false) { if ($this->inR2($position2)) { $this->word = UTF8::substr($this->word, 0, $position2); } else { $this->word = preg_replace('#(ic)$#u', 'iqU', $this->word); } } } return 3; } // eaux // replace with eau if ( ($position = $this->search(array('eaux'))) !== false) { $this->word = preg_replace('#(eaux)$#u', 'eau', $this->word); return 3; } // aux // replace with al if in R1 if ( ($position = $this->search(array('aux'))) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(aux)$#u', 'al', $this->word); } return 3; } // euse euses // delete if in R2, else replace by eux if in R1 if ( ($position = $this->search(array('euses', 'euse'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } elseif ($this->inR1($position)) { $this->word = preg_replace('#(euses|euse)$#u', 'eux', $this->word); //return 3; } return 3; } // amment // replace with ant if in RV if ( ($position = $this->search(array('amment'))) !== false) { if ($this->inRv($position)) { $this->word = preg_replace('#(amment)$#u', 'ant', $this->word); } return 2; } // emment // replace with ent if in RV if ( ($position = $this->search(array('emment'))) !== false) { if ($this->inRv($position)) { $this->word = preg_replace('#(emment)$#u', 'ent', $this->word); } return 2; } // ment ments // delete if preceded by a vowel in RV if ( ($position = $this->search(array('ments', 'ment'))) != false) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ( $this->inRv($before) && (in_array($letter, self::$vowels)) ) { $this->word = UTF8::substr($this->word, 0, $position); } return 2; } return 2; } /** * Step 2a: Verb suffixes beginning i * In steps 2a and 2b all tests are confined to the RV region. * Search for the longest among the following suffixes and if found, delete if preceded by a non-vowel. * îmes ît îtes i ie ies ir ira irai iraIent irais irait iras irent irez iriez * irions irons iront is issaIent issais issait issant issante issantes issants isse * issent isses issez issiez issions issons it * (Note that the non-vowel itself must also be in RV.) */ private function step2a() { if ( ($position = $this->searchIfInRv(array( 'îmes', 'îtes', 'ît', 'ies', 'ie', 'iraIent', 'irais', 'irait', 'irai', 'iras', 'ira', 'irent', 'irez', 'iriez', 'irions', 'irons', 'iront', 'ir', 'issaIent', 'issais', 'issait', 'issant', 'issantes', 'issante', 'issants', 'issent', 'isses', 'issez', 'isse', 'issiez', 'issions', 'issons', 'is', 'it', 'i'))) !== false) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ( $this->inRv($before) && (!in_array($letter, self::$vowels)) ) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } return false; } /** * Do step 2b if step 2a was done, but failed to remove a suffix. * Step 2b: Other verb suffixes */ private function step2b() { // é ée ées és èrent er era erai eraIent erais erait eras erez eriez erions erons eront ez iez // delete if ( ($position = $this->searchIfInRv(array( 'ées', 'èrent', 'erais', 'erait', 'erai', 'eraIent', 'eras', 'erez', 'eriez', 'erions', 'erons', 'eront', 'era', 'er', 'iez', 'ez','és', 'ée', 'é'))) !== false) { $this->word = UTF8::substr($this->word, 0, $position); return true; } // âmes ât âtes a ai aIent ais ait ant ante antes ants as asse assent asses assiez assions // delete // if preceded by e, delete if ( ($position = $this->searchIfInRv(array( 'âmes', 'âtes', 'ât', 'aIent', 'ais', 'ait', 'antes', 'ante', 'ants', 'ant', 'assent', 'asses', 'assiez', 'assions', 'asse', 'as', 'ai', 'a'))) !== false) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ( $this->inRv($before) && ($letter == 'e') ) { $this->word = UTF8::substr($this->word, 0, $before); } else { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // ions // delete if in R2 if ( ($position = $this->searchIfInRv(array('ions'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } return false; } /** * Step 3: Replace final Y with i or final ç with c */ private function step3() { $this->word = preg_replace('#(Y)$#u', 'i', $this->word); $this->word = preg_replace('#(ç)$#u', 'c', $this->word); } /** * Step 4: Residual suffix */ private function step4() { //If the word ends s, not preceded by a, i, o, u, è or s, delete it. if (preg_match('#[^aiouès]s$#', $this->word)) { $this->word = UTF8::substr($this->word, 0, -1); } // In the rest of step 4, all tests are confined to the RV region. // ion // delete if in R2 and preceded by s or t if ( (($position = $this->searchIfInRv(array('ion'))) !== false) && ($this->inR2($position)) ) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ( $this->inRv($before) && (($letter == 's') || ($letter == 't')) ) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // ier ière Ier Ière // replace with i if ( ($this->searchIfInRv(array('ier', 'ière', 'Ier', 'Ière'))) !== false) { $this->word = preg_replace('#(ier|ière|Ier|Ière)$#u', 'i', $this->word); return true; } // e // delete if ( ($this->searchIfInRv(array('e'))) !== false) { $this->word = UTF8::substr($this->word, 0, -1); return true; } // ë // if preceded by gu, delete if ( ($position = $this->searchIfInRv(array('guë'))) !== false) { if ($this->inRv($position+2)) { $this->word = UTF8::substr($this->word, 0, -1); return true; } } return false; } /** * Step 5: Undouble * If the word ends enn, onn, ett, ell or eill, delete the last letter */ private function step5() { if ($this->search(array('enn', 'onn', 'ett', 'ell', 'eill')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } } /** * Step 6: Un-accent * If the words ends é or è followed by at least one non-vowel, remove the accent from the e. */ private function step6() { $this->word = preg_replace('#(é|è)([^'.$this->plainVowels.']+)$#u', 'e$2', $this->word); } /** * And finally: * Turn any remaining I, U and Y letters in the word back into lower case. */ private function finish() { $this->word = UTF8::str_replace(array('I','U','Y'), array('i', 'u', 'y'), $this->word); } /** * If the word begins with two vowels, RV is the region after the third letter, * otherwise the region after the first vowel not at the beginning of the word, * or the end of the word if these positions cannot be found. * (Exceptionally, par, col or tap, at the begining of a word is also taken to define RV as the region to their right.) */ protected function rv() { $length = UTF8::strlen($this->word); $this->rv = ''; $this->rvIndex = $length; if ($length < 3) { return true; } // If the word begins with two vowels, RV is the region after the third letter $first = UTF8::substr($this->word, 0, 1); $second = UTF8::substr($this->word, 1, 1); if ( (in_array($first, self::$vowels)) && (in_array($second, self::$vowels)) ) { $this->rv = UTF8::substr($this->word, 3); $this->rvIndex = 3; return true; } // (Exceptionally, par, col or tap, at the begining of a word is also taken to define RV as the region to their right.) $begin3 = UTF8::substr($this->word, 0, 3); if (in_array($begin3, array('par', 'col', 'tap'))) { $this->rv = UTF8::substr($this->word, 3); $this->rvIndex = 3; return true; } // otherwise the region after the first vowel not at the beginning of the word, for ($i=1; $i<$length; $i++) { $letter = UTF8::substr($this->word, $i, 1); if (in_array($letter, self::$vowels)) { $this->rv = UTF8::substr($this->word, ($i + 1)); $this->rvIndex = $i + 1; return true; } } return false; } } PK w�\9� �07 07 src/Stemmer/Catalan.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/catalan/stemmer.html * @author Orestes Sanchez Benavente <orestes@estotienearreglo.es> * * * Some fine tuning was necessary in this implementation of the original catalan stemmer algorithm in Snowball: * * 1. Some suffix sets have overlapping items, so here all items are sorted by decreasing size, to * prevent that a shorter suffix will skip a larger one. * * 2. Some alternatives (`or` operator in Snowball) in the original algorithm have * been rearranged to make sure they are applied in the right order. * * Based on the reference Snowball implementation by Israel Olalla of iSOCO */ class Catalan extends Stem { /** * All catalan vowels */ protected static $vowels = ['a', 'e', 'i', 'o', 'u', 'á', 'é', 'í', 'ó', 'ú', 'à', 'è', 'ï', 'ò', 'ü']; protected static $standard_suffix_1a = [ 'allengües', 'ativitats', 'bilitats', 'ionistes', 'ialistes', 'ialismes', 'ativitat', 'atòries', 'isament', 'bilitat', 'ivitats', 'ionisme', 'ionista', 'ialista', 'ialisme', 'íssimes', 'formes', 'ivisme', 'aments', 'nça', 'ificar', 'idores', 'ancies', 'atòria', 'ivitat', 'encies', 'ències', 'atives', 'íssima', 'íssims', 'ictes', 'eries', 'itats', 'itzar', 'ament', 'ments', 'sfera', 'ícies', 'àries', 'cions', 'ístic', 'issos', 'íssem', 'íssiu', 'issem', 'isseu', 'ísseu', 'dores', 'adura', 'ívola', 'ables', 'adors', 'idors', 'adora', 'doras', 'dures', 'ancia', 'toris', 'encia', 'ència', 'ïtats', 'atius', 'ativa', 'ibles', 'asses', 'assos', 'íssim', 'ìssem', 'ìsseu', 'ìssin', 'ismes', 'istes', 'inies', 'íinia', 'ínies', 'trius', 'atge', 'icte', 'ells', 'ella', 'essa', 'eres', 'ines', 'able', 'itat', 'ives', 'ment', 'amen', 'iste', 'aire', 'eria', 'eses', 'esos', 'ícia', 'icis', 'ícis', 'ària', 'alla', 'nces', 'enca', 'issa', 'dora', 'dors', 'bles', 'ívol', 'egar', 'ejar', 'itar', 'ació', 'ants', 'tori', 'ions', 'isam', 'ores', 'aris', 'ïtat', 'atiu', 'ible', 'assa', 'ents', 'imes', 'isme', 'ista', 'inia', 'ites', 'triu', 'oses', 'osos', 'ient', 'otes', 'ell', 'esc', 'ets', 'eta', 'ers', 'ina', 'iva', 'ius', 'fer', 'als', 'era', 'ana', 'esa', 'ici', 'íci', 'ció', 'dor', 'all', 'enc', 'osa', 'ble', 'dís', 'dur', 'ant', 'ats', 'ota', 'ors', 'ora', 'ari', 'uts', 'uds', 'ent', 'ims', 'ima', 'ita', 'ar', 'és', 'ès', 'et', 'ls', 'ió', 'ot', 'al', 'or', 'il', 'ís', 'ós', 'ud', 'ots', 'ó' ]; protected static $attached_pronoun = [ 'selas', 'selos', '\'hi', '\'ho', '\'ls', '-les', '-nos', '\'ns', 'sela', 'selo', '\'s', '\'l', '-ls', '-la', '-li', 'vos', 'nos', '-us', '\'n', '-ns', '\'m', '-me', '-te', '\'t', 'los', 'las', 'les', 'ens', 'se', 'us', '-n', '-m', 'li', 'lo', 'me', 'le', 'la', 'ho', 'hi' ]; protected static $verb_suffixes = [ 'aríamos', 'eríamos', 'iríamos', 'eresseu', 'iéramos', 'iésemos', 'adores', 'aríais', 'aremos', 'eríais', 'eremos', 'iríais', 'iremos', 'ierais', 'ieseis', 'asteis', 'isteis', 'ábamos', 'áramos', 'ásemos', 'isquen', 'esquin', 'esquis', 'esques', 'esquen', 'ïsquen', 'ïsques', 'adora', 'adors', 'arían', 'arías', 'arian', 'arien', 'aries', 'aréis', 'erían', 'erías', 'eréis', 'erass', 'irían', 'irías', 'iréis', 'asseu', 'esseu', 'àsseu', 'àssem', 'àssim', 'àssiu', 'essen', 'esses', 'assen', 'asses', 'assim', 'assiu', 'éssen', 'ésseu', 'éssim', 'éssiu', 'éssem', 'aríem', 'aríeu', 'eixer', 'eixes', 'ieran', 'iesen', 'ieron', 'iendo', 'essin', 'essis', 'assin', 'assis', 'essim', 'èssim', 'èssiu', 'ieras', 'ieses', 'abais', 'arais', 'aseis', 'íamos', 'irien', 'iries', 'irìem', 'irìeu', 'iguem', 'igueu', 'esqui', 'eixin', 'eixis', 'eixen', 'iríem', 'iríeu', 'atges', 'issen', 'isses', 'issin', 'issis', 'issiu', 'issim', 'ïssin', 'íssiu', 'íssim', 'ïssis', 'ïguem', 'ïgueu', 'ïssen', 'ïsses', 'itzeu', 'itzis', 'ador', 'ents', 'udes', 'eren', 'arán', 'arás', 'aria', 'aràs', 'aría', 'arés', 'erán', 'erás', 'ería', 'erau', 'irán', 'irás', 'iría', 'írem', 'íreu', 'aves', 'avem', 'ávem', 'àvem', 'àveu', 'áveu', 'aven', 'ares', 'àrem', 'àreu', 'àren', 'areu', 'aren', 'tzar', 'ides', 'ïdes', 'ades', 'iera', 'iese', 'aste', 'iste', 'aban', 'aran', 'asen', 'aron', 'abas', 'adas', 'idas', 'aras', 'ases', 'íais', 'ados', 'idos', 'amos', 'imos', 'ques', 'iran', 'irem', 'iren', 'ires', 'ireu', 'iria', 'iràs', 'eixi', 'eixo', 'isin', 'isis', 'esca', 'isca', 'ïsca', 'ïren', 'ïres', 'ïxen', 'ïxes', 'ixen', 'ixes', 'inin', 'inis', 'ineu', 'itza', 'itzi', 'itzo', 'itzà', 'arem', 'ent', 'arà', 'ará', 'ara', 'aré', 'erá', 'eré', 'irá', 'iré', 'íeu', 'ies', 'íem', 'ìeu', 'ien', 'uda', 'ava', 'ats', 'ant', 'ïen', 'ams', 'ïes', 'dre', 'eix', 'ïda', 'aba', 'ada', 'ida', 'its', 'ids', 'ase', 'ían', 'ado', 'ido', 'ieu', 'ess', 'ass', 'ías', 'áis', 'ira', 'irà', 'irè', 'sis', 'sin', 'int', 'isc', 'ïsc', 'ïra', 'ïxo', 'ixo', 'ixa', 'ini', 'itz', 'iïn', 're', 'ie', 'er', 'ia', 'at', 'ut', 'au', 'ïm', 'ïu', 'és', 'en', 'es', 'em', 'am', 'ïa', 'it', 'ït', 'ía', 'ad', 'ed', 'id', 'an', 'ió', 'ar', 'ir', 'as', 'ii', 'io', 'ià', 'ís', 'ïx', 'ix', 'in', 'às', 'iï', 'iïs', 'í' ]; protected static $residual_suffixes = [ 'itz', 'it', 'os', 'eu', 'iu', 'is', 'ir', 'ïn', 'ïs', 'a', 'o', 'á', 'à', 'í', 'ó', 'e', 'é', 'i', 's', 'ì', 'ï' ]; /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->word = UTF8::strtolower($word); // Catalan stemmer does not use Rv $this->r1(); $this->r2(); // Step 0: Attached pronoun $this->step0(); $word = $this->word; // Step 1a: Standard suffix $this->step1a(); // Step 1b: Verb suffix // Do step 1b if no ending was removed by step 1a. if ($this->word == $word) { $this->step1b(); } $this->step2(); $this->finish(); return $this->word; } /** * Step 0: Attached pronoun * * Search for the longest among the following suffixes * and delete it in R1. */ private function step0() { if (($position = $this->search(static::$attached_pronoun)) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); return true; } } return false; } /** * Step 1a: Standard suffix */ private function step1a() { // Run step 1a.2 before 1a.1, since they overlap on `cions` (1a.1) and `acions` (1a.2) // // Step 1a.2. // acions ada ades // delete if in R2 if (($position = $this->search(['acions', 'ada', 'ades'])) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // Step 1a.1. // ar atge formes icte ictes ell ells ella és ès esc essa et ets eta eres eries ers ina ines able ls ió itat // itats itzar iva ives ivisme ius fer ment amen ament aments ments ot sfera al als era ana iste aire eria esa // eses esos or ícia ícies icis ici íci ícis ària àries alla ció cions n{c}a nces ó dor all il ístic enc enca // ís issa issos íssem íssiu issem isseu ísseu ós osa dora dores dors adura ble bles ívol ívola dís egar ejar // ificar itar ables adors idores idors adora ació doras dur dures alleng{u"}es ant ants ancia ancies atòria // atòries tori toris ats ions ota isam ors ora ores isament bilitat bilitats ivitat ivitats ari aris ionisme // ionista ionistes ialista ialistes ialisme ialismes ud uts uds encia encies ència ències ïtat ïtats atiu // atius atives ativa ativitat ativitats ible ibles assa asses assos ent ents íssim íssima íssims íssimes // ìssem ìsseu ìssin ims ima imes isme ista ismes istes inia inies íinia ínies ita ites triu trius oses osos // ient otes ots // // delete if in R1 if (($position = $this->search(self::$standard_suffix_1a)) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // Step 1a.3. // logía logíes logia logies logi logis lógica lógics lógiques // replace with log if in R2 if (($position = $this->search( ['logía', 'logíes', 'logia', 'logies', 'logis', 'lógica', 'lógics', 'lógiques', 'logi'] )) !== false) { if ($this->inR2($position)) { $this->word = preg_replace( '#(logía|logíes|logia|logies|logis|lógica|lógics|lógiques|logi)$#u', 'log', $this->word ); } return true; } // Step 1a.4. // ic ica ics iques // replace with ic if in R2 if (($position = $this->search(['ics', 'ica', 'iques', 'ic'])) !== false) { if ($this->inR2($position)) { $this->word = preg_replace('#(ics|ica|iques|ic)$#u', 'ic', $this->word); } return true; } // Step 1a.5. // quíssims quíssimes quíssima quíssim // replace with c if in R1 if (($position = $this->search(['quíssima', 'quíssims', 'quíssimes', 'quíssim'])) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(quíssima|quíssims|quíssimes|quíssim)$#u', 'c', $this->word); } return true; } return false; } /** * Step 1b: Verb suffixes * Search for the longest among the following suffixes in r1 and r2, and * perform the action indicated. */ private function step1b() { // Step 1b.1 // // aríamos eríamos iríamos eresseu iéramos iésemos adores aríais aremos eríais // eremos iríais iremos ierais ieseis asteis isteis ábamos áramos ásemos isquen // esquin esquis esques esquen ïsquen ïsques adora adors arían arías arian // arien aries aréis erían erías eréis erass irían irías iréis asseu esseu // àsseu àssem àssim àssiu essen esses assen asses assim assiu éssen ésseu // éssim éssiu éssem aríem aríeu eixer eixes ieran iesen ieron iendo essin // essis assin assis essim èssim èssiu ieras ieses abais arais aseis íamos // irien iries irìem irìeu iguem igueu esqui eixin eixis eixen iríem iríeu // atges issen isses issin issis issiu issim ïssin íssiu íssim ïssis ïguem // ïgueu ïssen ïsses itzeu itzis ador ents udes eren arán arás aria aràs // aría arés erán erás ería erau irán irás iría írem íreu aves avem ávem // àvem àveu áveu aven ares àrem àreu àren areu aren tzar ides ïdes ades // iera iese aste iste aban aran asen aron abas adas idas aras ases íais // ados idos amos imos ques iran irem iren ires ireu iria iràs eixi eixo // isin isis esca isca ïsca ïren ïres ïxen ïxes ixen ixes inin inis ineu // itza itzi itzo itzà arem ent arà ará ara aré erá eré irá iré íeu // ies íem ìeu ien uda ava ats ant ïen ams ïes dre eix ïda aba ada // ida its ids ase ían ado ido ieu ess ass ías áis ira irà irè sis // sin int isc ïsc ïra ïxo ixo ixa ini itz iïn re ie er ia at ut // au ïm ïu és en es em am ïa it ït ía ad ed id an ió ar // ir as ii io ià ís ïx ix in às iï iïs í // delete if in R1 if (($position = $this->search(static::$verb_suffixes)) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // Step 1b.2 // ando // delete if in R2 if (($position = $this->search(['ando'])) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } return false; } /** * Step 2: residual suffix * Search for the longest among the following suffixes in R1, and perform * the action indicated. */ private function step2() { // Step 2.1 // residual suffix // delete if in R1 if (($position = $this->search(static::$residual_suffixes)) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // Step 2.2 // iqu // replace with ic if in R1 if (($position = $this->search(['iqu'])) !== false) { if ($this->inR1($position)) { $this->word = preg_replace('#(iqu)$#u', 'ic', $this->word); } return true; } return false; } /** * And finally: * Remove accents and l aggeminades */ private function finish() { $this->word = UTF8::str_replace( ['á', 'é', 'í', 'ó', 'ú', 'à', 'è', 'ì', 'ò', 'ï', 'ü', '·'], ['a', 'e', 'i', 'o', 'u', 'a', 'e', 'i', 'o', 'i', 'u', '.'], $this->word ); } } PK w�\�D+�e e src/Stemmer/German.phpnu �[��� <?php namespace Wamania\Snowball\Stemmer; use voku\helper\UTF8; /** * * @link http://snowball.tartarus.org/algorithms/german/stemmer.html * @author wamania * */ class German extends Stem { /** * All German vowels */ protected static $vowels = array('a', 'e', 'i', 'o', 'u', 'y', 'ä', 'ö', 'ü'); protected static $sEndings = array('b', 'd', 'f', 'g', 'h', 'k', 'l', 'm', 'n', 'r' ,'t'); protected static $stEndings = array('b', 'd', 'f', 'g', 'h', 'k', 'l', 'm', 'n', 't'); /** * {@inheritdoc} */ public function stem($word) { // we do ALL in UTF-8 if (!UTF8::is_utf8($word)) { throw new \Exception('Word must be in UTF-8'); } $this->plainVowels = implode('', self::$vowels); $this->word = UTF8::strtolower($word); // First, replace ß by ss $this->word = UTF8::str_replace('ß', 'ss', $this->word); // put u and y between vowels into upper case $this->word = preg_replace('#(['.$this->plainVowels.'])y(['.$this->plainVowels.'])#u', '$1Y$2', $this->word); $this->word = preg_replace('#(['.$this->plainVowels.'])u(['.$this->plainVowels.'])#u', '$1U$2', $this->word); // R1 and R2 are first set up in the standard way $this->r1(); $this->r2(); // but then R1 is adjusted so that the region before it contains at least 3 letters. if ($this->r1Index < 3) { $this->r1Index = 3; $this->r1 = UTF8::substr($this->word, 3); } $this->step1(); $this->step2(); $this->step3(); $this->finish(); return $this->word; } /** * Step 1 */ private function step1() { // delete if in R1 if ( ($position = $this->search(array('em', 'ern', 'er'))) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // delete if in R1 if ( ($position = $this->search(array('es', 'en', 'e'))) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); //If an ending of group (b) is deleted, and the ending is preceded by niss, delete the final s if ($this->search(array('niss')) !== false) { $this->word = UTF8::substr($this->word, 0, -1); } } return true; } // s (preceded by a valid s-ending) if ( ($position = $this->search(array('s'))) !== false) { if ($this->inR1($position)) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if (in_array($letter, self::$sEndings)) { $this->word = UTF8::substr($this->word, 0, $position); } } return true; } return false; } /** * Step 2 */ private function step2() { // en er est // delete if in R1 if ( ($position = $this->search(array('en', 'er', 'est'))) !== false) { if ($this->inR1($position)) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // st (preceded by a valid st-ending, itself preceded by at least 3 letters) // delete if in R1 if ( ($position = $this->search(array('st'))) !== false) { if ($this->inR1($position)) { $before = $position - 1; if ($before >= 3) { $letter = UTF8::substr($this->word, $before, 1); if (in_array($letter, self::$stEndings)) { $this->word = UTF8::substr($this->word, 0, $position); } } } return true; } return false; } /** * Step 3: d-suffixes */ private function step3() { // end ung // delete if in R2 // if preceded by ig, delete if in R2 and not preceded by e if ( ($position = $this->search(array('end', 'ung'))) !== false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } if ( ($position2 = $this->search(array('ig'))) !== false) { $before = $position2 - 1; $letter = UTF8::substr($this->word, $before, 1); if ( ($this->inR2($position2)) && ($letter != 'e') ) { $this->word = UTF8::substr($this->word, 0, $position2); } } return true; } // ig ik isch // delete if in R2 and not preceded by e if ( ($position = $this->search(array('ig', 'ik', 'isch'))) !== false) { $before = $position - 1; $letter = UTF8::substr($this->word, $before, 1); if ( ($this->inR2($position)) && ($letter != 'e') ) { $this->word = UTF8::substr($this->word, 0, $position); } return true; } // lich heit // delete if in R2 // if preceded by er or en, delete if in R1 if ( ($position = $this->search(array('lich', 'heit'))) != false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } if ( ($position2 = $this->search(array('er', 'en'))) !== false) { if ($this->inR1($position2)) { $this->word = UTF8::substr($this->word, 0, $position2); } } return true; } // keit // delete if in R2 // if preceded by lich or ig, delete if in R2 if ( ($position = $this->search(array('keit'))) != false) { if ($this->inR2($position)) { $this->word = UTF8::substr($this->word, 0, $position); } if ( ($position2 = $this->search(array('lich', 'ig'))) !== false) { if ($this->inR2($position2)) { $this->word = UTF8::substr($this->word, 0, $position2); } } return true; } return false; } /** * Finally */ private function finish() { // turn U and Y back into lower case, and remove the umlaut accent from a, o and u. $this->word = UTF8::str_replace(array('U', 'Y', 'ä', 'ü', 'ö'), array('u', 'y', 'a', 'u', 'o'), $this->word); } } PK w�\m� T T src/NotFoundException.phpnu �[��� <?php namespace Wamania\Snowball; class NotFoundException extends \Exception { } PK w�\ �D� � src/StemmerManager.phpnu �[��� <?php namespace Wamania\Snowball; class StemmerManager { /** @var array */ private $stemmers; public function __construct() { $this->stemmers = []; } /** * @throws NotFoundException */ public function stem(string $word, string $isoCode): string { if (!isset($this->stemmers[$isoCode])) { $this->stemmers[$isoCode] = StemmerFactory::create($isoCode); } return $this->stemmers[$isoCode]->stem($word); } } PK w�\��B2 2 LICENSEnu �[��� The MIT License (MIT) Copyright (c) 2016 wamania Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. PK w�\u� �c c src/StemmerFactory.phpnu �[��� PK w�\�% �9 9 � src/Stemmer/Norwegian.phpnu �[��� PK w�\˩�� I I + src/Stemmer/English.phpnu �[��� PK w�\��J J r` src/Stemmer/Stemmer.phpnu �[��� PK w�\T�Lj� � b src/Stemmer/Danish.phpnu �[��� PK w�\�� �,3 ,3 ;t src/Stemmer/Romanian.phpnu �[��� PK w�\�(+1 +1 �� src/Stemmer/Spanish.phpnu �[��� PK w�\�a��� � !� src/Stemmer/Stem.phpnu �[��� PK w�\Q�Wr�< �< K� src/Stemmer/Finnish.phpnu �[��� PK w�\�$�% % V- src/Stemmer/Dutch.phpnu �[��� PK w�\�yL;.! .! �R src/Stemmer/Russian.phpnu �[��� PK w�\�� 6�( �( t src/Stemmer/Italian.phpnu �[��� PK w�\Qr�� & & C� src/Stemmer/Portuguese.phpnu �[��� PK w�\���t t �� src/Stemmer/Swedish.phpnu �[��� PK w�\���x�L �L d� src/Stemmer/French.phpnu �[��� PK w�\9� �07 07 E src/Stemmer/Catalan.phpnu �[��� PK w�\�D+�e e �W src/Stemmer/German.phpnu �[��� PK w�\m� T T gr src/NotFoundException.phpnu �[��� PK w�\ �D� � s src/StemmerManager.phpnu �[��� PK w�\��B2 2 <u LICENSEnu �[��� PK � �y
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