+++ /dev/null
-package org.apache.lucene.analysis.el;
-
-import org.apache.lucene.analysis.CharArraySet;
-import org.apache.lucene.util.Version;
-
-import java.util.Arrays;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * A stemmer for Greek words, according to: <i>Development of a Stemmer for the
- * Greek Language.</i> Georgios Ntais
- * <p>
- * NOTE: Input is expected to be casefolded for Greek (including folding of final
- * sigma to sigma), and with diacritics removed. This can be achieved with
- * either {@link GreekLowerCaseFilter} or ICUFoldingFilter.
- * @lucene.experimental
- */
-public class GreekStemmer {
- public int stem(char s[], int len) {
- if (len < 4) // too short
- return len;
-
- final int origLen = len;
- // "short rules": if it hits one of these, it skips the "long list"
- len = rule0(s, len);
- len = rule1(s, len);
- len = rule2(s, len);
- len = rule3(s, len);
- len = rule4(s, len);
- len = rule5(s, len);
- len = rule6(s, len);
- len = rule7(s, len);
- len = rule8(s, len);
- len = rule9(s, len);
- len = rule10(s, len);
- len = rule11(s, len);
- len = rule12(s, len);
- len = rule13(s, len);
- len = rule14(s, len);
- len = rule15(s, len);
- len = rule16(s, len);
- len = rule17(s, len);
- len = rule18(s, len);
- len = rule19(s, len);
- len = rule20(s, len);
- // "long list"
- if (len == origLen)
- len = rule21(s, len);
-
- return rule22(s, len);
- }
-
- private int rule0(char s[], int len) {
- if (len > 9 && (endsWith(s, len, "καθεστωτοσ")
- || endsWith(s, len, "καθεστωτων")))
- return len - 4;
-
- if (len > 8 && (endsWith(s, len, "γεγονοτοσ")
- || endsWith(s, len, "γεγονοτων")))
- return len - 4;
-
- if (len > 8 && endsWith(s, len, "καθεστωτα"))
- return len - 3;
-
- if (len > 7 && (endsWith(s, len, "τατογιου")
- || endsWith(s, len, "τατογιων")))
- return len - 4;
-
- if (len > 7 && endsWith(s, len, "γεγονοτα"))
- return len - 3;
-
- if (len > 7 && endsWith(s, len, "καθεστωσ"))
- return len - 2;
-
- if (len > 6 && (endsWith(s, len, "σκαγιου"))
- || endsWith(s, len, "σκαγιων")
- || endsWith(s, len, "ολογιου")
- || endsWith(s, len, "ολογιων")
- || endsWith(s, len, "κρεατοσ")
- || endsWith(s, len, "κρεατων")
- || endsWith(s, len, "περατοσ")
- || endsWith(s, len, "περατων")
- || endsWith(s, len, "τερατοσ")
- || endsWith(s, len, "τερατων"))
- return len - 4;
-
- if (len > 6 && endsWith(s, len, "τατογια"))
- return len - 3;
-
- if (len > 6 && endsWith(s, len, "γεγονοσ"))
- return len - 2;
-
- if (len > 5 && (endsWith(s, len, "φαγιου")
- || endsWith(s, len, "φαγιων")
- || endsWith(s, len, "σογιου")
- || endsWith(s, len, "σογιων")))
- return len - 4;
-
- if (len > 5 && (endsWith(s, len, "σκαγια")
- || endsWith(s, len, "ολογια")
- || endsWith(s, len, "κρεατα")
- || endsWith(s, len, "περατα")
- || endsWith(s, len, "τερατα")))
- return len - 3;
-
- if (len > 4 && (endsWith(s, len, "φαγια")
- || endsWith(s, len, "σογια")
- || endsWith(s, len, "φωτοσ")
- || endsWith(s, len, "φωτων")))
- return len - 3;
-
- if (len > 4 && (endsWith(s, len, "κρεασ")
- || endsWith(s, len, "περασ")
- || endsWith(s, len, "τερασ")))
- return len - 2;
-
- if (len > 3 && endsWith(s, len, "φωτα"))
- return len - 2;
-
- if (len > 2 && endsWith(s, len, "φωσ"))
- return len - 1;
-
- return len;
- }
-
- private int rule1(char s[], int len) {
- if (len > 4 && (endsWith(s, len, "αδεσ") || endsWith(s, len, "αδων"))) {
- len -= 4;
- if (!(endsWith(s, len, "οκ") ||
- endsWith(s, len, "μαμ") ||
- endsWith(s, len, "μαν") ||
- endsWith(s, len, "μπαμπ") ||
- endsWith(s, len, "πατερ") ||
- endsWith(s, len, "γιαγι") ||
- endsWith(s, len, "νταντ") ||
- endsWith(s, len, "κυρ") ||
- endsWith(s, len, "θει") ||
- endsWith(s, len, "πεθερ")))
- len += 2; // add back -αδ
- }
- return len;
- }
-
- private int rule2(char s[], int len) {
- if (len > 4 && (endsWith(s, len, "εδεσ") || endsWith(s, len, "εδων"))) {
- len -= 4;
- if (endsWith(s, len, "οπ") ||
- endsWith(s, len, "ιπ") ||
- endsWith(s, len, "εμπ") ||
- endsWith(s, len, "υπ") ||
- endsWith(s, len, "γηπ") ||
- endsWith(s, len, "δαπ") ||
- endsWith(s, len, "κρασπ") ||
- endsWith(s, len, "μιλ"))
- len += 2; // add back -εδ
- }
- return len;
- }
-
- private int rule3(char s[], int len) {
- if (len > 5 && (endsWith(s, len, "ουδεσ") || endsWith(s, len, "ουδων"))) {
- len -= 5;
- if (endsWith(s, len, "αρκ") ||
- endsWith(s, len, "καλιακ") ||
- endsWith(s, len, "πεταλ") ||
- endsWith(s, len, "λιχ") ||
- endsWith(s, len, "πλεξ") ||
- endsWith(s, len, "σκ") ||
- endsWith(s, len, "σ") ||
- endsWith(s, len, "φλ") ||
- endsWith(s, len, "φρ") ||
- endsWith(s, len, "βελ") ||
- endsWith(s, len, "λουλ") ||
- endsWith(s, len, "χν") ||
- endsWith(s, len, "σπ") ||
- endsWith(s, len, "τραγ") ||
- endsWith(s, len, "φε"))
- len += 3; // add back -ουδ
- }
- return len;
- }
-
- private static final CharArraySet exc4 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("θ", "δ", "ελ", "γαλ", "ν", "π", "ιδ", "παρ"),
- false);
-
- private int rule4(char s[], int len) {
- if (len > 3 && (endsWith(s, len, "εωσ") || endsWith(s, len, "εων"))) {
- len -= 3;
- if (exc4.contains(s, 0, len))
- len++; // add back -ε
- }
- return len;
- }
-
- private int rule5(char s[], int len) {
- if (len > 2 && endsWith(s, len, "ια")) {
- len -= 2;
- if (endsWithVowel(s, len))
- len++; // add back -ι
- } else if (len > 3 && (endsWith(s, len, "ιου") || endsWith(s, len, "ιων"))) {
- len -= 3;
- if (endsWithVowel(s, len))
- len++; // add back -ι
- }
- return len;
- }
-
- private static final CharArraySet exc6 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("αλ", "αδ", "ενδ", "αμαν", "αμμοχαλ", "ηθ", "ανηθ",
- "αντιδ", "φυσ", "βρωμ", "γερ", "εξωδ", "καλπ", "καλλιν", "καταδ",
- "μουλ", "μπαν", "μπαγιατ", "μπολ", "μποσ", "νιτ", "ξικ", "συνομηλ",
- "πετσ", "πιτσ", "πικαντ", "πλιατσ", "ποστελν", "πρωτοδ", "σερτ",
- "συναδ", "τσαμ", "υποδ", "φιλον", "φυλοδ", "χασ"),
- false);
-
- private int rule6(char s[], int len) {
- boolean removed = false;
- if (len > 3 && (endsWith(s, len, "ικα") || endsWith(s, len, "ικο"))) {
- len -= 3;
- removed = true;
- } else if (len > 4 && (endsWith(s, len, "ικου") || endsWith(s, len, "ικων"))) {
- len -= 4;
- removed = true;
- }
-
- if (removed) {
- if (endsWithVowel(s, len) || exc6.contains(s, 0, len))
- len += 2; // add back -ικ
- }
- return len;
- }
-
- private static final CharArraySet exc7 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("αναπ", "αποθ", "αποκ", "αποστ", "βουβ", "ξεθ", "ουλ",
- "πεθ", "πικρ", "ποτ", "σιχ", "χ"),
- false);
-
- private int rule7(char s[], int len) {
- if (len == 5 && endsWith(s, len, "αγαμε"))
- return len - 1;
-
- if (len > 7 && endsWith(s, len, "ηθηκαμε"))
- len -= 7;
- else if (len > 6 && endsWith(s, len, "ουσαμε"))
- len -= 6;
- else if (len > 5 && (endsWith(s, len, "αγαμε") ||
- endsWith(s, len, "ησαμε") ||
- endsWith(s, len, "ηκαμε")))
- len -= 5;
-
- if (len > 3 && endsWith(s, len, "αμε")) {
- len -= 3;
- if (exc7.contains(s, 0, len))
- len += 2; // add back -αμ
- }
-
- return len;
- }
-
- private static final CharArraySet exc8a = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("τρ", "τσ"),
- false);
-
- private static final CharArraySet exc8b = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("βετερ", "βουλκ", "βραχμ", "γ", "δραδουμ", "θ", "καλπουζ",
- "καστελ", "κορμορ", "λαοπλ", "μωαμεθ", "μ", "μουσουλμ", "ν", "ουλ",
- "π", "πελεκ", "πλ", "πολισ", "πορτολ", "σαρακατσ", "σουλτ",
- "τσαρλατ", "ορφ", "τσιγγ", "τσοπ", "φωτοστεφ", "χ", "ψυχοπλ", "αγ",
- "ορφ", "γαλ", "γερ", "δεκ", "διπλ", "αμερικαν", "ουρ", "πιθ",
- "πουριτ", "σ", "ζωντ", "ικ", "καστ", "κοπ", "λιχ", "λουθηρ", "μαιντ",
- "μελ", "σιγ", "σπ", "στεγ", "τραγ", "τσαγ", "φ", "ερ", "αδαπ",
- "αθιγγ", "αμηχ", "ανικ", "ανοργ", "απηγ", "απιθ", "ατσιγγ", "βασ",
- "βασκ", "βαθυγαλ", "βιομηχ", "βραχυκ", "διατ", "διαφ", "ενοργ",
- "θυσ", "καπνοβιομηχ", "καταγαλ", "κλιβ", "κοιλαρφ", "λιβ",
- "μεγλοβιομηχ", "μικροβιομηχ", "νταβ", "ξηροκλιβ", "ολιγοδαμ",
- "ολογαλ", "πενταρφ", "περηφ", "περιτρ", "πλατ", "πολυδαπ", "πολυμηχ",
- "στεφ", "ταβ", "τετ", "υπερηφ", "υποκοπ", "χαμηλοδαπ", "ψηλοταβ"),
- false);
-
- private int rule8(char s[], int len) {
- boolean removed = false;
-
- if (len > 8 && endsWith(s, len, "ιουντανε")) {
- len -= 8;
- removed = true;
- } else if (len > 7 && endsWith(s, len, "ιοντανε") ||
- endsWith(s, len, "ουντανε") ||
- endsWith(s, len, "ηθηκανε")) {
- len -= 7;
- removed = true;
- } else if (len > 6 && endsWith(s, len, "ιοτανε") ||
- endsWith(s, len, "οντανε") ||
- endsWith(s, len, "ουσανε")) {
- len -= 6;
- removed = true;
- } else if (len > 5 && endsWith(s, len, "αγανε") ||
- endsWith(s, len, "ησανε") ||
- endsWith(s, len, "οτανε") ||
- endsWith(s, len, "ηκανε")) {
- len -= 5;
- removed = true;
- }
-
- if (removed && exc8a.contains(s, 0, len)) {
- // add -αγαν (we removed > 4 chars so its safe)
- len += 4;
- s[len - 4] = 'α';
- s[len - 3] = 'γ';
- s[len - 2] = 'α';
- s[len - 1] = 'ν';
- }
-
- if (len > 3 && endsWith(s, len, "ανε")) {
- len -= 3;
- if (endsWithVowelNoY(s, len) || exc8b.contains(s, 0, len)) {
- len += 2; // add back -αν
- }
- }
-
- return len;
- }
-
- private static final CharArraySet exc9 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("αβαρ", "βεν", "εναρ", "αβρ", "αδ", "αθ", "αν", "απλ",
- "βαρον", "ντρ", "σκ", "κοπ", "μπορ", "νιφ", "παγ", "παρακαλ", "σερπ",
- "σκελ", "συρφ", "τοκ", "υ", "δ", "εμ", "θαρρ", "θ"),
- false);
-
- private int rule9(char s[], int len) {
- if (len > 5 && endsWith(s, len, "ησετε"))
- len -= 5;
-
- if (len > 3 && endsWith(s, len, "ετε")) {
- len -= 3;
- if (exc9.contains(s, 0, len) ||
- endsWithVowelNoY(s, len) ||
- endsWith(s, len, "οδ") ||
- endsWith(s, len, "αιρ") ||
- endsWith(s, len, "φορ") ||
- endsWith(s, len, "ταθ") ||
- endsWith(s, len, "διαθ") ||
- endsWith(s, len, "σχ") ||
- endsWith(s, len, "ενδ") ||
- endsWith(s, len, "ευρ") ||
- endsWith(s, len, "τιθ") ||
- endsWith(s, len, "υπερθ") ||
- endsWith(s, len, "ραθ") ||
- endsWith(s, len, "ενθ") ||
- endsWith(s, len, "ροθ") ||
- endsWith(s, len, "σθ") ||
- endsWith(s, len, "πυρ") ||
- endsWith(s, len, "αιν") ||
- endsWith(s, len, "συνδ") ||
- endsWith(s, len, "συν") ||
- endsWith(s, len, "συνθ") ||
- endsWith(s, len, "χωρ") ||
- endsWith(s, len, "πον") ||
- endsWith(s, len, "βρ") ||
- endsWith(s, len, "καθ") ||
- endsWith(s, len, "ευθ") ||
- endsWith(s, len, "εκθ") ||
- endsWith(s, len, "νετ") ||
- endsWith(s, len, "ρον") ||
- endsWith(s, len, "αρκ") ||
- endsWith(s, len, "βαρ") ||
- endsWith(s, len, "βολ") ||
- endsWith(s, len, "ωφελ")) {
- len += 2; // add back -ετ
- }
- }
-
- return len;
- }
-
- private int rule10(char s[], int len) {
- if (len > 5 && (endsWith(s, len, "οντασ") || endsWith(s, len, "ωντασ"))) {
- len -= 5;
- if (len == 3 && endsWith(s, len, "αρχ")) {
- len += 3; // add back *ντ
- s[len - 3] = 'ο';
- }
- if (endsWith(s, len, "κρε")) {
- len += 3; // add back *ντ
- s[len - 3] = 'ω';
- }
- }
-
- return len;
- }
-
- private int rule11(char s[], int len) {
- if (len > 6 && endsWith(s, len, "ομαστε")) {
- len -= 6;
- if (len == 2 && endsWith(s, len, "ον")) {
- len += 5; // add back -ομαστ
- }
- } else if (len > 7 && endsWith(s, len, "ιομαστε")) {
- len -= 7;
- if (len == 2 && endsWith(s, len, "ον")) {
- len += 5;
- s[len - 5] = 'ο';
- s[len - 4] = 'μ';
- s[len - 3] = 'α';
- s[len - 2] = 'σ';
- s[len - 1] = 'τ';
- }
- }
- return len;
- }
-
- private static final CharArraySet exc12a = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("π", "απ", "συμπ", "ασυμπ", "ακαταπ", "αμεταμφ"),
- false);
-
- private static final CharArraySet exc12b = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("αλ", "αρ", "εκτελ", "ζ", "μ", "ξ", "παρακαλ", "αρ", "προ", "νισ"),
- false);
-
- private int rule12(char s[], int len) {
- if (len > 5 && endsWith(s, len, "ιεστε")) {
- len -= 5;
- if (exc12a.contains(s, 0, len))
- len += 4; // add back -ιεστ
- }
-
- if (len > 4 && endsWith(s, len, "εστε")) {
- len -= 4;
- if (exc12b.contains(s, 0, len))
- len += 3; // add back -εστ
- }
-
- return len;
- }
-
- private static final CharArraySet exc13 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("διαθ", "θ", "παρακαταθ", "προσθ", "συνθ"),
- false);
-
- private int rule13(char s[], int len) {
- if (len > 6 && endsWith(s, len, "ηθηκεσ")) {
- len -= 6;
- } else if (len > 5 && (endsWith(s, len, "ηθηκα") || endsWith(s, len, "ηθηκε"))) {
- len -= 5;
- }
-
- boolean removed = false;
-
- if (len > 4 && endsWith(s, len, "ηκεσ")) {
- len -= 4;
- removed = true;
- } else if (len > 3 && (endsWith(s, len, "ηκα") || endsWith(s, len, "ηκε"))) {
- len -= 3;
- removed = true;
- }
-
- if (removed && (exc13.contains(s, 0, len)
- || endsWith(s, len, "σκωλ")
- || endsWith(s, len, "σκουλ")
- || endsWith(s, len, "ναρθ")
- || endsWith(s, len, "σφ")
- || endsWith(s, len, "οθ")
- || endsWith(s, len, "πιθ"))) {
- len += 2; // add back the -ηκ
- }
-
- return len;
- }
-
- private static final CharArraySet exc14 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("φαρμακ", "χαδ", "αγκ", "αναρρ", "βρομ", "εκλιπ", "λαμπιδ",
- "λεχ", "μ", "πατ", "ρ", "λ", "μεδ", "μεσαζ", "υποτειν", "αμ", "αιθ",
- "ανηκ", "δεσποζ", "ενδιαφερ", "δε", "δευτερευ", "καθαρευ", "πλε",
- "τσα"),
- false);
-
- private int rule14(char s[], int len) {
- boolean removed = false;
-
- if (len > 5 && endsWith(s, len, "ουσεσ")) {
- len -= 5;
- removed = true;
- } else if (len > 4 && (endsWith(s, len, "ουσα") || endsWith(s, len, "ουσε"))) {
- len -= 4;
- removed = true;
- }
-
- if (removed && (exc14.contains(s, 0, len)
- || endsWithVowel(s, len)
- || endsWith(s, len, "ποδαρ")
- || endsWith(s, len, "βλεπ")
- || endsWith(s, len, "πανταχ")
- || endsWith(s, len, "φρυδ")
- || endsWith(s, len, "μαντιλ")
- || endsWith(s, len, "μαλλ")
- || endsWith(s, len, "κυματ")
- || endsWith(s, len, "λαχ")
- || endsWith(s, len, "ληγ")
- || endsWith(s, len, "φαγ")
- || endsWith(s, len, "ομ")
- || endsWith(s, len, "πρωτ"))) {
- len += 3; // add back -ουσ
- }
-
- return len;
- }
-
- private static final CharArraySet exc15a = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("αβαστ", "πολυφ", "αδηφ", "παμφ", "ρ", "ασπ", "αφ", "αμαλ",
- "αμαλλι", "ανυστ", "απερ", "ασπαρ", "αχαρ", "δερβεν", "δροσοπ",
- "ξεφ", "νεοπ", "νομοτ", "ολοπ", "ομοτ", "προστ", "προσωποπ", "συμπ",
- "συντ", "τ", "υποτ", "χαρ", "αειπ", "αιμοστ", "ανυπ", "αποτ",
- "αρτιπ", "διατ", "εν", "επιτ", "κροκαλοπ", "σιδηροπ", "λ", "ναυ",
- "ουλαμ", "ουρ", "π", "τρ", "μ"),
- false);
-
- private static final CharArraySet exc15b = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("ψοφ", "ναυλοχ"),
- false);
-
- private int rule15(char s[], int len) {
- boolean removed = false;
- if (len > 4 && endsWith(s, len, "αγεσ")) {
- len -= 4;
- removed = true;
- } else if (len > 3 && (endsWith(s, len, "αγα") || endsWith(s, len, "αγε"))) {
- len -= 3;
- removed = true;
- }
-
- if (removed) {
- final boolean cond1 = exc15a.contains(s, 0, len)
- || endsWith(s, len, "οφ")
- || endsWith(s, len, "πελ")
- || endsWith(s, len, "χορτ")
- || endsWith(s, len, "λλ")
- || endsWith(s, len, "σφ")
- || endsWith(s, len, "ρπ")
- || endsWith(s, len, "φρ")
- || endsWith(s, len, "πρ")
- || endsWith(s, len, "λοχ")
- || endsWith(s, len, "σμην");
-
- final boolean cond2 = exc15b.contains(s, 0, len)
- || endsWith(s, len, "κολλ");
-
- if (cond1 && !cond2)
- len += 2; // add back -αγ
- }
-
- return len;
- }
-
- private static final CharArraySet exc16 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("ν", "χερσον", "δωδεκαν", "ερημον", "μεγαλον", "επταν"),
- false);
-
- private int rule16(char s[], int len) {
- boolean removed = false;
- if (len > 4 && endsWith(s, len, "ησου")) {
- len -= 4;
- removed = true;
- } else if (len > 3 && (endsWith(s, len, "ησε") || endsWith(s, len, "ησα"))) {
- len -= 3;
- removed = true;
- }
-
- if (removed && exc16.contains(s, 0, len))
- len += 2; // add back -ησ
-
- return len;
- }
-
- private static final CharArraySet exc17 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("ασβ", "σβ", "αχρ", "χρ", "απλ", "αειμν", "δυσχρ", "ευχρ", "κοινοχρ", "παλιμψ"),
- false);
-
- private int rule17(char s[], int len) {
- if (len > 4 && endsWith(s, len, "ηστε")) {
- len -= 4;
- if (exc17.contains(s, 0, len))
- len += 3; // add back the -ηστ
- }
-
- return len;
- }
-
- private static final CharArraySet exc18 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("ν", "ρ", "σπι", "στραβομουτσ", "κακομουτσ", "εξων"),
- false);
-
- private int rule18(char s[], int len) {
- boolean removed = false;
-
- if (len > 6 && (endsWith(s, len, "ησουνε") || endsWith(s, len, "ηθουνε"))) {
- len -= 6;
- removed = true;
- } else if (len > 4 && endsWith(s, len, "ουνε")) {
- len -= 4;
- removed = true;
- }
-
- if (removed && exc18.contains(s, 0, len)) {
- len += 3;
- s[len - 3] = 'ο';
- s[len - 2] = 'υ';
- s[len - 1] = 'ν';
- }
- return len;
- }
-
- private static final CharArraySet exc19 = new CharArraySet(Version.LUCENE_31,
- Arrays.asList("παρασουσ", "φ", "χ", "ωριοπλ", "αζ", "αλλοσουσ", "ασουσ"),
- false);
-
- private int rule19(char s[], int len) {
- boolean removed = false;
-
- if (len > 6 && (endsWith(s, len, "ησουμε") || endsWith(s, len, "ηθουμε"))) {
- len -= 6;
- removed = true;
- } else if (len > 4 && endsWith(s, len, "ουμε")) {
- len -= 4;
- removed = true;
- }
-
- if (removed && exc19.contains(s, 0, len)) {
- len += 3;
- s[len - 3] = 'ο';
- s[len - 2] = 'υ';
- s[len - 1] = 'μ';
- }
- return len;
- }
-
- private int rule20(char s[], int len) {
- if (len > 5 && (endsWith(s, len, "ματων") || endsWith(s, len, "ματοσ")))
- len -= 3;
- else if (len > 4 && endsWith(s, len, "ματα"))
- len -= 2;
- return len;
- }
-
- private int rule21(char s[], int len) {
- if (len > 9 && endsWith(s, len, "ιοντουσαν"))
- return len - 9;
-
- if (len > 8 && (endsWith(s, len, "ιομασταν") ||
- endsWith(s, len, "ιοσασταν") ||
- endsWith(s, len, "ιουμαστε") ||
- endsWith(s, len, "οντουσαν")))
- return len - 8;
-
- if (len > 7 && (endsWith(s, len, "ιεμαστε") ||
- endsWith(s, len, "ιεσαστε") ||
- endsWith(s, len, "ιομουνα") ||
- endsWith(s, len, "ιοσαστε") ||
- endsWith(s, len, "ιοσουνα") ||
- endsWith(s, len, "ιουνται") ||
- endsWith(s, len, "ιουνταν") ||
- endsWith(s, len, "ηθηκατε") ||
- endsWith(s, len, "ομασταν") ||
- endsWith(s, len, "οσασταν") ||
- endsWith(s, len, "ουμαστε")))
- return len - 7;
-
- if (len > 6 && (endsWith(s, len, "ιομουν") ||
- endsWith(s, len, "ιονταν") ||
- endsWith(s, len, "ιοσουν") ||
- endsWith(s, len, "ηθειτε") ||
- endsWith(s, len, "ηθηκαν") ||
- endsWith(s, len, "ομουνα") ||
- endsWith(s, len, "οσαστε") ||
- endsWith(s, len, "οσουνα") ||
- endsWith(s, len, "ουνται") ||
- endsWith(s, len, "ουνταν") ||
- endsWith(s, len, "ουσατε")))
- return len - 6;
-
- if (len > 5 && (endsWith(s, len, "αγατε") ||
- endsWith(s, len, "ιεμαι") ||
- endsWith(s, len, "ιεται") ||
- endsWith(s, len, "ιεσαι") ||
- endsWith(s, len, "ιοταν") ||
- endsWith(s, len, "ιουμα") ||
- endsWith(s, len, "ηθεισ") ||
- endsWith(s, len, "ηθουν") ||
- endsWith(s, len, "ηκατε") ||
- endsWith(s, len, "ησατε") ||
- endsWith(s, len, "ησουν") ||
- endsWith(s, len, "ομουν") ||
- endsWith(s, len, "ονται") ||
- endsWith(s, len, "ονταν") ||
- endsWith(s, len, "οσουν") ||
- endsWith(s, len, "ουμαι") ||
- endsWith(s, len, "ουσαν")))
- return len - 5;
-
- if (len > 4 && (endsWith(s, len, "αγαν") ||
- endsWith(s, len, "αμαι") ||
- endsWith(s, len, "ασαι") ||
- endsWith(s, len, "αται") ||
- endsWith(s, len, "ειτε") ||
- endsWith(s, len, "εσαι") ||
- endsWith(s, len, "εται") ||
- endsWith(s, len, "ηδεσ") ||
- endsWith(s, len, "ηδων") ||
- endsWith(s, len, "ηθει") ||
- endsWith(s, len, "ηκαν") ||
- endsWith(s, len, "ησαν") ||
- endsWith(s, len, "ησει") ||
- endsWith(s, len, "ησεσ") ||
- endsWith(s, len, "ομαι") ||
- endsWith(s, len, "οταν")))
- return len - 4;
-
- if (len > 3 && (endsWith(s, len, "αει") ||
- endsWith(s, len, "εισ") ||
- endsWith(s, len, "ηθω") ||
- endsWith(s, len, "ησω") ||
- endsWith(s, len, "ουν") ||
- endsWith(s, len, "ουσ")))
- return len - 3;
-
- if (len > 2 && (endsWith(s, len, "αν") ||
- endsWith(s, len, "ασ") ||
- endsWith(s, len, "αω") ||
- endsWith(s, len, "ει") ||
- endsWith(s, len, "εσ") ||
- endsWith(s, len, "ησ") ||
- endsWith(s, len, "οι") ||
- endsWith(s, len, "οσ") ||
- endsWith(s, len, "ου") ||
- endsWith(s, len, "υσ") ||
- endsWith(s, len, "ων")))
- return len - 2;
-
- if (len > 1 && endsWithVowel(s, len))
- return len - 1;
-
- return len;
- }
-
- private int rule22(char s[], int len) {
- if (endsWith(s, len, "εστερ") ||
- endsWith(s, len, "εστατ"))
- return len - 5;
-
- if (endsWith(s, len, "οτερ") ||
- endsWith(s, len, "οτατ") ||
- endsWith(s, len, "υτερ") ||
- endsWith(s, len, "υτατ") ||
- endsWith(s, len, "ωτερ") ||
- endsWith(s, len, "ωτατ"))
- return len - 4;
-
- return len;
- }
-
- private boolean endsWith(char s[], int len, String suffix) {
- final int suffixLen = suffix.length();
- if (suffixLen > len)
- return false;
- for (int i = suffixLen - 1; i >= 0; i--)
- if (s[len -(suffixLen - i)] != suffix.charAt(i))
- return false;
-
- return true;
- }
-
- private boolean endsWithVowel(char s[], int len) {
- if (len == 0)
- return false;
- switch(s[len - 1]) {
- case 'α':
- case 'ε':
- case 'η':
- case 'ι':
- case 'ο':
- case 'υ':
- case 'ω':
- return true;
- default:
- return false;
- }
- }
-
- private boolean endsWithVowelNoY(char s[], int len) {
- if (len == 0)
- return false;
- switch(s[len - 1]) {
- case 'α':
- case 'ε':
- case 'η':
- case 'ι':
- case 'ο':
- case 'ω':
- return true;
- default:
- return false;
- }
- }
-}
fnp / pylucene.git / blobdiff