| /* |
| * 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. |
| */ |
| package org.apache.lucene.analysis.hunspell; |
| |
| enum WordCase { |
| /** e.g. WORD */ |
| UPPER, |
| |
| /** e.g. Word */ |
| TITLE, |
| |
| /** e.g. word */ |
| LOWER, |
| |
| /** e.g. WoRd or wOrd */ |
| MIXED, |
| |
| /** e.g "-" or "/" or "42" */ |
| NEUTRAL; |
| |
| static WordCase caseOf(char[] word, int length) { |
| CharCase startCase = charCase(word[0]); |
| |
| boolean seenUpper = false; |
| boolean seenLower = false; |
| for (int i = 1; i < length; i++) { |
| CharCase cc = charCase(word[i]); |
| seenUpper = seenUpper || cc == CharCase.UPPER; |
| seenLower = seenLower || cc == CharCase.LOWER; |
| if (seenUpper && seenLower) break; |
| } |
| |
| return get(startCase, seenUpper, seenLower); |
| } |
| |
| static WordCase caseOf(CharSequence word) { |
| return caseOf(word, word.length()); |
| } |
| |
| static WordCase caseOf(CharSequence word, int length) { |
| CharCase startCase = charCase(word.charAt(0)); |
| |
| boolean seenUpper = false; |
| boolean seenLower = false; |
| for (int i = 1; i < length; i++) { |
| CharCase cc = charCase(word.charAt(i)); |
| seenUpper = seenUpper || cc == CharCase.UPPER; |
| seenLower = seenLower || cc == CharCase.LOWER; |
| if (seenUpper && seenLower) break; |
| } |
| |
| return get(startCase, seenUpper, seenLower); |
| } |
| |
| private static WordCase get(CharCase startCase, boolean seenUpper, boolean seenLower) { |
| if (seenLower && seenUpper) return MIXED; |
| switch (startCase) { |
| case LOWER: |
| return seenUpper ? MIXED : LOWER; |
| case UPPER: |
| return !seenLower ? UPPER : TITLE; |
| default: |
| return seenLower ? LOWER : seenUpper ? UPPER : NEUTRAL; |
| } |
| } |
| |
| private static CharCase charCase(char c) { |
| if (Character.isUpperCase(c)) { |
| return CharCase.UPPER; |
| } |
| if (Character.isLowerCase(c) && Character.toUpperCase(c) != c) { |
| return CharCase.LOWER; |
| } |
| return CharCase.NEUTRAL; |
| } |
| |
| private enum CharCase { |
| UPPER, |
| LOWER, |
| NEUTRAL |
| } |
| } |