001/*
002 * Copyright © 2025 CUI-OpenSource-Software (info@cuioss.de)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package de.cuioss.test.generator.internal.net.java.quickcheck.generator.support;
017
018import de.cuioss.test.generator.internal.net.java.quickcheck.Generator;
019import de.cuioss.test.generator.internal.net.java.quickcheck.collection.Pair;
020
021public class CharacterGenerator implements Generator<Character> {
022
023    public static final Pair<Character, Character> BASIC_LATIN = new Pair<>((char) 0x20, (char) 0x7F);
024
025    public static final Pair<Character, Character> LATIN_1_SUPPLEMENT = new Pair<>((char) 0xa0, (char) 0xFF);
026
027    private final IntegerGenerator generator;
028
029    public CharacterGenerator() {
030        this(BASIC_LATIN.getFirst(), BASIC_LATIN.getSecond());
031    }
032
033    public CharacterGenerator(char first, char last) {
034        if (last < first) {
035            throw new IllegalStateException("first <= last");
036        }
037        this.generator = new IntegerGenerator(first, last);
038    }
039
040    @Override
041    public Character next() {
042        return nextChar();
043    }
044
045    public char nextChar() {
046        return (char) this.generator.nextInt();
047    }
048}