001/*
002 * Licensed to the author under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package de.cuioss.test.generator.internal.net.java.quickcheck.generator.support;
018
019import static de.cuioss.tools.base.Preconditions.checkState;
020
021import de.cuioss.test.generator.internal.net.java.quickcheck.Generator;
022import de.cuioss.test.generator.internal.net.java.quickcheck.collection.Pair;
023
024public class CharacterGenerator implements Generator<Character> {
025
026    public static final Pair<Character, Character> BASIC_LATIN = new Pair<>(
027            (char) 0x20, (char) 0x7F);
028
029    public static final Pair<Character, Character> LATIN_1_SUPPLEMENT = new Pair<>(
030            (char) 0xa0, (char) 0xFF);
031
032    private final IntegerGenerator generator;
033
034    public CharacterGenerator() {
035        this(BASIC_LATIN.getFirst(), BASIC_LATIN.getSecond());
036    }
037
038    public CharacterGenerator(char first, char last) {
039        checkState(last >= first, "first <= last");
040        this.generator = new IntegerGenerator(first, last);
041    }
042
043    @Override
044    public Character next() {
045        return nextChar();
046    }
047
048    public char nextChar() {
049        return (char) this.generator.nextInt();
050    }
051}