Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * 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.
 */

import java.text.CharacterIterator;
import java.text.StringCharacterIterator;

public class Main {
    protected static boolean checkPrefixPart(String s) {
        if (s.length() == 0)
            return true;
        CharacterIterator cIter = new StringCharacterIterator(s);
        char ch = cIter.first();
        if (!checkNameStartChar(ch))
            return false;
        if (ch == '_') // Can't start with _ (bnodes labels handled separately) 
            return false;
        return checkNameTail(cIter);
    }

    protected static boolean checkNameStartChar(char ch) {
        if (Character.isLetter(ch))
            return true;
        if (ch == '_')
            return true;
        return false;
    }

    private static boolean checkNameTail(CharacterIterator cIter) {
        // Assumes cIter.first already called but nothing else.
        // Skip first char.
        char ch = cIter.next();
        for (; ch != java.text.CharacterIterator.DONE; ch = cIter.next()) {
            if (!checkNameChar(ch))
                return false;
        }
        return true;
    }

    protected static boolean checkNameChar(char ch) {
        if (Character.isLetterOrDigit(ch))
            return true;
        if (ch == '_')
            return true;
        if (ch == '-')
            return true;
        return false;
    }
}