Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (C) 2006-2013 phloc systems
 * http://www.phloc.com
 * office[at]phloc[dot]com
 *
 * Licensed 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 javax.annotation.Nullable;

public class Main {
    /**
     * Contains a boolean mask for all characters from 0x00-0xff which are invalid
     * (marked as true) and which are valid (marked as false)
     */
    private static final boolean[] ILLEGAL_XML_CHARS = new boolean[] { true, true, true, true, true, true, true,
            true, true, false, false, true, true, false, true, true,
            // 16
            true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
            // 32
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 48
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 64
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 80
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 96
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 112
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            true,
            // 128
            true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
            // 144
            true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
            // 160
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 176
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 192
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 208
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 224
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false,
            // 240
            false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
            false };

    public static boolean containsInvalidXMLCharacter(@Nullable final String s) {
        return s != null && containsInvalidXMLCharacter(s.toCharArray());
    }

    public static boolean containsInvalidXMLCharacter(@Nullable final char[] aChars) {
        if (aChars != null)
            for (final char c : aChars)
                if (isInvalidXMLCharacter(c))
                    return true;
        return false;
    }

    /**
     * Check if the passed character is valid for XML content. Works for XML 1.0
     * and XML 1.1.<br>
     * Note: makes no difference between the runtime JAXP solution and the
     * explicit Xerces version
     *
     * @param c
     *        The character to be checked.
     * @return <code>true</code> if the character is valid in XML,
     *         <code>false</code> otherwise.
     */
    public static boolean isInvalidXMLCharacter(final char c) {
        // Based on: http://www.w3.org/TR/2006/REC-xml11-20060816/#charsets

        // Speed up by separating the most common use cases first
        if (c < 256) {
            // Character <= 0x00ff - use precomposed table
            return ILLEGAL_XML_CHARS[c];
        }

        // Character >= 0x0100
        // For completeness, the Unicode line separator character, #x2028, is
        // also supported.
        // Surrogate blocks (no Java IDs found)
        // High surrogate: 0xd800-0xdbff
        // Low surrogate: 0xdc00-0xdfff
        return c == '\u2028' || (c >= '\ufdd0' && c <= '\ufddf') || c == '\ufffe' || c == '\uffff'
                || Character.isHighSurrogate(c) || Character.isLowSurrogate(c);
    }
}