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| 1 | +/* | |
| 2 | + * Copyright (c) 1998, 2008, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package javax.swing.text.html.parser; | |
| 27 | + | |
| 28 | +import java.util.Hashtable; | |
| 29 | +import java.io.IOException; | |
| 30 | +import java.io.InputStream; | |
| 31 | +import java.io.InputStreamReader; | |
| 32 | +import java.io.Reader; | |
| 33 | +import java.io.CharArrayReader; | |
| 34 | +import java.net.URL; | |
| 35 | + | |
| 36 | +/** | |
| 37 | + * An entity is described in a DTD using the ENTITY construct. | |
| 38 | + * It defines the type and value of the the entity. | |
| 39 | + * | |
| 40 | + * @see DTD | |
| 41 | + * @author Arthur van Hoff | |
| 42 | + */ | |
| 43 | +public final | |
| 44 | +class Entity implements DTDConstants { | |
| 45 | + public String name; | |
| 46 | + public int type; | |
| 47 | + public char data[]; | |
| 48 | + | |
| 49 | + /** | |
| 50 | + * Creates an entity. | |
| 51 | + * @param name the name of the entity | |
| 52 | + * @param type the type of the entity | |
| 53 | + * @param data the char array of data | |
| 54 | + */ | |
| 55 | + public Entity(String name, int type, char data[]) { | |
| 56 | + this.name = name; | |
| 57 | + this.type = type; | |
| 58 | + this.data = data; | |
| 59 | + } | |
| 60 | + | |
| 61 | + /** | |
| 62 | + * Gets the name of the entity. | |
| 63 | + * @return the name of the entity, as a <code>String</code> | |
| 64 | + */ | |
| 65 | + public String getName() { | |
| 66 | + return name; | |
| 67 | + } | |
| 68 | + | |
| 69 | + /** | |
| 70 | + * Gets the type of the entity. | |
| 71 | + * @return the type of the entity | |
| 72 | + */ | |
| 73 | + public int getType() { | |
| 74 | + return type & 0xFFFF; | |
| 75 | + } | |
| 76 | + | |
| 77 | + /** | |
| 78 | + * Returns <code>true</code> if it is a parameter entity. | |
| 79 | + * @return <code>true</code> if it is a parameter entity | |
| 80 | + */ | |
| 81 | + public boolean isParameter() { | |
| 82 | + return (type & PARAMETER) != 0; | |
| 83 | + } | |
| 84 | + | |
| 85 | + /** | |
| 86 | + * Returns <code>true</code> if it is a general entity. | |
| 87 | + * @return <code>true</code> if it is a general entity | |
| 88 | + */ | |
| 89 | + public boolean isGeneral() { | |
| 90 | + return (type & GENERAL) != 0; | |
| 91 | + } | |
| 92 | + | |
| 93 | + /** | |
| 94 | + * Returns the <code>data</code>. | |
| 95 | + * @return the <code>data</code> | |
| 96 | + */ | |
| 97 | + public char getData()[] { | |
| 98 | + return data; | |
| 99 | + } | |
| 100 | + | |
| 101 | + /** | |
| 102 | + * Returns the data as a <code>String</code>. | |
| 103 | + * @return the data as a <code>String</code> | |
| 104 | + */ | |
| 105 | + public String getString() { | |
| 106 | + return new String(data, 0, data.length); | |
| 107 | + } | |
| 108 | + | |
| 109 | + | |
| 110 | + static Hashtable<String, Integer> entityTypes = new Hashtable<String, Integer>(); | |
| 111 | + | |
| 112 | + static { | |
| 113 | + entityTypes.put("PUBLIC", Integer.valueOf(PUBLIC)); | |
| 114 | + entityTypes.put("CDATA", Integer.valueOf(CDATA)); | |
| 115 | + entityTypes.put("SDATA", Integer.valueOf(SDATA)); | |
| 116 | + entityTypes.put("PI", Integer.valueOf(PI)); | |
| 117 | + entityTypes.put("STARTTAG", Integer.valueOf(STARTTAG)); | |
| 118 | + entityTypes.put("ENDTAG", Integer.valueOf(ENDTAG)); | |
| 119 | + entityTypes.put("MS", Integer.valueOf(MS)); | |
| 120 | + entityTypes.put("MD", Integer.valueOf(MD)); | |
| 121 | + entityTypes.put("SYSTEM", Integer.valueOf(SYSTEM)); | |
| 122 | + } | |
| 123 | + | |
| 124 | + /** | |
| 125 | + * Converts <code>nm</code> string to the corresponding | |
| 126 | + * entity type. If the string does not have a corresponding | |
| 127 | + * entity type, returns the type corresponding to "CDATA". | |
| 128 | + * Valid entity types are: "PUBLIC", "CDATA", "SDATA", "PI", | |
| 129 | + * "STARTTAG", "ENDTAG", "MS", "MD", "SYSTEM". | |
| 130 | + * | |
| 131 | + * @param nm the string to be converted | |
| 132 | + * @return the corresponding entity type, or the type corresponding | |
| 133 | + * to "CDATA", if none exists | |
| 134 | + */ | |
| 135 | + public static int name2type(String nm) { | |
| 136 | + Integer i = entityTypes.get(nm); | |
| 137 | + return (i == null) ? CDATA : i.intValue(); | |
| 138 | + } | |
| 139 | +} | |