The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2002,2003, Stefan Haustein, Oberhausen, Rhld., Germany |
| 2 | * |
| 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 4 | * of this software and associated documentation files (the "Software"), to deal |
| 5 | * in the Software without restriction, including without limitation the rights |
| 6 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 7 | * sell copies of the Software, and to permit persons to whom the Software is |
| 8 | * furnished to do so, subject to the following conditions: |
| 9 | * |
| 10 | * The above copyright notice and this permission notice shall be included in |
| 11 | * all copies or substantial portions of the Software. |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 18 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 19 | * IN THE SOFTWARE. */ |
| 20 | |
| 21 | // Contributors: Paul Hackenberger (unterminated entity handling in relaxed mode) |
| 22 | |
| 23 | package org.kxml2.io; |
| 24 | |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 25 | import java.io.Closeable; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 26 | import java.io.IOException; |
| 27 | import java.io.InputStream; |
| 28 | import java.io.InputStreamReader; |
| 29 | import java.io.Reader; |
| 30 | import java.util.HashMap; |
| 31 | import java.util.Map; |
Jesse Wilson | a78c2aa | 2010-11-14 12:01:08 -0800 | [diff] [blame] | 32 | import libcore.internal.StringPool; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 33 | import org.xmlpull.v1.XmlPullParser; |
| 34 | import org.xmlpull.v1.XmlPullParserException; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 35 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 36 | /** |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 37 | * An XML pull parser with limited support for parsing internal DTDs. |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 38 | */ |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 39 | public class KXmlParser implements XmlPullParser, Closeable { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 40 | |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 41 | private final String PROPERTY_XMLDECL_VERSION |
| 42 | = "http://xmlpull.org/v1/doc/properties.html#xmldecl-version"; |
| 43 | private final String PROPERTY_XMLDECL_STANDALONE |
| 44 | = "http://xmlpull.org/v1/doc/properties.html#xmldecl-standalone"; |
| 45 | private final String PROPERTY_LOCATION = "http://xmlpull.org/v1/doc/properties.html#location"; |
| 46 | private static final String FEATURE_RELAXED = "http://xmlpull.org/v1/doc/features.html#relaxed"; |
| 47 | |
| 48 | private static final Map<String, String> DEFAULT_ENTITIES = new HashMap<String, String>(); |
| 49 | static { |
| 50 | DEFAULT_ENTITIES.put("lt", "<"); |
| 51 | DEFAULT_ENTITIES.put("gt", ">"); |
| 52 | DEFAULT_ENTITIES.put("amp", "&"); |
| 53 | DEFAULT_ENTITIES.put("apos", "'"); |
| 54 | DEFAULT_ENTITIES.put("quot", "\""); |
| 55 | } |
| 56 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 57 | private static final int ELEMENTDECL = 11; |
| 58 | private static final int ENTITYDECL = 12; |
| 59 | private static final int ATTLISTDECL = 13; |
| 60 | private static final int NOTATIONDECL = 14; |
| 61 | private static final int PARAMETER_ENTITY_REF = 15; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 62 | private static final char[] START_COMMENT = { '<', '!', '-', '-' }; |
| 63 | private static final char[] END_COMMENT = { '-', '-', '>' }; |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 64 | private static final char[] COMMENT_DOUBLE_DASH = { '-', '-' }; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 65 | private static final char[] START_CDATA = { '<', '!', '[', 'C', 'D', 'A', 'T', 'A', '[' }; |
| 66 | private static final char[] END_CDATA = { ']', ']', '>' }; |
| 67 | private static final char[] START_PROCESSING_INSTRUCTION = { '<', '?' }; |
| 68 | private static final char[] END_PROCESSING_INSTRUCTION = { '?', '>' }; |
| 69 | private static final char[] START_DOCTYPE = { '<', '!', 'D', 'O', 'C', 'T', 'Y', 'P', 'E' }; |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 70 | private static final char[] SYSTEM = { 'S', 'Y', 'S', 'T', 'E', 'M' }; |
| 71 | private static final char[] PUBLIC = { 'P', 'U', 'B', 'L', 'I', 'C' }; |
| 72 | private static final char[] START_ELEMENT = { '<', '!', 'E', 'L', 'E', 'M', 'E', 'N', 'T' }; |
| 73 | private static final char[] START_ATTLIST = { '<', '!', 'A', 'T', 'T', 'L', 'I', 'S', 'T' }; |
| 74 | private static final char[] START_ENTITY = { '<', '!', 'E', 'N', 'T', 'I', 'T', 'Y' }; |
| 75 | private static final char[] START_NOTATION = { '<', '!', 'N', 'O', 'T', 'A', 'T', 'I', 'O', 'N' }; |
| 76 | private static final char[] EMPTY = new char[] { 'E', 'M', 'P', 'T', 'Y' }; |
| 77 | private static final char[] ANY = new char[]{ 'A', 'N', 'Y' }; |
| 78 | private static final char[] NDATA = new char[]{ 'N', 'D', 'A', 'T', 'A' }; |
| 79 | private static final char[] NOTATION = new char[]{ 'N', 'O', 'T', 'A', 'T', 'I', 'O', 'N' }; |
| 80 | private static final char[] REQUIRED = new char[] { 'R', 'E', 'Q', 'U', 'I', 'R', 'E', 'D' }; |
| 81 | private static final char[] IMPLIED = new char[] { 'I', 'M', 'P', 'L', 'I', 'E', 'D' }; |
| 82 | private static final char[] FIXED = new char[] { 'F', 'I', 'X', 'E', 'D' }; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 83 | |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 84 | static final private String UNEXPECTED_EOF = "Unexpected EOF"; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 85 | static final private String ILLEGAL_TYPE = "Wrong event type"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 86 | static final private int XML_DECLARATION = 998; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 87 | |
| 88 | // general |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 89 | private String location; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 90 | |
| 91 | private String version; |
| 92 | private Boolean standalone; |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 93 | private String rootElementName; |
| 94 | private String systemId; |
| 95 | private String publicId; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 96 | |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 97 | /** |
| 98 | * True if the {@code <!DOCTYPE>} contents are handled. The DTD defines |
| 99 | * entity values and default attribute values. These values are parsed at |
| 100 | * inclusion time and may contain both tags and entity references. |
| 101 | * |
| 102 | * <p>If this is false, the user must {@link #defineEntityReplacementText |
| 103 | * define entity values manually}. Such entity values are literal strings |
| 104 | * and will not be parsed. There is no API to define default attributes |
| 105 | * manually. |
| 106 | */ |
| 107 | private boolean processDocDecl; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 108 | private boolean processNsp; |
| 109 | private boolean relaxed; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 110 | private boolean keepNamespaceAttributes; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 111 | |
| 112 | /** |
| 113 | * Entities defined in or for this document. This map is created lazily. |
| 114 | */ |
| 115 | private Map<String, char[]> documentEntities; |
| 116 | |
| 117 | /** |
| 118 | * Default attributes in this document. The outer map's key is the element |
| 119 | * name; the inner map's key is the attribute name. Both keys should be |
| 120 | * without namespace adjustments. This map is created lazily. |
| 121 | */ |
| 122 | private Map<String, Map<String, String>> defaultAttributes; |
| 123 | |
| 124 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 125 | private int depth; |
| 126 | private String[] elementStack = new String[16]; |
| 127 | private String[] nspStack = new String[8]; |
| 128 | private int[] nspCounts = new int[4]; |
| 129 | |
| 130 | // source |
| 131 | |
| 132 | private Reader reader; |
| 133 | private String encoding; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 134 | private ContentSource nextContentSource; |
| 135 | private char[] buffer = new char[8192]; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 136 | private int position = 0; |
| 137 | private int limit = 0; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 138 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 139 | /* |
| 140 | * Track the number of newlines and columns preceding the current buffer. To |
| 141 | * compute the line and column of a position in the buffer, compute the line |
| 142 | * and column in the buffer and add the preceding values. |
| 143 | */ |
| 144 | private int bufferStartLine; |
| 145 | private int bufferStartColumn; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 146 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 147 | // the current token |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 148 | |
| 149 | private int type; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 150 | private boolean isWhitespace; |
| 151 | private String namespace; |
| 152 | private String prefix; |
| 153 | private String name; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 154 | private String text; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 155 | |
| 156 | private boolean degenerated; |
| 157 | private int attributeCount; |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 158 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 159 | /* |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 160 | * The current element's attributes arranged in groups of 4: |
| 161 | * i + 0 = attribute namespace URI |
| 162 | * i + 1 = attribute namespace prefix |
| 163 | * i + 2 = attribute qualified name (may contain ":", as in "html:h1") |
| 164 | * i + 3 = attribute value |
| 165 | */ |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 166 | private String[] attributes = new String[16]; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 167 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 168 | private String error; |
| 169 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 170 | private boolean unresolved; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 171 | |
Jesse Wilson | a78c2aa | 2010-11-14 12:01:08 -0800 | [diff] [blame] | 172 | public final StringPool stringPool = new StringPool(); |
| 173 | |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 174 | /** |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 175 | * Retains namespace attributes like {@code xmlns="http://foo"} or {@code xmlns:foo="http:foo"} |
| 176 | * in pulled elements. Most applications will only be interested in the effective namespaces of |
| 177 | * their elements, so these attributes aren't useful. But for structure preserving wrappers like |
| 178 | * DOM, it is necessary to keep the namespace data around. |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 179 | */ |
| 180 | public void keepNamespaceAttributes() { |
| 181 | this.keepNamespaceAttributes = true; |
| 182 | } |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 183 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 184 | private boolean adjustNsp() throws XmlPullParserException { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 185 | boolean any = false; |
| 186 | |
| 187 | for (int i = 0; i < attributeCount << 2; i += 4) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 188 | String attrName = attributes[i + 2]; |
| 189 | int cut = attrName.indexOf(':'); |
| 190 | String prefix; |
| 191 | |
| 192 | if (cut != -1) { |
| 193 | prefix = attrName.substring(0, cut); |
| 194 | attrName = attrName.substring(cut + 1); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 195 | } else if (attrName.equals("xmlns")) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 196 | prefix = attrName; |
| 197 | attrName = null; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 198 | } else { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 199 | continue; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 200 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 201 | |
| 202 | if (!prefix.equals("xmlns")) { |
| 203 | any = true; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 204 | } else { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 205 | int j = (nspCounts[depth]++) << 1; |
| 206 | |
| 207 | nspStack = ensureCapacity(nspStack, j + 2); |
| 208 | nspStack[j] = attrName; |
| 209 | nspStack[j + 1] = attributes[i + 3]; |
| 210 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 211 | if (attrName != null && attributes[i + 3].isEmpty()) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 212 | checkRelaxed("illegal empty namespace"); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 213 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 214 | |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 215 | if (keepNamespaceAttributes) { |
Elliott Hughes | f33eae7 | 2010-05-13 12:36:25 -0700 | [diff] [blame] | 216 | // explicitly set the namespace for unprefixed attributes |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 217 | // such as xmlns="http://foo" |
| 218 | attributes[i] = "http://www.w3.org/2000/xmlns/"; |
| 219 | any = true; |
| 220 | } else { |
| 221 | System.arraycopy( |
| 222 | attributes, |
| 223 | i + 4, |
| 224 | attributes, |
| 225 | i, |
| 226 | ((--attributeCount) << 2) - i); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 227 | |
Jesse Wilson | 1ec94fe | 2010-02-19 09:22:21 -0800 | [diff] [blame] | 228 | i -= 4; |
| 229 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 230 | } |
| 231 | } |
| 232 | |
| 233 | if (any) { |
| 234 | for (int i = (attributeCount << 2) - 4; i >= 0; i -= 4) { |
| 235 | |
| 236 | String attrName = attributes[i + 2]; |
| 237 | int cut = attrName.indexOf(':'); |
| 238 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 239 | if (cut == 0 && !relaxed) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 240 | throw new RuntimeException( |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 241 | "illegal attribute name: " + attrName + " at " + this); |
| 242 | } else if (cut != -1) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 243 | String attrPrefix = attrName.substring(0, cut); |
| 244 | |
| 245 | attrName = attrName.substring(cut + 1); |
| 246 | |
| 247 | String attrNs = getNamespace(attrPrefix); |
| 248 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 249 | if (attrNs == null && !relaxed) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 250 | throw new RuntimeException( |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 251 | "Undefined Prefix: " + attrPrefix + " in " + this); |
| 252 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 253 | |
| 254 | attributes[i] = attrNs; |
| 255 | attributes[i + 1] = attrPrefix; |
| 256 | attributes[i + 2] = attrName; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 257 | } |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | int cut = name.indexOf(':'); |
| 262 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 263 | if (cut == 0) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 264 | checkRelaxed("illegal tag name: " + name); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 265 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 266 | |
| 267 | if (cut != -1) { |
| 268 | prefix = name.substring(0, cut); |
| 269 | name = name.substring(cut + 1); |
| 270 | } |
| 271 | |
| 272 | this.namespace = getNamespace(prefix); |
| 273 | |
| 274 | if (this.namespace == null) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 275 | if (prefix != null) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 276 | checkRelaxed("undefined prefix: " + prefix); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 277 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 278 | this.namespace = NO_NAMESPACE; |
| 279 | } |
| 280 | |
| 281 | return any; |
| 282 | } |
| 283 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 284 | private String[] ensureCapacity(String[] arr, int required) { |
| 285 | if (arr.length >= required) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 286 | return arr; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 287 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 288 | String[] bigger = new String[required + 16]; |
| 289 | System.arraycopy(arr, 0, bigger, 0, arr.length); |
| 290 | return bigger; |
| 291 | } |
| 292 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 293 | private void checkRelaxed(String errorMessage) throws XmlPullParserException { |
| 294 | if (!relaxed) { |
| 295 | throw new XmlPullParserException(errorMessage, this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 296 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 297 | if (error == null) { |
| 298 | error = "Error: " + errorMessage; |
| 299 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 300 | } |
| 301 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 302 | public int next() throws XmlPullParserException, IOException { |
| 303 | return next(false); |
| 304 | } |
| 305 | |
| 306 | public int nextToken() throws XmlPullParserException, IOException { |
| 307 | return next(true); |
| 308 | } |
| 309 | |
| 310 | private int next(boolean justOneToken) throws IOException, XmlPullParserException { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 311 | if (reader == null) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 312 | throw new XmlPullParserException("setInput() must be called first.", this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 313 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 314 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 315 | if (type == END_TAG) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 316 | depth--; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 317 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 318 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 319 | // degenerated needs to be handled before error because of possible |
| 320 | // processor expectations(!) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 321 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 322 | if (degenerated) { |
| 323 | degenerated = false; |
| 324 | type = END_TAG; |
| 325 | return type; |
| 326 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 327 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 328 | if (error != null) { |
| 329 | if (justOneToken) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 330 | text = error; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 331 | type = COMMENT; |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 332 | error = null; |
| 333 | return type; |
| 334 | } else { |
| 335 | error = null; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 336 | } |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 337 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 338 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 339 | type = peekType(false); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 340 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 341 | if (type == XML_DECLARATION) { |
| 342 | readXmlDeclaration(); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 343 | type = peekType(false); |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 344 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 345 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 346 | text = null; |
| 347 | isWhitespace = true; |
| 348 | prefix = null; |
| 349 | name = null; |
| 350 | namespace = null; |
| 351 | attributeCount = -1; |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 352 | boolean throwOnResolveFailure = !justOneToken; |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 353 | |
| 354 | while (true) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 355 | switch (type) { |
| 356 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 357 | /* |
| 358 | * Return immediately after encountering a start tag, end tag, or |
| 359 | * the end of the document. |
| 360 | */ |
| 361 | case START_TAG: |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 362 | parseStartTag(false, throwOnResolveFailure); |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 363 | return type; |
| 364 | case END_TAG: |
| 365 | readEndTag(); |
| 366 | return type; |
| 367 | case END_DOCUMENT: |
| 368 | return type; |
| 369 | |
| 370 | /* |
| 371 | * Return after any text token when we're looking for a single |
| 372 | * token. Otherwise concatenate all text between tags. |
| 373 | */ |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 374 | case ENTITY_REF: |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 375 | if (justOneToken) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 376 | StringBuilder entityTextBuilder = new StringBuilder(); |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 377 | readEntity(entityTextBuilder, true, throwOnResolveFailure, ValueContext.TEXT); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 378 | text = entityTextBuilder.toString(); |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 379 | break; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 380 | } |
| 381 | // fall-through |
| 382 | case TEXT: |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 383 | text = readValue('<', !justOneToken, throwOnResolveFailure, ValueContext.TEXT); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 384 | if (depth == 0 && isWhitespace) { |
| 385 | type = IGNORABLE_WHITESPACE; |
| 386 | } |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 387 | break; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 388 | case CDSECT: |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 389 | read(START_CDATA); |
| 390 | text = readUntil(END_CDATA, true); |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 391 | break; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 392 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 393 | /* |
| 394 | * Comments, processing instructions and declarations are returned |
| 395 | * when we're looking for a single token. Otherwise they're skipped. |
| 396 | */ |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 397 | case COMMENT: |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 398 | String commentText = readComment(justOneToken); |
| 399 | if (justOneToken) { |
| 400 | text = commentText; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 401 | } |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 402 | break; |
| 403 | case PROCESSING_INSTRUCTION: |
| 404 | read(START_PROCESSING_INSTRUCTION); |
| 405 | String processingInstruction = readUntil(END_PROCESSING_INSTRUCTION, justOneToken); |
| 406 | if (justOneToken) { |
| 407 | text = processingInstruction; |
| 408 | } |
| 409 | break; |
| 410 | case DOCDECL: |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 411 | readDoctype(); |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 412 | if (justOneToken) { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 413 | text = ""; // TODO: support capturing the doctype text |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 414 | } |
| 415 | break; |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 416 | |
| 417 | default: |
| 418 | throw new XmlPullParserException("Unexpected token", this, null); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 419 | } |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 420 | |
| 421 | if (justOneToken) { |
| 422 | return type; |
| 423 | } |
| 424 | |
| 425 | if (type == IGNORABLE_WHITESPACE) { |
| 426 | text = null; |
| 427 | } |
| 428 | |
| 429 | /* |
| 430 | * We've read all that we can of a non-empty text block. Always |
| 431 | * report this as text, even if it was a CDATA block or entity |
| 432 | * reference. |
| 433 | */ |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 434 | int peek = peekType(false); |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 435 | if (text != null && !text.isEmpty() && peek < TEXT) { |
| 436 | type = TEXT; |
| 437 | return type; |
| 438 | } |
| 439 | |
| 440 | type = peek; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 441 | } |
| 442 | } |
| 443 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 444 | /** |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 445 | * Reads text until the specified delimiter is encountered. Consumes the |
| 446 | * text and the delimiter. |
| 447 | * |
| 448 | * @param returnText true to return the read text excluding the delimiter; |
| 449 | * false to return null. |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 450 | */ |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 451 | private String readUntil(char[] delimiter, boolean returnText) |
| 452 | throws IOException, XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 453 | int start = position; |
| 454 | StringBuilder result = null; |
| 455 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 456 | if (returnText && text != null) { |
| 457 | result = new StringBuilder(); |
| 458 | result.append(text); |
| 459 | } |
| 460 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 461 | search: |
| 462 | while (true) { |
| 463 | if (position + delimiter.length >= limit) { |
| 464 | if (start < position && returnText) { |
| 465 | if (result == null) { |
| 466 | result = new StringBuilder(); |
| 467 | } |
| 468 | result.append(buffer, start, position - start); |
| 469 | } |
| 470 | if (!fillBuffer(delimiter.length)) { |
| 471 | checkRelaxed(UNEXPECTED_EOF); |
| 472 | type = COMMENT; |
| 473 | return null; |
| 474 | } |
| 475 | start = position; |
| 476 | } |
| 477 | |
| 478 | // TODO: replace with Arrays.equals(buffer, position, delimiter, 0, delimiter.length) |
| 479 | // when the VM has better method inlining |
| 480 | for (int i = 0; i < delimiter.length; i++) { |
| 481 | if (buffer[position + i] != delimiter[i]) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 482 | position++; |
| 483 | continue search; |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | break; |
| 488 | } |
| 489 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 490 | int end = position; |
| 491 | position += delimiter.length; |
| 492 | |
| 493 | if (!returnText) { |
| 494 | return null; |
| 495 | } else if (result == null) { |
Jesse Wilson | a78c2aa | 2010-11-14 12:01:08 -0800 | [diff] [blame] | 496 | return stringPool.get(buffer, start, end - start); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 497 | } else { |
| 498 | result.append(buffer, start, end - start); |
| 499 | return result.toString(); |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | /** |
| 504 | * Returns true if an XML declaration was read. |
| 505 | */ |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 506 | private void readXmlDeclaration() throws IOException, XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 507 | if (bufferStartLine != 0 || bufferStartColumn != 0 || position != 0) { |
| 508 | checkRelaxed("processing instructions must not start with xml"); |
| 509 | } |
| 510 | |
| 511 | read(START_PROCESSING_INSTRUCTION); |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 512 | parseStartTag(true, true); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 513 | |
| 514 | if (attributeCount < 1 || !"version".equals(attributes[2])) { |
| 515 | checkRelaxed("version expected"); |
| 516 | } |
| 517 | |
| 518 | version = attributes[3]; |
| 519 | |
| 520 | int pos = 1; |
| 521 | |
| 522 | if (pos < attributeCount && "encoding".equals(attributes[2 + 4])) { |
| 523 | encoding = attributes[3 + 4]; |
| 524 | pos++; |
| 525 | } |
| 526 | |
| 527 | if (pos < attributeCount && "standalone".equals(attributes[4 * pos + 2])) { |
| 528 | String st = attributes[3 + 4 * pos]; |
| 529 | if ("yes".equals(st)) { |
| 530 | standalone = Boolean.TRUE; |
| 531 | } else if ("no".equals(st)) { |
| 532 | standalone = Boolean.FALSE; |
| 533 | } else { |
| 534 | checkRelaxed("illegal standalone value: " + st); |
| 535 | } |
| 536 | pos++; |
| 537 | } |
| 538 | |
| 539 | if (pos != attributeCount) { |
| 540 | checkRelaxed("unexpected attributes in XML declaration"); |
| 541 | } |
| 542 | |
| 543 | isWhitespace = true; |
| 544 | text = null; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 545 | } |
| 546 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 547 | private String readComment(boolean returnText) throws IOException, XmlPullParserException { |
| 548 | read(START_COMMENT); |
| 549 | |
| 550 | if (relaxed) { |
| 551 | return readUntil(END_COMMENT, returnText); |
| 552 | } |
| 553 | |
| 554 | String commentText = readUntil(COMMENT_DOUBLE_DASH, returnText); |
| 555 | if (peekCharacter() != '>') { |
| 556 | throw new XmlPullParserException("Comments may not contain --", this, null); |
| 557 | } |
| 558 | position++; |
| 559 | return commentText; |
| 560 | } |
| 561 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 562 | /** |
| 563 | * Read the document's DTD. Although this parser is non-validating, the DTD |
| 564 | * must be parsed to capture entity values and default attribute values. |
| 565 | */ |
| 566 | private void readDoctype() throws IOException, XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 567 | read(START_DOCTYPE); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 568 | skip(); |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 569 | rootElementName = readName(); |
| 570 | readExternalId(true, true); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 571 | skip(); |
| 572 | if (peekCharacter() == '[') { |
| 573 | readInternalSubset(); |
| 574 | } |
| 575 | skip(); |
| 576 | read('>'); |
| 577 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 578 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 579 | /** |
| 580 | * Reads an external ID of one of these two forms: |
| 581 | * SYSTEM "quoted system name" |
| 582 | * PUBLIC "quoted public id" "quoted system name" |
| 583 | * |
| 584 | * If the system name is not required, this also supports lone public IDs of |
| 585 | * this form: |
| 586 | * PUBLIC "quoted public id" |
| 587 | * |
| 588 | * Returns true if any ID was read. |
| 589 | */ |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 590 | private boolean readExternalId(boolean requireSystemName, boolean assignFields) |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 591 | throws IOException, XmlPullParserException { |
| 592 | skip(); |
| 593 | int c = peekCharacter(); |
| 594 | |
| 595 | if (c == 'S') { |
| 596 | read(SYSTEM); |
| 597 | } else if (c == 'P') { |
| 598 | read(PUBLIC); |
| 599 | skip(); |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 600 | if (assignFields) { |
| 601 | publicId = readQuotedId(true); |
| 602 | } else { |
| 603 | readQuotedId(false); |
| 604 | } |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 605 | } else { |
| 606 | return false; |
| 607 | } |
| 608 | |
| 609 | skip(); |
| 610 | |
| 611 | if (!requireSystemName) { |
| 612 | int delimiter = peekCharacter(); |
| 613 | if (delimiter != '"' && delimiter != '\'') { |
| 614 | return true; // no system name! |
| 615 | } |
| 616 | } |
| 617 | |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 618 | if (assignFields) { |
| 619 | systemId = readQuotedId(true); |
| 620 | } else { |
| 621 | readQuotedId(false); |
| 622 | } |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 623 | return true; |
| 624 | } |
| 625 | |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 626 | private static final char[] SINGLE_QUOTE = new char[] { '\'' }; |
| 627 | private static final char[] DOUBLE_QUOTE = new char[] { '"' }; |
| 628 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 629 | /** |
| 630 | * Reads a quoted string, performing no entity escaping of the contents. |
| 631 | */ |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 632 | private String readQuotedId(boolean returnText) throws IOException, XmlPullParserException { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 633 | int quote = peekCharacter(); |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 634 | char[] delimiter; |
| 635 | if (quote == '"') { |
| 636 | delimiter = DOUBLE_QUOTE; |
| 637 | } else if (quote == '\'') { |
| 638 | delimiter = SINGLE_QUOTE; |
| 639 | } else { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 640 | throw new XmlPullParserException("Expected a quoted string", this, null); |
| 641 | } |
| 642 | position++; |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 643 | return readUntil(delimiter, returnText); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | private void readInternalSubset() throws IOException, XmlPullParserException { |
| 647 | read('['); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 648 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 649 | while (true) { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 650 | skip(); |
| 651 | if (peekCharacter() == ']') { |
| 652 | position++; |
| 653 | return; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 654 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 655 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 656 | int declarationType = peekType(true); |
| 657 | switch (declarationType) { |
| 658 | case ELEMENTDECL: |
| 659 | readElementDeclaration(); |
| 660 | break; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 661 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 662 | case ATTLISTDECL: |
| 663 | readAttributeListDeclaration(); |
| 664 | break; |
| 665 | |
| 666 | case ENTITYDECL: |
| 667 | readEntityDeclaration(); |
| 668 | break; |
| 669 | |
| 670 | case NOTATIONDECL: |
| 671 | readNotationDeclaration(); |
| 672 | break; |
| 673 | |
| 674 | case PROCESSING_INSTRUCTION: |
| 675 | read(START_PROCESSING_INSTRUCTION); |
| 676 | readUntil(END_PROCESSING_INSTRUCTION, false); |
| 677 | break; |
| 678 | |
| 679 | case COMMENT: |
| 680 | readComment(false); |
| 681 | break; |
| 682 | |
| 683 | case PARAMETER_ENTITY_REF: |
| 684 | throw new XmlPullParserException( |
| 685 | "Parameter entity references are not supported", this, null); |
| 686 | |
| 687 | default: |
| 688 | throw new XmlPullParserException("Unexpected token", this, null); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 689 | } |
| 690 | } |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 691 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 692 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 693 | /** |
| 694 | * Read an element declaration. This contains a name and a content spec. |
| 695 | * <!ELEMENT foo EMPTY > |
| 696 | * <!ELEMENT foo (bar?,(baz|quux)) > |
| 697 | * <!ELEMENT foo (#PCDATA|bar)* > |
| 698 | */ |
| 699 | private void readElementDeclaration() throws IOException, XmlPullParserException { |
| 700 | read(START_ELEMENT); |
| 701 | skip(); |
| 702 | readName(); |
| 703 | readContentSpec(); |
| 704 | skip(); |
| 705 | read('>'); |
| 706 | } |
| 707 | |
| 708 | /** |
| 709 | * Read an element content spec. This is a regular expression-like pattern |
| 710 | * of names or other content specs. The following operators are supported: |
| 711 | * sequence: (a,b,c) |
| 712 | * choice: (a|b|c) |
| 713 | * optional: a? |
| 714 | * one or more: a+ |
| 715 | * any number: a* |
| 716 | * |
| 717 | * The special name '#PCDATA' is permitted but only if it is the first |
| 718 | * element of the first group: |
| 719 | * (#PCDATA|a|b) |
| 720 | * |
| 721 | * The top-level element must be either a choice, a sequence, or one of the |
| 722 | * special names EMPTY and ANY. |
| 723 | */ |
| 724 | private void readContentSpec() throws IOException, XmlPullParserException { |
| 725 | // this implementation is very lenient; it scans for balanced parens only |
| 726 | skip(); |
| 727 | int c = peekCharacter(); |
| 728 | if (c == '(') { |
| 729 | int depth = 0; |
| 730 | do { |
| 731 | if (c == '(') { |
| 732 | depth++; |
| 733 | } else if (c == ')') { |
| 734 | depth--; |
| 735 | } |
| 736 | position++; |
| 737 | c = peekCharacter(); |
| 738 | } while (depth > 0); |
| 739 | |
| 740 | if (c == '*' || c == '?' || c == '+') { |
| 741 | position++; |
| 742 | } |
| 743 | } else if (c == EMPTY[0]) { |
| 744 | read(EMPTY); |
| 745 | } else if (c == ANY[0]) { |
| 746 | read(ANY); |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 747 | } else { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 748 | throw new XmlPullParserException("Expected element content spec", this, null); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 749 | } |
| 750 | } |
| 751 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 752 | /** |
| 753 | * Reads an attribute list declaration such as the following: |
| 754 | * <!ATTLIST foo |
| 755 | * bar CDATA #IMPLIED |
| 756 | * quux (a|b|c) "c" |
| 757 | * baz NOTATION (a|b|c) #FIXED "c"> |
| 758 | * |
| 759 | * Each attribute has a name, type and default. |
| 760 | * |
| 761 | * Types are one of the built-in types (CDATA, ID, IDREF, IDREFS, ENTITY, |
| 762 | * ENTITIES, NMTOKEN, or NMTOKENS), an enumerated type "(list|of|options)" |
| 763 | * or NOTATION followed by an enumerated type. |
| 764 | * |
| 765 | * The default is either #REQUIRED, #IMPLIED, #FIXED, a quoted value, or |
| 766 | * #FIXED with a quoted value. |
| 767 | */ |
| 768 | private void readAttributeListDeclaration() throws IOException, XmlPullParserException { |
| 769 | read(START_ATTLIST); |
| 770 | skip(); |
| 771 | String elementName = readName(); |
| 772 | |
| 773 | while (true) { |
| 774 | skip(); |
| 775 | int c = peekCharacter(); |
| 776 | if (c == '>') { |
| 777 | position++; |
| 778 | return; |
| 779 | } |
| 780 | |
| 781 | // attribute name |
| 782 | String attributeName = readName(); |
| 783 | |
| 784 | // attribute type |
| 785 | skip(); |
| 786 | if (position + 1 >= limit && !fillBuffer(2)) { |
| 787 | throw new XmlPullParserException("Malformed attribute list", this, null); |
| 788 | } |
| 789 | if (buffer[position] == NOTATION[0] && buffer[position + 1] == NOTATION[1]) { |
| 790 | read(NOTATION); |
| 791 | skip(); |
| 792 | } |
| 793 | c = peekCharacter(); |
| 794 | if (c == '(') { |
| 795 | position++; |
| 796 | while (true) { |
| 797 | skip(); |
| 798 | readName(); |
| 799 | skip(); |
| 800 | c = peekCharacter(); |
| 801 | if (c == ')') { |
| 802 | position++; |
| 803 | break; |
| 804 | } else if (c == '|') { |
| 805 | position++; |
| 806 | } else { |
| 807 | throw new XmlPullParserException("Malformed attribute type", this, null); |
| 808 | } |
| 809 | } |
| 810 | } else { |
| 811 | readName(); |
| 812 | } |
| 813 | |
| 814 | // default value |
| 815 | skip(); |
| 816 | c = peekCharacter(); |
| 817 | if (c == '#') { |
| 818 | position++; |
| 819 | c = peekCharacter(); |
| 820 | if (c == 'R') { |
| 821 | read(REQUIRED); |
| 822 | } else if (c == 'I') { |
| 823 | read(IMPLIED); |
| 824 | } else if (c == 'F') { |
| 825 | read(FIXED); |
| 826 | } else { |
| 827 | throw new XmlPullParserException("Malformed attribute type", this, null); |
| 828 | } |
| 829 | skip(); |
| 830 | c = peekCharacter(); |
| 831 | } |
| 832 | if (c == '"' || c == '\'') { |
| 833 | position++; |
| 834 | // TODO: does this do escaping correctly? |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 835 | String value = readValue((char) c, true, true, ValueContext.ATTRIBUTE); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 836 | position++; |
| 837 | defineAttributeDefault(elementName, attributeName, value); |
| 838 | } |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | private void defineAttributeDefault(String elementName, String attributeName, String value) { |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 843 | if (defaultAttributes == null) { |
| 844 | defaultAttributes = new HashMap<String, Map<String, String>>(); |
| 845 | } |
| 846 | Map<String, String> elementAttributes = defaultAttributes.get(elementName); |
| 847 | if (elementAttributes == null) { |
| 848 | elementAttributes = new HashMap<String, String>(); |
| 849 | defaultAttributes.put(elementName, elementAttributes); |
| 850 | } |
| 851 | elementAttributes.put(attributeName, value); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 852 | } |
| 853 | |
| 854 | /** |
| 855 | * Read an entity declaration. The value of internal entities are inline: |
| 856 | * <!ENTITY foo "bar"> |
| 857 | * |
| 858 | * The values of external entities must be retrieved by URL or path: |
| 859 | * <!ENTITY foo SYSTEM "http://host/file"> |
| 860 | * <!ENTITY foo PUBLIC "-//Android//Foo//EN" "http://host/file"> |
| 861 | * <!ENTITY foo SYSTEM "../file.png" NDATA png> |
| 862 | * |
| 863 | * Entities may be general or parameterized. Parameterized entities are |
| 864 | * marked by a percent sign. Such entities may only be used in the DTD: |
| 865 | * <!ENTITY % foo "bar"> |
| 866 | */ |
| 867 | private void readEntityDeclaration() throws IOException, XmlPullParserException { |
| 868 | read(START_ENTITY); |
| 869 | boolean generalEntity = true; |
| 870 | |
| 871 | skip(); |
| 872 | if (peekCharacter() == '%') { |
| 873 | generalEntity = false; |
| 874 | position++; |
| 875 | skip(); |
| 876 | } |
| 877 | |
| 878 | String name = readName(); |
| 879 | |
| 880 | skip(); |
| 881 | int quote = peekCharacter(); |
| 882 | if (quote == '"' || quote == '\'') { |
| 883 | position++; |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 884 | String value = readValue((char) quote, true, false, ValueContext.ENTITY_DECLARATION); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 885 | position++; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 886 | if (generalEntity && processDocDecl) { |
| 887 | if (documentEntities == null) { |
| 888 | documentEntities = new HashMap<String, char[]>(); |
| 889 | } |
| 890 | documentEntities.put(name, value.toCharArray()); |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 891 | } |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 892 | } else if (readExternalId(true, false)) { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 893 | skip(); |
| 894 | if (peekCharacter() == NDATA[0]) { |
| 895 | read(NDATA); |
| 896 | skip(); |
| 897 | readName(); |
| 898 | } |
| 899 | } else { |
| 900 | throw new XmlPullParserException("Expected entity value or external ID", this, null); |
| 901 | } |
| 902 | |
| 903 | skip(); |
| 904 | read('>'); |
| 905 | } |
| 906 | |
| 907 | private void readNotationDeclaration() throws IOException, XmlPullParserException { |
| 908 | read(START_NOTATION); |
| 909 | skip(); |
| 910 | readName(); |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 911 | if (!readExternalId(false, false)) { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 912 | throw new XmlPullParserException( |
| 913 | "Expected external ID or public ID for notation", this, null); |
| 914 | } |
| 915 | skip(); |
| 916 | read('>'); |
| 917 | } |
| 918 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 919 | private void readEndTag() throws IOException, XmlPullParserException { |
| 920 | read('<'); |
| 921 | read('/'); |
| 922 | name = readName(); // TODO: pass the expected name in as a hint? |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 923 | skip(); |
| 924 | read('>'); |
| 925 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 926 | int sp = (depth - 1) * 4; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 927 | |
| 928 | if (depth == 0) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 929 | checkRelaxed("read end tag " + name + " with no tags open"); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 930 | type = COMMENT; |
| 931 | return; |
| 932 | } |
| 933 | |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 934 | if (name.equals(elementStack[sp + 3])) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 935 | namespace = elementStack[sp]; |
| 936 | prefix = elementStack[sp + 1]; |
| 937 | name = elementStack[sp + 2]; |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 938 | } else if (!relaxed) { |
| 939 | throw new XmlPullParserException( |
| 940 | "expected: /" + elementStack[sp + 3] + " read: " + name, this, null); |
Elliott Hughes | b211e13 | 2009-11-09 16:06:42 -0800 | [diff] [blame] | 941 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 942 | } |
| 943 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 944 | /** |
| 945 | * Returns the type of the next token. |
| 946 | */ |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 947 | private int peekType(boolean inDeclaration) throws IOException, XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 948 | if (position >= limit && !fillBuffer(1)) { |
| 949 | return END_DOCUMENT; |
| 950 | } |
| 951 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 952 | switch (buffer[position]) { |
| 953 | case '&': |
| 954 | return ENTITY_REF; // & |
| 955 | case '<': |
| 956 | if (position + 3 >= limit && !fillBuffer(4)) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 957 | throw new XmlPullParserException("Dangling <", this, null); |
| 958 | } |
| 959 | |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 960 | switch (buffer[position + 1]) { |
| 961 | case '/': |
| 962 | return END_TAG; // </ |
| 963 | case '?': |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 964 | // we're looking for "<?xml " with case insensitivity |
| 965 | if ((position + 5 < limit || fillBuffer(6)) |
| 966 | && (buffer[position + 2] == 'x' || buffer[position + 2] == 'X') |
| 967 | && (buffer[position + 3] == 'm' || buffer[position + 3] == 'M') |
| 968 | && (buffer[position + 4] == 'l' || buffer[position + 4] == 'L') |
| 969 | && (buffer[position + 5] == ' ')) { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 970 | return XML_DECLARATION; // <?xml |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 971 | } else { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 972 | return PROCESSING_INSTRUCTION; // <? |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 973 | } |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 974 | case '!': |
| 975 | switch (buffer[position + 2]) { |
| 976 | case 'D': |
| 977 | return DOCDECL; // <!D |
| 978 | case '[': |
| 979 | return CDSECT; // <![ |
| 980 | case '-': |
| 981 | return COMMENT; // <!- |
| 982 | case 'E': |
| 983 | switch (buffer[position + 3]) { |
| 984 | case 'L': |
| 985 | return ELEMENTDECL; // <!EL |
| 986 | case 'N': |
| 987 | return ENTITYDECL; // <!EN |
| 988 | default: |
| 989 | throw new XmlPullParserException("Unexpected <!", this, null); |
| 990 | } |
| 991 | case 'A': |
| 992 | return ATTLISTDECL; // <!A |
| 993 | case 'N': |
| 994 | return NOTATIONDECL; // <!N |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 995 | } |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 996 | default: |
| 997 | return START_TAG; // < |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 998 | } |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 999 | case '%': |
| 1000 | return inDeclaration ? PARAMETER_ENTITY_REF : TEXT; |
| 1001 | default: |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1002 | return TEXT; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1003 | } |
| 1004 | } |
| 1005 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1006 | /** |
| 1007 | * Sets name and attributes |
| 1008 | */ |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1009 | private void parseStartTag(boolean xmldecl, boolean throwOnResolveFailure) |
| 1010 | throws IOException, XmlPullParserException { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1011 | if (!xmldecl) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1012 | read('<'); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1013 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1014 | name = readName(); |
| 1015 | attributeCount = 0; |
| 1016 | |
| 1017 | while (true) { |
| 1018 | skip(); |
| 1019 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1020 | if (position >= limit && !fillBuffer(1)) { |
| 1021 | checkRelaxed(UNEXPECTED_EOF); |
| 1022 | return; |
| 1023 | } |
| 1024 | |
| 1025 | int c = buffer[position]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1026 | |
| 1027 | if (xmldecl) { |
| 1028 | if (c == '?') { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1029 | position++; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1030 | read('>'); |
| 1031 | return; |
| 1032 | } |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1033 | } else { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1034 | if (c == '/') { |
| 1035 | degenerated = true; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1036 | position++; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1037 | skip(); |
| 1038 | read('>'); |
| 1039 | break; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1040 | } else if (c == '>') { |
| 1041 | position++; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1042 | break; |
| 1043 | } |
| 1044 | } |
| 1045 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1046 | String attrName = readName(); |
| 1047 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1048 | int i = (attributeCount++) * 4; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1049 | attributes = ensureCapacity(attributes, i + 4); |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1050 | attributes[i] = ""; |
| 1051 | attributes[i + 1] = null; |
| 1052 | attributes[i + 2] = attrName; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1053 | |
| 1054 | skip(); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1055 | if (position >= limit && !fillBuffer(1)) { |
| 1056 | checkRelaxed(UNEXPECTED_EOF); |
| 1057 | return; |
| 1058 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1059 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1060 | if (buffer[position] == '=') { |
| 1061 | position++; |
| 1062 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1063 | skip(); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1064 | if (position >= limit && !fillBuffer(1)) { |
| 1065 | checkRelaxed(UNEXPECTED_EOF); |
| 1066 | return; |
| 1067 | } |
| 1068 | char delimiter = buffer[position]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1069 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1070 | if (delimiter == '\'' || delimiter == '"') { |
| 1071 | position++; |
| 1072 | } else if (relaxed) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1073 | delimiter = ' '; |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 1074 | } else { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1075 | throw new XmlPullParserException("attr value delimiter missing!", this, null); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1076 | } |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 1077 | |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1078 | attributes[i + 3] = readValue(delimiter, true, throwOnResolveFailure, |
| 1079 | ValueContext.ATTRIBUTE); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1080 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1081 | if (delimiter != ' ') { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1082 | position++; // end quote |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1083 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1084 | } else if (relaxed) { |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1085 | attributes[i + 3] = attrName; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1086 | } else { |
| 1087 | checkRelaxed("Attr.value missing f. " + attrName); |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1088 | attributes[i + 3] = attrName; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1089 | } |
| 1090 | } |
| 1091 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1092 | int sp = depth++ * 4; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1093 | elementStack = ensureCapacity(elementStack, sp + 4); |
| 1094 | elementStack[sp + 3] = name; |
| 1095 | |
| 1096 | if (depth >= nspCounts.length) { |
| 1097 | int[] bigger = new int[depth + 4]; |
| 1098 | System.arraycopy(nspCounts, 0, bigger, 0, nspCounts.length); |
| 1099 | nspCounts = bigger; |
| 1100 | } |
| 1101 | |
| 1102 | nspCounts[depth] = nspCounts[depth - 1]; |
| 1103 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1104 | if (processNsp) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1105 | adjustNsp(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1106 | } else { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1107 | namespace = ""; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1108 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1109 | |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1110 | // For consistency with Expat, add default attributes after fixing namespaces. |
| 1111 | if (defaultAttributes != null) { |
| 1112 | Map<String, String> elementDefaultAttributes = defaultAttributes.get(name); |
| 1113 | if (elementDefaultAttributes != null) { |
| 1114 | for (Map.Entry<String, String> entry : elementDefaultAttributes.entrySet()) { |
| 1115 | if (getAttributeValue(null, entry.getKey()) != null) { |
| 1116 | continue; // an explicit value overrides the default |
| 1117 | } |
| 1118 | |
| 1119 | int i = (attributeCount++) * 4; |
| 1120 | attributes = ensureCapacity(attributes, i + 4); |
| 1121 | attributes[i] = ""; |
| 1122 | attributes[i + 1] = null; |
| 1123 | attributes[i + 2] = entry.getKey(); |
| 1124 | attributes[i + 3] = entry.getValue(); |
| 1125 | } |
| 1126 | } |
| 1127 | } |
| 1128 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1129 | elementStack[sp] = namespace; |
| 1130 | elementStack[sp + 1] = prefix; |
| 1131 | elementStack[sp + 2] = name; |
| 1132 | } |
| 1133 | |
Elliott Hughes | f33eae7 | 2010-05-13 12:36:25 -0700 | [diff] [blame] | 1134 | /** |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1135 | * Reads an entity reference from the buffer, resolves it, and writes the |
| 1136 | * resolved entity to {@code out}. If the entity cannot be read or resolved, |
| 1137 | * {@code out} will contain the partial entity reference. |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1138 | */ |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1139 | private void readEntity(StringBuilder out, boolean isEntityToken, boolean throwOnResolveFailure, |
| 1140 | ValueContext valueContext) throws IOException, XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1141 | int start = out.length(); |
Elliott Hughes | f33eae7 | 2010-05-13 12:36:25 -0700 | [diff] [blame] | 1142 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1143 | if (buffer[position++] != '&') { |
| 1144 | throw new AssertionError(); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1145 | } |
| 1146 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1147 | out.append('&'); |
| 1148 | |
| 1149 | while (true) { |
| 1150 | int c = peekCharacter(); |
| 1151 | |
| 1152 | if (c == ';') { |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 1153 | out.append(';'); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1154 | position++; |
| 1155 | break; |
| 1156 | |
| 1157 | } else if (c >= 128 |
| 1158 | || (c >= '0' && c <= '9') |
| 1159 | || (c >= 'a' && c <= 'z') |
| 1160 | || (c >= 'A' && c <= 'Z') |
| 1161 | || c == '_' |
| 1162 | || c == '-' |
| 1163 | || c == '#') { |
| 1164 | position++; |
| 1165 | out.append((char) c); |
| 1166 | |
| 1167 | } else if (relaxed) { |
| 1168 | // intentionally leave the partial reference in 'out' |
| 1169 | return; |
| 1170 | |
| 1171 | } else { |
| 1172 | throw new XmlPullParserException("unterminated entity ref", this, null); |
| 1173 | } |
| 1174 | } |
| 1175 | |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 1176 | String code = out.substring(start + 1, out.length() - 1); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1177 | |
Jesse Wilson | bbf35ec | 2010-11-20 00:44:27 -0800 | [diff] [blame] | 1178 | if (isEntityToken) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1179 | name = code; |
| 1180 | } |
| 1181 | |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 1182 | if (code.startsWith("#")) { |
| 1183 | try { |
| 1184 | int c = code.startsWith("#x") |
| 1185 | ? Integer.parseInt(code.substring(2), 16) |
| 1186 | : Integer.parseInt(code.substring(1)); |
| 1187 | out.delete(start, out.length()); |
| 1188 | out.appendCodePoint(c); |
| 1189 | unresolved = false; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1190 | return; |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 1191 | } catch (NumberFormatException notANumber) { |
| 1192 | throw new XmlPullParserException("Invalid character reference: &" + code); |
| 1193 | } catch (IllegalArgumentException invalidCodePoint) { |
| 1194 | throw new XmlPullParserException("Invalid character reference: &" + code); |
| 1195 | } |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1196 | } |
| 1197 | |
| 1198 | if (valueContext == ValueContext.ENTITY_DECLARATION) { |
| 1199 | // keep the unresolved &code; in the text to resolve later |
| 1200 | return; |
| 1201 | } |
| 1202 | |
| 1203 | String defaultEntity = DEFAULT_ENTITIES.get(code); |
| 1204 | if (defaultEntity != null) { |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 1205 | out.delete(start, out.length()); |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 1206 | unresolved = false; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1207 | out.append(defaultEntity); |
| 1208 | return; |
| 1209 | } |
| 1210 | |
| 1211 | char[] resolved; |
| 1212 | if (documentEntities != null && (resolved = documentEntities.get(code)) != null) { |
| 1213 | out.delete(start, out.length()); |
| 1214 | unresolved = false; |
| 1215 | if (processDocDecl) { |
| 1216 | pushContentSource(resolved); // parse the entity as XML |
| 1217 | } else { |
| 1218 | out.append(resolved); // include the entity value as text |
Jesse Wilson | 3b8cee4 | 2010-11-19 14:47:30 -0800 | [diff] [blame] | 1219 | } |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1220 | return; |
| 1221 | } |
| 1222 | |
| 1223 | // keep the unresolved entity "&code;" in the text for relaxed clients |
| 1224 | unresolved = true; |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1225 | if (throwOnResolveFailure) { |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1226 | checkRelaxed("unresolved: &" + code + ";"); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1227 | } |
| 1228 | } |
| 1229 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1230 | /** |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1231 | * Where a value is found impacts how that value is interpreted. For |
| 1232 | * example, in attributes, "\n" must be replaced with a space character. In |
| 1233 | * text, "]]>" is forbidden. In entity declarations, named references are |
| 1234 | * not resolved. |
| 1235 | */ |
| 1236 | enum ValueContext { |
| 1237 | ATTRIBUTE, |
| 1238 | TEXT, |
| 1239 | ENTITY_DECLARATION |
| 1240 | } |
| 1241 | |
| 1242 | /** |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1243 | * Returns the current text or attribute value. This also has the side |
| 1244 | * effect of setting isWhitespace to false if a non-whitespace character is |
| 1245 | * encountered. |
| 1246 | * |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1247 | * @param delimiter {@code <} for text, {@code "} and {@code '} for quoted |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1248 | * attributes, or a space for unquoted attributes. |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1249 | */ |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1250 | private String readValue(char delimiter, boolean resolveEntities, boolean throwOnResolveFailure, |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1251 | ValueContext valueContext) throws IOException, XmlPullParserException { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1252 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1253 | /* |
| 1254 | * This method returns all of the characters from the current position |
| 1255 | * through to an appropriate delimiter. |
| 1256 | * |
| 1257 | * If we're lucky (which we usually are), we'll return a single slice of |
| 1258 | * the buffer. This fast path avoids allocating a string builder. |
| 1259 | * |
| 1260 | * There are 5 unlucky characters we could encounter: |
| 1261 | * - "&": entities must be resolved. |
| 1262 | * - "<": this isn't permitted in attributes unless relaxed. |
| 1263 | * - "]": this requires a lookahead to defend against the forbidden |
| 1264 | * CDATA section delimiter "]]>". |
| 1265 | * - "\r": If a "\r" is followed by a "\n", we discard the "\r". If it |
| 1266 | * isn't followed by "\n", we replace "\r" with either a "\n" |
| 1267 | * in text nodes or a space in attribute values. |
| 1268 | * - "\n": In attribute values, "\n" must be replaced with a space. |
| 1269 | * |
| 1270 | * We could also get unlucky by needing to refill the buffer midway |
| 1271 | * through the text. |
| 1272 | */ |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1273 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1274 | int start = position; |
| 1275 | StringBuilder result = null; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1276 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1277 | // if a text section was already started, prefix the start |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1278 | if (valueContext == ValueContext.TEXT && text != null) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1279 | result = new StringBuilder(); |
| 1280 | result.append(text); |
| 1281 | } |
| 1282 | |
| 1283 | while (true) { |
| 1284 | |
| 1285 | /* |
| 1286 | * Make sure we have at least a single character to read from the |
| 1287 | * buffer. This mutates the buffer, so save the partial result |
| 1288 | * to the slow path string builder first. |
| 1289 | */ |
| 1290 | if (position >= limit) { |
| 1291 | if (start < position) { |
| 1292 | if (result == null) { |
| 1293 | result = new StringBuilder(); |
| 1294 | } |
| 1295 | result.append(buffer, start, position - start); |
| 1296 | } |
| 1297 | if (!fillBuffer(1)) { |
| 1298 | return result != null ? result.toString() : ""; |
| 1299 | } |
| 1300 | start = position; |
| 1301 | } |
| 1302 | |
| 1303 | char c = buffer[position]; |
| 1304 | |
| 1305 | if (c == delimiter |
| 1306 | || (delimiter == ' ' && (c <= ' ' || c == '>')) |
| 1307 | || c == '&' && !resolveEntities) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1308 | break; |
| 1309 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1310 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1311 | if (c != '\r' |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1312 | && (c != '\n' || valueContext != ValueContext.ATTRIBUTE) |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1313 | && c != '&' |
| 1314 | && c != '<' |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1315 | && (c != ']' || valueContext != ValueContext.TEXT)) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1316 | isWhitespace &= (c <= ' '); |
| 1317 | position++; |
| 1318 | continue; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1319 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1320 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1321 | /* |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1322 | * We've encountered an unlucky character! Convert from fast |
| 1323 | * path to slow path if we haven't done so already. |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1324 | */ |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1325 | if (result == null) { |
| 1326 | result = new StringBuilder(); |
Elliott Hughes | 6bcf32a | 2009-11-16 21:23:11 -0800 | [diff] [blame] | 1327 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1328 | result.append(buffer, start, position - start); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1329 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1330 | if (c == '\r') { |
| 1331 | if ((position + 1 < limit || fillBuffer(2)) && buffer[position + 1] == '\n') { |
| 1332 | position++; |
| 1333 | } |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1334 | c = (valueContext == ValueContext.ATTRIBUTE) ? ' ' : '\n'; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1335 | |
| 1336 | } else if (c == '\n') { |
| 1337 | c = ' '; |
| 1338 | |
| 1339 | } else if (c == '&') { |
| 1340 | isWhitespace = false; // TODO: what if the entity resolves to whitespace? |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1341 | readEntity(result, false, throwOnResolveFailure, valueContext); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1342 | start = position; |
| 1343 | continue; |
| 1344 | |
| 1345 | } else if (c == '<') { |
Jesse Wilson | 7fac047 | 2010-11-23 17:02:32 -0800 | [diff] [blame] | 1346 | if (valueContext == ValueContext.ATTRIBUTE) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1347 | checkRelaxed("Illegal: \"<\" inside attribute value"); |
| 1348 | } |
| 1349 | isWhitespace = false; |
| 1350 | |
| 1351 | } else if (c == ']') { |
| 1352 | if ((position + 2 < limit || fillBuffer(3)) |
| 1353 | && buffer[position + 1] == ']' && buffer[position + 2] == '>') { |
| 1354 | checkRelaxed("Illegal: \"]]>\" outside CDATA section"); |
| 1355 | } |
| 1356 | isWhitespace = false; |
| 1357 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1358 | } else { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1359 | throw new AssertionError(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1360 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1361 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1362 | position++; |
| 1363 | result.append(c); |
| 1364 | start = position; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1365 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1366 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1367 | if (result == null) { |
Jesse Wilson | a78c2aa | 2010-11-14 12:01:08 -0800 | [diff] [blame] | 1368 | return stringPool.get(buffer, start, position - start); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1369 | } else { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1370 | result.append(buffer, start, position - start); |
| 1371 | return result.toString(); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1372 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1373 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1374 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1375 | private void read(char expected) throws IOException, XmlPullParserException { |
| 1376 | int c = peekCharacter(); |
| 1377 | if (c != expected) { |
| 1378 | checkRelaxed("expected: '" + expected + "' actual: '" + ((char) c) + "'"); |
| 1379 | } |
| 1380 | position++; |
| 1381 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1382 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1383 | private void read(char[] chars) throws IOException, XmlPullParserException { |
| 1384 | if (position + chars.length >= limit && !fillBuffer(chars.length)) { |
| 1385 | checkRelaxed("expected: '" + new String(chars) + "' but was EOF"); |
| 1386 | return; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1387 | } |
| 1388 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1389 | // TODO: replace with Arrays.equals(buffer, position, delimiter, 0, delimiter.length) |
| 1390 | // when the VM has better method inlining |
| 1391 | for (int i = 0; i < chars.length; i++) { |
| 1392 | if (buffer[position + i] != chars[i]) { |
| 1393 | checkRelaxed("expected: \"" + new String(chars) + "\" but was \"" |
| 1394 | + new String(buffer, position, chars.length) + "...\""); |
| 1395 | } |
| 1396 | } |
| 1397 | |
| 1398 | position += chars.length; |
| 1399 | } |
| 1400 | |
| 1401 | private int peekCharacter() throws IOException, XmlPullParserException { |
| 1402 | if (position < limit || fillBuffer(1)) { |
| 1403 | return buffer[position]; |
| 1404 | } |
| 1405 | return -1; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1406 | } |
| 1407 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1408 | /** |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1409 | * Returns true once {@code limit - position >= minimum}. If the data is |
| 1410 | * exhausted before that many characters are available, this returns |
| 1411 | * false. |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1412 | */ |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1413 | private boolean fillBuffer(int minimum) throws IOException, XmlPullParserException { |
| 1414 | // If we've exhausted the current content source, remove it |
| 1415 | while (nextContentSource != null) { |
| 1416 | if (position < limit) { |
| 1417 | throw new XmlPullParserException("Unbalanced entity!", this, null); |
| 1418 | } |
| 1419 | popContentSource(); |
| 1420 | if (limit - position >= minimum) { |
| 1421 | return true; |
| 1422 | } |
| 1423 | } |
| 1424 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1425 | // Before clobbering the old characters, update where buffer starts |
| 1426 | for (int i = 0; i < position; i++) { |
| 1427 | if (buffer[i] == '\n') { |
| 1428 | bufferStartLine++; |
| 1429 | bufferStartColumn = 0; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1430 | } else { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1431 | bufferStartColumn++; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1432 | } |
| 1433 | } |
| 1434 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1435 | if (limit != position) { |
| 1436 | limit -= position; |
| 1437 | System.arraycopy(buffer, position, buffer, 0, limit); |
| 1438 | } else { |
| 1439 | limit = 0; |
| 1440 | } |
| 1441 | |
| 1442 | position = 0; |
| 1443 | int total; |
| 1444 | while ((total = reader.read(buffer, limit, buffer.length - limit)) != -1) { |
| 1445 | limit += total; |
| 1446 | if (limit >= minimum) { |
| 1447 | return true; |
| 1448 | } |
| 1449 | } |
| 1450 | return false; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1451 | } |
| 1452 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1453 | /** |
| 1454 | * Returns an element or attribute name. This is always non-empty for |
| 1455 | * non-relaxed parsers. |
| 1456 | */ |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1457 | private String readName() throws IOException, XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1458 | if (position >= limit && !fillBuffer(1)) { |
| 1459 | checkRelaxed("name expected"); |
| 1460 | return ""; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1461 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1462 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1463 | int start = position; |
| 1464 | StringBuilder result = null; |
| 1465 | |
| 1466 | // read the first character |
| 1467 | char c = buffer[position]; |
| 1468 | if ((c >= 'a' && c <= 'z') |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1469 | || (c >= 'A' && c <= 'Z') |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1470 | || c == '_' |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1471 | || c == ':' |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1472 | || c >= '\u00c0' // TODO: check the XML spec |
| 1473 | || relaxed) { |
| 1474 | position++; |
| 1475 | } else { |
| 1476 | checkRelaxed("name expected"); |
| 1477 | return ""; |
| 1478 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1479 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1480 | while (true) { |
| 1481 | /* |
| 1482 | * Make sure we have at least a single character to read from the |
| 1483 | * buffer. This mutates the buffer, so save the partial result |
| 1484 | * to the slow path string builder first. |
| 1485 | */ |
| 1486 | if (position >= limit) { |
| 1487 | if (result == null) { |
| 1488 | result = new StringBuilder(); |
| 1489 | } |
| 1490 | result.append(buffer, start, position - start); |
| 1491 | if (!fillBuffer(1)) { |
| 1492 | return result.toString(); |
| 1493 | } |
| 1494 | start = position; |
| 1495 | } |
| 1496 | |
| 1497 | // read another character |
| 1498 | c = buffer[position]; |
| 1499 | if ((c >= 'a' && c <= 'z') |
| 1500 | || (c >= 'A' && c <= 'Z') |
| 1501 | || (c >= '0' && c <= '9') |
| 1502 | || c == '_' |
| 1503 | || c == '-' |
| 1504 | || c == ':' |
| 1505 | || c == '.' |
| 1506 | || c >= '\u00b7') { // TODO: check the XML spec |
| 1507 | position++; |
| 1508 | continue; |
| 1509 | } |
| 1510 | |
| 1511 | // we encountered a non-name character. done! |
| 1512 | if (result == null) { |
Jesse Wilson | a78c2aa | 2010-11-14 12:01:08 -0800 | [diff] [blame] | 1513 | return stringPool.get(buffer, start, position - start); |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1514 | } else { |
| 1515 | result.append(buffer, start, position - start); |
| 1516 | return result.toString(); |
| 1517 | } |
| 1518 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1519 | } |
| 1520 | |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1521 | private void skip() throws IOException, XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1522 | while (position < limit || fillBuffer(1)) { |
| 1523 | int c = buffer[position]; |
| 1524 | if (c > ' ') { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1525 | break; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1526 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1527 | position++; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1528 | } |
| 1529 | } |
| 1530 | |
| 1531 | // public part starts here... |
| 1532 | |
| 1533 | public void setInput(Reader reader) throws XmlPullParserException { |
| 1534 | this.reader = reader; |
| 1535 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1536 | type = START_DOCUMENT; |
| 1537 | name = null; |
| 1538 | namespace = null; |
| 1539 | degenerated = false; |
| 1540 | attributeCount = -1; |
| 1541 | encoding = null; |
| 1542 | version = null; |
| 1543 | standalone = null; |
| 1544 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1545 | if (reader == null) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1546 | return; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1547 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1548 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1549 | position = 0; |
| 1550 | limit = 0; |
| 1551 | bufferStartLine = 0; |
| 1552 | bufferStartColumn = 0; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1553 | depth = 0; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1554 | documentEntities = null; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1555 | } |
| 1556 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1557 | public void setInput(InputStream is, String _enc) throws XmlPullParserException { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1558 | position = 0; |
| 1559 | limit = 0; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1560 | String enc = _enc; |
| 1561 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1562 | if (is == null) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1563 | throw new IllegalArgumentException(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1564 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1565 | |
| 1566 | try { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1567 | if (enc == null) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1568 | // read the four bytes looking for an indication of the encoding in use |
| 1569 | int firstFourBytes = 0; |
| 1570 | while (limit < 4) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1571 | int i = is.read(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1572 | if (i == -1) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1573 | break; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1574 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1575 | firstFourBytes = (firstFourBytes << 8) | i; |
| 1576 | buffer[limit++] = (char) i; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1577 | } |
| 1578 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1579 | if (limit == 4) { |
| 1580 | switch (firstFourBytes) { |
| 1581 | case 0x00000FEFF: // UTF-32BE BOM |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1582 | enc = "UTF-32BE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1583 | limit = 0; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1584 | break; |
| 1585 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1586 | case 0x0FFFE0000: // UTF-32LE BOM |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1587 | enc = "UTF-32LE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1588 | limit = 0; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1589 | break; |
| 1590 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1591 | case 0x0000003c: // '>' in UTF-32BE |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1592 | enc = "UTF-32BE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1593 | buffer[0] = '<'; |
| 1594 | limit = 1; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1595 | break; |
| 1596 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1597 | case 0x03c000000: // '<' in UTF-32LE |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1598 | enc = "UTF-32LE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1599 | buffer[0] = '<'; |
| 1600 | limit = 1; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1601 | break; |
| 1602 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1603 | case 0x0003c003f: // "<?" in UTF-16BE |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1604 | enc = "UTF-16BE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1605 | buffer[0] = '<'; |
| 1606 | buffer[1] = '?'; |
| 1607 | limit = 2; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1608 | break; |
| 1609 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1610 | case 0x03c003f00: // "<?" in UTF-16LE |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1611 | enc = "UTF-16LE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1612 | buffer[0] = '<'; |
| 1613 | buffer[1] = '?'; |
| 1614 | limit = 2; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1615 | break; |
| 1616 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1617 | case 0x03c3f786d: // "<?xm" in ASCII etc. |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1618 | while (true) { |
| 1619 | int i = is.read(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1620 | if (i == -1) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1621 | break; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1622 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1623 | buffer[limit++] = (char) i; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1624 | if (i == '>') { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1625 | String s = new String(buffer, 0, limit); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1626 | int i0 = s.indexOf("encoding"); |
| 1627 | if (i0 != -1) { |
| 1628 | while (s.charAt(i0) != '"' |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1629 | && s.charAt(i0) != '\'') { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1630 | i0++; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1631 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1632 | char deli = s.charAt(i0++); |
| 1633 | int i1 = s.indexOf(deli, i0); |
| 1634 | enc = s.substring(i0, i1); |
| 1635 | } |
| 1636 | break; |
| 1637 | } |
| 1638 | } |
| 1639 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1640 | default: |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1641 | // handle a byte order mark followed by something other than <? |
| 1642 | if ((firstFourBytes & 0x0ffff0000) == 0x0FEFF0000) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1643 | enc = "UTF-16BE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1644 | buffer[0] = (char) ((buffer[2] << 8) | buffer[3]); |
| 1645 | limit = 1; |
| 1646 | } else if ((firstFourBytes & 0x0ffff0000) == 0x0fffe0000) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1647 | enc = "UTF-16LE"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1648 | buffer[0] = (char) ((buffer[3] << 8) | buffer[2]); |
| 1649 | limit = 1; |
| 1650 | } else if ((firstFourBytes & 0x0ffffff00) == 0x0EFBBBF00) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1651 | enc = "UTF-8"; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1652 | buffer[0] = buffer[3]; |
| 1653 | limit = 1; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1654 | } |
| 1655 | } |
| 1656 | } |
| 1657 | } |
| 1658 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1659 | if (enc == null) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1660 | enc = "UTF-8"; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1661 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1662 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1663 | int sc = limit; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1664 | setInput(new InputStreamReader(is, enc)); |
| 1665 | encoding = _enc; |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1666 | limit = sc; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1667 | } catch (Exception e) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1668 | throw new XmlPullParserException("Invalid stream or encoding: " + e, this, e); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1669 | } |
| 1670 | } |
| 1671 | |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1672 | public void close() throws IOException { |
| 1673 | if (reader != null) { |
| 1674 | reader.close(); |
| 1675 | } |
| 1676 | } |
| 1677 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1678 | public boolean getFeature(String feature) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1679 | if (XmlPullParser.FEATURE_PROCESS_NAMESPACES.equals(feature)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1680 | return processNsp; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1681 | } else if (FEATURE_RELAXED.equals(feature)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1682 | return relaxed; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1683 | } else if (FEATURE_PROCESS_DOCDECL.equals(feature)) { |
| 1684 | return processDocDecl; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1685 | } else { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1686 | return false; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1687 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1688 | } |
| 1689 | |
| 1690 | public String getInputEncoding() { |
| 1691 | return encoding; |
| 1692 | } |
| 1693 | |
| 1694 | public void defineEntityReplacementText(String entity, String value) |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1695 | throws XmlPullParserException { |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1696 | if (processDocDecl) { |
| 1697 | throw new IllegalStateException( |
| 1698 | "Entity replacement text may not be defined with DOCTYPE processing enabled."); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1699 | } |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1700 | if (reader == null) { |
| 1701 | throw new IllegalStateException( |
| 1702 | "Entity replacement text must be defined after setInput()"); |
| 1703 | } |
| 1704 | if (documentEntities == null) { |
| 1705 | documentEntities = new HashMap<String, char[]>(); |
| 1706 | } |
| 1707 | documentEntities.put(entity, value.toCharArray()); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1708 | } |
| 1709 | |
| 1710 | public Object getProperty(String property) { |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1711 | if (property.equals(PROPERTY_XMLDECL_VERSION)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1712 | return version; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1713 | } else if (property.equals(PROPERTY_XMLDECL_STANDALONE)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1714 | return standalone; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1715 | } else if (property.equals(PROPERTY_LOCATION)) { |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 1716 | return location != null ? location : reader.toString(); |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 1717 | } else { |
| 1718 | return null; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1719 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1720 | } |
| 1721 | |
Jesse Wilson | 086fd02 | 2010-11-29 16:01:57 -0800 | [diff] [blame] | 1722 | /** |
| 1723 | * Returns the root element's name if it was declared in the DTD. This |
| 1724 | * equals the first tag's name for valid documents. |
| 1725 | */ |
| 1726 | public String getRootElementName() { |
| 1727 | return rootElementName; |
| 1728 | } |
| 1729 | |
| 1730 | /** |
| 1731 | * Returns the document's system ID if it was declared. This is typically a |
| 1732 | * string like {@code http://www.w3.org/TR/html4/strict.dtd}. |
| 1733 | */ |
| 1734 | public String getSystemId() { |
| 1735 | return systemId; |
| 1736 | } |
| 1737 | |
| 1738 | /** |
| 1739 | * Returns the document's public ID if it was declared. This is typically a |
| 1740 | * string like {@code -//W3C//DTD HTML 4.01//EN}. |
| 1741 | */ |
| 1742 | public String getPublicId() { |
| 1743 | return publicId; |
| 1744 | } |
| 1745 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1746 | public int getNamespaceCount(int depth) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1747 | if (depth > this.depth) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1748 | throw new IndexOutOfBoundsException(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1749 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1750 | return nspCounts[depth]; |
| 1751 | } |
| 1752 | |
| 1753 | public String getNamespacePrefix(int pos) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1754 | return nspStack[pos * 2]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1755 | } |
| 1756 | |
| 1757 | public String getNamespaceUri(int pos) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1758 | return nspStack[(pos * 2) + 1]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1759 | } |
| 1760 | |
| 1761 | public String getNamespace(String prefix) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1762 | if ("xml".equals(prefix)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1763 | return "http://www.w3.org/XML/1998/namespace"; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1764 | } |
| 1765 | if ("xmlns".equals(prefix)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1766 | return "http://www.w3.org/2000/xmlns/"; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1767 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1768 | |
| 1769 | for (int i = (getNamespaceCount(depth) << 1) - 2; i >= 0; i -= 2) { |
| 1770 | if (prefix == null) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1771 | if (nspStack[i] == null) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1772 | return nspStack[i + 1]; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1773 | } |
| 1774 | } else if (prefix.equals(nspStack[i])) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1775 | return nspStack[i + 1]; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1776 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1777 | } |
| 1778 | return null; |
| 1779 | } |
| 1780 | |
| 1781 | public int getDepth() { |
| 1782 | return depth; |
| 1783 | } |
| 1784 | |
| 1785 | public String getPositionDescription() { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1786 | StringBuilder buf = new StringBuilder(type < TYPES.length ? TYPES[type] : "unknown"); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1787 | buf.append(' '); |
| 1788 | |
| 1789 | if (type == START_TAG || type == END_TAG) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1790 | if (degenerated) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1791 | buf.append("(empty) "); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1792 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1793 | buf.append('<'); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1794 | if (type == END_TAG) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1795 | buf.append('/'); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1796 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1797 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1798 | if (prefix != null) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1799 | buf.append("{" + namespace + "}" + prefix + ":"); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1800 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1801 | buf.append(name); |
| 1802 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1803 | int cnt = attributeCount * 4; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1804 | for (int i = 0; i < cnt; i += 4) { |
| 1805 | buf.append(' '); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1806 | if (attributes[i + 1] != null) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1807 | buf.append("{" + attributes[i] + "}" + attributes[i + 1] + ":"); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1808 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1809 | buf.append(attributes[i + 2] + "='" + attributes[i + 3] + "'"); |
| 1810 | } |
| 1811 | |
| 1812 | buf.append('>'); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1813 | } else if (type == IGNORABLE_WHITESPACE) { |
| 1814 | ; |
| 1815 | } else if (type != TEXT) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1816 | buf.append(getText()); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1817 | } else if (isWhitespace) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1818 | buf.append("(whitespace)"); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1819 | } else { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1820 | String text = getText(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1821 | if (text.length() > 16) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1822 | text = text.substring(0, 16) + "..."; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1823 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1824 | buf.append(text); |
| 1825 | } |
| 1826 | |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1827 | buf.append("@" + getLineNumber() + ":" + getColumnNumber()); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1828 | if (location != null) { |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 1829 | buf.append(" in "); |
| 1830 | buf.append(location); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1831 | } else if (reader != null) { |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 1832 | buf.append(" in "); |
| 1833 | buf.append(reader.toString()); |
| 1834 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1835 | return buf.toString(); |
| 1836 | } |
| 1837 | |
| 1838 | public int getLineNumber() { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1839 | int result = bufferStartLine; |
| 1840 | for (int i = 0; i < position; i++) { |
| 1841 | if (buffer[i] == '\n') { |
| 1842 | result++; |
| 1843 | } |
| 1844 | } |
| 1845 | return result + 1; // the first line is '1' |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1846 | } |
| 1847 | |
| 1848 | public int getColumnNumber() { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1849 | int result = bufferStartColumn; |
| 1850 | for (int i = 0; i < position; i++) { |
| 1851 | if (buffer[i] == '\n') { |
| 1852 | result = 0; |
| 1853 | } else { |
| 1854 | result++; |
| 1855 | } |
| 1856 | } |
| 1857 | return result + 1; // the first column is '1' |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1858 | } |
| 1859 | |
| 1860 | public boolean isWhitespace() throws XmlPullParserException { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1861 | if (type != TEXT && type != IGNORABLE_WHITESPACE && type != CDSECT) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1862 | throw new XmlPullParserException(ILLEGAL_TYPE, this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1863 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1864 | return isWhitespace; |
| 1865 | } |
| 1866 | |
| 1867 | public String getText() { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1868 | if (type < TEXT || (type == ENTITY_REF && unresolved)) { |
| 1869 | return null; |
| 1870 | } else if (text == null) { |
| 1871 | return ""; |
| 1872 | } else { |
| 1873 | return text; |
| 1874 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1875 | } |
| 1876 | |
| 1877 | public char[] getTextCharacters(int[] poslen) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1878 | String text = getText(); |
| 1879 | if (text == null) { |
| 1880 | poslen[0] = -1; |
| 1881 | poslen[1] = -1; |
| 1882 | return null; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1883 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1884 | char[] result = text.toCharArray(); |
| 1885 | poslen[0] = 0; |
| 1886 | poslen[1] = result.length; |
| 1887 | return result; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1888 | } |
| 1889 | |
| 1890 | public String getNamespace() { |
| 1891 | return namespace; |
| 1892 | } |
| 1893 | |
| 1894 | public String getName() { |
| 1895 | return name; |
| 1896 | } |
| 1897 | |
| 1898 | public String getPrefix() { |
| 1899 | return prefix; |
| 1900 | } |
| 1901 | |
| 1902 | public boolean isEmptyElementTag() throws XmlPullParserException { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1903 | if (type != START_TAG) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1904 | throw new XmlPullParserException(ILLEGAL_TYPE, this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1905 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1906 | return degenerated; |
| 1907 | } |
| 1908 | |
| 1909 | public int getAttributeCount() { |
| 1910 | return attributeCount; |
| 1911 | } |
| 1912 | |
| 1913 | public String getAttributeType(int index) { |
| 1914 | return "CDATA"; |
| 1915 | } |
| 1916 | |
| 1917 | public boolean isAttributeDefault(int index) { |
| 1918 | return false; |
| 1919 | } |
| 1920 | |
| 1921 | public String getAttributeNamespace(int index) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1922 | if (index >= attributeCount) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1923 | throw new IndexOutOfBoundsException(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1924 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1925 | return attributes[index * 4]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1926 | } |
| 1927 | |
| 1928 | public String getAttributeName(int index) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1929 | if (index >= attributeCount) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1930 | throw new IndexOutOfBoundsException(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1931 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1932 | return attributes[(index * 4) + 2]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1933 | } |
| 1934 | |
| 1935 | public String getAttributePrefix(int index) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1936 | if (index >= attributeCount) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1937 | throw new IndexOutOfBoundsException(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1938 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1939 | return attributes[(index * 4) + 1]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1940 | } |
| 1941 | |
| 1942 | public String getAttributeValue(int index) { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1943 | if (index >= attributeCount) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1944 | throw new IndexOutOfBoundsException(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1945 | } |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1946 | return attributes[(index * 4) + 3]; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1947 | } |
| 1948 | |
| 1949 | public String getAttributeValue(String namespace, String name) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1950 | for (int i = (attributeCount * 4) - 4; i >= 0; i -= 4) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1951 | if (attributes[i + 2].equals(name) |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1952 | && (namespace == null || attributes[i].equals(namespace))) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1953 | return attributes[i + 3]; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1954 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1955 | } |
| 1956 | |
| 1957 | return null; |
| 1958 | } |
| 1959 | |
| 1960 | public int getEventType() throws XmlPullParserException { |
| 1961 | return type; |
| 1962 | } |
| 1963 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1964 | // utility methods to make XML parsing easier ... |
| 1965 | |
| 1966 | public int nextTag() throws XmlPullParserException, IOException { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1967 | next(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1968 | if (type == TEXT && isWhitespace) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1969 | next(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1970 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1971 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1972 | if (type != END_TAG && type != START_TAG) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1973 | throw new XmlPullParserException("unexpected type", this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1974 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1975 | |
| 1976 | return type; |
| 1977 | } |
| 1978 | |
| 1979 | public void require(int type, String namespace, String name) |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1980 | throws XmlPullParserException, IOException { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1981 | |
| 1982 | if (type != this.type |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1983 | || (namespace != null && !namespace.equals(getNamespace())) |
| 1984 | || (name != null && !name.equals(getName()))) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1985 | throw new XmlPullParserException( |
| 1986 | "expected: " + TYPES[type] + " {" + namespace + "}" + name, this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1987 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1988 | } |
| 1989 | |
| 1990 | public String nextText() throws XmlPullParserException, IOException { |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1991 | if (type != START_TAG) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 1992 | throw new XmlPullParserException("precondition: START_TAG", this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 1993 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1994 | |
| 1995 | next(); |
| 1996 | |
| 1997 | String result; |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1998 | if (type == TEXT) { |
| 1999 | result = getText(); |
| 2000 | next(); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 2001 | } else { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2002 | result = ""; |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 2003 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2004 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 2005 | if (type != END_TAG) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 2006 | throw new XmlPullParserException("END_TAG expected", this, null); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 2007 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2008 | |
| 2009 | return result; |
| 2010 | } |
| 2011 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 2012 | public void setFeature(String feature, boolean value) throws XmlPullParserException { |
| 2013 | if (XmlPullParser.FEATURE_PROCESS_NAMESPACES.equals(feature)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2014 | processNsp = value; |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 2015 | } else if (XmlPullParser.FEATURE_PROCESS_DOCDECL.equals(feature)) { |
| 2016 | processDocDecl = value; |
| 2017 | } else if (FEATURE_RELAXED.equals(feature)) { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2018 | relaxed = value; |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 2019 | } else { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 2020 | throw new XmlPullParserException("unsupported feature: " + feature, this, null); |
Elliott Hughes | d21d78f | 2010-05-13 11:32:57 -0700 | [diff] [blame] | 2021 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2022 | } |
| 2023 | |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 2024 | public void setProperty(String property, Object value) throws XmlPullParserException { |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 2025 | if (property.equals(PROPERTY_LOCATION)) { |
Jesse Wilson | fda724d | 2010-11-04 18:32:03 -0700 | [diff] [blame] | 2026 | location = String.valueOf(value); |
Jesse Wilson | ccd79e2 | 2010-11-04 14:02:20 -0700 | [diff] [blame] | 2027 | } else { |
| 2028 | throw new XmlPullParserException("unsupported property: " + property); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2029 | } |
| 2030 | } |
Jesse Wilson | 76c8588 | 2010-11-24 18:26:03 -0800 | [diff] [blame] | 2031 | |
| 2032 | /** |
| 2033 | * A chain of buffers containing XML content. Each content source contains |
| 2034 | * the parser's primary read buffer or the characters of entities actively |
| 2035 | * being parsed. |
| 2036 | * |
| 2037 | * <p>For example, note the buffers needed to parse this document: |
| 2038 | * <pre> {@code |
| 2039 | * <!DOCTYPE foo [ |
| 2040 | * <!ENTITY baz "ghi"> |
| 2041 | * <!ENTITY bar "def &baz; jkl"> |
| 2042 | * ]> |
| 2043 | * <foo>abc &bar; mno</foo> |
| 2044 | * }</pre> |
| 2045 | * |
| 2046 | * <p>Things get interesting when the bar entity is encountered. At that |
| 2047 | * point two buffers are active: |
| 2048 | * <ol> |
| 2049 | * <li>The value for the bar entity, containing {@code "def &baz; jkl"} |
| 2050 | * <li>The parser's primary read buffer, containing {@code " mno</foo>"} |
| 2051 | * </ol> |
| 2052 | * <p>The parser will return the characters {@code "def "} from the bar |
| 2053 | * entity's buffer, and then it will encounter the baz entity. To handle |
| 2054 | * that, three buffers will be active: |
| 2055 | * <ol> |
| 2056 | * <li>The value for the baz entity, containing {@code "ghi"} |
| 2057 | * <li>The remaining value for the bar entity, containing {@code " jkl"} |
| 2058 | * <li>The parser's primary read buffer, containing {@code " mno</foo>"} |
| 2059 | * </ol> |
| 2060 | * <p>The parser will then return the characters {@code ghi jkl mno} in that |
| 2061 | * sequence by reading each buffer in sequence. |
| 2062 | */ |
| 2063 | static class ContentSource { |
| 2064 | private final ContentSource next; |
| 2065 | private final char[] buffer; |
| 2066 | private final int position; |
| 2067 | private final int limit; |
| 2068 | ContentSource(ContentSource next, char[] buffer, int position, int limit) { |
| 2069 | this.next = next; |
| 2070 | this.buffer = buffer; |
| 2071 | this.position = position; |
| 2072 | this.limit = limit; |
| 2073 | } |
| 2074 | } |
| 2075 | |
| 2076 | /** |
| 2077 | * Prepends the characters of {@code newBuffer} to be read before the |
| 2078 | * current buffer. |
| 2079 | */ |
| 2080 | private void pushContentSource(char[] newBuffer) { |
| 2081 | nextContentSource = new ContentSource(nextContentSource, buffer, position, limit); |
| 2082 | buffer = newBuffer; |
| 2083 | position = 0; |
| 2084 | limit = newBuffer.length; |
| 2085 | } |
| 2086 | |
| 2087 | /** |
| 2088 | * Replaces the current exhausted buffer with the next buffer in the chain. |
| 2089 | */ |
| 2090 | private void popContentSource() { |
| 2091 | buffer = nextContentSource.buffer; |
| 2092 | position = nextContentSource.position; |
| 2093 | limit = nextContentSource.limit; |
| 2094 | nextContentSource = nextContentSource.next; |
| 2095 | } |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 2096 | } |