001/* 002 * ModeShape (http://www.modeshape.org) 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.modeshape.common.text; 017 018import java.text.CharacterIterator; 019import java.text.StringCharacterIterator; 020import java.util.BitSet; 021import org.modeshape.common.annotation.Immutable; 022 023/** 024 * An {@link TextEncoder encoder} and {@link TextDecoder decoder} for XML element and attribute names. 025 * <p> 026 * Any UTF-16 unicode character that is not a valid XML name character according to the <a 027 * href="http://www.w3.org/TR/REC-xml/#sec-common-syn">World Wide Web Consortium (W3C) Extensible Markup Language (XML) 1.0 028 * (Fourth Edition) Recommendation</a> is escaped as <code>_xHHHH_</code>, where <code>HHHH</code> stands for the four-digit 029 * hexadecimal UTF-16 unicode value for the character in the most significant bit first order. For example, the name "Customer_ID" 030 * is encoded as "Customer_x0020_ID". 031 * </p> 032 * <p> 033 * Decoding transforms every <code>_xHHHH_</code> encoding sequences back into the UTF-16 character. Note that 034 * {@link #decode(String) decoding} can be safely done on any XML name, even if the name does not contain any encoded sequences. 035 * </p> 036 */ 037@Immutable 038public class XmlNameEncoder implements TextDecoder, TextEncoder { 039 040 private static final BitSet XML_NAME_ALLOWED_CHARACTERS = new BitSet(2 ^ 16); 041 042 /** 043 * @see "<a href=http://www.w3.org/TR/xml/#NT-NameStartChar/>http://www.w3.org/TR/xml/#NT-NameStartChar</a>" 044 */ 045 private static final BitSet XML_NAME_START_ALLOWED_CHARACTERS = new BitSet(2 ^ 16); 046 047 static { 048 // Initialize the unescaped bitset ... 049 050 // XML Names may contain: Letter | Digit | '.' | '-' | '_' | ':' | CombiningChar | Extender 051 XML_NAME_ALLOWED_CHARACTERS.set('.'); 052 XML_NAME_ALLOWED_CHARACTERS.set('-'); 053 XML_NAME_ALLOWED_CHARACTERS.set('_'); 054 XML_NAME_ALLOWED_CHARACTERS.set(':'); 055 056 // XML Base Character Set 057 XML_NAME_ALLOWED_CHARACTERS.set('\u0041', '\u005A' + 1); 058 XML_NAME_ALLOWED_CHARACTERS.set('\u0061', '\u007A' + 1); 059 XML_NAME_ALLOWED_CHARACTERS.set('\u00C0', '\u00D6' + 1); 060 XML_NAME_ALLOWED_CHARACTERS.set('\u00D8', '\u00F6' + 1); 061 XML_NAME_ALLOWED_CHARACTERS.set('\u00F8', '\u00FF' + 1); 062 XML_NAME_ALLOWED_CHARACTERS.set('\u0100', '\u0131' + 1); 063 XML_NAME_ALLOWED_CHARACTERS.set('\u0134', '\u013E' + 1); 064 XML_NAME_ALLOWED_CHARACTERS.set('\u0141', '\u0148' + 1); 065 XML_NAME_ALLOWED_CHARACTERS.set('\u014A', '\u017E' + 1); 066 XML_NAME_ALLOWED_CHARACTERS.set('\u0180', '\u01C3' + 1); 067 XML_NAME_ALLOWED_CHARACTERS.set('\u01CD', '\u01F0' + 1); 068 XML_NAME_ALLOWED_CHARACTERS.set('\u01F4', '\u01F5' + 1); 069 XML_NAME_ALLOWED_CHARACTERS.set('\u01FA', '\u0217' + 1); 070 XML_NAME_ALLOWED_CHARACTERS.set('\u0250', '\u02A8' + 1); 071 XML_NAME_ALLOWED_CHARACTERS.set('\u02BB', '\u02C1' + 1); 072 XML_NAME_ALLOWED_CHARACTERS.set('\u0386'); 073 XML_NAME_ALLOWED_CHARACTERS.set('\u0388', '\u038A' + 1); 074 XML_NAME_ALLOWED_CHARACTERS.set('\u038C'); 075 XML_NAME_ALLOWED_CHARACTERS.set('\u038E', '\u03A1' + 1); 076 XML_NAME_ALLOWED_CHARACTERS.set('\u03A3', '\u03CE' + 1); 077 XML_NAME_ALLOWED_CHARACTERS.set('\u03D0', '\u03D6' + 1); 078 XML_NAME_ALLOWED_CHARACTERS.set('\u03DA'); 079 XML_NAME_ALLOWED_CHARACTERS.set('\u03DC'); 080 XML_NAME_ALLOWED_CHARACTERS.set('\u03DE'); 081 XML_NAME_ALLOWED_CHARACTERS.set('\u03E0'); 082 XML_NAME_ALLOWED_CHARACTERS.set('\u03E2', '\u03F3' + 1); 083 XML_NAME_ALLOWED_CHARACTERS.set('\u0401', '\u040C' + 1); 084 XML_NAME_ALLOWED_CHARACTERS.set('\u040E', '\u044F' + 1); 085 XML_NAME_ALLOWED_CHARACTERS.set('\u0451', '\u045C' + 1); 086 XML_NAME_ALLOWED_CHARACTERS.set('\u045E', '\u0481' + 1); 087 XML_NAME_ALLOWED_CHARACTERS.set('\u0490', '\u04C4' + 1); 088 XML_NAME_ALLOWED_CHARACTERS.set('\u04C7', '\u04C8' + 1); 089 XML_NAME_ALLOWED_CHARACTERS.set('\u04CB', '\u04CC' + 1); 090 XML_NAME_ALLOWED_CHARACTERS.set('\u04D0', '\u04EB' + 1); 091 XML_NAME_ALLOWED_CHARACTERS.set('\u04EE', '\u04F5' + 1); 092 XML_NAME_ALLOWED_CHARACTERS.set('\u04F8', '\u04F9' + 1); 093 XML_NAME_ALLOWED_CHARACTERS.set('\u0531', '\u0556' + 1); 094 XML_NAME_ALLOWED_CHARACTERS.set('\u0559'); 095 XML_NAME_ALLOWED_CHARACTERS.set('\u0561', '\u0586' + 1); 096 XML_NAME_ALLOWED_CHARACTERS.set('\u05D0', '\u05EA' + 1); 097 XML_NAME_ALLOWED_CHARACTERS.set('\u05F0', '\u05F2' + 1); 098 XML_NAME_ALLOWED_CHARACTERS.set('\u0621', '\u063A' + 1); 099 XML_NAME_ALLOWED_CHARACTERS.set('\u0641', '\u064A' + 1); 100 XML_NAME_ALLOWED_CHARACTERS.set('\u0671', '\u06B7' + 1); 101 XML_NAME_ALLOWED_CHARACTERS.set('\u06BA', '\u06BE' + 1); 102 XML_NAME_ALLOWED_CHARACTERS.set('\u06C0', '\u06CE' + 1); 103 XML_NAME_ALLOWED_CHARACTERS.set('\u06D0', '\u06D3' + 1); 104 XML_NAME_ALLOWED_CHARACTERS.set('\u06D5'); 105 XML_NAME_ALLOWED_CHARACTERS.set('\u06E5', '\u06E6' + 1); 106 XML_NAME_ALLOWED_CHARACTERS.set('\u0905', '\u0939' + 1); 107 XML_NAME_ALLOWED_CHARACTERS.set('\u093D'); 108 XML_NAME_ALLOWED_CHARACTERS.set('\u0958', '\u0961' + 1); 109 XML_NAME_ALLOWED_CHARACTERS.set('\u0985', '\u098C' + 1); 110 XML_NAME_ALLOWED_CHARACTERS.set('\u098F', '\u0990' + 1); 111 XML_NAME_ALLOWED_CHARACTERS.set('\u0993', '\u09A8' + 1); 112 XML_NAME_ALLOWED_CHARACTERS.set('\u09AA', '\u09B0' + 1); 113 XML_NAME_ALLOWED_CHARACTERS.set('\u09B2'); 114 XML_NAME_ALLOWED_CHARACTERS.set('\u09B6', '\u09B9' + 1); 115 XML_NAME_ALLOWED_CHARACTERS.set('\u09DC', '\u09DD' + 1); 116 XML_NAME_ALLOWED_CHARACTERS.set('\u09DF', '\u09E1' + 1); 117 XML_NAME_ALLOWED_CHARACTERS.set('\u09F0', '\u09F1' + 1); 118 XML_NAME_ALLOWED_CHARACTERS.set('\u0A05', '\u0A0A' + 1); 119 XML_NAME_ALLOWED_CHARACTERS.set('\u0A0F', '\u0A10' + 1); 120 XML_NAME_ALLOWED_CHARACTERS.set('\u0A13', '\u0A28' + 1); 121 XML_NAME_ALLOWED_CHARACTERS.set('\u0A2A', '\u0A30' + 1); 122 XML_NAME_ALLOWED_CHARACTERS.set('\u0A32', '\u0A33' + 1); 123 XML_NAME_ALLOWED_CHARACTERS.set('\u0A35', '\u0A36' + 1); 124 XML_NAME_ALLOWED_CHARACTERS.set('\u0A38', '\u0A39' + 1); 125 XML_NAME_ALLOWED_CHARACTERS.set('\u0A59', '\u0A5C' + 1); 126 XML_NAME_ALLOWED_CHARACTERS.set('\u0A5E'); 127 XML_NAME_ALLOWED_CHARACTERS.set('\u0A72', '\u0A74' + 1); 128 XML_NAME_ALLOWED_CHARACTERS.set('\u0A85', '\u0A8B' + 1); 129 XML_NAME_ALLOWED_CHARACTERS.set('\u0A8D'); 130 XML_NAME_ALLOWED_CHARACTERS.set('\u0A8F', '\u0A91' + 1); 131 XML_NAME_ALLOWED_CHARACTERS.set('\u0A93', '\u0AA8' + 1); 132 XML_NAME_ALLOWED_CHARACTERS.set('\u0AAA', '\u0AB0' + 1); 133 XML_NAME_ALLOWED_CHARACTERS.set('\u0AB2', '\u0AB3' + 1); 134 XML_NAME_ALLOWED_CHARACTERS.set('\u0AB5', '\u0AB9' + 1); 135 XML_NAME_ALLOWED_CHARACTERS.set('\u0ABD'); 136 XML_NAME_ALLOWED_CHARACTERS.set('\u0AE0'); 137 XML_NAME_ALLOWED_CHARACTERS.set('\u0B05', '\u0B0C' + 1); 138 XML_NAME_ALLOWED_CHARACTERS.set('\u0B0F', '\u0B10' + 1); 139 XML_NAME_ALLOWED_CHARACTERS.set('\u0B13', '\u0B28' + 1); 140 XML_NAME_ALLOWED_CHARACTERS.set('\u0B2A', '\u0B30' + 1); 141 XML_NAME_ALLOWED_CHARACTERS.set('\u0B32', '\u0B33' + 1); 142 XML_NAME_ALLOWED_CHARACTERS.set('\u0B36', '\u0B39' + 1); 143 XML_NAME_ALLOWED_CHARACTERS.set('\u0B3D'); 144 XML_NAME_ALLOWED_CHARACTERS.set('\u0B5C', '\u0B5D' + 1); 145 XML_NAME_ALLOWED_CHARACTERS.set('\u0B5F', '\u0B61' + 1); 146 XML_NAME_ALLOWED_CHARACTERS.set('\u0B85', '\u0B8A' + 1); 147 XML_NAME_ALLOWED_CHARACTERS.set('\u0B8E', '\u0B90' + 1); 148 XML_NAME_ALLOWED_CHARACTERS.set('\u0B92', '\u0B95' + 1); 149 XML_NAME_ALLOWED_CHARACTERS.set('\u0B99', '\u0B9A' + 1); 150 XML_NAME_ALLOWED_CHARACTERS.set('\u0B9C'); 151 XML_NAME_ALLOWED_CHARACTERS.set('\u0B9E', '\u0B9F' + 1); 152 XML_NAME_ALLOWED_CHARACTERS.set('\u0BA3', '\u0BA4' + 1); 153 XML_NAME_ALLOWED_CHARACTERS.set('\u0BA8', '\u0BAA' + 1); 154 XML_NAME_ALLOWED_CHARACTERS.set('\u0BAE', '\u0BB5' + 1); 155 XML_NAME_ALLOWED_CHARACTERS.set('\u0BB7', '\u0BB9' + 1); 156 XML_NAME_ALLOWED_CHARACTERS.set('\u0C05', '\u0C0C' + 1); 157 XML_NAME_ALLOWED_CHARACTERS.set('\u0C0E', '\u0C10' + 1); 158 XML_NAME_ALLOWED_CHARACTERS.set('\u0C12', '\u0C28' + 1); 159 XML_NAME_ALLOWED_CHARACTERS.set('\u0C2A', '\u0C33' + 1); 160 XML_NAME_ALLOWED_CHARACTERS.set('\u0C35', '\u0C39' + 1); 161 XML_NAME_ALLOWED_CHARACTERS.set('\u0C60', '\u0C61' + 1); 162 XML_NAME_ALLOWED_CHARACTERS.set('\u0C85', '\u0C8C' + 1); 163 XML_NAME_ALLOWED_CHARACTERS.set('\u0C8E', '\u0C90' + 1); 164 XML_NAME_ALLOWED_CHARACTERS.set('\u0C92', '\u0CA8' + 1); 165 XML_NAME_ALLOWED_CHARACTERS.set('\u0CAA', '\u0CB3' + 1); 166 XML_NAME_ALLOWED_CHARACTERS.set('\u0CB5', '\u0CB9' + 1); 167 XML_NAME_ALLOWED_CHARACTERS.set('\u0CDE'); 168 XML_NAME_ALLOWED_CHARACTERS.set('\u0CE0', '\u0CE1' + 1); 169 XML_NAME_ALLOWED_CHARACTERS.set('\u0D05', '\u0D0C' + 1); 170 XML_NAME_ALLOWED_CHARACTERS.set('\u0D0E', '\u0D10' + 1); 171 XML_NAME_ALLOWED_CHARACTERS.set('\u0D12', '\u0D28' + 1); 172 XML_NAME_ALLOWED_CHARACTERS.set('\u0D2A', '\u0D39' + 1); 173 XML_NAME_ALLOWED_CHARACTERS.set('\u0D60', '\u0D61' + 1); 174 XML_NAME_ALLOWED_CHARACTERS.set('\u0E01', '\u0E2E' + 1); 175 XML_NAME_ALLOWED_CHARACTERS.set('\u0E30'); 176 XML_NAME_ALLOWED_CHARACTERS.set('\u0E32', '\u0E33' + 1); 177 XML_NAME_ALLOWED_CHARACTERS.set('\u0E40', '\u0E45' + 1); 178 XML_NAME_ALLOWED_CHARACTERS.set('\u0E81', '\u0E82' + 1); 179 XML_NAME_ALLOWED_CHARACTERS.set('\u0E84'); 180 XML_NAME_ALLOWED_CHARACTERS.set('\u0E87', '\u0E88' + 1); 181 XML_NAME_ALLOWED_CHARACTERS.set('\u0E8A'); 182 XML_NAME_ALLOWED_CHARACTERS.set('\u0E8D'); 183 XML_NAME_ALLOWED_CHARACTERS.set('\u0E94', '\u0E97' + 1); 184 XML_NAME_ALLOWED_CHARACTERS.set('\u0E99', '\u0E9F' + 1); 185 XML_NAME_ALLOWED_CHARACTERS.set('\u0EA1', '\u0EA3' + 1); 186 XML_NAME_ALLOWED_CHARACTERS.set('\u0EA5'); 187 XML_NAME_ALLOWED_CHARACTERS.set('\u0EA7'); 188 XML_NAME_ALLOWED_CHARACTERS.set('\u0EAA', '\u0EAB' + 1); 189 XML_NAME_ALLOWED_CHARACTERS.set('\u0EAD', '\u0EAE' + 1); 190 XML_NAME_ALLOWED_CHARACTERS.set('\u0EB0'); 191 XML_NAME_ALLOWED_CHARACTERS.set('\u0EB2', '\u0EB3' + 1); 192 XML_NAME_ALLOWED_CHARACTERS.set('\u0EBD'); 193 XML_NAME_ALLOWED_CHARACTERS.set('\u0EC0', '\u0EC4' + 1); 194 XML_NAME_ALLOWED_CHARACTERS.set('\u0F40', '\u0F47' + 1); 195 XML_NAME_ALLOWED_CHARACTERS.set('\u0F49', '\u0F69' + 1); 196 XML_NAME_ALLOWED_CHARACTERS.set('\u10A0', '\u10C5' + 1); 197 XML_NAME_ALLOWED_CHARACTERS.set('\u10D0', '\u10F6' + 1); 198 XML_NAME_ALLOWED_CHARACTERS.set('\u1100'); 199 XML_NAME_ALLOWED_CHARACTERS.set('\u1102', '\u1103' + 1); 200 XML_NAME_ALLOWED_CHARACTERS.set('\u1105', '\u1107' + 1); 201 XML_NAME_ALLOWED_CHARACTERS.set('\u1109'); 202 XML_NAME_ALLOWED_CHARACTERS.set('\u110B', '\u110C' + 1); 203 XML_NAME_ALLOWED_CHARACTERS.set('\u110E', '\u1112' + 1); 204 XML_NAME_ALLOWED_CHARACTERS.set('\u113C'); 205 XML_NAME_ALLOWED_CHARACTERS.set('\u113E'); 206 XML_NAME_ALLOWED_CHARACTERS.set('\u1140'); 207 XML_NAME_ALLOWED_CHARACTERS.set('\u114C'); 208 XML_NAME_ALLOWED_CHARACTERS.set('\u114E'); 209 XML_NAME_ALLOWED_CHARACTERS.set('\u1150'); 210 XML_NAME_ALLOWED_CHARACTERS.set('\u1154', '\u1155' + 1); 211 XML_NAME_ALLOWED_CHARACTERS.set('\u1159'); 212 XML_NAME_ALLOWED_CHARACTERS.set('\u115F', '\u1161' + 1); 213 XML_NAME_ALLOWED_CHARACTERS.set('\u1163'); 214 XML_NAME_ALLOWED_CHARACTERS.set('\u1165'); 215 XML_NAME_ALLOWED_CHARACTERS.set('\u1167'); 216 XML_NAME_ALLOWED_CHARACTERS.set('\u1169'); 217 XML_NAME_ALLOWED_CHARACTERS.set('\u116D', '\u116E' + 1); 218 XML_NAME_ALLOWED_CHARACTERS.set('\u1172', '\u1173' + 1); 219 XML_NAME_ALLOWED_CHARACTERS.set('\u1175'); 220 XML_NAME_ALLOWED_CHARACTERS.set('\u119E'); 221 XML_NAME_ALLOWED_CHARACTERS.set('\u11A8'); 222 XML_NAME_ALLOWED_CHARACTERS.set('\u11AB'); 223 XML_NAME_ALLOWED_CHARACTERS.set('\u11AE', '\u11AF' + 1); 224 XML_NAME_ALLOWED_CHARACTERS.set('\u11B7', '\u11B8' + 1); 225 XML_NAME_ALLOWED_CHARACTERS.set('\u11BA'); 226 XML_NAME_ALLOWED_CHARACTERS.set('\u11BC', '\u11C2' + 1); 227 XML_NAME_ALLOWED_CHARACTERS.set('\u11EB'); 228 XML_NAME_ALLOWED_CHARACTERS.set('\u11F0'); 229 XML_NAME_ALLOWED_CHARACTERS.set('\u11F9'); 230 XML_NAME_ALLOWED_CHARACTERS.set('\u1E00', '\u1E9B' + 1); 231 XML_NAME_ALLOWED_CHARACTERS.set('\u1EA0', '\u1EF9' + 1); 232 XML_NAME_ALLOWED_CHARACTERS.set('\u1F00', '\u1F15' + 1); 233 XML_NAME_ALLOWED_CHARACTERS.set('\u1F18', '\u1F1D' + 1); 234 XML_NAME_ALLOWED_CHARACTERS.set('\u1F20', '\u1F45' + 1); 235 XML_NAME_ALLOWED_CHARACTERS.set('\u1F48', '\u1F4D' + 1); 236 XML_NAME_ALLOWED_CHARACTERS.set('\u1F50', '\u1F57' + 1); 237 XML_NAME_ALLOWED_CHARACTERS.set('\u1F59'); 238 XML_NAME_ALLOWED_CHARACTERS.set('\u1F5B'); 239 XML_NAME_ALLOWED_CHARACTERS.set('\u1F5D'); 240 XML_NAME_ALLOWED_CHARACTERS.set('\u1F5F', '\u1F7D' + 1); 241 XML_NAME_ALLOWED_CHARACTERS.set('\u1F80', '\u1FB4' + 1); 242 XML_NAME_ALLOWED_CHARACTERS.set('\u1FB6', '\u1FBC' + 1); 243 XML_NAME_ALLOWED_CHARACTERS.set('\u1FBE'); 244 XML_NAME_ALLOWED_CHARACTERS.set('\u1FC2', '\u1FC4' + 1); 245 XML_NAME_ALLOWED_CHARACTERS.set('\u1FC6', '\u1FCC' + 1); 246 XML_NAME_ALLOWED_CHARACTERS.set('\u1FD0', '\u1FD3' + 1); 247 XML_NAME_ALLOWED_CHARACTERS.set('\u1FD6', '\u1FDB' + 1); 248 XML_NAME_ALLOWED_CHARACTERS.set('\u1FE0', '\u1FEC' + 1); 249 XML_NAME_ALLOWED_CHARACTERS.set('\u1FF2', '\u1FF4' + 1); 250 XML_NAME_ALLOWED_CHARACTERS.set('\u1FF6', '\u1FFC' + 1); 251 XML_NAME_ALLOWED_CHARACTERS.set('\u2126'); 252 XML_NAME_ALLOWED_CHARACTERS.set('\u212A', '\u212B' + 1); 253 XML_NAME_ALLOWED_CHARACTERS.set('\u212E'); 254 XML_NAME_ALLOWED_CHARACTERS.set('\u2180', '\u2182' + 1); 255 XML_NAME_ALLOWED_CHARACTERS.set('\u3041', '\u3094' + 1); 256 XML_NAME_ALLOWED_CHARACTERS.set('\u30A1', '\u30FA' + 1); 257 XML_NAME_ALLOWED_CHARACTERS.set('\u3105', '\u312C' + 1); 258 XML_NAME_ALLOWED_CHARACTERS.set('\uAC00', '\uD7A3' + 1); 259 260 // XML Ideograph Character Set 261 262 XML_NAME_ALLOWED_CHARACTERS.set('\u4E00', '\u9FA5' + 1); 263 XML_NAME_ALLOWED_CHARACTERS.set('\u3007'); 264 XML_NAME_ALLOWED_CHARACTERS.set('\u3021', '\u3029' + 1); 265 266 // XML Combining Character Set 267 268 XML_NAME_ALLOWED_CHARACTERS.set('\u0300', '\u0345' + 1); 269 XML_NAME_ALLOWED_CHARACTERS.set('\u0360', '\u0361' + 1); 270 XML_NAME_ALLOWED_CHARACTERS.set('\u0483', '\u0486' + 1); 271 XML_NAME_ALLOWED_CHARACTERS.set('\u0591', '\u05A1' + 1); 272 XML_NAME_ALLOWED_CHARACTERS.set('\u05A3', '\u05B9' + 1); 273 XML_NAME_ALLOWED_CHARACTERS.set('\u05BB', '\u05BD' + 1); 274 XML_NAME_ALLOWED_CHARACTERS.set('\u05BF'); 275 XML_NAME_ALLOWED_CHARACTERS.set('\u05C1', '\u05C2' + 1); 276 XML_NAME_ALLOWED_CHARACTERS.set('\u05C4'); 277 XML_NAME_ALLOWED_CHARACTERS.set('\u064B', '\u0652' + 1); 278 XML_NAME_ALLOWED_CHARACTERS.set('\u0670'); 279 XML_NAME_ALLOWED_CHARACTERS.set('\u06D6', '\u06DC' + 1); 280 XML_NAME_ALLOWED_CHARACTERS.set('\u06DD', '\u06DF' + 1); 281 XML_NAME_ALLOWED_CHARACTERS.set('\u06E0', '\u06E4' + 1); 282 XML_NAME_ALLOWED_CHARACTERS.set('\u06E7', '\u06E8' + 1); 283 XML_NAME_ALLOWED_CHARACTERS.set('\u06EA', '\u06ED' + 1); 284 XML_NAME_ALLOWED_CHARACTERS.set('\u0901', '\u0903' + 1); 285 XML_NAME_ALLOWED_CHARACTERS.set('\u093C'); 286 XML_NAME_ALLOWED_CHARACTERS.set('\u093E', '\u094C' + 1); 287 XML_NAME_ALLOWED_CHARACTERS.set('\u094D'); 288 XML_NAME_ALLOWED_CHARACTERS.set('\u0951', '\u0954' + 1); 289 XML_NAME_ALLOWED_CHARACTERS.set('\u0962', '\u0963' + 1); 290 XML_NAME_ALLOWED_CHARACTERS.set('\u0981', '\u0983' + 1); 291 XML_NAME_ALLOWED_CHARACTERS.set('\u09BC'); 292 XML_NAME_ALLOWED_CHARACTERS.set('\u09BE'); 293 XML_NAME_ALLOWED_CHARACTERS.set('\u09BF'); 294 XML_NAME_ALLOWED_CHARACTERS.set('\u09C0', '\u09C4' + 1); 295 XML_NAME_ALLOWED_CHARACTERS.set('\u09C7', '\u09C8' + 1); 296 XML_NAME_ALLOWED_CHARACTERS.set('\u09CB', '\u09CD' + 1); 297 XML_NAME_ALLOWED_CHARACTERS.set('\u09D7'); 298 XML_NAME_ALLOWED_CHARACTERS.set('\u09E2', '\u09E3' + 1); 299 XML_NAME_ALLOWED_CHARACTERS.set('\u0A02'); 300 XML_NAME_ALLOWED_CHARACTERS.set('\u0A3C'); 301 XML_NAME_ALLOWED_CHARACTERS.set('\u0A3E'); 302 XML_NAME_ALLOWED_CHARACTERS.set('\u0A3F'); 303 XML_NAME_ALLOWED_CHARACTERS.set('\u0A40', '\u0A42' + 1); 304 XML_NAME_ALLOWED_CHARACTERS.set('\u0A47', '\u0A48' + 1); 305 XML_NAME_ALLOWED_CHARACTERS.set('\u0A4B', '\u0A4D' + 1); 306 XML_NAME_ALLOWED_CHARACTERS.set('\u0A70', '\u0A71' + 1); 307 XML_NAME_ALLOWED_CHARACTERS.set('\u0A81', '\u0A83' + 1); 308 XML_NAME_ALLOWED_CHARACTERS.set('\u0ABC'); 309 XML_NAME_ALLOWED_CHARACTERS.set('\u0ABE', '\u0AC5' + 1); 310 XML_NAME_ALLOWED_CHARACTERS.set('\u0AC7', '\u0AC9' + 1); 311 XML_NAME_ALLOWED_CHARACTERS.set('\u0ACB', '\u0ACD' + 1); 312 XML_NAME_ALLOWED_CHARACTERS.set('\u0B01', '\u0B03' + 1); 313 XML_NAME_ALLOWED_CHARACTERS.set('\u0B3C'); 314 XML_NAME_ALLOWED_CHARACTERS.set('\u0B3E', '\u0B43' + 1); 315 XML_NAME_ALLOWED_CHARACTERS.set('\u0B47', '\u0B48' + 1); 316 XML_NAME_ALLOWED_CHARACTERS.set('\u0B4B', '\u0B4D' + 1); 317 XML_NAME_ALLOWED_CHARACTERS.set('\u0B56', '\u0B57' + 1); 318 XML_NAME_ALLOWED_CHARACTERS.set('\u0B82', '\u0B83' + 1); 319 XML_NAME_ALLOWED_CHARACTERS.set('\u0BBE', '\u0BC2' + 1); 320 XML_NAME_ALLOWED_CHARACTERS.set('\u0BC6', '\u0BC8' + 1); 321 XML_NAME_ALLOWED_CHARACTERS.set('\u0BCA', '\u0BCD' + 1); 322 XML_NAME_ALLOWED_CHARACTERS.set('\u0BD7'); 323 XML_NAME_ALLOWED_CHARACTERS.set('\u0C01', '\u0C03' + 1); 324 XML_NAME_ALLOWED_CHARACTERS.set('\u0C3E', '\u0C44' + 1); 325 XML_NAME_ALLOWED_CHARACTERS.set('\u0C46', '\u0C48' + 1); 326 XML_NAME_ALLOWED_CHARACTERS.set('\u0C4A', '\u0C4D' + 1); 327 XML_NAME_ALLOWED_CHARACTERS.set('\u0C55', '\u0C56' + 1); 328 XML_NAME_ALLOWED_CHARACTERS.set('\u0C82', '\u0C83' + 1); 329 XML_NAME_ALLOWED_CHARACTERS.set('\u0CBE', '\u0CC4' + 1); 330 XML_NAME_ALLOWED_CHARACTERS.set('\u0CC6', '\u0CC8' + 1); 331 XML_NAME_ALLOWED_CHARACTERS.set('\u0CCA', '\u0CCD' + 1); 332 XML_NAME_ALLOWED_CHARACTERS.set('\u0CD5', '\u0CD6' + 1); 333 XML_NAME_ALLOWED_CHARACTERS.set('\u0D02', '\u0D03' + 1); 334 XML_NAME_ALLOWED_CHARACTERS.set('\u0D3E', '\u0D43' + 1); 335 XML_NAME_ALLOWED_CHARACTERS.set('\u0D46', '\u0D48' + 1); 336 XML_NAME_ALLOWED_CHARACTERS.set('\u0D4A', '\u0D4D' + 1); 337 XML_NAME_ALLOWED_CHARACTERS.set('\u0D57'); 338 XML_NAME_ALLOWED_CHARACTERS.set('\u0E31'); 339 XML_NAME_ALLOWED_CHARACTERS.set('\u0E34', '\u0E3A' + 1); 340 XML_NAME_ALLOWED_CHARACTERS.set('\u0E47', '\u0E4E' + 1); 341 XML_NAME_ALLOWED_CHARACTERS.set('\u0EB1'); 342 XML_NAME_ALLOWED_CHARACTERS.set('\u0EB4', '\u0EB9' + 1); 343 XML_NAME_ALLOWED_CHARACTERS.set('\u0EBB', '\u0EBC' + 1); 344 XML_NAME_ALLOWED_CHARACTERS.set('\u0EC8', '\u0ECD' + 1); 345 XML_NAME_ALLOWED_CHARACTERS.set('\u0F18', '\u0F19' + 1); 346 XML_NAME_ALLOWED_CHARACTERS.set('\u0F35'); 347 XML_NAME_ALLOWED_CHARACTERS.set('\u0F37'); 348 XML_NAME_ALLOWED_CHARACTERS.set('\u0F39'); 349 XML_NAME_ALLOWED_CHARACTERS.set('\u0F3E'); 350 XML_NAME_ALLOWED_CHARACTERS.set('\u0F3F'); 351 XML_NAME_ALLOWED_CHARACTERS.set('\u0F71', '\u0F84' + 1); 352 XML_NAME_ALLOWED_CHARACTERS.set('\u0F86', '\u0F8B' + 1); 353 XML_NAME_ALLOWED_CHARACTERS.set('\u0F90', '\u0F95' + 1); 354 XML_NAME_ALLOWED_CHARACTERS.set('\u0F97'); 355 XML_NAME_ALLOWED_CHARACTERS.set('\u0F99', '\u0FAD' + 1); 356 XML_NAME_ALLOWED_CHARACTERS.set('\u0FB1', '\u0FB7' + 1); 357 XML_NAME_ALLOWED_CHARACTERS.set('\u0FB9'); 358 XML_NAME_ALLOWED_CHARACTERS.set('\u20D0', '\u20DC' + 1); 359 XML_NAME_ALLOWED_CHARACTERS.set('\u20E1'); 360 XML_NAME_ALLOWED_CHARACTERS.set('\u302A', '\u302F' + 1); 361 XML_NAME_ALLOWED_CHARACTERS.set('\u3099'); 362 XML_NAME_ALLOWED_CHARACTERS.set('\u309A'); 363 364 // XML Digits 365 XML_NAME_ALLOWED_CHARACTERS.set('\u0030', '\u0039' + 1); 366 XML_NAME_ALLOWED_CHARACTERS.set('\u0660', '\u0669' + 1); 367 XML_NAME_ALLOWED_CHARACTERS.set('\u06F0', '\u06F9' + 1); 368 XML_NAME_ALLOWED_CHARACTERS.set('\u0966', '\u096F' + 1); 369 XML_NAME_ALLOWED_CHARACTERS.set('\u09E6', '\u09EF' + 1); 370 XML_NAME_ALLOWED_CHARACTERS.set('\u0A66', '\u0A6F' + 1); 371 XML_NAME_ALLOWED_CHARACTERS.set('\u0AE6', '\u0AEF' + 1); 372 XML_NAME_ALLOWED_CHARACTERS.set('\u0B66', '\u0B6F' + 1); 373 XML_NAME_ALLOWED_CHARACTERS.set('\u0BE7', '\u0BEF' + 1); 374 XML_NAME_ALLOWED_CHARACTERS.set('\u0C66', '\u0C6F' + 1); 375 XML_NAME_ALLOWED_CHARACTERS.set('\u0CE6', '\u0CEF' + 1); 376 XML_NAME_ALLOWED_CHARACTERS.set('\u0D66', '\u0D6F' + 1); 377 XML_NAME_ALLOWED_CHARACTERS.set('\u0E50', '\u0E59' + 1); 378 XML_NAME_ALLOWED_CHARACTERS.set('\u0ED0', '\u0ED9' + 1); 379 XML_NAME_ALLOWED_CHARACTERS.set('\u0F20', '\u0F29' + 1); 380 381 // XML Extenders 382 XML_NAME_ALLOWED_CHARACTERS.set('\u00B7'); 383 XML_NAME_ALLOWED_CHARACTERS.set('\u02D0'); 384 XML_NAME_ALLOWED_CHARACTERS.set('\u02D1'); 385 XML_NAME_ALLOWED_CHARACTERS.set('\u0387'); 386 XML_NAME_ALLOWED_CHARACTERS.set('\u0640'); 387 XML_NAME_ALLOWED_CHARACTERS.set('\u0E46'); 388 XML_NAME_ALLOWED_CHARACTERS.set('\u0EC6'); 389 XML_NAME_ALLOWED_CHARACTERS.set('\u3005'); 390 XML_NAME_ALLOWED_CHARACTERS.set('\u3031', '\u3035' + 1); 391 XML_NAME_ALLOWED_CHARACTERS.set('\u309D', '\u309E' + 1); 392 XML_NAME_ALLOWED_CHARACTERS.set('\u30FC', '\u30FE' + 1); 393 394 XML_NAME_START_ALLOWED_CHARACTERS.or(XML_NAME_ALLOWED_CHARACTERS); 395 // remove . and - 396 XML_NAME_START_ALLOWED_CHARACTERS.clear('-'); 397 XML_NAME_START_ALLOWED_CHARACTERS.clear('.'); 398 399 // remove all digits 400 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0030', '\u0039' + 1); 401 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0660', '\u0669' + 1); 402 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u06F0', '\u06F9' + 1); 403 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0966', '\u096F' + 1); 404 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u09E6', '\u09EF' + 1); 405 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0A66', '\u0A6F' + 1); 406 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0AE6', '\u0AEF' + 1); 407 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0B66', '\u0B6F' + 1); 408 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0BE7', '\u0BEF' + 1); 409 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0C66', '\u0C6F' + 1); 410 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0CE6', '\u0CEF' + 1); 411 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0D66', '\u0D6F' + 1); 412 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0E50', '\u0E59' + 1); 413 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0ED0', '\u0ED9' + 1); 414 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0F20', '\u0F29' + 1); 415 416 // remove extender characters 417 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u00B7'); 418 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u02D0'); 419 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u02D1'); 420 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0387'); 421 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0640'); 422 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0E46'); 423 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u0EC6'); 424 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u3005'); 425 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u3031', '\u3035' + 1); 426 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u309D', '\u309E' + 1); 427 XML_NAME_START_ALLOWED_CHARACTERS.clear('\u30FC', '\u30FE' + 1); 428 429 } 430 431 /** 432 * {@inheritDoc} 433 * 434 * @see org.modeshape.common.text.TextDecoder#decode(java.lang.String) 435 */ 436 @Override 437 public String decode( String encodedText ) { 438 if (encodedText == null) return null; 439 if (encodedText.length() < 7) { 440 // Not big enough to have an encoded sequence 441 return encodedText; 442 } 443 StringBuilder sb = new StringBuilder(); 444 char[] digits = new char[4]; 445 CharacterIterator iter = new StringCharacterIterator(encodedText); 446 for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) { 447 if (c == '_') { 448 // Read the next character, if there is one ... 449 char next = iter.next(); 450 if (next == CharacterIterator.DONE) { 451 sb.append(c); 452 break; 453 } 454 // If the next character is not 'x', then these are just regular characters ... 455 if (next != 'x') { 456 sb.append(c).append(next); 457 continue; 458 } 459 // Read the next 4 characters (digits) and another '_' character ... 460 digits[0] = iter.next(); 461 if (digits[0] == CharacterIterator.DONE) { 462 sb.append(c).append(next); 463 break; 464 } 465 digits[1] = iter.next(); 466 if (digits[1] == CharacterIterator.DONE) { 467 sb.append(c).append(next).append(digits, 0, 1); 468 break; 469 } 470 digits[2] = iter.next(); 471 if (digits[2] == CharacterIterator.DONE) { 472 sb.append(c).append(next).append(digits, 0, 2); 473 break; 474 } 475 digits[3] = iter.next(); 476 if (digits[3] == CharacterIterator.DONE) { 477 sb.append(c).append(next).append(digits, 0, 3); 478 break; 479 } 480 char underscore = iter.next(); 481 if (underscore != '_') { // includes DONE 482 sb.append(c).append(next).append(digits, 0, 4); 483 if (underscore == CharacterIterator.DONE) break; 484 sb.append(underscore); 485 continue; 486 } 487 // We've read all 4 digits, including the trailing '_' 488 // Now parse into the resulting character 489 try { 490 sb.appendCodePoint(Integer.parseInt(new String(digits), 16)); 491 } catch (NumberFormatException e) { 492 // code was not hexadecimal, so just write out the characters as is ... 493 sb.append(c).append(next).append(digits).append(underscore); 494 } 495 } else { 496 // Just append other characters ... 497 sb.append(c); 498 } 499 } 500 return sb.toString(); 501 } 502 503 @Override 504 public String encode( String text ) { 505 if (text == null) return null; 506 if (text.length() == 0) return text; 507 StringBuilder sb = new StringBuilder(); 508 String hex = null; 509 CharacterIterator iter = new StringCharacterIterator(text); 510 for (char c = iter.first(); c != CharacterIterator.DONE; c = iter.next()) { 511 if (c == '_') { 512 // Read the next character (if there is one) ... 513 char next = iter.next(); 514 if (next == CharacterIterator.DONE) { 515 sb.append(c); 516 break; 517 } 518 // If the next character is not 'x', then these are just regular characters ... 519 if (next != 'x') { 520 sb.append(c).append(next); 521 continue; 522 } 523 // The next character is 'x', so write out the '_' character in encoded form ... 524 sb.append("_x005f_"); 525 // And then write out the next character ... 526 sb.append(next); 527 } else if (iter.getIndex() == 0 && XML_NAME_START_ALLOWED_CHARACTERS.get(c)) { 528 // The fist only allows a subset from the total list of characters 529 sb.append(c); 530 } else if (iter.getIndex() > 0 && XML_NAME_ALLOWED_CHARACTERS.get(c)) { 531 // Legal characters for an XML Name ... 532 sb.append(c); 533 } else { 534 // All other characters must be escaped with '_xHHHH_' where 'HHHH' is the hex string for the code point 535 hex = Integer.toHexString(c); 536 // The hex string excludes the leading '0's, so check the character values so we know how many to prepend 537 if (c >= '\u0000' && c <= '\u000f') { 538 sb.append("_x000").append(hex); 539 } else if (c >= '\u0010' && c <= '\u00ff') { 540 sb.append("_x00").append(hex); 541 } else if (c >= '\u0100' && c <= '\u0fff') { 542 sb.append("_x0").append(hex); 543 } else { 544 sb.append("_x").append(hex); 545 } 546 sb.append('_'); 547 } 548 } 549 return sb.toString(); 550 } 551 552}