code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/server/webdav/MIME2Java.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one or more
   3  * contributor license agreements.  See the NOTICE file distributed with
   4  * this work for additional information regarding copyright ownership.
   5  * The ASF licenses this file to You under the Apache License, Version 2.0
   6  * (the "License"); you may not use this file except in compliance with
   7  * the License.  You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 package gr.ebs.gss.server.webdav;
  19
  20 import java.util.Hashtable;
  21
  22 /**
  23  * MIME2Java is a convenience class which handles conversions between MIME charset names
  24  * and Java encoding names.
  25  * <p>The supported XML encodings are the intersection of XML-supported code sets and those
  26  * supported in JDK 1.1.
  27  * <p>MIME charset names are used on <var>xmlEncoding</var> parameters to methods such
  28  * as <code>TXDocument#setEncoding</code> and <code>DTD#setEncoding</code>.
  29  * <p>Java encoding names are used on <var>encoding</var> parameters to
  30  * methods such as <code>TXDocument#printWithFormat</code> and <code>DTD#printExternal</code>.
  31  * <P>
  32  * <TABLE BORDER="0" WIDTH="100%">
  33  *  <TR>
  34  *      <TD WIDTH="33%">
  35  *          <P ALIGN="CENTER"><B>Common Name</B>
  36  *      </TD>
  37  *      <TD WIDTH="15%">
  38  *          <P ALIGN="CENTER"><B>Use this name in XML files</B>
  39  *      </TD>
  40  *      <TD WIDTH="12%">
  41  *          <P ALIGN="CENTER"><B>Name Type</B>
  42  *      </TD>
  43  *      <TD WIDTH="31%">
  44  *          <P ALIGN="CENTER"><B>Xerces converts to this Java Encoder Name</B>
  45  *      </TD>
  46  *  </TR>
  47  *  <TR>
  48  *      <TD WIDTH="33%">8 bit Unicode</TD>
  49  *      <TD WIDTH="15%">
  50  *          <P ALIGN="CENTER">UTF-8
  51  *      </TD>
  52  *      <TD WIDTH="12%">
  53  *          <P ALIGN="CENTER">IANA
  54  *      </TD>
  55  *      <TD WIDTH="31%">
  56  *          <P ALIGN="CENTER">UTF8
  57  *      </TD>
  58  *  </TR>
  59  *  <TR>
  60  *      <TD WIDTH="33%">ISO Latin 1</TD>
  61  *      <TD WIDTH="15%">
  62  *          <P ALIGN="CENTER">ISO-8859-1
  63  *      </TD>
  64  *      <TD WIDTH="12%">
  65  *          <P ALIGN="CENTER">MIME
  66  *      </TD>
  67  *      <TD WIDTH="31%">
  68  *          <P ALIGN="CENTER">ISO-8859-1
  69  *      </TD>
  70  *  </TR>
  71  *  <TR>
  72  *      <TD WIDTH="33%">ISO Latin 2</TD>
  73  *      <TD WIDTH="15%">
  74  *          <P ALIGN="CENTER">ISO-8859-2
  75  *      </TD>
  76  *      <TD WIDTH="12%">
  77  *          <P ALIGN="CENTER">MIME
  78  *      </TD>
  79  *      <TD WIDTH="31%">
  80  *          <P ALIGN="CENTER">ISO-8859-2
  81  *      </TD>
  82  *  </TR>
  83  *  <TR>
  84  *      <TD WIDTH="33%">ISO Latin 3</TD>
  85  *      <TD WIDTH="15%">
  86  *          <P ALIGN="CENTER">ISO-8859-3
  87  *      </TD>
  88  *      <TD WIDTH="12%">
  89  *          <P ALIGN="CENTER">MIME
  90  *      </TD>
  91  *      <TD WIDTH="31%">
  92  *          <P ALIGN="CENTER">ISO-8859-3
  93  *      </TD>
  94  *  </TR>
  95  *  <TR>
  96  *      <TD WIDTH="33%">ISO Latin 4</TD>
  97  *      <TD WIDTH="15%">
  98  *          <P ALIGN="CENTER">ISO-8859-4
  99  *      </TD>
 100  *      <TD WIDTH="12%">
 101  *          <P ALIGN="CENTER">MIME
 102  *      </TD>
 103  *      <TD WIDTH="31%">
 104  *          <P ALIGN="CENTER">ISO-8859-4
 105  *      </TD>
 106  *  </TR>
 107  *  <TR>
 108  *      <TD WIDTH="33%">ISO Latin Cyrillic</TD>
 109  *      <TD WIDTH="15%">
 110  *          <P ALIGN="CENTER">ISO-8859-5
 111  *      </TD>
 112  *      <TD WIDTH="12%">
 113  *          <P ALIGN="CENTER">MIME
 114  *      </TD>
 115  *      <TD WIDTH="31%">
 116  *          <P ALIGN="CENTER">ISO-8859-5
 117  *      </TD>
 118  *  </TR>
 119  *  <TR>
 120  *      <TD WIDTH="33%">ISO Latin Arabic</TD>
 121  *      <TD WIDTH="15%">
 122  *          <P ALIGN="CENTER">ISO-8859-6
 123  *      </TD>
 124  *      <TD WIDTH="12%">
 125  *          <P ALIGN="CENTER">MIME
 126  *      </TD>
 127  *      <TD WIDTH="31%">
 128  *          <P ALIGN="CENTER">ISO-8859-6
 129  *      </TD>
 130  *  </TR>
 131  *  <TR>
 132  *      <TD WIDTH="33%">ISO Latin Greek</TD>
 133  *      <TD WIDTH="15%">
 134  *          <P ALIGN="CENTER">ISO-8859-7
 135  *      </TD>
 136  *      <TD WIDTH="12%">
 137  *          <P ALIGN="CENTER">MIME
 138  *      </TD>
 139  *      <TD WIDTH="31%">
 140  *          <P ALIGN="CENTER">ISO-8859-7
 141  *      </TD>
 142  *  </TR>
 143  *  <TR>
 144  *      <TD WIDTH="33%">ISO Latin Hebrew</TD>
 145  *      <TD WIDTH="15%">
 146  *          <P ALIGN="CENTER">ISO-8859-8
 147  *      </TD>
 148  *      <TD WIDTH="12%">
 149  *          <P ALIGN="CENTER">MIME
 150  *      </TD>
 151  *      <TD WIDTH="31%">
 152  *          <P ALIGN="CENTER">ISO-8859-8
 153  *      </TD>
 154  *  </TR>
 155  *  <TR>
 156  *      <TD WIDTH="33%">ISO Latin 5</TD>
 157  *      <TD WIDTH="15%">
 158  *          <P ALIGN="CENTER">ISO-8859-9
 159  *      </TD>
 160  *      <TD WIDTH="12%">
 161  *          <P ALIGN="CENTER">MIME
 162  *      </TD>
 163  *      <TD WIDTH="31%">
 164  *          <P ALIGN="CENTER">ISO-8859-9
 165  *      </TD>
 166  *  </TR>
 167  *  <TR>
 168  *      <TD WIDTH="33%">EBCDIC: US</TD>
 169  *      <TD WIDTH="15%">
 170  *          <P ALIGN="CENTER">ebcdic-cp-us
 171  *      </TD>
 172  *      <TD WIDTH="12%">
 173  *          <P ALIGN="CENTER">IANA
 174  *      </TD>
 175  *      <TD WIDTH="31%">
 176  *          <P ALIGN="CENTER">cp037
 177  *      </TD>
 178  *  </TR>
 179  *  <TR>
 180  *      <TD WIDTH="33%">EBCDIC: Canada</TD>
 181  *      <TD WIDTH="15%">
 182  *          <P ALIGN="CENTER">ebcdic-cp-ca
 183  *      </TD>
 184  *      <TD WIDTH="12%">
 185  *          <P ALIGN="CENTER">IANA
 186  *      </TD>
 187  *      <TD WIDTH="31%">
 188  *          <P ALIGN="CENTER">cp037
 189  *      </TD>
 190  *  </TR>
 191  *  <TR>
 192  *      <TD WIDTH="33%">EBCDIC: Netherlands</TD>
 193  *      <TD WIDTH="15%">
 194  *          <P ALIGN="CENTER">ebcdic-cp-nl
 195  *      </TD>
 196  *      <TD WIDTH="12%">
 197  *          <P ALIGN="CENTER">IANA
 198  *      </TD>
 199  *      <TD WIDTH="31%">
 200  *          <P ALIGN="CENTER">cp037
 201  *      </TD>
 202  *  </TR>
 203  *  <TR>
 204  *      <TD WIDTH="33%">EBCDIC: Denmark</TD>
 205  *      <TD WIDTH="15%">
 206  *          <P ALIGN="CENTER">ebcdic-cp-dk
 207  *      </TD>
 208  *      <TD WIDTH="12%">
 209  *          <P ALIGN="CENTER">IANA
 210  *      </TD>
 211  *      <TD WIDTH="31%">
 212  *          <P ALIGN="CENTER">cp277
 213  *      </TD>
 214  *  </TR>
 215  *  <TR>
 216  *      <TD WIDTH="33%">EBCDIC: Norway</TD>
 217  *      <TD WIDTH="15%">
 218  *          <P ALIGN="CENTER">ebcdic-cp-no
 219  *      </TD>
 220  *      <TD WIDTH="12%">
 221  *          <P ALIGN="CENTER">IANA
 222  *      </TD>
 223  *      <TD WIDTH="31%">
 224  *          <P ALIGN="CENTER">cp277
 225  *      </TD>
 226  *  </TR>
 227  *  <TR>
 228  *      <TD WIDTH="33%">EBCDIC: Finland</TD>
 229  *      <TD WIDTH="15%">
 230  *          <P ALIGN="CENTER">ebcdic-cp-fi
 231  *      </TD>
 232  *      <TD WIDTH="12%">
 233  *          <P ALIGN="CENTER">IANA
 234  *      </TD>
 235  *      <TD WIDTH="31%">
 236  *          <P ALIGN="CENTER">cp278
 237  *      </TD>
 238  *  </TR>
 239  *  <TR>
 240  *      <TD WIDTH="33%">EBCDIC: Sweden</TD>
 241  *      <TD WIDTH="15%">
 242  *          <P ALIGN="CENTER">ebcdic-cp-se
 243  *      </TD>
 244  *      <TD WIDTH="12%">
 245  *          <P ALIGN="CENTER">IANA
 246  *      </TD>
 247  *      <TD WIDTH="31%">
 248  *          <P ALIGN="CENTER">cp278
 249  *      </TD>
 250  *  </TR>
 251  *  <TR>
 252  *      <TD WIDTH="33%">EBCDIC: Italy</TD>
 253  *      <TD WIDTH="15%">
 254  *          <P ALIGN="CENTER">ebcdic-cp-it
 255  *      </TD>
 256  *      <TD WIDTH="12%">
 257  *          <P ALIGN="CENTER">IANA
 258  *      </TD>
 259  *      <TD WIDTH="31%">
 260  *          <P ALIGN="CENTER">cp280
 261  *      </TD>
 262  *  </TR>
 263  *  <TR>
 264  *      <TD WIDTH="33%">EBCDIC: Spain, Latin America</TD>
 265  *      <TD WIDTH="15%">
 266  *          <P ALIGN="CENTER">ebcdic-cp-es
 267  *      </TD>
 268  *      <TD WIDTH="12%">
 269  *          <P ALIGN="CENTER">IANA
 270  *      </TD>
 271  *      <TD WIDTH="31%">
 272  *          <P ALIGN="CENTER">cp284
 273  *      </TD>
 274  *  </TR>
 275  *  <TR>
 276  *      <TD WIDTH="33%">EBCDIC: Great Britain</TD>
 277  *      <TD WIDTH="15%">
 278  *          <P ALIGN="CENTER">ebcdic-cp-gb
 279  *      </TD>
 280  *      <TD WIDTH="12%">
 281  *          <P ALIGN="CENTER">IANA
 282  *      </TD>
 283  *      <TD WIDTH="31%">
 284  *          <P ALIGN="CENTER">cp285
 285  *      </TD>
 286  *  </TR>
 287  *  <TR>
 288  *      <TD WIDTH="33%">EBCDIC: France</TD>
 289  *      <TD WIDTH="15%">
 290  *          <P ALIGN="CENTER">ebcdic-cp-fr
 291  *      </TD>
 292  *      <TD WIDTH="12%">
 293  *          <P ALIGN="CENTER">IANA
 294  *      </TD>
 295  *      <TD WIDTH="31%">
 296  *          <P ALIGN="CENTER">cp297
 297  *      </TD>
 298  *  </TR>
 299  *  <TR>
 300  *      <TD WIDTH="33%">EBCDIC: Arabic</TD>
 301  *      <TD WIDTH="15%">
 302  *          <P ALIGN="CENTER">ebcdic-cp-ar1
 303  *      </TD>
 304  *      <TD WIDTH="12%">
 305  *          <P ALIGN="CENTER">IANA
 306  *      </TD>
 307  *      <TD WIDTH="31%">
 308  *          <P ALIGN="CENTER">cp420
 309  *      </TD>
 310  *  </TR>
 311  *  <TR>
 312  *      <TD WIDTH="33%">EBCDIC: Hebrew</TD>
 313  *      <TD WIDTH="15%">
 314  *          <P ALIGN="CENTER">ebcdic-cp-he
 315  *      </TD>
 316  *      <TD WIDTH="12%">
 317  *          <P ALIGN="CENTER">IANA
 318  *      </TD>
 319  *      <TD WIDTH="31%">
 320  *          <P ALIGN="CENTER">cp424
 321  *      </TD>
 322  *  </TR>
 323  *  <TR>
 324  *      <TD WIDTH="33%">EBCDIC: Switzerland</TD>
 325  *      <TD WIDTH="15%">
 326  *          <P ALIGN="CENTER">ebcdic-cp-ch
 327  *      </TD>
 328  *      <TD WIDTH="12%">
 329  *          <P ALIGN="CENTER">IANA
 330  *      </TD>
 331  *      <TD WIDTH="31%">
 332  *          <P ALIGN="CENTER">cp500
 333  *      </TD>
 334  *  </TR>
 335  *  <TR>
 336  *      <TD WIDTH="33%">EBCDIC: Roece</TD>
 337  *      <TD WIDTH="15%">
 338  *          <P ALIGN="CENTER">ebcdic-cp-roece
 339  *      </TD>
 340  *      <TD WIDTH="12%">
 341  *          <P ALIGN="CENTER">IANA
 342  *      </TD>
 343  *      <TD WIDTH="31%">
 344  *          <P ALIGN="CENTER">cp870
 345  *      </TD>
 346  *  </TR>
 347  *  <TR>
 348  *      <TD WIDTH="33%">EBCDIC: Yogoslavia</TD>
 349  *      <TD WIDTH="15%">
 350  *          <P ALIGN="CENTER">ebcdic-cp-yu
 351  *      </TD>
 352  *      <TD WIDTH="12%">
 353  *          <P ALIGN="CENTER">IANA
 354  *      </TD>
 355  *      <TD WIDTH="31%">
 356  *          <P ALIGN="CENTER">cp870
 357  *      </TD>
 358  *  </TR>
 359  *  <TR>
 360  *      <TD WIDTH="33%">EBCDIC: Iceland</TD>
 361  *      <TD WIDTH="15%">
 362  *          <P ALIGN="CENTER">ebcdic-cp-is
 363  *      </TD>
 364  *      <TD WIDTH="12%">
 365  *          <P ALIGN="CENTER">IANA
 366  *      </TD>
 367  *      <TD WIDTH="31%">
 368  *          <P ALIGN="CENTER">cp871
 369  *      </TD>
 370  *  </TR>
 371  *  <TR>
 372  *      <TD WIDTH="33%">EBCDIC: Urdu</TD>
 373  *      <TD WIDTH="15%">
 374  *          <P ALIGN="CENTER">ebcdic-cp-ar2
 375  *      </TD>
 376  *      <TD WIDTH="12%">
 377  *          <P ALIGN="CENTER">IANA
 378  *      </TD>
 379  *      <TD WIDTH="31%">
 380  *          <P ALIGN="CENTER">cp918
 381  *      </TD>
 382  *  </TR>
 383  *  <TR>
 384  *      <TD WIDTH="33%">Chinese for PRC, mixed 1/2 byte</TD>
 385  *      <TD WIDTH="15%">
 386  *          <P ALIGN="CENTER">gb2312
 387  *      </TD>
 388  *      <TD WIDTH="12%">
 389  *          <P ALIGN="CENTER">MIME
 390  *      </TD>
 391  *      <TD WIDTH="31%">
 392  *          <P ALIGN="CENTER">GB2312
 393  *      </TD>
 394  *  </TR>
 395  *  <TR>
 396  *      <TD WIDTH="33%">Extended Unix Code, packed for Japanese</TD>
 397  *      <TD WIDTH="15%">
 398  *          <P ALIGN="CENTER">euc-jp
 399  *      </TD>
 400  *      <TD WIDTH="12%">
 401  *          <P ALIGN="CENTER">MIME
 402  *      </TD>
 403  *      <TD WIDTH="31%">
 404  *          <P ALIGN="CENTER">eucjis
 405  *      </TD>
 406  *  </TR>
 407  *  <TR>
 408  *      <TD WIDTH="33%">Japanese: iso-2022-jp</TD>
 409  *      <TD WIDTH="15%">
 410  *          <P ALIGN="CENTER">iso-2020-jp
 411  *      </TD>
 412  *      <TD WIDTH="12%">
 413  *          <P ALIGN="CENTER">MIME
 414  *      </TD>
 415  *      <TD WIDTH="31%">
 416  *          <P ALIGN="CENTER">JIS
 417  *      </TD>
 418  *  </TR>
 419  *  <TR>
 420  *      <TD WIDTH="33%">Japanese: Shift JIS</TD>
 421  *      <TD WIDTH="15%">
 422  *          <P ALIGN="CENTER">Shift_JIS
 423  *      </TD>
 424  *      <TD WIDTH="12%">
 425  *          <P ALIGN="CENTER">MIME
 426  *      </TD>
 427  *      <TD WIDTH="31%">
 428  *          <P ALIGN="CENTER">SJIS
 429  *      </TD>
 430  *  </TR>
 431  *  <TR>
 432  *      <TD WIDTH="33%">Chinese: Big5</TD>
 433  *      <TD WIDTH="15%">
 434  *          <P ALIGN="CENTER">Big5
 435  *      </TD>
 436  *      <TD WIDTH="12%">
 437  *          <P ALIGN="CENTER">MIME
 438  *      </TD>
 439  *      <TD WIDTH="31%">
 440  *          <P ALIGN="CENTER">Big5
 441  *      </TD>
 442  *  </TR>
 443  *  <TR>
 444  *      <TD WIDTH="33%">Extended Unix Code, packed for Korean</TD>
 445  *      <TD WIDTH="15%">
 446  *          <P ALIGN="CENTER">euc-kr
 447  *      </TD>
 448  *      <TD WIDTH="12%">
 449  *          <P ALIGN="CENTER">MIME
 450  *      </TD>
 451  *      <TD WIDTH="31%">
 452  *          <P ALIGN="CENTER">iso2022kr
 453  *      </TD>
 454  *  </TR>
 455  *  <TR>
 456  *      <TD WIDTH="33%">Cyrillic</TD>
 457  *      <TD WIDTH="15%">
 458  *          <P ALIGN="CENTER">koi8-r
 459  *      </TD>
 460  *      <TD WIDTH="12%">
 461  *          <P ALIGN="CENTER">MIME
 462  *      </TD>
 463  *      <TD WIDTH="31%">
 464  *          <P ALIGN="CENTER">koi8-r
 465  *      </TD>
 466  *  </TR>
 467  * </TABLE>
 468  *
 469  * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $
 470  * @author TAMURA Kent &lt;kent@trl.ibm.co.jp&gt;
 471  */
 472 public class MIME2Java {
 473
 474         /**
 475          *
 476          */
 477         static private Hashtable s_enchash;
 478         /**
 479          *
 480          */
 481         static private Hashtable s_revhash;
 482
 483         static {
 484                 s_enchash = new Hashtable();
 485                 //    <preferred MIME name>, <Java encoding name>
 486                 s_enchash.put("UTF-8", "UTF8");
 487                 s_enchash.put("US-ASCII",        "8859_1");    // ?
 488                 s_enchash.put("ISO-8859-1",      "8859_1");
 489                 s_enchash.put("ISO-8859-2",      "8859_2");
 490                 s_enchash.put("ISO-8859-3",      "8859_3");
 491                 s_enchash.put("ISO-8859-4",      "8859_4");
 492                 s_enchash.put("ISO-8859-5",      "8859_5");
 493                 s_enchash.put("ISO-8859-6",      "8859_6");
 494                 s_enchash.put("ISO-8859-7",      "8859_7");
 495                 s_enchash.put("ISO-8859-8",      "8859_8");
 496                 s_enchash.put("ISO-8859-9",      "8859_9");
 497                 s_enchash.put("ISO-2022-JP",     "JIS");
 498                 s_enchash.put("SHIFT_JIS",       "SJIS");
 499                 s_enchash.put("EUC-JP",          "EUCJIS");
 500                 s_enchash.put("GB2312",          "GB2312");
 501                 s_enchash.put("BIG5",            "Big5");
 502                 s_enchash.put("EUC-KR",          "KSC5601");
 503                 s_enchash.put("ISO-2022-KR",     "ISO2022KR");
 504                 s_enchash.put("KOI8-R",          "KOI8_R");
 505
 506                 s_enchash.put("EBCDIC-CP-US",    "CP037");
 507                 s_enchash.put("EBCDIC-CP-CA",    "CP037");
 508                 s_enchash.put("EBCDIC-CP-NL",    "CP037");
 509                 s_enchash.put("EBCDIC-CP-DK",    "CP277");
 510                 s_enchash.put("EBCDIC-CP-NO",    "CP277");
 511                 s_enchash.put("EBCDIC-CP-FI",    "CP278");
 512                 s_enchash.put("EBCDIC-CP-SE",    "CP278");
 513                 s_enchash.put("EBCDIC-CP-IT",    "CP280");
 514                 s_enchash.put("EBCDIC-CP-ES",    "CP284");
 515                 s_enchash.put("EBCDIC-CP-GB",    "CP285");
 516                 s_enchash.put("EBCDIC-CP-FR",    "CP297");
 517                 s_enchash.put("EBCDIC-CP-AR1",   "CP420");
 518                 s_enchash.put("EBCDIC-CP-HE",    "CP424");
 519                 s_enchash.put("EBCDIC-CP-CH",    "CP500");
 520                 s_enchash.put("EBCDIC-CP-ROECE", "CP870");
 521                 s_enchash.put("EBCDIC-CP-YU",    "CP870");
 522                 s_enchash.put("EBCDIC-CP-IS",    "CP871");
 523                 s_enchash.put("EBCDIC-CP-AR2",   "CP918");
 524
 525                 // j:CNS11643 -> EUC-TW?
 526                 // ISO-2022-CN? ISO-2022-CN-EXT?
 527
 528                 s_revhash = new Hashtable();
 529                 //    <Java encoding name>, <preferred MIME name>
 530                 s_revhash.put("UTF8", "UTF-8");
 531                 //s_revhash.put("8859_1", "US-ASCII");    // ?
 532                 s_revhash.put("8859_1", "ISO-8859-1");
 533                 s_revhash.put("8859_2", "ISO-8859-2");
 534                 s_revhash.put("8859_3", "ISO-8859-3");
 535                 s_revhash.put("8859_4", "ISO-8859-4");
 536                 s_revhash.put("8859_5", "ISO-8859-5");
 537                 s_revhash.put("8859_6", "ISO-8859-6");
 538                 s_revhash.put("8859_7", "ISO-8859-7");
 539                 s_revhash.put("8859_8", "ISO-8859-8");
 540                 s_revhash.put("8859_9", "ISO-8859-9");
 541                 s_revhash.put("JIS", "ISO-2022-JP");
 542                 s_revhash.put("SJIS", "Shift_JIS");
 543                 s_revhash.put("EUCJIS", "EUC-JP");
 544                 s_revhash.put("GB2312", "GB2312");
 545                 s_revhash.put("BIG5", "Big5");
 546                 s_revhash.put("KSC5601", "EUC-KR");
 547                 s_revhash.put("ISO2022KR", "ISO-2022-KR");
 548                 s_revhash.put("KOI8_R", "KOI8-R");
 549
 550                 s_revhash.put("CP037", "EBCDIC-CP-US");
 551                 s_revhash.put("CP037", "EBCDIC-CP-CA");
 552                 s_revhash.put("CP037", "EBCDIC-CP-NL");
 553                 s_revhash.put("CP277", "EBCDIC-CP-DK");
 554                 s_revhash.put("CP277", "EBCDIC-CP-NO");
 555                 s_revhash.put("CP278", "EBCDIC-CP-FI");
 556                 s_revhash.put("CP278", "EBCDIC-CP-SE");
 557                 s_revhash.put("CP280", "EBCDIC-CP-IT");
 558                 s_revhash.put("CP284", "EBCDIC-CP-ES");
 559                 s_revhash.put("CP285", "EBCDIC-CP-GB");
 560                 s_revhash.put("CP297", "EBCDIC-CP-FR");
 561                 s_revhash.put("CP420", "EBCDIC-CP-AR1");
 562                 s_revhash.put("CP424", "EBCDIC-CP-HE");
 563                 s_revhash.put("CP500", "EBCDIC-CP-CH");
 564                 s_revhash.put("CP870", "EBCDIC-CP-ROECE");
 565                 s_revhash.put("CP870", "EBCDIC-CP-YU");
 566                 s_revhash.put("CP871", "EBCDIC-CP-IS");
 567                 s_revhash.put("CP918", "EBCDIC-CP-AR2");
 568         }
 569
 570         /**
 571          * Constructor.
 572          */
 573         private MIME2Java() {
 574         }
 575
 576         /**
 577          * Convert a MIME charset name, also known as an XML encoding name, to a Java encoding name.
 578          * @param   mimeCharsetName Case insensitive MIME charset name: <code>UTF-8, US-ASCII, ISO-8859-1,
 579          *                          ISO-8859-2, ISO-8859-3, ISO-8859-4, ISO-8859-5, ISO-8859-6,
 580          *                          ISO-8859-7, ISO-8859-8, ISO-8859-9, ISO-2022-JP, Shift_JIS,
 581          *                          EUC-JP, GB2312, Big5, EUC-KR, ISO-2022-KR, KOI8-R,
 582          *                          EBCDIC-CP-US, EBCDIC-CP-CA, EBCDIC-CP-NL, EBCDIC-CP-DK,
 583          *                          EBCDIC-CP-NO, EBCDIC-CP-FI, EBCDIC-CP-SE, EBCDIC-CP-IT,
 584          *                          EBCDIC-CP-ES, EBCDIC-CP-GB, EBCDIC-CP-FR, EBCDIC-CP-AR1,
 585          *                          EBCDIC-CP-HE, EBCDIC-CP-CH, EBCDIC-CP-ROECE, EBCDIC-CP-YU,
 586          *                          EBCDIC-CP-IS and EBCDIC-CP-AR2</code>.
 587          * @return                  Java encoding name, or <var>null</var> if <var>mimeCharsetName</var>
 588          *                          is unknown.
 589          * @see #reverse
 590          */
 591         public static String convert(String mimeCharsetName) {
 592                 return (String)s_enchash.get(mimeCharsetName.toUpperCase());
 593         }
 594
 595         /**
 596          * Convert a Java encoding name to MIME charset name.
 597          * Available values of <i>encoding</i> are "UTF8", "8859_1", "8859_2", "8859_3", "8859_4",
 598          * "8859_5", "8859_6", "8859_7", "8859_8", "8859_9", "JIS", "SJIS", "EUCJIS",
 599          * "GB2312", "BIG5", "KSC5601", "ISO2022KR",  "KOI8_R", "CP037", "CP277", "CP278",
 600          * "CP280", "CP284", "CP285", "CP297", "CP420", "CP424", "CP500", "CP870", "CP871" and "CP918".
 601          * @param   encoding    Case insensitive Java encoding name: <code>UTF8, 8859_1, 8859_2, 8859_3,
 602          *                      8859_4, 8859_5, 8859_6, 8859_7, 8859_8, 8859_9, JIS, SJIS, EUCJIS,
 603          *                      GB2312, BIG5, KSC5601, ISO2022KR, KOI8_R, CP037, CP277, CP278,
 604          *                      CP280, CP284, CP285, CP297, CP420, CP424, CP500, CP870, CP871
 605          *                      and CP918</code>.
 606          * @return              MIME charset name, or <var>null</var> if <var>encoding</var> is unknown.
 607          * @see #convert
 608          */
 609         public static String reverse(String encoding) {
 610                 return (String)s_revhash.get(encoding.toUpperCase());
 611         }
 612 }