001: /*
002: * Licensed to the Apache Software Foundation (ASF) under one or more
003: * contributor license agreements. See the NOTICE file distributed with
004: * this work for additional information regarding copyright ownership.
005: * The ASF licenses this file to You under the Apache License, Version 2.0
006: * (the "License"); you may not use this file except in compliance with
007: * the License. You may obtain a copy of the License at
008: *
009: * http://www.apache.org/licenses/LICENSE-2.0
010: *
011: * Unless required by applicable law or agreed to in writing, software
012: * distributed under the License is distributed on an "AS IS" BASIS,
013: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014: * See the License for the specific language governing permissions and
015: * limitations under the License.
016: */
017:
018: package org.apache.harmony.niochar.charset.additional;
019:
020: import java.nio.charset.Charset;
021: import java.nio.charset.CoderResult;
022: import java.nio.charset.CharsetDecoder;
023: import java.nio.charset.CharsetEncoder;
024: import java.nio.CharBuffer;
025: import java.nio.ByteBuffer;
026:
027: import org.apache.harmony.nio.AddressUtil;
028:
029: public class IBM284 extends Charset {
030:
031: public IBM284(String csName, String[] aliases) {
032: super (csName, aliases);
033: }
034:
035: public boolean contains(Charset cs) {
036: return cs.name().equalsIgnoreCase("IBM037")
037: || cs.name().equalsIgnoreCase("IBM1047")
038: || cs.name().equalsIgnoreCase("IBM273")
039: || cs.name().equalsIgnoreCase("IBM277")
040: || cs.name().equalsIgnoreCase("IBM278")
041: || cs.name().equalsIgnoreCase("IBM280")
042: || cs.name().equalsIgnoreCase("IBM284")
043: || cs.name().equalsIgnoreCase("IBM285")
044: || cs.name().equalsIgnoreCase("IBM297")
045: || cs.name().equalsIgnoreCase("IBM367")
046: || cs.name().equalsIgnoreCase("IBM500")
047: || cs.name().equalsIgnoreCase("IBM871")
048: || cs.name().equalsIgnoreCase("ISO-8859-1")
049: || cs.name().equalsIgnoreCase("US-ASCII");
050: }
051:
052: public CharsetDecoder newDecoder() {
053: return new Decoder(this );
054: }
055:
056: public CharsetEncoder newEncoder() {
057: return new Encoder(this );
058: }
059:
060: private static final class Decoder extends CharsetDecoder {
061: private Decoder(Charset cs) {
062: super (cs, 1, 1);
063:
064: }
065:
066: public native int nDecode(char[] array, int arrPosition,
067: int remaining, long outAddr, int absolutePos);
068:
069: protected CoderResult decodeLoop(ByteBuffer bb, CharBuffer cb) {
070: int cbRemaining = cb.remaining();
071: if (bb.isDirect() && bb.hasRemaining() && cb.hasArray()) {
072: int toProceed = bb.remaining();
073: int cbPos = cb.position();
074: int bbPos = bb.position();
075: boolean throwOverflow = false;
076: if (cbRemaining < toProceed) {
077: toProceed = cbRemaining;
078: throwOverflow = true;
079: }
080: int res = nDecode(cb.array(), cb.arrayOffset() + cbPos,
081: toProceed, AddressUtil
082: .getDirectBufferAddress(bb), bbPos);
083: bb.position(bbPos + res);
084: cb.position(cbPos + res);
085: if (throwOverflow)
086: return CoderResult.OVERFLOW;
087: } else {
088: if (bb.hasArray() && cb.hasArray()) {
089: int rem = bb.remaining();
090: rem = cbRemaining >= rem ? rem : cbRemaining;
091: byte[] bArr = bb.array();
092: char[] cArr = cb.array();
093: int bStart = bb.position();
094: int cStart = cb.position();
095: int i;
096: for (i = bStart; i < bStart + rem; i++) {
097: char in = (char) (bArr[i] & 0xFF);
098: if (in >= 4) {
099: int index = (int) in - 4;
100: cArr[cStart++] = (char) arr[index];
101: } else {
102: cArr[cStart++] = (char) (in & 0xFF);
103: }
104: }
105: bb.position(i);
106: cb.position(cStart);
107: if (rem == cbRemaining && bb.hasRemaining())
108: return CoderResult.OVERFLOW;
109: } else {
110: while (bb.hasRemaining()) {
111: if (cbRemaining == 0)
112: return CoderResult.OVERFLOW;
113: char in = (char) (bb.get() & 0xFF);
114: if (in >= 4) {
115: int index = (int) in - 4;
116: cb.put(arr[index]);
117: } else {
118: cb.put((char) (in & 0xFF));
119: }
120: cbRemaining--;
121: }
122: }
123: }
124: return CoderResult.UNDERFLOW;
125: }
126:
127: final static char[] arr = { 0x009C, 0x0009, 0x0086, 0x007F,
128: 0x0097, 0x008D, 0x008E, 0x000B, 0x000C, 0x000D, 0x000E,
129: 0x000F, 0x0010, 0x0011, 0x0012, 0x0013, 0x009D, 0x0085,
130: 0x0008, 0x0087, 0x0018, 0x0019, 0x0092, 0x008F, 0x001C,
131: 0x001D, 0x001E, 0x001F, 0x0080, 0x0081, 0x0082, 0x0083,
132: 0x0084, 0x000A, 0x0017, 0x001B, 0x0088, 0x0089, 0x008A,
133: 0x008B, 0x008C, 0x0005, 0x0006, 0x0007, 0x0090, 0x0091,
134: 0x0016, 0x0093, 0x0094, 0x0095, 0x0096, 0x0004, 0x0098,
135: 0x0099, 0x009A, 0x009B, 0x0014, 0x0015, 0x009E, 0x001A,
136: 0x0020, 0x00A0, 0x00E2, 0x00E4, 0x00E0, 0x00E1, 0x00E3,
137: 0x00E5, 0x00E7, 0x00A6, 0x005B, 0x002E, 0x003C, 0x0028,
138: 0x002B, 0x007C, 0x0026, 0x00E9, 0x00EA, 0x00EB, 0x00E8,
139: 0x00ED, 0x00EE, 0x00EF, 0x00EC, 0x00DF, 0x005D, 0x0024,
140: 0x002A, 0x0029, 0x003B, 0x00AC, 0x002D, 0x002F, 0x00C2,
141: 0x00C4, 0x00C0, 0x00C1, 0x00C3, 0x00C5, 0x00C7, 0x0023,
142: 0x00F1, 0x002C, 0x0025, 0x005F, 0x003E, 0x003F, 0x00F8,
143: 0x00C9, 0x00CA, 0x00CB, 0x00C8, 0x00CD, 0x00CE, 0x00CF,
144: 0x00CC, 0x0060, 0x003A, 0x00D1, 0x0040, 0x0027, 0x003D,
145: 0x0022, 0x00D8, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065,
146: 0x0066, 0x0067, 0x0068, 0x0069, 0x00AB, 0x00BB, 0x00F0,
147: 0x00FD, 0x00FE, 0x00B1, 0x00B0, 0x006A, 0x006B, 0x006C,
148: 0x006D, 0x006E, 0x006F, 0x0070, 0x0071, 0x0072, 0x00AA,
149: 0x00BA, 0x00E6, 0x00B8, 0x00C6, 0x00A4, 0x00B5, 0x00A8,
150: 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 0x0078, 0x0079,
151: 0x007A, 0x00A1, 0x00BF, 0x00D0, 0x00DD, 0x00DE, 0x00AE,
152: 0x00A2, 0x00A3, 0x00A5, 0x00B7, 0x00A9, 0x00A7, 0x00B6,
153: 0x00BC, 0x00BD, 0x00BE, 0x005E, 0x0021, 0x00AF, 0x007E,
154: 0x00B4, 0x00D7, 0x007B, 0x0041, 0x0042, 0x0043, 0x0044,
155: 0x0045, 0x0046, 0x0047, 0x0048, 0x0049, 0x00AD, 0x00F4,
156: 0x00F6, 0x00F2, 0x00F3, 0x00F5, 0x007D, 0x004A, 0x004B,
157: 0x004C, 0x004D, 0x004E, 0x004F, 0x0050, 0x0051, 0x0052,
158: 0x00B9, 0x00FB, 0x00FC, 0x00F9, 0x00FA, 0x00FF, 0x005C,
159: 0x00F7, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, 0x0058,
160: 0x0059, 0x005A, 0x00B2, 0x00D4, 0x00D6, 0x00D2, 0x00D3,
161: 0x00D5, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
162: 0x0036, 0x0037, 0x0038, 0x0039, 0x00B3, 0x00DB, 0x00DC,
163: 0x00D9, 0x00DA, 0x009F };
164: }
165:
166: private static final class Encoder extends CharsetEncoder {
167: private Encoder(Charset cs) {
168: super (cs, 1, 1);
169: }
170:
171: private native void nEncode(long outAddr, int absolutePos,
172: char[] array, int arrPosition, int[] res);
173:
174: protected CoderResult encodeLoop(CharBuffer cb, ByteBuffer bb) {
175: int bbRemaining = bb.remaining();
176: if (bb.isDirect() && cb.hasRemaining() && cb.hasArray()) {
177: int toProceed = cb.remaining();
178: int cbPos = cb.position();
179: int bbPos = bb.position();
180: boolean throwOverflow = false;
181: if (bbRemaining < toProceed) {
182: toProceed = bbRemaining;
183: throwOverflow = true;
184: }
185: int[] res = { toProceed, 0 };
186: nEncode(AddressUtil.getDirectBufferAddress(bb), bbPos,
187: cb.array(), cb.arrayOffset() + cbPos, res);
188: if (res[0] <= 0) {
189: bb.position(bbPos - res[0]);
190: cb.position(cbPos - res[0]);
191: if (res[1] != 0) {
192: if (res[1] < 0)
193: return CoderResult
194: .malformedForLength(-res[1]);
195: else
196: return CoderResult
197: .unmappableForLength(res[1]);
198: }
199: } else {
200: bb.position(bbPos + res[0]);
201: cb.position(cbPos + res[0]);
202: if (throwOverflow)
203: return CoderResult.OVERFLOW;
204: }
205: } else {
206: if (bb.hasArray() && cb.hasArray()) {
207: byte[] byteArr = bb.array();
208: char[] charArr = cb.array();
209: int rem = cb.remaining();
210: int byteArrStart = bb.position();
211: rem = bbRemaining <= rem ? bbRemaining : rem;
212: int x;
213: for (x = cb.position(); x < cb.position() + rem; x++) {
214: char c = charArr[x];
215: if (c > (char) 0x00FF) {
216: if (c >= 0xD800 && c <= 0xDFFF) {
217: if (x + 1 < cb.limit()) {
218: char c1 = charArr[x + 1];
219: if (c1 >= 0xD800 && c1 <= 0xDFFF) {
220: cb.position(x);
221: bb.position(byteArrStart);
222: return CoderResult
223: .unmappableForLength(2);
224: }
225: } else {
226: cb.position(x);
227: bb.position(byteArrStart);
228: return CoderResult.UNDERFLOW;
229: }
230: cb.position(x);
231: bb.position(byteArrStart);
232: return CoderResult
233: .malformedForLength(1);
234: }
235: cb.position(x);
236: bb.position(byteArrStart);
237: return CoderResult.unmappableForLength(1);
238: } else {
239: if (c < 0x04) {
240: byteArr[byteArrStart++] = (byte) c;
241: } else {
242: int index = (int) c >> 8;
243: index = encodeIndex[index];
244: if (index < 0) {
245: cb.position(x);
246: bb.position(byteArrStart);
247: return CoderResult
248: .unmappableForLength(1);
249: }
250: index <<= 8;
251: index += (int) c & 0xFF;
252: if ((byte) arr[index] != 0) {
253: byteArr[byteArrStart++] = (byte) arr[index];
254: } else {
255: cb.position(x);
256: bb.position(byteArrStart);
257: return CoderResult
258: .unmappableForLength(1);
259: }
260: }
261: }
262: }
263: cb.position(x);
264: bb.position(byteArrStart);
265: if (rem == bbRemaining && cb.hasRemaining()) {
266: return CoderResult.OVERFLOW;
267: }
268: } else {
269: while (cb.hasRemaining()) {
270: if (bbRemaining == 0)
271: return CoderResult.OVERFLOW;
272: char c = cb.get();
273: if (c > (char) 0x00FF) {
274: if (c >= 0xD800 && c <= 0xDFFF) {
275: if (cb.hasRemaining()) {
276: char c1 = cb.get();
277: if (c1 >= 0xD800 && c1 <= 0xDFFF) {
278: cb.position(cb.position() - 2);
279: return CoderResult
280: .unmappableForLength(2);
281: } else {
282: cb.position(cb.position() - 1);
283: }
284: } else {
285: cb.position(cb.position() - 1);
286: return CoderResult.UNDERFLOW;
287: }
288: cb.position(cb.position() - 1);
289: return CoderResult
290: .malformedForLength(1);
291: }
292: cb.position(cb.position() - 1);
293: return CoderResult.unmappableForLength(1);
294: } else {
295: if (c < 0x04) {
296: bb.put((byte) c);
297: } else {
298: int index = (int) c >> 8;
299: index = encodeIndex[index];
300: if (index < 0) {
301: cb.position(cb.position() - 1);
302: return CoderResult
303: .unmappableForLength(1);
304: }
305: index <<= 8;
306: index += (int) c & 0xFF;
307: if ((byte) arr[index] != 0) {
308: bb.put((byte) arr[index]);
309: } else {
310: cb.position(cb.position() - 1);
311: return CoderResult
312: .unmappableForLength(1);
313: }
314: }
315: bbRemaining--;
316: }
317: }
318: }
319: }
320: return CoderResult.UNDERFLOW;
321: }
322:
323: final static char arr[] = {
324:
325: 0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F, 0x16, 0x05,
326: 0x25, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12,
327: 0x13, 0x3C, 0x3D, 0x32, 0x26, 0x18, 0x19, 0x3F, 0x27,
328: 0x1C, 0x1D, 0x1E, 0x1F, 0x40, 0xBB, 0x7F, 0x69, 0x5B,
329: 0x6C, 0x50, 0x7D, 0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60,
330: 0x4B, 0x61, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6,
331: 0xF7, 0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
332: 0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8,
333: 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8,
334: 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9,
335: 0x4A, 0xE0, 0x5A, 0xBA, 0x6D, 0x79, 0x81, 0x82, 0x83,
336: 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93,
337: 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4,
338: 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xBD,
339: 0x07, 0x20, 0x21, 0x22, 0x23, 0x24, 0x15, 0x06, 0x17,
340: 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x09, 0x0A, 0x1B, 0x30,
341: 0x31, 0x1A, 0x33, 0x34, 0x35, 0x36, 0x08, 0x38, 0x39,
342: 0x3A, 0x3B, 0x04, 0x14, 0x3E, 0xFF, 0x41, 0xAA, 0xB0,
343: 0xB1, 0x9F, 0xB2, 0x49, 0xB5, 0xA1, 0xB4, 0x9A, 0x8A,
344: 0x5F, 0xCA, 0xAF, 0xBC, 0x90, 0x8F, 0xEA, 0xFA, 0xBE,
345: 0xA0, 0xB6, 0xB3, 0x9D, 0xDA, 0x9B, 0x8B, 0xB7, 0xB8,
346: 0xB9, 0xAB, 0x64, 0x65, 0x62, 0x66, 0x63, 0x67, 0x9E,
347: 0x68, 0x74, 0x71, 0x72, 0x73, 0x78, 0x75, 0x76, 0x77,
348: 0xAC, 0x7B, 0xED, 0xEE, 0xEB, 0xEF, 0xEC, 0xBF, 0x80,
349: 0xFD, 0xFE, 0xFB, 0xFC, 0xAD, 0xAE, 0x59, 0x44, 0x45,
350: 0x42, 0x46, 0x43, 0x47, 0x9C, 0x48, 0x54, 0x51, 0x52,
351: 0x53, 0x58, 0x55, 0x56, 0x57, 0x8C, 0x6A, 0xCD, 0xCE,
352: 0xCB, 0xCF, 0xCC, 0xE1, 0x70, 0xDD, 0xDE, 0xDB, 0xDC,
353: 0x8D, 0x8E, 0xDF };
354:
355: final static int[] encodeIndex = { 0, -1, -1, -1, -1, -1, -1,
356: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
357: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
358: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
359: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
360: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
361: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
362: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
363: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
364: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
365: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
366: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
367: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
368: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
369: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
370: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
371: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
372: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
373: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
374: }
375: }
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