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 TIS_620 extends Charset {
030:
031: public TIS_620(String csName, String[] aliases) {
032: super (csName, aliases);
033: }
034:
035: public boolean contains(Charset cs) {
036: return cs.name().equalsIgnoreCase("IBM367")
037: || cs.name().equalsIgnoreCase("TIS-620")
038: || cs.name().equalsIgnoreCase("US-ASCII");
039: }
040:
041: public CharsetDecoder newDecoder() {
042: return new Decoder(this );
043: }
044:
045: public CharsetEncoder newEncoder() {
046: return new Encoder(this );
047: }
048:
049: private static final class Decoder extends CharsetDecoder {
050: private Decoder(Charset cs) {
051: super (cs, 1, 1);
052:
053: }
054:
055: public native int nDecode(char[] array, int arrPosition,
056: int remaining, long outAddr, int absolutePos);
057:
058: protected CoderResult decodeLoop(ByteBuffer bb, CharBuffer cb) {
059: int cbRemaining = cb.remaining();
060: if (bb.isDirect() && bb.hasRemaining() && cb.hasArray()) {
061: int toProceed = bb.remaining();
062: int cbPos = cb.position();
063: int bbPos = bb.position();
064: boolean throwOverflow = false;
065: if (cbRemaining < toProceed) {
066: toProceed = cbRemaining;
067: throwOverflow = true;
068: }
069: int res = nDecode(cb.array(), cb.arrayOffset() + cbPos,
070: toProceed, AddressUtil
071: .getDirectBufferAddress(bb), bbPos);
072: if (res <= 0) {
073: bb.position(bbPos - res);
074: cb.position(cbPos - res);
075: return CoderResult.unmappableForLength(1);
076: } else {
077: cb.position(cbPos + res);
078: bb.position(bbPos + res);
079: if (throwOverflow)
080: return CoderResult.OVERFLOW;
081: }
082: } else {
083: if (bb.hasArray() && cb.hasArray()) {
084: int rem = bb.remaining();
085: rem = cbRemaining >= rem ? rem : cbRemaining;
086: byte[] bArr = bb.array();
087: char[] cArr = cb.array();
088: int bStart = bb.position();
089: int cStart = cb.position();
090: int i;
091: for (i = bStart; i < bStart + rem; i++) {
092: char in = (char) (bArr[i] & 0xFF);
093: if (in >= 26) {
094: int index = (int) in - 26;
095: if (arr[index] != 0x0000) {
096: cArr[cStart++] = (char) arr[index];
097: } else {
098: bb.position(i);
099: cb.position(cStart);
100: return CoderResult
101: .unmappableForLength(1);
102: }
103: } else {
104: cArr[cStart++] = (char) (in & 0xFF);
105: }
106: }
107: bb.position(i);
108: cb.position(cStart);
109: if (rem == cbRemaining && bb.hasRemaining())
110: return CoderResult.OVERFLOW;
111: } else {
112: while (bb.hasRemaining()) {
113: if (cbRemaining == 0)
114: return CoderResult.OVERFLOW;
115: char in = (char) (bb.get() & 0xFF);
116: if (in >= 26) {
117: int index = (int) in - 26;
118: if (arr[index] != 0x0000) {
119: cb.put(arr[index]);
120: } else {
121: bb.position(bb.position() - 1);
122: return CoderResult
123: .unmappableForLength(1);
124: }
125: } else {
126: cb.put((char) (in & 0xFF));
127: }
128: cbRemaining--;
129: }
130: }
131: }
132: return CoderResult.UNDERFLOW;
133: }
134:
135: final static char[] arr = { 0x001C, 0x001B, 0x007F, 0x001D,
136: 0x001E, 0x001F, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024,
137: 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002A, 0x002B,
138: 0x002C, 0x002D, 0x002E, 0x002F, 0x0030, 0x0031, 0x0032,
139: 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 0x0039,
140: 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, 0x0040,
141: 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
142: 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E,
143: 0x004F, 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055,
144: 0x0056, 0x0057, 0x0058, 0x0059, 0x005A, 0x005B, 0x005C,
145: 0x005D, 0x005E, 0x005F, 0x0060, 0x0061, 0x0062, 0x0063,
146: 0x0064, 0x0065, 0x0066, 0x0067, 0x0068, 0x0069, 0x006A,
147: 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, 0x0070, 0x0071,
148: 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 0x0078,
149: 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x001A,
150: 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
151: 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
152: 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
153: 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
154: 0x0000, 0x0000, 0x0000, 0x0000, 0x0E48, 0x0E01, 0x0E02,
155: 0x0E03, 0x0E04, 0x0E05, 0x0E06, 0x0E07, 0x0E08, 0x0E09,
156: 0x0E0A, 0x0E0B, 0x0E0C, 0x0E0D, 0x0E0E, 0x0E0F, 0x0E10,
157: 0x0E11, 0x0E12, 0x0E13, 0x0E14, 0x0E15, 0x0E16, 0x0E17,
158: 0x0E18, 0x0E19, 0x0E1A, 0x0E1B, 0x0E1C, 0x0E1D, 0x0E1E,
159: 0x0E1F, 0x0E20, 0x0E21, 0x0E22, 0x0E23, 0x0E24, 0x0E25,
160: 0x0E26, 0x0E27, 0x0E28, 0x0E29, 0x0E2A, 0x0E2B, 0x0E2C,
161: 0x0E2D, 0x0E2E, 0x0E2F, 0x0E30, 0x0E31, 0x0E32, 0x0E33,
162: 0x0E34, 0x0E35, 0x0E36, 0x0E37, 0x0E38, 0x0E39, 0x0E3A,
163: 0x0E49, 0x0E4A, 0x0E4B, 0x0E4C, 0x0E3F, 0x0E40, 0x0E41,
164: 0x0E42, 0x0E43, 0x0E44, 0x0E45, 0x0E46, 0x0E47, 0x0E48,
165: 0x0E49, 0x0E4A, 0x0E4B, 0x0E4C, 0x0E4D, 0x0E4E, 0x0E4F,
166: 0x0E50, 0x0E51, 0x0E52, 0x0E53, 0x0E54, 0x0E55, 0x0E56,
167: 0x0E57, 0x0E58, 0x0E59, 0x0E5A, 0x0E5B, 0x00A2, 0x00AC,
168: 0x00A6, 0x00A0 };
169: }
170:
171: private static final class Encoder extends CharsetEncoder {
172: private Encoder(Charset cs) {
173: super (cs, 1, 1);
174: }
175:
176: private native void nEncode(long outAddr, int absolutePos,
177: char[] array, int arrPosition, int[] res);
178:
179: protected CoderResult encodeLoop(CharBuffer cb, ByteBuffer bb) {
180: int bbRemaining = bb.remaining();
181: if (bb.isDirect() && cb.hasRemaining() && cb.hasArray()) {
182: int toProceed = cb.remaining();
183: int cbPos = cb.position();
184: int bbPos = bb.position();
185: boolean throwOverflow = false;
186: if (bbRemaining < toProceed) {
187: toProceed = bbRemaining;
188: throwOverflow = true;
189: }
190: int[] res = { toProceed, 0 };
191: nEncode(AddressUtil.getDirectBufferAddress(bb), bbPos,
192: cb.array(), cb.arrayOffset() + cbPos, res);
193: if (res[0] <= 0) {
194: bb.position(bbPos - res[0]);
195: cb.position(cbPos - res[0]);
196: if (res[1] != 0) {
197: if (res[1] < 0)
198: return CoderResult
199: .malformedForLength(-res[1]);
200: else
201: return CoderResult
202: .unmappableForLength(res[1]);
203: }
204: } else {
205: bb.position(bbPos + res[0]);
206: cb.position(cbPos + res[0]);
207: if (throwOverflow)
208: return CoderResult.OVERFLOW;
209: }
210: } else {
211: if (bb.hasArray() && cb.hasArray()) {
212: byte[] byteArr = bb.array();
213: char[] charArr = cb.array();
214: int rem = cb.remaining();
215: int byteArrStart = bb.position();
216: rem = bbRemaining <= rem ? bbRemaining : rem;
217: int x;
218: for (x = cb.position(); x < cb.position() + rem; x++) {
219: char c = charArr[x];
220: if (c > (char) 0x0E5B) {
221: if (c >= 0xD800 && c <= 0xDFFF) {
222: if (x + 1 < cb.limit()) {
223: char c1 = charArr[x + 1];
224: if (c1 >= 0xD800 && c1 <= 0xDFFF) {
225: cb.position(x);
226: bb.position(byteArrStart);
227: return CoderResult
228: .unmappableForLength(2);
229: }
230: } else {
231: cb.position(x);
232: bb.position(byteArrStart);
233: return CoderResult.UNDERFLOW;
234: }
235: cb.position(x);
236: bb.position(byteArrStart);
237: return CoderResult
238: .malformedForLength(1);
239: }
240: cb.position(x);
241: bb.position(byteArrStart);
242: return CoderResult.unmappableForLength(1);
243: } else {
244: if (c < 0x1A) {
245: byteArr[byteArrStart++] = (byte) c;
246: } else {
247: int index = (int) c >> 8;
248: index = encodeIndex[index];
249: if (index < 0) {
250: cb.position(x);
251: bb.position(byteArrStart);
252: return CoderResult
253: .unmappableForLength(1);
254: }
255: index <<= 8;
256: index += (int) c & 0xFF;
257: if ((byte) arr[index] != 0) {
258: byteArr[byteArrStart++] = (byte) arr[index];
259: } else {
260: cb.position(x);
261: bb.position(byteArrStart);
262: return CoderResult
263: .unmappableForLength(1);
264: }
265: }
266: }
267: }
268: cb.position(x);
269: bb.position(byteArrStart);
270: if (rem == bbRemaining && cb.hasRemaining()) {
271: return CoderResult.OVERFLOW;
272: }
273: } else {
274: while (cb.hasRemaining()) {
275: if (bbRemaining == 0)
276: return CoderResult.OVERFLOW;
277: char c = cb.get();
278: if (c > (char) 0x0E5B) {
279: if (c >= 0xD800 && c <= 0xDFFF) {
280: if (cb.hasRemaining()) {
281: char c1 = cb.get();
282: if (c1 >= 0xD800 && c1 <= 0xDFFF) {
283: cb.position(cb.position() - 2);
284: return CoderResult
285: .unmappableForLength(2);
286: } else {
287: cb.position(cb.position() - 1);
288: }
289: } else {
290: cb.position(cb.position() - 1);
291: return CoderResult.UNDERFLOW;
292: }
293: cb.position(cb.position() - 1);
294: return CoderResult
295: .malformedForLength(1);
296: }
297: cb.position(cb.position() - 1);
298: return CoderResult.unmappableForLength(1);
299: } else {
300: if (c < 0x1A) {
301: bb.put((byte) c);
302: } else {
303: int index = (int) c >> 8;
304: index = encodeIndex[index];
305: if (index < 0) {
306: cb.position(cb.position() - 1);
307: return CoderResult
308: .unmappableForLength(1);
309: }
310: index <<= 8;
311: index += (int) c & 0xFF;
312: if ((byte) arr[index] != 0) {
313: bb.put((byte) arr[index]);
314: } else {
315: cb.position(cb.position() - 1);
316: return CoderResult
317: .unmappableForLength(1);
318: }
319: }
320: bbRemaining--;
321: }
322: }
323: }
324: }
325: return CoderResult.UNDERFLOW;
326: }
327:
328: final static char arr[] = {
329:
330: 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
331: 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12,
332: 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x7F, 0x1B,
333: 0x1A, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24,
334: 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D,
335: 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
336: 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
337: 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
338: 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51,
339: 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A,
340: 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63,
341: 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C,
342: 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75,
343: 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E,
344: 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
345: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
346: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
347: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFC,
348: 0x00, 0x00, 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00,
349: 0xFD, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
350: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
351: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
352: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
353: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
354: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
355: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
356: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
357: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
358: 0x00, 0x00, 0x00,
359:
360: 0x00, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
361: 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1,
362: 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA,
363: 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3,
364: 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC,
365: 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5,
366: 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0x00, 0x00, 0x00, 0x00,
367: 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
368: 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0,
369: 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9,
370: 0xFA, 0xFB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
371: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
372: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
373: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
374: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
375: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
376: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
377: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
378: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
379: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
380: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
381: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
382: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
383: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
384: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
385: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
386: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
387: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
388: 0x00, 0x00, 0x00, 0x00 };
389:
390: final static int[] encodeIndex = { 0, -1, -1, -1, -1, -1, -1,
391: -1, -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1,
392: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
393: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
394: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
395: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
396: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
397: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
398: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
399: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
400: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
401: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
402: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
403: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
404: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
405: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
406: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
407: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
408: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
409: }
410: }
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