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1 |
| |
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2 |
| package net.sourceforge.pmd.ast; |
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3 |
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4 |
| |
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5 |
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6 |
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7 |
| |
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8 |
| |
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9 |
| public class JavaCharStream implements CharStream { |
|
10 |
| public static final boolean staticFlag = false; |
|
11 |
| |
|
12 |
0
| static final int hexval(char c) throws java.io.IOException {
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|
13 |
0
| switch (c) {
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|
14 |
0
| case '0':
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|
15 |
0
| return 0;
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|
16 |
0
| case '1':
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|
17 |
0
| return 1;
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18 |
0
| case '2':
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19 |
0
| return 2;
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20 |
0
| case '3':
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21 |
0
| return 3;
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|
22 |
0
| case '4':
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23 |
0
| return 4;
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|
24 |
0
| case '5':
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|
25 |
0
| return 5;
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|
26 |
0
| case '6':
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|
27 |
0
| return 6;
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|
28 |
0
| case '7':
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29 |
0
| return 7;
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30 |
0
| case '8':
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31 |
0
| return 8;
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32 |
0
| case '9':
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|
33 |
0
| return 9;
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|
34 |
| |
|
35 |
0
| case 'a':
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|
36 |
0
| case 'A':
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|
37 |
0
| return 10;
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|
38 |
0
| case 'b':
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|
39 |
0
| case 'B':
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|
40 |
0
| return 11;
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|
41 |
0
| case 'c':
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|
42 |
0
| case 'C':
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|
43 |
0
| return 12;
|
|
44 |
0
| case 'd':
|
|
45 |
0
| case 'D':
|
|
46 |
0
| return 13;
|
|
47 |
0
| case 'e':
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|
48 |
0
| case 'E':
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|
49 |
0
| return 14;
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|
50 |
0
| case 'f':
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|
51 |
0
| case 'F':
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|
52 |
0
| return 15;
|
|
53 |
| } |
|
54 |
| |
|
55 |
0
| throw new java.io.IOException();
|
|
56 |
| } |
|
57 |
| |
|
58 |
| public int bufpos = -1; |
|
59 |
| int bufsize; |
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60 |
| int available; |
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61 |
| int tokenBegin; |
|
62 |
| protected int bufline[]; |
|
63 |
| protected int bufcolumn[]; |
|
64 |
| |
|
65 |
| protected int column = 0; |
|
66 |
| protected int line = 1; |
|
67 |
| |
|
68 |
| protected boolean prevCharIsCR = false; |
|
69 |
| protected boolean prevCharIsLF = false; |
|
70 |
| |
|
71 |
| protected java.io.Reader inputStream; |
|
72 |
| |
|
73 |
| protected char[] nextCharBuf; |
|
74 |
| protected char[] buffer; |
|
75 |
| protected int maxNextCharInd = 0; |
|
76 |
| protected int nextCharInd = -1; |
|
77 |
| protected int inBuf = 0; |
|
78 |
| |
|
79 |
0
| protected void ExpandBuff(boolean wrapAround) {
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|
80 |
0
| char[] newbuffer = new char[bufsize + 2048];
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81 |
0
| int newbufline[] = new int[bufsize + 2048];
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82 |
0
| int newbufcolumn[] = new int[bufsize + 2048];
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|
83 |
| |
|
84 |
0
| try {
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|
85 |
0
| if (wrapAround) {
|
|
86 |
0
| System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
|
|
87 |
0
| System.arraycopy(buffer, 0, newbuffer,
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|
88 |
| bufsize - tokenBegin, bufpos); |
|
89 |
0
| buffer = newbuffer;
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|
90 |
| |
|
91 |
0
| System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
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|
92 |
0
| System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos);
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|
93 |
0
| bufline = newbufline;
|
|
94 |
| |
|
95 |
0
| System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
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|
96 |
0
| System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos);
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|
97 |
0
| bufcolumn = newbufcolumn;
|
|
98 |
| |
|
99 |
0
| bufpos += (bufsize - tokenBegin);
|
|
100 |
| } else { |
|
101 |
0
| System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
|
|
102 |
0
| buffer = newbuffer;
|
|
103 |
| |
|
104 |
0
| System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
|
|
105 |
0
| bufline = newbufline;
|
|
106 |
| |
|
107 |
0
| System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
|
|
108 |
0
| bufcolumn = newbufcolumn;
|
|
109 |
| |
|
110 |
0
| bufpos -= tokenBegin;
|
|
111 |
| } |
|
112 |
| } catch (Throwable t) { |
|
113 |
0
| throw new RuntimeException(t.getMessage());
|
|
114 |
| } |
|
115 |
| |
|
116 |
0
| available = (bufsize += 2048);
|
|
117 |
0
| tokenBegin = 0;
|
|
118 |
| } |
|
119 |
| |
|
120 |
4323
| protected void FillBuff() throws java.io.IOException {
|
|
121 |
4323
| int i;
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|
122 |
4323
| if (maxNextCharInd == 4096)
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|
123 |
0
| maxNextCharInd = nextCharInd = 0;
|
|
124 |
| |
|
125 |
4323
| try {
|
|
126 |
?
| if ((i = inputStream.read(nextCharBuf, maxNextCharInd,
|
|
127 |
| 4096 - maxNextCharInd)) == -1) { |
|
128 |
1453
| inputStream.close();
|
|
129 |
1453
| throw new java.io.IOException();
|
|
130 |
| } else |
|
131 |
1461
| maxNextCharInd += i;
|
|
132 |
1461
| return;
|
|
133 |
| } catch (java.io.IOException e) { |
|
134 |
2862
| if (bufpos != 0) {
|
|
135 |
3
| --bufpos;
|
|
136 |
3
| backup(0);
|
|
137 |
| } else { |
|
138 |
2859
| bufline[bufpos] = line;
|
|
139 |
2859
| bufcolumn[bufpos] = column;
|
|
140 |
| } |
|
141 |
2862
| throw e;
|
|
142 |
| } |
|
143 |
| } |
|
144 |
| |
|
145 |
142310
| protected char ReadByte() throws java.io.IOException {
|
|
146 |
142310
| if (++nextCharInd >= maxNextCharInd)
|
|
147 |
4323
| FillBuff();
|
|
148 |
| |
|
149 |
139448
| return nextCharBuf[nextCharInd];
|
|
150 |
| } |
|
151 |
| |
|
152 |
76401
| public char BeginToken() throws java.io.IOException {
|
|
153 |
76401
| if (inBuf > 0) {
|
|
154 |
19777
| --inBuf;
|
|
155 |
| |
|
156 |
19777
| if (++bufpos == bufsize)
|
|
157 |
0
| bufpos = 0;
|
|
158 |
| |
|
159 |
19777
| tokenBegin = bufpos;
|
|
160 |
19777
| return buffer[bufpos];
|
|
161 |
| } |
|
162 |
| |
|
163 |
56624
| tokenBegin = 0;
|
|
164 |
56624
| bufpos = -1;
|
|
165 |
| |
|
166 |
56624
| return readChar();
|
|
167 |
| } |
|
168 |
| |
|
169 |
0
| protected void AdjustBuffSize() {
|
|
170 |
0
| if (available == bufsize) {
|
|
171 |
0
| if (tokenBegin > 2048) {
|
|
172 |
0
| bufpos = 0;
|
|
173 |
0
| available = tokenBegin;
|
|
174 |
| } else |
|
175 |
0
| ExpandBuff(false);
|
|
176 |
0
| } else if (available > tokenBegin)
|
|
177 |
0
| available = bufsize;
|
|
178 |
0
| else if ((tokenBegin - available) < 2048)
|
|
179 |
0
| ExpandBuff(true);
|
|
180 |
| else |
|
181 |
0
| available = tokenBegin;
|
|
182 |
| } |
|
183 |
| |
|
184 |
139448
| protected void UpdateLineColumn(char c) {
|
|
185 |
139448
| column++;
|
|
186 |
| |
|
187 |
139448
| if (prevCharIsLF) {
|
|
188 |
6864
| prevCharIsLF = false;
|
|
189 |
6864
| line += (column = 1);
|
|
190 |
132584
| } else if (prevCharIsCR) {
|
|
191 |
0
| prevCharIsCR = false;
|
|
192 |
0
| if (c == '\n') {
|
|
193 |
0
| prevCharIsLF = true;
|
|
194 |
| } else |
|
195 |
0
| line += (column = 1);
|
|
196 |
| } |
|
197 |
| |
|
198 |
139448
| switch (c) {
|
|
199 |
0
| case '\r':
|
|
200 |
0
| prevCharIsCR = true;
|
|
201 |
0
| break;
|
|
202 |
6904
| case '\n':
|
|
203 |
6904
| prevCharIsLF = true;
|
|
204 |
6904
| break;
|
|
205 |
148
| case '\t':
|
|
206 |
148
| column--;
|
|
207 |
148
| column += (8 - (column & 07));
|
|
208 |
148
| break;
|
|
209 |
132396
| default :
|
|
210 |
132396
| break;
|
|
211 |
| } |
|
212 |
| |
|
213 |
139448
| bufline[bufpos] = line;
|
|
214 |
139448
| bufcolumn[bufpos] = column;
|
|
215 |
| } |
|
216 |
| |
|
217 |
142337
| public char readChar() throws java.io.IOException {
|
|
218 |
142337
| if (inBuf > 0) {
|
|
219 |
31
| --inBuf;
|
|
220 |
| |
|
221 |
31
| if (++bufpos == bufsize)
|
|
222 |
0
| bufpos = 0;
|
|
223 |
| |
|
224 |
31
| return buffer[bufpos];
|
|
225 |
| } |
|
226 |
| |
|
227 |
142306
| char c;
|
|
228 |
| |
|
229 |
142306
| if (++bufpos == available)
|
|
230 |
0
| AdjustBuffSize();
|
|
231 |
| |
|
232 |
?
| if ((buffer[bufpos] = c = ReadByte()) == '\\') {
|
|
233 |
4
| UpdateLineColumn(c);
|
|
234 |
| |
|
235 |
4
| int backSlashCnt = 1;
|
|
236 |
| |
|
237 |
4
| for (; ;)
|
|
238 |
| { |
|
239 |
4
| if (++bufpos == available)
|
|
240 |
0
| AdjustBuffSize();
|
|
241 |
| |
|
242 |
4
| try {
|
|
243 |
?
| if ((buffer[bufpos] = c = ReadByte()) != '\\') {
|
|
244 |
4
| UpdateLineColumn(c);
|
|
245 |
| |
|
246 |
4
| if ((c == 'u') && ((backSlashCnt & 1) == 1)) {
|
|
247 |
0
| if (--bufpos < 0)
|
|
248 |
0
| bufpos = bufsize - 1;
|
|
249 |
| |
|
250 |
0
| break;
|
|
251 |
| } |
|
252 |
| |
|
253 |
4
| backup(backSlashCnt);
|
|
254 |
4
| return '\\';
|
|
255 |
| } |
|
256 |
| } catch (java.io.IOException e) { |
|
257 |
0
| if (backSlashCnt > 1)
|
|
258 |
0
| backup(backSlashCnt);
|
|
259 |
| |
|
260 |
0
| return '\\';
|
|
261 |
| } |
|
262 |
| |
|
263 |
0
| UpdateLineColumn(c);
|
|
264 |
0
| backSlashCnt++;
|
|
265 |
| } |
|
266 |
| |
|
267 |
| |
|
268 |
0
| try {
|
|
269 |
0
| while ((c = ReadByte()) == 'u')
|
|
270 |
0
| ++column;
|
|
271 |
| |
|
272 |
0
| buffer[bufpos] = c = (char) (hexval(c) << 12 |
|
|
273 |
| hexval(ReadByte()) << 8 | |
|
274 |
| hexval(ReadByte()) << 4 | |
|
275 |
| hexval(ReadByte())); |
|
276 |
| |
|
277 |
0
| column += 4;
|
|
278 |
| } catch (java.io.IOException e) { |
|
279 |
0
| throw new RuntimeException("Invalid escape character at line " + line +
|
|
280 |
| " column " + column + "."); |
|
281 |
| } |
|
282 |
| |
|
283 |
0
| if (backSlashCnt == 1)
|
|
284 |
0
| return c;
|
|
285 |
| else { |
|
286 |
0
| backup(backSlashCnt - 1);
|
|
287 |
0
| return '\\';
|
|
288 |
| } |
|
289 |
| } else { |
|
290 |
139440
| UpdateLineColumn(c);
|
|
291 |
139440
| return (c);
|
|
292 |
| } |
|
293 |
| } |
|
294 |
| |
|
295 |
| |
|
296 |
| |
|
297 |
| |
|
298 |
| |
|
299 |
| |
|
300 |
0
| public int getColumn() {
|
|
301 |
0
| return bufcolumn[bufpos];
|
|
302 |
| } |
|
303 |
| |
|
304 |
| |
|
305 |
| |
|
306 |
| |
|
307 |
| |
|
308 |
| |
|
309 |
0
| public int getLine() {
|
|
310 |
0
| return bufline[bufpos];
|
|
311 |
| } |
|
312 |
| |
|
313 |
76375
| public int getEndColumn() {
|
|
314 |
76375
| return bufcolumn[bufpos];
|
|
315 |
| } |
|
316 |
| |
|
317 |
76375
| public int getEndLine() {
|
|
318 |
76375
| return bufline[bufpos];
|
|
319 |
| } |
|
320 |
| |
|
321 |
76375
| public int getBeginColumn() {
|
|
322 |
76375
| return bufcolumn[tokenBegin];
|
|
323 |
| } |
|
324 |
| |
|
325 |
76375
| public int getBeginLine() {
|
|
326 |
76375
| return bufline[tokenBegin];
|
|
327 |
| } |
|
328 |
| |
|
329 |
19800
| public void backup(int amount) {
|
|
330 |
| |
|
331 |
19800
| inBuf += amount;
|
|
332 |
19800
| if ((bufpos -= amount) < 0)
|
|
333 |
0
| bufpos += bufsize;
|
|
334 |
| } |
|
335 |
| |
|
336 |
1461
| public JavaCharStream(java.io.Reader dstream,
|
|
337 |
| int startline, int startcolumn, int buffersize) { |
|
338 |
1461
| inputStream = dstream;
|
|
339 |
1461
| line = startline;
|
|
340 |
1461
| column = startcolumn - 1;
|
|
341 |
| |
|
342 |
1461
| available = bufsize = buffersize;
|
|
343 |
1461
| buffer = new char[buffersize];
|
|
344 |
1461
| bufline = new int[buffersize];
|
|
345 |
1461
| bufcolumn = new int[buffersize];
|
|
346 |
1461
| nextCharBuf = new char[4096];
|
|
347 |
| } |
|
348 |
| |
|
349 |
0
| public JavaCharStream(java.io.Reader dstream,
|
|
350 |
| int startline, int startcolumn) { |
|
351 |
0
| this(dstream, startline, startcolumn, 4096);
|
|
352 |
| } |
|
353 |
| |
|
354 |
1461
| public JavaCharStream(java.io.Reader dstream) {
|
|
355 |
1461
| this(dstream, 1, 1, 4096);
|
|
356 |
| } |
|
357 |
| |
|
358 |
0
| public void ReInit(java.io.Reader dstream,
|
|
359 |
| int startline, int startcolumn, int buffersize) { |
|
360 |
0
| inputStream = dstream;
|
|
361 |
0
| line = startline;
|
|
362 |
0
| column = startcolumn - 1;
|
|
363 |
| |
|
364 |
0
| if (buffer == null || buffersize != buffer.length) {
|
|
365 |
0
| available = bufsize = buffersize;
|
|
366 |
0
| buffer = new char[buffersize];
|
|
367 |
0
| bufline = new int[buffersize];
|
|
368 |
0
| bufcolumn = new int[buffersize];
|
|
369 |
0
| nextCharBuf = new char[4096];
|
|
370 |
| } |
|
371 |
0
| prevCharIsLF = prevCharIsCR = false;
|
|
372 |
0
| tokenBegin = inBuf = maxNextCharInd = 0;
|
|
373 |
0
| nextCharInd = bufpos = -1;
|
|
374 |
| } |
|
375 |
| |
|
376 |
0
| public void ReInit(java.io.Reader dstream,
|
|
377 |
| int startline, int startcolumn) { |
|
378 |
0
| ReInit(dstream, startline, startcolumn, 4096);
|
|
379 |
| } |
|
380 |
| |
|
381 |
0
| public void ReInit(java.io.Reader dstream) {
|
|
382 |
0
| ReInit(dstream, 1, 1, 4096);
|
|
383 |
| } |
|
384 |
| |
|
385 |
0
| public JavaCharStream(java.io.InputStream dstream, int startline,
|
|
386 |
| int startcolumn, int buffersize) { |
|
387 |
0
| this(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
|
|
388 |
| } |
|
389 |
| |
|
390 |
0
| public JavaCharStream(java.io.InputStream dstream, int startline,
|
|
391 |
| int startcolumn) { |
|
392 |
0
| this(dstream, startline, startcolumn, 4096);
|
|
393 |
| } |
|
394 |
| |
|
395 |
0
| public JavaCharStream(java.io.InputStream dstream) {
|
|
396 |
0
| this(dstream, 1, 1, 4096);
|
|
397 |
| } |
|
398 |
| |
|
399 |
0
| public void ReInit(java.io.InputStream dstream, int startline,
|
|
400 |
| int startcolumn, int buffersize) { |
|
401 |
0
| ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
|
|
402 |
| } |
|
403 |
| |
|
404 |
0
| public void ReInit(java.io.InputStream dstream, int startline,
|
|
405 |
| int startcolumn) { |
|
406 |
0
| ReInit(dstream, startline, startcolumn, 4096);
|
|
407 |
| } |
|
408 |
| |
|
409 |
0
| public void ReInit(java.io.InputStream dstream) {
|
|
410 |
0
| ReInit(dstream, 1, 1, 4096);
|
|
411 |
| } |
|
412 |
| |
|
413 |
46968
| public String GetImage() {
|
|
414 |
46968
| if (bufpos >= tokenBegin)
|
|
415 |
46968
| return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
|
|
416 |
| else |
|
417 |
0
| return new String(buffer, tokenBegin, bufsize - tokenBegin) +
|
|
418 |
| new String(buffer, 0, bufpos + 1); |
|
419 |
| } |
|
420 |
| |
|
421 |
147
| public char[] GetSuffix(int len) {
|
|
422 |
147
| char[] ret = new char[len];
|
|
423 |
| |
|
424 |
147
| if ((bufpos + 1) >= len)
|
|
425 |
147
| System.arraycopy(buffer, bufpos - len + 1, ret, 0, len);
|
|
426 |
| else { |
|
427 |
0
| System.arraycopy(buffer, bufsize - (len - bufpos - 1), ret, 0,
|
|
428 |
| len - bufpos - 1); |
|
429 |
0
| System.arraycopy(buffer, 0, ret, len - bufpos - 1, bufpos + 1);
|
|
430 |
| } |
|
431 |
| |
|
432 |
147
| return ret;
|
|
433 |
| } |
|
434 |
| |
|
435 |
0
| public void Done() {
|
|
436 |
0
| nextCharBuf = null;
|
|
437 |
0
| buffer = null;
|
|
438 |
0
| bufline = null;
|
|
439 |
0
| bufcolumn = null;
|
|
440 |
| } |
|
441 |
| |
|
442 |
| |
|
443 |
| |
|
444 |
| |
|
445 |
0
| public void adjustBeginLineColumn(int newLine, int newCol) {
|
|
446 |
0
| int start = tokenBegin;
|
|
447 |
0
| int len;
|
|
448 |
| |
|
449 |
0
| if (bufpos >= tokenBegin) {
|
|
450 |
0
| len = bufpos - tokenBegin + inBuf + 1;
|
|
451 |
| } else { |
|
452 |
0
| len = bufsize - tokenBegin + bufpos + 1 + inBuf;
|
|
453 |
| } |
|
454 |
| |
|
455 |
0
| int i = 0, j = 0, k = 0;
|
|
456 |
0
| int nextColDiff = 0, columnDiff = 0;
|
|
457 |
| |
|
458 |
0
| while (i < len &&
|
|
459 |
| bufline[j = start % bufsize] == bufline[k = ++start % bufsize]) { |
|
460 |
0
| bufline[j] = newLine;
|
|
461 |
0
| nextColDiff = columnDiff + bufcolumn[k] - bufcolumn[j];
|
|
462 |
0
| bufcolumn[j] = newCol + columnDiff;
|
|
463 |
0
| columnDiff = nextColDiff;
|
|
464 |
0
| i++;
|
|
465 |
| } |
|
466 |
| |
|
467 |
0
| if (i < len) {
|
|
468 |
0
| bufline[j] = newLine++;
|
|
469 |
0
| bufcolumn[j] = newCol + columnDiff;
|
|
470 |
| |
|
471 |
0
| while (i++ < len) {
|
|
472 |
0
| if (bufline[j = start % bufsize] != bufline[++start % bufsize])
|
|
473 |
0
| bufline[j] = newLine++;
|
|
474 |
| else |
|
475 |
0
| bufline[j] = newLine;
|
|
476 |
| } |
|
477 |
| } |
|
478 |
| |
|
479 |
0
| line = bufline[j];
|
|
480 |
0
| column = bufcolumn[j];
|
|
481 |
| } |
|
482 |
| |
|
483 |
| } |