| 1 |
|
|
| 2 |
|
package org.apache.commons.configuration.plist; |
| 3 |
|
|
| 4 |
|
|
| 5 |
|
|
| 6 |
|
|
| 7 |
|
|
| 8 |
|
|
| 9 |
|
class SimpleCharStream |
| 10 |
|
{ |
| 11 |
|
public static final boolean class="keyword">staticFlag = false; |
| 12 |
|
int bufsize; |
| 13 |
|
int available; |
| 14 |
|
int tokenBegin; |
| 15 |
54 |
public int bufpos = -1; |
| 16 |
|
protected int bufline[]; |
| 17 |
|
protected int bufcolumn[]; |
| 18 |
|
|
| 19 |
54 |
protected int column = 0; |
| 20 |
54 |
protected int line = 1; |
| 21 |
|
|
| 22 |
54 |
protected boolean prevCharIsCR = false; |
| 23 |
54 |
protected boolean prevCharIsLF = false; |
| 24 |
|
|
| 25 |
|
protected java.io.Reader inputStream; |
| 26 |
|
|
| 27 |
|
protected char[] buffer; |
| 28 |
54 |
protected int maxNextCharInd = 0; |
| 29 |
54 |
protected int inBuf = 0; |
| 30 |
|
|
| 31 |
|
protected void ExpandBuff(boolean wrapAround) |
| 32 |
|
{ |
| 33 |
0 |
char[] newbuffer = new class="keyword">char[bufsize + 2048]; |
| 34 |
0 |
int newbufline[] = new class="keyword">int[bufsize + 2048]; |
| 35 |
0 |
int newbufcolumn[] = new class="keyword">int[bufsize + 2048]; |
| 36 |
|
|
| 37 |
|
try |
| 38 |
|
{ |
| 39 |
0 |
if (wrapAround) |
| 40 |
|
{ |
| 41 |
0 |
System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin); |
| 42 |
0 |
System.arraycopy(buffer, 0, newbuffer, |
| 43 |
|
bufsize - tokenBegin, bufpos); |
| 44 |
0 |
buffer = newbuffer; |
| 45 |
|
|
| 46 |
0 |
System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin); |
| 47 |
0 |
System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos); |
| 48 |
0 |
bufline = newbufline; |
| 49 |
|
|
| 50 |
0 |
System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin); |
| 51 |
0 |
System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos); |
| 52 |
0 |
bufcolumn = newbufcolumn; |
| 53 |
|
|
| 54 |
0 |
maxNextCharInd = (bufpos += (bufsize - tokenBegin)); |
| 55 |
|
} |
| 56 |
|
else |
| 57 |
|
{ |
| 58 |
0 |
System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin); |
| 59 |
0 |
buffer = newbuffer; |
| 60 |
|
|
| 61 |
0 |
System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin); |
| 62 |
0 |
bufline = newbufline; |
| 63 |
|
|
| 64 |
0 |
System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin); |
| 65 |
0 |
bufcolumn = newbufcolumn; |
| 66 |
|
|
| 67 |
0 |
maxNextCharInd = (bufpos -= tokenBegin); |
| 68 |
|
} |
| 69 |
0 |
} |
| 70 |
|
catch (Throwable t) |
| 71 |
|
{ |
| 72 |
0 |
throw new Error(t.getMessage()); |
| 73 |
|
} |
| 74 |
|
|
| 75 |
|
|
| 76 |
0 |
bufsize += 2048; |
| 77 |
0 |
available = bufsize; |
| 78 |
0 |
tokenBegin = 0; |
| 79 |
0 |
} |
| 80 |
|
|
| 81 |
|
protected void FillBuff() throws java.io.IOException |
| 82 |
|
{ |
| 83 |
126 |
if (maxNextCharInd == available) |
| 84 |
|
{ |
| 85 |
0 |
if (available == bufsize) |
| 86 |
|
{ |
| 87 |
0 |
if (tokenBegin > 2048) |
| 88 |
|
{ |
| 89 |
0 |
bufpos = maxNextCharInd = 0; |
| 90 |
0 |
available = tokenBegin; |
| 91 |
|
} |
| 92 |
0 |
else if (tokenBegin < 0) |
| 93 |
0 |
bufpos = maxNextCharInd = 0; |
| 94 |
|
else |
| 95 |
0 |
ExpandBuff(false); |
| 96 |
|
} |
| 97 |
0 |
else if (available > tokenBegin) |
| 98 |
0 |
available = bufsize; |
| 99 |
0 |
else if ((tokenBegin - available) < 2048) |
| 100 |
0 |
ExpandBuff(true); |
| 101 |
|
else |
| 102 |
0 |
available = tokenBegin; |
| 103 |
|
} |
| 104 |
|
|
| 105 |
|
int i; |
| 106 |
|
try { |
| 107 |
126 |
if ((i = inputStream.read(buffer, maxNextCharInd, |
| 108 |
|
available - maxNextCharInd)) == -1) |
| 109 |
|
{ |
| 110 |
45 |
inputStream.close(); |
| 111 |
45 |
throw new java.io.IOException(); |
| 112 |
|
} |
| 113 |
|
else |
| 114 |
42 |
maxNextCharInd += i; |
| 115 |
42 |
return; |
| 116 |
|
} |
| 117 |
|
catch(java.io.IOException e) { |
| 118 |
84 |
--bufpos; |
| 119 |
84 |
backup(0); |
| 120 |
84 |
if (tokenBegin == -1) |
| 121 |
84 |
tokenBegin = bufpos; |
| 122 |
84 |
throw e; |
| 123 |
|
} |
| 124 |
|
} |
| 125 |
|
|
| 126 |
|
public char BeginToken() throws java.io.IOException |
| 127 |
|
{ |
| 128 |
17769 |
tokenBegin = -1; |
| 129 |
17769 |
char c = readChar(); |
| 130 |
17685 |
tokenBegin = bufpos; |
| 131 |
|
|
| 132 |
17685 |
return c; |
| 133 |
|
} |
| 134 |
|
|
| 135 |
|
protected void UpdateLineColumn(char c) |
| 136 |
|
{ |
| 137 |
29811 |
column++; |
| 138 |
|
|
| 139 |
29811 |
if (prevCharIsLF) |
| 140 |
|
{ |
| 141 |
1674 |
prevCharIsLF = false; |
| 142 |
1674 |
line += (column = 1); |
| 143 |
|
} |
| 144 |
28137 |
else if (prevCharIsCR) |
| 145 |
|
{ |
| 146 |
1599 |
prevCharIsCR = false; |
| 147 |
1599 |
if (c == '\n') |
| 148 |
|
{ |
| 149 |
1599 |
prevCharIsLF = true; |
| 150 |
|
} |
| 151 |
|
else |
| 152 |
0 |
line += (column = 1); |
| 153 |
|
} |
| 154 |
|
|
| 155 |
29811 |
switch (c) |
| 156 |
|
{ |
| 157 |
|
case '\r' : |
| 158 |
1599 |
prevCharIsCR = true; |
| 159 |
1599 |
break; |
| 160 |
|
case '\n' : |
| 161 |
1713 |
prevCharIsLF = true; |
| 162 |
1713 |
break; |
| 163 |
|
case '\t' : |
| 164 |
0 |
column--; |
| 165 |
0 |
column += (8 - (column & 07)); |
| 166 |
0 |
break; |
| 167 |
|
default : |
| 168 |
|
break; |
| 169 |
|
} |
| 170 |
|
|
| 171 |
29811 |
bufline[bufpos] = line; |
| 172 |
29811 |
bufcolumn[bufpos] = column; |
| 173 |
29811 |
} |
| 174 |
|
|
| 175 |
|
public char readChar() throws java.io.IOException |
| 176 |
|
{ |
| 177 |
31053 |
if (inBuf > 0) |
| 178 |
|
{ |
| 179 |
1158 |
--inBuf; |
| 180 |
|
|
| 181 |
1158 |
if (++bufpos == bufsize) |
| 182 |
0 |
bufpos = 0; |
| 183 |
|
|
| 184 |
1158 |
return buffer[bufpos]; |
| 185 |
|
} |
| 186 |
|
|
| 187 |
29895 |
if (++bufpos >= maxNextCharInd) |
| 188 |
126 |
FillBuff(); |
| 189 |
|
|
| 190 |
29811 |
char c = buffer[bufpos]; |
| 191 |
|
|
| 192 |
29811 |
UpdateLineColumn(c); |
| 193 |
29811 |
return (c); |
| 194 |
|
} |
| 195 |
|
|
| 196 |
|
|
| 197 |
|
|
| 198 |
|
|
| 199 |
|
|
| 200 |
|
|
| 201 |
|
public int getColumn() { |
| 202 |
0 |
return bufcolumn[bufpos]; |
| 203 |
|
} |
| 204 |
|
|
| 205 |
|
|
| 206 |
|
|
| 207 |
|
|
| 208 |
|
|
| 209 |
|
|
| 210 |
|
public int getLine() { |
| 211 |
0 |
return bufline[bufpos]; |
| 212 |
|
} |
| 213 |
|
|
| 214 |
|
public int getEndColumn() { |
| 215 |
4449 |
return bufcolumn[bufpos]; |
| 216 |
|
} |
| 217 |
|
|
| 218 |
|
public int getEndLine() { |
| 219 |
4449 |
return bufline[bufpos]; |
| 220 |
|
} |
| 221 |
|
|
| 222 |
|
public int getBeginColumn() { |
| 223 |
4449 |
return bufcolumn[tokenBegin]; |
| 224 |
|
} |
| 225 |
|
|
| 226 |
|
public int getBeginLine() { |
| 227 |
4449 |
return bufline[tokenBegin]; |
| 228 |
|
} |
| 229 |
|
|
| 230 |
|
public void backup(int amount) { |
| 231 |
|
|
| 232 |
5685 |
inBuf += amount; |
| 233 |
5685 |
if ((bufpos -= amount) < 0) |
| 234 |
3 |
bufpos += bufsize; |
| 235 |
5685 |
} |
| 236 |
|
|
| 237 |
|
public SimpleCharStream(java.io.Reader dstream, int startline, |
| 238 |
|
int startcolumn, class="keyword">int buffersize) |
| 239 |
54 |
{ |
| 240 |
54 |
inputStream = dstream; |
| 241 |
54 |
line = startline; |
| 242 |
54 |
column = startcolumn - 1; |
| 243 |
|
|
| 244 |
54 |
available = bufsize = buffersize; |
| 245 |
54 |
buffer = new char[buffersize]; |
| 246 |
54 |
bufline = new int[buffersize]; |
| 247 |
54 |
bufcolumn = new int[buffersize]; |
| 248 |
54 |
} |
| 249 |
|
|
| 250 |
|
public SimpleCharStream(java.io.Reader dstream, int startline, |
| 251 |
|
int startcolumn) |
| 252 |
|
{ |
| 253 |
54 |
this(dstream, startline, startcolumn, 4096); |
| 254 |
54 |
} |
| 255 |
|
|
| 256 |
|
public SimpleCharStream(java.io.Reader dstream) |
| 257 |
|
{ |
| 258 |
0 |
this(dstream, 1, 1, 4096); |
| 259 |
0 |
} |
| 260 |
|
public void ReInit(java.io.Reader dstream, int startline, |
| 261 |
|
int startcolumn, class="keyword">int buffersize) |
| 262 |
|
{ |
| 263 |
0 |
inputStream = dstream; |
| 264 |
0 |
line = startline; |
| 265 |
0 |
column = startcolumn - 1; |
| 266 |
|
|
| 267 |
0 |
if (buffer == null || buffersize != buffer.length) |
| 268 |
|
{ |
| 269 |
0 |
available = bufsize = buffersize; |
| 270 |
0 |
buffer = new char[buffersize]; |
| 271 |
0 |
bufline = new int[buffersize]; |
| 272 |
0 |
bufcolumn = new int[buffersize]; |
| 273 |
|
} |
| 274 |
0 |
prevCharIsLF = prevCharIsCR = false; |
| 275 |
0 |
tokenBegin = inBuf = maxNextCharInd = 0; |
| 276 |
0 |
bufpos = -1; |
| 277 |
0 |
} |
| 278 |
|
|
| 279 |
|
public SimpleCharStream(java.io.InputStream dstream, int startline, |
| 280 |
|
int startcolumn, class="keyword">int buffersize) |
| 281 |
|
{ |
| 282 |
0 |
this(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096); |
| 283 |
0 |
} |
| 284 |
|
|
| 285 |
|
public SimpleCharStream(java.io.InputStream dstream, int startline, |
| 286 |
|
int startcolumn) |
| 287 |
|
{ |
| 288 |
0 |
this(dstream, startline, startcolumn, 4096); |
| 289 |
0 |
} |
| 290 |
|
|
| 291 |
|
public SimpleCharStream(java.io.InputStream dstream) |
| 292 |
|
{ |
| 293 |
0 |
this(dstream, 1, 1, 4096); |
| 294 |
0 |
} |
| 295 |
|
|
| 296 |
|
public String GetImage() |
| 297 |
|
{ |
| 298 |
1593 |
if (bufpos >= tokenBegin) |
| 299 |
1593 |
return new String(buffer, tokenBegin, bufpos - tokenBegin + 1); |
| 300 |
|
else |
| 301 |
0 |
return new String(buffer, tokenBegin, bufsize - tokenBegin) + |
| 302 |
|
new String(buffer, 0, bufpos + 1); |
| 303 |
|
} |
| 304 |
|
|
| 305 |
|
public void Done() |
| 306 |
|
{ |
| 307 |
0 |
buffer = null; |
| 308 |
0 |
bufline = null; |
| 309 |
0 |
bufcolumn = null; |
| 310 |
0 |
} |
| 311 |
|
|
| 312 |
|
} |