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| package org.w3c.tidy; |
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| import java.io.IOException; |
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| import java.io.InputStream; |
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| import java.io.InputStreamReader; |
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| import java.io.Reader; |
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| import java.io.UnsupportedEncodingException; |
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| public class StreamInJavaImpl implements StreamIn |
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| { |
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| private static final int CHARBUF_SIZE = 5; |
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| private int[] charbuf = new int[CHARBUF_SIZE]; |
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| private int bufpos; |
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| private Reader reader; |
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| private boolean endOfStream; |
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| private boolean pushed; |
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| private int curcol; |
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| private int lastcol; |
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| private int curline; |
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| private int tabsize; |
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| private int tabs; |
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130 |
238
| protected StreamInJavaImpl(InputStream stream, String encoding, int tabsize) throws UnsupportedEncodingException
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| { |
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238
| reader = new InputStreamReader(stream, encoding);
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133 |
238
| this.pushed = false;
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134 |
238
| this.tabsize = tabsize;
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135 |
238
| this.curline = 1;
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238
| this.curcol = 1;
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238
| this.endOfStream = false;
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| } |
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146 |
0
| protected StreamInJavaImpl(Reader reader, int tabsize)
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| { |
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148 |
0
| this.reader = reader;
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149 |
0
| this.pushed = false;
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150 |
0
| this.tabsize = tabsize;
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151 |
0
| this.curline = 1;
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152 |
0
| this.curcol = 1;
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0
| this.endOfStream = false;
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| } |
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156 |
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159 |
350839
| public int readCharFromStream()
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| { |
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350839
| int c;
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162 |
350839
| try
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| { |
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164 |
350839
| c = reader.read();
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165 |
350839
| if (c < 0)
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| { |
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280
| endOfStream = true;
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| } |
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| } |
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| catch (IOException e) |
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| { |
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0
| endOfStream = true;
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175 |
0
| return END_OF_STREAM;
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| } |
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178 |
350839
| return c;
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| } |
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184 |
368247
| public int readChar()
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| { |
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186 |
368247
| int c;
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187 |
| |
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188 |
368247
| if (this.pushed)
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189 |
| { |
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190 |
25261
| c = this.charbuf[--(this.bufpos)];
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191 |
25261
| if ((this.bufpos) == 0)
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192 |
| { |
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193 |
25254
| this.pushed = false;
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194 |
| } |
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195 |
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196 |
25261
| if (c == '\n')
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197 |
| { |
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198 |
2
| this.curcol = 1;
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199 |
2
| this.curline++;
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200 |
2
| return c;
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201 |
| } |
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202 |
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203 |
25259
| this.curcol++;
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204 |
25259
| return c;
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205 |
| } |
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206 |
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207 |
342986
| this.lastcol = this.curcol;
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208 |
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209 |
342986
| if (this.tabs > 0)
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210 |
| { |
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211 |
1799
| this.curcol++;
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212 |
1799
| this.tabs--;
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213 |
1799
| return ' ';
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214 |
| } |
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215 |
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216 |
341187
| c = readCharFromStream();
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217 |
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218 |
341187
| if (c < 0)
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219 |
| { |
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220 |
279
| endOfStream = true;
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221 |
279
| return END_OF_STREAM;
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222 |
| } |
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223 |
| |
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224 |
340908
| if (c == '\n')
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225 |
| { |
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226 |
7
| this.curcol = 1;
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227 |
7
| this.curline++;
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228 |
7
| return c;
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229 |
| } |
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230 |
340901
| else if (c == '\r')
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231 |
| { |
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232 |
9652
| c = readCharFromStream();
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233 |
9652
| if (c != '\n')
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234 |
| { |
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235 |
17
| if (c != END_OF_STREAM)
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236 |
| { |
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237 |
16
| ungetChar(c);
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238 |
| } |
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239 |
17
| c = '\n';
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240 |
| } |
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241 |
9652
| this.curcol = 1;
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242 |
9652
| this.curline++;
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243 |
9652
| return c;
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244 |
| } |
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245 |
| |
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246 |
331249
| if (c == '\t')
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247 |
| { |
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248 |
258
| this.tabs = this.tabsize - ((this.curcol - 1) % this.tabsize) - 1;
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249 |
258
| this.curcol++;
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250 |
258
| c = ' ';
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251 |
258
| return c;
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252 |
| } |
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253 |
| |
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254 |
330991
| this.curcol++;
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255 |
| |
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256 |
330991
| return c;
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257 |
| } |
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258 |
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259 |
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260 |
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261 |
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262 |
25261
| public void ungetChar(int c)
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263 |
| { |
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264 |
25261
| this.pushed = true;
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265 |
25261
| if (this.bufpos >= CHARBUF_SIZE)
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266 |
| { |
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267 |
| |
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268 |
0
| System.arraycopy(this.charbuf, 0, this.charbuf, 1, CHARBUF_SIZE - 1);
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269 |
0
| this.bufpos--;
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270 |
| } |
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271 |
25261
| this.charbuf[(this.bufpos)++] = c;
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272 |
| |
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273 |
25261
| if (c == '\n')
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274 |
| { |
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275 |
2
| --this.curline;
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276 |
| } |
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277 |
| |
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278 |
25261
| this.curcol = this.lastcol;
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279 |
| } |
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280 |
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281 |
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282 |
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283 |
| |
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284 |
7927
| public boolean isEndOfStream()
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285 |
| { |
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286 |
7927
| return endOfStream;
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287 |
| } |
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288 |
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289 |
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290 |
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291 |
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292 |
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293 |
47385
| public int getCurcol()
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294 |
| { |
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295 |
47385
| return this.curcol;
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296 |
| } |
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297 |
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298 |
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299 |
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300 |
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301 |
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302 |
46172
| public int getCurline()
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303 |
| { |
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304 |
46172
| return this.curline;
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305 |
| } |
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306 |
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307 |
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308 |
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309 |
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310 |
238
| public void setLexer(Lexer lexer)
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311 |
| { |
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312 |
| |
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313 |
| } |
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314 |
| |
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315 |
| } |