| 1 | |
|
| 2 | |
|
| 3 | |
|
| 4 | |
|
| 5 | |
|
| 6 | |
|
| 7 | |
|
| 8 | |
|
| 9 | |
|
| 10 | |
|
| 11 | |
|
| 12 | |
|
| 13 | |
|
| 14 | |
|
| 15 | |
|
| 16 | |
|
| 17 | |
|
| 18 | |
|
| 19 | |
|
| 20 | |
|
| 21 | |
|
| 22 | |
|
| 23 | |
|
| 24 | |
|
| 25 | |
|
| 26 | |
|
| 27 | |
|
| 28 | |
package org.omegat.filters2.latex; |
| 29 | |
|
| 30 | |
import java.io.BufferedReader; |
| 31 | |
import java.io.BufferedWriter; |
| 32 | |
import java.io.IOException; |
| 33 | |
import java.io.Writer; |
| 34 | |
import java.util.Iterator; |
| 35 | |
import java.util.LinkedList; |
| 36 | |
import java.util.ListIterator; |
| 37 | |
import java.util.regex.Matcher; |
| 38 | |
import java.util.regex.Pattern; |
| 39 | |
|
| 40 | |
import org.omegat.filters2.AbstractFilter; |
| 41 | |
import org.omegat.filters2.Instance; |
| 42 | |
import org.omegat.util.OStrings; |
| 43 | |
|
| 44 | |
|
| 45 | |
|
| 46 | |
|
| 47 | |
|
| 48 | |
|
| 49 | |
|
| 50 | |
|
| 51 | |
|
| 52 | |
|
| 53 | 582348276 | public class LatexFilter extends AbstractFilter { |
| 54 | |
|
| 55 | |
public String getFileFormatName() { |
| 56 | 13064848 | return OStrings.getString("LATEXFILTER_FILTER_NAME"); |
| 57 | |
} |
| 58 | |
|
| 59 | |
public Instance[] getDefaultInstances() { |
| 60 | 569283428 | return new Instance[] { new Instance("*.tex"), new Instance("*.latex"), }; |
| 61 | |
} |
| 62 | |
|
| 63 | |
public boolean isSourceEncodingVariable() { |
| 64 | 0 | return true; |
| 65 | |
} |
| 66 | |
|
| 67 | |
public boolean isTargetEncodingVariable() { |
| 68 | 0 | return true; |
| 69 | |
} |
| 70 | |
|
| 71 | |
public void processFile(BufferedReader in, BufferedWriter out) throws IOException { |
| 72 | |
|
| 73 | 0 | in.mark(1); |
| 74 | 0 | int ch = in.read(); |
| 75 | 0 | if (ch != 0xFEFF) |
| 76 | 0 | in.reset(); |
| 77 | |
|
| 78 | 0 | init(); |
| 79 | |
|
| 80 | 0 | processLatexFile(in, out); |
| 81 | 0 | } |
| 82 | |
|
| 83 | |
private int findStringCategory(String c) { |
| 84 | 0 | if (c.equals("\\")) { |
| 85 | 0 | return 0; |
| 86 | 0 | } else if (c.equals("{")) { |
| 87 | 0 | return 1; |
| 88 | 0 | } else if (c.equals("}")) { |
| 89 | 0 | return 2; |
| 90 | 0 | } else if (c.equals("$")) { |
| 91 | 0 | return 3; |
| 92 | 0 | } else if (c.equals("&")) { |
| 93 | 0 | return 4; |
| 94 | 0 | } else if (c.equals("\n")) { |
| 95 | 0 | return 5; |
| 96 | 0 | } else if (c.equals("#")) { |
| 97 | 0 | return 6; |
| 98 | 0 | } else if (c.equals("^")) { |
| 99 | 0 | return 7; |
| 100 | 0 | } else if (c.equals("_")) { |
| 101 | 0 | return 8; |
| 102 | 0 | } else if (c.equals("\000")) { |
| 103 | 0 | return 9; |
| 104 | 0 | } else if (c.matches("[ \t]")) { |
| 105 | 0 | return 10; |
| 106 | 0 | } else if (c.matches("[a-zA-Z]")) { |
| 107 | 0 | return 11; |
| 108 | 0 | } else if (c.equals("~")) { |
| 109 | 0 | return 13; |
| 110 | 0 | } else if (c.equals("%")) { |
| 111 | 0 | return 14; |
| 112 | |
} |
| 113 | |
|
| 114 | 0 | return 12; |
| 115 | |
} |
| 116 | |
|
| 117 | |
|
| 118 | |
|
| 119 | |
|
| 120 | |
|
| 121 | |
|
| 122 | |
|
| 123 | |
|
| 124 | |
|
| 125 | |
|
| 126 | |
private void processLatexFile(BufferedReader in, Writer out) throws IOException { |
| 127 | 0 | StringBuffer par = new StringBuffer(); |
| 128 | |
String s; |
| 129 | |
|
| 130 | 0 | LinkedList<String> commands = new LinkedList<String>(); |
| 131 | |
|
| 132 | |
|
| 133 | |
|
| 134 | |
|
| 135 | |
|
| 136 | |
String state; |
| 137 | 0 | while ((s = in.readLine()) != null) { |
| 138 | 0 | String[] c = s.split(""); |
| 139 | 0 | state = "N"; |
| 140 | |
|
| 141 | 0 | int idx = 1; |
| 142 | 0 | while (idx < c.length) { |
| 143 | 0 | String cidx = c[idx]; |
| 144 | 0 | int cat = findStringCategory(cidx); |
| 145 | |
|
| 146 | 0 | if (cat == 0) { |
| 147 | |
|
| 148 | 0 | StringBuffer cmd = new StringBuffer(); |
| 149 | 0 | cmd.append(cidx); |
| 150 | 0 | idx++; |
| 151 | 0 | while (idx < c.length) { |
| 152 | 0 | String cmdc = c[idx]; |
| 153 | 0 | if (findStringCategory(cmdc) == 11) { |
| 154 | 0 | cmd.append(cmdc); |
| 155 | 0 | } else if (cmd.length() == 1) { |
| 156 | 0 | cmd.append(cmdc); |
| 157 | 0 | state = "M"; |
| 158 | 0 | break; |
| 159 | |
} else { |
| 160 | 0 | idx--; |
| 161 | |
|
| 162 | 0 | state = "M"; |
| 163 | 0 | break; |
| 164 | |
} |
| 165 | 0 | idx++; |
| 166 | 0 | } |
| 167 | |
|
| 168 | 0 | if (!commands.contains(cmd.toString())) |
| 169 | 0 | commands.add(cmd.toString()); |
| 170 | 0 | par.append(cmd); |
| 171 | 0 | } else if (cat == 4) { |
| 172 | |
|
| 173 | 0 | out.write(processParagraph(commands, par.toString())); |
| 174 | 0 | out.write("&"); |
| 175 | 0 | par.setLength(0); |
| 176 | |
|
| 177 | 0 | commands.clear(); |
| 178 | 0 | } else if (cat == 10) { |
| 179 | 0 | if (state.equals("M")) { |
| 180 | 0 | state = "S"; |
| 181 | 0 | par.append(cidx); |
| 182 | |
} |
| 183 | 0 | } else if (cat == 14) { |
| 184 | |
|
| 185 | 0 | StringBuffer comment = new StringBuffer(); |
| 186 | 0 | comment.append(cidx); |
| 187 | 0 | idx++; |
| 188 | 0 | while (idx < c.length) { |
| 189 | 0 | String commentc = c[idx]; |
| 190 | 0 | comment.append(commentc); |
| 191 | 0 | idx++; |
| 192 | 0 | } |
| 193 | |
|
| 194 | |
|
| 195 | 0 | } else { |
| 196 | 0 | state = "M"; |
| 197 | 0 | par.append(cidx); |
| 198 | |
} |
| 199 | |
|
| 200 | 0 | idx++; |
| 201 | 0 | } |
| 202 | |
|
| 203 | |
|
| 204 | 0 | if (state.equals("N")) { |
| 205 | |
|
| 206 | 0 | out.write(processParagraph(commands, par.toString())); |
| 207 | 0 | out.write("\n\n"); |
| 208 | 0 | par.setLength(0); |
| 209 | |
|
| 210 | 0 | commands.clear(); |
| 211 | 0 | } else if (state.equals("M")) { |
| 212 | 0 | par.append(" "); |
| 213 | |
} |
| 214 | 0 | } |
| 215 | |
|
| 216 | |
|
| 217 | 0 | if (par.length() > 0) |
| 218 | 0 | out.write(processParagraph(commands, par.toString())); |
| 219 | |
|
| 220 | 0 | } |
| 221 | |
|
| 222 | |
private String substituteUnicode(String par) { |
| 223 | 0 | par = par.replaceAll("\\\\\\\\", "<br0>"); |
| 224 | 0 | par = par.replaceAll("\\{?\\\\ss\\}?", "ß"); |
| 225 | 0 | par = par.replaceAll("\\{?\\\\glqq\\}?(\\{\\})?", "\u301f"); |
| 226 | 0 | par = par.replaceAll("\\{?\\\\grqq\\}?(\\{\\})?", "\u301d"); |
| 227 | 0 | par = par.replaceAll("\\{?\\\\glq\\}?(\\{\\})?", "\u201a"); |
| 228 | 0 | par = par.replaceAll("\\{?\\\\grq\\}?(\\{\\})?", "\u2018"); |
| 229 | 0 | par = par.replaceAll("\\\\%", "%"); |
| 230 | 0 | par = par.replaceAll("\\\\-", "\u00ad"); |
| 231 | 0 | par = par.replaceAll("\\\\,", "\u2009"); |
| 232 | 0 | par = par.replaceAll("~", "\u00a0"); |
| 233 | 0 | return par; |
| 234 | |
} |
| 235 | |
|
| 236 | |
private String resubstituteTex(String par) { |
| 237 | 0 | par = par.replaceAll("\u00a0", "~"); |
| 238 | 0 | par = par.replaceAll("\u2009", "\\\\,"); |
| 239 | 0 | par = par.replaceAll("\u00ad", "\\\\-"); |
| 240 | 0 | par = par.replaceAll("%", "\\\\%"); |
| 241 | 0 | par = par.replaceAll("<br0>", "\\\\\\\\"); |
| 242 | 0 | return par; |
| 243 | |
} |
| 244 | |
|
| 245 | 582348276 | private LinkedList<String> oneArgNoText = new LinkedList<String>(); |
| 246 | 582348276 | private LinkedList<String> oneArgInlineText = new LinkedList<String>(); |
| 247 | 582348276 | private LinkedList<String> oneArgParText = new LinkedList<String>(); |
| 248 | |
|
| 249 | |
private void init() { |
| 250 | 0 | oneArgNoText.add("\\begin"); |
| 251 | 0 | oneArgNoText.add("\\end"); |
| 252 | 0 | oneArgNoText.add("\\cite"); |
| 253 | 0 | oneArgNoText.add("\\label"); |
| 254 | 0 | oneArgNoText.add("\\ref"); |
| 255 | 0 | oneArgNoText.add("\\pageref"); |
| 256 | 0 | oneArgNoText.add("\\pagestyle"); |
| 257 | 0 | oneArgNoText.add("\\thispagestyle"); |
| 258 | 0 | oneArgNoText.add("\\vspace"); |
| 259 | 0 | oneArgNoText.add("\\hspace"); |
| 260 | 0 | oneArgNoText.add("\\vskip"); |
| 261 | 0 | oneArgNoText.add("\\hskip"); |
| 262 | 0 | oneArgNoText.add("\\put"); |
| 263 | 0 | oneArgNoText.add("\\includegraphics"); |
| 264 | 0 | oneArgNoText.add("\\documentclass"); |
| 265 | 0 | oneArgNoText.add("\\usepackage"); |
| 266 | |
|
| 267 | 0 | oneArgInlineText.add("\\emph"); |
| 268 | 0 | oneArgInlineText.add("\\textbf"); |
| 269 | 0 | oneArgInlineText.add("\\texttt"); |
| 270 | 0 | oneArgInlineText.add("\\textsf"); |
| 271 | 0 | oneArgInlineText.add("\\textit"); |
| 272 | 0 | oneArgInlineText.add("\\hbox"); |
| 273 | 0 | oneArgInlineText.add("\\mbox"); |
| 274 | 0 | oneArgInlineText.add("\\vbox"); |
| 275 | |
|
| 276 | 0 | oneArgParText.add("\\typeout"); |
| 277 | 0 | oneArgParText.add("\\footnote"); |
| 278 | 0 | oneArgParText.add("\\author"); |
| 279 | 0 | oneArgParText.add("\\index"); |
| 280 | 0 | oneArgParText.add("\\title"); |
| 281 | 0 | oneArgParText.add("\\Chapter"); |
| 282 | 0 | oneArgParText.add("\\chapter"); |
| 283 | 0 | oneArgParText.add("\\section"); |
| 284 | 0 | } |
| 285 | |
|
| 286 | |
private String replaceOneArgNoText(LinkedList<String[]> substituted, LinkedList<String> commands, |
| 287 | |
String par) { |
| 288 | 0 | int counter = 0; |
| 289 | |
|
| 290 | 0 | for (Iterator<String> it = commands.iterator(); it.hasNext();) { |
| 291 | 0 | String command = it.next(); |
| 292 | |
|
| 293 | 0 | StringBuffer sb = new StringBuffer(); |
| 294 | |
|
| 295 | 0 | if (oneArgNoText.contains(command)) { |
| 296 | 0 | String find = ("\\" + command + "\\*?" + "(" + "\\[" + "[^\\]]*" + "\\]" + |
| 297 | |
|
| 298 | |
|
| 299 | |
"|" + "\\(" + "[^\\)]*" + "\\)" + |
| 300 | |
")?\\s*" + "\\{" + "[^\\}]*+" + "\\}"); |
| 301 | |
|
| 302 | 0 | Pattern p = Pattern.compile(find); |
| 303 | 0 | Matcher m = p.matcher(par); |
| 304 | 0 | while (m.find()) { |
| 305 | 0 | String replace = "<n" + String.valueOf(counter) + ">"; |
| 306 | 0 | String[] subst = { reHarden(m.group(0)), reHarden(replace) }; |
| 307 | 0 | substituted.addFirst(subst); |
| 308 | 0 | m.appendReplacement(sb, replace); |
| 309 | 0 | counter++; |
| 310 | 0 | } |
| 311 | 0 | m.appendTail(sb); |
| 312 | |
|
| 313 | 0 | par = sb.toString(); |
| 314 | |
} |
| 315 | 0 | } |
| 316 | 0 | return par; |
| 317 | |
} |
| 318 | |
|
| 319 | |
private String replaceOneArgInlineText(LinkedList<String[]> substituted, LinkedList<String> commands, |
| 320 | |
String par) { |
| 321 | 0 | int counter = 0; |
| 322 | |
|
| 323 | 0 | for (Iterator<String> it = commands.iterator(); it.hasNext();) { |
| 324 | 0 | String command = it.next(); |
| 325 | |
|
| 326 | 0 | StringBuffer sb = new StringBuffer(); |
| 327 | |
|
| 328 | 0 | if (oneArgInlineText.contains(command)) { |
| 329 | 0 | String find = ("(" + "\\" + command + "\\s*" + "\\{" + ")" + "(" + "[^\\}]*+" + ")" + "\\}"); |
| 330 | |
|
| 331 | 0 | Pattern p = Pattern.compile(find); |
| 332 | 0 | Matcher m = p.matcher(par); |
| 333 | 0 | while (m.find()) { |
| 334 | 0 | String preReplace = "<i" + String.valueOf(counter) + ">"; |
| 335 | 0 | String postReplace = "</i" + String.valueOf(counter) + ">"; |
| 336 | |
|
| 337 | 0 | String[] s1 = { reHarden(m.group(1)), reHarden(preReplace) }; |
| 338 | 0 | substituted.addFirst(s1); |
| 339 | |
|
| 340 | 0 | String[] s2 = { reHarden("}"), reHarden(postReplace) }; |
| 341 | 0 | substituted.addFirst(s2); |
| 342 | |
|
| 343 | 0 | String replace = (preReplace + "$2" + postReplace); |
| 344 | 0 | m.appendReplacement(sb, replace); |
| 345 | 0 | counter++; |
| 346 | 0 | } |
| 347 | 0 | m.appendTail(sb); |
| 348 | |
|
| 349 | 0 | par = sb.toString(); |
| 350 | |
} |
| 351 | 0 | } |
| 352 | 0 | return par; |
| 353 | |
} |
| 354 | |
|
| 355 | |
private String replaceOneArgParText(LinkedList<String[]> substituted, LinkedList<String> commands, |
| 356 | |
String par) { |
| 357 | 0 | int counter = 0; |
| 358 | |
|
| 359 | 0 | for (Iterator<String> it = commands.iterator(); it.hasNext();) { |
| 360 | 0 | String command = it.next(); |
| 361 | |
|
| 362 | 0 | StringBuffer sb = new StringBuffer(); |
| 363 | |
|
| 364 | 0 | if (oneArgParText.contains(command)) { |
| 365 | 0 | String find = ("(" + "\\" + command + "\\*?\\s*" + ")" + "\\{" + "(" + "[^\\}]*+" + ")" + "\\}"); |
| 366 | |
|
| 367 | 0 | Pattern p = Pattern.compile(find); |
| 368 | 0 | Matcher m = p.matcher(par); |
| 369 | 0 | while (m.find()) { |
| 370 | 0 | String replace = "<p" + String.valueOf(counter) + ">"; |
| 371 | 0 | String content = ""; |
| 372 | 0 | if (m.group(2) != null) |
| 373 | 0 | content = processParagraph(commands, m.group(2)); |
| 374 | |
|
| 375 | 0 | String[] subst = { reHarden(m.group(1) + "{" + content + "}"), reHarden(replace) }; |
| 376 | |
|
| 377 | 0 | substituted.addFirst(subst); |
| 378 | 0 | m.appendReplacement(sb, replace); |
| 379 | 0 | counter++; |
| 380 | 0 | } |
| 381 | 0 | m.appendTail(sb); |
| 382 | |
|
| 383 | 0 | par = sb.toString(); |
| 384 | |
} |
| 385 | 0 | } |
| 386 | 0 | return par; |
| 387 | |
} |
| 388 | |
|
| 389 | |
private String replaceUnknownCommand(LinkedList<String[]> substituted, LinkedList<String> commands, |
| 390 | |
String par) { |
| 391 | 0 | int counter = 0; |
| 392 | |
|
| 393 | 0 | for (Iterator<String> it = commands.iterator(); it.hasNext();) { |
| 394 | 0 | String command = it.next(); |
| 395 | |
|
| 396 | 0 | if (command.equals("\\\\") || command.equals("\\{") || command.equals("\\[")) |
| 397 | |
|
| 398 | 0 | command = "\\" + command; |
| 399 | |
|
| 400 | 0 | StringBuffer sb = new StringBuffer(); |
| 401 | 0 | String find = "\\" + command; |
| 402 | |
|
| 403 | 0 | Pattern p = Pattern.compile(find); |
| 404 | 0 | Matcher m = p.matcher(par); |
| 405 | 0 | while (m.find()) { |
| 406 | 0 | String replace = "<u" + String.valueOf(counter) + ">"; |
| 407 | 0 | String[] subst = { reHarden(m.group(0)), reHarden(replace) }; |
| 408 | 0 | substituted.addFirst(subst); |
| 409 | 0 | m.appendReplacement(sb, replace); |
| 410 | 0 | counter++; |
| 411 | 0 | } |
| 412 | 0 | m.appendTail(sb); |
| 413 | |
|
| 414 | 0 | par = sb.toString(); |
| 415 | 0 | } |
| 416 | 0 | return par; |
| 417 | |
} |
| 418 | |
|
| 419 | |
private String reHarden(String re) { |
| 420 | 0 | re = re.replaceAll("\\\\", "\\\\\\\\"); |
| 421 | 0 | re = re.replaceAll("\\[", "\\\\["); |
| 422 | 0 | re = re.replaceAll("\\^", "\\\\^"); |
| 423 | 0 | re = re.replaceAll("\\$", "\\\\\\$"); |
| 424 | 0 | re = re.replaceAll("\\{", "\\\\{"); |
| 425 | 0 | return re; |
| 426 | |
} |
| 427 | |
|
| 428 | |
private String processParagraph(LinkedList<String> commands, String par) { |
| 429 | 0 | LinkedList<String[]> substituted = new LinkedList<String[]>(); |
| 430 | |
|
| 431 | 0 | par = substituteUnicode(par); |
| 432 | |
|
| 433 | 0 | par = replaceOneArgNoText(substituted, commands, par); |
| 434 | 0 | par = replaceOneArgInlineText(substituted, commands, par); |
| 435 | 0 | par = replaceOneArgParText(substituted, commands, par); |
| 436 | 0 | par = replaceUnknownCommand(substituted, commands, par); |
| 437 | |
|
| 438 | 0 | String find = ("^((\\s*</?[nipu]\\d+>\\s*)*)" + "(.*?)" + "((\\s*</?[nipu]\\d+>\\s*)*)$"); |
| 439 | 0 | Pattern p = Pattern.compile(find); |
| 440 | 0 | Matcher m = p.matcher(par); |
| 441 | 0 | if (m.find()) { |
| 442 | 0 | par = ""; |
| 443 | 0 | if (m.group(1) != null) |
| 444 | 0 | par += m.group(1); |
| 445 | 0 | if (m.group(3) != null) |
| 446 | 0 | par += processEntry(m.group(3)); |
| 447 | 0 | if (m.group(4) != null) |
| 448 | 0 | par += m.group(4); |
| 449 | |
} |
| 450 | |
|
| 451 | 0 | par = resubstituteTex(par); |
| 452 | |
|
| 453 | 0 | ListIterator<String[]> it = substituted.listIterator(); |
| 454 | 0 | while (it.hasNext()) { |
| 455 | 0 | String[] subst = it.next(); |
| 456 | 0 | par = par.replaceAll(subst[1], subst[0]); |
| 457 | 0 | } |
| 458 | |
|
| 459 | 0 | return par; |
| 460 | |
} |
| 461 | |
|
| 462 | |
} |