public static Document generalResultSegmentation(
Document doc, String labeledResult, List<LayoutToken> documentTokens) {
List<Pair<String, String>> labeledTokens = GenericTaggerUtils.getTokensAndLabels(labeledResult);
SortedSetMultimap<String, DocumentPiece> labeledBlocks = TreeMultimap.create();
doc.setLabeledBlocks(labeledBlocks);
/*try {
FileUtils.writeStringToFile(new File("/tmp/x1.txt"), labeledResult);
FileUtils.writeStringToFile(new File("/tmp/x2.txt"), documentTokens.toString());
}
catch(Exception e) {
e.printStackTrace();
}*/
List<Block> docBlocks = doc.getBlocks();
int indexLine = 0;
int blockIndex = 0;
int p = 0; // position in the labeled result
int currentLineEndPos = 0; // position in the global doc. tokenization of the last
// token of the current line
int currentLineStartPos = 0; // position in the global doc.
// tokenization of the first token of the current line
String line = null;
DocumentPointer pointerA = DocumentPointer.START_DOCUMENT_POINTER;
DocumentPointer currentPointer = null;
DocumentPointer lastPointer = null;
String curLabel;
String curPlainLabel = null;
String lastPlainLabel = null;
int lastTokenInd = -1;
for (int i = docBlocks.size() - 1; i >= 0; i--) {
int endToken = docBlocks.get(i).getEndToken();
if (endToken != -1) {
lastTokenInd = endToken;
break;
}
}
// we do this concatenation trick so that we don't have to process stuff after the main loop
// no copying of lists happens because of this, so it's ok to concatenate
String ignoredLabel = "@IGNORED_LABEL@";
for (Pair<String, String> labeledTokenPair :
Iterables.concat(
labeledTokens,
Collections.singleton(new Pair<String, String>("IgnoredToken", ignoredLabel)))) {
if (labeledTokenPair == null) {
p++;
continue;
}
// as we process the document segmentation line by line, we don't use the usual
// tokenization to rebuild the text flow, but we get each line again from the
// text stored in the document blocks (similarly as when generating the features)
line = null;
while ((line == null) && (blockIndex < docBlocks.size())) {
Block block = docBlocks.get(blockIndex);
List<LayoutToken> tokens = block.getTokens();
String localText = block.getText();
if ((tokens == null) || (localText == null) || (localText.trim().length() == 0)) {
blockIndex++;
indexLine = 0;
if (blockIndex < docBlocks.size()) {
block = docBlocks.get(blockIndex);
currentLineStartPos = block.getStartToken();
}
continue;
}
String[] lines = localText.split("[\\n\\r]");
if ((lines.length == 0) || (indexLine >= lines.length)) {
blockIndex++;
indexLine = 0;
if (blockIndex < docBlocks.size()) {
block = docBlocks.get(blockIndex);
currentLineStartPos = block.getStartToken();
}
continue;
} else {
line = lines[indexLine];
indexLine++;
if ((line.trim().length() == 0) || (TextUtilities.filterLine(line))) {
line = null;
continue;
}
if (currentLineStartPos > lastTokenInd) continue;
// adjust the start token position in documentTokens to this non trivial line
// first skip possible space characters and tabs at the beginning of the line
while ((documentTokens.get(currentLineStartPos).t().equals(" ")
|| documentTokens.get(currentLineStartPos).t().equals("\t"))
&& (currentLineStartPos != lastTokenInd)) {
currentLineStartPos++;
}
if (!labeledTokenPair.a.startsWith(documentTokens.get(currentLineStartPos).getText())) {
while (currentLineStartPos < block.getEndToken()) {
if (documentTokens.get(currentLineStartPos).t().equals("\n")
|| documentTokens.get(currentLineStartPos).t().equals("\r")) {
// move to the start of the next line, but ignore space characters and tabs
currentLineStartPos++;
while ((documentTokens.get(currentLineStartPos).t().equals(" ")
|| documentTokens.get(currentLineStartPos).t().equals("\t"))
&& (currentLineStartPos != lastTokenInd)) {
currentLineStartPos++;
}
if ((currentLineStartPos != lastTokenInd)
&& labeledTokenPair.a.startsWith(
documentTokens.get(currentLineStartPos).getText())) {
break;
}
}
currentLineStartPos++;
}
}
// what is then the position of the last token of this line?
currentLineEndPos = currentLineStartPos;
while (currentLineEndPos < block.getEndToken()) {
if (documentTokens.get(currentLineEndPos).t().equals("\n")
|| documentTokens.get(currentLineEndPos).t().equals("\r")) {
currentLineEndPos--;
break;
}
currentLineEndPos++;
}
}
}
curLabel = labeledTokenPair.b;
curPlainLabel = GenericTaggerUtils.getPlainLabel(curLabel);
/*System.out.println("-------------------------------");
System.out.println("block: " + blockIndex);
System.out.println("line: " + line);
System.out.println("token: " + labeledTokenPair.a);
System.out.println("curPlainLabel: " + curPlainLabel);
System.out.println("lastPlainLabel: " + lastPlainLabel);
if ((currentLineStartPos < lastTokenInd) && (currentLineStartPos != -1))
System.out.println("currentLineStartPos: " + currentLineStartPos +
" (" + documentTokens.get(currentLineStartPos) + ")");
if ((currentLineEndPos < lastTokenInd) && (currentLineEndPos != -1))
System.out.println("currentLineEndPos: " + currentLineEndPos +
" (" + documentTokens.get(currentLineEndPos) + ")");*/
if (blockIndex == docBlocks.size()) {
break;
}
currentPointer = new DocumentPointer(doc, blockIndex, currentLineEndPos);
// either a new entity starts or a new beginning of the same type of entity
if ((!curPlainLabel.equals(lastPlainLabel)) && (lastPlainLabel != null)) {
if ((pointerA.getTokenDocPos() <= lastPointer.getTokenDocPos())
&& (pointerA.getTokenDocPos() != -1)) {
labeledBlocks.put(lastPlainLabel, new DocumentPiece(pointerA, lastPointer));
}
pointerA = new DocumentPointer(doc, blockIndex, currentLineStartPos);
// System.out.println("add segment for: " + lastPlainLabel + ", until " +
// (currentLineStartPos-2));
}
// updating stuff for next iteration
lastPlainLabel = curPlainLabel;
lastPointer = currentPointer;
currentLineStartPos = currentLineEndPos + 2; // one shift for the EOL, one for the next line
p++;
}
if (blockIndex == docBlocks.size()) {
// the last labelled piece has still to be added
if ((!curPlainLabel.equals(lastPlainLabel)) && (lastPlainLabel != null)) {
if ((pointerA.getTokenDocPos() <= lastPointer.getTokenDocPos())
&& (pointerA.getTokenDocPos() != -1)) {
labeledBlocks.put(lastPlainLabel, new DocumentPiece(pointerA, lastPointer));
// System.out.println("add segment for: " + lastPlainLabel + ", until " +
// (currentLineStartPos-2));
}
}
}
return doc;
}
public void endElement(java.lang.String uri, java.lang.String localName, java.lang.String qName)
throws SAXException {
// if (!qName.equals("TOKEN") && !qName.equals("BLOCK") &&
// !qName.equals("TEXT"))
// System.out.println(qName);
if (qName.equals("TEXT")) {
blabla.append("\n");
LayoutToken token = new LayoutToken();
token.setText("\n");
block.addToken(token);
accumulator.setLength(0);
tokenizations.add("\n");
} else if (qName.equals("METADATA")) {
accumulator.setLength(0);
} else if (qName.equals("TOKEN")) {
String tok0 = TextUtilities.clean(getText());
if (block.getStartToken() == -1) {
block.setStartToken(tokenizations.size());
}
if (tok0.length() > 0) {
StringTokenizer st = new StringTokenizer(tok0, TextUtilities.fullPunctuations, true);
boolean diaresis = false;
boolean accent = false;
boolean keepLast = false;
while (st.hasMoreTokens()) {
diaresis = false;
accent = false;
keepLast = false;
String tok = st.nextToken();
if (tok.length() > 0) {
LayoutToken token = new LayoutToken();
if ((previousToken != null)
&& (tok != null)
&& (previousToken.length() > 0)
&& (tok.length() > 0)
&& blabla.length() > 0) {
Character leftChar = previousTok.getText().charAt(previousTok.getText().length() - 1);
Character rightChar = tok.charAt(0);
ModifierClass leftClass = classifyChar(leftChar);
ModifierClass rightClass = classifyChar(rightChar);
ModifierClass modifierClass = ModifierClass.NOT_A_MODIFIER;
if (leftClass != ModifierClass.NOT_A_MODIFIER
|| rightClass != ModifierClass.NOT_A_MODIFIER) {
Character baseChar = null;
Character modifierChar = null;
if (leftClass != ModifierClass.NOT_A_MODIFIER) {
if (rightClass != ModifierClass.NOT_A_MODIFIER) {
// assert false;
// keeping characters, but setting class
// to not a modifier
baseChar = leftChar;
modifierChar = rightChar;
modifierClass = ModifierClass.NOT_A_MODIFIER;
} else {
baseChar = rightChar;
modifierChar = leftChar;
modifierClass = leftClass;
}
} else {
baseChar = leftChar;
modifierChar = rightChar;
modifierClass = rightClass;
}
String updatedChar = modifyCharacter(baseChar, modifierChar);
tokenizations.remove(tokenizations.size() - 1);
if (tokenizations.size() > 0) {
tokenizations.remove(tokenizations.size() - 1);
}
blabla.deleteCharAt(blabla.length() - 1);
if (blabla.length() > 0) {
blabla.deleteCharAt(blabla.length() - 1);
}
removeLastCharacterIfPresent(previousTok);
if (updatedChar != null) {
blabla.append(updatedChar);
previousTok.setText(previousTok.getText() + updatedChar);
}
blabla.append(tok.substring(1, tok.length()));
previousTok.setText(previousTok.getText() + tok.substring(1, tok.length()));
tokenizations.add(previousTok.getText());
diaresis =
(modifierClass == ModifierClass.DIAERESIS
|| modifierClass == ModifierClass.NORDIC_RING
|| modifierClass == ModifierClass.CZECH_CARON
|| modifierClass == ModifierClass.TILDE
|| modifierClass == ModifierClass.CEDILLA);
accent =
(modifierClass == ModifierClass.ACUTE_ACCENT
|| modifierClass == ModifierClass.CIRCUMFLEX
|| modifierClass == ModifierClass.GRAVE_ACCENT);
if (rightClass != ModifierClass.NOT_A_MODIFIER) {
tok = ""; // resetting current token as it
// is a single-item
}
}
}
if (tok != null) {
// actually in certain cases, the extracted string under token can be a chunk of text
// with separators that need to be preserved
// tok = tok.replace(" ", "");
}
if ((!diaresis) && (!accent)) {
// blabla.append(" ");
blabla.append(tok);
token.setText(tok);
tokenizations.add(tok);
} else {
tok = "";
keepLast = true;
}
/*
* StringTokenizer st0 = new StringTokenizer(tok0,
* TextUtilities.fullPunctuations, true);
* while(st0.hasMoreTokens()) { String tok =
* st0.nextToken(); tokenizations.add(tok); }
* tokenizations.add(" ");
*/
/*
* boolean punct1 = false; boolean punct2 = false;
* boolean punct3 = false; String content = null; int i
* = 0; for(; i<TextUtilities.punctuations.length();
* i++) { if (tok.length() > 0) { if
* (tok.charAt(tok.length()-1) ==
* TextUtilities.punctuations.charAt(i)) { punct1 =
* true; content = tok.substring(0, tok.length()-1); if
* (tok.length() > 1) { int j = 0; for(;
* j<TextUtilities.punctuations.length(); j++) { if
* (tok.charAt(tok.length()-2) ==
* TextUtilities.punctuations.charAt(j)) { punct3 =
* true; content = tok.substring(0, tok.length()-2); } }
* } break; } } } if (tok.length() > 0) { if (
* (tok.startsWith("(")) && (tok.length() > 1) ) { if
* ((punct3) && (tok.length() > 2)) content =
* tok.substring(1, tok.length()-2); else if (punct1)
* content = tok.substring(1, tok.length()-1); else
* content = tok.substring(1, tok.length()); punct2 =
* true; token.setText("("); } else if (
* (tok.startsWith("[")) && (tok.length() > 1) ) { if
* ((punct3) && (tok.length() > 2)) content =
* tok.substring(1, tok.length()-2); else if (punct1)
* content = tok.substring(1, tok.length()-1); else
* content = tok.substring(1, tok.length()); punct2 =
* true; token.setText("["); } else if (
* (tok.startsWith("\"")) && (tok.length() > 1) ) { if
* ((punct3) && (tok.length() > 2)) content =
* tok.substring(1, tok.length()-2); else if (punct1)
* content = tok.substring(1, tok.length()-1); else
* content = tok.substring(1, tok.length()); punct2 =
* true; token.setText("\""); } }
*/
if (currentRotation) currentFontSize = currentFontSize / 2;
/*
* if (punct2) { if (currentFont != null)
* token.setFont(currentFont.toLowerCase()); else
* token.setFont("default");
* token.setItalic(currentItalic);
* token.setBold(currentBold);
* token.setRotation(currentRotation);
* token.setColorFont(colorFont); token.setX(currentX);
* token.setY(currentY); token.setWidth(currentWidth);
* token.setHeight(currentHeight);
* token.setFontSize(currentFontSize);
* block.addToken(token);
*
* token = new LayoutToken(); token.setText(content); }
* if (punct1) { token.setText(content); if (currentFont
* != null) token.setFont(currentFont.toLowerCase());
* else token.setFont("default");
* token.setItalic(currentItalic);
* token.setBold(currentBold);
* token.setRotation(currentRotation);
* token.setColorFont(colorFont); token.setX(currentX);
* token.setY(currentY); token.setWidth(currentWidth);
* token.setHeight(currentHeight);
* token.setFontSize(currentFontSize);
* block.addToken(token);
*
* if (punct3) { token = new LayoutToken();
* token.setText(""+tok.charAt(tok.length()-2)); if
* (currentFont != null)
* token.setFont(currentFont.toLowerCase()); else
* token.setFont("default");
* token.setItalic(currentItalic);
* token.setBold(currentBold);
* token.setRotation(currentRotation);
* token.setColorFont(colorFont); token.setX(currentX);
* token.setY(currentY); token.setWidth(currentWidth);
* token.setHeight(currentHeight);
* token.setFontSize(currentFontSize);
* block.addToken(token); }
*
* token = new LayoutToken();
* token.setText(""+tok.charAt(tok.length()-1)); }
*/
if (currentFont != null) token.setFont(currentFont.toLowerCase());
else token.setFont("default");
token.setItalic(currentItalic);
token.setBold(currentBold);
token.setRotation(currentRotation);
token.setColorFont(colorFont);
token.setX(currentX);
token.setY(currentY);
token.setWidth(currentWidth);
token.setHeight(currentHeight);
token.setFontSize(currentFontSize);
if (!diaresis && !accent) {
block.addToken(token);
}
if (block.getFont() == null) {
if (currentFont != null) block.setFont(currentFont.toLowerCase());
else token.setFont("default");
}
if (nbTokens == 0) {
block.setItalic(currentItalic);
block.setBold(currentBold);
}
if (block.getColorFont() == null) block.setColorFont(colorFont);
if (block.getX() == 0.0) block.setX(currentX);
if (block.getY() == 0.0) block.setY(currentY);
if (block.getWidth() == 0.0) block.setWidth(currentWidth);
if (block.getHeight() == 0.0) block.setHeight(currentHeight);
if (block.getFontSize() == 0.0) block.setFontSize(currentFontSize);
if (!diaresis && !accent) {
previousToken = tok;
previousTok = token;
} else {
previousToken = previousTok.getText();
}
nbTokens++;
accumulator.setLength(0);
}
}
if (tokenizations.size() > 0) {
String justBefore = tokenizations.get(tokenizations.size() - 1);
if (!justBefore.endsWith("-")) {
tokenizations.add(" ");
blabla.append(" ");
}
}
}
block.setEndToken(tokenizations.size());
} else if (qName.equals("PAGE")) {
// page marker are usefull to detect headers (same first line(s)
// appearing on each page)
if (block != null) {
blabla.append("\n");
tokenizations.add("\n");
block.setText(blabla.toString());
block.setNbTokens(nbTokens);
doc.addBlock(block);
}
Block block0 = new Block();
block0.setText("@PAGE\n");
block0.setNbTokens(0);
block0.setPage(currentPage);
doc.addBlock(block0);
block = new Block();
block.setPage(currentPage);
blabla = new StringBuffer();
nbTokens = 0;
// blabla.append("\n@block\n");
tokenizations.add("\n");
} else if (qName.equals("IMAGE")) {
if (block != null) {
blabla.append("\n");
block.setText(blabla.toString());
block.setNbTokens(nbTokens);
doc.addBlock(block);
}
block = new Block();
block.setPage(currentPage);
blabla = new StringBuffer();
if (images.size() > 0) {
blabla.append("@IMAGE " + images.get(images.size() - 1) + "\n");
}
block.setText(blabla.toString());
block.setNbTokens(nbTokens);
if (block.getX() == 0.0) block.setX(currentX);
if (block.getY() == 0.0) block.setY(currentY);
if (block.getWidth() == 0.0) block.setWidth(currentWidth);
if (block.getHeight() == 0.0) block.setHeight(currentHeight);
doc.addBlock(block);
blabla = new StringBuffer();
nbTokens = 0;
block = new Block();
block.setPage(currentPage);
}
/*
* else if (qName.equals("VECTORIALIMAGES")) { if (block != null) {
* blabla.append("\n"); block.setText(blabla.toString());
* block.setNbTokens(nbTokens); doc.addBlock(block); } block = new
* Block(); block.setPage(currentPage); blabla = new StringBuffer();
* blabla.append("@IMAGE " + "vectorial \n");
* block.setText(blabla.toString()); block.setNbTokens(nbTokens); if
* (block.getX() == 0.0) block.setX(currentX); if (block.getY() == 0.0)
* block.setY(currentY); if (block.getWidth() == 0.0)
* block.setWidth(currentWidth); if (block.getHeight() == 0.0)
* block.setHeight(currentHeight); doc.addBlock(block); blabla = new
* StringBuffer(); nbTokens = 0; block = new Block();
* block.setPage(currentPage); }
*/
else if (qName.equals("BLOCK")) {
blabla.append("\n");
tokenizations.add("\n");
block.setText(blabla.toString());
block.setNbTokens(nbTokens);
block.setWidth(currentX - block.getX() + currentWidth);
block.setHeight(currentY - block.getY() + currentHeight);
doc.addBlock(block);
// blabla = new StringBuffer();
nbTokens = 0;
block = null;
} else if (qName.equals("xi:include")) {
if (block != null) {
blabla.append("\n");
block.setText(blabla.toString());
block.setNbTokens(nbTokens);
doc.addBlock(block);
}
block = new Block();
block.setPage(currentPage);
blabla = new StringBuffer();
blabla.append("@IMAGE " + images.get(images.size() - 1) + "\n");
block.setText(blabla.toString());
block.setNbTokens(nbTokens);
doc.addBlock(block);
blabla = new StringBuffer();
nbTokens = 0;
block = new Block();
block.setPage(currentPage);
}
/*
* else if (qName.equals("DOCUMENT")) {
* System.out.println(blabla.toString()); }
*/
}