/**
   * Cluster the blocks following the font, style and size aspects
   *
   * <p>-> not used at this stage, but could be an interesting feature in the full text model in the
   * future
   *
   * @param b integer
   * @param doc a document
   */
  private static void addBlockToCluster(Integer b, Document doc) {
    // get block features
    Block block = doc.getBlocks().get(b);
    String font = block.getFont();
    boolean bold = block.getBold();
    boolean italic = block.getItalic();
    double fontSize = block.getFontSize();
    boolean found = false;

    if (font == null) {
      font = "unknown";
    }
    // System.out.println(font + " " + bold + " " + italic + " " + fontSize );

    if (doc.getClusters() == null) {
      doc.setClusters(new ArrayList<Cluster>());
    } else {
      for (Cluster cluster : doc.getClusters()) {
        String font2 = cluster.getFont();
        if (font2 == null) font2 = "unknown";
        if (font.equals(font2)
            && (bold == cluster.getBold())
                & (italic == cluster.getItalic())
                & (fontSize == cluster.getFontSize())) {
          cluster.addBlock2(b);
          found = true;
        }
      }
    }

    if (!found) {
      Cluster cluster = new Cluster();
      cluster.setFont(font);
      cluster.setBold(bold);
      cluster.setItalic(italic);
      cluster.setFontSize(fontSize);
      cluster.addBlock2(b);
      doc.getClusters().add(cluster);
    }
  }
Esempio n. 2
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  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()); }
     */

  }