/**
   * @return int
   * @param node org.eclipse.wst.css.core.model.interfaces.ICSSNode
   * @param insertPos int
   */
  public int getLengthToReformatAfter(ICSSNode node, int insertPos) {
    if (node == null) return 0;
    IndexedRegion nnode = (IndexedRegion) node;
    if (insertPos < 0 || !nnode.contains(insertPos)) return 0;

    IStructuredDocumentRegion flatNode =
        node.getOwnerDocument()
            .getModel()
            .getStructuredDocument()
            .getRegionAtCharacterOffset(insertPos);
    if (flatNode == null) return 0;
    ITextRegion region = flatNode.getRegionAtCharacterOffset(insertPos);
    if (region == null) return 0;
    RegionIterator it = new RegionIterator(flatNode, region);
    boolean found = false;
    while (it.hasNext()) {
      region = it.next();
      // if (region.getType() != CSSRegionContexts.CSS_S &&
      // region.getType() != CSSRegionContexts.CSS_DELIMITER &&
      // region.getType() !=
      // CSSRegionContexts.CSS_DECLARATION_DELIMITER) {
      if (region.getType() != CSSRegionContexts.CSS_S) {
        found = true;
        break;
      }
    }
    int pos =
        (found
                ? it.getStructuredDocumentRegion().getStartOffset(region)
                : it.getStructuredDocumentRegion().getTextEndOffset(region))
            - insertPos;
    return (pos >= 0) ? pos : 0;
  }
  private void checkSemiColon() {
    fAppendSemiColon = false;

    ITextRegion targetRegion = fContext.getTargetRegion();
    if (targetRegion != null
        && targetRegion.getType() != CSSRegionContexts.CSS_DECLARATION_DELIMITER) {
      // find trailing ":" or ";"
      // if ":" before ";" is found, add ";"
      RegionIterator iterator = fContext.getRegionIterator();
      IStructuredDocumentRegion container = iterator.getStructuredDocumentRegion();
      while (iterator.hasNext()) {
        ITextRegion region = iterator.next();
        if (iterator.getStructuredDocumentRegion() != container) {
          break;
        }
        if (region.getType() == CSSRegionContexts.CSS_DECLARATION_SEPARATOR) {
          fAppendSemiColon = true;
          break;
        }
      }
      if (!fAppendSemiColon) {
        // second chance:
        // leading IStructuredDocumentRegion is not ";"
        IStructuredDocumentRegion nextStructuredDocumentRegion =
            CSSUtil.findNextSignificantNode(container);
        if (CSSUtil.getStructuredDocumentRegionType(nextStructuredDocumentRegion)
            != CSSRegionContexts.CSS_DECLARATION_DELIMITER) {
          fAppendSemiColon = true;
        }
      }
    }
  }
  private void addSemiColon(List candidates) {
    ICSSNode targetNode = fContext.getTargetNode();
    if (targetNode instanceof ICSSStyleDeclItem) {
      ICSSNode firstChild = targetNode.getFirstChild();
      if (firstChild == null) {
        return;
      }
      if (firstChild instanceof IndexedRegion) {
        int startOffset = ((IndexedRegion) firstChild).getStartOffset();
        if (fContext.getCursorPos() <= startOffset) {
          return;
        }
      }
    }

    boolean bAddCloser = false;

    ITextRegion targetRegion = fContext.getTargetRegion();
    if (targetRegion != null
        && targetRegion.getType() != CSSRegionContexts.CSS_DECLARATION_DELIMITER) {
      // find trailing ":" or ";"
      // if ":" before ";" is found, add ";"
      RegionIterator iterator = fContext.getRegionIterator();
      IStructuredDocumentRegion container = iterator.getStructuredDocumentRegion();
      while (iterator.hasNext()) {
        ITextRegion region = iterator.next();
        if (iterator.getStructuredDocumentRegion() != container) {
          break;
        }
        if (region.getType() == CSSRegionContexts.CSS_DECLARATION_SEPARATOR) {
          bAddCloser = true;
          break;
        }
      }
      if (!bAddCloser) {
        // second chance:
        // leading IStructuredDocumentRegion is not ";"
        IStructuredDocumentRegion nextStructuredDocumentRegion =
            CSSUtil.findNextSignificantNode(container);
        if (CSSUtil.getStructuredDocumentRegionType(nextStructuredDocumentRegion)
            != CSSRegionContexts.CSS_DECLARATION_DELIMITER) {
          bAddCloser = true;
        }
      }
    }

    if (bAddCloser) {
      CSSCACandidate item = new CSSCACandidate();
      String text = fContext.getTextToReplace() + ";"; // $NON-NLS-1$
      item.setReplacementString(text);
      item.setCursorPosition(text.length());
      item.setDisplayString(";"); // $NON-NLS-1$
      item.setImageType(null);
      candidates.add(item);
    }
  }
 protected CompoundRegion[] getOutsideRegions(IStructuredDocument model, IRegion reg) {
   CompoundRegion[] ret = new CompoundRegion[2];
   RegionIterator it = new RegionIterator(model, reg.getOffset());
   it.prev();
   if (it.hasPrev()) {
     ITextRegion textRegion = it.prev();
     IStructuredDocumentRegion documentRegion = it.getStructuredDocumentRegion();
     ret[0] = new CompoundRegion(documentRegion, textRegion);
   } else {
     ret[0] = null;
   }
   it.reset(model, reg.getOffset() + reg.getLength());
   if (it.hasNext()) {
     ITextRegion textRegion = it.next();
     IStructuredDocumentRegion documentRegion = it.getStructuredDocumentRegion();
     ret[1] = new CompoundRegion(documentRegion, textRegion);
   } else {
     ret[1] = null;
   }
   return ret;
 }