htmlpolicy.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 704 行 · 第 1/2 页

      case BASEFONT: case BR: case AREA: case LINK: case IMG: case PARAM: 
      case HR: case INPUT: case FRAME: case ISINDEX: 
      case BASE: case META:
	return PUSH_EMPTY;

      case TD: case TH:
        return PUSH;

      case SCRIPT: case STYLE:
        return PUSH_VERBATIM;

      default:
        return PUSH;
      }

    case TD: case TH:
      switch (nextCode) {
      case THEAD: case TFOOT: case TBODY: case COLGROUP: case COL: case TR:
      case TD: case TH:
	return POP;

      case BASEFONT: case BR: case AREA: case LINK: case IMG: case PARAM: 
      case HR: case INPUT: case FRAME: case ISINDEX: 
      case BASE: case META:
	return PUSH_EMPTY;

      case SCRIPT: case STYLE:
        return PUSH_VERBATIM;

      default:
	return PUSH;
      }

    case P: case DT:
      switch (nextCode) {
      case BLOCK: case P: case TABLE: case CAPTION: case THEAD:
      case TFOOT: case COLGROUP: case TBODY: case TR: case TD: 
      case TH: case DT: case LI:
	return POP;

      case BASEFONT: case BR: case AREA: case LINK: case IMG: case PARAM: 
      case HR: case INPUT: case COL: case FRAME: case ISINDEX: 
      case BASE: case META:
	return PUSH_EMPTY;

      case SCRIPT: case STYLE:
        return PUSH_VERBATIM;

      default:
	return PUSH;
      }

    case TABLE:
      switch (nextCode) {
      case CAPTION: case THEAD: case TFOOT: case COL: case COLGROUP:
      case TBODY: case TR:
	return PUSH;

      case SCRIPT: case STYLE:
        return PUSH_VERBATIM;

      default:
        /*
	opt = "tr";
	return PUSH_OPT;
        */
        return PUSH;
      }

    default:
      switch (nextCode) {
      case BASEFONT: case BR: case AREA: case LINK: case IMG: case PARAM: 
      case HR: case INPUT: case COL: case FRAME: case ISINDEX: 
      case BASE: case META:
	return PUSH_EMPTY;

      case SCRIPT: case STYLE:
        return PUSH_VERBATIM;

      default:
	return PUSH;
      }
    }
  }

  private static CharScanner charsetScanner = new CharScanner(" \t=;");

  private void checkMetaEncoding(Element elt)
  {
    String http = elt.getAttribute("http-equiv");
    String content = elt.getAttribute("content");
    if (http.equals("") || content.equals("") ||
	! http.equalsIgnoreCase("content-type"))
      return;

    CharCursor cursor = new StringCharCursor(content);
    charsetScanner.scan(cursor);
    charsetScanner.skip(cursor);
    CharBuffer buf = CharBuffer.allocate();
    while (cursor.current() != cursor.DONE) {
      buf.clear();
      charsetScanner.scan(cursor, buf);
      if (buf.toString().equalsIgnoreCase("charset")) {
	charsetScanner.skip(cursor);
	buf.clear();
	charsetScanner.scan(cursor, buf);
	if (buf.length() > 0) {
	  try {
	    is.setEncoding(buf.close());
	  } catch (IOException e) {
	  }
	  return;
	}
      }
    }
  }

  int elementCloseAction(XmlParser parser, QName node, String tagEnd)
    throws XmlParseException
  {
    String nodeName = node.getName();
    if (nodeName.equals(tagEnd))
      return POP;

    if (nodeName == "#document" && tagEnd.equals("")) {
      /*
      Document doc = (Document) node;

      // If JSP, move any text into the body element
      if (isJsp && doc.getDocumentElement() == null &&
          node.getFirstChild() instanceof Text) {
        Element html = doc.createElement("html");
        doc.appendChild(html);
        Element body = doc.createElement("body");
        html.appendChild(body);
        Node child;
        while ((child = doc.getFirstChild()) instanceof Text ||
        child instanceof Comment) {
          body.appendChild(child);
        }
      }
      */
      return POP;
    }
    switch (names.get(tagEnd)) {
    case BASEFONT: case BR: case AREA: case LINK: case IMG: case PARAM: 
    case HR: case INPUT: case COL: case FRAME: case ISINDEX: 
    case BASE: case META:
      String errorTagEnd;
      if (tagEnd.equals(""))
        errorTagEnd = L.l("end of file");
      else
        errorTagEnd = "`<" + tagEnd + ">'";

      throw parser.error(L.l("{0} expects to be empty",
                             errorTagEnd));
    }

    switch (names.get(nodeName)) {
    case BODY: case P:
    case DT: case DD: case LI: case OPTION:
    case THEAD: case TFOOT: case TBODY: case COLGROUP: 
    case TR: case TH: case TD:
      return POP_AND_LOOP;

    case HTML:
    case HEAD:
      // If JSP and missing a body, move any text into the body element
      /*
      if (isJsp && node.getLastChild() instanceof Text) {
        Node child;

        for (child = node.getLastChild();
             child != null;
             child = child.getPreviousSibling()) {
          if (child.getNodeName().equals("body"))
            return POP_AND_LOOP;
        }

        Document doc = node.getOwnerDocument();
        Element body = doc.createElement("body");
        
        while ((child = node.getLastChild()) instanceof Text ||
               child instanceof Comment) {
          body.insertBefore(child, body.getFirstChild());
        }
        
        doc.getDocumentElement().appendChild(body);
      }
      */
      return POP_AND_LOOP;

    default:

      if (forgiving) {
        /*
	Node parent = node;
	for (; parent != null; parent = parent.getParentNode()) {
	  if (parent.getNodeName().equals(tagEnd))
	    return POP_AND_LOOP;
	}
	return IGNORE;
        */
        return POP_AND_LOOP;
      }
      
      String errorTagEnd;
      if (tagEnd.equals(""))
        errorTagEnd = L.l("end of file");
      else
        errorTagEnd = "`</" + tagEnd + ">'";

      String expect;
      if (nodeName.equals("#document")) {
        throw parser.error(L.l("expected {0} at {1}",
                               L.l("end of document"), errorTagEnd));
      }
      else
	expect = "`</" + nodeName + ">'";

      throw parser.error(L.l("expected {0} at {1} (open at {2})",
                             expect, errorTagEnd,
                             "" + parser.getNodeLine()));
    }
  }

  private static void addName(String name, int code)
  {
    names.put(name, code);
    cbNames.put(new CharBuffer(name), code);

    String upper = name.toUpperCase();
    names.put(upper, code);
    cbNames.put(new CharBuffer(upper), code);
  }

  static {
    names = new IntMap();
    cbNames = new IntMap();
    
    addName("#document", DOCUMENT);
    addName("#comment", COMMENT);
    addName("#text", TEXT);
    addName("#jsp", JSP);
    addName("#whitespace", WHITESPACE);
    addName("html", HTML);

    addName("head", HEAD);
    addName("title", TITLE);
    addName("isindex", ISINDEX);
    addName("base", BASE);
    addName("script", SCRIPT);
    addName("style", STYLE);
    addName("meta", META);
    addName("link", LINK);
    addName("object", OBJECT);

    addName("body", BODY);

    addName("basefont", BASEFONT);
    addName("br", BR);
    addName("area", AREA);
    addName("link", LINK);
    addName("img", IMG);
    addName("param", PARAM);
    addName("hr", HR);
    addName("input", INPUT);
    addName("frame", FRAME);

    addName("p", P);
    addName("dt", DT);
    addName("dd", DD);
    addName("li", LI);
    addName("option", OPTION);

    addName("table", TABLE);
    addName("caption", CAPTION);
    addName("thead", THEAD);
    addName("tfoot", TFOOT);
    addName("col", COL);
    addName("colgroup", COLGROUP);
    addName("tbody", TBODY);
    addName("tr", TR);
    addName("th", TH);
    addName("td", TD);

    addName("h1", BLOCK);
    addName("h2", BLOCK);
    addName("h3", BLOCK);
    addName("h4", BLOCK);
    addName("h5", BLOCK);
    addName("h6", BLOCK);
    addName("ul", BLOCK);
    addName("ol", BLOCK);
    addName("dir", BLOCK);
    addName("menu", BLOCK);
    addName("pre", BLOCK);
    addName("dl", BLOCK);
    addName("div", BLOCK);
    addName("center", BLOCK);
    addName("noscript", BLOCK);
    addName("noframes", BLOCK);
    addName("blockquote", BLOCK);
    addName("form", BLOCK);
    addName("fieldset", BLOCK);
    addName("address", BLOCK);

    addName("tt", INLINE);
    addName("i", INLINE);
    addName("b", INLINE);
    addName("u", INLINE);
    addName("s", INLINE);
    addName("strike", INLINE);
    addName("big", INLINE);
    addName("small", INLINE);

    addName("em", INLINE);
    addName("strong", INLINE);
    addName("dfn", INLINE);
    addName("code", INLINE);
    addName("samp", INLINE);
    addName("kbd", INLINE);
    addName("var", INLINE);
    addName("cite", INLINE);
    addName("abbr", INLINE);
    addName("acronym", INLINE);
    addName("font", INLINE);
    addName("iframe", INLINE);
    addName("applet", INLINE);
    addName("ins", INLINE);
    addName("del", INLINE);

    addName("a", INLINE);
    addName("map", INLINE);
    addName("q", INLINE);
    addName("sub", INLINE);
    addName("sup", INLINE);
    addName("span", INLINE);
    addName("bdo", INLINE);

    addName("select", INLINE);
    addName("textarea", INLINE);
    addName("label", INLINE);
    addName("optgroup", INLINE);
    addName("button", INLINE);
    addName("legend", INLINE);
    addName("frameset", FRAMESET);

    // CDATA -- STYLE, SCRIPT
  }
}