sacparser.java

cssparser -- CSS 的语法解析器。采用java语言编写。可用在服务端生成页面。

        if (start) {
            _docHandler.endMedia(ml);
        }
    }
  }

  final public void mediaList(SACMediaListImpl ml) throws ParseException {
    String s;
    s = medium();
    label_12:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case COMMA:
        ;
        break;
      default:
        jj_la1[20] = jj_gen;
        break label_12;
      }
      jj_consume_token(COMMA);
      label_13:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[21] = jj_gen;
          break label_13;
        }
        jj_consume_token(S);
      }
                         ml.add(s);
      s = medium();
    }
      ml.add(s);
  }

  final public void mediaRuleList() throws ParseException {
    label_14:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case DOT:
      case COLON:
      case ASTERISK:
      case LSQUARE:
      case HASH:
      case IDENT:
        styleRule();
        break;
      case PAGE_SYM:
        pageRule();
        break;
      case ATKEYWORD:
        unknownRule();
        break;
      default:
        jj_la1[22] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      label_15:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[23] = jj_gen;
          break label_15;
        }
        jj_consume_token(S);
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case DOT:
      case COLON:
      case ASTERISK:
      case LSQUARE:
      case HASH:
      case PAGE_SYM:
      case ATKEYWORD:
      case IDENT:
        ;
        break;
      default:
        jj_la1[24] = jj_gen;
        break label_14;
      }
    }
  }

  final public void mediaRuleSingle() throws ParseException {
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case DOT:
    case COLON:
    case ASTERISK:
    case LSQUARE:
    case HASH:
    case IDENT:
      styleRule();
      break;
    case PAGE_SYM:
      pageRule();
      break;
    case ATKEYWORD:
      unknownRule();
      break;
    default:
      jj_la1[25] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
  }

//
// medium
//   : IDENT S*
//   ;
//
  final public String medium() throws ParseException {
  Token t;
    t = jj_consume_token(IDENT);
    label_16:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case S:
        ;
        break;
      default:
        jj_la1[26] = jj_gen;
        break label_16;
      }
      jj_consume_token(S);
    }
                         {if (true) return t.image;}
    throw new Error("Missing return statement in function");
  }

//
// page
//   : PAGE_SYM S* IDENT? pseudo_page? S*
//     '{' S* declaration [ ';' S* declaration ]* '}' S*
//   ;
//
  final public void pageRule() throws ParseException {
    Token t = null;
    String s = null;
    boolean start = false;
    try {
      jj_consume_token(PAGE_SYM);
      label_17:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[27] = jj_gen;
          break label_17;
        }
        jj_consume_token(S);
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case COLON:
      case IDENT:
        if (jj_2_1(2)) {
          t = jj_consume_token(IDENT);
          label_18:
          while (true) {
            switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
            case S:
              ;
              break;
            default:
              jj_la1[28] = jj_gen;
              break label_18;
            }
            jj_consume_token(S);
          }
        } else {
          switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
          case IDENT:
            t = jj_consume_token(IDENT);
            s = pseudoPage();
            label_19:
            while (true) {
              switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
              case S:
                ;
                break;
              default:
                jj_la1[29] = jj_gen;
                break label_19;
              }
              jj_consume_token(S);
            }
            break;
          case COLON:
            s = pseudoPage();
            label_20:
            while (true) {
              switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
              case S:
                ;
                break;
              default:
                jj_la1[30] = jj_gen;
                break label_20;
              }
              jj_consume_token(S);
            }
            break;
          default:
            jj_la1[31] = jj_gen;
            jj_consume_token(-1);
            throw new ParseException();
          }
        }
        break;
      default:
        jj_la1[32] = jj_gen;
        ;
      }
      jj_consume_token(LBRACE);
      label_21:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[33] = jj_gen;
          break label_21;
        }
        jj_consume_token(S);
      }
            start = true;
            _docHandler.startPage((t != null) ? unescape(t.image) : null, s);
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case IDENT:
        declaration();
        break;
      default:
        jj_la1[34] = jj_gen;
        ;
      }
      label_22:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case SEMICOLON:
          ;
          break;
        default:
          jj_la1[35] = jj_gen;
          break label_22;
        }
        jj_consume_token(SEMICOLON);
        label_23:
        while (true) {
          switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
          case S:
            ;
            break;
          default:
            jj_la1[36] = jj_gen;
            break label_23;
          }
          jj_consume_token(S);
        }
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case IDENT:
          declaration();
          break;
        default:
          jj_la1[37] = jj_gen;
          ;
        }
      }
      jj_consume_token(RBRACE);
    } finally {
        if (start) {
            _docHandler.endPage((t != null) ? unescape(t.image) : null, s);
        }
    }
  }

//
// pseudoPage
//   : ':' IDENT
//   ;
//
  final public String pseudoPage() throws ParseException {
  Token t;
    jj_consume_token(COLON);
    t = jj_consume_token(IDENT);
                        {if (true) return t.image;}
    throw new Error("Missing return statement in function");
  }

//
// font_face
//   : FONT_FACE_SYM S*
//     '{' S* declaration [ ';' S* declaration ]* '}' S*
//   ;
//
  final public void fontFaceRule() throws ParseException {
    boolean start = false;
    try {
      jj_consume_token(FONT_FACE_SYM);
      label_24:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[38] = jj_gen;
          break label_24;
        }
        jj_consume_token(S);
      }
      jj_consume_token(LBRACE);
      label_25:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[39] = jj_gen;
          break label_25;
        }
        jj_consume_token(S);
      }
                            start = true; _docHandler.startFontFace();
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case IDENT:
        declaration();
        break;
      default:
        jj_la1[40] = jj_gen;
        ;
      }
      label_26:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case SEMICOLON:
          ;
          break;
        default:
          jj_la1[41] = jj_gen;
          break label_26;
        }
        jj_consume_token(SEMICOLON);
        label_27:
        while (true) {
          switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
          case S:
            ;
            break;
          default:
            jj_la1[42] = jj_gen;
            break label_27;
          }
          jj_consume_token(S);
        }
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case IDENT:
          declaration();
          break;
        default:
          jj_la1[43] = jj_gen;
          ;
        }
      }
      jj_consume_token(RBRACE);
    } finally {
        if (start) {
            _docHandler.endFontFace();
        }
    }
  }

//
// operator
//   : '/' S* | ',' S* |
//   ;
//
  final public LexicalUnit operator(LexicalUnit prev) throws ParseException {
  Token t;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case SLASH:
      t = jj_consume_token(SLASH);
      label_28:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[44] = jj_gen;
          break label_28;
        }
        jj_consume_token(S);
      }
                           {if (true) return new LexicalUnitImpl(prev, LexicalUnit.SAC_OPERATOR_SLASH);}
      break;
    case COMMA:
      t = jj_consume_token(COMMA);
      label_29:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[45] = jj_gen;
          break label_29;
        }
        jj_consume_token(S);
      }
                           {if (true) return new LexicalUnitImpl(prev, LexicalUnit.SAC_OPERATOR_COMMA);}
      break;
    default:
      jj_la1[46] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

//
// combinator
//   : '+' S* | '>' S* |
//   ;
//
  final public char combinator() throws ParseException {
  char c = ' ';
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case PLUS:
      jj_consume_token(PLUS);
             c='+';
      label_30:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[47] = jj_gen;
          break label_30;
        }
        jj_consume_token(S);
      }
      break;
    case GT:
      jj_consume_token(GT);
           c='>';
      label_31:
      while (true) {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case S:
          ;
          break;
        default:
          jj_la1[48] = jj_gen;
          break label_31;
        }
        jj_consume_token(S);
      }
      break;
    case S:
      jj_consume_token(S);
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case PLUS:
      case GT:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case PLUS:
          jj_consume_token(PLUS);
                     c='+';
          break;
        case GT:
          jj_consume_token(GT);
                                       c='>';
          break;
        default:
          jj_la1[49] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
        label_32:
        while (true) {
          switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
          case S:
            ;
            break;
          default:
            jj_la1[50] = jj_gen;
            break label_32;
          }
          jj_consume_token(S);
        }
        break;
      default:
        jj_la1[51] = jj_gen;
        ;