Examples of railo.transformer.cfml.ExprTransformer

railo.transformer.cfml.ExprTransformer
Innerhalb einer TLD (Tag Library Descriptor) kann eine Klasse angemeldet werden, welche das Interface ExprTransfomer implementiert, um Ausdruecke die innerhalb von Attributen und dem Body von Tags vorkommen zu transformieren. Die Idee dieses Interface ist es die Moeglichkeit zu bieten, weitere ExprTransfomer zu erstellen zu koennen, um fuer verschiedene TLD, verschiedene Ausdrucksarten zu bieten.

        if(tagLibTag.getParseBody())parseExpression=true;
        
        while(true)  {
          
          // Load Expession Transformer from TagLib
          ExprTransformer transfomer=null;
          if(parseExpression) {
            try {
              transfomer = tagLibTag.getTagLib().getExprTransfomer();
            } catch (TagLibException e) {
              throw new TemplateException(data.cfml,e);

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   * @throws TemplateException
   */
  public static Expression attributeValue(TagData data,TagLibTag tag, String type,boolean parseExpression,boolean isNonName, Expression noExpression) throws TemplateException {
    Expression expr;
    try {
      ExprTransformer transfomer=null;
      if(parseExpression){
          transfomer = tag.getTagLib().getExprTransfomer();
      }
      else  {
        if(data.getSimpleExprTransformer()==null) {
          data.setSimpleExprTransformer(new SimpleExprTransformer('#'));
          //set.setSpecialChar();
        }
        transfomer=data.getSimpleExprTransformer();
      }
      if(isNonName) {
          int pos=data.cfml.getPos();
          try {
          expr=transfomer.transform(data.page,data.ep,data.flibs,data.scriptTags,data.cfml,data.settings);
          }
          catch(TemplateException ete) {
             if(data.cfml.getPos()==pos)expr=noExpression;
             else throw ete;
          }
      }
      else expr=transfomer.transformAsString(data.page,data.ep,data.flibs,data.scriptTags,data.cfml,data.settings,true);
      if(type.length()>0) {
        expr=CastOther.toExpression(expr, type);
      }
    } catch (TagLibException e) {
      throw new TemplateException(data.cfml,e);

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    if(tag.containsAttribute("condition")){
      if(tag.isScriptBase())
        throw new EvaluatorException("tag loop-condition is not supported within cfscript, use instead a while statement.");
      
      TagLib tagLib=tagLibTag.getTagLib();
      ExprTransformer transformer;
      String text=ASMUtil.getAttributeString(tag, "condition");


      try {
        ConfigImpl config=(ConfigImpl) ThreadLocalPageContext.getConfig();
        transformer = tagLib.getExprTransfomer();
        Expression expr=transformer.transform(ASMUtil.getAncestorPage(tag),null,flibs,config.getCoreTagLib().getScriptTags(),new CFMLString(text,"UTF-8"),TransfomerSettings.toSetting(ThreadLocalPageContext.getConfig(),null));
        tag.addAttribute(new Attribute(false,"condition",CastBoolean.toExprBoolean(expr),"boolean"));
      }
      catch (Exception e) {
        throw new EvaluatorException(e.getMessage());
      }

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Related Classes of railo.transformer.cfml.ExprTransformer

railo.transformer.cfml.evaluator.impl.Loop

railo.transformer.cfml.tag.CFMLTransformer

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