/// <summary> /// 带变量字段的初始化 /// </summary> /// <param name="ownerTemplate"></param> /// <param name="varExp"></param> internal DMEWeb_VariableTag(DMEWeb_Template ownerTemplate, DMEWeb_VariableExpression varExp) : base(ownerTemplate) { //注册添加属性时触发事件.用于设置自身的某些属性值 this.Attributes = new DMEWeb_AttributeCollection(this); this.Attributes.Adding += OnAddingAttribute; this.VarExpression = varExp; this.CallFunctions = new List<DMEWeb_IExpression>(); }
/// <summary> /// 变量表达式 /// </summary> /// <param name="parentExp"></param> /// <param name="fieldName"></param> /// <param name="isMethod"></param> internal DMEWeb_VariableExpression(DMEWeb_VariableExpression parentExp, string fieldName, bool isMethod) { parentExp.NextExpression = this; this.ParentExpression = parentExp; this.VariableId = parentExp.VariableId; this.FieldName = fieldName; this.IsMethod = isMethod; this.NeedCacheData = parentExp.NeedCacheData; }
/// <summary> /// 克隆表达式 /// </summary> /// <param name="ownerTemplate"></param> /// <returns></returns> public DMEWeb_IExpression Clone(DMEWeb_Template ownerTemplate) { DMEWeb_VariableIdentity variableId = this.VariableId.Clone(ownerTemplate); DMEWeb_VariableExpression exp = new DMEWeb_VariableExpression(variableId, this.FieldName, this.IsMethod, this.NeedCacheData); if (this.NextExpression != null) { exp.NextExpression = (DMEWeb_VariableExpression)(this.NextExpression.Clone(ownerTemplate)); exp.NextExpression.ParentExpression = exp; } return exp; }
/// <summary> /// 构建变量的字段列表 /// </summary> /// <param name="variableId"></param> /// <param name="match"></param> /// <param name="needCacheData"></param> /// <returns></returns> internal static DMEWeb_VariableExpression CreateVariableExpression(DMEWeb_VariableIdentity variableId, Match match, bool needCacheData) { //解析变量字段列表 DMEWeb_VariableExpression field = new DMEWeb_VariableExpression(variableId, needCacheData); CaptureCollection fields = match.Groups["field"].Captures; CaptureCollection methods = match.Groups["method"].Captures; DMEWeb_VariableExpression item = field; for (var i = 0; i < fields.Count; i++) { string fieldName = fields[i].Value; DMEWeb_VariableExpression exp = new DMEWeb_VariableExpression(item, fieldName, !string.IsNullOrEmpty(methods[i].Value)); item = exp; } return field; }