/// <summary>
/// 克隆当前元素到新的宿主模板
/// </summary>
/// <param name="ownerTemplate"></param>
/// <returns></returns>
public override Element Clone(Template ownerTemplate)
{
ForEachTag tag = new ForEachTag(ownerTemplate);
this.CopyTo(tag);
tag.Else = this.Else == null ? null : (ForEachElseTag)(this.Else.Clone(ownerTemplate));
tag.From = this.From == null ? null : (VariableExpression)this.From.Clone(ownerTemplate);
tag.Index = this.Index == null ? null : this.Index.Clone(ownerTemplate);
tag.Item = this.Item == null ? null : this.Item.Clone(ownerTemplate);
return(tag);
}
/// <summary>
/// 开始解析标签数据
/// </summary>
/// <param name="ownerTemplate">宿主模板</param>
/// <param name="container">标签的容器</param>
/// <param name="tagStack">标签堆栈</param>
/// <param name="text"></param>
/// <param name="match"></param>
/// <param name="isClosedTag">是否闭合标签</param>
/// <returns>如果需要继续处理EndTag则返回true.否则请返回false</returns>
public override bool ProcessBeginTag(Template ownerTemplate, Tag container, Stack <Tag> tagStack, string text, ref Match match, bool isClosedTag)
{
//判断标签的容器是否为ForEach标签
if (!(container is ForEachTag))
{
throw new ParserException(string.Format("未找到和{0}标签对应的{1}标签", this.TagName, this.EndTagName));
}
ForEachTag foreachTag = (ForEachTag)container;
if (foreachTag.Else != null)
{
throw new ParserException(string.Format("{0}标签不能定义多个{1}标签", this.EndTagName, this.TagName));
}
foreachTag.Else = this;
return(true);
}
/// <summary>
/// 克隆当前元素到新的宿主模板
/// </summary>
/// <param name="ownerTemplate"></param>
/// <returns></returns>
internal override Element Clone(Template ownerTemplate)
{
ForEachTag tag = new ForEachTag(ownerTemplate);
this.CopyTo(tag);
tag.Else = this.Else == null ? null : (ForEachElseTag)(this.Else.Clone(ownerTemplate));
tag.From = this.From == null ? null : (VariableExpression)this.From.Clone(ownerTemplate);
tag.Index = this.Index == null ? null : this.Index.Clone(ownerTemplate);
tag.Item = this.Item == null ? null : this.Item.Clone(ownerTemplate);
return tag;
}
