/// <summary>
/// 分析标签
/// </summary>
/// <param name="parser">TemplateParser</param>
/// <param name="tc">Token集合</param>
/// <returns></returns>
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc != null
&& parser != null
&& tc.Count > 3
&& Common.Utility.IsEqual(tc.First.Text, Field.KEY_ELSEIF))
{
if (tc[1].TokenKind == TokenKind.LeftParentheses
&& tc.Last.TokenKind == TokenKind.RightParentheses)
{
ElseifTag tag = new ElseifTag();
TokenCollection coll = new TokenCollection();
coll.Add(tc, 2, tc.Count - 2);
tag.Test = parser.Read(coll);
return tag;
}
else
{
throw new Exception.ParseException(String.Concat("syntax error near if:", tc), tc.First.BeginLine, tc.First.BeginColumn);
}
}
return null;
}
/// <summary>
/// 分析标签
/// </summary>
/// <param name="parser">TemplateParser</param>
/// <param name="tc">Token集合</param>
/// <returns></returns>
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc != null
&& parser != null
&& tc.Count > 3
&& Common.Utility.IsEqual(tc.First.Text, Field.KEY_IF))
{
if (tc[1].TokenKind == TokenKind.LeftParentheses
&& tc.Last.TokenKind == TokenKind.RightParentheses)
{
IfTag tag = new IfTag();
ElseifTag t = new ElseifTag();
TokenCollection coll = new TokenCollection();
coll.Add(tc, 2, tc.Count - 2);
t.Test = parser.Read(coll);
t.FirstToken = coll.First;
//t.LastToken = coll.Last;
tag.AddChild(t);
while (parser.MoveNext())
{
if (parser.Current is EndTag)
{
tag.AddChild(parser.Current);
return tag;
}
else if (parser.Current is ElseifTag
|| parser.Current is ElseTag)
{
tag.AddChild(parser.Current);
}
else
{
tag.Children[tag.Children.Count - 1].AddChild(parser.Current);
}
}
throw new Exception.ParseException(String.Concat("if is not properly closed by a end tag:", tc), tc.First.BeginLine, tc.First.BeginColumn);
}
else
{
throw new Exception.ParseException(String.Concat("syntax error near if:", tc), tc.First.BeginLine, tc.First.BeginColumn);
}
}
return null;
}
