public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc.Count > 0 && ParserHelpers.IsEqual(Field.KEY_FOREACH, tc.First.Text))
{
if (tc.Count > 5 &&
tc[1].TokenKind == TokenKind.LeftParentheses &&
tc[2].TokenKind == TokenKind.TextData &&
ParserHelpers.IsEqual(tc[3].Text, Field.KEY_IN) &&
tc.Last.TokenKind == TokenKind.RightParentheses)
{
ForeachTag tag = new ForeachTag();
tag.Name = tc[2].Text;
TokenCollection coll = new TokenCollection();
coll.Add(tc, 4, tc.Count - 2);
tag.Source = parser.Read(coll);
while (parser.MoveNext())
{
tag.Children.Add(parser.Current);
if (parser.Current is EndTag)
{
return(tag);
}
}
throw new ParseException(string.Concat("foreach is not properly closed by a end tag:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
else
{
throw new ParseException(string.Concat("syntax error near foreach:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc.Count == 1 && tc.First.TokenKind == TokenKind.TextData && ParserHelpers.IsEqual(tc.First.Text, Field.KEY_NULL))
{
return(new NullTag());
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc.Count == 1 &&
ParserHelpers.IsEqual(tc.First.Text, Field.KEY_END))
{
return(new EndTag());
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (ParserHelpers.IsEqual(tc.First.Text, Field.KEY_INCLUDE))
{
if (tc.Count > 2 &&
(tc[1].TokenKind == TokenKind.LeftParentheses) &&
tc.Last.TokenKind == TokenKind.RightParentheses)
{
IncludeTag tag = new IncludeTag();
tag.Path = parser.Read(new TokenCollection(tc, 2, tc.Count - 2));
return(tag);
}
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (ParserHelpers.IsEqual(tc.First.Text, Field.KEY_JSON))
{
if (tc.Count > 2 &&
(tc[1].TokenKind == TokenKind.LeftParentheses) &&
tc.Last.TokenKind == TokenKind.RightParentheses)
{
Tag vtag = parser.Read(new TokenCollection(tc, 2, tc.Count - 2));
JsonTag tag = new JsonTag();
tag.Json = vtag;
return(tag);
}
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc.Count > 3 &&
ParserHelpers.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 ParseException(string.Concat("if is not properly closed by a end tag:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
else
{
throw new ParseException(string.Concat("syntax error near if:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc.Count > 3 &&
ParserHelpers.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 ParseException(string.Concat("syntax error near if:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (ParserHelpers.IsEqual(tc.First.Text, Field.KEY_ARRAY))
{
if (tc.Count > 2 &&
(tc[1].TokenKind == TokenKind.LeftParentheses) &&
tc.Last.TokenKind == TokenKind.RightParentheses)
{
int pos = 0;
int begin = 2;
int end;
Tag tmp;
ArrayTag tag = new ArrayTag();
Stack <TokenKind> last = new Stack <TokenKind>();
for (int i = 2; i < tc.Count; ++i)
{
if ((tc[i].TokenKind == TokenKind.Comma && last.Count == 0) || i == (tc.Count - 1))
{
end = i - 1;
tmp = parser.Read(new TokenCollection(tc, begin, end));
if (tmp is ExpressionTag || tmp is SetTag)
{
if (tmp is SetTag)
{
SetTag set = (SetTag)tmp;
VariableTag var = new VariableTag();
var.Name = set.Name;
object val = var.Parse(parser.Context);
if (val != null)
{
if (val is string)
{
tag.Set((string)val, set.Value, parser.Context);
}
else if (VariableTag.IsNumber(val))
{
tag.Set((int)val, set.Value, parser.Context);
}
else
{
throw new ParseException(string.Concat("array key type is error:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
}
else
{
throw new ParseException(string.Concat("array key is null referer:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
}
else if (tmp.Children[0] is StringTag)
{
tag.Set(((StringTag)tmp.Children[0]).Value, tmp.Children[2], parser.Context);
}
else if (tmp.Children[0] is NumberTag)
{
tag.Set((int)((NumberTag)tmp.Children[0]).Value, tmp.Children[2], parser.Context);
}
else
{
throw new ParseException(string.Concat("array key type is error:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
}
else
{
tag.Set(pos, tmp, parser.Context);
++pos;
}
begin = i + 1;
}
else if (tc[i].TokenKind == TokenKind.StringStart)
{
last.Push(TokenKind.StringStart);
}
else if (tc[i].TokenKind == TokenKind.LeftParentheses)
{
last.Push(TokenKind.LeftParentheses);
}
else if (tc[i].TokenKind == TokenKind.StringEnd && last.Peek() == TokenKind.StringStart)
{
last.Pop();
}
else if (tc[i].TokenKind == TokenKind.RightParentheses && last.Peek() == TokenKind.LeftParentheses)
{
last.Pop();
}
}
return(tag);
}
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
//支持写法：简写格式：
//常规格式：
if (tc.Count > 5 &&
ParserHelpers.IsEqual(tc.First.Text, Field.KEY_SET) &&
tc[1].TokenKind == TokenKind.LeftParentheses &&
tc[3].Text == "=" &&
tc.Last.TokenKind == TokenKind.RightParentheses)
{
SetTag tag = new SetTag();
tag.Name = tc[2].Text;
TokenCollection coll = new TokenCollection();
coll.Add(tc, 4, tc.Count - 2);
tag.Value = parser.Read(coll);
return(tag);
}
else if (tc.Count == 2 &&
tc.First.TokenKind == TokenKind.TextData &&
tc.Last.TokenKind == TokenKind.Operator &&
(tc.Last.Text == "++" || tc.Last.Text == "--"))
{
SetTag tag = new SetTag();
tag.Name = tc.First.Text;
ExpressionTag c = new ExpressionTag();
c.AddChild(new VariableTag()
{
FirstToken = tc.First,
Name = tc.First.Text
});
c.AddChild(new TextTag()
{
FirstToken = new Token(TokenKind.Operator, tc.Last.Text[0].ToString())
});
c.AddChild(new NumberTag()
{
Value = 1,
FirstToken = new Token(TokenKind.Number, "1")
});
tag.Value = c;
return(tag);
}
else if (tc.Count > 2 &&
tc.First.TokenKind == TokenKind.TextData &&
tc[1].Text == "=")
{
SetTag tag = new SetTag();
tag.Name = tc.First.Text;
TokenCollection coll = new TokenCollection();
coll.Add(tc, 2, tc.Count - 1);
tag.Value = parser.Read(coll);
return(tag);
}
return(null);
}
public Tag Parse(TemplateParser parser, TokenCollection tc)
{
if (tc.Count > 3 && ParserHelpers.IsEqual(Field.KEY_FOR, tc.First.Text))
{
if (tc[1].TokenKind == TokenKind.LeftParentheses &&
tc.Last.TokenKind == TokenKind.RightParentheses)
{
int pos = 0,
start = 2,
end;
List <Tag> ts = new List <Tag>(3);
ForTag tag = new ForTag();
for (int i = 2; i < tc.Count - 1; ++i)
{
end = i;
if (tc[i].TokenKind == TokenKind.Punctuation && tc[i].Text == ";")
{
if (pos == 0)
{
TokenCollection coll = new TokenCollection();
coll.Add(tc, start, end - 1);
if (coll.Count > 0)
{
ts.Add(parser.Read(coll));
}
else
{
ts.Add(null);
}
start = i + 1;
continue;
}
}
if (tc[i].TokenKind == TokenKind.LeftParentheses)
{
++pos;
}
else if (tc[i].TokenKind == TokenKind.RightParentheses)
{
--pos;
}
if (i == tc.Count - 2)
{
TokenCollection coll = new TokenCollection();
coll.Add(tc, start, end);
if (coll.Count > 0)
{
ts.Add(parser.Read(coll));
}
else
{
ts.Add(null);
}
}
}
if (ts.Count != 3)
{
throw new ParseException(string.Concat("syntax error near for:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
tag.Initial = ts[0];
tag.Test = ts[1];
tag.Do = ts[2];
while (parser.MoveNext())
{
tag.Children.Add(parser.Current);
if (parser.Current is EndTag)
{
return(tag);
}
}
throw new ParseException(string.Concat("for is not properly closed by a end tag:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
else
{
throw new ParseException(string.Concat("syntax error near for:", tc), parser.Context.CurrentPath, tc.First.BeginLine, tc.First.BeginColumn);
}
}
return(null);
}