// We know its an object, so data format is
// e -> <tag>d</tag>
// d -> <tag>d</tag> | term
private static Dictionary <string, dynamic> ParseObject(Span <XMLToken> tokens)
{
var ret = new Dictionary <string, dynamic>();
for (int i = 0; i < tokens.Length; ++i)
{
string key = tokens[i].data;
++i;
// <tag>term</tag>
if (tokens[i].IsData())
{
ret[key] = new Common.ASTString(tokens[i].data);
// TODO : check if tag is closed
++i;
continue;
}
// token is a opening tag
// new object since key and optag arent same
if (!tokens[i].IsOpening(key))
{
int begin = i;
while (i < tokens.Length && !tokens[i].IsClosing(key))
{
++i;
}
ret[key] = ParseObject(tokens.Slice(begin, i - begin));
continue;
}
// collection since key and optag are same
if (tokens[i].IsOpening(key))
{
int begin = i, top = 1;
while (i < tokens.Length && top > 0)
{
if (tokens[i].IsClosing(key))
{
--top;
}
if (tokens[i].IsOpening(key))
{
++top;
}
++i;
}
ret[key] = ParseCollection(tokens.Slice(begin, i - begin - 1));
--i;
continue;
}
throw new NotSupportedException("Invalid XML format.");
}
return(ret);
}
// Parses a JSON object ( starting and ending with '{' and '}' )
public static Dictionary <string, dynamic> ParseJSON(Span <JSONToken> tokens)
{
int len = tokens.Length;
Dictionary <string, dynamic> ret = new Dictionary <string, dynamic>();
for (int i = 1; i < len - 1; ++i)
{
string key = tokens[i].content;
if (!tokens[++i].IsColon())
{
throw new NotImplementedException("Invalid JSON expression.");
}
switch (tokens[++i].type)
{
case JSONTokenType.STRING:
ret[key] = new Common.ASTString(tokens[i].content);
if (tokens[i + 1].IsComma())
{
++i;
}
continue;
case JSONTokenType.NUMBER:
ret[key] = new Common.ASTNumber(tokens[i].content);
if (tokens[i + 1].IsComma())
{
++i;
}
continue;
case JSONTokenType.BOOL:
ret[key] = new Common.ASTBoolean(tokens[i].content == "true");
if (tokens[i + 1].IsComma())
{
++i;
}
continue;
case JSONTokenType.SYMBOL:
if (tokens[i].content == "{") // Object
{
int begin = i, stack = 1;
++i;
while (stack != 0)
{
if (tokens[i].IsObjectOpening())
{
++stack;
}
if (tokens[i].IsObjectClosing())
{
--stack;
}
if (stack == 0)
{
var sliced = tokens.Slice(begin, i - begin + 1);
ret[key] = ParseJSON(sliced);
++i;
continue;
}
++i;
}
}
else if (tokens[i].content == "[") // Collection
{
int begin = i, stack = 1;
++i;
while (stack != 0)
{
if (tokens[i].IsCollectionOpening())
{
++stack;
}
if (tokens[i].IsCollectionClosing())
{
--stack;
}
if (stack == 0)
{
var sliced = tokens.Slice(begin, i - begin + 1);
ret[key] = ParseCollection(sliced);
++i;
continue;
}
++i;
}
}
continue;
}
}
return(ret);
}
