private Result(JSONObject obj)
{
if (obj == null)
{
throw new ArgumentException("json object cannot be null");
}
_isArray = false;
_json = obj;
_array = null;
}
private Result(JSONArray obj)
{
if (obj == null)
{
throw new ArgumentException("json object cannot be null");
}
_isArray = true;
_json = null;
_array = obj;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 07JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Scan the content following the named tag, attaching it to the context.
* @param x The JSONXMLTokener containing the source str.
* @param context The JSONObject that will include the new material.
* @param name The tag name.
* @return true if the close tag is processed.
* @
*/
private static bool Parse(JSONXMLTokener x, JSONObject context,
string name)
{
JSONObject o;
string s;
// Test for and skip past these forms:
// <!-- ... -->
// <! ... >
// <![ ... ]]>
// <? ... ?>
// Report errors for these forms:
// <>
// <=
// <<
var t = x.NextToken();
// <!
if (t == (object)BANG)
{
var c = x.Next();
if (c == '-')
{
if (x.Next() == '-')
{
x.SkipPast("-->");
return false;
}
x.Back();
}
else if (c == '[')
{
t = x.NextToken();
if (t.Equals("CDATA"))
{
if (x.Next() == '[')
{
s = x.NextCDATA();
if (s.Length > 0)
{
context.Accumulate("content", s);
}
return false;
}
}
throw x.SyntaxError("Expected 'CDATA['");
}
var i = 1;
do
{
t = x.NextMeta();
if (t == null)
{
throw x.SyntaxError("Missing '>' after '<!'.");
}
if (t == (object)LT)
{
i += 1;
}
else if (t == (object)GT)
{
i -= 1;
}
} while (i > 0);
return false;
}
if (t == (object)QUEST)
{
// <?
x.SkipPast("?>");
return false;
}
if (t == (object)SLASH)
{
// Close tag </
if (name == null || !x.NextToken().Equals(name))
{
throw x.SyntaxError("Mismatched close tag");
}
if (x.NextToken() != (object)GT)
{
throw x.SyntaxError("Misshaped close tag");
}
return true;
}
if (t is char)
{
throw x.SyntaxError("Misshaped tag");
// Open tag <
}
string n = (string)t;
t = null;
o = new JSONObject();
for (; ; )
{
if (t == null)
{
t = x.NextToken();
}
// attribute = value
if (t is string)
{
s = (string)t;
t = x.NextToken();
if (t == (object)EQ)
{
t = x.NextToken();
if (!(t is string))
{
throw x.SyntaxError("Missing value");
}
o.Accumulate(s, t);
t = null;
}
else
{
o.Accumulate(s, "");
}
// Empty tag <.../>
}
else if (t == (object)SLASH)
{
if (x.NextToken() != (object)GT)
{
throw x.SyntaxError("Misshaped tag");
}
context.Accumulate(n, o);
return false;
// Content, between <...> and </...>
}
else if (t == (object)GT)
{
for (; ; )
{
t = x.NextContent();
if (t == null)
{
if (name != null)
{
throw x.SyntaxError("Unclosed tag " + name);
}
return false;
}
if (t is string)
{
s = (string)t;
if (s.Length > 0)
{
o.Accumulate("content", s);
}
// Nested element
}
else if (t == (object)LT)
{
if (Parse(x, o, n))
{
if (o.Length() == 0)
{
context.Accumulate(n, "");
}
else if (o.Length() == 1 &&
o.Opt("content") != null)
{
context.Accumulate(n, o.Opt("content"));
}
else
{
context.Accumulate(n, o);
}
return false;
}
}
}
}
else
{
throw x.SyntaxError("Misshaped tag");
}
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 07JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Convert a well-formed (but not necessarily valid) JSONXML str into a
* JSONObject. Some information may be lost in this transformation
* because JSON is a data format and JSONXML is a document format. JSONXML uses
* elements, attributes, and content text, while JSON uses unordered
* collections of name/value pairs and arrays of values. JSON does not
* does not like to distinguish between elements and attributes.
* Sequences of similar elements are represented as JSONArrays. Content
* text may be placed in a "content" member. Comments, prologs, DTDs, and
* <code><[ [ ]]></code> are ignored.
* @param str The source str.
* @return A JSONObject containing the structured data from the JSONXML str.
* @
*/
public static JSONObject ToJSONObject(string str)
{
var o = new JSONObject();
var x = new JSONXMLTokener(str);
while (x.More())
{
x.SkipPast("<");
Parse(x, o, null);
}
return o;
}
internal static JSONObject Apply(JSONObject start, ArrayList tokens,
int firstToken)
{
if (start == null)
{
return null;
}
var nTokens = tokens.Count;
if (firstToken >= nTokens)
{
return start;
}
for (var i = firstToken; i < nTokens; i++)
{
var tok1 = (string)tokens[i];
if (tok1.Length == 1 && JSONPathTokenizer.IsDelimiter(tok1[0]))
{
throw new JSONException("Syntax error: path cannot start with a delimiter: " + tok1);
}
if (i + 1 >= nTokens)
{
return start;
}
var tok2 = (string)tokens[i + 1];
var t2 = tok2[0];
switch (t2)
{
case SEPARATOR:
return Apply(start.OptJSONObject(tok1), tokens, i + 2);
case ARRAY_START:
if (i + 2 >= nTokens)
{
throw new JSONException("Syntax error: array must be followed by a dimension: " + tok1);
}
var tok3 = (string)tokens[i + 2];
int dim ;
try
{
dim = int.Parse(tok3);
}
catch (FormatException)
{
throw new JSONException("Syntax error: illegal array dimension: " + tok3);
}
if (i + 3 >= nTokens)
{
throw new JSONException("Syntax error: array dimension must be closed: " + tok3);
}
var tok4 = (string)tokens[i + 3];
if (tok4.Length != 1 && tok4[0] != ARRAY_END)
{
throw new JSONException("Syntax error: illegal close of array dimension: " + tok4);
}
if (i + 4 >= nTokens)
{
throw new JSONException("Syntax error: array close must be followed by a separator: " + tok1);
}
var tok5 = (string)tokens[i + 4];
if (tok5.Length != 1 && tok5[0] != SEPARATOR)
{
throw new JSONException("Syntax error: illegal separator after array: " + tok4);
}
i += 4;
var array = start.OptJSONArray(tok1);
return array == null ? null : Apply((JSONObject)array.Opt(dim), tokens, i + 1);
}
}
return start;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 07JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Construct a JSONObject from a subset of another JSONObject.
* An array of strings is used to identify the keys that should be copied.
* Missing keys are ignored.
* @param jo A JSONObject.
* @param sa An array of strings.
* @exception JSONException If a value is a non-finite number.
*/
public JSONObject(JSONObject jo, string[] sa)
: this()
{
for (var i = 0; i < sa.Length; i += 1)
{
PutOpt(sa[i], jo.Opt(sa[i]));
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 07JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Produce a JSONObject by combining a JSONArray of names with the values
* of this JSONArray.
* @param names A JSONArray containing a list of key strings. These will be
* paired with the values.
* @return A JSONObject, or null if there are no names or if this JSONArray
* has no values.
* @ If any of the names are null.
*/
public JSONObject ToJSONObject(JSONArray names)
{
if (names == null || names.Length() == 0 || Length() == 0)
{
return null;
}
var jo = new JSONObject();
for (int i = 0; i < names.Length(); i += 1)
{
jo.Put(names.GetString(i), Opt(i));
}
return jo;
}
