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From: Robert Smart (SMARTROB@uk.ibm.com) 

Patch for new scripting method osParseJSON.

also, a couple of warning bugs killed.
0.6.0-stable
Dr Scofield 2008-09-18 16:53:26 +00:00
parent ac083becd9
commit 0dff3f2383
5 changed files with 202 additions and 8 deletions
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12
OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
View File

@ -139,7 +139,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
if (m_host.ParentGroup != null)
return new List<SceneObjectPart>(m_host.ParentGroup.Children.Values);
return ret;
break;
case ScriptBaseClass.LINK_ROOT:
if (m_host.ParentGroup != null)
{
@ -148,7 +148,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
return ret;
}
return ret;
break;
case ScriptBaseClass.LINK_ALL_OTHERS:
if (m_host.ParentGroup == null)
return new List<SceneObjectPart>();
@ -156,7 +156,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
if (ret.Contains(m_host))
ret.Remove(m_host);
return ret;
break;
case ScriptBaseClass.LINK_ALL_CHILDREN:
if (m_host.ParentGroup == null)
return new List<SceneObjectPart>();
@ -164,10 +164,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
if (ret.Contains(m_host.ParentGroup.RootPart))
ret.Remove(m_host.ParentGroup.RootPart);
return ret;
break;
case ScriptBaseClass.LINK_THIS:
return ret;
break;
default:
if (linkType < 0 || m_host.ParentGroup == null)
return new List<SceneObjectPart>();
@ -177,7 +177,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
ret = new List<SceneObjectPart>();
ret.Add(target);
return ret;
break;
}
}

187
OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
View File

@ -25,6 +25,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.Remoting.Lifetime;
using OpenMetaverse;
@ -730,5 +731,191 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
World.ParcelMediaSetTime((float)time);
}
public Hashtable osParseJSON(string JSON)
{
if (!m_OSFunctionsEnabled)
{
OSSLError("osParseJSON: permission denied");
return null;
}
CheckThreatLevel(ThreatLevel.None, "osParseJSON");
m_host.AddScriptLPS(1);
// see http://www.json.org/ for more details on JSON
string currentKey=null;
Stack objectStack = new Stack(); // objects in JSON can be nested so we need to keep a track of this
Hashtable jsondata = new Hashtable(); // the hashtable to be returned
try
{
// iterate through the serialised stream of tokens and store at the right depth in the hashtable
// the top level hashtable may contain more nested hashtables within it each containing an objects representation
for (int i=0;i<JSON.Length; i++)
{
// Console.WriteLine(""+JSON[i]);
switch(JSON[i])
{
case '{':
// create hashtable and add it to the stack or array if we are populating one, we can have a lot of nested objects in JSON
Hashtable currentObject = new Hashtable();
if(objectStack.Count==0) // the stack should only be empty for the first outer object
{
objectStack.Push(jsondata);
}
else if(objectStack.Peek().ToString()=="System.Collections.ArrayList")
{
// add it to the parent array
((ArrayList)objectStack.Peek()).Add(currentObject);
objectStack.Push(currentObject);
}
else
{
// add it to the parent hashtable
((Hashtable)objectStack.Peek()).Add(currentKey,currentObject);
objectStack.Push(currentObject);
}
// clear the key
currentKey=null;
break;
case '}':
// pop the hashtable off the stack
objectStack.Pop();
break;
case '"':// string boundary
string tokenValue="";
i++; // move to next char
// just loop through until the next quote mark storing the string
while(JSON[i]!='"')
{
tokenValue+=JSON[i++];
}
// ok we've got a string, if we've got an array on the top of the stack then we store it
if(objectStack.Peek().ToString()=="System.Collections.ArrayList")
{
((ArrayList)objectStack.Peek()).Add(tokenValue);
}
else if(currentKey==null) // no key stored and its not an array this must be a key so store it
{
currentKey = tokenValue;
}
else
{
// we have a key so lets store this value
((Hashtable)objectStack.Peek()).Add(currentKey,tokenValue);
// now lets clear the key, we're done with it and moving on
currentKey=null;
}
break;
case ':':// key : value separator
// just ignore
break;
case ' ':// spaces
// just ignore
break;
case '[': // array start
ArrayList currentArray = new ArrayList();
if(objectStack.Peek().ToString()=="System.Collections.ArrayList")
{
((ArrayList)objectStack.Peek()).Add(currentArray);
}
else
{
((Hashtable)objectStack.Peek()).Add(currentKey,currentArray);
// clear the key
currentKey=null;
}
objectStack.Push(currentArray);
break;
case ',':// seperator
// just ignore
break;
case ']'://Array end
// pop the array off the stack
objectStack.Pop();
break;
case 't': // we've found a character start not in quotes, it must be a boolean true
if(objectStack.Peek().ToString()=="System.Collections.ArrayList")
{
((ArrayList)objectStack.Peek()).Add(true);
}
else
{
((Hashtable)objectStack.Peek()).Add(currentKey,true);
}
//advance the counter to the letter 'e'
i = i+3;
break;
case 'f': // we've found a character start not in quotes, it must be a boolean false
if(objectStack.Peek().ToString()=="System.Collections.ArrayList")
{
((ArrayList)objectStack.Peek()).Add(false);
}
else
{
((Hashtable)objectStack.Peek()).Add(currentKey,false);
}
//advance the counter to the letter 'e'
i = i+4;
break;
default:
// ok here we're catching all numeric types int,double,long we might want to spit these up mr accurately
// but for now we'll just do them as strings
string numberValue="";
// just loop through until the next known marker quote mark storing the string
while(JSON[i] != '"' && JSON[i] != ',' && JSON[i] != ']' && JSON[i] != '}' && JSON[i] != ' ')
{
numberValue+=""+JSON[i++];
}
i--; // we want to process this caracter that marked the end of this string in the main loop
// ok we've got a string, if we've got an array on the top of the stack then we store it
if(objectStack.Peek().ToString()=="System.Collections.ArrayList")
{
((ArrayList)objectStack.Peek()).Add(numberValue);
}
else
{
// we have a key so lets store this value
((Hashtable)objectStack.Peek()).Add(currentKey,numberValue);
// now lets clear the key, we're done with it and moving on
currentKey=null;
}
break;
}
}
}
catch(Exception)
{
OSSLError("osParseJSON: The JSON string is not valid " + JSON);
}
return jsondata;
}
}
}

4
OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
View File

@ -24,7 +24,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System.Collections;
namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
{
public interface IOSSL_Api
@ -71,5 +71,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
string osGetScriptEngineName();
void osSetParcelMediaTime(double time);
Hashtable osParseJSON(string JSON);
}
}

5
OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
View File

@ -219,5 +219,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
{
m_OSSL_Functions.osSetParcelMediaTime(time);
}
public Hashtable osParseJSON(string JSON)
{
return m_OSSL_Functions.osParseJSON(JSON);
}
}
}

2
OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
View File

@ -474,7 +474,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
if (data.EventName == "control")
{
int held = ((LSL_Types.LSLInteger)data.Params[1]).value;
int changed= ((LSL_Types.LSLInteger)data.Params[2]).value;
// int changed = ((LSL_Types.LSLInteger)data.Params[2]).value;
// If the last message was a 0 (nothing held)
// and this one is also nothing held, drop it