internal static DekiScriptExpression Parse(XDoc doc, bool scripted)
{
DekiScriptParser parser = new DekiScriptParser();
var list = new List <DekiScriptExpression>();
var root = (XmlElement)doc.AsXmlNode;
parser.PushNode(root);
parser.Parse(root, list);
var result = parser.TryCatch(list[0], scripted);
parser.PopNode();
if (list.Count != 1)
{
throw new DekiScriptParserException("invalid state: more than one root node in document", Location.None);
}
return(result);
}
private static bool TryParseDekiScriptExpression(string ctor, DekiScriptEnv env, DekiScriptRuntime runtime, ref int i, out string value)
{
string source = ParseExpression(ctor, null, ParseMode.EXPRESSION, false, env, runtime, null, ref i);
if ((i >= ctor.Length) || (ctor[i] != '}'))
{
value = null;
return(false);
}
// try to parse and execute the dekiscript fragment
try {
source = source.Substring(1, source.Length - 2);
DekiScriptExpression dekiscript = DekiScriptParser.Parse(new Location("jem"), source);
DekiScriptLiteral result = runtime.Evaluate(dekiscript, DekiScriptEvalMode.EvaluateSafeMode, env);
value = DekiScriptLibrary.JsonEmit(result.NativeValue);
} catch (Exception e) {
// execution failed; convert exception into a javascript comment
value = "alert(\"ERROR in DekiScript expression:\\n---------------------------\\n\\n\" + " + e.GetCoroutineStackTrace().QuoteString() + ")";
}
return(true);
}
internal static DekiScriptExpression Parse(XDoc doc, bool scripted) {
DekiScriptParser parser = new DekiScriptParser();
var list = new List<DekiScriptExpression>();
var root = (XmlElement)doc.AsXmlNode;
parser.PushNode(root);
parser.Parse(root, list);
var result = parser.TryCatch(list[0], scripted);
parser.PopNode();
if(list.Count != 1) {
throw new DekiScriptParserException("invalid state: more than one root node in document", Location.None);
}
return result;
}