public List <GPCSymbolObject> Parser()
{
int end = 0;
int i = 0;
GPCSymbolItem rCurSymbol = null;
GPCSymbolElement rCurElem = null;
GPCSymbolObject rCurSymbolObj = null;
List <GPCSymbolObject> rSymbolObjs = new List <GPCSymbolObject>();
Stack <GPCSymbolItem> rNodeStack = new Stack <GPCSymbolItem>();
while (i < this.originData.Length)
{
if (!string.IsNullOrEmpty(LexicalAnalysis.isSpecialSymbol(originData, i, ref end)) || !string.IsNullOrEmpty(LexicalAnalysis.isComment(originData, i, ref end)))
{
i = end;
continue;
}
rCurSymbol = buildSymbolItem(rCurSymbol, i, ref end);
if (rCurSymbol != null)
{
switch (rCurSymbol.Type)
{
case GPCSymbolType.ObjStart:
rCurSymbolObj = new GPCSymbolObject();
rCurSymbolObj.Head = new GPCSymbolElement(rCurElem.Identifer, rCurElem.Args);
rCurSymbolObj.Bodies = new List <GPCSymbolElement>();
break;
case GPCSymbolType.ObjEnd:
rSymbolObjs.Add(rCurSymbolObj);
rCurSymbolObj = null;
break;
case GPCSymbolType.ArgsStart:
GPCSymbolItem rPeekNode = rNodeStack.Pop();
rCurElem = new GPCSymbolElement();
rCurElem.Identifer = rPeekNode;
rCurElem.Args = new List <GPCSymbolItem>();
break;
case GPCSymbolType.ArgsEnd:
GPCSymbolItem rPeekNode1 = rNodeStack.Pop();
rCurElem.Args.Add(rPeekNode1);
break;
case GPCSymbolType.ArgsSplit:
GPCSymbolItem rPeekNode2 = rNodeStack.Pop();
rCurElem.Args.Add(rPeekNode2);
break;
case GPCSymbolType.ElementSplit:
rCurSymbolObj.Bodies.Add(rCurElem);
rCurElem = null;
break;
case GPCSymbolType.Identifer:
rNodeStack.Push(rCurSymbol);
break;
case GPCSymbolType.Arg:
rNodeStack.Push(rCurSymbol);
break;
default:
break;
}
i = end;
continue;
}
i++;
}
return(rSymbolObjs);
}
private GPCSymbolItem buildSymbolItem(GPCSymbolItem rCurSymbol, int begin, ref int end)
{
if (originData[begin] == '{')
{
end = begin + 1;
return(new GPCSymbolItem()
{
Type = GPCSymbolType.ObjStart, Value = "{"
});
}
else if (originData[begin] == '}')
{
end = begin + 1;
return(new GPCSymbolItem()
{
Type = GPCSymbolType.ObjEnd, Value = "}"
});
}
else if (originData[begin] == '(')
{
end = begin + 1;
return(new GPCSymbolItem()
{
Type = GPCSymbolType.ArgsStart, Value = "("
});
}
else if (originData[begin] == ')')
{
end = begin + 1;
return(new GPCSymbolItem()
{
Type = GPCSymbolType.ArgsEnd, Value = ")"
});
}
else if (originData[begin] == ',')
{
end = begin + 1;
return(new GPCSymbolItem()
{
Type = GPCSymbolType.ArgsSplit, Value = ","
});
}
else if (originData[begin] == ';')
{
end = begin + 1;
return(new GPCSymbolItem()
{
Type = GPCSymbolType.ElementSplit, Value = ";"
});
}
string tempWord = "";
if (!string.IsNullOrEmpty(tempWord = LexicalAnalysis.IsNotKeywordIdentifer(originData, begin, ref end)))
{
return(new GPCSymbolItem()
{
Type = GPCSymbolType.Identifer, Value = tempWord
});
}
if (!string.IsNullOrEmpty(tempWord = LexicalAnalysis.isString(originData, begin, ref end)))
{
tempWord = tempWord.Substring(1, tempWord.Length - 2);
return(new GPCSymbolItem()
{
Type = GPCSymbolType.Arg, Value = tempWord
});
}
if (!string.IsNullOrEmpty(tempWord = LexicalAnalysis.isKeyword(originData, begin, ref end)))
{
return(new GPCSymbolItem()
{
Type = GPCSymbolType.Arg, Value = tempWord
});
}
if (!string.IsNullOrEmpty(tempWord = LexicalAnalysis.isDigit(originData, begin, ref end)))
{
return(new GPCSymbolItem()
{
Type = GPCSymbolType.Arg, Value = tempWord
});
}
return(null);
}
public GPCSymbolElement(GPCSymbolItem rIdentifer, List <GPCSymbolItem> rArgs)
{
this.Identifer = rIdentifer;
this.Args = new List <GPCSymbolItem>(rArgs);
}