static CArg BuildElemToArg(SBuildElem elem, ILogger inLogger)
{
CArg left_arg;
if (elem.Token != null)
{
if (elem.Token.TokenType == ETokenType.Float ||
elem.Token.TokenType == ETokenType.Int ||
elem.Token.TokenType == ETokenType.UInt)
{
left_arg = new CArg_Num(elem.Token.GetFloatValue(), elem.Token.StartLineIndex, elem.Token.EndLineIndex);
}
else if (elem.Token.TokenType == ETokenType.Word)
{
left_arg = new CArg_Var(elem.Token.Text, elem.Token.StartLineIndex, elem.Token.EndLineIndex);
}
else
{
LogError(inLogger, EErrorCode.InvalidArgument, elem.Token);
return(null);
}
}
else if (elem.Op != null)
{
left_arg = new CArg_BinOp(elem.Op);
}
else
{
LogError(inLogger, EErrorCode.InvalidArgument, "Empty SBuildElem");
return(null);
}
return(left_arg);
}
private static KeyValuePair <bool, int> FindCloseBrace(int inStartPos, List <SBuildElem> inList, ILogger inLogger)
{
int bdeep = 0;
for (int i = inStartPos; i < inList.Count; i++)
{
SBuildElem el = inList[i];
if (el.Token != null && el.Token.TokenType == ETokenType.OpenBrace)
{
bdeep++;
}
if (el.Token != null && el.Token.TokenType == ETokenType.CloseBrace)
{
if (bdeep == 0)
{
return(new KeyValuePair <bool, int>(true, i));
}
else
{
bdeep--;
}
}
}
SBuildElem fel = inList[inStartPos];
inLogger.LogError(string.Format("Can't find close bracer from {0} position!", fel.StartLineIndex));
return(new KeyValuePair <bool, int>(false, -1));
}
static List <SBuildElem> ChangeBracers(int inStartPos, int inEndPos, List <SBuildElem> inList, ILogger inLogger)
{
List <SBuildElem> lst = new List <SBuildElem>();
for (int i = inStartPos; i <= inEndPos;)
{
SBuildElem el = inList[i];
if (el.Token != null && el.Token.TokenType == ETokenType.CloseBrace)
{
LogError(inLogger, EErrorCode.InvalidCloseBracer, el.Token);
return(null);
}
else if (el.Token != null && el.Token.TokenType == ETokenType.OpenBrace)
{
KeyValuePair <bool, int> res_close_brace_pos = FindCloseBrace(i + 1, inList, inLogger);
if (!res_close_brace_pos.Key)
{
return(null);
}
KeyValuePair <bool, IMathFunc> res_op;
if (i > inStartPos && inList[i - 1].Token != null && inList[i - 1].Token.TokenType == ETokenType.Word)
{ //func
lst.RemoveAt(lst.Count - 1); //func name
res_op = BuildFunc(inList[i - 1].Token.Text, inList[i - 1].Token.StartLineIndex, i + 1, res_close_brace_pos.Value - 1, inList, inLogger);
}
else
{//simple ( )
res_op = CheckOneOrMany(i + 1, res_close_brace_pos.Value - 1, inList, inLogger);
}
if (!res_op.Key)
{
return(null);
}
if (res_op.Value != null)
{
lst.Add(new SBuildElem(res_op.Value));
}
i = res_close_brace_pos.Value + 1;
}
else
{
lst.Add(inList[i]);
i++;
}
}
return(lst);
}
private static int FindComma(int inStartPos, int inEndPos, List <SBuildElem> inList, ILogger inLogger)
{
for (int i = inStartPos; i <= inEndPos; i++)
{
SBuildElem el = inList[i];
if (el.Token != null && el.Token.TokenType == ETokenType.Comma)
{
return(i);
}
}
return(-1);
}
static KeyValuePair <bool, IMathFunc> BuildTriplet(int inPos, List <SBuildElem> inList, ILogger inLogger)
{
if (inPos <= 0 || inPos >= inList.Count - 1)
{
LogError(inLogger, EErrorCode.InvalidTripletPosition, $"{inList[inPos].StartLineIndex}");
return(new KeyValuePair <bool, IMathFunc>(false, null));
}
EBinOp op_type = EBinOp.Undefined;
SBuildElem el = inList[inPos];
if (el.Token != null)
{
op_type = el.Token.GetBinOp();
}
if (op_type == EBinOp.Undefined)
{
if (el.Token != null)
{
LogError(inLogger, EErrorCode.BinOperationUndefined, el.Token);
}
else
{
LogError(inLogger, EErrorCode.BinOperationUndefined, string.Format("el.Op {0}", el.Op));
}
return(new KeyValuePair <bool, IMathFunc>(false, null));
}
//left
el = inList[inPos - 1];
CArg left_arg = BuildElemToArg(el, inLogger);
//right
el = inList[inPos + 1];
CArg right_arg = BuildElemToArg(el, inLogger);
if (left_arg == null || right_arg == null)
{
return(new KeyValuePair <bool, IMathFunc>(false, null));
}
return(new KeyValuePair <bool, IMathFunc>(true, new CBinOp(op_type, left_arg, right_arg)));
}