// check 2 value is equal ////////////////////////////////////////////////////////////////////////////////////////////////////
static public bool IsEqual(VarInfo var1, VarInfo var2)
{
if (var1.isNull || var2.isNull)
{
return(false);
}
if (var1.type != var2.type)
{
return(false);
}
switch (var1.type)
{
case DataType.FA_Boolean:
{
return(var1.toCS_bool() == var2.toCS_bool());
}
case DataType.FA_String:
{
return(var1.toCS_String() == var2.toCS_String());
}
case DataType.FA_Number:
{
const double epsilon = 1e-9;
return(Math.Abs(var1.toCS_Double() - var2.toCS_Double()) <= epsilon);
}
}
return(false);
}
static public VarInfo XorNum(List <VarInfo> parameters)
{
if (parameters.Count == 0)
{
return(VarInfo.NullVal);
}
int temp = parameters[0].toCS_Int();
foreach (var parameter in parameters)
{
try
{
if (parameter.type == DataType.FA_Number && !parameter.isNull)
{
temp ^= parameter.toCS_Int();
}
else
{
return(VarInfo.NullVal);
}
}
catch
{
return(VarInfo.NullVal);
}
}
VarInfo result = new VarInfo(temp);
return(result);
}
static public VarInfo IsNumber(List <VarInfo> parameters)
{
if (parameters.Count != 1)
{
return(VarInfo.NullVal);
}
if (parameters[0].isNull)
{
return(VarInfo.NullVal);
}
bool temp;
string value = parameters[0].value;
try
{
double.Parse(value);
temp = true;
}
catch
{
temp = false;
}
VarInfo result = new VarInfo(temp);
return(result);
}
public VarInfo HandleExpression(string expression, out string ErrorReport)
{
VarInfo temp = VarInfo.NullVal;
expression = RemoveSpacing(expression);
ErrorReport = "";
if (expression == "")
{
return(VarInfo.NullVal);
}
temp = HandleConst(expression);
if (!temp.isNull)
{
return(temp);
}
temp = HandleVariable(expression);
if (!temp.isNull)
{
return(temp);
}
temp = HandleFunction(expression);
if (!temp.isNull)
{
return(temp);
}
ErrorReport = "Error: Illegal Expression";
return(VarInfo.NullVal);
}
public VarInfo(VarInfo instance)
{
this.type = instance.type;
this.value = instance.value;
this.value = StandardizeValue(this.value, this.type);
this.isNull = instance.isNull;
}
static public VarInfo Average(List <VarInfo> parameters)
{
double temp = 0;
foreach (var parameter in parameters)
{
if (parameter.type == DataType.FA_Number && !parameter.isNull)
{
temp += parameter.toCS_Double();
}
else
{
return(VarInfo.NullVal);
}
}
if (parameters.Count == 0)
{
return(VarInfo.NullVal);
}
temp /= parameters.Count;
VarInfo result = new VarInfo(temp);
return(result);
}
static public VarInfo Random(List <VarInfo> parameters)
{
if (CheckParameterTypes(parameters, "NN"))
{
int x = (int)parameters[0].toCS_Double();
int y = (int)parameters[1].toCS_Double();
double temp;
try
{
temp = random.Next(x, y + 1);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
if (CheckParameterTypes(parameters, "N"))
{
int x = (int)parameters[0].toCS_Double();
double temp;
try
{
temp = random.Next(x);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
if (CheckParameterTypes(parameters, ""))
{
double temp;
try
{
temp = random.Next();
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
return(VarInfo.NullVal);
}
private bool ResetFlow()
{
State = FlowRunState.Start;
LastBlockResult = null;
CurrentBlock = null;
FlowData.ClearData();
return(true);
}
private bool ValidValue()
{
if (dataType == DataType.FA_Boolean)
{
return(true);
}
string value = tbValue.Text;
return(VarInfo.ValidValue(value, dataType));
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Handle blocks /////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// handle blocks behavior and return value of blocks if available
private VarInfo HandleBlock(FlowBlock CurrentBlock, out string ErrorReport)
{
FlowMap map = form.ActiveMdiChild as FlowMap;
VarInfo BlockResult = null;
ErrorReport = "";
MainInterface.Instance.UserLog("--> " + CurrentBlock.Kind.ToString() + " Block: " + CurrentBlock.Text, LogType.Normal);
switch (CurrentBlock.Kind)
{
case BlockType.Start:
{
BlockResult = HandleStartBlock(CurrentBlock, out ErrorReport);
break;
}
case BlockType.End:
{
BlockResult = HandleEndBlock(CurrentBlock, out ErrorReport);
break;
}
case BlockType.Process:
{
BlockResult = HandleProcessBlock(CurrentBlock, out ErrorReport);
break;
}
case BlockType.Input:
{
BlockResult = HandleInputBlock(CurrentBlock, out ErrorReport);
break;
}
case BlockType.Output:
{
BlockResult = HandleOutputblock(CurrentBlock, out ErrorReport);
break;
}
case BlockType.Condition:
{
BlockResult = HandleConditionBlock(CurrentBlock, out ErrorReport);
break;
}
}
UpdateWatch();
return(BlockResult);
}
public FlowBlock GetNextBlock(FlowBlock CurrentBlock, VarInfo blockResult, out string ErrorReport)
{
if( CurrentBlock == null )
return GetStartBlock(out ErrorReport);
ErrorReport = "";
if(CurrentBlock.Kind == BlockType.End)
{
return null;
}
List<IGoLink> OutLinks = new List<IGoLink>();
OutLinks.Clear();
foreach(IGoLink link in CurrentBlock.Links)
{
if( (link.FromNode as FlowBlock).GetHashCode() == CurrentBlock.GetHashCode() )
OutLinks.Add(link);
}
if( OutLinks.Count < 1 )
{
ErrorReport = "Error: No out-link is found";
return null;
}
if(CurrentBlock.Kind == BlockType.Condition)
{
OutLinks[0] = PickLinkFromConditionBlock(OutLinks, blockResult, out ErrorReport);
if( ErrorReport != "" )
return null;
}
else
if( OutLinks.Count > 1 )
{
ErrorReport = "Error: Regular blocks should only have ONE out-link";
return null;
}
if(OutLinks[0] != null)
{
return OutLinks[0].ToNode as FlowBlock;
}
else
{
// already handled before ;)
return null;
}
}
private VarInfo HandleConditionBlock(FlowBlock CurrentBlock, out string ErrorReport)
{
FlowMap map = form.ActiveMdiChild as FlowMap;
ErrorReport = "";
string expression = CurrentBlock.Text;
VarInfo varRes = FlowData.HandleExpression(expression, out ErrorReport);
if (ErrorReport != "")
{
return(null);
}
MainInterface.Instance.UserLog("Value: " + CurrentBlock.Text + " = " + varRes.value, LogType.Normal);
return(varRes);
}
private VarInfo HandleProcessBlock(FlowBlock CurrentBlock, out string ErrorReport)
{
FlowMap map = form.ActiveMdiChild as FlowMap;
ErrorReport = "";
string expression = CurrentBlock.Text;
if (CurrentBlock.Text == "")
{
ErrorReport = "Blank expression";
return(null);
}
// handle deletion
if (CurrentBlock.Text[0] == '~')
{
FlowData.HandleDeletion(expression, out ErrorReport);
if (ErrorReport != "")
{
return(null);
}
MainInterface.Instance.UserLog("Deletion: " + expression.Remove(0, 1), LogType.Normal);
return(null);
}
VarInfo varRes = FlowData.HandleAssignment(expression, out ErrorReport);
if (ErrorReport != "")
{
return(null);
}
if (!varRes.isNull)
{
MainInterface.Instance.UserLog("Assignment: " + CurrentBlock.Text + " = " + varRes.value, LogType.Normal);
}
else
{
MainInterface.Instance.UserLog("Declaration: " + CurrentBlock.Text, LogType.Normal);
}
return(varRes);
}
static public VarInfo ToString(List <VarInfo> parameters)
{
string x = parameters[0].toCS_String();
var temp = "";
try
{
temp = x;
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
//------------------------------------------------------------------------------------------------------------------------------------------------------
// declare variables -----------------------------------------------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------------------------------------------------------------------
public void DeclareVariable(string varName, DataType dataType, out string ErrorReport)
{
if (!ValidName(varName))
{
ErrorReport = "Error: Invalid variable name: " + varName;
return;
}
if (Exist(varName))
{
ErrorReport = "Error: Duplicate variable name: " + varName;
return;
}
ErrorReport = "";
VarInfo temp = new VarInfo(dataType, "", true);
UserVariables.Add(varName, temp);
}
static public VarInfo SubStr(List <VarInfo> parameters)
{
if (CheckParameterTypes(parameters, "SNN"))
{
string x = parameters[0].toCS_String();
int a = (int)parameters[1].toCS_Double();
int b = (int)parameters[2].toCS_Double();
string temp;
try
{
temp = x.Substring(a, b);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
if (CheckParameterTypes(parameters, "SN"))
{
string x = parameters[0].toCS_String();
int a = (int)parameters[1].toCS_Double();
string temp;
try
{
temp = x.Substring(a);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
return(VarInfo.NullVal);
}
private VarInfo HandleInputBlock(FlowBlock CurrentBlock, out string ErrorReport)
{
FlowMap map = form.ActiveMdiChild as FlowMap;
ErrorReport = "";
string varAndType = CurrentBlock.Text;
string varName;
FlowData.HandleDeclaration(varAndType, out varName, out ErrorReport);
if (ErrorReport != "")
{
return(null);
}
DataType varType = FlowData.GetVarInfo(varName, out ErrorReport).type;
if (ErrorReport != "")
{
return(null);
}
frmScan InputForm = new frmScan(varName, varType);
DialogResult dialogResult = InputForm.ShowDialog();
if (dialogResult == DialogResult.Cancel)
{
ErrorReport = "Error: User input was canceled";
return(null);
}
VarInfo InputVarInfo = InputForm.VarInfoResult;
FlowData.AssignVariable(varName, InputVarInfo, out ErrorReport);
if (ErrorReport != "")
{
return(null);
}
MainInterface.Instance.UserLog("Input: " + varName + " = " + InputVarInfo.value, LogType.Normal);
return(null);
}
static public VarInfo IsDecEq(List <VarInfo> parameters)
{
bool temp = true;
for (int i = 0; i < parameters.Count - 1; i++)
{
if (parameters[i].type == DataType.FA_Number && parameters[i + 1].type == DataType.FA_Number)
{
temp = temp && (parameters[i].toCS_Double() >= parameters[i + 1].toCS_Double());
}
else
{
return(VarInfo.NullVal);
}
}
VarInfo result = new VarInfo(temp);
return(result);
}
static public VarInfo LCM(List <VarInfo> parameters)
{
int temp = parameters[0].toCS_Int();
foreach (var parameter in parameters)
{
if (parameter.type == DataType.FA_Number && !parameter.isNull)
{
temp = additional_LCM(temp, parameter.toCS_Int());
}
else
{
return(VarInfo.NullVal);
}
}
VarInfo result = new VarInfo(temp);
return(result);
}
public void AssignVariable(string varName, VarInfo varInfo, out string ErrorReport)
{
if (!Exist(varName))
{
ErrorReport = "Error: Not declared variable name: " + varName;
return;
}
VarInfo temp = UserVariables[varName];
if (varInfo.type != temp.type)
{
ErrorReport = "Error: Wrong expected data type: " + varName;
return;
}
ErrorReport = "";
temp = new VarInfo(varInfo);
UserVariables[varName] = temp;
}
static public VarInfo Xor(List <VarInfo> parameters)
{
bool temp = false;
foreach (var parameter in parameters)
{
if (parameter.type == DataType.FA_Boolean && !parameter.isNull)
{
temp = temp ^ parameter.toCS_bool();
}
else
{
return(VarInfo.NullVal);
}
}
VarInfo result = new VarInfo(temp);
return(result);
}
static public VarInfo IsEqual(List <VarInfo> parameters)
{
if (parameters.Count == 2)
{
bool temp;
try
{
temp = VarInfo.IsEqual(parameters[0], parameters[1]);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
return(VarInfo.NullVal);
}
static public VarInfo Concat(List <VarInfo> parameters)
{
string temp = "";
foreach (var parameter in parameters)
{
if (!parameter.isNull)
{
temp += parameter.toCS_String();
}
else
{
return(VarInfo.NullVal);
}
}
VarInfo result = new VarInfo(temp);
return(result);
}
static public VarInfo Max(List <VarInfo> parameters)
{
double temp = parameters[0].toCS_Double();
foreach (var parameter in parameters)
{
if (parameter.type == DataType.FA_Number && !parameter.isNull)
{
temp = Math.Max(temp, parameter.toCS_Double());
}
else
{
return(VarInfo.NullVal);
}
}
VarInfo result = new VarInfo(temp);
return(result);
}
static public VarInfo Log(List <VarInfo> parameters)
{
if (CheckParameterTypes(parameters, "NN"))
{
double x = parameters[0].toCS_Double();
double y = parameters[1].toCS_Double();
double temp;
try
{
temp = Math.Log(y, x);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
if (CheckParameterTypes(parameters, "N"))
{
double x = parameters[0].toCS_Double();
double temp;
try
{
temp = (double)Math.Log10(x);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
return(VarInfo.NullVal);
}
static public VarInfo Round(List <VarInfo> parameters)
{
if (CheckParameterTypes(parameters, "NN"))
{
double x = parameters[0].toCS_Double();
int y = (int)Math.Floor(parameters[1].toCS_Double());
double temp;
try
{
temp = (double)Math.Round(x, y);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
if (CheckParameterTypes(parameters, "N"))
{
double x = parameters[0].toCS_Double();
double temp;
try
{
temp = (double)Math.Round(x);
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
return(VarInfo.NullVal);
}
static public VarInfo RandomFloat(List <VarInfo> parameters)
{
if (CheckParameterTypes(parameters, ""))
{
double temp;
try
{
temp = random.NextDouble();
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
return(VarInfo.NullVal);
}
static public VarInfo RandomPick(List <VarInfo> parameters)
{
if (parameters.Count == 0)
{
return(VarInfo.NullVal);
}
int index = random.Next(parameters.Count);
foreach (var parameter in parameters)
{
if (parameter.type != parameters[0].type || parameter.isNull)
{
return(VarInfo.NullVal);
}
}
VarInfo result = new VarInfo(parameters[index]);
return(result);
}
//------------------------------------------------------------------------------------------------------------------------------------------------------
// assign variables ------------------------------------------------------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------------------------------------------------------------------------
public void AssignVariable(string varName, DataType dataType, string value, out string ErrorReport)
{
if (!Exist(varName))
{
ErrorReport = "Error: Not declared variable name: " + varName;
return;
}
VarInfo temp = UserVariables[varName];
if (!VarInfo.ValidValue(value, temp.type))
{
ErrorReport = "Error: Wrong expected data type: " + varName;
return;
}
ErrorReport = "";
temp.value = value;
temp.isNull = false;
UserVariables[varName] = temp;
}
static public VarInfo Not(List <VarInfo> parameters)
{
if (CheckParameterTypes(parameters, "B"))
{
bool x = parameters[0].toCS_bool();
bool temp;
try
{
temp = !x;
}
catch
{
return(VarInfo.NullVal);
}
VarInfo result = new VarInfo(temp);
return(result);
}
return(VarInfo.NullVal);
}