public List <RowInTable> CreateTable()
{
int position = 0;
int row = 0;
foreach (Rule currRule in grammarList)
{
foreach (string element in currRule.ruleСomposition)
{
RowInTable newRow = new RowInTable();
AddNameToRow(ref newRow, element);
AddIsEndToRow(ref newRow, currRule, element);
AddGuideSetToRow(ref newRow, currRule, element);
AddErrorTransit(ref newRow, currRule, element, position, row);
AddIsShiftToRow(ref newRow, currRule, element);
AddIsStackToRow(ref newRow, currRule, element);
AddGoToToRow(ref newRow, currRule, element, position);
position++;
table.Add(newRow);
}
row++;
}
return(table);
}
private void AddIsEndToRow(ref RowInTable newRow, Rule currRule, string element)
{
newRow.isEnd = false;
bool isEndInMainRule = (element == END) && (currRule.ruleName == "<Start>");
if (isEndInMainRule)
{
newRow.isEnd = true;
}
}
private void AddIsShiftToRow(ref RowInTable newRow, Rule currRule, string element)
{
newRow.isShift = false;
string elementType = DefineStringType(element);
if (elementType == NOT_TERMINAL)
{
newRow.isShift = true;
}
}
private void AddIsStackToRow(ref RowInTable newRow, Rule currRule, string element)
{
newRow.isStack = false;
string elementType = DefineStringType(element);
int elementIndex = currRule.ruleСomposition.FindIndex(x => x == element);
int elementAmount = currRule.ruleСomposition.Count();
bool isEndInComPosition = (elementIndex == (elementAmount - 1));
if (!isEndInComPosition && (elementType == TERMINAL))
{
newRow.isStack = true;
}
}
private void AddErrorTransit(ref RowInTable newRow, Rule currRule, string element, int position, int row)
{
int elementIndex = currRule.ruleСomposition.FindIndex(x => x == element);
int elementAmount = currRule.ruleСomposition.Count();
bool isFirstElement = (elementIndex == 0);
List <int> currList = indexOfTerminalList.Find(x => x.terminal == currRule.ruleName).rowIndex;
int indexInTerminalList = currList.FindIndex(x => x == row);
bool isLastRuleForTerminate = (indexInTerminalList == currList.Count() - 1);
if (isFirstElement && !isLastRuleForTerminate)
{
newRow.errorTransit = position + elementAmount;
}
}
private void AddGoToToRow(ref RowInTable newRow, Rule currRule, string element, int position)
{
string elementType = DefineStringType(element);
int elementIndex = currRule.ruleСomposition.FindIndex(x => x == element);
int elementAmount = currRule.ruleСomposition.Count();
bool isEndInComPosition = (elementIndex == (elementAmount - 1));
if ((elementType == NOT_TERMINAL) && (!isEndInComPosition))
{
newRow.goTo = position + 1;
}
if (elementType == TERMINAL)
{
List <int> currList = indexOfTerminalList.Find(x => x.terminal == element).startIndex;
newRow.goTo = currList[0];
}
}
private void AddGuideSetToRow(ref RowInTable newRow, Rule currRule, string element)
{
string elementType = DefineStringType(element);
switch (elementType)
{
case TERMINAL:
newRow.guideSet = guideSet.Find(x => x.ruleName == element).set;
break;
case NOT_TERMINAL:
newRow.guideSet = new List <string>()
{
element
};
break;
case EMPTY:
newRow.guideSet = currRule.guideSet;
break;
}
}
public void PrintTable()
{
Console.WriteLine("-----------------------------------------------------------------------------------------------------------");
for (int i = 0; i < table.Count; i++)
{
RowInTable row = table[i];
Console.Write(" №:" + i);
Console.Write(" Name:" + row.name);
Console.Write(" IsEnd:" + row.isEnd);
Console.Write(" GuideSet:");
foreach (string el in row.guideSet)
{
Console.Write(el + ", ");
}
Console.Write(" ErrorTransit:" + row.errorTransit);
Console.Write(" IsShift:" + row.isShift);
Console.Write(" IsStack:" + row.isStack);
Console.WriteLine(" GoTo:" + row.goTo);
}
Console.WriteLine("-----------------------------------------------------------------------------------------------------------");
}
private void AddNameToRow(ref RowInTable newRow, string element)
{
newRow.name = element;
}
private void AnalyzeEmptyString(ref List <RowInTable> table)
{
RowInTable currRow = table[0];
isOk = currRow.guideSet.Contains("[end]");
}