public LexicalComponent BuildComponent()
{
LexicalComponent component = null;
_lexeme = "";
var currentState = 0;
var continueAnalysis = true;
while (continueAnalysis)
{
#region State 0
if (currentState == 0)
{
ReadNextCharacter();
IgnoreWhitespaces();
if (CurrentCharacterIsDigit())
{
currentState = 57;
Concatenate();
}
else if (CurrentCharacterIsEqual())
{
currentState = 22;
Concatenate();
}
else if (CurrentCharacterIsGreaterThan())
{
currentState = 39;
Concatenate();
}
else if (CurrentCharacterIsLessThan())
{
currentState = 44;
Concatenate();
}
else if (CurrentCharacterIsExclamationMark())
{
currentState = 48;
Concatenate();
}
else if (_currentCharacter.ToLower() == "s")
{
currentState = 1;
Concatenate();
}
else if (_currentCharacter.ToLower() == "c")
{
currentState = 7;
Concatenate();
}
else if (_currentCharacter.ToLower() == "f")
{
currentState = 12;
Concatenate();
}
else if (_currentCharacter.ToLower() == "t")
{
currentState = 16;
Concatenate();
}
else if (_currentCharacter.ToLower() == "w")
{
currentState = 24;
Concatenate();
}
else if (CurrentCharacterIsSinglequote())
{
currentState = 30;
Concatenate();
}
else if (_currentCharacter.ToLower() == "a")
{
currentState = 33;
Concatenate();
}
else if (_currentCharacter.ToLower() == "d")
{
currentState = 40;
Concatenate();
}
else if (_currentCharacter.ToLower() == "o")
{
currentState = 45;
Concatenate();
}
else if (CurrentCharacterIsComma())
{
currentState = 84;
Concatenate();
}
else if (CurrentCharacterIsEndOfLine())
{
currentState = 38;
Concatenate();
}
else if (CurrentCharacterIsEndOfFile())
{
currentState = 32;
}
else
{
currentState = 71;
}
}
#endregion
#region State 1
else if (currentState == 1)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "e")
{
currentState = 2;
Concatenate();
}
else
{
currentState = 72;
}
}
#endregion
#region State 2
else if (currentState == 2)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "l")
{
currentState = 3;
Concatenate();
}
else
{
currentState = 72;
}
}
#endregion
#region State 3
else if (currentState == 3)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "e")
{
currentState = 4;
Concatenate();
}
else
{
currentState = 72;
}
}
#endregion
#region State 4
else if (currentState == 4)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "c")
{
currentState = 5;
Concatenate();
}
else
{
currentState = 72;
}
}
#endregion
#region State 5
else if (currentState == 5)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "t")
{
currentState = 6;
Concatenate();
}
else
{
currentState = 72;
}
}
#endregion
#region State 6 - Return SELECT
else if (currentState == 6)
{
component = LexicalComponent.CreateSymbol(Category.Select, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 7
else if (currentState == 7)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "a")
{
currentState = 8;
Concatenate();
}
else
{
currentState = 81;
}
}
#endregion
#region State 8
else if (currentState == 8)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "m")
{
currentState = 9;
Concatenate();
}
else
{
currentState = 81;
}
}
#endregion
#region State 9
else if (currentState == 9)
{
ReadNextCharacter();
if (CurrentCharacterIsUnderscore())
{
currentState = 10;
Concatenate();
}
else
{
currentState = 81;
}
}
#endregion
#region State 10
else if (currentState == 10)
{
ReadNextCharacter();
if (CurrentCharacterIsLetterOrDigit() || CurrentCharacterIsUnderscore())
{
currentState = 10;
Concatenate();
}
else
{
currentState = 11;
}
}
#endregion
#region State 11 - Return Field
else if (currentState == 11)
{
MovePointerBackward();
component = LexicalComponent.CreateSymbol(Category.Field, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 12
else if (currentState == 12)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "r")
{
currentState = 13;
Concatenate();
}
else
{
currentState = 73;
}
}
#endregion
#region State 13
else if (currentState == 13)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "o")
{
currentState = 14;
Concatenate();
}
else
{
currentState = 73;
}
}
#endregion
#region State 14
else if (currentState == 14)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "m")
{
currentState = 15;
Concatenate();
}
else
{
currentState = 73;
}
}
#endregion
#region State 15 - Return From
else if (currentState == 15)
{
component = LexicalComponent.CreateSymbol(Category.From, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 16
else if (currentState == 16)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "a")
{
currentState = 17;
Concatenate();
}
else
{
currentState = 80;
}
}
#endregion
#region State 17
else if (currentState == 17)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "b")
{
currentState = 18;
Concatenate();
}
else
{
currentState = 80;
}
}
#endregion
#region State 18
else if (currentState == 18)
{
ReadNextCharacter();
if (CurrentCharacterIsUnderscore())
{
currentState = 19;
Concatenate();
}
else
{
currentState = 80;
}
}
#endregion
#region State 19
else if (currentState == 19)
{
ReadNextCharacter();
if (CurrentCharacterIsLetterOrDigit() || CurrentCharacterIsUnderscore())
{
currentState = 19;
Concatenate();
}
else
{
currentState = 20;
}
}
#endregion
#region State 20 - Return Table
else if (currentState == 20)
{
MovePointerBackward();
component = LexicalComponent.CreateSymbol(Category.Table, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 22 - Return Equal to
else if (currentState == 22)
{
component = LexicalComponent.CreateSymbol(Category.EqualTo, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 24
else if (currentState == 24)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "h")
{
currentState = 25;
Concatenate();
}
else
{
currentState = 74;
}
}
#endregion
#region State 25
else if (currentState == 25)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "e")
{
currentState = 26;
Concatenate();
}
else
{
currentState = 74;
}
}
#endregion
#region State 26
else if (currentState == 26)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "r")
{
currentState = 27;
Concatenate();
}
else
{
currentState = 74;
}
}
#endregion
#region State 27
else if (currentState == 27)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "e")
{
currentState = 28;
Concatenate();
}
else
{
currentState = 74;
}
}
#endregion
#region State 28 - Return Where
else if (currentState == 28)
{
component = LexicalComponent.CreateSymbol(Category.Where, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 30
else if (currentState == 30)
{
ReadNextCharacter();
if (CurrentCharacterIsSinglequote())
{
currentState = 31;
Concatenate();
}
else if (!CurrentCharacterIsEndOfFile() || !CurrentCharacterIsEndOfLine())
{
currentState = 30;
Concatenate();
}
else if (CurrentCharacterIsEndOfLine())
{
currentState = 69;
}
else
{
currentState = 70;
}
}
#endregion
#region State 31 - Return Literal
else if (currentState == 31)
{
component = LexicalComponent.CreateSymbol(Category.Literal, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 32 - Return End of File
else if (currentState == 32)
{
component = LexicalComponent.CreateSymbol(Category.EndOfFile, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 33
else if (currentState == 33)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "n")
{
currentState = 34;
Concatenate();
}
else if (_currentCharacter.ToLower() == "s")
{
currentState = 35;
Concatenate();
}
else
{
currentState = 75;
}
}
#endregion
#region State 34
else if (currentState == 34)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "d")
{
currentState = 37;
Concatenate();
}
else
{
currentState = 75;
}
}
#endregion
#region State 35
else if (currentState == 35)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "c")
{
currentState = 36;
Concatenate();
}
else
{
currentState = 76;
}
}
#endregion
#region State 36 - Return ASC
else if (currentState == 36)
{
component = LexicalComponent.CreateSymbol(Category.Asc, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 37 - Return AND
else if (currentState == 37)
{
component = LexicalComponent.CreateSymbol(Category.And, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 38
else if (currentState == 38)
{
LoadNewLine();
currentState = 0;
}
#endregion
#region State 39
else if (currentState == 39)
{
ReadNextCharacter();
if (CurrentCharacterIsEqual())
{
currentState = 63;
Concatenate();
}
else
{
currentState = 64;
}
}
#endregion
#region State 40
else if (currentState == 40)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "e")
{
currentState = 41;
Concatenate();
}
else
{
currentState = 77;
}
}
#endregion
#region State 41
else if (currentState == 41)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "s")
{
currentState = 42;
Concatenate();
}
else
{
currentState = 77;
}
}
#endregion
#region State 42
else if (currentState == 42)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "c")
{
currentState = 43;
Concatenate();
}
else
{
currentState = 77;
}
}
#endregion
#region State 43 - Return DESC
else if (currentState == 43)
{
component = LexicalComponent.CreateSymbol(Category.Desc, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 44
else if (currentState == 44)
{
ReadNextCharacter();
if (CurrentCharacterIsGreaterThan())
{
currentState = 60;
Concatenate();
}
else if (CurrentCharacterIsEqual())
{
currentState = 61;
Concatenate();
}
else
{
currentState = 62;
}
}
#endregion
#region State 45
else if (currentState == 45)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "r")
{
currentState = 46;
Concatenate();
}
else
{
currentState = 78;
}
}
#endregion
#region State 46
else if (currentState == 46)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "d")
{
currentState = 49;
Concatenate();
}
else
{
currentState = 47;
}
}
#endregion
#region State 47 - Return OR
else if (currentState == 47)
{
MovePointerBackward();
component = LexicalComponent.CreateSymbol(Category.Or, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
#endregion
#region State 48
else if (currentState == 48)
{
ReadNextCharacter();
if (CurrentCharacterIsEqual())
{
currentState = 65;
Concatenate();
}
else
{
currentState = 82;
}
}
#endregion
#region State 49
else if (currentState == 49)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "e")
{
currentState = 50;
Concatenate();
}
else
{
currentState = 79;
}
}
#endregion
#region State 50
else if (currentState == 50)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "r")
{
currentState = 51;
Concatenate();
}
else
{
currentState = 79;
}
}
#endregion
#region State 51
else if (currentState == 51)
{
ReadNextCharacter();
if (_currentCharacter == " ")
{
currentState = 52;
Concatenate();
}
else
{
currentState = 79;
}
}
#endregion
#region State 52
else if (currentState == 52)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "b")
{
currentState = 53;
Concatenate();
}
else
{
currentState = 79;
}
}
#endregion
#region State 53
else if (currentState == 53)
{
ReadNextCharacter();
if (_currentCharacter.ToLower() == "y")
{
currentState = 54;
Concatenate();
}
else
{
currentState = 79;
}
}
#endregion
else if (currentState == 54)
{
component = LexicalComponent.CreateSymbol(Category.Order_by, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 57)
{
ReadNextCharacter();
if (CurrentCharacterIsDigit())
{
currentState = 57;
Concatenate();
}
else if (_currentCharacter == ".")
{
currentState = 66;
Concatenate();
}
else
{
currentState = 58;
}
}
else if (currentState == 58)
{
component = LexicalComponent.CreateSymbol(Category.Integer, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 60)
{
component = LexicalComponent.CreateSymbol(Category.DifferentThan, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 61)
{
component = LexicalComponent.CreateSymbol(Category.LessThanOrEqualTo, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 62)
{
MovePointerBackward();
component = LexicalComponent.CreateSymbol(Category.LessThan, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 63)
{
component = LexicalComponent.CreateSymbol(Category.GreaterThanOrEqualTo, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 64)
{
MovePointerBackward();
component = LexicalComponent.CreateSymbol(Category.GreaterThan, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 65)
{
component = LexicalComponent.CreateSymbol(Category.DifferentThan, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 66)
{
ReadNextCharacter();
if (CurrentCharacterIsDigit())
{
currentState = 67;
Concatenate();
}
else
{
currentState = 83;
}
}
else if (currentState == 67)
{
ReadNextCharacter();
if (CurrentCharacterIsDigit())
{
currentState = 67;
Concatenate();
}
else
{
currentState = 68;
}
}
else if (currentState == 68)
{
MovePointerBackward();
component = LexicalComponent.CreateSymbol(Category.Decimal, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 69)
{
LoadNewLine();
currentState = 0;
}
else if (currentState == 70)
{
component = LexicalComponent.CreateSymbol(Category.EndOfFile, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else if (currentState == 72)
{
component = LexicalComponent.CreateDummy(Category.Select, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid Select", "Invalid Select ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 73)
{
component = LexicalComponent.CreateDummy(Category.From, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid From", "Invalid From ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 74)
{
component = LexicalComponent.CreateDummy(Category.Where, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid Where", "Invalid Where ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 75)
{
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Error lexical", "Invalid symbol entered ", "Make sure the symbols entered are valid");
ErrorHandler.ErrorHandler.Report(error);
throw new Exception("Se ha presentado un error léxico que tiene el proceso, por favor validar la consola de errores");
}
else if (currentState == 76)
{
component = LexicalComponent.CreateDummy(Category.Asc, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid Asc", "Invalid Asc ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 77)
{
component = LexicalComponent.CreateDummy(Category.Desc, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid Desc", "Invalid Desc ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 78)
{
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Error lexical", "Invalid symbol entered ", "Make sure the symbols entered are valid");
ErrorHandler.ErrorHandler.Report(error);
throw new Exception("Se ha presentado un error léxico que tiene el proceso, por favor validar la consola de errores");
}
else if (currentState == 79)
{
component = LexicalComponent.CreateDummy(Category.Order_by, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid ORDER BY", "Invalid ORDER BY ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 80)
{
component = LexicalComponent.CreateDummy(Category.Table, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid table", "Invalid table ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 81)
{
component = LexicalComponent.CreateDummy(Category.Field, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid field", "Invalid field ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 82)
{
component = LexicalComponent.CreateDummy(Category.DifferentThan, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid diferent than", "Invalid different than ", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 83)
{
component = LexicalComponent.CreateDummy(Category.Decimal, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
var error = Error.CreateLexicalError(
_lexeme,
_currentLineNumber,
_pointer - _lexeme.Length,
_pointer - 1,
"Invalid decimal", "Invalid decimal number", "Use a dot");
MasterTable.Add(component);
ErrorHandler.ErrorHandler.Report(error);
continueAnalysis = false;
}
else if (currentState == 84)
{
component = LexicalComponent.CreateSymbol(Category.Separator, _lexeme, _currentLineNumber, _pointer - _lexeme.Length, _pointer - 1);
MasterTable.Add(component);
continueAnalysis = false;
}
else
{
throw new Exception("Programa invalido");
}
}
return(component);
}
