private void GetString(DFA <int, LexicalFunction> dfa)
{
int endIndex = dfa.CurrentToken;
Lexical lexical = (Lexical)dfa;
lexical.OutputToken.Row = lexical.Row;
lexical.OutputToken.Col = lexical.beginIndex - lexical.LastLineStart;
lexical.OutputToken.Text = lexical.InputText.Substring(lexical.beginIndex + 1, endIndex - lexical.beginIndex - 2);
if (lexical.DoubleQuotationCount > 0)
{
lexical.OutputToken.Text = lexical.OutputToken.Text.Replace("''", "'");
lexical.DoubleQuotationCount = 0;
}
lexical.beginIndex = endIndex;
}
private void GetText(DFA <int, LexicalFunction> dfa)
{
int endIndex = dfa.CurrentToken;
Lexical lexical = (Lexical)dfa;
lexical.OutputToken.Row = lexical.Row;
lexical.OutputToken.Col = lexical.beginIndex - lexical.LastLineStart;
if (endIndex == lexical.InputText.Length)
{
lexical.OutputToken.Text = lexical.InputText.Substring(lexical.beginIndex,
endIndex - lexical.beginIndex);
}
else
{
lexical.OutputToken.Text = lexical.InputText.Substring(lexical.beginIndex,
endIndex - lexical.beginIndex + 1);
}
lexical.beginIndex = endIndex + 1;
}
public override void DoThings(int action, DFA <int, LexicalFunction> dfa)
{
Lexical lexical = (Lexical)dfa;
switch (Func)
{
case LexicalFunction.OutputIdentifier:
lexical.OutputToken = new Lexical.Token();
GetTextElse(dfa);
if (!Lexical.KeywordsTbl.TryGetValue(lexical.OutputToken.Text.ToUpper(),
out lexical.OutputToken.SyntaxType))
{
lexical.OutputToken.SyntaxType = SyntaxType.Identifer;
}
break;
case LexicalFunction.DoSpace:
DoSpace(action, dfa);
break;
case LexicalFunction.OutputSpace:
lexical.OutputToken = new Lexical.Token();
GetTextElse(dfa);
lexical.OutputToken.SyntaxType = SyntaxType.Space;
break;
case LexicalFunction.OutputNumeric:
lexical.OutputToken = new Lexical.Token();
GetTextElse(dfa);
lexical.OutputToken.SyntaxType = SyntaxType.Numeric;
break;
case LexicalFunction.OutputComment:
lexical.OutputToken = new Lexical.Token();
GetText(dfa);
if (lexical.OutputToken.Text[0] == '-')
{
lexical.Row++;
lexical.LastLineStart = lexical.CurrentToken + 1;
}
lexical.OutputToken.SyntaxType = SyntaxType.Comment;
break;
case LexicalFunction.OutputArithmeticOpr:
lexical.OutputToken = new Lexical.Token();
GetTextElse(dfa);
lexical.OutputToken.SyntaxType = Lexical.ArithmeticTbl[lexical.OutputToken.Text];
break;
case LexicalFunction.DoubleQuotation:
lexical.DoubleQuotationCount++;
break;
case LexicalFunction.OutputString:
lexical.OutputToken = new Lexical.Token();
GetString(dfa);
lexical.OutputToken.SyntaxType = SyntaxType.String;
break;
case LexicalFunction.OutputComparisonOpr:
lexical.OutputToken = new Lexical.Token();
GetTextElse(dfa);
lexical.OutputToken.SyntaxType = Lexical.ComparisonOprTbl[lexical.OutputToken.Text];
break;
case LexicalFunction.OutputBracketSymbol:
lexical.OutputToken = new Lexical.Token();
GetText(dfa);
lexical.OutputToken.SyntaxType = Lexical.BracketSymbolTbl[lexical.OutputToken.Text];
break;
}
}