private void Error(string nonterm, AlphaTexSymbols expected, bool symbolError = true)
{
if (symbolError)
{
throw new AlphaTexException(_curChPos, nonterm, expected, _sy);
}
throw new AlphaTexException(_curChPos, nonterm, expected, expected, _syData);
}
private void Error(string nonterm, AlphaTexSymbols expected, bool symbolError = true)
{
if (symbolError)
{
throw new AlphaTexException(_curChPos, nonterm, expected, _sy);
}
throw new AlphaTexException(_curChPos, nonterm, expected, expected, _syData);
}
public AlphaTexException(int position, string nonTerm, AlphaTexSymbols expected, AlphaTexSymbols symbol, object symbolData = null)
{
Position = position;
NonTerm = nonTerm;
Expected = expected;
Symbol = symbol;
SymbolData = symbolData;
}
public AlphaTexException(int position, string nonTerm, AlphaTexSymbols expected, AlphaTexSymbols symbol, object symbolData = null)
{
Position = position;
NonTerm = nonTerm;
Expected = expected;
Symbol = symbol;
SymbolData = symbolData;
}
public AlphaTexException(int position, string nonTerm, AlphaTexSymbols expected, AlphaTexSymbols symbol, object symbolData = null)
: base(BuildMessage(position, nonTerm, expected, symbol, symbolData))
{
Position = position;
NonTerm = nonTerm;
Expected = expected;
Symbol = symbol;
SymbolData = symbolData;
}
private static string BuildMessage(int position, string nonTerm, AlphaTexSymbols expected, AlphaTexSymbols symbol, object symbolData)
{
if (symbolData == null)
{
return("MalFormed AlphaTex: @" + position + ": Error on block " + nonTerm +
", expected a " + expected + " found a " + symbol);
}
else
{
return("MalFormed AlphaTex: @" + position + ": Error on block " + nonTerm +
", invalid value: " + symbolData);
}
}
private void Error(string nonterm, AlphaTexSymbols expected, bool symbolError = true)
{
AlphaTexException e;
if (symbolError)
{
e = new AlphaTexException(_curChPos, nonterm, expected, _sy);
}
else
{
e = new AlphaTexException(_curChPos, nonterm, expected, expected, _syData);
}
Logger.Error(Name, e.Message);
throw e;
}
public AlphaTexException(int position, string nonTerm, AlphaTexSymbols expected, AlphaTexSymbols symbol, object symbolData = null)
: base("")
{
Position = position;
NonTerm = nonTerm;
Expected = expected;
Symbol = symbol;
SymbolData = symbolData;
if (SymbolData == null)
{
Description = "MalFormed AlphaTex: @" + Position + ": Error on block " + NonTerm +
", expected a " + Expected + " found a " + Symbol;
}
else
{
Description = "MalFormed AlphaTex: @" + Position + ": Error on block " + NonTerm +
", invalid value: " + SymbolData;
}
}
/// <summary>
/// Reads the next terminal symbol.
/// </summary>
private void NewSy()
{
_sy = AlphaTexSymbols.No;
do
{
if (_ch == Eof)
{
_sy = AlphaTexSymbols.Eof;
}
else if (Std.IsWhiteSpace(_ch))
{
// skip whitespaces
NextChar();
}
else if (_ch == 0x2F /* / */)
{
NextChar();
if (_ch == 0x2F /* / */)
{
// single line comment
while (_ch != 0x0D /* \r */ && _ch != 0x0A /* \n */ && _ch != Eof)
{
NextChar();
}
}
else if (_ch == 0x2A /* * */)
{
// multiline comment
while (_ch != Eof)
{
if (_ch == 0x2A /* * */) // possible end
{
NextChar();
if (_ch == 0x2F /* / */)
{
NextChar();
break;
}
}
else
{
NextChar();
}
}
}
else
{
Error("symbol", AlphaTexSymbols.String, false);
}
}
else if (_ch == 0x22 /* " */ || _ch == 0x27 /* ' */)
{
NextChar();
var s = new StringBuilder();
_sy = AlphaTexSymbols.String;
while (_ch != 0x22 /* " */ && _ch != 0x27 /* ' */ && _ch != Eof)
{
s.AppendChar(_ch);
NextChar();
}
_syData = s.ToString();
NextChar();
}
else if (_ch == 0x2D /* - */) // negative number
{
// is number?
if (_allowNegatives && IsDigit(_ch))
{
var number = ReadNumber();
_sy = AlphaTexSymbols.Number;
_syData = number;
}
else
{
_sy = AlphaTexSymbols.String;
_syData = ReadName();
}
}
else if (_ch == 0x2E /* . */)
{
_sy = AlphaTexSymbols.Dot;
NextChar();
}
else if (_ch == 0x3A /* : */)
{
_sy = AlphaTexSymbols.DoubleDot;
NextChar();
}
else if (_ch == 0x28 /* ( */)
{
_sy = AlphaTexSymbols.LParensis;
NextChar();
}
else if (_ch == 0x5C /* \ */)
{
NextChar();
var name = ReadName();
_sy = AlphaTexSymbols.MetaCommand;
_syData = name;
}
else if (_ch == 0x29 /* ) */)
{
_sy = AlphaTexSymbols.RParensis;
NextChar();
}
else if (_ch == 0x7B /* { */)
{
_sy = AlphaTexSymbols.LBrace;
NextChar();
}
else if (_ch == 0x7D /* } */)
{
_sy = AlphaTexSymbols.RBrace;
NextChar();
}
else if (_ch == 0x7C /* | */)
{
_sy = AlphaTexSymbols.Pipe;
NextChar();
}
else if (_ch == 0x2A /* * */)
{
_sy = AlphaTexSymbols.Multiply;
NextChar();
}
else if (IsDigit(_ch))
{
var number = ReadNumber();
_sy = AlphaTexSymbols.Number;
_syData = number;
}
else if (IsLetter(_ch))
{
var name = ReadName();
if (TuningParser.IsTuning(name))
{
_sy = AlphaTexSymbols.Tuning;
_syData = name.ToLower();
}
else
{
_sy = AlphaTexSymbols.String;
_syData = name;
}
}
else
{
Error("symbol", AlphaTexSymbols.String, false);
}
} while (_sy == AlphaTexSymbols.No);
}
/// <summary>
/// Reads the next terminal symbol.
/// </summary>
private void NewSy()
{
_sy = AlphaTexSymbols.No;
do
{
if (_ch == Eof)
{
_sy = AlphaTexSymbols.Eof;
}
else if (Std.IsWhiteSpace(_ch))
{
// skip whitespaces
NextChar();
}
else if (_ch == 0x2F /* / */)
{
NextChar();
if (_ch == 0x2F /* / */)
{
// single line comment
while (_ch != 0x0D /* \r */ && _ch != 0x0A /* \n */ && _ch != Eof)
{
NextChar();
}
}
else if (_ch == 0x2A /* * */)
{
// multiline comment
while (_ch != Eof)
{
if (_ch == 0x2A /* * */) // possible end
{
NextChar();
if (_ch == 0x2F /* / */)
{
NextChar();
break;
}
}
else
{
NextChar();
}
}
}
else
{
Error("symbol", AlphaTexSymbols.String, false);
}
}
else if (_ch == 0x22 /* " */ || _ch == 0x27 /* ' */)
{
var startChar = _ch;
NextChar();
var s = new StringBuilder();
_sy = AlphaTexSymbols.String;
while (_ch != startChar && _ch != Eof)
{
s.AppendChar(_ch);
NextChar();
}
_syData = s.ToString();
NextChar();
}
else if (_ch == 0x2D /* - */) // negative number
{
// is number?
if (_allowNegatives && IsDigit(_ch))
{
var number = ReadNumber();
_sy = AlphaTexSymbols.Number;
_syData = number;
}
else
{
_sy = AlphaTexSymbols.String;
_syData = ReadName();
}
}
else if (_ch == 0x2E /* . */)
{
_sy = AlphaTexSymbols.Dot;
NextChar();
}
else if (_ch == 0x3A /* : */)
{
_sy = AlphaTexSymbols.DoubleDot;
NextChar();
}
else if (_ch == 0x28 /* ( */)
{
_sy = AlphaTexSymbols.LParensis;
NextChar();
}
else if (_ch == 0x5C /* \ */)
{
NextChar();
var name = ReadName();
_sy = AlphaTexSymbols.MetaCommand;
_syData = name;
}
else if (_ch == 0x29 /* ) */)
{
_sy = AlphaTexSymbols.RParensis;
NextChar();
}
else if (_ch == 0x7B /* { */)
{
_sy = AlphaTexSymbols.LBrace;
NextChar();
}
else if (_ch == 0x7D /* } */)
{
_sy = AlphaTexSymbols.RBrace;
NextChar();
}
else if (_ch == 0x7C /* | */)
{
_sy = AlphaTexSymbols.Pipe;
NextChar();
}
else if (_ch == 0x2A /* * */)
{
_sy = AlphaTexSymbols.Multiply;
NextChar();
}
else if (IsDigit(_ch))
{
var number = ReadNumber();
_sy = AlphaTexSymbols.Number;
_syData = number;
}
else if (IsLetter(_ch))
{
var name = ReadName();
var tuning = TuningParser.Parse(name);
if (tuning != null)
{
_sy = AlphaTexSymbols.Tuning;
_syData = tuning;
}
else
{
_sy = AlphaTexSymbols.String;
_syData = name;
}
}
else
{
Error("symbol", AlphaTexSymbols.String, false);
}
} while (_sy == AlphaTexSymbols.No);
}
