private TerminalToken GetLookahead()
{
if (lookahead != null)
{
return(lookahead);
}
do
{
TerminalToken token = tokenizer.RetrieveToken();
if (token.Symbol is SymbolCommentLine)
{
if (!ProcessCommentLine(token))
{
continueParsing = false;
}
}
else if (token.Symbol is SymbolCommentStart)
{
if (!ProcessCommentStart(token))
{
continueParsing = false;
}
}
else if (token.Symbol is SymbolWhiteSpace)
{
if (!ProcessWhiteSpace(token))
{
continueParsing = false;
}
}
else if (token.Symbol is SymbolError)
{
if (!ProcessError(token))
{
continueParsing = false;
}
}
else
{
lookahead = token;
}
if (!continueParsing)
{
break;
}
} while (lookahead == null);
if ((lookahead != null) && (OnTokenRead != null))
{
TokenReadEventArgs args = new TokenReadEventArgs(lookahead);
OnTokenRead(this, args);
if (args.Continue == false)
{
continueParsing = false;
lookahead = null;
}
}
return(lookahead);
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
try
{
args.Token.UserObject = CreateObject(args.Token);
}
catch (Exception e)
{
args.Continue = false;
//todo: Report message to UI?
}
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
try
{
args.Token.UserObject = CreateObject(args.Token);
}
catch (Exception e)
{
args.Continue = false;
MainForm.mainForm.WriteResult(e.Message);
}
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
args.Token.UserObject = CreateObject(args.Token);
int tmp = args.Token.Symbol.Id;
string lexem = args.Token.ToString();
string token = ((SymbolConstants)args.Token.Symbol.Id).ToString().Substring(7);
//string token = args.Token.Symbol.Name.ToString();
dt.Rows.Add(lexem, token);
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
try
{
args.Token.UserObject = CreateObject(args.Token);
}
catch (Exception e)
{
_mainForm.setLeituraState(false);
_mainForm.setSyntaxState(false);
MessageBox.Show(e.ToString());
args.Continue = false;
//todo: Report message to UI?
}
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
SymbolConstants symb;
for (symb = 0; (int)symb < 68; symb++)
{
if ((int)symb == args.Token.Symbol.Id && (int)symb != 0)
{
ListViewItem lst = new ListViewItem();
lst.SubItems.Add(args.Token.Text);
lst.SubItems.Add(symb.ToString());
lstlex.Items.Add(lst);
break;
}
}
}
private TerminalToken GetLookahead()
{
if (lookahead != null)
{
return lookahead;
}
do
{
TerminalToken token = tokenizer.RetrieveToken();
if (token.Symbol is SymbolCommentLine)
{
if (!ProcessCommentLine(token))
continueParsing = false;
}
else if (token.Symbol is SymbolCommentStart)
{
if (!ProcessCommenStart(token))
continueParsing = false;
}
else if (token.Symbol is SymbolWhiteSpace)
{
if (!ProcessWhiteSpace(token))
continueParsing = false;
}
else if (token.Symbol is SymbolError)
{
if (!ProcessError(token))
continueParsing = false;
}
else
{
lookahead = token;
}
if (!continueParsing)
break;
} while (lookahead == null);
if ((lookahead != null) && (OnTokenRead != null))
{
TokenReadEventArgs args = new TokenReadEventArgs(lookahead);
OnTokenRead(this, args);
if (args.Continue == false)
{
continueParsing = false;
lookahead = null;
}
}
return lookahead;
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
try
{
args.Token.UserObject = CreateObject(args.Token);
}
catch (Exception e)
{
args.Continue = false;
Console.WriteLine(args.Token.ToString());
//todo: Report message to UI?
}
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
try
{
args.Token.UserObject = CreateObject(args.Token);
}
catch (ApplicationException ex)
{
args.Continue = false;
tokenStack.Clear();
Logger.Log(DateTime.Now + ": " + ex.Message);
throw ex;
}
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs Args)
{
Args.Token.UserObject = CreateObject(Args.Token);
Label1.Text += Args.Token.Text + " ==> " + ((SymbolConstants)Args.Token.Symbol.Id) + "\n";
}
/// <summary>
/// Event handler for the action of reading a token.
/// </summary>
/// <param name="parser">parser that is the source of this event</param>
/// <param name="args">event arguments</param>
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
AddViewItem("Token Read",
args.Token.Location,
args.Token.Symbol.ToString(),
StringUtil.ShowEscapeChars(args.Token.Text),"",0);
}
private void lalrParser_OnTokenRead(LALRParser parser, TokenReadEventArgs e)
{
// Pass these names to the WIQLBuilder. It can translate them using its own lookup table
// in to the appropriate field name.
// Huge switch statement for each token type. Originally this was going to be transformed
// into a type per symbol, however leaving the WiqlBuilder to deal with it seems a lot simpler.
switch (e.Token.Symbol.Name)
{
//
// Matched field identifiers
//
case "Project":
_comparisonType = FieldComparison.Project;
_fieldName = e.Token.Symbol.Name;
break;
case "CreatedBy":
case "AssignedTo":
case "ResolvedBy":
_comparisonType = FieldComparison.User;
_fieldName = e.Token.Symbol.Name;
break;
case "CreatedOn":
case "ResolvedOn":
_comparisonType = FieldComparison.Date;
_fieldName = e.Token.Symbol.Name;
break;
case "Description":
_comparisonType = FieldComparison.Contains;
_fieldName = e.Token.Symbol.Name;
break;
case "State":
case "Type":
case "Area":
case "Iteration":
_comparisonType = FieldComparison.ExactMatch;
_fieldName = e.Token.Symbol.Name;
break;
//
// OR/NOT
//
case "Or":
_fieldName = "";
_wiqlBuilder.Or();
break;
case "Negate":
_wiqlBuilder.Not();
break;
//
// Strings
//
case "StringLiteral":
// Make sure contains is kept for literals - mainly so the description field works.
if (_comparisonType == FieldComparison.Contains)
_wiqlBuilder.AppendField(_fieldName, e.Token.Text.Replace("\"",""), FieldComparison.Contains);
else
_wiqlBuilder.AppendField(_fieldName, e.Token.Text.Replace("\"", ""), FieldComparison.ExactMatch);
_fieldName = "";
_comparisonType = FieldComparison.Contains;
break;
case "AnyChar":
_wiqlBuilder.AppendField(_fieldName, e.Token.Text,_comparisonType);
_fieldName = "";
_comparisonType = FieldComparison.Contains;
break;
// End of parsing
case "(EOF)":
OnParseComplete(EventArgs.Empty);
break;
default:
// Exception?
throw new NotImplementedException(string.Format("{0} is not supported",e.Token.Symbol.Name));
}
}
private void OnTokenRead(LALRParser argParser, TokenReadEventArgs args)
{
if (endSymbol == 2)
{
TerminalToken eofToken =
new TerminalToken(SymbolCollection.EOF, SymbolCollection.EOF.Name, args.Token.Location);
argParser.lookahead = eofToken;
endSymbol = 3;
return;
}
args.Token.UserObject = CreateObject(args.Token, argParser);
}
private void TokenReadEvent(LALRParser parser, TokenReadEventArgs args)
{
try
{
args.Token.UserObject = CreateObject(args.Token);
}
catch (Exception e)
{
args.Continue = false;
MainForm.mainForm.WriteResult(e.Message);
}
}