public static bool TryParseNode(Genero4glParser parser, out ReportBlockNode defNode, IModuleResult containingModule)
{
defNode = null;
bool result = false;
AccessModifier?accMod = null;
string accModToken = null;
if (parser.PeekToken(TokenKind.PublicKeyword))
{
accMod = AccessModifier.Public;
accModToken = parser.PeekToken().Value.ToString();
}
else if (parser.PeekToken(TokenKind.PrivateKeyword))
{
accMod = AccessModifier.Private;
accModToken = parser.PeekToken().Value.ToString();
}
uint lookAheadBy = (uint)(accMod.HasValue ? 2 : 1);
if (parser.PeekToken(TokenKind.ReportKeyword, lookAheadBy))
{
result = true;
defNode = new ReportBlockNode();
if (accMod.HasValue)
{
parser.NextToken();
defNode.AccessModifier = accMod.Value;
}
else
{
defNode.AccessModifier = AccessModifier.Public;
}
parser.NextToken(); // move past the Function keyword
defNode.StartIndex = parser.Token.Span.Start;
defNode.OrderVarNames = new List <FglNameExpression>();
// get the name
if (parser.PeekToken(TokenCategory.Keyword) || parser.PeekToken(TokenCategory.Identifier))
{
parser.NextToken();
defNode.Name = parser.Token.Token.Value.ToString();
defNode.LocationIndex = parser.Token.Span.Start;
defNode.DecoratorEnd = parser.Token.Span.End;
}
else
{
parser.ReportSyntaxError("A report must have a name.");
}
if (!parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.ReportSyntaxError("A report must specify zero or more parameters in the form: ([param1][,...])");
}
else
{
parser.NextToken();
}
// get the parameters
while (parser.PeekToken(TokenCategory.Keyword) || parser.PeekToken(TokenCategory.Identifier))
{
parser.NextToken();
string errMsg;
if (!defNode.AddArgument(parser.Token, out errMsg))
{
parser.ReportSyntaxError(errMsg);
}
if (parser.PeekToken(TokenKind.Comma))
{
parser.NextToken();
}
// TODO: probably need to handle "end" "function" case...won't right now
}
if (!parser.PeekToken(TokenKind.RightParenthesis))
{
parser.ReportSyntaxError("A report must specify zero or more parameters in the form: ([param1][,...])");
}
else
{
parser.NextToken();
}
List <List <TokenKind> > breakSequences =
new List <List <TokenKind> >(Genero4glAst.ValidStatementKeywords
.Where(x => x != TokenKind.EndKeyword && x != TokenKind.ReportKeyword)
.Select(x => new List <TokenKind> {
x
}))
{
new List <TokenKind> {
TokenKind.EndKeyword, TokenKind.ReportKeyword
},
new List <TokenKind> {
TokenKind.OutputKeyword
},
new List <TokenKind> {
TokenKind.OrderKeyword
},
new List <TokenKind> {
TokenKind.FormatKeyword
}
};
while (!parser.PeekToken(TokenKind.EndOfFile) &&
!(parser.PeekToken(TokenKind.EndKeyword) && parser.PeekToken(TokenKind.ReportKeyword, 2)))
{
DefineNode defineNode;
TypeDefNode typeNode;
ConstantDefNode constNode;
bool matchedBreakSequence = false;
bool inDefSection = true;
switch (parser.PeekToken().Kind)
{
case TokenKind.TypeKeyword:
{
if (TypeDefNode.TryParseNode(parser, out typeNode, out matchedBreakSequence, breakSequences) && typeNode != null)
{
defNode.Children.Add(typeNode.StartIndex, typeNode);
foreach (var def in typeNode.GetDefinitions())
{
def.Scope = "local type";
if (!defNode.Types.ContainsKey(def.Name))
{
defNode.Types.Add(def.Name, def);
}
else
{
parser.ReportSyntaxError(def.LocationIndex, def.LocationIndex + def.Name.Length, string.Format("Type {0} defined more than once.", def.Name), Severity.Error);
}
}
}
break;
}
case TokenKind.ConstantKeyword:
{
if (ConstantDefNode.TryParseNode(parser, out constNode, out matchedBreakSequence, breakSequences) && constNode != null)
{
defNode.Children.Add(constNode.StartIndex, constNode);
foreach (var def in constNode.GetDefinitions())
{
def.Scope = "local constant";
if (!defNode.Constants.ContainsKey(def.Name))
{
defNode.Constants.Add(def.Name, def);
}
else
{
parser.ReportSyntaxError(def.LocationIndex, def.LocationIndex + def.Name.Length, string.Format("Constant {0} defined more than once.", def.Name), Severity.Error);
}
}
}
break;
}
case TokenKind.DefineKeyword:
{
if (DefineNode.TryParseDefine(parser, out defineNode, out matchedBreakSequence, breakSequences, defNode.BindArgument) && defineNode != null)
{
defNode.Children.Add(defineNode.StartIndex, defineNode);
foreach (var def in defineNode.GetDefinitions())
{
foreach (var vardef in def.VariableDefinitions)
{
vardef.Scope = "local variable";
if (!defNode.Variables.ContainsKey(vardef.Name))
{
defNode.Variables.Add(vardef.Name, vardef);
}
else
{
parser.ReportSyntaxError(vardef.LocationIndex, vardef.LocationIndex + vardef.Name.Length, string.Format("Variable {0} defined more than once.", vardef.Name), Severity.Error);
}
}
}
}
break;
}
default:
inDefSection = false;
break;
}
if (!inDefSection)
{
break;
}
}
if (parser.PeekToken(TokenKind.OutputKeyword))
{
parser.NextToken();
bool isValid = true;
ExpressionNode expr;
while (isValid)
{
if (parser.PeekToken(TokenKind.ReportKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.ToKeyword))
{
parser.NextToken();
switch (parser.PeekToken().Kind)
{
case TokenKind.ScreenKeyword:
case TokenKind.PrinterKeyword:
parser.NextToken();
break;
case TokenKind.FileKeyword:
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.OutputFilename = expr;
}
else
{
parser.ReportSyntaxError("Invalid filename found in report.");
}
break;
case TokenKind.PipeKeyword:
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.OutputProgram = expr;
}
else
{
parser.ReportSyntaxError("Invalid program name found in report.");
}
if (parser.PeekToken(TokenKind.InKeyword))
{
parser.NextToken();
if ((parser.PeekToken(TokenKind.FormKeyword) || parser.PeekToken(TokenKind.LineKeyword)) &&
parser.PeekToken(TokenKind.ModeKeyword, 2))
{
parser.NextToken();
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected \"form mode\" or \"line mode\" in report.");
}
}
break;
default:
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.OutputFilename = expr;
}
else
{
parser.ReportSyntaxError("Invalid filename found in report.");
}
break;
}
}
else
{
parser.ReportSyntaxError("Expected \"to\" keyword in report.");
}
}
switch (parser.PeekToken().Kind)
{
case TokenKind.WithKeyword:
parser.NextToken();
break;
case TokenKind.LeftKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.MarginKeyword))
{
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.MarginLeft = expr;
}
else
{
parser.ReportSyntaxError("Invalid margin value found in report.");
}
}
else
{
parser.ReportSyntaxError("Expected \"margin\" keyword in report.");
}
break;
case TokenKind.RightKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.MarginKeyword))
{
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.MarginRight = expr;
}
else
{
parser.ReportSyntaxError("Invalid margin value found in report.");
}
}
else
{
parser.ReportSyntaxError("Expected \"margin\" keyword in report.");
}
break;
case TokenKind.BottomKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.MarginKeyword))
{
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.MarginBottom = expr;
}
else
{
parser.ReportSyntaxError("Invalid margin value found in report.");
}
}
else
{
parser.ReportSyntaxError("Expected \"margin\" keyword in report.");
}
break;
case TokenKind.PageKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.LengthKeyword))
{
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.PageLength = expr;
}
else
{
parser.ReportSyntaxError("Invalid page length value found in report.");
}
}
else
{
parser.ReportSyntaxError("Expected \"length\" keyword in report.");
}
break;
case TokenKind.TopKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.OfKeyword) && parser.PeekToken(TokenKind.PageKeyword, 2))
{
parser.NextToken();
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.TopOfPage = expr;
}
else
{
parser.ReportSyntaxError("Invalid top of page value found in report.");
}
}
else if (parser.PeekToken(TokenKind.MarginKeyword))
{
parser.NextToken();
if (FglExpressionNode.TryGetExpressionNode(parser, out expr))
{
defNode.MarginTop = expr;
}
else
{
parser.ReportSyntaxError("Invalid margin value found in report.");
}
}
else
{
parser.ReportSyntaxError("Invalid token found in report.");
}
break;
default:
isValid = false;
parser.ReportSyntaxError("Invalid token found in output section of report.");
break;
}
if (parser.PeekToken(TokenKind.OrderKeyword) ||
parser.PeekToken(TokenKind.FormatKeyword) ||
parser.PeekToken(TokenKind.EndOfFile) ||
(parser.PeekToken(TokenKind.EndKeyword) && parser.PeekToken(TokenKind.ReportKeyword, 2)))
{
break;
}
}
}
if (parser.PeekToken(TokenKind.OrderKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.ExternalKeyword))
{
parser.NextToken();
}
if (parser.PeekToken(TokenKind.ByKeyword))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected \"by\" keyword in order section of report.");
}
// collect report variables
FglNameExpression varName;
while (FglNameExpression.TryParseNode(parser, out varName))
{
defNode.OrderVarNames.Add(varName);
if (parser.PeekToken(TokenKind.AscKeyword) || parser.PeekToken(TokenKind.DescKeyword))
{
parser.NextToken();
}
if (parser.PeekToken(TokenKind.Comma))
{
parser.NextToken();
}
else
{
break;
}
}
}
List <TokenKind> validExits = new List <TokenKind> {
TokenKind.ProgramKeyword, TokenKind.ReportKeyword
};
ReportFormatSection rfs;
while (ReportFormatSection.TryParseNode(parser, out rfs, containingModule, defNode, null, defNode.StoreReturnStatement,
defNode.AddLimitedScopeVariable, validExits) && rfs != null)
{
defNode.Children.Add(rfs.StartIndex, rfs);
if (parser.PeekToken(TokenKind.EndOfFile) ||
(parser.PeekToken(TokenKind.EndKeyword) && parser.PeekToken(TokenKind.ReportKeyword, 2)))
{
break;
}
}
if (!parser.PeekToken(TokenKind.EndOfFile))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.ReportKeyword))
{
parser.NextToken();
defNode.EndIndex = parser.Token.Span.End;
defNode.IsComplete = true;
defNode.AddLimitedScopeVariable(Genero4glAst.PagenoVariable, defNode.StartIndex, defNode.EndIndex);
}
else
{
parser.ReportSyntaxError(parser.Token.Span.Start, parser.Token.Span.End, "Invalid end of report definition.");
}
}
else
{
parser.ReportSyntaxError("Unexpected end of report definition");
}
}
return(result);
}
public static bool TryParseNode(Genero4glParser parser, out ReportFormatSection node,
IModuleResult containingModule,
ReportBlockNode reportNode,
Action <PrepareStatement> prepStatementBinder = null,
Func <ReturnStatement, ParserResult> returnStatementBinder = null,
Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null,
List <TokenKind> validExitKeywords = null,
IEnumerable <ContextStatementFactory> contextStatementFactories = null)
{
node = null;
bool result = false;
if (parser.PeekToken(TokenKind.FormatKeyword))
{
parser.NextToken();
result = true;
node = new ReportFormatSection();
node.StartIndex = parser.Token.Span.Start;
bool isValid = true;
while (isValid)
{
if (parser.PeekToken(TokenKind.EveryKeyword) && parser.PeekToken(TokenKind.RowKeyword, 2))
{
parser.NextToken();
parser.NextToken();
node._canOutline = false;
}
else
{
node._canOutline = true;
switch (parser.PeekToken().Kind)
{
case TokenKind.FirstKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.PageKeyword) && parser.PeekToken(TokenKind.HeaderKeyword, 2))
{
parser.NextToken();
parser.NextToken();
if (node.DecoratorEnd == 0)
{
node.DecoratorEnd = parser.Token.Span.End;
}
}
else
{
parser.ReportSyntaxError("Expected \"page header\" in format section of report.");
}
break;
case TokenKind.PageKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.HeaderKeyword))
{
parser.NextToken();
if (node.DecoratorEnd == 0)
{
node.DecoratorEnd = parser.Token.Span.End;
}
}
else if (parser.PeekToken(TokenKind.TrailerKeyword))
{
parser.NextToken();
if (node.DecoratorEnd == 0)
{
node.DecoratorEnd = parser.Token.Span.End;
}
}
else
{
parser.ReportSyntaxError("Expected \"header\" or \"trailer\" in format section of report.");
}
break;
case TokenKind.OnKeyword:
parser.NextToken();
if ((parser.PeekToken(TokenKind.EveryKeyword) || parser.PeekToken(TokenKind.LastKeyword)) &&
parser.PeekToken(TokenKind.RowKeyword, 2))
{
parser.NextToken();
parser.NextToken();
if (node.DecoratorEnd == 0)
{
node.DecoratorEnd = parser.Token.Span.End;
}
}
else
{
parser.ReportSyntaxError("Expected \"every row\" or \"last row\" in format section of report.");
}
break;
case TokenKind.BeforeKeyword:
case TokenKind.AfterKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.GroupKeyword) &&
parser.PeekToken(TokenKind.OfKeyword, 2))
{
parser.NextToken();
parser.NextToken();
// TODO: get report variable
FglNameExpression name;
if (FglNameExpression.TryParseNode(parser, out name))
{
node.ReportVariable = name;
}
else
{
parser.ReportSyntaxError("Invalid name expression found in format section of report.");
}
if (node.DecoratorEnd == 0)
{
node.DecoratorEnd = parser.Token.Span.End;
}
}
else
{
parser.ReportSyntaxError("Expected \"group of\" in format section of report.");
}
break;
default:
isValid = false;
break;
}
if (isValid)
{
// collect statements
FglStatement rptStmt;
while (ReportStatementFactory.TryGetStatement(parser, out rptStmt, containingModule, reportNode, new List <Func <PrepareStatement, bool> >(), returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords) && rptStmt != null)
{
if (rptStmt.StartIndex < 0)
{
continue;
}
node.Children.Add(rptStmt.StartIndex, rptStmt);
}
}
}
node.EndIndex = parser.Token.Span.End;
}
}
return(result);
}
