public static bool CheckForPreprocessorNode(Genero4glParser parser, AstNode4gl node)
{
PreprocessorNode preNode;
if (PreprocessorNode.TryParseNode(parser, out preNode) && node != null)
{
// TODO: determine context of the preprocessor via containingNode
if (preNode.Type == PreprocessorType.Include && !string.IsNullOrWhiteSpace(preNode.IncludeFile))
{
if (node.IncludeFiles.ContainsKey(preNode.IncludeFile))
{
node.IncludeFiles[preNode.IncludeFile].Add(preNode);
}
else
{
node.IncludeFiles.Add(preNode.IncludeFile, new List <PreprocessorNode>()
{
preNode
});
}
}
return(true);
}
return(false);
}
public static bool TryParseNode(Genero4glParser parser, out DisplayControlBlock node, IModuleResult containingModule, bool allowNonControlBlocks,
bool isArray,
List <Func <PrepareStatement, bool> > prepStatementBinders,
Func <ReturnStatement, ParserResult> returnStatementBinder = null,
Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null,
List <TokenKind> validExitKeywords = null,
IEnumerable <ContextStatementFactory> contextStatementFactories = null,
HashSet <TokenKind> endKeywords = null)
{
node = new DisplayControlBlock();
bool result = true;
node.KeyNameList = new List <VirtualKey>();
bool isDragAndDrop = false;
switch (parser.PeekToken().Kind)
{
case TokenKind.Ampersand:
{
// handle include file
PreprocessorNode preNode;
PreprocessorNode.TryParseNode(parser, out preNode);
node.StartIndex = -1;
break;
}
case TokenKind.BeforeKeyword:
case TokenKind.AfterKeyword:
{
parser.NextToken();
node.StartIndex = parser.Token.Span.Start;
if (parser.PeekToken(TokenKind.DisplayKeyword))
{
parser.NextToken();
node.Type = DisplayControlBlockType.Display;
}
else if (parser.PeekToken(TokenKind.RowKeyword))
{
parser.NextToken();
node.Type = DisplayControlBlockType.Row;
}
else
{
parser.ReportSyntaxError("Unexpected keyword found in display control block.");
result = false;
}
break;
}
case TokenKind.OnKeyword:
{
parser.NextToken();
node.StartIndex = parser.Token.Span.Start;
switch (parser.PeekToken().Kind)
{
case TokenKind.IdleKeyword:
parser.NextToken();
node.Type = DisplayControlBlockType.Idle;
// get the idle seconds
ExpressionNode idleExpr;
if (FglExpressionNode.TryGetExpressionNode(parser, out idleExpr))
{
node.IdleSeconds = idleExpr;
}
else
{
parser.ReportSyntaxError("Invalid idle-seconds found in display array statement.");
}
break;
case TokenKind.TimerKeyword:
parser.NextToken();
node.Type = DisplayControlBlockType.Timer;
// get the timer seconds
ExpressionNode timerExpr;
if (FglExpressionNode.TryGetExpressionNode(parser, out timerExpr))
{
node.TimerSeconds = timerExpr;
}
else
{
parser.ReportSyntaxError("Invalid timer-seconds found in display array statement.");
}
break;
case TokenKind.ActionKeyword:
parser.NextToken();
node.Type = DisplayControlBlockType.Action;
// get the action name
FglNameExpression actionName;
if (FglNameExpression.TryParseNode(parser, out actionName))
{
node.ActionName = actionName;
}
else
{
parser.ReportSyntaxError("Invalid action-name found in display array statement.");
}
GetActionAttributesDisplayArray(parser);
break;
case TokenKind.KeyKeyword:
parser.NextToken();
node.Type = DisplayControlBlockType.Key;
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
// get the list of key names
VirtualKey keyName;
while (VirtualKey.TryGetKey(parser, out keyName))
{
node.KeyNameList.Add(keyName);
if (!parser.PeekToken(TokenKind.Comma))
{
break;
}
parser.NextToken();
}
if (parser.PeekToken(TokenKind.RightParenthesis))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected right-paren in display array block.");
}
}
else
{
parser.ReportSyntaxError("Expected left-paren in display array block.");
}
break;
case TokenKind.AppendKeyword:
node.Type = DisplayControlBlockType.Append;
parser.NextToken();
GetActionAttributesListmodTriggers(parser);
break;
case TokenKind.InsertKeyword:
node.Type = DisplayControlBlockType.Insert;
parser.NextToken();
GetActionAttributesListmodTriggers(parser);
break;
case TokenKind.UpdateKeyword:
node.Type = DisplayControlBlockType.Update;
parser.NextToken();
GetActionAttributesListmodTriggers(parser);
break;
case TokenKind.DeleteKeyword:
node.Type = DisplayControlBlockType.Delete;
parser.NextToken();
GetActionAttributesListmodTriggers(parser);
break;
case TokenKind.ExpandKeyword:
node.Type = DisplayControlBlockType.Expand;
parser.NextToken();
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
FglNameExpression rowInd;
if (FglNameExpression.TryParseNode(parser, out rowInd))
{
node.RowIndex = rowInd;
}
else
{
parser.ReportSyntaxError("Invalid row-index found in display array statement.");
}
if (parser.PeekToken(TokenKind.RightParenthesis))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected right-paren in display array statement.");
}
}
else
{
parser.ReportSyntaxError("Expected left-paren in display array statement.");
}
break;
case TokenKind.CollapseKeyword:
node.Type = DisplayControlBlockType.Collapse;
parser.NextToken();
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
FglNameExpression rowInd1;
if (FglNameExpression.TryParseNode(parser, out rowInd1))
{
node.RowIndex = rowInd1;
}
else
{
parser.ReportSyntaxError("Invalid row-index found in display array statement.");
}
if (parser.PeekToken(TokenKind.RightParenthesis))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected right-paren in display array statement.");
}
}
else
{
parser.ReportSyntaxError("Expected left-paren in display array statement.");
}
break;
case TokenKind.Drag_EnterKeyword:
node.Type = DisplayControlBlockType.DragEnter;
parser.NextToken();
isDragAndDrop = true;
break;
case TokenKind.Drag_FinishKeyword:
case TokenKind.Drag_FinishedKeyword:
node.Type = DisplayControlBlockType.DragFinish;
parser.NextToken();
isDragAndDrop = true;
break;
case TokenKind.Drag_OverKeyword:
node.Type = DisplayControlBlockType.DragOver;
parser.NextToken();
isDragAndDrop = true;
break;
case TokenKind.Drag_StartKeyword:
node.Type = DisplayControlBlockType.DragStart;
parser.NextToken();
isDragAndDrop = true;
break;
case TokenKind.DropKeyword:
node.Type = DisplayControlBlockType.Drop;
parser.NextToken();
isDragAndDrop = true;
break;
default:
parser.ReportSyntaxError("Unexpected token found in input control block.");
result = false;
break;
}
break;
}
default:
if (!allowNonControlBlocks)
{
result = false;
}
else
{
node.StartIndex = parser.Token.Span.Start;
}
break;
}
if (result && node.StartIndex >= 0)
{
node.DecoratorEnd = parser.Token.Span.End;
if (isDragAndDrop)
{
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
FglNameExpression keyName;
if (FglNameExpression.TryParseNode(parser, out keyName))
{
node.DragAndDropObject = keyName;
}
else
{
parser.ReportSyntaxError("Invalid drag-and-drop object name found in display array statement.");
}
if (parser.PeekToken(TokenKind.RightParenthesis))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected right-paren in input control block.");
}
}
else
{
parser.ReportSyntaxError("Expected left-paren in input control block.");
}
}
// get the dialog statements
FglStatement dispStmt;
prepStatementBinders.Insert(0, node.BindPrepareCursorFromIdentifier);
while (DisplayStatementFactory.TryGetStatement(parser, out dispStmt, isArray, containingModule, prepStatementBinders, returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords) && dispStmt != null)
{
node.Children.Add(dispStmt.StartIndex, dispStmt);
node.EndIndex = dispStmt.EndIndex;
}
prepStatementBinders.RemoveAt(0);
if (node.Type == DisplayControlBlockType.None && node.Children.Count == 0)
{
result = false;
}
}
return(result);
}
public static bool TryParseNode(Genero4glParser parser, out ConstructControlBlock node,
IModuleResult containingModule,
List <Func <PrepareStatement, bool> > prepStatementBinders,
Func <ReturnStatement, ParserResult> returnStatementBinder = null,
Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null,
List <TokenKind> validExitKeywords = null,
IEnumerable <ContextStatementFactory> contextStatementFactories = null,
HashSet <TokenKind> endKeywords = null)
{
node = new ConstructControlBlock();
bool result = true;
node.StartIndex = parser.Token.Span.Start;
node.FieldSpecList = new List <FglNameExpression>();
node.KeyNameList = new List <VirtualKey>();
switch (parser.PeekToken().Kind)
{
case TokenKind.Ampersand:
{
// handle include file
PreprocessorNode preNode;
PreprocessorNode.TryParseNode(parser, out preNode);
node.StartIndex = -1;
break;
}
case TokenKind.BeforeKeyword:
case TokenKind.AfterKeyword:
{
parser.NextToken();
if (parser.PeekToken(TokenKind.FieldKeyword))
{
parser.NextToken();
node.Type = ConstructControlBlockType.Field;
// get the list of field specs
FglNameExpression fieldSpec;
while (FglNameExpression.TryParseNode(parser, out fieldSpec))
{
node.FieldSpecList.Add(fieldSpec);
if (!parser.PeekToken(TokenKind.Comma))
{
break;
}
parser.NextToken();
}
}
else if (parser.PeekToken(TokenKind.ConstructKeyword))
{
parser.NextToken();
node.Type = ConstructControlBlockType.Construct;
}
else
{
parser.ReportSyntaxError("Unexpected token found in construct control block.");
result = false;
}
break;
}
case TokenKind.OnKeyword:
{
parser.NextToken();
switch (parser.PeekToken().Kind)
{
case TokenKind.IdleKeyword:
parser.NextToken();
node.Type = ConstructControlBlockType.Idle;
// get the idle seconds
ExpressionNode idleExpr;
if (FglExpressionNode.TryGetExpressionNode(parser, out idleExpr))
{
node.IdleSeconds = idleExpr;
}
else
{
parser.ReportSyntaxError("Invalid idle-seconds found in construct statement.");
}
break;
case TokenKind.ActionKeyword:
parser.NextToken();
node.Type = ConstructControlBlockType.Action;
// get the action name
FglNameExpression actionName;
if (FglNameExpression.TryParseNode(parser, out actionName))
{
node.ActionName = actionName;
}
else
{
parser.ReportSyntaxError("Invalid action-name found in construct statement.");
}
if (parser.PeekToken(TokenKind.InfieldKeyword))
{
parser.NextToken();
// get the field-spec
if (FglNameExpression.TryParseNode(parser, out actionName))
{
node.ActionField = actionName;
}
else
{
parser.ReportSyntaxError("Invalid field-spec found in construct statement.");
}
}
break;
case TokenKind.KeyKeyword:
parser.NextToken();
node.Type = ConstructControlBlockType.Key;
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
// get the list of key names
VirtualKey keyName;
while (VirtualKey.TryGetKey(parser, out keyName))
{
node.KeyNameList.Add(keyName);
if (!parser.PeekToken(TokenKind.Comma))
{
break;
}
parser.NextToken();
}
if (parser.PeekToken(TokenKind.RightParenthesis))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expected right-paren in construct control block.");
}
}
else
{
parser.ReportSyntaxError("Expected left-paren in construct control block.");
}
break;
default:
parser.ReportSyntaxError("Unexpected token found in input control block.");
//result = false;
break;
}
break;
}
default:
result = false;
break;
}
if (result && node.StartIndex >= 0)
{
// get the dialog statements
FglStatement inputStmt;
prepStatementBinders.Insert(0, node.BindPrepareCursorFromIdentifier);
while (ConstructDialogStatementFactory.TryGetStatement(parser, out inputStmt, containingModule, prepStatementBinders, returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords) && inputStmt != null)
{
node.Children.Add(inputStmt.StartIndex, inputStmt);
}
prepStatementBinders.RemoveAt(0);
if (node.Type == ConstructControlBlockType.None && node.Children.Count == 0)
{
result = false;
}
}
return(result);
}
public static bool TryParseNode(Genero4glParser parser, out DialogControlBlock node,
IModuleResult containingModule,
List <Func <PrepareStatement, bool> > prepStatementBinders,
Func <ReturnStatement, ParserResult> returnStatementBinder = null,
Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null,
List <TokenKind> validExitKeywords = null,
IEnumerable <ContextStatementFactory> contextStatementFactories = null,
HashSet <TokenKind> endKeywords = null)
{
node = new DialogControlBlock();
node.StartIndex = parser.Token.Span.Start;
node.KeyNames = new List <VirtualKey>();
bool result = true;
switch (parser.PeekToken().Kind)
{
case TokenKind.Ampersand:
{
// handle include file
PreprocessorNode preNode;
PreprocessorNode.TryParseNode(parser, out preNode);
node.StartIndex = -1;
break;
}
case TokenKind.BeforeKeyword:
case TokenKind.AfterKeyword:
parser.NextToken();
if (parser.PeekToken(TokenKind.DialogKeyword))
{
parser.NextToken();
node.Type = DialogControlBlockType.Dialog;
}
else
{
parser.ReportSyntaxError("Expected \"dialog\" keyword in dialog statement.");
}
break;
case TokenKind.CommandKeyword:
{
parser.NextToken();
node.Type = DialogControlBlockType.Command;
if (parser.PeekToken(TokenKind.KeyKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
VirtualKey vKey;
while (VirtualKey.TryGetKey(parser, out vKey))
{
node.KeyNames.Add(vKey);
if (parser.PeekToken(TokenKind.Comma))
{
break;
}
parser.NextToken();
}
}
else
{
parser.ReportSyntaxError("Expecting left-paren in dialog statement.");
}
}
ExpressionNode FglNameExpression;
if (FglExpressionNode.TryGetExpressionNode(parser, out FglNameExpression))
{
node.OptionName = FglNameExpression;
}
else
{
parser.ReportSyntaxError("Invalid expression found in dialog statement.");
}
if (!parser.PeekToken(TokenKind.HelpKeyword) && parser.PeekToken(TokenCategory.StringLiteral))
{
ExpressionNode commentExpr;
if (FglExpressionNode.TryGetExpressionNode(parser, out commentExpr, new List <TokenKind> {
TokenKind.HelpKeyword
}))
{
node.OptionComment = commentExpr;
}
else
{
parser.ReportSyntaxError("Invalid expression found in dialog statement.");
}
}
if (parser.PeekToken(TokenKind.HelpKeyword))
{
parser.NextToken();
ExpressionNode optionNumber;
if (FglExpressionNode.TryGetExpressionNode(parser, out optionNumber))
{
node.HelpNumber = optionNumber;
}
else
{
parser.ReportSyntaxError("Invalid expression found in dialog statement.");
}
}
break;
}
case TokenKind.OnKeyword:
{
parser.NextToken();
switch (parser.PeekToken().Kind)
{
case TokenKind.ActionKeyword:
parser.NextToken();
node.Type = DialogControlBlockType.Action;
FglNameExpression nameExpr;
if (FglNameExpression.TryParseNode(parser, out nameExpr))
{
node.ActionName = nameExpr;
}
else
{
parser.ReportSyntaxError("Invalid name found in dialog statement.");
}
break;
case TokenKind.KeyKeyword:
parser.NextToken();
node.Type = DialogControlBlockType.Key;
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
VirtualKey vKey;
while (VirtualKey.TryGetKey(parser, out vKey))
{
node.KeyNames.Add(vKey);
if (parser.PeekToken(TokenKind.Comma))
{
break;
}
parser.NextToken();
}
}
else
{
parser.ReportSyntaxError("Expecting left-paren in dialog statement.");
}
break;
case TokenKind.IdleKeyword:
parser.NextToken();
node.Type = DialogControlBlockType.Idle;
// get the idle seconds
ExpressionNode idleExpr;
if (FglExpressionNode.TryGetExpressionNode(parser, out idleExpr))
{
node.IdleSeconds = idleExpr;
}
else
{
parser.ReportSyntaxError("Invalid idle-seconds found in dialog statement.");
}
break;
default:
parser.ReportSyntaxError("Unexpected token found in dialog control block.");
break;
}
break;
}
default:
break;
}
if (result && node.StartIndex >= 0)
{
// get the dialog statements
FglStatement inputStmt;
prepStatementBinders.Insert(0, node.BindPrepareCursorFromIdentifier);
while (DialogStatementFactory.TryGetStatement(parser, out inputStmt, containingModule, prepStatementBinders, returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords) && inputStmt != null)
{
node.Children.Add(inputStmt.StartIndex, inputStmt);
}
prepStatementBinders.RemoveAt(0);
if (node.Type == DialogControlBlockType.None && node.Children.Count == 0)
{
result = false;
}
}
return(result);
}
public static bool TryParseNode(Genero4glParser parser, out MenuOption node,
IModuleResult containingModule,
List <Func <PrepareStatement, bool> > prepStatementBinders,
Func <ReturnStatement, ParserResult> returnStatementBinder = null,
Action <IAnalysisResult, int, int> limitedScopeVariableAdder = null,
List <TokenKind> validExitKeywords = null,
IEnumerable <ContextStatementFactory> contextStatementFactories = null,
HashSet <TokenKind> endKeywords = null)
{
node = new MenuOption();
bool result = true;
prepStatementBinders.Insert(0, node.BindPrepareCursorFromIdentifier);
switch (parser.PeekToken().Kind)
{
case TokenKind.Ampersand:
{
PreprocessorNode preNode;
PreprocessorNode.TryParseNode(parser, out preNode);
node.StartIndex = -1;
break;
}
case TokenKind.CommandKeyword:
{
parser.NextToken();
node.StartIndex = parser.Token.Span.Start;
bool getOptionName = false;
if (parser.PeekToken(TokenKind.KeyKeyword))
{
parser.NextToken();
if (parser.PeekToken(TokenKind.LeftParenthesis))
{
parser.NextToken();
VirtualKey keyName;
if (VirtualKey.TryGetKey(parser, out keyName))
{
node.KeyName = keyName;
}
else
{
parser.ReportSyntaxError("Invalid key-name found in menu command option.");
}
if (parser.PeekToken(TokenKind.RightParenthesis))
{
parser.NextToken();
}
else
{
parser.ReportSyntaxError("Expecting right-paren in menu command option.");
}
}
else
{
parser.ReportSyntaxError("Expecting left-paren in menu command option.");
}
node.DecoratorEnd = parser.Token.Span.End;
}
else
{
getOptionName = true;
}
// at this point we need to try to get a menu-statement. If it doesn't work, we have some other stuff to gather
FglStatement menuStmt = null;
if (getOptionName || !MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))
{
ExpressionNode optionName;
if (FglExpressionNode.TryGetExpressionNode(parser, out optionName))
{
node.OptionName = optionName;
}
else
{
parser.ReportSyntaxError("Invalid option-name found in menu command option.");
}
node.DecoratorEnd = parser.Token.Span.End;
if (parser.PeekToken(TokenCategory.StringLiteral) ||
parser.PeekToken(TokenCategory.Identifier))
{
ExpressionNode optionComment;
if (FglExpressionNode.TryGetExpressionNode(parser, out optionComment))
{
node.OptionComment = optionComment;
}
}
if (parser.PeekToken(TokenKind.HelpKeyword))
{
parser.NextToken();
ExpressionNode optionNumber;
if (FglExpressionNode.TryGetExpressionNode(parser, out optionNumber))
{
node.HelpNumber = optionNumber;
}
else
{
parser.ReportSyntaxError("Invalid help-number found in menu command option.");
}
}
}
else if (menuStmt != null)
{
node.Children.Add(menuStmt.StartIndex, menuStmt);
}
while (MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords))
{
if (menuStmt != null && !node.Children.ContainsKey(menuStmt.StartIndex))
{
node.Children.Add(menuStmt.StartIndex, menuStmt);
}
}
break;
}
case TokenKind.OnKeyword:
{
parser.NextToken();
node.StartIndex = parser.Token.Span.Start;
if (parser.PeekToken(TokenKind.ActionKeyword))
{
parser.NextToken();
FglNameExpression action;
if (FglNameExpression.TryParseNode(parser, out action))
{
node.ActionName = action;
}
else
{
parser.ReportSyntaxError("Invalid action-name found in menu option.");
}
node.DecoratorEnd = parser.Token.Span.End;
FglStatement menuStmt = null;
while (MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords) && menuStmt != null)
{
node.Children.Add(menuStmt.StartIndex, menuStmt);
}
}
else if (parser.PeekToken(TokenKind.IdleKeyword))
{
parser.NextToken();
ExpressionNode idleExpr;
if (FglExpressionNode.TryGetExpressionNode(parser, out idleExpr))
{
node.IdleSeconds = idleExpr;
}
else
{
parser.ReportSyntaxError("Invalid idle-seconds found in menu block.");
}
node.DecoratorEnd = parser.Token.Span.End;
FglStatement menuStmt = null;
while (MenuStatementFactory.TryGetStatement(parser, out menuStmt, containingModule, prepStatementBinders, returnStatementBinder,
limitedScopeVariableAdder, validExitKeywords, contextStatementFactories, endKeywords) && menuStmt != null)
{
node.Children.Add(menuStmt.StartIndex, menuStmt);
}
}
else
{
parser.ReportSyntaxError("Expecting \"action\" or \"idle\" keyword in menu option.");
}
break;
}
default:
result = false;
break;
}
prepStatementBinders.RemoveAt(0);
node.EndIndex = parser.Token.Span.End;
return(result);
}