private static void ParseTag(Scope scope, GroupToken parent, KeywordToken tagToken, string[] endTokens)
{
var code = scope.Code;
parent.AddToken(tagToken);
var resetPos = code.Position;
if (code.ReadTagName() && ProbeEnvironment.IsValidTagName(code.Text))
{
parent.AddToken(new KeywordToken(scope, code.Span, code.Text));
if (code.ReadStringLiteral())
{
parent.AddToken(new StringLiteralToken(scope, code.Span, code.Text));
return;
}
}
else
{
code.Position = resetPos;
}
var exp = ExpressionToken.TryParse(scope, endTokens);
if (exp != null)
{
parent.AddToken(exp);
}
}
public static ComparisonOperator Parse(Scope scope, Token lastToken, OperatorToken opToken, IEnumerable <string> endTokens)
{
var ret = new ComparisonOperator(scope);
if (lastToken != null)
{
ret._expectedDataType = lastToken.ValueDataType;
if (ret._expectedDataType != null)
{
ret.AddToken(lastToken);
}
}
ret.AddToken(opToken);
if (endTokens == null || !endTokens.Any())
{
endTokens = _endTokens;
}
else
{
endTokens = endTokens.Concat(_endTokens).ToArray();
}
var rightExp = ExpressionToken.TryParse(scope, endTokens, expectedDataType: ret._expectedDataType);
if (rightExp != null)
{
ret.AddToken(rightExp);
}
return(ret);
}
public static ReturnStatement Parse(Scope scope, KeywordToken returnToken)
{
var ret = new ReturnStatement(scope);
ret.AddToken(returnToken);
var code = scope.Code;
if (code.ReadExact(';'))
{
ret.AddToken(new StatementEndToken(scope, code.Span));
return(ret);
}
var exp = ExpressionToken.TryParse(scope, null, expectedDataType: scope.ReturnDataType);
if (exp != null)
{
ret.AddToken(exp);
}
if (code.ReadExact(';'))
{
ret.AddToken(new StatementEndToken(scope, code.Span));
}
return(ret);
}
public static RowColStatement Parse(Scope scope, KeywordToken rowColToken)
{
var ret = new RowColStatement(scope);
ret.AddToken(rowColToken);
var code = scope.Code;
if (code.PeekExact('+') || code.PeekExact('-'))
{
ret.AddToken(new OperatorToken(scope, code.MovePeekedSpan(), code.Text));
}
if (code.ReadNumber())
{
ret.AddToken(new NumberToken(scope, code.Span, code.Text));
}
var exp = ExpressionToken.TryParse(scope, null);
if (exp != null)
{
ret.AddToken(exp);
}
if (code.PeekExact(';'))
{
ret.AddToken(new StatementEndToken(scope, code.Span));
}
return(ret);
}
private static void ParseFunctionAttributes(Scope scope, GroupToken parentToken)
{
var code = scope.Code;
while (!code.EndOfFile)
{
if (code.PeekExact(';') || code.PeekExact('{') || code.PeekExact('}'))
{
return;
}
if (code.ReadWord())
{
switch (code.Text)
{
case "description":
case "prompt":
case "comment":
case "BEGINHLP":
case "accel":
{
parentToken.AddToken(new KeywordToken(scope, code.Span, code.Text));
var exp = ExpressionToken.TryParse(scope, _attribEndTokens);
if (exp != null)
{
parentToken.AddToken(exp);
}
}
break;
case "nomenu":
case "ENDHLP":
parentToken.AddToken(new KeywordToken(scope, code.Span, code.Text));
break;
case "tag":
{
parentToken.AddToken(new KeywordToken(scope, code.Span, code.Text));
if (code.ReadTagName())
{
parentToken.AddToken(new KeywordToken(scope, code.Span, code.Text));
}
var exp = ExpressionToken.TryParse(scope, _attribEndTokens);
if (exp != null)
{
parentToken.AddToken(exp);
}
}
break;
default:
return;
}
}
else
{
break;
}
}
}
private void ParseCreateStringdef()
{
var code = Code;
var word = code.PeekWordR();
var sd = DkDict.Dict.GetStringdef(word);
if (sd != null)
{
AddToken(new IdentifierToken(Scope, code.Span, word, sd.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createStringdefEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
while (!code.EndOfFile)
{
if (code.ReadExact(';'))
{
AddToken(new StatementEndToken(Scope, code.Span));
break;
}
if (code.ReadStringLiteral())
{
AddToken(new StringLiteralToken(Scope, code.Span, code.Text));
if (code.ReadNumber())
{
AddToken(new NumberToken(Scope, code.Span, code.Text));
}
continue;
}
else if (code.ReadExactWholeWord("description"))
{
AddToken(new KeywordToken(Scope, code.Span, "description"));
while (code.ReadStringLiteral())
{
AddToken(new StringLiteralToken(Scope, code.Span, code.Text));
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createStringdefEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
}
private void ParseCreateTypedef()
{
var code = Code;
var word = code.PeekWordR();
if (!string.IsNullOrEmpty(word))
{
var td = DkDict.Dict.GetTypedef(word);
if (td != null)
{
AddToken(new IdentifierToken(Scope, code.Span, word, td.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createTypedefEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
var dt = DataType.TryParse(new DataType.ParseArgs
{
Code = code,
Scope = Scope,
TokenCreateCallback = token =>
{
AddToken(token);
},
VisibleModel = true,
AllowTags = true
});
if (dt != null)
{
if (code.PeekWordR() == "description")
{
AddToken(new KeywordToken(Scope, code.Span, "description"));
while (code.ReadStringLiteral())
{
AddToken(new StringLiteralToken(Scope, code.Span, code.Text));
}
}
if (code.ReadExact(';'))
{
AddToken(new StatementEndToken(Scope, code.Span));
}
}
}
}
public static CastStatement Parse(Scope scope, BracketsToken castToken, IEnumerable <string> endTokens)
{
var ret = new CastStatement(scope);
ret.AddToken(castToken);
ret._castDataType = castToken.CastDataType;
var exp = ExpressionToken.TryParse(scope, endTokens, expectedDataType: ret._castDataType);
if (exp != null)
{
ret.AddToken(exp);
}
return(ret);
}
public static FormatStatement Parse(Scope scope, KeywordToken formatToken)
{
var ret = new FormatStatement(scope);
ret.AddToken(formatToken);
var code = scope.Code;
while (true)
{
if (code.ReadExact(';'))
{
ret.AddToken(new StatementEndToken(scope, code.Span));
break;
}
var word = code.PeekWordR();
if (string.IsNullOrEmpty(word))
{
break;
}
if (word == "rows" || word == "cols" || word == "genpages" || word == "outfile")
{
ret.AddToken(new KeywordToken(scope, code.MovePeekedSpan(), word));
if (code.ReadExact('='))
{
ret.AddToken(new OperatorToken(scope, code.Span, "="));
}
var exp = ExpressionToken.TryParse(scope, _endTokens);
if (exp != null)
{
ret.AddToken(exp);
}
else
{
break;
}
}
else
{
break;
}
}
return(ret);
}
public static ConditionalOperator Parse(Scope scope, Token lastToken, OperatorToken opToken, IEnumerable <string> endTokens, DataType expectedDataType)
{
var ret = new ConditionalOperator(scope);
if (lastToken != null)
{
ret.AddToken(lastToken);
}
ret.AddToken(opToken);
if (endTokens == null)
{
endTokens = _endTokens;
}
else
{
endTokens = endTokens.Concat(_endTokens).ToArray();
}
var leftResultExp = ExpressionToken.TryParse(scope, endTokens, expectedDataType: expectedDataType);
if (leftResultExp != null)
{
ret.AddToken(leftResultExp);
ret._completionDataType = leftResultExp.ValueDataType;
if (scope.Code.ReadExact(':'))
{
var rightResultExp = ExpressionToken.TryParse(scope, endTokens, expectedDataType: expectedDataType);
if (rightResultExp != null)
{
ret.AddToken(rightResultExp);
}
}
}
return(ret);
}
public static AssignmentOperator Parse(Scope scope, Token lastToken, OperatorToken opToken, IEnumerable <string> endTokens)
{
var ret = new AssignmentOperator(scope);
if (lastToken != null)
{
ret._expectedDataType = lastToken.ValueDataType;
if (ret._expectedDataType != null)
{
ret.AddToken(lastToken);
}
}
ret.AddToken(opToken);
var rightExp = ExpressionToken.TryParse(scope, endTokens, expectedDataType: ret._expectedDataType);
if (rightExp != null)
{
ret.AddToken(rightExp);
}
return(ret);
}
private void ParseAlterTable()
{
var code = Code;
DkDict.Table table = null;
ExpressionToken exp;
var word = code.PeekWordR();
if (!string.IsNullOrEmpty(word) && (table = DkDict.Dict.GetTable(word)) != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, table.Definition));
}
else
{
if ((exp = ExpressionToken.TryParse(Scope, _alterTableEndTokens)) != null)
{
AddToken(exp);
}
}
ParseTableAttributes(_alterTableEndTokens);
if (code.ReadExact(';'))
{
AddToken(new StatementEndToken(Scope, code.Span));
return;
}
if (code.ReadExactWholeWord("before") ||
code.ReadExactWholeWord("after"))
{
AddToken(new KeywordToken(Scope, code.Span, code.Text));
}
if (code.ReadExactWholeWord("column"))
{
AddToken(new KeywordToken(Scope, code.Span, code.Text));
}
if (table != null)
{
var field = table.GetColumn(code.PeekWordR());
if (field != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), code.Text, field.Definition));
}
else
{
if ((exp = ExpressionToken.TryParse(Scope, _alterTableEndTokens)) != null)
{
AddToken(exp);
}
}
}
if (code.ReadExactWholeWord("add") ||
code.ReadExactWholeWord("alter") ||
code.ReadExactWholeWord("drop") ||
code.ReadExactWholeWord("move"))
{
AddToken(new KeywordToken(Scope, code.Span, code.Text));
}
if (code.ReadExactWholeWord("column"))
{
AddToken(new KeywordToken(Scope, code.Span, code.Text));
}
if (code.ReadExactWholeWord("sametype"))
{
AddToken(new KeywordToken(Scope, code.Span, code.Text));
}
else
{
var dataType = DataType.TryParse(new DataType.ParseArgs
{
Code = code,
Scope = Scope,
TokenCreateCallback = token =>
{
AddToken(token);
},
VisibleModel = true,
AllowTags = true
});
}
TryParseColumnDefinition(Scope, this, table != null ? table.Definition : null, false);
if (code.ReadExact(';'))
{
AddToken(new StatementEndToken(Scope, code.Span));
}
}
public static ForStatement Parse(Scope scope, KeywordToken forToken)
{
var ret = new ForStatement(scope);
var code = scope.Code;
ret.AddToken(forToken);
if (!code.ReadExact('('))
{
return(ret);
}
var brackets = new BracketsToken(scope);
brackets.AddOpen(code.Span);
ret.AddToken(brackets);
// Initializer
var exp = ExpressionToken.TryParse(scope, _conditionEndTokens);
if (exp != null)
{
brackets.AddToken(exp);
}
if (!code.ReadExact(';'))
{
return(ret);
}
// Condition
exp = ExpressionToken.TryParse(scope, _conditionEndTokens);
if (exp != null)
{
brackets.AddToken(exp);
}
if (!code.ReadExact(';'))
{
return(ret);
}
// Increment
exp = ExpressionToken.TryParse(scope, _conditionEndTokens);
if (exp != null)
{
brackets.AddToken(exp);
}
if (!code.ReadExact(')'))
{
return(ret);
}
brackets.AddClose(code.Span);
// Body
var bodyScope = scope.Clone();
bodyScope.BreakOwner = ret;
bodyScope.ContinueOwner = ret;
if (!code.PeekExact('{'))
{
return(ret);
}
var body = BracesToken.Parse(bodyScope, null);
ret.AddToken(body);
return(ret);
}
private void ParseCreateTimeRelationship()
{
var code = Code;
var word = code.PeekWordR();
var relind = DkDict.Dict.GetRelInd(word);
if (relind != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, relind.Definition));
}
else
{
return;
}
if (code.ReadNumber())
{
AddToken(new NumberToken(Scope, code.Span, code.Text));
}
else
{
return;
}
DkDict.Table table = null;
while (!code.EndOfFile)
{
if (code.PeekExact('(') || code.PeekExact('{'))
{
break;
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if (word == "prompt" || word == "comment" || word == "description")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), word));
var exp = ExpressionToken.TryParse(Scope, _createTimeRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
else if (word == "tag")
{
ParseTag(Scope, this, new KeywordToken(Scope, code.MovePeekedSpan(), word), _createTimeRelationshipEndTokens);
}
else if (word == "order")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), "order"));
if (code.ReadExactWholeWord("by"))
{
AddToken(new KeywordToken(Scope, code.Span, "by"));
while (!code.EndOfFile)
{
if (code.PeekExact('(') || code.PeekExact('{'))
{
break;
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
var field = table != null?table.GetColumn(word) : null;
if (field != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, field.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createTimeRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
}
}
}
else if (word == "to")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), "to"));
if ((table = DkDict.Dict.GetTable(word)) != null)
{
AddToken(new IdentifierToken(Scope, code.Span, word, table.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createTimeRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
else if ((table = DkDict.Dict.GetTable(word)) != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, table.Definition));
if (code.ReadExactWholeWord("to"))
{
AddToken(new KeywordToken(Scope, code.Span, "to"));
if ((table = DkDict.Dict.GetTable(word)) != null)
{
AddToken(new IdentifierToken(Scope, code.Span, word, table.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createTimeRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createTimeRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createTimeRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
if (code.PeekExact('('))
{
AddToken(BracketsToken.Parse(Scope, expectedDataType: null));
}
}
private void ParseCreateWorkspace()
{
var code = Code;
var word = code.PeekWordR();
if (!string.IsNullOrEmpty(word))
{
AddToken(new UnknownToken(Scope, code.MovePeekedSpan(), word));
}
else
{
return;
}
while (true)
{
if (code.PeekExact('('))
{
break;
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if (word == "prompt" || word == "comment" || word == "description" || word == "image")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), word));
var exp = ExpressionToken.TryParse(Scope, _createWorkspaceEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
else if (word == "tag")
{
ParseTag(Scope, this, new KeywordToken(Scope, code.MovePeekedSpan(), "tag"), _createWorkspaceEndTokens);
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createWorkspaceEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createWorkspaceEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
if (code.ReadExact('('))
{
var brackets = new BracketsToken(Scope);
brackets.AddOpen(code.Span);
AddToken(brackets);
while (true)
{
if (code.ReadExact(')'))
{
brackets.AddClose(code.Span);
break;
}
if (code.ReadExact(','))
{
brackets.AddToken(new DelimiterToken(Scope, code.Span));
}
if (code.ReadWord())
{
brackets.AddToken(new UnknownToken(Scope, code.Span, code.Text));
DkDict.Table table = null;
do
{
table = DkDict.Dict.GetTable(code.PeekWordR());
if (table != null)
{
brackets.AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), code.Text, table.Definition));
if (code.ReadExact('\\'))
{
brackets.AddToken(new OperatorToken(Scope, code.Span, code.Text));
}
}
}while (table != null);
while (true)
{
if (code.ReadExact(','))
{
brackets.AddToken(new DelimiterToken(Scope, code.Span));
break;
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if (word == "prompt" || word == "comment")
{
brackets.AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), word));
var exp = ExpressionToken.TryParse(Scope, _createWorkspaceColumnEndTokens);
if (exp != null)
{
brackets.AddToken(exp);
}
}
else if (word == "preload")
{
brackets.AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), word));
}
else if (word == "tag")
{
ParseTag(Scope, brackets, new KeywordToken(Scope, code.MovePeekedSpan(), "tag"), _createWorkspaceColumnEndTokens);
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createWorkspaceColumnEndTokens);
if (exp != null)
{
brackets.AddToken(exp);
}
else
{
break;
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createWorkspaceColumnEndTokens);
if (exp != null)
{
brackets.AddToken(exp);
}
else
{
break;
}
}
}
}
}
}
}
private void ParseCreateIndex()
{
var code = Code;
DkDict.RelInd relind = null;
DkDict.Table table = null;
string word;
if (code.ReadExactWholeWord("primary"))
{
AddToken(new KeywordToken(Scope, code.Span, "primary"));
}
if (code.ReadExactWholeWord("nopick"))
{
AddToken(new KeywordToken(Scope, code.Span, "nopick"));
}
if (code.ReadExactWholeWord("NOPICK"))
{
AddToken(new KeywordToken(Scope, code.Span, "NOPICK"));
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if ((relind = DkDict.Dict.GetRelInd(word)) != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, relind.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createIndexEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createIndexEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
if (code.ReadExactWholeWord("on"))
{
AddToken(new KeywordToken(Scope, code.Span, "on"));
if (!string.IsNullOrEmpty(word = code.PeekWordR()) &&
(table = DkDict.Dict.GetTable(word)) != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, table.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createIndexEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
while (!code.EndOfFile)
{
if (code.PeekExact('(') || code.PeekExact('{'))
{
break;
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if (word == "description")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), "description"));
var exp = ExpressionToken.TryParse(Scope, _createIndexEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
else if (word == "tag")
{
ParseTag(Scope, this, new KeywordToken(Scope, code.MovePeekedSpan(), "tag"), _createIndexEndTokens);
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createIndexEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createIndexEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
if (code.ReadExact('(') || code.ReadExact('{'))
{
var brackets = new BracketsToken(Scope);
brackets.AddOpen(code.Span);
AddToken(brackets);
DkDict.Column field = null;
while (!code.EndOfFile)
{
if (code.ReadExact(')') || code.ReadExact('}'))
{
brackets.AddClose(code.Span);
break;
}
if (code.ReadExact(','))
{
brackets.AddToken(new DelimiterToken(Scope, code.Span));
}
if (table != null &&
!string.IsNullOrEmpty(word = code.PeekWordR()) &&
(field = table.GetColumn(word)) != null)
{
brackets.AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, field.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createIndexColumnEndTokens);
if (exp != null)
{
brackets.AddToken(exp);
}
else
{
break;
}
}
}
}
}
private void ParseCreateRelationship(KeywordToken relationshipToken)
{
AddToken(relationshipToken);
var code = Code;
var word = code.PeekWordR();
var relind = DkDict.Dict.GetRelInd(word);
if (relind != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, relind.Definition));
if (code.ReadNumber())
{
AddToken(new NumberToken(Scope, code.Span, code.Text));
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
DkDict.Table table = null;
var done = false;
while (!code.EndOfFile && !done)
{
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if (word == "updates")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), word));
}
else if (word == "prompt" || word == "comment" || word == "image" || word == "description")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), word));
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
else if (word == "one" || word == "many")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), word));
word = code.PeekWordR();
if (!string.IsNullOrEmpty(word))
{
table = DkDict.Dict.GetTable(word);
if (table != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, table.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
else if (word == "to")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), "to"));
if (code.ReadExactWholeWord("one") || code.ReadExactWholeWord("many"))
{
AddToken(new KeywordToken(Scope, code.Span, code.Text));
word = code.PeekWordR();
if (!string.IsNullOrEmpty(word))
{
table = DkDict.Dict.GetTable(word);
if (table != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, table.Definition));
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
}
}
}
else if (word == "order")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), "order"));
if (code.ReadExactWholeWord("by"))
{
AddToken(new KeywordToken(Scope, code.Span, "by"));
if (code.ReadExactWholeWord("unique"))
{
AddToken(new KeywordToken(Scope, code.Span, "unique"));
}
while (!code.EndOfFile)
{
if (code.PeekExact('(') || code.PeekExact('{'))
{
break;
}
if (table != null && !string.IsNullOrEmpty(word = code.PeekWordR()))
{
var field = table.GetColumn(word);
if (field != null)
{
AddToken(new IdentifierToken(Scope, code.MovePeekedSpan(), word, field.Definition));
}
else
{
break;
}
}
else
{
break;
}
}
}
}
else if (word == "tag")
{
ParseTag(Scope, this, new KeywordToken(Scope, code.MovePeekedSpan(), "tag"), _createRelationshipEndTokens);
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
else if (code.ReadExact('(') || code.ReadExact('{'))
{
var brackets = new BracketsToken(Scope);
brackets.AddOpen(code.Span);
AddToken(brackets);
while (!code.EndOfFile)
{
if (code.ReadExact(')') || code.ReadExact('}'))
{
brackets.AddClose(code.Span);
done = true;
break;
}
if (!TryParseColumnDefinition(Scope, brackets, relind != null ? relind.Definition : null, true))
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
}
else
{
var exp = ExpressionToken.TryParse(Scope, _createRelationshipEndTokens);
if (exp != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
}
private void ParseCreateTable(KeywordToken tableToken)
{
AddToken(tableToken);
var code = Code;
// Table name
if (!code.ReadWord())
{
return;
}
var table = DkDict.Dict.GetTable(code.Text);
if (table != null)
{
AddToken(new IdentifierToken(Scope, code.Span, code.Text, table.Definition));
}
else
{
AddToken(new UnknownToken(Scope, code.Span, code.Text));
}
// Table number
if (!code.ReadNumber())
{
return;
}
AddToken(new NumberToken(Scope, code.Span, code.Text));
// Table number+1
if (Code.ReadNumber())
{
AddToken(new NumberToken(Scope, code.Span, code.Text));
}
ExpressionToken exp;
// Attributes
ParseTableAttributes(_createTableEndTokens);
BracketsToken brackets = null;
BracesToken braces = null;
GroupToken parent = null;
if (code.ReadExact('('))
{
brackets = new BracketsToken(Scope);
brackets.AddOpen(code.Span);
AddToken(brackets);
parent = brackets;
}
else if (code.ReadExact('{'))
{
braces = new BracesToken(Scope);
braces.AddOpen(code.Span);
AddToken(braces);
parent = braces;
}
else
{
return;
}
// Columns
while (!code.EndOfFile)
{
if (code.ReadExact(')') || code.ReadExact('}'))
{
if (brackets != null)
{
brackets.AddClose(code.Span);
}
else if (braces != null)
{
braces.AddClose(code.Span);
}
return;
}
if (code.ReadExact(','))
{
parent.AddToken(new DelimiterToken(Scope, code.Span));
continue;
}
if (!TryParseColumnDefinition(Scope, parent, table != null ? table.Definition : null, true))
{
if ((exp = ExpressionToken.TryParse(Scope, _columnEndTokens)) != null)
{
parent.AddToken(exp);
}
else
{
break;
}
}
}
}
private void ParseTableAttributes(string[] endTokens)
{
var code = Code;
string word;
ExpressionToken exp;
while (true)
{
if (code.PeekExact('(') || code.PeekExact('{'))
{
break;
}
if (!code.Peek())
{
break;
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if (word == "updates" || word == "display" || word == "modal" || word == "nopick" || word == "pick")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), code.Text));
continue;
}
if (word == "database" || word == "snapshot" || word == "prompt" || word == "comment" || word == "image" ||
word == "description" || word == "updates")
{
AddToken(new KeywordToken(Scope, code.MovePeekedSpan(), code.Text));
if ((exp = ExpressionToken.TryParse(Scope, endTokens)) != null)
{
AddToken(exp);
}
continue;
}
if (word == "tag")
{
ParseTag(Scope, this, new KeywordToken(Scope, code.MovePeekedSpan(), "tag"), endTokens);
continue;
}
if ((exp = ExpressionToken.TryParse(Scope, endTokens)) != null)
{
AddToken(exp);
}
else
{
break;
}
}
else
{
if ((exp = ExpressionToken.TryParse(Scope, endTokens)) != null)
{
AddToken(exp);
}
else
{
break;
}
}
}
}
private static bool TryParseColumnDefinition(Scope scope, GroupToken parent, Definition parentDef, bool includeNameAndDataType)
{
string word;
var code = scope.Code;
ExpressionToken exp;
if (includeNameAndDataType)
{
// Column name
if (parentDef != null && parentDef.AllowsChild)
{
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
var childDef = parentDef.GetChildDefinitions(word).FirstOrDefault();
if (childDef != null)
{
parent.AddToken(new IdentifierToken(scope, code.MovePeekedSpan(), code.Text, childDef));
}
}
else
{
return(false);
}
}
else
{
return(false);
}
// Data type
if ((exp = ExpressionToken.TryParse(scope, _columnEndTokens)) != null)
{
parent.AddToken(exp);
}
}
// Column attributes
while (!code.EndOfFile)
{
if (code.PeekExact(')') || code.PeekExact('}') || code.PeekExact(','))
{
break;
}
if (!string.IsNullOrEmpty(word = code.PeekWordR()))
{
if (word == "prompt" || word == "comment" || word == "group" || word == "row" || word == "col" ||
word == "rows" || word == "cols" || word == "image")
{
parent.AddToken(new KeywordToken(scope, code.MovePeekedSpan(), code.Text));
if ((exp = ExpressionToken.TryParse(scope, _columnEndTokens)) != null)
{
parent.AddToken(exp);
}
continue;
}
if (word == "endgroup" || word == "form" || word == "formonly" || word == "zoom" || word == "tool")
{
parent.AddToken(new KeywordToken(scope, code.MovePeekedSpan(), code.Text));
continue;
}
if (word == "tag")
{
ParseTag(scope, parent, new KeywordToken(scope, code.MovePeekedSpan(), "tag"), _columnEndTokens);
continue;
}
if ((exp = ExpressionToken.TryParse(scope, _columnEndTokens)) != null)
{
parent.AddToken(exp);
}
else
{
break;
}
}
else
{
if ((exp = ExpressionToken.TryParse(scope, _columnEndTokens)) != null)
{
parent.AddToken(exp);
}
else
{
break;
}
}
}
if (code.ReadExact(','))
{
parent.AddToken(new DelimiterToken(scope, code.Span));
}
return(true);
}
public static ExtractStatement Parse(Scope scope, KeywordToken extractKeywordToken)
{
var code = scope.Code;
var tokens = new List <Token>();
tokens.Add(extractKeywordToken);
var permanent = false;
if (code.ReadExactWholeWord("permanent"))
{
var permToken = new KeywordToken(scope, code.Span, "permanent");
tokens.Add(permToken);
permanent = true;
}
ExtractTableDefinition exDef = null;
string name = null;
if (!code.ReadWord())
{
// Not correct syntax; exit here.
return(new ExtractStatement(scope, tokens)
{
_fields = new ExtractFieldDefinition[0]
});
}
else if ((exDef = scope.DefinitionProvider.GetGlobalFromFile <ExtractTableDefinition>(code.Text).FirstOrDefault()) == null)
{
// The extract definition would have been added by the preprocessor. If it's not recognized here, then it's incorrect syntax.
return(new ExtractStatement(scope, tokens)
{
_fields = new ExtractFieldDefinition[0]
});
}
else
{
name = code.Text;
tokens.Add(new ExtractTableToken(scope, code.Span, name, exDef));
}
var ret = new ExtractStatement(scope, tokens);
ret._name = name;
ret._permanent = permanent;
var scope2 = scope.CloneIndent();
scope2.Hint |= ScopeHint.SuppressControlStatements | ScopeHint.SuppressFunctionDefinition | ScopeHint.SuppressVarDecl;
var fieldTokens = new List <ExtractFieldToken>();
while (!code.EndOfFile)
{
if (code.ReadExact(';'))
{
ret.AddToken(new StatementEndToken(scope2, code.Span));
break;
}
ExtractFieldDefinition fieldDef;
if ((fieldDef = exDef.GetField(code.PeekWordR())) != null)
{
var fieldToken = new ExtractFieldToken(scope, code.MovePeekedSpan(), code.Text, fieldDef);
fieldTokens.Add(fieldToken);
ret.AddToken(fieldToken);
}
else
{
break;
}
if (!code.PeekExact("==") && code.PeekExact('='))
{
var equalsToken = new OperatorToken(scope, code.MovePeekedSpan(), code.Text);
ret.AddToken(equalsToken);
}
else
{
break;
}
var oldValue = code.StopAtLineEnd;
code.StopAtLineEnd = true;
try
{
while (true)
{
var exp = ExpressionToken.TryParse(scope, null, expectedDataType: fieldDef.DataType);
if (exp != null)
{
ret.AddToken(exp);
if (fieldDef.DataType == null)
{
fieldDef.SetDataType(exp.ValueDataType);
}
}
else
{
break;
}
}
}
finally
{
code.StopAtLineEnd = oldValue;
}
}
var fields = new List <ExtractFieldDefinition>();
var rownoDef = new ExtractFieldDefinition("rowno", exDef.FilePosition, exDef);
rownoDef.SetDataType(DataType.Unsigned9);
fields.Add(rownoDef);
fields.AddRange(from f in fieldTokens select f.SourceDefinition as ExtractFieldDefinition);
ret._fields = fields.ToArray();
return(ret);
}
