Irony — .NET Language Implementation Kit

Thank you for replay. A.B is Not a table.columnname. a.b is custom Text. İ think textliteral works for me

first question is why? you can parse, then convert the parse tree (using a visitor/converter) If you absolutely need it, you can use RegexTerminal. Or FreeTextLiteral

first question is why? you can parse, then convert the parse tree (using a visitor/converter) If you absolutely need it, you can use RegexTerminal. Or FreeTextLiteral

Hi, I try to parse sql script.there is a custom keyword like "A.B". How i can get it with single token. I'm mean Token.Text = A.B

Hi, I try to parse sql script.there is a custom keyword like "A.B". How i can get it with single token. I'm mean Token.Text = A.B

you could try using transient non-terminal(s), to end up with a single AST node that is either identifier or function. Something like: idOrFunc.Rule = identifier | functionExpression; bracedExpr = Lbrace + idOrFunc + RBrace; ... [More] MarkTransient(idOrFunc, braceExpr); You provide AST node types for identifier and functionExpr, but not idOrFunc and bracedExpr - which are transient so should not have AST. At the end in the AST tree you should end up with AST node for one of functionExpr or identifier in all places where expected bracedExpr. Try it, I did not test it, this is just from what I remember how it should work - and this is the case why transient nodes are there. [Less]

you could try using transient non-terminal(s), to end up with a single AST node that is either identifier or function. Something like: idOrFunc.Rule = identifier | functionExpression; bracedExpr = Lbrace + idOrFunc + RBrace; ... [More] MarkTransient(idOrFunc, braceExpr); You provide AST node types for identifier and functionExpr, but not idOrFunc and bracedExpr - which are transient so should not have AST. At the end in the AST tree you should end up with AST node for one of functionExpr or identifier in all places where expected bracedExpr. Try it, I did not test it, this is just from what I remember how it should work - and this is the case why transient nodes are there. [Less]

Rated 5 Stars (out of 5) - Simply and easily developed two DSLs for complex configuration scenarios. Excellent.

Rated 5 Stars (out of 5) - Simply and easily developed two DSLs for complex configuration scenarios. Excellent.

Hi I have this in my grammar to enable me to set the AST builder for a terminal. Dim bracedText = NewTerminal(Function() New QuotedValueLiteral("bracedString", "{", "}", TypeCode.String), GetType(StringExpr)) Private Function NewTerminal(Of TTerm ... [More] As Terminal)(nodeCreator As Func(Of TTerm), astNodeType As Type) As TTerm Dim t = nodeCreator() t.AstConfig.NodeType = astNodeType Return t End Function However, I want to go one step further and be able to decide whether to instantiate a StringExpr or some other AST node. What would I need to event handle/override on the terminal to enable me to decide which AST node I should chose dependent upon the contents of the string between the braces. If you could point me to some sample code, even better. Many thx S [Less]