Hi Dagi Grammars for natural languages are very difficult, and ANTLR is not suited for the general case. Natural languages are a complex structure involving the interaction of phonemics, morphology, syntax and semantics (not to mention general knowledge). Classic illustrations of the sort of problems that can arise are sentences like "flying planes can be dangerous" or "general flies back to front".
However, if you can restrict your corpus to a relatively small, well-defined domain (runways?), you may still be able to create an adequate grammar. But the chances that anyone has already written a grammar for that domain are correspondingly small. And your users are going to have to learn to restrict their language to what the grammar can handle, so you might really be better off writing a simple DSL instead. Steve On 15 Oct 2010, at 10:29, <[email protected]> wrote: > Hi Armin, > > I would like to cover just basic sentences in the English language with the > purpose to let a user formulate simple constraints for a modelling > environment. For the beginning sentences like > > "The length of a runway is not greater than 5000 metres" > Or > "If the runway is dependent then the distance is smaller than 1000 metres" > > Thanks for any advice, > > Dagi > > -----Ursprüngliche Nachricht----- > Von: [email protected] [mailto:[email protected]] > Gesendet: Freitag, 15. Oktober 2010 07:47 > An: Trögner, Dagi > Betreff: AW: [antlr-interest] Grammar natural language > > Hi Dagi, > > for which one? Most likely you will have a separate grammar for each natural > language. > > Armin > > -----Ursprüngliche Nachricht----- > Von: [email protected] > [mailto:[email protected]] Im Auftrag von [email protected] > Gesendet: Donnerstag, 14. Oktober 2010 14:39 > An: [email protected] > Betreff: [antlr-interest] Grammar natural language > > Hi everyone, > > I am looking for a simple grammar for natural language. In a first version > just short simple sentences would be satisfying. > Has anyone tried to formulated such a grammar already? > > Thanks a lot, > > Dagi > > > ******************************************************** > > > > Dagi Troegner > > Deutsches Zentrum fuer Luft- und Raumfahrt (DLR) > > Institut fuer Flugfuehrung > > Abteilung Lotsenassistenz > > Lilienthalplatz 7 > > D-38108 Braunschweig > > Telefon: (49) 531 / 295-2189 > > Fax: (49) 531 / 295-2180 > > Email: [email protected]<mailto:[email protected]> > > __/|__ > > /_/_/_/ > > |/ DLR > > ******************************************************** > > > List: http://www.antlr.org/mailman/listinfo/antlr-interest > Unsubscribe: > http://www.antlr.org/mailman/options/antlr-interest/your-email-address > > > List: http://www.antlr.org/mailman/listinfo/antlr-interest > Unsubscribe: > http://www.antlr.org/mailman/options/antlr-interest/your-email-address > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
