Le 8 févr. 2011 à 00:34, Evan Lavelle a écrit : > On 07/02/2011 23:13, Tejas Kajarekar wrote: >> Hi Martin, >> If I understand your question correctly, here is a way to have multiple >> scanners and parsers in the same program. > > No, he's asking about using a subset of an existing grammar in a new parser. > > Example: I have a language which includes a complex expression syntax. I also > have a separate preprocessor for the same language, which uses exactly the > same expression syntax. This means that I need to write two completely > separate flex/bison files, and maintain both of them, even though one of them > is a subset of the other one. > > This would be a nice feature - I think it's been asked for before on this > list.
Yes, and that makes it an FAQ, see section 11.5 of the documentation. _______________________________________________ help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison
