On Tue, 28 Jun 2005, Neil Conway wrote: > I'm trying to use Bison to construct a parser for a language A that > needs to allow syntax from a second language B to be embedded within it
[...] > Ideally I'd like to have A's parser > "call into" B's parser, have it accept as much input as it can, and then > return control to A's parser. [...] > Is this possible? > One idea would be to use hand-written parsers for both > languages, although it would be nice to stick with Bison if possible. I think this would be possible using Bison. "Accepting as much input as it can" is tricky. I believe it would be best for it to be a complete statement (in the generic sense) of language B, i.e., the code passed to your B parser will have to reduce to the start symbol of the B language. I see no difficulty in principle in creating a second parser function using Bison, say 'zzparse()', and calling it in one or more of the actions in your A parser. Laurence Finston _______________________________________________ Help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison
