Hi Kevin, hi Akim, I can imagine cases where having a longer list of expected tokens might be useful. However, I wouldn’t like to have them in a string stitched together by bison, but instead I would like to have access to them in a std::vector<TokenId> or something similar. That way, I could do some post-processing of the expected token list (e.g., expand the “variable_name” token to all variables which are currently in scope). The result could then be integrated with, e.g., a dropdown list for autocompletion pretty nicely :)
Having programmatic access to the list of expected tokens would probably also solve Kevin’s request for reporting more than 5 tokens: he could just do it himself in his own code after getting the token list from Bison. Cheers, Adrian From: help-bison <help-bison-bounces+avogelsgesang=tableau....@gnu.org> on behalf of Akim Demaille <a...@lrde.epita.fr> Date: Wednesday, 6 February 2019 at 10:43 To: Kevin Villela <ke...@villela.com> Cc: Bison Help <help-bison@gnu.org> Subject: Re: Forcing Bison's yacc.c to report more expected tokens on syntax error Hi Kevin, > Le 6 févr. 2019 à 03:01, Kevin Villela <ke...@villela.com> a écrit : > > Hi all, I saw that the yacc.c skeleton only supports reporting a maximum or > 5 expected tokens. The page > <https://www.gnu.org/software/bison/manual/html_node/LAC.html<https://www.gnu.org/software/bison/manual/html_node/LAC.html>> > on > Look-Ahead Correction states this is "because of internationalization > considerations". I was wondering if I would be able to contribute a > configuration option to increase this number arbitrarily, or even just up > to a higher number (e.g. 30) ? The thing is that it's unclear that it actually helps to report all the possibilities when there are too many. _______________________________________________ help-bison@gnu.org https://lists.gnu.org/mailman/listinfo/help-bison<https://lists.gnu.org/mailman/listinfo/help-bison> _______________________________________________ help-bison@gnu.org https://lists.gnu.org/mailman/listinfo/help-bison
