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The previous fix does not suffice, and actually managed to make things worse by defining yyscan_t twice in parse.y... Reported by kencu. https://trac.macports.org/ticket/59927#comment:29 * examples/c/reccalc/parse.y (yyscan_t): Define it with the same guards as used by Flex.
This directory contains examples of Bison grammar files, sorted per language.
Several of them come from the documentation, which should be installed together with Bison. The URLs are provided for convenience.
These examples come with a README and a Makefile. Not only can they be used to toy with Bison, they can also be starting points for your own grammars.
Please, be sure to read the C examples before looking at the other languages, as these examples are simpler.