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Bison 3.3 released

Submitted by Roy Schestowitz on Saturday 26th of January 2019 05:31:28 PM Filed under
GNU

We are very happy to announce the release of Bison 3.3!

The new option --update replaces deprecated features with their modern spelling, but also applies fixes such as eliminating duplicate directives, etc. It is now possible to annotate rules with their number of expected conflicts. Bison can be made relocatable. The symbol declaration syntax was overhauled, and in particular, %nterm, that exists since the origins of Bison, is now an officially supported (and documented!) feature. C++ parsers now feature genuine symbol constructors, and use noexcept constexpr. The GLR parsers in C++ now support the syntax_error exceptions. There are also many smaller improvements, including a fix for a bug which is at least 31 years old.

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