A few days ago Terence Parr merged the ANTLR4 C++ runtime into the main ANTLR4 repository. So it is now part of the official distribution. I had some trouble getting the runtime tests compiling on Travis CI but finally the job is done. Let’s celebrate the achievement.
So far I’ve been an enthusiastic user of ANTLR3, mostly for the MySQL Workbench product, where I based all the parsing infrastructure on the ANTLR3 C runtime. However, with the appearence of v4 a few years ago this ANTLR version got outdated and the support for it decreased constantly since