ANTLR, ANother Tool for Language Recognition, is a language tool that provides a framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages.
ApproachâThe route or walk in to the base of a climb. AscenderâAny mechanical device that slides upward when put on a fixed rope but catches when weight is put on it, allowing a climber to use the rope to move upward or to haul gear. Used in aid climbing, mountaineering rescue and caving.
Several winter couloir routes would are clilmbed throughout the winter, and ideally after snow has consolidated early in the year. The Solo Climb of Broken Top trip report details some of the perils involved in winter climbing. The 9 o'clock couloir route page reveals a winter route up the south face of Broken Top. Additional winter route pages, the 11 o'clock couloir and the South Face Gully.