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8 Debugging Your Parser

Developing a parser can be a challenge, especially if you don’t understand the algorithm (see The Bison Parser Algorithm). This chapter explains how understand and debug a parser.

The first sections focus on the static part of the parser: its structure. They explain how to generate and read the detailed description of the automaton. There are several formats available:

The last section focuses on the dynamic part of the parser: how to enable and understand the parser run-time traces (see Tracing Your Parser).