docs/tf_fuzz/source_structure/parser_dir.rst

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'tfz-cpp/parser'-directory guide
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Introduction
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Users' test-template files are parsed using a Lex/YACC grammar, to make the
test-template language easily extensible.  Much of the actual work is done in
helper functions, but the Lex/YACC grammar manages the process.

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``tf_fuzz/tfz-cpp/parser`` directory contents
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.. code-block:: bash

    tf_fuzz_grammar.l  tf_fuzz_grammar.y

This directory contains the Lex and YACC grammars for parsing the TF-Fuzz
command "language," if it can be called that.  The
``tf_fuzz_grammar.tab.cpp/.hpp`` files generated also form the executive for
the entire parsing process.

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