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Glossary

action: The C or C++ code associated with a flex pattern or a bison rule. When the pattern or rule matches an input sequence, the action code is executed.

alphabet: A set of distinct symbols. For example, the ASCII character set is a collection of 128 different symbols. In a flex specification, the alphabet is the native character set of the computer. In a bison grammar, the alphabet is the set of tokens and nonterminals used in the grammar.

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