simpliest c++ example
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README.md
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README.md
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# Parser
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## Explanation of options:
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```cpp
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// Bison version
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%require "3.0.4"
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// skeleton program to be used as parser
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%skeleton "lalr1.cc"
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// tells bison to generate a header file
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%defines
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// where the parser will live (in what namespace)
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%define api.prefix {yy}
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// the name of parser class
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%define api.parser.class {Parser}
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/* it will generate a location class which can be used in your lexer */
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%locations
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/* use the constructor for each token, and make_TOKENNAME functions will be generated */
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%define api.token.constructor
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/* use the variant type for $1~$n and $$ those variables */
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%define api.value.type variant
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%define parse.trace
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%define parse.error verbose
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```
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